Segment disclosures

Company overview

ORION GROUP HOLDINGS, INC.

Each reported dimension combination stays separate. Revenue and operating income are shown as reported, with their dates and sources.

Revenue · Reported segment facts

14 dimension combinations 726 retained observations 25 reported periods Partial retained history

Counts describe retained dimensioned rows only. Periods and members can change across reports, and this view does not infer missing values or expected segment totals.

Operating Segments · Commercial Concrete Segment

Consolidation Items · Statement Business Segments

Multiple units reported for the same period; values are kept separate.

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=orn:CommercialConcreteSegmentMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-3094959000 Unit_Standard_USD_tajenR8J-0GcMv5BRTineA2026-10-28 · 20:19:57.000ZOpen filing evidence
2026-01-01 – 2026-09-30292166000 Unit_Standard_USD_tajenR8J-0GcMv5BRTineA2026-10-28 · 20:19:57.000ZOpen filing evidence
2026-04-01 – 2026-06-3091036000 Unit_Standard_USD_bH0p73nz0UmOflp4v1hRwA20260729Open filing evidence
2026-01-01 – 2026-06-30197208000 Unit_Standard_USD_bH0p73nz0UmOflp4v1hRwA20260729Open filing evidence
2026-01-01 – 2026-03-31106172000 Unit_Standard_USD_oHq9OWCFz0ur8YzgsReKBw20260429Open filing evidence
2025-01-01 – 2025-12-31307429000 Unit_Standard_USD_uafWKwUNWk2zqW6XbnGTPg20260304Open filing evidence
2025-07-01 – 2025-09-3082154000 Unit_Standard_USD_tajenR8J-0GcMv5BRTineA2026-10-28 · 20:19:57.000ZOpen filing evidence
2025-07-01 – 2025-09-3082154000 Unit_Standard_USD_xqNZyXcAlU-1UaDtQ473eg20251029Open filing evidence
2025-01-01 – 2025-09-30213628000 Unit_Standard_USD_tajenR8J-0GcMv5BRTineA2026-10-28 · 20:19:57.000ZOpen filing evidence
2025-01-01 – 2025-09-30213628000 Unit_Standard_USD_xqNZyXcAlU-1UaDtQ473eg20251029Open filing evidence
2025-04-01 – 2025-06-3069984000 Unit_Standard_USD_bH0p73nz0UmOflp4v1hRwA20260729Open filing evidence
2025-01-01 – 2025-06-30131474000 Unit_Standard_USD_bH0p73nz0UmOflp4v1hRwA20260729Open filing evidence
2025-01-01 – 2025-03-3161490000 Unit_Standard_USD_oHq9OWCFz0ur8YzgsReKBw20260429Open filing evidence
2024-01-01 – 2024-12-31275144000 Unit_Standard_USD_uafWKwUNWk2zqW6XbnGTPg20260304Open filing evidence
2024-07-01 – 2024-09-3086662000 Unit_Standard_USD_xqNZyXcAlU-1UaDtQ473eg20251029Open filing evidence
2024-07-01 – 2024-09-3086662000 Unit_Standard_USD_znDpFkUzP0WUtzbCBIfecQ20241031Open filing evidence
2024-01-01 – 2024-09-30202223000 Unit_Standard_USD_xqNZyXcAlU-1UaDtQ473eg20251029Open filing evidence
2024-01-01 – 2024-09-30202223000 Unit_Standard_USD_znDpFkUzP0WUtzbCBIfecQ20241031Open filing evidence
2024-04-01 – 2024-06-3061214000 Unit_Standard_USD_AXV3VmLuWU6x7FZykVsGjQ20240726Open filing evidence
2024-01-01 – 2024-06-30115561000 Unit_Standard_USD_AXV3VmLuWU6x7FZykVsGjQ20240726Open filing evidence
2024-01-01 – 2024-03-3154347000 Unit_Standard_USD_-MwTFjGuqkqtJOYPf4TTuw20240426Open filing evidence
2023-01-01 – 2023-12-31315861000 Unit_Standard_USD_-oMArjitz0Oa0DvH4sA-1w20240301Open filing evidence
2023-01-01 – 2023-12-31315861000 Unit_Standard_USD_uafWKwUNWk2zqW6XbnGTPg20260304Open filing evidence
2023-07-01 – 2023-09-3087563000 Unit_Standard_USD_HmfeG0MKnkuh4nOpmvtQ0w20231027Open filing evidence
2023-07-01 – 2023-09-3087563000 Unit_Standard_USD_znDpFkUzP0WUtzbCBIfecQ20241031Open filing evidence
2023-01-01 – 2023-09-30249430000 Unit_Standard_USD_HmfeG0MKnkuh4nOpmvtQ0w20231027Open filing evidence
2023-01-01 – 2023-09-30249430000 Unit_Standard_USD_znDpFkUzP0WUtzbCBIfecQ20241031Open filing evidence
2023-04-01 – 2023-06-3081991000 Unit_Standard_USD_AXV3VmLuWU6x7FZykVsGjQ20240726Open filing evidence
2023-04-01 – 2023-06-3081991000 Unit_Standard_USD_cGOEXEP1tEmnkLfI-jLj2A20230728Open filing evidence
2023-01-01 – 2023-06-30161867000 Unit_Standard_USD_AXV3VmLuWU6x7FZykVsGjQ20240726Open filing evidence
2023-01-01 – 2023-06-30161867000 Unit_Standard_USD_cGOEXEP1tEmnkLfI-jLj2A20230728Open filing evidence
2023-01-01 – 2023-03-3179876000 Unit_Standard_USD_-MwTFjGuqkqtJOYPf4TTuw20240426Open filing evidence
2023-01-01 – 2023-03-3179876000 Unit_Standard_USD_U3PlHp3sRk-TkQEmMwdz8w20230515Open filing evidence
2022-01-01 – 2022-12-31409109000 Unit_Standard_USD_-oMArjitz0Oa0DvH4sA-1w20240301Open filing evidence
2022-01-01 – 2022-12-31409109000 Unit_Standard_USD_yjsFo-yBEEG_VOgwEqkReg20230316Open filing evidence
2022-07-01 – 2022-09-30106523000 Unit_Standard_USD_HmfeG0MKnkuh4nOpmvtQ0w20231027Open filing evidence
2022-07-01 – 2022-09-30106523000 Unit_Standard_USD_l1b-JrVMXUa6Q3o2jSxtoQ20221028Open filing evidence
2022-01-01 – 2022-09-30309230000 Unit_Standard_USD_HmfeG0MKnkuh4nOpmvtQ0w20231027Open filing evidence
2022-01-01 – 2022-09-30309230000 Unit_Standard_USD_l1b-JrVMXUa6Q3o2jSxtoQ20221028Open filing evidence
2022-04-01 – 2022-06-30112256000 Unit_Standard_USD_cGOEXEP1tEmnkLfI-jLj2A20230728Open filing evidence
2022-04-01 – 2022-06-30112256000 Unit_Standard_USD_XvSRE7OvOkKej0GcsJ-1Yg20220729Open filing evidence
2022-01-01 – 2022-06-30202707000 Unit_Standard_USD_cGOEXEP1tEmnkLfI-jLj2A20230728Open filing evidence
2022-01-01 – 2022-06-30202707000 Unit_Standard_USD_XvSRE7OvOkKej0GcsJ-1Yg20220729Open filing evidence
2022-01-01 – 2022-03-3190451000 Unit_Standard_USD_U3PlHp3sRk-TkQEmMwdz8w20230515Open filing evidence
2022-01-01 – 2022-03-3190451000 Unit_Standard_USD_zBy5_-MfkkS9nMztC2HLDA20220429Open filing evidence
2021-01-01 – 2021-12-31337445000 Unit_Standard_USD_-oMArjitz0Oa0DvH4sA-1w20240301Open filing evidence
2021-01-01 – 2021-12-31337445000 Unit_Standard_USD_bNGE1KHhXkKFhQUGZKyJBA20220307Open filing evidence
2021-01-01 – 2021-12-31337445000 Unit_Standard_USD_yjsFo-yBEEG_VOgwEqkReg20230316Open filing evidence
2021-07-01 – 2021-09-3085168000 Unit_Standard_USD_gm9YYzNnSES7xq4ltOcWgg20211029Open filing evidence
2021-07-01 – 2021-09-3085168000 Unit_Standard_USD_l1b-JrVMXUa6Q3o2jSxtoQ20221028Open filing evidence
2021-01-01 – 2021-09-30248264000 Unit_Standard_USD_gm9YYzNnSES7xq4ltOcWgg20211029Open filing evidence
2021-01-01 – 2021-09-30248264000 Unit_Standard_USD_l1b-JrVMXUa6Q3o2jSxtoQ20221028Open filing evidence
2021-04-01 – 2021-06-3081933000 Unit_Standard_USD_cycJFKqZpkyW8t3__uxtdA20210730Open filing evidence
2021-04-01 – 2021-06-3081933000 Unit_Standard_USD_XvSRE7OvOkKej0GcsJ-1Yg20220729Open filing evidence
2021-01-01 – 2021-06-30163096000 Unit_Standard_USD_cycJFKqZpkyW8t3__uxtdA20210730Open filing evidence
2021-01-01 – 2021-06-30163096000 Unit_Standard_USD_XvSRE7OvOkKej0GcsJ-1Yg20220729Open filing evidence
2021-01-01 – 2021-03-3181163000 Unit_Standard_USD_FQ6cWwyD_kyg1dvEDXja-A20210430Open filing evidence
2021-01-01 – 2021-03-3181163000 Unit_Standard_USD_zBy5_-MfkkS9nMztC2HLDA20220429Open filing evidence
2020-01-01 – 2020-12-31321769000 Unit_Standard_USD_b1RP-tLdj0e1ue0xRxDbNA20210302Open filing evidence
2020-01-01 – 2020-12-31321769000 Unit_Standard_USD_bNGE1KHhXkKFhQUGZKyJBA20220307Open filing evidence
2020-01-01 – 2020-12-31321769000 Unit_Standard_USD_yjsFo-yBEEG_VOgwEqkReg20230316Open filing evidence
2020-07-01 – 2020-09-3076552000 Unit_Standard_USD_gm9YYzNnSES7xq4ltOcWgg20211029Open filing evidence
2020-01-01 – 2020-09-30249217000 Unit_Standard_USD_gm9YYzNnSES7xq4ltOcWgg20211029Open filing evidence

Operating Segments · Heavy Civil Marine Construction Segment

Consolidation Items · Statement Business Segments

Multiple units reported for the same period; values are kept separate.

