Segment disclosures

Company overview

GATX Corporation

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

Revenue · Reported segment facts

8 dimension combinations 471 retained observations 67 reported periods

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.

Asc

Statement Business Segments

Source dimensions us-gaap:StatementBusinessSegmentsAxis=gmt:AscMember
PeriodValueUnitFiledEvidence
2020-01-01 – 2020-03-319500000 USD2020-05-05 · 17:54:56.000ZOpen filing evidence
2019-01-01 – 2019-12-31191700000 USD2020-02-19 · 22:05:14.000ZOpen filing evidence
2019-07-01 – 2019-09-3061900000 USD2019-10-25 · 19:38:40.000ZOpen filing evidence
2019-01-01 – 2019-09-30135500000 USD2019-10-25 · 19:38:40.000ZOpen filing evidence
2019-04-01 – 2019-06-3061900000 USD2019-07-29 · 18:29:28.000ZOpen filing evidence
2019-01-01 – 2019-06-3073600000 USD2019-07-29 · 18:29:28.000ZOpen filing evidence
2019-01-01 – 2019-03-3111700000 USD2020-05-05 · 17:54:56.000ZOpen filing evidence
2018-01-01 – 2018-12-31185800000 USD2020-02-19 · 22:05:14.000ZOpen filing evidence
2018-07-01 – 2018-09-3058800000 USD2019-10-25 · 19:38:40.000ZOpen filing evidence
2018-01-01 – 2018-09-30122900000 USD2019-10-25 · 19:38:40.000ZOpen filing evidence
2018-04-01 – 2018-06-3053300000 USD2019-07-29 · 18:29:28.000ZOpen filing evidence
2018-01-01 – 2018-06-3064100000 USD2019-07-29 · 18:29:28.000ZOpen filing evidence
2018-01-01 – 2018-03-3110800000 USD2019-04-30 · 20:09:02.000ZOpen filing evidence
2017-01-01 – 2017-12-31172500000 USD2020-02-19 · 22:05:14.000ZOpen filing evidence
2017-07-01 – 2017-09-3060200000 USD2018-10-26 · 18:38:28.000ZOpen filing evidence
2017-01-01 – 2017-09-30116300000 USD2018-10-26 · 18:38:28.000ZOpen filing evidence
2017-04-01 – 2017-06-3048700000 USD20180727Open filing evidence
2017-01-01 – 2017-06-3056100000 USD20180727Open filing evidence
2017-01-01 – 2017-03-317400000 USD20180501Open filing evidence
2016-01-01 – 2016-12-31154200000 USD2019-02-25 · 19:53:14.000ZOpen filing evidence
2016-07-01 – 2016-09-3052800000 USD20171027Open filing evidence
2016-01-01 – 2016-09-30105400000 USD20171027Open filing evidence
2016-04-01 – 2016-06-3047500000 USD20170728Open filing evidence
2016-01-01 – 2016-06-3052600000 USD20170728Open filing evidence
2016-01-01 – 2016-03-315100000 USD20170505Open filing evidence
2015-01-01 – 2015-12-31170200000 USD20180221Open filing evidence
2015-07-01 – 2015-09-3062800000 USD20161031Open filing evidence
2015-01-01 – 2015-09-30122800000 USD20161031Open filing evidence
2015-04-01 – 2015-06-3052000000 USD20160729Open filing evidence
2015-01-01 – 2015-06-3060000000 USD20160729Open filing evidence
2015-01-01 – 2015-03-318000000 USD20160425Open filing evidence
2014-01-01 – 2014-12-31227200000 USD20170222Open filing evidence
2014-07-01 – 2014-09-3083800000 USD20151030Open filing evidence
2014-01-01 – 2014-09-30148400000 USD20151030Open filing evidence
2014-04-01 – 2014-06-3060400000 USD20150731Open filing evidence
2014-01-01 – 2014-06-3064600000 USD20150731Open filing evidence
2014-01-01 – 2014-03-314200000 USD20150428Open filing evidence
2013-01-01 – 2013-12-31227700000 USD20160224Open filing evidence
2013-07-01 – 2013-09-3074100000 USD20141106Open filing evidence
2013-01-01 – 2013-09-30160200000 USD20141106Open filing evidence
2013-04-01 – 2013-06-3072700000 USD20140731Open filing evidence
2013-01-01 – 2013-06-3086100000 USD20140731Open filing evidence
2013-01-01 – 2013-03-3113400000 USD20140429Open filing evidence
2012-01-01 – 2012-12-31243400000 USD20150225Open filing evidence
2012-07-01 – 2012-09-3080200000 USD20131030Open filing evidence
2012-01-01 – 2012-09-30169200000 USD20131030Open filing evidence
2012-04-01 – 2012-06-3077200000 USD20130725Open filing evidence
2012-01-01 – 2012-06-3089000000 USD20130725Open filing evidence
2012-01-01 – 2012-03-3111800000 USD20130501Open filing evidence
2011-01-01 – 2011-12-31216400000 RestatedUSD20140225Open filing evidence
2011-07-01 – 2011-09-3071300000 USD20121024Open filing evidence
2011-01-01 – 2011-09-30142200000 USD20121024Open filing evidence
2011-04-01 – 2011-06-3058800000 USD20120725Open filing evidence
2011-01-01 – 2011-06-3070900000 USD20120725Open filing evidence
2011-01-01 – 2011-03-3112100000 USD20120501Open filing evidence
2010-01-01 – 2010-12-31189400000 RestatedUSD20130301Open filing evidence
2010-07-01 – 2010-09-3065900000 USD20111028Open filing evidence
2010-01-01 – 2010-09-30128600000 USD20111028Open filing evidence
2010-04-01 – 2010-06-3053400000 USD20110728Open filing evidence
2010-01-01 – 2010-06-3062700000 USD20110728Open filing evidence
2009-01-01 – 2009-12-31132700000 USD20120307Open filing evidence