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=orn:HeavyCivilMarineConstructionSegmentMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-30161193000 Unit_Standard_USD_tajenR8J-0GcMv5BRTineA2026-10-28 · 20:19:57.000ZOpen filing evidence
2026-01-01 – 2026-09-30402165000 Unit_Standard_USD_tajenR8J-0GcMv5BRTineA2026-10-28 · 20:19:57.000ZOpen filing evidence
2026-04-01 – 2026-06-30130842000 Unit_Standard_USD_bH0p73nz0UmOflp4v1hRwA20260729Open filing evidence
2026-01-01 – 2026-06-30240971000 Unit_Standard_USD_bH0p73nz0UmOflp4v1hRwA20260729Open filing evidence
2026-01-01 – 2026-03-31110129000 Unit_Standard_USD_oHq9OWCFz0ur8YzgsReKBw20260429Open filing evidence
2025-01-01 – 2025-12-31544831000 Unit_Standard_USD_uafWKwUNWk2zqW6XbnGTPg20260304Open filing evidence
2025-07-01 – 2025-09-30142943000 Unit_Standard_USD_tajenR8J-0GcMv5BRTineA2026-10-28 · 20:19:57.000ZOpen filing evidence
2025-07-01 – 2025-09-30142943000 Unit_Standard_USD_xqNZyXcAlU-1UaDtQ473eg20251029Open filing evidence
2025-01-01 – 2025-09-30405409000 Unit_Standard_USD_tajenR8J-0GcMv5BRTineA2026-10-28 · 20:19:57.000ZOpen filing evidence
2025-01-01 – 2025-09-30405409000 Unit_Standard_USD_xqNZyXcAlU-1UaDtQ473eg20251029Open filing evidence
2025-04-01 – 2025-06-30135302000 Unit_Standard_USD_bH0p73nz0UmOflp4v1hRwA20260729Open filing evidence
2025-01-01 – 2025-06-30262465000 Unit_Standard_USD_bH0p73nz0UmOflp4v1hRwA20260729Open filing evidence
2025-01-01 – 2025-03-31127163000 Unit_Standard_USD_oHq9OWCFz0ur8YzgsReKBw20260429Open filing evidence
2024-01-01 – 2024-12-31521250000 Unit_Standard_USD_uafWKwUNWk2zqW6XbnGTPg20260304Open filing evidence
2024-07-01 – 2024-09-30140013000 Unit_Standard_USD_xqNZyXcAlU-1UaDtQ473eg20251029Open filing evidence
2024-07-01 – 2024-09-30140013000 Unit_Standard_USD_znDpFkUzP0WUtzbCBIfecQ20241031Open filing evidence
2024-01-01 – 2024-09-30377291000 Unit_Standard_USD_xqNZyXcAlU-1UaDtQ473eg20251029Open filing evidence
2024-01-01 – 2024-09-30377291000 Unit_Standard_USD_znDpFkUzP0WUtzbCBIfecQ20241031Open filing evidence
2024-04-01 – 2024-06-30130953000 Unit_Standard_USD_AXV3VmLuWU6x7FZykVsGjQ20240726Open filing evidence
2024-01-01 – 2024-06-30237278000 Unit_Standard_USD_AXV3VmLuWU6x7FZykVsGjQ20240726Open filing evidence
2024-01-01 – 2024-03-31106325000 Unit_Standard_USD_-MwTFjGuqkqtJOYPf4TTuw20240426Open filing evidence
2023-01-01 – 2023-12-31395917000 Unit_Standard_USD_-oMArjitz0Oa0DvH4sA-1w20240301Open filing evidence
2023-01-01 – 2023-12-31395917000 Unit_Standard_USD_uafWKwUNWk2zqW6XbnGTPg20260304Open filing evidence
2023-07-01 – 2023-09-3080913000 Unit_Standard_USD_HmfeG0MKnkuh4nOpmvtQ0w20231027Open filing evidence
2023-07-01 – 2023-09-3080913000 Unit_Standard_USD_znDpFkUzP0WUtzbCBIfecQ20241031Open filing evidence
2023-01-01 – 2023-09-30260754000 Unit_Standard_USD_HmfeG0MKnkuh4nOpmvtQ0w20231027Open filing evidence
2023-01-01 – 2023-09-30260754000 Unit_Standard_USD_znDpFkUzP0WUtzbCBIfecQ20241031Open filing evidence
2023-04-01 – 2023-06-30100543000 Unit_Standard_USD_AXV3VmLuWU6x7FZykVsGjQ20240726Open filing evidence
2023-04-01 – 2023-06-30100543000 Unit_Standard_USD_cGOEXEP1tEmnkLfI-jLj2A20230728Open filing evidence
2023-01-01 – 2023-06-30179841000 Unit_Standard_USD_AXV3VmLuWU6x7FZykVsGjQ20240726Open filing evidence
2023-01-01 – 2023-06-30179841000 Unit_Standard_USD_cGOEXEP1tEmnkLfI-jLj2A20230728Open filing evidence
2023-01-01 – 2023-03-3179298000 Unit_Standard_USD_-MwTFjGuqkqtJOYPf4TTuw20240426Open filing evidence
2023-01-01 – 2023-03-3179298000 Unit_Standard_USD_U3PlHp3sRk-TkQEmMwdz8w20230515Open filing evidence
2022-01-01 – 2022-12-31339213000 Unit_Standard_USD_-oMArjitz0Oa0DvH4sA-1w20240301Open filing evidence
2022-01-01 – 2022-12-31339213000 Unit_Standard_USD_yjsFo-yBEEG_VOgwEqkReg20230316Open filing evidence
2022-07-01 – 2022-09-3076098000 Unit_Standard_USD_HmfeG0MKnkuh4nOpmvtQ0w20231027Open filing evidence
2022-07-01 – 2022-09-3076098000 Unit_Standard_USD_l1b-JrVMXUa6Q3o2jSxtoQ20221028Open filing evidence
2022-01-01 – 2022-09-30242897000 Unit_Standard_USD_HmfeG0MKnkuh4nOpmvtQ0w20231027Open filing evidence
2022-01-01 – 2022-09-30242897000 Unit_Standard_USD_l1b-JrVMXUa6Q3o2jSxtoQ20221028Open filing evidence
2022-04-01 – 2022-06-3082319000 Unit_Standard_USD_cGOEXEP1tEmnkLfI-jLj2A20230728Open filing evidence
2022-04-01 – 2022-06-3082319000 Unit_Standard_USD_XvSRE7OvOkKej0GcsJ-1Yg20220729Open filing evidence
2022-01-01 – 2022-06-30166799000 Unit_Standard_USD_cGOEXEP1tEmnkLfI-jLj2A20230728Open filing evidence
2022-01-01 – 2022-06-30166799000 Unit_Standard_USD_XvSRE7OvOkKej0GcsJ-1Yg20220729Open filing evidence
2022-01-01 – 2022-03-3184480000 Unit_Standard_USD_U3PlHp3sRk-TkQEmMwdz8w20230515Open filing evidence
2022-01-01 – 2022-03-3184480000 Unit_Standard_USD_zBy5_-MfkkS9nMztC2HLDA20220429Open filing evidence
2021-01-01 – 2021-12-31263915000 Unit_Standard_USD_-oMArjitz0Oa0DvH4sA-1w20240301Open filing evidence
2021-01-01 – 2021-12-31263915000 Unit_Standard_USD_bNGE1KHhXkKFhQUGZKyJBA20220307Open filing evidence
2021-01-01 – 2021-12-31263915000 Unit_Standard_USD_yjsFo-yBEEG_VOgwEqkReg20230316Open filing evidence
2021-07-01 – 2021-09-3054739000 Unit_Standard_USD_l1b-JrVMXUa6Q3o2jSxtoQ20221028Open filing evidence
2021-01-01 – 2021-09-30190827000 Unit_Standard_USD_l1b-JrVMXUa6Q3o2jSxtoQ20221028Open filing evidence
2021-04-01 – 2021-06-3063942000 Unit_Standard_USD_XvSRE7OvOkKej0GcsJ-1Yg20220729Open filing evidence
2021-01-01 – 2021-06-30136088000 Unit_Standard_USD_XvSRE7OvOkKej0GcsJ-1Yg20220729Open filing evidence
2021-01-01 – 2021-03-3172146000 Unit_Standard_USD_FQ6cWwyD_kyg1dvEDXja-A20210430Open filing evidence
2021-01-01 – 2021-03-3172146000 Unit_Standard_USD_zBy5_-MfkkS9nMztC2HLDA20220429Open filing evidence
2020-01-01 – 2020-12-31388173000 Unit_Standard_USD_b1RP-tLdj0e1ue0xRxDbNA20210302Open filing evidence
2020-01-01 – 2020-12-31388173000 Unit_Standard_USD_bNGE1KHhXkKFhQUGZKyJBA20220307Open filing evidence
2020-01-01 – 2020-12-31388173000 Unit_Standard_USD_yjsFo-yBEEG_VOgwEqkReg20230316Open filing evidence

Dredging · Heavy Civil Marine Construction Segment

Product Or Service · Statement Business Segments

Multiple units reported for the same period; values are kept separate.

Source dimensions srt:ProductOrServiceAxis=orn:DredgingMember;us-gaap:StatementBusinessSegmentsAxis=orn:HeavyCivilMarineConstructionSegmentMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-3029308000 Unit_Standard_USD_tajenR8J-0GcMv5BRTineA2026-10-28 · 20:19:57.000ZOpen filing evidence
2026-01-01 – 2026-09-3060019000 Unit_Standard_USD_tajenR8J-0GcMv5BRTineA2026-10-28 · 20:19:57.000ZOpen filing evidence
2026-04-01 – 2026-06-3016630000 Unit_Standard_USD_bH0p73nz0UmOflp4v1hRwA20260729Open filing evidence
2026-01-01 – 2026-06-3030711000 Unit_Standard_USD_bH0p73nz0UmOflp4v1hRwA20260729Open filing evidence
2026-01-01 – 2026-03-3114081000 Unit_Standard_USD_oHq9OWCFz0ur8YzgsReKBw20260429Open filing evidence
2025-01-01 – 2025-12-3176429000 Unit_Standard_USD_uafWKwUNWk2zqW6XbnGTPg20260304Open filing evidence
2025-07-01 – 2025-09-3023761000 Unit_Standard_USD_tajenR8J-0GcMv5BRTineA2026-10-28 · 20:19:57.000ZOpen filing evidence
2025-07-01 – 2025-09-3023761000 Unit_Standard_USD_xqNZyXcAlU-1UaDtQ473eg20251029Open filing evidence
2025-01-01 – 2025-09-3058372000 Unit_Standard_USD_tajenR8J-0GcMv5BRTineA2026-10-28 · 20:19:57.000ZOpen filing evidence
2025-01-01 – 2025-09-3058372000 Unit_Standard_USD_xqNZyXcAlU-1UaDtQ473eg20251029Open filing evidence
2025-04-01 – 2025-06-3017700000 Unit_Standard_USD_9z7i4jL4FkC6TNhNJhp2Mg20250730Open filing evidence
2025-04-01 – 2025-06-3017700000 Unit_Standard_USD_bH0p73nz0UmOflp4v1hRwA20260729Open filing evidence
2025-01-01 – 2025-06-3034611000 Unit_Standard_USD_9z7i4jL4FkC6TNhNJhp2Mg20250730Open filing evidence
2025-01-01 – 2025-06-3034611000 Unit_Standard_USD_bH0p73nz0UmOflp4v1hRwA20260729Open filing evidence
2025-01-01 – 2025-03-3116911000 Unit_Standard_USD_hcF5dfz1SEi_UMrGWeXkPg20250430Open filing evidence
2025-01-01 – 2025-03-3116911000 Unit_Standard_USD_oHq9OWCFz0ur8YzgsReKBw20260429Open filing evidence
2024-01-01 – 2024-12-3157048000 Unit_Standard_USD_f_4I3G8X802NUhn0DKsWog20250306Open filing evidence
2024-01-01 – 2024-12-3157048000 Unit_Standard_USD_uafWKwUNWk2zqW6XbnGTPg20260304Open filing evidence
2024-07-01 – 2024-09-3012902000 Unit_Standard_USD_xqNZyXcAlU-1UaDtQ473eg20251029Open filing evidence
2024-07-01 – 2024-09-3012902000 Unit_Standard_USD_znDpFkUzP0WUtzbCBIfecQ20241031Open filing evidence
2024-01-01 – 2024-09-3039649000 Unit_Standard_USD_xqNZyXcAlU-1UaDtQ473eg20251029Open filing evidence
2024-01-01 – 2024-09-3039649000 Unit_Standard_USD_znDpFkUzP0WUtzbCBIfecQ20241031Open filing evidence
2024-04-01 – 2024-06-3012077000 Unit_Standard_USD_9z7i4jL4FkC6TNhNJhp2Mg20250730Open filing evidence
2024-04-01 – 2024-06-3012077000 Unit_Standard_USD_AXV3VmLuWU6x7FZykVsGjQ20240726Open filing evidence
2024-01-01 – 2024-06-3026747000 Unit_Standard_USD_9z7i4jL4FkC6TNhNJhp2Mg20250730Open filing evidence
2024-01-01 – 2024-06-3026747000 Unit_Standard_USD_AXV3VmLuWU6x7FZykVsGjQ20240726Open filing evidence
2024-01-01 – 2024-03-3114670000 Unit_Standard_USD_-MwTFjGuqkqtJOYPf4TTuw20240426Open filing evidence
2024-01-01 – 2024-03-3114670000 Unit_Standard_USD_hcF5dfz1SEi_UMrGWeXkPg20250430Open filing evidence
2023-01-01 – 2023-12-3160667000 Unit_Standard_USD_-oMArjitz0Oa0DvH4sA-1w20240301Open filing evidence
2023-01-01 – 2023-12-3160667000 Unit_Standard_USD_f_4I3G8X802NUhn0DKsWog20250306Open filing evidence
2023-01-01 – 2023-12-3160667000 Unit_Standard_USD_uafWKwUNWk2zqW6XbnGTPg20260304Open filing evidence
2023-07-01 – 2023-09-309444000 Unit_Standard_USD_HmfeG0MKnkuh4nOpmvtQ0w20231027Open filing evidence
2023-07-01 – 2023-09-309444000 Unit_Standard_USD_znDpFkUzP0WUtzbCBIfecQ20241031Open filing evidence
2023-01-01 – 2023-09-3044993000 Unit_Standard_USD_HmfeG0MKnkuh4nOpmvtQ0w20231027Open filing evidence
2023-01-01 – 2023-09-3044993000 Unit_Standard_USD_znDpFkUzP0WUtzbCBIfecQ20241031Open filing evidence
2023-04-01 – 2023-06-3014819000 Unit_Standard_USD_AXV3VmLuWU6x7FZykVsGjQ20240726Open filing evidence
2023-04-01 – 2023-06-3014819000 Unit_Standard_USD_cGOEXEP1tEmnkLfI-jLj2A20230728Open filing evidence
2023-01-01 – 2023-06-3035549000 Unit_Standard_USD_AXV3VmLuWU6x7FZykVsGjQ20240726Open filing evidence
2023-01-01 – 2023-06-3035549000 Unit_Standard_USD_cGOEXEP1tEmnkLfI-jLj2A20230728Open filing evidence
2023-01-01 – 2023-03-3120730000 Unit_Standard_USD_-MwTFjGuqkqtJOYPf4TTuw20240426Open filing evidence
2023-01-01 – 2023-03-3120730000 Unit_Standard_USD_U3PlHp3sRk-TkQEmMwdz8w20230515Open filing evidence
2022-01-01 – 2022-12-3185414000 Unit_Standard_USD_-oMArjitz0Oa0DvH4sA-1w20240301Open filing evidence
2022-01-01 – 2022-12-3185414000 Unit_Standard_USD_f_4I3G8X802NUhn0DKsWog20250306Open filing evidence
2022-01-01 – 2022-12-3185414000 Unit_Standard_USD_yjsFo-yBEEG_VOgwEqkReg20230316Open filing evidence
2022-07-01 – 2022-09-3017408000 Unit_Standard_USD_HmfeG0MKnkuh4nOpmvtQ0w20231027Open filing evidence
2022-07-01 – 2022-09-3017408000 Unit_Standard_USD_l1b-JrVMXUa6Q3o2jSxtoQ20221028Open filing evidence
2022-01-01 – 2022-09-3063894000 Unit_Standard_USD_HmfeG0MKnkuh4nOpmvtQ0w20231027Open filing evidence
2022-01-01 – 2022-09-3063894000 Unit_Standard_USD_l1b-JrVMXUa6Q3o2jSxtoQ20221028Open filing evidence
2022-04-01 – 2022-06-3024320000 Unit_Standard_USD_cGOEXEP1tEmnkLfI-jLj2A20230728Open filing evidence
2022-04-01 – 2022-06-3024320000 Unit_Standard_USD_XvSRE7OvOkKej0GcsJ-1Yg20220729Open filing evidence
2022-01-01 – 2022-06-3046486000 Unit_Standard_USD_cGOEXEP1tEmnkLfI-jLj2A20230728Open filing evidence
2022-01-01 – 2022-06-3046486000 Unit_Standard_USD_XvSRE7OvOkKej0GcsJ-1Yg20220729Open filing evidence
2022-01-01 – 2022-03-3122166000 Unit_Standard_USD_U3PlHp3sRk-TkQEmMwdz8w20230515Open filing evidence
2022-01-01 – 2022-03-3122166000 Unit_Standard_USD_zBy5_-MfkkS9nMztC2HLDA20220429Open filing evidence
2021-01-01 – 2021-12-3180831000 Unit_Standard_USD_-oMArjitz0Oa0DvH4sA-1w20240301Open filing evidence
2021-01-01 – 2021-12-3180831000 Unit_Standard_USD_bNGE1KHhXkKFhQUGZKyJBA20220307Open filing evidence
2021-01-01 – 2021-12-3180831000 Unit_Standard_USD_yjsFo-yBEEG_VOgwEqkReg20230316Open filing evidence
2021-07-01 – 2021-09-3013157000 Unit_Standard_USD_gm9YYzNnSES7xq4ltOcWgg20211029Open filing evidence
2021-07-01 – 2021-09-3013157000 Unit_Standard_USD_l1b-JrVMXUa6Q3o2jSxtoQ20221028Open filing evidence
2021-01-01 – 2021-09-3058511000 Unit_Standard_USD_gm9YYzNnSES7xq4ltOcWgg20211029Open filing evidence
2021-01-01 – 2021-09-3058511000 Unit_Standard_USD_l1b-JrVMXUa6Q3o2jSxtoQ20221028Open filing evidence
2021-04-01 – 2021-06-3020672000 Unit_Standard_USD_cycJFKqZpkyW8t3__uxtdA20210730Open filing evidence
2021-04-01 – 2021-06-3020672000 Unit_Standard_USD_XvSRE7OvOkKej0GcsJ-1Yg20220729Open filing evidence
2021-01-01 – 2021-06-3045354000 Unit_Standard_USD_cycJFKqZpkyW8t3__uxtdA20210730Open filing evidence
2021-01-01 – 2021-06-3045354000 Unit_Standard_USD_XvSRE7OvOkKej0GcsJ-1Yg20220729Open filing evidence
2021-01-01 – 2021-03-3124682000 Unit_Standard_USD_FQ6cWwyD_kyg1dvEDXja-A20210430Open filing evidence
2021-01-01 – 2021-03-3124682000 Unit_Standard_USD_zBy5_-MfkkS9nMztC2HLDA20220429Open filing evidence
2020-01-01 – 2020-12-31106647000 Unit_Standard_USD_b1RP-tLdj0e1ue0xRxDbNA20210302Open filing evidence
2020-01-01 – 2020-12-31106647000 Unit_Standard_USD_bNGE1KHhXkKFhQUGZKyJBA20220307Open filing evidence
2020-01-01 – 2020-12-31106647000 Unit_Standard_USD_yjsFo-yBEEG_VOgwEqkReg20230316Open filing evidence
2020-07-01 – 2020-09-3024262000 Unit_Standard_USD_gm9YYzNnSES7xq4ltOcWgg20211029Open filing evidence
2020-01-01 – 2020-09-3079391000 Unit_Standard_USD_gm9YYzNnSES7xq4ltOcWgg20211029Open filing evidence

Light Commercial · Commercial Concrete Segment

Product Or Service · Statement Business Segments

Multiple units reported for the same period; values are kept separate.

Source dimensions srt:ProductOrServiceAxis=orn:LightCommercialMember;us-gaap:StatementBusinessSegmentsAxis=orn:CommercialConcreteSegmentMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-3088308000 Unit_Standard_USD_tajenR8J-0GcMv5BRTineA2026-10-28 · 20:19:57.000ZOpen filing evidence
2026-01-01 – 2026-09-30269089000 Unit_Standard_USD_tajenR8J-0GcMv5BRTineA2026-10-28 · 20:19:57.000ZOpen filing evidence
2026-04-01 – 2026-06-3084362000 Unit_Standard_USD_bH0p73nz0UmOflp4v1hRwA20260729Open filing evidence
2026-01-01 – 2026-06-30180781000 Unit_Standard_USD_bH0p73nz0UmOflp4v1hRwA20260729Open filing evidence
2026-01-01 – 2026-03-3196419000 Unit_Standard_USD_oHq9OWCFz0ur8YzgsReKBw20260429Open filing evidence
2025-01-01 – 2025-12-31261610000 Unit_Standard_USD_uafWKwUNWk2zqW6XbnGTPg20260304Open filing evidence
2025-07-01 – 2025-09-3070672000 Unit_Standard_USD_tajenR8J-0GcMv5BRTineA2026-10-28 · 20:19:57.000ZOpen filing evidence
2025-07-01 – 2025-09-3070672000 Unit_Standard_USD_xqNZyXcAlU-1UaDtQ473eg20251029Open filing evidence
2025-01-01 – 2025-09-30175843000 Unit_Standard_USD_tajenR8J-0GcMv5BRTineA2026-10-28 · 20:19:57.000ZOpen filing evidence
2025-01-01 – 2025-09-30175843000 Unit_Standard_USD_xqNZyXcAlU-1UaDtQ473eg20251029Open filing evidence
2025-04-01 – 2025-06-3057402000 Unit_Standard_USD_9z7i4jL4FkC6TNhNJhp2Mg20250730Open filing evidence
2025-04-01 – 2025-06-3057402000 Unit_Standard_USD_bH0p73nz0UmOflp4v1hRwA20260729Open filing evidence
2025-01-01 – 2025-06-30105171000 Unit_Standard_USD_9z7i4jL4FkC6TNhNJhp2Mg20250730Open filing evidence
2025-01-01 – 2025-06-30105171000 Unit_Standard_USD_bH0p73nz0UmOflp4v1hRwA20260729Open filing evidence
2025-01-01 – 2025-03-3147769000 Unit_Standard_USD_hcF5dfz1SEi_UMrGWeXkPg20250430Open filing evidence
2025-01-01 – 2025-03-3147769000 Unit_Standard_USD_oHq9OWCFz0ur8YzgsReKBw20260429Open filing evidence
2024-01-01 – 2024-12-31213599000 Unit_Standard_USD_f_4I3G8X802NUhn0DKsWog20250306Open filing evidence
2024-01-01 – 2024-12-31213599000 Unit_Standard_USD_uafWKwUNWk2zqW6XbnGTPg20260304Open filing evidence
2024-07-01 – 2024-09-3071090000 Unit_Standard_USD_xqNZyXcAlU-1UaDtQ473eg20251029Open filing evidence
2024-07-01 – 2024-09-3071090000 Unit_Standard_USD_znDpFkUzP0WUtzbCBIfecQ20241031Open filing evidence
2024-01-01 – 2024-09-30158183000 Unit_Standard_USD_xqNZyXcAlU-1UaDtQ473eg20251029Open filing evidence
2024-01-01 – 2024-09-30158183000 Unit_Standard_USD_znDpFkUzP0WUtzbCBIfecQ20241031Open filing evidence
2024-04-01 – 2024-06-3044319000 Unit_Standard_USD_9z7i4jL4FkC6TNhNJhp2Mg20250730Open filing evidence
2024-04-01 – 2024-06-3044319000 Unit_Standard_USD_AXV3VmLuWU6x7FZykVsGjQ20240726Open filing evidence
2024-01-01 – 2024-06-3087093000 Unit_Standard_USD_9z7i4jL4FkC6TNhNJhp2Mg20250730Open filing evidence
2024-01-01 – 2024-06-3087093000 Unit_Standard_USD_AXV3VmLuWU6x7FZykVsGjQ20240726Open filing evidence
2024-01-01 – 2024-03-3142774000 Unit_Standard_USD_-MwTFjGuqkqtJOYPf4TTuw20240426Open filing evidence
2024-01-01 – 2024-03-3142774000 Unit_Standard_USD_hcF5dfz1SEi_UMrGWeXkPg20250430Open filing evidence
2023-01-01 – 2023-12-31262034000 Unit_Standard_USD_-oMArjitz0Oa0DvH4sA-1w20240301Open filing evidence
2023-01-01 – 2023-12-31262034000 Unit_Standard_USD_f_4I3G8X802NUhn0DKsWog20250306Open filing evidence
2023-01-01 – 2023-12-31262034000 Unit_Standard_USD_uafWKwUNWk2zqW6XbnGTPg20260304Open filing evidence
2023-07-01 – 2023-09-3075295000 Unit_Standard_USD_HmfeG0MKnkuh4nOpmvtQ0w20231027Open filing evidence
2023-07-01 – 2023-09-3075295000 Unit_Standard_USD_znDpFkUzP0WUtzbCBIfecQ20241031Open filing evidence
2023-01-01 – 2023-09-30207581000 Unit_Standard_USD_HmfeG0MKnkuh4nOpmvtQ0w20231027Open filing evidence
2023-01-01 – 2023-09-30207581000 Unit_Standard_USD_znDpFkUzP0WUtzbCBIfecQ20241031Open filing evidence
2023-04-01 – 2023-06-3068154000 Unit_Standard_USD_AXV3VmLuWU6x7FZykVsGjQ20240726Open filing evidence
2023-04-01 – 2023-06-3068154000 Unit_Standard_USD_cGOEXEP1tEmnkLfI-jLj2A20230728Open filing evidence
2023-01-01 – 2023-06-30132286000 Unit_Standard_USD_AXV3VmLuWU6x7FZykVsGjQ20240726Open filing evidence
2023-01-01 – 2023-06-30132286000 Unit_Standard_USD_cGOEXEP1tEmnkLfI-jLj2A20230728Open filing evidence
2023-01-01 – 2023-03-3164132000 Unit_Standard_USD_-MwTFjGuqkqtJOYPf4TTuw20240426Open filing evidence
2023-01-01 – 2023-03-3164132000 Unit_Standard_USD_U3PlHp3sRk-TkQEmMwdz8w20230515Open filing evidence
2022-01-01 – 2022-12-31351684000 Unit_Standard_USD_-oMArjitz0Oa0DvH4sA-1w20240301Open filing evidence
2022-01-01 – 2022-12-31351684000 Unit_Standard_USD_f_4I3G8X802NUhn0DKsWog20250306Open filing evidence
2022-01-01 – 2022-12-31351684000 Unit_Standard_USD_yjsFo-yBEEG_VOgwEqkReg20230316Open filing evidence
2022-07-01 – 2022-09-3091453000 Unit_Standard_USD_HmfeG0MKnkuh4nOpmvtQ0w20231027Open filing evidence
2022-07-01 – 2022-09-3091453000 Unit_Standard_USD_l1b-JrVMXUa6Q3o2jSxtoQ20221028Open filing evidence
2022-01-01 – 2022-09-30262620000 Unit_Standard_USD_HmfeG0MKnkuh4nOpmvtQ0w20231027Open filing evidence
2022-01-01 – 2022-09-30262620000 Unit_Standard_USD_l1b-JrVMXUa6Q3o2jSxtoQ20221028Open filing evidence
2022-04-01 – 2022-06-3094392000 Unit_Standard_USD_cGOEXEP1tEmnkLfI-jLj2A20230728Open filing evidence
2022-04-01 – 2022-06-3094392000 Unit_Standard_USD_XvSRE7OvOkKej0GcsJ-1Yg20220729Open filing evidence
2022-01-01 – 2022-06-30171167000 Unit_Standard_USD_cGOEXEP1tEmnkLfI-jLj2A20230728Open filing evidence
2022-01-01 – 2022-06-30171167000 Unit_Standard_USD_XvSRE7OvOkKej0GcsJ-1Yg20220729Open filing evidence
2022-01-01 – 2022-03-3176775000 Unit_Standard_USD_U3PlHp3sRk-TkQEmMwdz8w20230515Open filing evidence
2022-01-01 – 2022-03-3176775000 Unit_Standard_USD_zBy5_-MfkkS9nMztC2HLDA20220429Open filing evidence
2021-01-01 – 2021-12-31279018000 Unit_Standard_USD_-oMArjitz0Oa0DvH4sA-1w20240301Open filing evidence
2021-01-01 – 2021-12-31279018000 Unit_Standard_USD_bNGE1KHhXkKFhQUGZKyJBA20220307Open filing evidence
2021-01-01 – 2021-12-31279018000 Unit_Standard_USD_yjsFo-yBEEG_VOgwEqkReg20230316Open filing evidence
2021-07-01 – 2021-09-3072078000 Unit_Standard_USD_gm9YYzNnSES7xq4ltOcWgg20211029Open filing evidence
2021-07-01 – 2021-09-3072078000 Unit_Standard_USD_l1b-JrVMXUa6Q3o2jSxtoQ20221028Open filing evidence
2021-01-01 – 2021-09-30200961000 Unit_Standard_USD_gm9YYzNnSES7xq4ltOcWgg20211029Open filing evidence
2021-01-01 – 2021-09-30200961000 Unit_Standard_USD_l1b-JrVMXUa6Q3o2jSxtoQ20221028Open filing evidence
2021-04-01 – 2021-06-3064388000 Unit_Standard_USD_cycJFKqZpkyW8t3__uxtdA20210730Open filing evidence
2021-04-01 – 2021-06-3064388000 Unit_Standard_USD_XvSRE7OvOkKej0GcsJ-1Yg20220729Open filing evidence
2021-01-01 – 2021-06-30128883000 Unit_Standard_USD_cycJFKqZpkyW8t3__uxtdA20210730Open filing evidence
2021-01-01 – 2021-06-30128883000 Unit_Standard_USD_XvSRE7OvOkKej0GcsJ-1Yg20220729Open filing evidence
2021-01-01 – 2021-03-3164495000 Unit_Standard_USD_FQ6cWwyD_kyg1dvEDXja-A20210430Open filing evidence
2021-01-01 – 2021-03-3164495000 Unit_Standard_USD_zBy5_-MfkkS9nMztC2HLDA20220429Open filing evidence
2020-01-01 – 2020-12-31235835000 Unit_Standard_USD_b1RP-tLdj0e1ue0xRxDbNA20210302Open filing evidence
2020-01-01 – 2020-12-31235835000 Unit_Standard_USD_bNGE1KHhXkKFhQUGZKyJBA20220307Open filing evidence
2020-01-01 – 2020-12-31235835000 Unit_Standard_USD_yjsFo-yBEEG_VOgwEqkReg20230316Open filing evidence
2020-07-01 – 2020-09-3055436000 Unit_Standard_USD_gm9YYzNnSES7xq4ltOcWgg20211029Open filing evidence
2020-01-01 – 2020-09-30182311000 Unit_Standard_USD_gm9YYzNnSES7xq4ltOcWgg20211029Open filing evidence