Engine Leasing

Statement Business Segments

Source dimensions us-gaap:StatementBusinessSegmentsAxis=gmt:EngineLeasingMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-3031000000 USD2026-10-30 · 17:20:33.000ZOpen filing evidence
2026-01-01 – 2026-09-3092000000 USD2026-10-30 · 17:20:33.000ZOpen filing evidence
2026-04-01 – 2026-06-3029400000 USD2026-07-31 · 17:54:54.000ZOpen filing evidence
2026-01-01 – 2026-06-3061000000 USD2026-07-31 · 17:54:54.000ZOpen filing evidence
2026-01-01 – 2026-03-3131600000 USD2026-05-07 · 20:23:03.000ZOpen filing evidence
2025-07-01 – 2025-09-3032900000 USD2026-10-30 · 17:20:33.000ZOpen filing evidence
2025-01-01 – 2025-09-3091100000 USD2026-10-30 · 17:20:33.000ZOpen filing evidence
2025-04-01 – 2025-06-3028600000 USD2026-07-31 · 17:54:54.000ZOpen filing evidence
2025-01-01 – 2025-06-3058200000 USD2026-07-31 · 17:54:54.000ZOpen filing evidence
2025-01-01 – 2025-03-3129600000 USD2026-05-07 · 20:23:03.000ZOpen filing evidence
2024-07-01 – 2024-09-3026200000 USD2025-10-30 · 20:49:48.000ZOpen filing evidence
2024-01-01 – 2024-09-3069300000 USD2025-10-30 · 20:49:48.000ZOpen filing evidence
2024-04-01 – 2024-06-3021800000 USD2025-07-29 · 18:27:19.000ZOpen filing evidence
2024-01-01 – 2024-06-3043100000 USD2025-07-29 · 18:27:19.000ZOpen filing evidence
2024-01-01 – 2024-03-3121300000 USD2025-04-25 · 17:11:36.000ZOpen filing evidence
2023-07-01 – 2023-09-3022400000 USD2024-10-24 · 20:23:02.000ZOpen filing evidence
2023-01-01 – 2023-09-3055200000 USD2024-10-24 · 20:23:02.000ZOpen filing evidence
2023-04-01 – 2023-06-3016500000 USD2024-07-25 · 20:16:17.000ZOpen filing evidence
2023-01-01 – 2023-06-3032800000 USD2024-07-25 · 20:16:17.000ZOpen filing evidence
2023-01-01 – 2023-03-3116300000 USD2024-04-26 · 15:09:50.000ZOpen filing evidence