Other Product · Commercial Concrete Segment

Product Or Service · Statement Business Segments

Multiple units reported for the same period; values are kept separate.

Source dimensions srt:ProductOrServiceAxis=orn:OtherProductMember;us-gaap:StatementBusinessSegmentsAxis=orn:CommercialConcreteSegmentMember
PeriodValueUnitFiledEvidence
2021-01-01 – 2021-12-317000 Unit_Standard_USD_-oMArjitz0Oa0DvH4sA-1w20240301Open filing evidence
2021-01-01 – 2021-12-317000 Unit_Standard_USD_bNGE1KHhXkKFhQUGZKyJBA20220307Open filing evidence
2021-01-01 – 2021-12-317000 Unit_Standard_USD_yjsFo-yBEEG_VOgwEqkReg20230316Open filing evidence
2021-01-01 – 2021-09-307000 Unit_Standard_USD_gm9YYzNnSES7xq4ltOcWgg20211029Open filing evidence
2021-01-01 – 2021-09-307000 Unit_Standard_USD_l1b-JrVMXUa6Q3o2jSxtoQ20221028Open filing evidence
2021-01-01 – 2021-06-307000 Unit_Standard_USD_cycJFKqZpkyW8t3__uxtdA20210730Open filing evidence
2021-01-01 – 2021-06-307000 Unit_Standard_USD_XvSRE7OvOkKej0GcsJ-1Yg20220729Open filing evidence
2021-01-01 – 2021-03-317000 Unit_Standard_USD_FQ6cWwyD_kyg1dvEDXja-A20210430Open filing evidence
2021-01-01 – 2021-03-317000 Unit_Standard_USD_zBy5_-MfkkS9nMztC2HLDA20220429Open filing evidence
2020-01-01 – 2020-12-3130000 Unit_Standard_USD_b1RP-tLdj0e1ue0xRxDbNA20210302Open filing evidence
2020-01-01 – 2020-12-3130000 Unit_Standard_USD_bNGE1KHhXkKFhQUGZKyJBA20220307Open filing evidence
2020-01-01 – 2020-12-3130000 Unit_Standard_USD_yjsFo-yBEEG_VOgwEqkReg20230316Open filing evidence
2020-01-01 – 2020-09-3013000 Unit_Standard_USD_gm9YYzNnSES7xq4ltOcWgg20211029Open filing evidence

Specialty Services · Heavy Civil Marine Construction Segment

Product Or Service · Statement Business Segments

Multiple units reported for the same period; values are kept separate.

Source dimensions srt:ProductOrServiceAxis=orn:SpecialtyServicesMember;us-gaap:StatementBusinessSegmentsAxis=orn:HeavyCivilMarineConstructionSegmentMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-303897000 Unit_Standard_USD_tajenR8J-0GcMv5BRTineA2026-10-28 · 20:19:57.000ZOpen filing evidence
2026-01-01 – 2026-09-3011594000 Unit_Standard_USD_tajenR8J-0GcMv5BRTineA2026-10-28 · 20:19:57.000ZOpen filing evidence
2026-04-01 – 2026-06-304332000 Unit_Standard_USD_bH0p73nz0UmOflp4v1hRwA20260729Open filing evidence
2026-01-01 – 2026-06-307697000 Unit_Standard_USD_bH0p73nz0UmOflp4v1hRwA20260729Open filing evidence
2026-01-01 – 2026-03-313365000 Unit_Standard_USD_oHq9OWCFz0ur8YzgsReKBw20260429Open filing evidence
2025-01-01 – 2025-12-3115232000 Unit_Standard_USD_uafWKwUNWk2zqW6XbnGTPg20260304Open filing evidence
2025-07-01 – 2025-09-302367000 Unit_Standard_USD_tajenR8J-0GcMv5BRTineA2026-10-28 · 20:19:57.000ZOpen filing evidence
2025-07-01 – 2025-09-302367000 Unit_Standard_USD_xqNZyXcAlU-1UaDtQ473eg20251029Open filing evidence
2025-01-01 – 2025-09-3010909000 Unit_Standard_USD_tajenR8J-0GcMv5BRTineA2026-10-28 · 20:19:57.000ZOpen filing evidence
2025-01-01 – 2025-09-3010909000 Unit_Standard_USD_xqNZyXcAlU-1UaDtQ473eg20251029Open filing evidence
2025-04-01 – 2025-06-302772000 Unit_Standard_USD_9z7i4jL4FkC6TNhNJhp2Mg20250730Open filing evidence
2025-04-01 – 2025-06-302772000 Unit_Standard_USD_bH0p73nz0UmOflp4v1hRwA20260729Open filing evidence
2025-01-01 – 2025-06-308542000 Unit_Standard_USD_9z7i4jL4FkC6TNhNJhp2Mg20250730Open filing evidence
2025-01-01 – 2025-06-308542000 Unit_Standard_USD_bH0p73nz0UmOflp4v1hRwA20260729Open filing evidence
2025-01-01 – 2025-03-315770000 Unit_Standard_USD_hcF5dfz1SEi_UMrGWeXkPg20250430Open filing evidence
2025-01-01 – 2025-03-315770000 Unit_Standard_USD_oHq9OWCFz0ur8YzgsReKBw20260429Open filing evidence
2024-01-01 – 2024-12-3115881000 Unit_Standard_USD_f_4I3G8X802NUhn0DKsWog20250306Open filing evidence
2024-01-01 – 2024-12-3115881000 Unit_Standard_USD_uafWKwUNWk2zqW6XbnGTPg20260304Open filing evidence
2024-07-01 – 2024-09-303970000 Unit_Standard_USD_xqNZyXcAlU-1UaDtQ473eg20251029Open filing evidence
2024-07-01 – 2024-09-303970000 Unit_Standard_USD_znDpFkUzP0WUtzbCBIfecQ20241031Open filing evidence
2024-01-01 – 2024-09-309687000 Unit_Standard_USD_xqNZyXcAlU-1UaDtQ473eg20251029Open filing evidence
2024-01-01 – 2024-09-309687000 Unit_Standard_USD_znDpFkUzP0WUtzbCBIfecQ20241031Open filing evidence
2024-04-01 – 2024-06-302851000 Unit_Standard_USD_9z7i4jL4FkC6TNhNJhp2Mg20250730Open filing evidence
2024-04-01 – 2024-06-302851000 Unit_Standard_USD_AXV3VmLuWU6x7FZykVsGjQ20240726Open filing evidence
2024-01-01 – 2024-06-305717000 Unit_Standard_USD_9z7i4jL4FkC6TNhNJhp2Mg20250730Open filing evidence
2024-01-01 – 2024-06-305717000 Unit_Standard_USD_AXV3VmLuWU6x7FZykVsGjQ20240726Open filing evidence
2024-01-01 – 2024-03-312866000 Unit_Standard_USD_-MwTFjGuqkqtJOYPf4TTuw20240426Open filing evidence
2024-01-01 – 2024-03-312866000 Unit_Standard_USD_hcF5dfz1SEi_UMrGWeXkPg20250430Open filing evidence
2023-01-01 – 2023-12-3137788000 Unit_Standard_USD_-oMArjitz0Oa0DvH4sA-1w20240301Open filing evidence
2023-01-01 – 2023-12-3137788000 Unit_Standard_USD_f_4I3G8X802NUhn0DKsWog20250306Open filing evidence
2023-01-01 – 2023-12-3137788000 Unit_Standard_USD_uafWKwUNWk2zqW6XbnGTPg20260304Open filing evidence
2023-07-01 – 2023-09-3013307000 Unit_Standard_USD_HmfeG0MKnkuh4nOpmvtQ0w20231027Open filing evidence
2023-07-01 – 2023-09-3013307000 Unit_Standard_USD_znDpFkUzP0WUtzbCBIfecQ20241031Open filing evidence
2023-01-01 – 2023-09-3025866000 Unit_Standard_USD_HmfeG0MKnkuh4nOpmvtQ0w20231027Open filing evidence
2023-01-01 – 2023-09-3025866000 Unit_Standard_USD_znDpFkUzP0WUtzbCBIfecQ20241031Open filing evidence
2023-04-01 – 2023-06-308003000 Unit_Standard_USD_AXV3VmLuWU6x7FZykVsGjQ20240726Open filing evidence
2023-04-01 – 2023-06-308003000 Unit_Standard_USD_cGOEXEP1tEmnkLfI-jLj2A20230728Open filing evidence
2023-01-01 – 2023-06-3012559000 Unit_Standard_USD_AXV3VmLuWU6x7FZykVsGjQ20240726Open filing evidence
2023-01-01 – 2023-06-3012559000 Unit_Standard_USD_cGOEXEP1tEmnkLfI-jLj2A20230728Open filing evidence
2023-01-01 – 2023-03-314556000 Unit_Standard_USD_-MwTFjGuqkqtJOYPf4TTuw20240426Open filing evidence
2023-01-01 – 2023-03-314556000 Unit_Standard_USD_U3PlHp3sRk-TkQEmMwdz8w20230515Open filing evidence
2022-01-01 – 2022-12-3114143000 Unit_Standard_USD_-oMArjitz0Oa0DvH4sA-1w20240301Open filing evidence
2022-01-01 – 2022-12-3114143000 Unit_Standard_USD_f_4I3G8X802NUhn0DKsWog20250306Open filing evidence
2022-01-01 – 2022-12-3114143000 Unit_Standard_USD_yjsFo-yBEEG_VOgwEqkReg20230316Open filing evidence
2022-07-01 – 2022-09-301925000 Unit_Standard_USD_HmfeG0MKnkuh4nOpmvtQ0w20231027Open filing evidence
2022-07-01 – 2022-09-301925000 Unit_Standard_USD_l1b-JrVMXUa6Q3o2jSxtoQ20221028Open filing evidence
2022-01-01 – 2022-09-309876000 Unit_Standard_USD_HmfeG0MKnkuh4nOpmvtQ0w20231027Open filing evidence
2022-01-01 – 2022-09-309876000 Unit_Standard_USD_l1b-JrVMXUa6Q3o2jSxtoQ20221028Open filing evidence
2022-04-01 – 2022-06-304789000 Unit_Standard_USD_cGOEXEP1tEmnkLfI-jLj2A20230728Open filing evidence
2022-04-01 – 2022-06-304789000 Unit_Standard_USD_XvSRE7OvOkKej0GcsJ-1Yg20220729Open filing evidence
2022-01-01 – 2022-06-307951000 Unit_Standard_USD_cGOEXEP1tEmnkLfI-jLj2A20230728Open filing evidence
2022-01-01 – 2022-06-307951000 Unit_Standard_USD_XvSRE7OvOkKej0GcsJ-1Yg20220729Open filing evidence
2022-01-01 – 2022-03-313162000 Unit_Standard_USD_U3PlHp3sRk-TkQEmMwdz8w20230515Open filing evidence
2022-01-01 – 2022-03-313162000 Unit_Standard_USD_zBy5_-MfkkS9nMztC2HLDA20220429Open filing evidence
2021-01-01 – 2021-12-3113530000 Unit_Standard_USD_-oMArjitz0Oa0DvH4sA-1w20240301Open filing evidence
2021-01-01 – 2021-12-3113530000 Unit_Standard_USD_bNGE1KHhXkKFhQUGZKyJBA20220307Open filing evidence
2021-01-01 – 2021-12-3113530000 Unit_Standard_USD_yjsFo-yBEEG_VOgwEqkReg20230316Open filing evidence
2021-07-01 – 2021-09-302699000 Unit_Standard_USD_gm9YYzNnSES7xq4ltOcWgg20211029Open filing evidence
2021-07-01 – 2021-09-302699000 Unit_Standard_USD_l1b-JrVMXUa6Q3o2jSxtoQ20221028Open filing evidence
2021-01-01 – 2021-09-3010638000 Unit_Standard_USD_gm9YYzNnSES7xq4ltOcWgg20211029Open filing evidence
2021-01-01 – 2021-09-3010638000 Unit_Standard_USD_l1b-JrVMXUa6Q3o2jSxtoQ20221028Open filing evidence
2021-04-01 – 2021-06-304411000 Unit_Standard_USD_cycJFKqZpkyW8t3__uxtdA20210730Open filing evidence
2021-04-01 – 2021-06-304411000 Unit_Standard_USD_XvSRE7OvOkKej0GcsJ-1Yg20220729Open filing evidence
2021-01-01 – 2021-06-307939000 Unit_Standard_USD_cycJFKqZpkyW8t3__uxtdA20210730Open filing evidence
2021-01-01 – 2021-06-307939000 Unit_Standard_USD_XvSRE7OvOkKej0GcsJ-1Yg20220729Open filing evidence
2021-01-01 – 2021-03-313528000 Unit_Standard_USD_FQ6cWwyD_kyg1dvEDXja-A20210430Open filing evidence
2021-01-01 – 2021-03-313528000 Unit_Standard_USD_zBy5_-MfkkS9nMztC2HLDA20220429Open filing evidence
2020-01-01 – 2020-12-318656000 Unit_Standard_USD_b1RP-tLdj0e1ue0xRxDbNA20210302Open filing evidence
2020-01-01 – 2020-12-318656000 Unit_Standard_USD_bNGE1KHhXkKFhQUGZKyJBA20220307Open filing evidence
2020-01-01 – 2020-12-318656000 Unit_Standard_USD_yjsFo-yBEEG_VOgwEqkReg20230316Open filing evidence
2020-07-01 – 2020-09-302114000 Unit_Standard_USD_gm9YYzNnSES7xq4ltOcWgg20211029Open filing evidence
2020-01-01 – 2020-09-305699000 Unit_Standard_USD_gm9YYzNnSES7xq4ltOcWgg20211029Open filing evidence