Other Business Segments

Statement Business Segments

Source dimensions us-gaap:StatementBusinessSegmentsAxis=gmt:OtherBusinessSegmentsMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-3010500000 USD2026-10-30 · 17:20:33.000ZOpen filing evidence
2026-01-01 – 2026-09-3030800000 USD2026-10-30 · 17:20:33.000ZOpen filing evidence
2026-04-01 – 2026-06-3010100000 USD2026-07-31 · 17:54:54.000ZOpen filing evidence
2026-01-01 – 2026-06-3020300000 USD2026-07-31 · 17:54:54.000ZOpen filing evidence
2026-01-01 – 2026-03-3110200000 USD2026-05-07 · 20:23:03.000ZOpen filing evidence
2025-01-01 – 2025-12-3141300000 USD2026-02-19 · 21:22:36.000ZOpen filing evidence
2025-07-01 – 2025-09-3010500000 USD2026-10-30 · 17:20:33.000ZOpen filing evidence
2025-01-01 – 2025-09-3031100000 USD2026-10-30 · 17:20:33.000ZOpen filing evidence
2025-04-01 – 2025-06-3010400000 USD2026-07-31 · 17:54:54.000ZOpen filing evidence
2025-01-01 – 2025-06-3020600000 USD2026-07-31 · 17:54:54.000ZOpen filing evidence
2025-01-01 – 2025-03-3110200000 USD2026-05-07 · 20:23:03.000ZOpen filing evidence
2024-01-01 – 2024-12-3139100000 USD2026-02-19 · 21:22:36.000ZOpen filing evidence
2024-07-01 – 2024-09-3010100000 USD2025-10-30 · 20:49:48.000ZOpen filing evidence
2024-01-01 – 2024-09-3029300000 USD2025-10-30 · 20:49:48.000ZOpen filing evidence
2024-04-01 – 2024-06-309300000 USD2025-07-29 · 18:27:19.000ZOpen filing evidence
2024-01-01 – 2024-06-3019200000 USD2025-07-29 · 18:27:19.000ZOpen filing evidence
2024-01-01 – 2024-03-319900000 USD2025-04-25 · 17:11:36.000ZOpen filing evidence
2023-01-01 – 2023-12-3141500000 USD2026-02-19 · 21:22:36.000ZOpen filing evidence
2023-07-01 – 2023-09-3010600000 USD2024-10-24 · 20:23:02.000ZOpen filing evidence
2023-01-01 – 2023-09-3031100000 USD2024-10-24 · 20:23:02.000ZOpen filing evidence
2023-04-01 – 2023-06-3010100000 USD2024-07-25 · 20:16:17.000ZOpen filing evidence
2023-01-01 – 2023-06-3020500000 USD2024-07-25 · 20:16:17.000ZOpen filing evidence
2023-01-01 – 2023-03-3110400000 USD2024-04-26 · 15:09:50.000ZOpen filing evidence
2022-01-01 – 2022-12-3136100000 USD2025-02-19 · 21:19:43.000ZOpen filing evidence
2022-07-01 – 2022-09-309000000 USD2023-10-26 · 19:02:11.000ZOpen filing evidence
2022-01-01 – 2022-09-3026500000 USD2023-10-26 · 19:02:11.000ZOpen filing evidence
2022-04-01 – 2022-06-309000000 USD2023-07-27 · 20:34:28.000ZOpen filing evidence
2022-01-01 – 2022-06-3017500000 USD2023-07-27 · 20:34:28.000ZOpen filing evidence
2022-01-01 – 2022-03-318500000 USD2023-04-28 · 19:36:34.000ZOpen filing evidence
2021-01-01 – 2021-12-3133700000 USD2024-02-16 · 17:38:45.000ZOpen filing evidence
2021-07-01 – 2021-09-308900000 USD2022-10-28 · 20:26:57.000ZOpen filing evidence
2021-01-01 – 2021-09-3022000000 USD2022-10-28 · 20:26:57.000ZOpen filing evidence
2021-04-01 – 2021-06-308400000 USD2022-07-29 · 19:48:17.000ZOpen filing evidence
2021-01-01 – 2021-06-3013100000 USD2022-07-29 · 19:48:17.000ZOpen filing evidence
2021-01-01 – 2021-03-314700000 USD2022-04-28 · 20:08:20.000ZOpen filing evidence
2020-01-01 – 2020-12-310 USD2023-02-16 · 19:46:33.000ZOpen filing evidence
2020-07-01 – 2020-09-300 USD2021-10-29 · 18:48:33.000ZOpen filing evidence
2020-01-01 – 2020-09-300 USD2021-10-29 · 18:48:33.000ZOpen filing evidence
2020-04-01 – 2020-06-300 USD2021-07-30 · 19:09:03.000ZOpen filing evidence
2020-01-01 – 2020-06-300 USD2021-07-30 · 19:09:03.000ZOpen filing evidence
2020-01-01 – 2020-03-310 USD2021-04-29 · 18:35:47.000ZOpen filing evidence
2019-01-01 – 2019-12-310 USD2022-02-17 · 21:15:31.000ZOpen filing evidence
2019-07-01 – 2019-09-300 USD2020-10-30 · 21:10:14.000ZOpen filing evidence
2019-01-01 – 2019-09-300 USD2020-10-30 · 21:10:14.000ZOpen filing evidence
2019-04-01 – 2019-06-300 USD2020-08-03 · 20:29:15.000ZOpen filing evidence
2019-01-01 – 2019-06-300 USD2020-08-03 · 20:29:15.000ZOpen filing evidence
2019-01-01 – 2019-03-310 USD2020-05-05 · 17:54:56.000ZOpen filing evidence
2018-01-01 – 2018-12-310 USD2021-02-18 · 17:06:12.000ZOpen filing evidence
2018-07-01 – 2018-09-300 USD2019-10-25 · 19:38:40.000ZOpen filing evidence
2018-01-01 – 2018-09-300 USD2019-10-25 · 19:38:40.000ZOpen filing evidence
2018-04-01 – 2018-06-300 USD2019-07-29 · 18:29:28.000ZOpen filing evidence
2018-01-01 – 2018-06-300 USD2019-07-29 · 18:29:28.000ZOpen filing evidence
2018-01-01 – 2018-03-310 USD2019-04-30 · 20:09:02.000ZOpen filing evidence
2017-01-01 – 2017-12-310 USD2020-02-19 · 22:05:14.000ZOpen filing evidence
2017-07-01 – 2017-09-300 USD2018-10-26 · 18:38:28.000ZOpen filing evidence
2017-01-01 – 2017-09-300 USD2018-10-26 · 18:38:28.000ZOpen filing evidence
2017-04-01 – 2017-06-300 USD20180727Open filing evidence
2017-01-01 – 2017-06-300 USD20180727Open filing evidence
2017-01-01 – 2017-03-310 USD20180501Open filing evidence
2016-01-01 – 2016-12-310 USD2019-02-25 · 19:53:14.000ZOpen filing evidence
2016-07-01 – 2016-09-300 USD20171027Open filing evidence
2016-01-01 – 2016-09-300 USD20171027Open filing evidence
2016-04-01 – 2016-06-300 USD20170728Open filing evidence
2016-01-01 – 2016-06-300 USD20170728Open filing evidence
2016-01-01 – 2016-03-310 USD20170505Open filing evidence
2015-01-01 – 2015-12-310 USD20180221Open filing evidence
2015-07-01 – 2015-09-300 USD20161031Open filing evidence
2015-01-01 – 2015-09-300 USD20161031Open filing evidence
2015-04-01 – 2015-06-300 USD20160729Open filing evidence
2015-01-01 – 2015-06-300 USD20160729Open filing evidence
2015-01-01 – 2015-03-310 USD20160425Open filing evidence
2014-01-01 – 2014-12-310 USD20170222Open filing evidence
2014-07-01 – 2014-09-300 USD20151030Open filing evidence
2014-01-01 – 2014-09-300 USD20151030Open filing evidence
2014-04-01 – 2014-06-300 USD20150731Open filing evidence
2014-01-01 – 2014-06-300 USD20150731Open filing evidence
2014-01-01 – 2014-03-310 USD20150428Open filing evidence
2013-01-01 – 2013-12-310 USD20160224Open filing evidence
2013-07-01 – 2013-09-300 USD20141106Open filing evidence
2013-01-01 – 2013-09-300 USD20141106Open filing evidence
2013-04-01 – 2013-06-300 USD20140731Open filing evidence
2013-01-01 – 2013-06-300 USD20140731Open filing evidence
2013-01-01 – 2013-03-310 USD20140429Open filing evidence
2012-01-01 – 2012-12-310 USD20150225Open filing evidence
2012-07-01 – 2012-09-300 RestatedUSD20131030Open filing evidence
2012-01-01 – 2012-09-300 RestatedUSD20131030Open filing evidence
2012-04-01 – 2012-06-300 RestatedUSD20130725Open filing evidence
2012-01-01 – 2012-06-300 RestatedUSD20130725Open filing evidence
2012-01-01 – 2012-03-310 RestatedUSD20130501Open filing evidence
2011-01-01 – 2011-12-310 RestatedUSD20140225Open filing evidence
2011-07-01 – 2011-09-30300000 USD20121024Open filing evidence
2011-01-01 – 2011-09-301000000 USD20121024Open filing evidence
2011-04-01 – 2011-06-30500000 USD20120725Open filing evidence
2011-01-01 – 2011-06-30700000 USD20120725Open filing evidence
2011-01-01 – 2011-03-31200000 USD20120501Open filing evidence
2010-01-01 – 2010-12-310 RestatedUSD20130301Open filing evidence
2010-07-01 – 2010-09-30200000 USD20111028Open filing evidence
2010-01-01 – 2010-09-301100000 USD20111028Open filing evidence
2010-04-01 – 2010-06-30700000 USD20110728Open filing evidence
2010-01-01 – 2010-06-30900000 USD20110728Open filing evidence
2009-01-01 – 2009-12-311100000 USD20120307Open filing evidence