Structural · Commercial Concrete Segment

Product Or Service · Statement Business Segments

Multiple units reported for the same period; values are kept separate.

Source dimensions srt:ProductOrServiceAxis=orn:StructuralMember;us-gaap:StatementBusinessSegmentsAxis=orn:CommercialConcreteSegmentMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-306651000 Unit_Standard_USD_tajenR8J-0GcMv5BRTineA2026-10-28 · 20:19:57.000ZOpen filing evidence
2026-01-01 – 2026-09-3023077000 Unit_Standard_USD_tajenR8J-0GcMv5BRTineA2026-10-28 · 20:19:57.000ZOpen filing evidence
2026-04-01 – 2026-06-306673000 Unit_Standard_USD_bH0p73nz0UmOflp4v1hRwA20260729Open filing evidence
2026-01-01 – 2026-06-3016426000 Unit_Standard_USD_bH0p73nz0UmOflp4v1hRwA20260729Open filing evidence
2026-01-01 – 2026-03-319753000 Unit_Standard_USD_oHq9OWCFz0ur8YzgsReKBw20260429Open filing evidence
2025-01-01 – 2025-12-3145819000 Unit_Standard_USD_uafWKwUNWk2zqW6XbnGTPg20260304Open filing evidence
2025-07-01 – 2025-09-3011482000 Unit_Standard_USD_tajenR8J-0GcMv5BRTineA2026-10-28 · 20:19:57.000ZOpen filing evidence
2025-07-01 – 2025-09-3011482000 Unit_Standard_USD_xqNZyXcAlU-1UaDtQ473eg20251029Open filing evidence
2025-01-01 – 2025-09-3037785000 Unit_Standard_USD_tajenR8J-0GcMv5BRTineA2026-10-28 · 20:19:57.000ZOpen filing evidence
2025-01-01 – 2025-09-3037785000 Unit_Standard_USD_xqNZyXcAlU-1UaDtQ473eg20251029Open filing evidence
2025-04-01 – 2025-06-3012582000 Unit_Standard_USD_9z7i4jL4FkC6TNhNJhp2Mg20250730Open filing evidence
2025-04-01 – 2025-06-3012582000 Unit_Standard_USD_bH0p73nz0UmOflp4v1hRwA20260729Open filing evidence
2025-01-01 – 2025-06-3026303000 Unit_Standard_USD_9z7i4jL4FkC6TNhNJhp2Mg20250730Open filing evidence
2025-01-01 – 2025-06-3026303000 Unit_Standard_USD_bH0p73nz0UmOflp4v1hRwA20260729Open filing evidence
2025-01-01 – 2025-03-3113721000 Unit_Standard_USD_hcF5dfz1SEi_UMrGWeXkPg20250430Open filing evidence
2025-01-01 – 2025-03-3113721000 Unit_Standard_USD_oHq9OWCFz0ur8YzgsReKBw20260429Open filing evidence
2024-01-01 – 2024-12-3161545000 Unit_Standard_USD_f_4I3G8X802NUhn0DKsWog20250306Open filing evidence
2024-01-01 – 2024-12-3161545000 Unit_Standard_USD_uafWKwUNWk2zqW6XbnGTPg20260304Open filing evidence
2024-07-01 – 2024-09-3015572000 Unit_Standard_USD_xqNZyXcAlU-1UaDtQ473eg20251029Open filing evidence
2024-07-01 – 2024-09-3015572000 Unit_Standard_USD_znDpFkUzP0WUtzbCBIfecQ20241031Open filing evidence
2024-01-01 – 2024-09-3044040000 Unit_Standard_USD_xqNZyXcAlU-1UaDtQ473eg20251029Open filing evidence
2024-01-01 – 2024-09-3044040000 Unit_Standard_USD_znDpFkUzP0WUtzbCBIfecQ20241031Open filing evidence
2024-04-01 – 2024-06-3016895000 Unit_Standard_USD_9z7i4jL4FkC6TNhNJhp2Mg20250730Open filing evidence
2024-04-01 – 2024-06-3016895000 Unit_Standard_USD_AXV3VmLuWU6x7FZykVsGjQ20240726Open filing evidence
2024-01-01 – 2024-06-3028468000 Unit_Standard_USD_9z7i4jL4FkC6TNhNJhp2Mg20250730Open filing evidence
2024-01-01 – 2024-06-3028468000 Unit_Standard_USD_AXV3VmLuWU6x7FZykVsGjQ20240726Open filing evidence
2024-01-01 – 2024-03-3111573000 Unit_Standard_USD_-MwTFjGuqkqtJOYPf4TTuw20240426Open filing evidence
2024-01-01 – 2024-03-3111573000 Unit_Standard_USD_hcF5dfz1SEi_UMrGWeXkPg20250430Open filing evidence
2023-01-01 – 2023-12-3153827000 Unit_Standard_USD_-oMArjitz0Oa0DvH4sA-1w20240301Open filing evidence
2023-01-01 – 2023-12-3153827000 Unit_Standard_USD_f_4I3G8X802NUhn0DKsWog20250306Open filing evidence
2023-01-01 – 2023-12-3153827000 Unit_Standard_USD_uafWKwUNWk2zqW6XbnGTPg20260304Open filing evidence
2023-07-01 – 2023-09-3012268000 Unit_Standard_USD_HmfeG0MKnkuh4nOpmvtQ0w20231027Open filing evidence
2023-07-01 – 2023-09-3012268000 Unit_Standard_USD_znDpFkUzP0WUtzbCBIfecQ20241031Open filing evidence
2023-01-01 – 2023-09-3041849000 Unit_Standard_USD_HmfeG0MKnkuh4nOpmvtQ0w20231027Open filing evidence
2023-01-01 – 2023-09-3041849000 Unit_Standard_USD_znDpFkUzP0WUtzbCBIfecQ20241031Open filing evidence
2023-04-01 – 2023-06-3013837000 Unit_Standard_USD_AXV3VmLuWU6x7FZykVsGjQ20240726Open filing evidence
2023-04-01 – 2023-06-3013837000 Unit_Standard_USD_cGOEXEP1tEmnkLfI-jLj2A20230728Open filing evidence
2023-01-01 – 2023-06-3029581000 Unit_Standard_USD_AXV3VmLuWU6x7FZykVsGjQ20240726Open filing evidence
2023-01-01 – 2023-06-3029581000 Unit_Standard_USD_cGOEXEP1tEmnkLfI-jLj2A20230728Open filing evidence
2023-01-01 – 2023-03-3115744000 Unit_Standard_USD_-MwTFjGuqkqtJOYPf4TTuw20240426Open filing evidence
2023-01-01 – 2023-03-3115744000 Unit_Standard_USD_U3PlHp3sRk-TkQEmMwdz8w20230515Open filing evidence
2022-01-01 – 2022-12-3157425000 Unit_Standard_USD_-oMArjitz0Oa0DvH4sA-1w20240301Open filing evidence
2022-01-01 – 2022-12-3157425000 Unit_Standard_USD_f_4I3G8X802NUhn0DKsWog20250306Open filing evidence
2022-01-01 – 2022-12-3157425000 Unit_Standard_USD_yjsFo-yBEEG_VOgwEqkReg20230316Open filing evidence
2022-07-01 – 2022-09-3015070000 Unit_Standard_USD_HmfeG0MKnkuh4nOpmvtQ0w20231027Open filing evidence
2022-07-01 – 2022-09-3015070000 Unit_Standard_USD_l1b-JrVMXUa6Q3o2jSxtoQ20221028Open filing evidence
2022-01-01 – 2022-09-3046610000 Unit_Standard_USD_HmfeG0MKnkuh4nOpmvtQ0w20231027Open filing evidence
2022-01-01 – 2022-09-3046610000 Unit_Standard_USD_l1b-JrVMXUa6Q3o2jSxtoQ20221028Open filing evidence
2022-04-01 – 2022-06-3017864000 Unit_Standard_USD_cGOEXEP1tEmnkLfI-jLj2A20230728Open filing evidence
2022-04-01 – 2022-06-3017864000 Unit_Standard_USD_XvSRE7OvOkKej0GcsJ-1Yg20220729Open filing evidence
2022-01-01 – 2022-06-3031540000 Unit_Standard_USD_cGOEXEP1tEmnkLfI-jLj2A20230728Open filing evidence
2022-01-01 – 2022-06-3031540000 Unit_Standard_USD_XvSRE7OvOkKej0GcsJ-1Yg20220729Open filing evidence
2022-01-01 – 2022-03-3113676000 Unit_Standard_USD_U3PlHp3sRk-TkQEmMwdz8w20230515Open filing evidence
2022-01-01 – 2022-03-3113676000 Unit_Standard_USD_zBy5_-MfkkS9nMztC2HLDA20220429Open filing evidence
2021-01-01 – 2021-12-3158420000 Unit_Standard_USD_-oMArjitz0Oa0DvH4sA-1w20240301Open filing evidence
2021-01-01 – 2021-12-3158420000 Unit_Standard_USD_bNGE1KHhXkKFhQUGZKyJBA20220307Open filing evidence
2021-01-01 – 2021-12-3158420000 Unit_Standard_USD_yjsFo-yBEEG_VOgwEqkReg20230316Open filing evidence
2021-07-01 – 2021-09-3013090000 Unit_Standard_USD_gm9YYzNnSES7xq4ltOcWgg20211029Open filing evidence
2021-07-01 – 2021-09-3013090000 Unit_Standard_USD_l1b-JrVMXUa6Q3o2jSxtoQ20221028Open filing evidence
2021-01-01 – 2021-09-3047296000 Unit_Standard_USD_gm9YYzNnSES7xq4ltOcWgg20211029Open filing evidence
2021-01-01 – 2021-09-3047296000 Unit_Standard_USD_l1b-JrVMXUa6Q3o2jSxtoQ20221028Open filing evidence
2021-04-01 – 2021-06-3017545000 Unit_Standard_USD_cycJFKqZpkyW8t3__uxtdA20210730Open filing evidence
2021-04-01 – 2021-06-3017545000 Unit_Standard_USD_XvSRE7OvOkKej0GcsJ-1Yg20220729Open filing evidence
2021-01-01 – 2021-06-3034206000 Unit_Standard_USD_cycJFKqZpkyW8t3__uxtdA20210730Open filing evidence
2021-01-01 – 2021-06-3034206000 Unit_Standard_USD_XvSRE7OvOkKej0GcsJ-1Yg20220729Open filing evidence
2021-01-01 – 2021-03-3116661000 Unit_Standard_USD_FQ6cWwyD_kyg1dvEDXja-A20210430Open filing evidence
2021-01-01 – 2021-03-3116661000 Unit_Standard_USD_zBy5_-MfkkS9nMztC2HLDA20220429Open filing evidence
2020-01-01 – 2020-12-3185904000 Unit_Standard_USD_b1RP-tLdj0e1ue0xRxDbNA20210302Open filing evidence
2020-01-01 – 2020-12-3185904000 Unit_Standard_USD_bNGE1KHhXkKFhQUGZKyJBA20220307Open filing evidence
2020-01-01 – 2020-12-3185904000 Unit_Standard_USD_yjsFo-yBEEG_VOgwEqkReg20230316Open filing evidence
2020-01-01 – 2020-09-3066893000 Unit_Standard_USD_gm9YYzNnSES7xq4ltOcWgg20211029Open filing evidence

Construction · Heavy Civil Marine Construction Segment

Product Or Service · Statement Business Segments

Multiple units reported for the same period; values are kept separate.