Portfolio Management

Statement Business Segments

Source dimensions us-gaap:StatementBusinessSegmentsAxis=gmt:PortfolioManagementMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-12-31124900000 USD2026-02-19 · 21:22:36.000ZOpen filing evidence
2024-01-01 – 2024-12-3197100000 USD2026-02-19 · 21:22:36.000ZOpen filing evidence
2023-01-01 – 2023-12-3177200000 USD2026-02-19 · 21:22:36.000ZOpen filing evidence
2023-07-01 – 2023-09-3022400000 USD2023-10-26 · 19:02:11.000ZOpen filing evidence
2023-01-01 – 2023-09-3055200000 USD2023-10-26 · 19:02:11.000ZOpen filing evidence
2023-04-01 – 2023-06-3016500000 USD2023-07-27 · 20:34:28.000ZOpen filing evidence
2023-01-01 – 2023-06-3032800000 USD2023-07-27 · 20:34:28.000ZOpen filing evidence
2023-01-01 – 2023-03-3116300000 USD2023-04-28 · 19:36:34.000ZOpen filing evidence
2022-01-01 – 2022-12-3153600000 USD2025-02-19 · 21:19:43.000ZOpen filing evidence
2022-07-01 – 2022-09-3013100000 USD2023-10-26 · 19:02:11.000ZOpen filing evidence
2022-01-01 – 2022-09-3041100000 USD2023-10-26 · 19:02:11.000ZOpen filing evidence
2022-04-01 – 2022-06-3013500000 USD2023-07-27 · 20:34:28.000ZOpen filing evidence
2022-01-01 – 2022-06-3028000000 USD2023-07-27 · 20:34:28.000ZOpen filing evidence
2022-01-01 – 2022-03-3114500000 USD2023-04-28 · 19:36:34.000ZOpen filing evidence
2021-01-01 – 2021-12-3147700000 USD2024-02-16 · 17:38:45.000ZOpen filing evidence
2021-07-01 – 2021-09-3013300000 USD2022-10-28 · 20:26:57.000ZOpen filing evidence
2021-01-01 – 2021-09-3034000000 USD2022-10-28 · 20:26:57.000ZOpen filing evidence
2021-04-01 – 2021-06-3013600000 USD2022-07-29 · 19:48:17.000ZOpen filing evidence
2021-01-01 – 2021-06-3020700000 USD2022-07-29 · 19:48:17.000ZOpen filing evidence
2021-01-01 – 2021-03-317100000 USD2022-04-28 · 20:08:20.000ZOpen filing evidence
2020-01-01 – 2020-12-3117000000 USD2023-02-16 · 19:46:33.000ZOpen filing evidence
2020-07-01 – 2020-09-305200000 USD2021-10-29 · 18:48:33.000ZOpen filing evidence
2020-01-01 – 2020-09-3012600000 USD2021-10-29 · 18:48:33.000ZOpen filing evidence
2020-04-01 – 2020-06-303800000 USD2021-07-30 · 19:09:03.000ZOpen filing evidence
2020-01-01 – 2020-06-307400000 USD2021-07-30 · 19:09:03.000ZOpen filing evidence
2020-01-01 – 2020-03-313600000 USD2021-04-29 · 18:35:47.000ZOpen filing evidence
2019-01-01 – 2019-12-319900000 USD2022-02-17 · 21:15:31.000ZOpen filing evidence
2019-07-01 – 2019-09-302300000 USD2020-10-30 · 21:10:14.000ZOpen filing evidence
2019-01-01 – 2019-09-305700000 USD2020-10-30 · 21:10:14.000ZOpen filing evidence
2019-04-01 – 2019-06-30600000 USD2020-08-03 · 20:29:15.000ZOpen filing evidence
2019-01-01 – 2019-06-303400000 USD2020-08-03 · 20:29:15.000ZOpen filing evidence
2019-01-01 – 2019-03-312800000 USD2020-05-05 · 17:54:56.000ZOpen filing evidence
2018-01-01 – 2018-12-3116100000 USD2021-02-18 · 17:06:12.000ZOpen filing evidence
2018-07-01 – 2018-09-303400000 USD2019-10-25 · 19:38:40.000ZOpen filing evidence
2018-01-01 – 2018-09-3012300000 USD2019-10-25 · 19:38:40.000ZOpen filing evidence
2018-04-01 – 2018-06-304100000 USD2019-07-29 · 18:29:28.000ZOpen filing evidence
2018-01-01 – 2018-06-308900000 USD2019-07-29 · 18:29:28.000ZOpen filing evidence
2018-01-01 – 2018-03-314800000 USD2019-04-30 · 20:09:02.000ZOpen filing evidence
2017-01-01 – 2017-12-3129900000 USD2020-02-19 · 22:05:14.000ZOpen filing evidence
2017-07-01 – 2017-09-304700000 USD2018-10-26 · 18:38:28.000ZOpen filing evidence
2017-01-01 – 2017-09-3025900000 USD2018-10-26 · 18:38:28.000ZOpen filing evidence
2017-04-01 – 2017-06-308900000 USD20180727Open filing evidence
2017-01-01 – 2017-06-3021200000 USD20180727Open filing evidence
2017-01-01 – 2017-03-3112300000 USD20180501Open filing evidence
2016-01-01 – 2016-12-3156600000 USD2019-02-25 · 19:53:14.000ZOpen filing evidence
2016-07-01 – 2016-09-3011600000 USD20171027Open filing evidence
2016-01-01 – 2016-09-3042700000 USD20171027Open filing evidence
2016-04-01 – 2016-06-3012700000 USD20170728Open filing evidence
2016-01-01 – 2016-06-3031100000 USD20170728Open filing evidence
2016-01-01 – 2016-03-3118400000 USD20170505Open filing evidence
2015-01-01 – 2015-12-3192500000 USD20180221Open filing evidence
2015-07-01 – 2015-09-3022400000 USD20161031Open filing evidence
2015-01-01 – 2015-09-3068400000 USD20161031Open filing evidence
2015-04-01 – 2015-06-3021500000 USD20160729Open filing evidence
2015-01-01 – 2015-06-3046000000 USD20160729Open filing evidence
2015-01-01 – 2015-03-3124500000 USD20160425Open filing evidence
2014-01-01 – 2014-12-3197400000 USD20170222Open filing evidence
2014-07-01 – 2014-09-3024900000 USD20151030Open filing evidence
2014-01-01 – 2014-09-3069600000 USD20151030Open filing evidence
2014-04-01 – 2014-06-3021000000 USD20150731Open filing evidence
2014-01-01 – 2014-06-3044700000 USD20150731Open filing evidence
2014-01-01 – 2014-03-3123700000 USD20150428Open filing evidence
2013-01-01 – 2013-12-3187200000 USD20160224Open filing evidence
2013-07-01 – 2013-09-3025100000 USD20141106Open filing evidence
2013-01-01 – 2013-09-3061000000 USD20141106Open filing evidence
2013-04-01 – 2013-06-3019800000 USD20140731Open filing evidence
2013-01-01 – 2013-06-3035900000 USD20140731Open filing evidence
2013-01-01 – 2013-03-3116100000 USD20140429Open filing evidence
2012-01-01 – 2012-12-3166800000 USD20150225Open filing evidence
2012-07-01 – 2012-09-3016800000 RestatedUSD20131030Open filing evidence
2012-01-01 – 2012-09-3050800000 RestatedUSD20131030Open filing evidence
2012-04-01 – 2012-06-3016600000 RestatedUSD20130725Open filing evidence
2012-01-01 – 2012-06-3034000000 RestatedUSD20130725Open filing evidence
2012-01-01 – 2012-03-3117400000 RestatedUSD20130501Open filing evidence
2011-01-01 – 2011-12-3164300000 RestatedUSD20140225Open filing evidence
2011-07-01 – 2011-09-3023700000 USD20121024Open filing evidence
2011-01-01 – 2011-09-3057200000 USD20121024Open filing evidence
2011-04-01 – 2011-06-3017600000 USD20120725Open filing evidence
2011-01-01 – 2011-06-3033500000 USD20120725Open filing evidence
2011-01-01 – 2011-03-3115900000 USD20120501Open filing evidence
2010-01-01 – 2010-12-3157100000 RestatedUSD20130301Open filing evidence
2009-01-01 – 2009-12-3174700000 USD20120307Open filing evidence

Rail International

Statement Business Segments

Source dimensions us-gaap:StatementBusinessSegmentsAxis=gmt:RailInternationalMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-30108500000 USD2026-10-30 · 17:20:33.000ZOpen filing evidence
2026-01-01 – 2026-09-30319300000 USD2026-10-30 · 17:20:33.000ZOpen filing evidence
2026-04-01 – 2026-06-30105600000 USD2026-07-31 · 17:54:54.000ZOpen filing evidence
2026-01-01 – 2026-06-30210800000 USD2026-07-31 · 17:54:54.000ZOpen filing evidence
2026-01-01 – 2026-03-31105200000 USD2026-05-07 · 20:23:03.000ZOpen filing evidence
2025-01-01 – 2025-12-31387800000 USD2026-02-19 · 21:22:36.000ZOpen filing evidence
2025-07-01 – 2025-09-3099400000 USD2026-10-30 · 17:20:33.000ZOpen filing evidence
2025-01-01 – 2025-09-30283700000 USD2026-10-30 · 17:20:33.000ZOpen filing evidence
2025-04-01 – 2025-06-3095800000 USD2026-07-31 · 17:54:54.000ZOpen filing evidence
2025-01-01 – 2025-06-30184300000 USD2026-07-31 · 17:54:54.000ZOpen filing evidence
2025-01-01 – 2025-03-3188500000 USD2026-05-07 · 20:23:03.000ZOpen filing evidence
2024-01-01 – 2024-12-31350300000 USD2026-02-19 · 21:22:36.000ZOpen filing evidence
2024-07-01 – 2024-09-3090600000 USD2025-10-30 · 20:49:48.000ZOpen filing evidence
2024-01-01 – 2024-09-30259500000 USD2025-10-30 · 20:49:48.000ZOpen filing evidence
2024-04-01 – 2024-06-3085200000 USD2025-07-29 · 18:27:19.000ZOpen filing evidence
2024-01-01 – 2024-06-30168900000 USD2025-07-29 · 18:27:19.000ZOpen filing evidence
2024-01-01 – 2024-03-3183700000 USD2025-04-25 · 17:11:36.000ZOpen filing evidence
2023-01-01 – 2023-12-31309500000 USD2026-02-19 · 21:22:36.000ZOpen filing evidence
2023-07-01 – 2023-09-3079200000 USD2024-10-24 · 20:23:02.000ZOpen filing evidence
2023-01-01 – 2023-09-30228700000 USD2024-10-24 · 20:23:02.000ZOpen filing evidence
2023-04-01 – 2023-06-3076200000 USD2024-07-25 · 20:16:17.000ZOpen filing evidence
2023-01-01 – 2023-06-30149500000 USD2024-07-25 · 20:16:17.000ZOpen filing evidence
2023-01-01 – 2023-03-3173300000 USD2024-04-26 · 15:09:50.000ZOpen filing evidence
2022-01-01 – 2022-12-31275300000 USD2025-02-19 · 21:19:43.000ZOpen filing evidence
2022-07-01 – 2022-09-3067600000 USD2023-10-26 · 19:02:11.000ZOpen filing evidence
2022-01-01 – 2022-09-30205900000 USD2023-10-26 · 19:02:11.000ZOpen filing evidence
2022-04-01 – 2022-06-3068400000 USD2023-07-27 · 20:34:28.000ZOpen filing evidence
2022-01-01 – 2022-06-30138300000 USD2023-07-27 · 20:34:28.000ZOpen filing evidence
2022-01-01 – 2022-03-3169900000 USD2023-04-28 · 19:36:34.000ZOpen filing evidence
2021-01-01 – 2021-12-31284300000 USD2024-02-16 · 17:38:45.000ZOpen filing evidence
2021-07-01 – 2021-09-3071500000 USD2022-10-28 · 20:26:57.000ZOpen filing evidence
2021-01-01 – 2021-09-30212600000 USD2022-10-28 · 20:26:57.000ZOpen filing evidence
2021-04-01 – 2021-06-3071700000 USD2022-07-29 · 19:48:17.000ZOpen filing evidence
2021-01-01 – 2021-06-30141100000 USD2022-07-29 · 19:48:17.000ZOpen filing evidence
2021-01-01 – 2021-03-3169400000 USD2022-04-28 · 20:08:20.000ZOpen filing evidence
2020-01-01 – 2020-12-31258100000 USD2023-02-16 · 19:46:33.000ZOpen filing evidence
2020-07-01 – 2020-09-3067100000 USD2021-10-29 · 18:48:33.000ZOpen filing evidence
2020-01-01 – 2020-09-30188400000 USD2021-10-29 · 18:48:33.000ZOpen filing evidence
2020-04-01 – 2020-06-3061200000 USD2021-07-30 · 19:09:03.000ZOpen filing evidence
2020-01-01 – 2020-06-30121300000 USD2021-07-30 · 19:09:03.000ZOpen filing evidence
2020-01-01 – 2020-03-3160100000 USD2021-04-29 · 18:35:47.000ZOpen filing evidence
2019-01-01 – 2019-12-31227700000 USD2022-02-17 · 21:15:31.000ZOpen filing evidence
2019-07-01 – 2019-09-3058000000 USD2020-10-30 · 21:10:14.000ZOpen filing evidence
2019-01-01 – 2019-09-30167900000 USD2020-10-30 · 21:10:14.000ZOpen filing evidence
2019-04-01 – 2019-06-3055700000 USD2020-08-03 · 20:29:15.000ZOpen filing evidence
2019-01-01 – 2019-06-30109900000 USD2020-08-03 · 20:29:15.000ZOpen filing evidence
2019-01-01 – 2019-03-3154200000 USD2020-05-05 · 17:54:56.000ZOpen filing evidence
2018-01-01 – 2018-12-31217500000 USD2021-02-18 · 17:06:12.000ZOpen filing evidence
2018-07-01 – 2018-09-3054100000 USD2019-10-25 · 19:38:40.000ZOpen filing evidence
2018-01-01 – 2018-09-30162900000 USD2019-10-25 · 19:38:40.000ZOpen filing evidence
2018-04-01 – 2018-06-3054400000 USD2019-07-29 · 18:29:28.000ZOpen filing evidence
2018-01-01 – 2018-06-30108800000 USD2019-07-29 · 18:29:28.000ZOpen filing evidence
2018-01-01 – 2018-03-3154400000 USD2019-04-30 · 20:09:02.000ZOpen filing evidence
2017-01-01 – 2017-12-31197100000 USD2020-02-19 · 22:05:14.000ZOpen filing evidence
2017-07-01 – 2017-09-3052300000 USD2018-10-26 · 18:38:28.000ZOpen filing evidence
2017-01-01 – 2017-09-30144500000 USD2018-10-26 · 18:38:28.000ZOpen filing evidence
2017-04-01 – 2017-06-3047800000 USD20180727Open filing evidence
2017-01-01 – 2017-06-3092200000 USD20180727Open filing evidence
2017-01-01 – 2017-03-3144400000 USD20180501Open filing evidence
2016-01-01 – 2016-12-31189000000 USD2019-02-25 · 19:53:14.000ZOpen filing evidence
2016-07-01 – 2016-09-3048200000 USD20171027Open filing evidence
2016-01-01 – 2016-09-30141600000 USD20171027Open filing evidence
2016-04-01 – 2016-06-3046900000 USD20170728Open filing evidence
2016-01-01 – 2016-06-3093400000 USD20170728Open filing evidence
2016-01-01 – 2016-03-3146500000 USD20170505Open filing evidence
2015-01-01 – 2015-12-31180400000 USD20180221Open filing evidence
2015-07-01 – 2015-09-3045800000 USD20161031Open filing evidence
2015-01-01 – 2015-09-30133900000 USD20161031Open filing evidence
2015-04-01 – 2015-06-3044100000 USD20160729Open filing evidence
2015-01-01 – 2015-06-3088100000 USD20160729Open filing evidence
2015-01-01 – 2015-03-3144000000 USD20160425Open filing evidence
2014-01-01 – 2014-12-31198900000 USD20170222Open filing evidence
2014-07-01 – 2014-09-3050200000 USD20151030Open filing evidence
2014-01-01 – 2014-09-30149500000 USD20151030Open filing evidence
2014-04-01 – 2014-06-3050100000 USD20150731Open filing evidence
2014-01-01 – 2014-06-3099300000 USD20150731Open filing evidence
2014-01-01 – 2014-03-3149200000 USD20150428Open filing evidence
2013-01-01 – 2013-12-31189000000 USD20160224Open filing evidence
2013-07-01 – 2013-09-3047500000 USD20141106Open filing evidence
2013-01-01 – 2013-09-30138000000 USD20141106Open filing evidence
2013-04-01 – 2013-06-3045300000 USD20140731Open filing evidence
2013-01-01 – 2013-06-3090500000 USD20140731Open filing evidence
2013-01-01 – 2013-03-3145200000 USD20140429Open filing evidence
2012-01-01 – 2012-12-31167700000 USD20150225Open filing evidence
2012-07-01 – 2012-09-3041500000 USD20131030Open filing evidence
2012-01-01 – 2012-09-30123000000 USD20131030Open filing evidence
2012-04-01 – 2012-06-3040600000 USD20130725Open filing evidence
2012-01-01 – 2012-06-3081500000 USD20130725Open filing evidence
2012-01-01 – 2012-03-3140900000 USD20130501Open filing evidence
2011-01-01 – 2011-12-31168300000 USD20140225Open filing evidence
2010-01-01 – 2010-12-31147500000 USD20130301Open filing evidence