Source dimensions srt:ProductOrServiceAxis=us-gaap:ConstructionMember;us-gaap:StatementBusinessSegmentsAxis=orn:HeavyCivilMarineConstructionSegmentMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-30127988000 Unit_Standard_USD_tajenR8J-0GcMv5BRTineA2026-10-28 · 20:19:57.000ZOpen filing evidence
2026-01-01 – 2026-09-30330552000 Unit_Standard_USD_tajenR8J-0GcMv5BRTineA2026-10-28 · 20:19:57.000ZOpen filing evidence
2026-04-01 – 2026-06-30109881000 Unit_Standard_USD_bH0p73nz0UmOflp4v1hRwA20260729Open filing evidence
2026-01-01 – 2026-06-30202564000 Unit_Standard_USD_bH0p73nz0UmOflp4v1hRwA20260729Open filing evidence
2026-01-01 – 2026-03-3192683000 Unit_Standard_USD_oHq9OWCFz0ur8YzgsReKBw20260429Open filing evidence
2025-01-01 – 2025-12-31453170000 Unit_Standard_USD_uafWKwUNWk2zqW6XbnGTPg20260304Open filing evidence
2025-07-01 – 2025-09-30116815000 Unit_Standard_USD_tajenR8J-0GcMv5BRTineA2026-10-28 · 20:19:57.000ZOpen filing evidence
2025-07-01 – 2025-09-30116815000 Unit_Standard_USD_xqNZyXcAlU-1UaDtQ473eg20251029Open filing evidence
2025-01-01 – 2025-09-30336128000 Unit_Standard_USD_tajenR8J-0GcMv5BRTineA2026-10-28 · 20:19:57.000ZOpen filing evidence
2025-01-01 – 2025-09-30336128000 Unit_Standard_USD_xqNZyXcAlU-1UaDtQ473eg20251029Open filing evidence
2025-04-01 – 2025-06-30114830000 Unit_Standard_USD_9z7i4jL4FkC6TNhNJhp2Mg20250730Open filing evidence
2025-04-01 – 2025-06-30114830000 Unit_Standard_USD_bH0p73nz0UmOflp4v1hRwA20260729Open filing evidence
2025-01-01 – 2025-06-30219312000 Unit_Standard_USD_9z7i4jL4FkC6TNhNJhp2Mg20250730Open filing evidence
2025-01-01 – 2025-06-30219312000 Unit_Standard_USD_bH0p73nz0UmOflp4v1hRwA20260729Open filing evidence
2025-01-01 – 2025-03-31104482000 Unit_Standard_USD_hcF5dfz1SEi_UMrGWeXkPg20250430Open filing evidence
2025-01-01 – 2025-03-31104482000 Unit_Standard_USD_oHq9OWCFz0ur8YzgsReKBw20260429Open filing evidence
2024-01-01 – 2024-12-31448321000 Unit_Standard_USD_f_4I3G8X802NUhn0DKsWog20250306Open filing evidence
2024-01-01 – 2024-12-31448321000 Unit_Standard_USD_uafWKwUNWk2zqW6XbnGTPg20260304Open filing evidence
2024-07-01 – 2024-09-30123141000 Unit_Standard_USD_xqNZyXcAlU-1UaDtQ473eg20251029Open filing evidence
2024-07-01 – 2024-09-30123141000 Unit_Standard_USD_znDpFkUzP0WUtzbCBIfecQ20241031Open filing evidence
2024-01-01 – 2024-09-30327955000 Unit_Standard_USD_xqNZyXcAlU-1UaDtQ473eg20251029Open filing evidence
2024-01-01 – 2024-09-30327955000 Unit_Standard_USD_znDpFkUzP0WUtzbCBIfecQ20241031Open filing evidence
2024-04-01 – 2024-06-30116025000 Unit_Standard_USD_9z7i4jL4FkC6TNhNJhp2Mg20250730Open filing evidence
2024-04-01 – 2024-06-30116025000 Unit_Standard_USD_AXV3VmLuWU6x7FZykVsGjQ20240726Open filing evidence
2024-01-01 – 2024-06-30204814000 Unit_Standard_USD_9z7i4jL4FkC6TNhNJhp2Mg20250730Open filing evidence
2024-01-01 – 2024-06-30204814000 Unit_Standard_USD_AXV3VmLuWU6x7FZykVsGjQ20240726Open filing evidence
2024-01-01 – 2024-03-3188789000 Unit_Standard_USD_-MwTFjGuqkqtJOYPf4TTuw20240426Open filing evidence
2024-01-01 – 2024-03-3188789000 Unit_Standard_USD_hcF5dfz1SEi_UMrGWeXkPg20250430Open filing evidence
2023-01-01 – 2023-12-31297462000 Unit_Standard_USD_-oMArjitz0Oa0DvH4sA-1w20240301Open filing evidence
2023-01-01 – 2023-12-31297462000 Unit_Standard_USD_f_4I3G8X802NUhn0DKsWog20250306Open filing evidence
2023-01-01 – 2023-12-31297462000 Unit_Standard_USD_uafWKwUNWk2zqW6XbnGTPg20260304Open filing evidence
2023-07-01 – 2023-09-3058162000 Unit_Standard_USD_HmfeG0MKnkuh4nOpmvtQ0w20231027Open filing evidence
2023-07-01 – 2023-09-3058162000 Unit_Standard_USD_znDpFkUzP0WUtzbCBIfecQ20241031Open filing evidence
2023-01-01 – 2023-09-30189895000 Unit_Standard_USD_HmfeG0MKnkuh4nOpmvtQ0w20231027Open filing evidence
2023-01-01 – 2023-09-30189895000 Unit_Standard_USD_znDpFkUzP0WUtzbCBIfecQ20241031Open filing evidence
2023-04-01 – 2023-06-3077721000 Unit_Standard_USD_AXV3VmLuWU6x7FZykVsGjQ20240726Open filing evidence
2023-04-01 – 2023-06-3077721000 Unit_Standard_USD_cGOEXEP1tEmnkLfI-jLj2A20230728Open filing evidence
2023-01-01 – 2023-06-30131733000 Unit_Standard_USD_AXV3VmLuWU6x7FZykVsGjQ20240726Open filing evidence
2023-01-01 – 2023-06-30131733000 Unit_Standard_USD_cGOEXEP1tEmnkLfI-jLj2A20230728Open filing evidence
2023-01-01 – 2023-03-3154012000 Unit_Standard_USD_-MwTFjGuqkqtJOYPf4TTuw20240426Open filing evidence
2023-01-01 – 2023-03-3154012000 Unit_Standard_USD_U3PlHp3sRk-TkQEmMwdz8w20230515Open filing evidence
2022-01-01 – 2022-12-31239656000 Unit_Standard_USD_-oMArjitz0Oa0DvH4sA-1w20240301Open filing evidence
2022-01-01 – 2022-12-31239656000 Unit_Standard_USD_f_4I3G8X802NUhn0DKsWog20250306Open filing evidence
2022-01-01 – 2022-12-31239656000 Unit_Standard_USD_yjsFo-yBEEG_VOgwEqkReg20230316Open filing evidence
2022-07-01 – 2022-09-3056765000 Unit_Standard_USD_HmfeG0MKnkuh4nOpmvtQ0w20231027Open filing evidence
2022-07-01 – 2022-09-3056765000 Unit_Standard_USD_l1b-JrVMXUa6Q3o2jSxtoQ20221028Open filing evidence
2022-01-01 – 2022-09-30169127000 Unit_Standard_USD_HmfeG0MKnkuh4nOpmvtQ0w20231027Open filing evidence
2022-01-01 – 2022-09-30169127000 Unit_Standard_USD_l1b-JrVMXUa6Q3o2jSxtoQ20221028Open filing evidence
2022-04-01 – 2022-06-3053210000 Unit_Standard_USD_cGOEXEP1tEmnkLfI-jLj2A20230728Open filing evidence
2022-04-01 – 2022-06-3053210000 Unit_Standard_USD_XvSRE7OvOkKej0GcsJ-1Yg20220729Open filing evidence
2022-01-01 – 2022-06-30112362000 Unit_Standard_USD_cGOEXEP1tEmnkLfI-jLj2A20230728Open filing evidence
2022-01-01 – 2022-06-30112362000 Unit_Standard_USD_XvSRE7OvOkKej0GcsJ-1Yg20220729Open filing evidence
2022-01-01 – 2022-03-3159152000 Unit_Standard_USD_U3PlHp3sRk-TkQEmMwdz8w20230515Open filing evidence
2022-01-01 – 2022-03-3159152000 Unit_Standard_USD_zBy5_-MfkkS9nMztC2HLDA20220429Open filing evidence
2021-01-01 – 2021-12-31169554000 Unit_Standard_USD_-oMArjitz0Oa0DvH4sA-1w20240301Open filing evidence
2021-01-01 – 2021-12-31169554000 Unit_Standard_USD_bNGE1KHhXkKFhQUGZKyJBA20220307Open filing evidence
2021-01-01 – 2021-12-31169554000 Unit_Standard_USD_yjsFo-yBEEG_VOgwEqkReg20230316Open filing evidence
2021-07-01 – 2021-09-3038883000 Unit_Standard_USD_gm9YYzNnSES7xq4ltOcWgg20211029Open filing evidence
2021-07-01 – 2021-09-3038883000 Unit_Standard_USD_l1b-JrVMXUa6Q3o2jSxtoQ20221028Open filing evidence
2021-01-01 – 2021-09-30121678000 Unit_Standard_USD_gm9YYzNnSES7xq4ltOcWgg20211029Open filing evidence
2021-01-01 – 2021-09-30121678000 Unit_Standard_USD_l1b-JrVMXUa6Q3o2jSxtoQ20221028Open filing evidence
2021-04-01 – 2021-06-3038859000 Unit_Standard_USD_cycJFKqZpkyW8t3__uxtdA20210730Open filing evidence
2021-04-01 – 2021-06-3038859000 Unit_Standard_USD_XvSRE7OvOkKej0GcsJ-1Yg20220729Open filing evidence
2021-01-01 – 2021-06-3082795000 Unit_Standard_USD_cycJFKqZpkyW8t3__uxtdA20210730Open filing evidence
2021-01-01 – 2021-06-3082795000 Unit_Standard_USD_XvSRE7OvOkKej0GcsJ-1Yg20220729Open filing evidence
2021-01-01 – 2021-03-3143936000 Unit_Standard_USD_FQ6cWwyD_kyg1dvEDXja-A20210430Open filing evidence
2021-01-01 – 2021-03-3143936000 Unit_Standard_USD_zBy5_-MfkkS9nMztC2HLDA20220429Open filing evidence
2020-01-01 – 2020-12-31272870000 Unit_Standard_USD_b1RP-tLdj0e1ue0xRxDbNA20210302Open filing evidence
2020-01-01 – 2020-12-31272870000 Unit_Standard_USD_bNGE1KHhXkKFhQUGZKyJBA20220307Open filing evidence
2020-01-01 – 2020-12-31272870000 Unit_Standard_USD_yjsFo-yBEEG_VOgwEqkReg20230316Open filing evidence

Maximum · Mexico And Caribbean · Heavy Civil Marine Construction Segment

Range · Statement Geographical · Statement Business Segments

Multiple units reported for the same period; values are kept separate.

Source dimensions srt:RangeAxis=srt:MaximumMember;srt:StatementGeographicalAxis=orn:MexicoAndCaribbeanMember;us-gaap:StatementBusinessSegmentsAxis=orn:HeavyCivilMarineConstructionSegmentMember
PeriodValueUnitFiledEvidence
2021-07-01 – 2021-09-30100000 Unit_Standard_USD_gm9YYzNnSES7xq4ltOcWgg20211029Open filing evidence
2021-07-01 – 2021-09-30100000 Unit_Standard_USD_l1b-JrVMXUa6Q3o2jSxtoQ20221028Open filing evidence

Mexico And Caribbean · Heavy Civil Marine Construction Segment

Statement Geographical · Statement Business Segments

Multiple units reported for the same period; values are kept separate.

Source dimensions srt:StatementGeographicalAxis=orn:MexicoAndCaribbeanMember;us-gaap:StatementBusinessSegmentsAxis=orn:HeavyCivilMarineConstructionSegmentMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-03-312800000 Unit_Standard_USD_U3PlHp3sRk-TkQEmMwdz8w20230515Open filing evidence
2022-01-01 – 2022-12-316700000 Unit_Standard_USD_yjsFo-yBEEG_VOgwEqkReg20230316Open filing evidence
2022-07-01 – 2022-09-302500000 Unit_Standard_USD_l1b-JrVMXUa6Q3o2jSxtoQ20221028Open filing evidence
2022-01-01 – 2022-09-305100000 Unit_Standard_USD_l1b-JrVMXUa6Q3o2jSxtoQ20221028Open filing evidence
2022-04-01 – 2022-06-301900000 Unit_Standard_USD_XvSRE7OvOkKej0GcsJ-1Yg20220729Open filing evidence
2022-01-01 – 2022-06-302600000 Unit_Standard_USD_XvSRE7OvOkKej0GcsJ-1Yg20220729Open filing evidence
2022-01-01 – 2022-03-31700000 Unit_Standard_USD_U3PlHp3sRk-TkQEmMwdz8w20230515Open filing evidence
2022-01-01 – 2022-03-31700000 Unit_Standard_USD_zBy5_-MfkkS9nMztC2HLDA20220429Open filing evidence
2021-01-01 – 2021-12-312900000 Unit_Standard_USD_bNGE1KHhXkKFhQUGZKyJBA20220307Open filing evidence
2021-01-01 – 2021-12-312900000 Unit_Standard_USD_yjsFo-yBEEG_VOgwEqkReg20230316Open filing evidence
2021-01-01 – 2021-09-302800000 Unit_Standard_USD_gm9YYzNnSES7xq4ltOcWgg20211029Open filing evidence
2021-01-01 – 2021-09-302800000 Unit_Standard_USD_l1b-JrVMXUa6Q3o2jSxtoQ20221028Open filing evidence
2021-04-01 – 2021-06-30400000 Unit_Standard_USD_cycJFKqZpkyW8t3__uxtdA20210730Open filing evidence
2021-04-01 – 2021-06-30400000 Unit_Standard_USD_XvSRE7OvOkKej0GcsJ-1Yg20220729Open filing evidence
2021-01-01 – 2021-06-302800000 Unit_Standard_USD_cycJFKqZpkyW8t3__uxtdA20210730Open filing evidence
2021-01-01 – 2021-06-302800000 Unit_Standard_USD_XvSRE7OvOkKej0GcsJ-1Yg20220729Open filing evidence
2021-01-01 – 2021-03-312400000 Unit_Standard_USD_FQ6cWwyD_kyg1dvEDXja-A20210430Open filing evidence
2021-01-01 – 2021-03-312400000 Unit_Standard_USD_zBy5_-MfkkS9nMztC2HLDA20220429Open filing evidence
2020-01-01 – 2020-12-3112500000 Unit_Standard_USD_b1RP-tLdj0e1ue0xRxDbNA20210302Open filing evidence
2020-01-01 – 2020-12-3112500000 Unit_Standard_USD_bNGE1KHhXkKFhQUGZKyJBA20220307Open filing evidence

Non Us · Commercial Concrete Segment

Statement Geographical · Statement Business Segments

Multiple units reported for the same period; values are kept separate.

Source dimensions srt:StatementGeographicalAxis=us-gaap:NonUsMember;us-gaap:StatementBusinessSegmentsAxis=orn:CommercialConcreteSegmentMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-03-310 Unit_Standard_USD_hcF5dfz1SEi_UMrGWeXkPg20250430Open filing evidence
2024-01-01 – 2024-12-310 Unit_Standard_USD_f_4I3G8X802NUhn0DKsWog20250306Open filing evidence
2024-07-01 – 2024-09-300 Unit_Standard_USD_znDpFkUzP0WUtzbCBIfecQ20241031Open filing evidence
2024-01-01 – 2024-09-300 Unit_Standard_USD_znDpFkUzP0WUtzbCBIfecQ20241031Open filing evidence
2024-04-01 – 2024-06-300 Unit_Standard_USD_AXV3VmLuWU6x7FZykVsGjQ20240726Open filing evidence
2024-01-01 – 2024-06-300 Unit_Standard_USD_AXV3VmLuWU6x7FZykVsGjQ20240726Open filing evidence
2024-01-01 – 2024-03-310 Unit_Standard_USD_-MwTFjGuqkqtJOYPf4TTuw20240426Open filing evidence
2024-01-01 – 2024-03-310 Unit_Standard_USD_hcF5dfz1SEi_UMrGWeXkPg20250430Open filing evidence
2023-01-01 – 2023-12-310 Unit_Standard_USD_-oMArjitz0Oa0DvH4sA-1w20240301Open filing evidence
2023-01-01 – 2023-12-310 Unit_Standard_USD_f_4I3G8X802NUhn0DKsWog20250306Open filing evidence
2023-07-01 – 2023-09-300 Unit_Standard_USD_HmfeG0MKnkuh4nOpmvtQ0w20231027Open filing evidence
2023-07-01 – 2023-09-300 Unit_Standard_USD_znDpFkUzP0WUtzbCBIfecQ20241031Open filing evidence
2023-01-01 – 2023-09-300 Unit_Standard_USD_HmfeG0MKnkuh4nOpmvtQ0w20231027Open filing evidence
2023-01-01 – 2023-09-300 Unit_Standard_USD_znDpFkUzP0WUtzbCBIfecQ20241031Open filing evidence
2023-04-01 – 2023-06-300 Unit_Standard_USD_AXV3VmLuWU6x7FZykVsGjQ20240726Open filing evidence
2023-04-01 – 2023-06-300 Unit_Standard_USD_cGOEXEP1tEmnkLfI-jLj2A20230728Open filing evidence
2023-01-01 – 2023-06-300 Unit_Standard_USD_AXV3VmLuWU6x7FZykVsGjQ20240726Open filing evidence
2023-01-01 – 2023-06-300 Unit_Standard_USD_cGOEXEP1tEmnkLfI-jLj2A20230728Open filing evidence
2023-01-01 – 2023-03-310 Unit_Standard_USD_-MwTFjGuqkqtJOYPf4TTuw20240426Open filing evidence
2023-01-01 – 2023-03-310 Unit_Standard_USD_U3PlHp3sRk-TkQEmMwdz8w20230515Open filing evidence
2022-01-01 – 2022-12-310 Unit_Standard_USD_-oMArjitz0Oa0DvH4sA-1w20240301Open filing evidence
2022-01-01 – 2022-12-310 Unit_Standard_USD_f_4I3G8X802NUhn0DKsWog20250306Open filing evidence
2022-01-01 – 2022-12-310 Unit_Standard_USD_yjsFo-yBEEG_VOgwEqkReg20230316Open filing evidence
2022-07-01 – 2022-09-300 Unit_Standard_USD_HmfeG0MKnkuh4nOpmvtQ0w20231027Open filing evidence
2022-07-01 – 2022-09-300 Unit_Standard_USD_l1b-JrVMXUa6Q3o2jSxtoQ20221028Open filing evidence
2022-01-01 – 2022-09-300 Unit_Standard_USD_HmfeG0MKnkuh4nOpmvtQ0w20231027Open filing evidence
2022-01-01 – 2022-09-300 Unit_Standard_USD_l1b-JrVMXUa6Q3o2jSxtoQ20221028Open filing evidence
2022-04-01 – 2022-06-300 Unit_Standard_USD_cGOEXEP1tEmnkLfI-jLj2A20230728Open filing evidence
2022-04-01 – 2022-06-300 Unit_Standard_USD_XvSRE7OvOkKej0GcsJ-1Yg20220729Open filing evidence
2022-01-01 – 2022-06-300 Unit_Standard_USD_cGOEXEP1tEmnkLfI-jLj2A20230728Open filing evidence
2022-01-01 – 2022-06-300 Unit_Standard_USD_XvSRE7OvOkKej0GcsJ-1Yg20220729Open filing evidence
2022-01-01 – 2022-03-310 Unit_Standard_USD_U3PlHp3sRk-TkQEmMwdz8w20230515Open filing evidence
2022-01-01 – 2022-03-310 Unit_Standard_USD_zBy5_-MfkkS9nMztC2HLDA20220429Open filing evidence
2021-01-01 – 2021-12-310 Unit_Standard_USD_-oMArjitz0Oa0DvH4sA-1w20240301Open filing evidence
2021-01-01 – 2021-12-310 Unit_Standard_USD_bNGE1KHhXkKFhQUGZKyJBA20220307Open filing evidence
2021-01-01 – 2021-12-310 Unit_Standard_USD_yjsFo-yBEEG_VOgwEqkReg20230316Open filing evidence
2021-07-01 – 2021-09-300 Unit_Standard_USD_gm9YYzNnSES7xq4ltOcWgg20211029Open filing evidence
2021-07-01 – 2021-09-300 Unit_Standard_USD_l1b-JrVMXUa6Q3o2jSxtoQ20221028Open filing evidence
2021-01-01 – 2021-09-300 Unit_Standard_USD_gm9YYzNnSES7xq4ltOcWgg20211029Open filing evidence
2021-01-01 – 2021-09-300 Unit_Standard_USD_l1b-JrVMXUa6Q3o2jSxtoQ20221028Open filing evidence
2021-04-01 – 2021-06-300 Unit_Standard_USD_cycJFKqZpkyW8t3__uxtdA20210730Open filing evidence
2021-04-01 – 2021-06-300 Unit_Standard_USD_XvSRE7OvOkKej0GcsJ-1Yg20220729Open filing evidence
2021-01-01 – 2021-06-300 Unit_Standard_USD_cycJFKqZpkyW8t3__uxtdA20210730Open filing evidence
2021-01-01 – 2021-06-300 Unit_Standard_USD_XvSRE7OvOkKej0GcsJ-1Yg20220729Open filing evidence
2021-01-01 – 2021-03-310 Unit_Standard_USD_FQ6cWwyD_kyg1dvEDXja-A20210430Open filing evidence
2021-01-01 – 2021-03-310 Unit_Standard_USD_zBy5_-MfkkS9nMztC2HLDA20220429Open filing evidence
2020-01-01 – 2020-12-310 Unit_Standard_USD_b1RP-tLdj0e1ue0xRxDbNA20210302Open filing evidence
2020-01-01 – 2020-12-310 Unit_Standard_USD_bNGE1KHhXkKFhQUGZKyJBA20220307Open filing evidence

Non Us · Heavy Civil Marine Construction Segment

Statement Geographical · Statement Business Segments

Multiple units reported for the same period; values are kept separate.

Source dimensions srt:StatementGeographicalAxis=us-gaap:NonUsMember;us-gaap:StatementBusinessSegmentsAxis=orn:HeavyCivilMarineConstructionSegmentMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-03-3111900000 Unit_Standard_USD_hcF5dfz1SEi_UMrGWeXkPg20250430Open filing evidence
2024-01-01 – 2024-12-3158900000 Unit_Standard_USD_f_4I3G8X802NUhn0DKsWog20250306Open filing evidence
2024-07-01 – 2024-09-3022800000 Unit_Standard_USD_znDpFkUzP0WUtzbCBIfecQ20241031Open filing evidence
2024-01-01 – 2024-09-3048800000 Unit_Standard_USD_znDpFkUzP0WUtzbCBIfecQ20241031Open filing evidence
2024-04-01 – 2024-06-3016500000 Unit_Standard_USD_AXV3VmLuWU6x7FZykVsGjQ20240726Open filing evidence
2024-01-01 – 2024-06-3026000000 Unit_Standard_USD_AXV3VmLuWU6x7FZykVsGjQ20240726Open filing evidence
2024-01-01 – 2024-03-319600000 Unit_Standard_USD_-MwTFjGuqkqtJOYPf4TTuw20240426Open filing evidence
2024-01-01 – 2024-03-319600000 Unit_Standard_USD_hcF5dfz1SEi_UMrGWeXkPg20250430Open filing evidence
2023-01-01 – 2023-12-3136100000 Unit_Standard_USD_-oMArjitz0Oa0DvH4sA-1w20240301Open filing evidence
2023-01-01 – 2023-12-3136100000 Unit_Standard_USD_f_4I3G8X802NUhn0DKsWog20250306Open filing evidence
2023-07-01 – 2023-09-304500000 Unit_Standard_USD_HmfeG0MKnkuh4nOpmvtQ0w20231027Open filing evidence
2023-07-01 – 2023-09-304500000 Unit_Standard_USD_znDpFkUzP0WUtzbCBIfecQ20241031Open filing evidence
2023-01-01 – 2023-09-3014500000 Unit_Standard_USD_HmfeG0MKnkuh4nOpmvtQ0w20231027Open filing evidence
2023-01-01 – 2023-09-3014500000 Unit_Standard_USD_znDpFkUzP0WUtzbCBIfecQ20241031Open filing evidence
2023-04-01 – 2023-06-307300000 Unit_Standard_USD_AXV3VmLuWU6x7FZykVsGjQ20240726Open filing evidence
2023-04-01 – 2023-06-307300000 Unit_Standard_USD_cGOEXEP1tEmnkLfI-jLj2A20230728Open filing evidence
2023-01-01 – 2023-06-3010000000 Unit_Standard_USD_AXV3VmLuWU6x7FZykVsGjQ20240726Open filing evidence
2023-01-01 – 2023-06-3010000000 Unit_Standard_USD_cGOEXEP1tEmnkLfI-jLj2A20230728Open filing evidence
2023-01-01 – 2023-03-312800000 Unit_Standard_USD_-MwTFjGuqkqtJOYPf4TTuw20240426Open filing evidence
2022-01-01 – 2022-12-316700000 Unit_Standard_USD_-oMArjitz0Oa0DvH4sA-1w20240301Open filing evidence
2022-01-01 – 2022-12-316700000 Unit_Standard_USD_f_4I3G8X802NUhn0DKsWog20250306Open filing evidence
2022-07-01 – 2022-09-302500000 Unit_Standard_USD_HmfeG0MKnkuh4nOpmvtQ0w20231027Open filing evidence
2022-01-01 – 2022-09-305100000 Unit_Standard_USD_HmfeG0MKnkuh4nOpmvtQ0w20231027Open filing evidence
2022-04-01 – 2022-06-301900000 Unit_Standard_USD_cGOEXEP1tEmnkLfI-jLj2A20230728Open filing evidence
2022-01-01 – 2022-06-302600000 Unit_Standard_USD_cGOEXEP1tEmnkLfI-jLj2A20230728Open filing evidence
2021-01-01 – 2021-12-312900000 Unit_Standard_USD_-oMArjitz0Oa0DvH4sA-1w20240301Open filing evidence

Commercial Concrete Segment

Statement Business Segments

Multiple units reported for the same period; values are kept separate.