Rail

Statement Business Segments

Source dimensions us-gaap:StatementBusinessSegmentsAxis=gmt:RailMember
PeriodValueUnitFiledEvidence
2012-07-01 – 2012-09-30245200000 USD20121024Open filing evidence
2012-01-01 – 2012-09-30736000000 USD20121024Open filing evidence
2012-04-01 – 2012-06-30246400000 USD20120725Open filing evidence
2012-01-01 – 2012-06-30490800000 USD20120725Open filing evidence
2012-01-01 – 2012-03-31244400000 USD20120501Open filing evidence
2011-01-01 – 2011-12-31966000000 USD20120307Open filing evidence
2011-07-01 – 2011-09-30242600000 USD20121024Open filing evidence
2011-01-01 – 2011-09-30717100000 USD20121024Open filing evidence
2011-04-01 – 2011-06-30237700000 USD20120725Open filing evidence
2011-01-01 – 2011-06-30474500000 USD20120725Open filing evidence
2011-01-01 – 2011-03-31236800000 USD20120501Open filing evidence
2010-01-01 – 2010-12-31903000000 USD20120307Open filing evidence
2010-07-01 – 2010-09-30221600000 USD20111028Open filing evidence
2010-01-01 – 2010-09-30676100000 USD20111028Open filing evidence
2010-04-01 – 2010-06-30217800000 USD20110728Open filing evidence
2010-01-01 – 2010-06-30454500000 USD20110728Open filing evidence
2009-01-01 – 2009-12-31916400000 USD20120307Open filing evidence