Source dimensions us-gaap:StatementBusinessSegmentsAxis=orn:CommercialConcreteSegmentMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-3094959000 Unit_Standard_USD_tajenR8J-0GcMv5BRTineA2026-10-28 · 20:19:57.000ZOpen filing evidence
2026-01-01 – 2026-09-30292166000 Unit_Standard_USD_tajenR8J-0GcMv5BRTineA2026-10-28 · 20:19:57.000ZOpen filing evidence
2026-04-01 – 2026-06-3091035000 Unit_Standard_USD_bH0p73nz0UmOflp4v1hRwA20260729Open filing evidence
2026-01-01 – 2026-06-30197207000 Unit_Standard_USD_bH0p73nz0UmOflp4v1hRwA20260729Open filing evidence
2026-01-01 – 2026-03-31106172000 Unit_Standard_USD_oHq9OWCFz0ur8YzgsReKBw20260429Open filing evidence
2025-01-01 – 2025-12-31307429000 Unit_Standard_USD_uafWKwUNWk2zqW6XbnGTPg20260304Open filing evidence
2025-07-01 – 2025-09-3082154000 Unit_Standard_USD_tajenR8J-0GcMv5BRTineA2026-10-28 · 20:19:57.000ZOpen filing evidence
2025-07-01 – 2025-09-3082154000 Unit_Standard_USD_xqNZyXcAlU-1UaDtQ473eg20251029Open filing evidence
2025-01-01 – 2025-09-30213628000 Unit_Standard_USD_tajenR8J-0GcMv5BRTineA2026-10-28 · 20:19:57.000ZOpen filing evidence
2025-01-01 – 2025-09-30213628000 Unit_Standard_USD_xqNZyXcAlU-1UaDtQ473eg20251029Open filing evidence
2025-04-01 – 2025-06-3069984000 Unit_Standard_USD_9z7i4jL4FkC6TNhNJhp2Mg20250730Open filing evidence
2025-04-01 – 2025-06-3069984000 Unit_Standard_USD_bH0p73nz0UmOflp4v1hRwA20260729Open filing evidence
2025-01-01 – 2025-06-30131474000 Unit_Standard_USD_9z7i4jL4FkC6TNhNJhp2Mg20250730Open filing evidence
2025-01-01 – 2025-06-30131474000 Unit_Standard_USD_bH0p73nz0UmOflp4v1hRwA20260729Open filing evidence
2025-01-01 – 2025-03-3161490000 Unit_Standard_USD_hcF5dfz1SEi_UMrGWeXkPg20250430Open filing evidence
2025-01-01 – 2025-03-3161490000 Unit_Standard_USD_oHq9OWCFz0ur8YzgsReKBw20260429Open filing evidence
2024-01-01 – 2024-12-31275144000 Unit_Standard_USD_f_4I3G8X802NUhn0DKsWog20250306Open filing evidence
2024-01-01 – 2024-12-31275144000 Unit_Standard_USD_uafWKwUNWk2zqW6XbnGTPg20260304Open filing evidence
2024-07-01 – 2024-09-3086662000 Unit_Standard_USD_xqNZyXcAlU-1UaDtQ473eg20251029Open filing evidence
2024-07-01 – 2024-09-3086662000 Unit_Standard_USD_znDpFkUzP0WUtzbCBIfecQ20241031Open filing evidence
2024-01-01 – 2024-09-30202223000 Unit_Standard_USD_xqNZyXcAlU-1UaDtQ473eg20251029Open filing evidence
2024-01-01 – 2024-09-30202223000 Unit_Standard_USD_znDpFkUzP0WUtzbCBIfecQ20241031Open filing evidence
2024-04-01 – 2024-06-3061214000 Unit_Standard_USD_9z7i4jL4FkC6TNhNJhp2Mg20250730Open filing evidence
2024-04-01 – 2024-06-3061214000 Unit_Standard_USD_AXV3VmLuWU6x7FZykVsGjQ20240726Open filing evidence
2024-01-01 – 2024-06-30115561000 Unit_Standard_USD_9z7i4jL4FkC6TNhNJhp2Mg20250730Open filing evidence
2024-01-01 – 2024-06-30115561000 Unit_Standard_USD_AXV3VmLuWU6x7FZykVsGjQ20240726Open filing evidence
2024-01-01 – 2024-03-3154347000 Unit_Standard_USD_-MwTFjGuqkqtJOYPf4TTuw20240426Open filing evidence
2024-01-01 – 2024-03-3154347000 Unit_Standard_USD_hcF5dfz1SEi_UMrGWeXkPg20250430Open filing evidence
2023-01-01 – 2023-12-31315861000 Unit_Standard_USD_-oMArjitz0Oa0DvH4sA-1w20240301Open filing evidence
2023-01-01 – 2023-12-31315861000 Unit_Standard_USD_f_4I3G8X802NUhn0DKsWog20250306Open filing evidence
2023-01-01 – 2023-12-31315861000 Unit_Standard_USD_uafWKwUNWk2zqW6XbnGTPg20260304Open filing evidence
2023-07-01 – 2023-09-3087563000 Unit_Standard_USD_HmfeG0MKnkuh4nOpmvtQ0w20231027Open filing evidence
2023-07-01 – 2023-09-3087563000 Unit_Standard_USD_znDpFkUzP0WUtzbCBIfecQ20241031Open filing evidence
2023-01-01 – 2023-09-30249430000 Unit_Standard_USD_HmfeG0MKnkuh4nOpmvtQ0w20231027Open filing evidence
2023-01-01 – 2023-09-30249430000 Unit_Standard_USD_znDpFkUzP0WUtzbCBIfecQ20241031Open filing evidence
2023-04-01 – 2023-06-3081991000 Unit_Standard_USD_AXV3VmLuWU6x7FZykVsGjQ20240726Open filing evidence
2023-04-01 – 2023-06-3081991000 Unit_Standard_USD_cGOEXEP1tEmnkLfI-jLj2A20230728Open filing evidence
2023-01-01 – 2023-06-30161867000 Unit_Standard_USD_AXV3VmLuWU6x7FZykVsGjQ20240726Open filing evidence
2023-01-01 – 2023-06-30161867000 Unit_Standard_USD_cGOEXEP1tEmnkLfI-jLj2A20230728Open filing evidence
2023-01-01 – 2023-03-3179876000 Unit_Standard_USD_-MwTFjGuqkqtJOYPf4TTuw20240426Open filing evidence
2023-01-01 – 2023-03-3179876000 Unit_Standard_USD_U3PlHp3sRk-TkQEmMwdz8w20230515Open filing evidence
2022-01-01 – 2022-12-31409109000 Unit_Standard_USD_-oMArjitz0Oa0DvH4sA-1w20240301Open filing evidence
2022-01-01 – 2022-12-31409109000 Unit_Standard_USD_f_4I3G8X802NUhn0DKsWog20250306Open filing evidence
2022-01-01 – 2022-12-31409109000 Unit_Standard_USD_yjsFo-yBEEG_VOgwEqkReg20230316Open filing evidence
2022-07-01 – 2022-09-30106523000 Unit_Standard_USD_HmfeG0MKnkuh4nOpmvtQ0w20231027Open filing evidence
2022-07-01 – 2022-09-30106523000 Unit_Standard_USD_l1b-JrVMXUa6Q3o2jSxtoQ20221028Open filing evidence
2022-01-01 – 2022-09-30309230000 Unit_Standard_USD_HmfeG0MKnkuh4nOpmvtQ0w20231027Open filing evidence
2022-01-01 – 2022-09-30309230000 Unit_Standard_USD_l1b-JrVMXUa6Q3o2jSxtoQ20221028Open filing evidence
2022-04-01 – 2022-06-30112256000 Unit_Standard_USD_cGOEXEP1tEmnkLfI-jLj2A20230728Open filing evidence
2022-04-01 – 2022-06-30112256000 Unit_Standard_USD_XvSRE7OvOkKej0GcsJ-1Yg20220729Open filing evidence
2022-01-01 – 2022-06-30202707000 Unit_Standard_USD_cGOEXEP1tEmnkLfI-jLj2A20230728Open filing evidence
2022-01-01 – 2022-06-30202707000 Unit_Standard_USD_XvSRE7OvOkKej0GcsJ-1Yg20220729Open filing evidence
2022-01-01 – 2022-03-3190451000 Unit_Standard_USD_U3PlHp3sRk-TkQEmMwdz8w20230515Open filing evidence
2022-01-01 – 2022-03-3190451000 Unit_Standard_USD_zBy5_-MfkkS9nMztC2HLDA20220429Open filing evidence
2021-01-01 – 2021-12-31337445000 Unit_Standard_USD_-oMArjitz0Oa0DvH4sA-1w20240301Open filing evidence
2021-01-01 – 2021-12-31337445000 Unit_Standard_USD_bNGE1KHhXkKFhQUGZKyJBA20220307Open filing evidence
2021-01-01 – 2021-12-31337445000 Unit_Standard_USD_yjsFo-yBEEG_VOgwEqkReg20230316Open filing evidence
2021-07-01 – 2021-09-3085168000 Unit_Standard_USD_gm9YYzNnSES7xq4ltOcWgg20211029Open filing evidence
2021-07-01 – 2021-09-3085168000 Unit_Standard_USD_l1b-JrVMXUa6Q3o2jSxtoQ20221028Open filing evidence
2021-01-01 – 2021-09-30248264000 Unit_Standard_USD_gm9YYzNnSES7xq4ltOcWgg20211029Open filing evidence
2021-01-01 – 2021-09-30248264000 Unit_Standard_USD_l1b-JrVMXUa6Q3o2jSxtoQ20221028Open filing evidence
2021-04-01 – 2021-06-3081933000 Unit_Standard_USD_cycJFKqZpkyW8t3__uxtdA20210730Open filing evidence
2021-04-01 – 2021-06-3081933000 Unit_Standard_USD_XvSRE7OvOkKej0GcsJ-1Yg20220729Open filing evidence
2021-01-01 – 2021-06-30163096000 Unit_Standard_USD_cycJFKqZpkyW8t3__uxtdA20210730Open filing evidence
2021-01-01 – 2021-06-30163096000 Unit_Standard_USD_XvSRE7OvOkKej0GcsJ-1Yg20220729Open filing evidence
2021-01-01 – 2021-03-3181163000 Unit_Standard_USD_FQ6cWwyD_kyg1dvEDXja-A20210430Open filing evidence
2021-01-01 – 2021-03-3181163000 Unit_Standard_USD_zBy5_-MfkkS9nMztC2HLDA20220429Open filing evidence
2020-01-01 – 2020-12-31321769000 Unit_Standard_USD_b1RP-tLdj0e1ue0xRxDbNA20210302Open filing evidence
2020-01-01 – 2020-12-31321769000 Unit_Standard_USD_bNGE1KHhXkKFhQUGZKyJBA20220307Open filing evidence
2020-01-01 – 2020-12-31321769000 Unit_Standard_USD_yjsFo-yBEEG_VOgwEqkReg20230316Open filing evidence

Heavy Civil Marine Construction Segment

Statement Business Segments

Multiple units reported for the same period; values are kept separate.

Source dimensions us-gaap:StatementBusinessSegmentsAxis=orn:HeavyCivilMarineConstructionSegmentMember
PeriodValueUnitFiledEvidence
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2026-01-01 – 2026-03-31110129000 Unit_Standard_USD_oHq9OWCFz0ur8YzgsReKBw20260429Open filing evidence
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2025-04-01 – 2025-06-30135302000 Unit_Standard_USD_bH0p73nz0UmOflp4v1hRwA20260729Open filing evidence
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2025-01-01 – 2025-06-30262465000 Unit_Standard_USD_bH0p73nz0UmOflp4v1hRwA20260729Open filing evidence
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2025-01-01 – 2025-03-31127163000 Unit_Standard_USD_oHq9OWCFz0ur8YzgsReKBw20260429Open filing evidence
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2021-01-01 – 2021-12-31263915000 Unit_Standard_USD_yjsFo-yBEEG_VOgwEqkReg20230316Open filing evidence
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