Rail North America

Statement Business Segments

Source dimensions us-gaap:StatementBusinessSegmentsAxis=gmt:RailNorthAmericaMember
PeriodValueUnitFiledEvidence
2026-07-01 – 2026-09-30448000000 USD2026-10-30 · 17:20:33.000ZOpen filing evidence
2026-01-01 – 2026-09-301319700000 USD2026-10-30 · 17:20:33.000ZOpen filing evidence
2026-04-01 – 2026-06-30435000000 USD2026-07-31 · 17:54:54.000ZOpen filing evidence
2026-01-01 – 2026-06-30871700000 USD2026-07-31 · 17:54:54.000ZOpen filing evidence
2026-01-01 – 2026-03-31436700000 USD2026-05-07 · 20:23:03.000ZOpen filing evidence
2025-01-01 – 2025-12-311186400000 USD2026-02-19 · 21:22:36.000ZOpen filing evidence
2025-07-01 – 2025-09-30296500000 USD2026-10-30 · 17:20:33.000ZOpen filing evidence
2025-01-01 – 2025-09-30885500000 USD2026-10-30 · 17:20:33.000ZOpen filing evidence
2025-04-01 – 2025-06-30295700000 USD2026-07-31 · 17:54:54.000ZOpen filing evidence
2025-01-01 – 2025-06-30589000000 USD2026-07-31 · 17:54:54.000ZOpen filing evidence
2025-01-01 – 2025-03-31293300000 USD2026-05-07 · 20:23:03.000ZOpen filing evidence
2024-01-01 – 2024-12-311099000000 USD2026-02-19 · 21:22:36.000ZOpen filing evidence
2024-07-01 – 2024-09-30278500000 USD2025-10-30 · 20:49:48.000ZOpen filing evidence
2024-01-01 – 2024-09-30813900000 USD2025-10-30 · 20:49:48.000ZOpen filing evidence
2024-04-01 – 2024-06-30270400000 USD2025-07-29 · 18:27:19.000ZOpen filing evidence
2024-01-01 – 2024-06-30535400000 USD2025-07-29 · 18:27:19.000ZOpen filing evidence
2024-01-01 – 2024-03-31265000000 USD2025-04-25 · 17:11:36.000ZOpen filing evidence
2023-01-01 – 2023-12-31982700000 USD2026-02-19 · 21:22:36.000ZOpen filing evidence
2023-07-01 – 2023-09-30247900000 USD2024-10-24 · 20:23:02.000ZOpen filing evidence
2023-01-01 – 2023-09-30727200000 USD2024-10-24 · 20:23:02.000ZOpen filing evidence
2023-04-01 – 2023-06-30240400000 USD2024-07-25 · 20:16:17.000ZOpen filing evidence
2023-01-01 – 2023-06-30479300000 USD2024-07-25 · 20:16:17.000ZOpen filing evidence
2023-01-01 – 2023-03-31238900000 USD2024-04-26 · 15:09:50.000ZOpen filing evidence
2022-01-01 – 2022-12-31908000000 USD2025-02-19 · 21:19:43.000ZOpen filing evidence
2022-07-01 – 2022-09-30231300000 USD2023-10-26 · 19:02:11.000ZOpen filing evidence
2022-01-01 – 2022-09-30676800000 USD2023-10-26 · 19:02:11.000ZOpen filing evidence
2022-04-01 – 2022-06-30221800000 USD2023-07-27 · 20:34:28.000ZOpen filing evidence
2022-01-01 – 2022-06-30445500000 USD2023-07-27 · 20:34:28.000ZOpen filing evidence
2022-01-01 – 2022-03-31223700000 USD2023-04-28 · 19:36:34.000ZOpen filing evidence
2021-01-01 – 2021-12-31891700000 USD2024-02-16 · 17:38:45.000ZOpen filing evidence
2021-07-01 – 2021-09-30219800000 USD2022-10-28 · 20:26:57.000ZOpen filing evidence
2021-01-01 – 2021-09-30667800000 USD2022-10-28 · 20:26:57.000ZOpen filing evidence
2021-04-01 – 2021-06-30223400000 USD2022-07-29 · 19:48:17.000ZOpen filing evidence
2021-01-01 – 2021-06-30448000000 USD2022-07-29 · 19:48:17.000ZOpen filing evidence
2021-01-01 – 2021-03-31224600000 USD2022-04-28 · 20:08:20.000ZOpen filing evidence
2020-01-01 – 2020-12-31934100000 USD2023-02-16 · 19:46:33.000ZOpen filing evidence
2020-07-01 – 2020-09-30232100000 USD2021-10-29 · 18:48:33.000ZOpen filing evidence
2020-01-01 – 2020-09-30703300000 USD2021-10-29 · 18:48:33.000ZOpen filing evidence
2020-04-01 – 2020-06-30235500000 USD2021-07-30 · 19:09:03.000ZOpen filing evidence
2020-01-01 – 2020-06-30471200000 USD2021-07-30 · 19:09:03.000ZOpen filing evidence
2020-01-01 – 2020-03-31235700000 USD2021-04-29 · 18:35:47.000ZOpen filing evidence
2019-01-01 – 2019-12-31964500000 USD2022-02-17 · 21:15:31.000ZOpen filing evidence
2019-07-01 – 2019-09-30238500000 USD2020-10-30 · 21:10:14.000ZOpen filing evidence
2019-01-01 – 2019-09-30728000000 USD2020-10-30 · 21:10:14.000ZOpen filing evidence
2019-04-01 – 2019-06-30241200000 USD2020-08-03 · 20:29:15.000ZOpen filing evidence
2019-01-01 – 2019-06-30489500000 USD2020-08-03 · 20:29:15.000ZOpen filing evidence
2019-01-01 – 2019-03-31248300000 USD2020-05-05 · 17:54:56.000ZOpen filing evidence
2018-01-01 – 2018-12-31941500000 USD2021-02-18 · 17:06:12.000ZOpen filing evidence
2018-07-01 – 2018-09-30233400000 USD2019-10-25 · 19:38:40.000ZOpen filing evidence
2018-01-01 – 2018-09-30706400000 USD2019-10-25 · 19:38:40.000ZOpen filing evidence
2018-04-01 – 2018-06-30237700000 USD2019-07-29 · 18:29:28.000ZOpen filing evidence
2018-01-01 – 2018-06-30473000000 USD2019-07-29 · 18:29:28.000ZOpen filing evidence
2018-01-01 – 2018-03-31235300000 USD2019-04-30 · 20:09:02.000ZOpen filing evidence
2017-01-01 – 2017-12-31977400000 USD2020-02-19 · 22:05:14.000ZOpen filing evidence
2017-07-01 – 2017-09-30242400000 USD2018-10-26 · 18:38:28.000ZOpen filing evidence
2017-01-01 – 2017-09-30737400000 USD2018-10-26 · 18:38:28.000ZOpen filing evidence
2017-04-01 – 2017-06-30243000000 USD20180727Open filing evidence
2017-01-01 – 2017-06-30495000000 USD20180727Open filing evidence
2017-01-01 – 2017-03-31252000000 USD20180501Open filing evidence
2016-01-01 – 2016-12-311018500000 USD2019-02-25 · 19:53:14.000ZOpen filing evidence
2016-07-01 – 2016-09-30250300000 USD20171027Open filing evidence
2016-01-01 – 2016-09-30766500000 USD20171027Open filing evidence
2016-04-01 – 2016-06-30251800000 USD20170728Open filing evidence
2016-01-01 – 2016-06-30516200000 USD20170728Open filing evidence
2016-01-01 – 2016-03-31264400000 USD20170505Open filing evidence
2015-01-01 – 2015-12-311006800000 USD20180221Open filing evidence
2015-07-01 – 2015-09-30255200000 USD20161031Open filing evidence
2015-01-01 – 2015-09-30746100000 USD20161031Open filing evidence
2015-04-01 – 2015-06-30247700000 USD20160729Open filing evidence
2015-01-01 – 2015-06-30490900000 USD20160729Open filing evidence
2015-01-01 – 2015-03-31243200000 USD20160425Open filing evidence
2014-01-01 – 2014-12-31927500000 USD20170222Open filing evidence
2014-07-01 – 2014-09-30238300000 USD20151030Open filing evidence
2014-01-01 – 2014-09-30682100000 USD20151030Open filing evidence
2014-04-01 – 2014-06-30234300000 USD20150731Open filing evidence
2014-01-01 – 2014-06-30443800000 USD20150731Open filing evidence
2014-01-01 – 2014-03-31209500000 USD20150428Open filing evidence
2013-01-01 – 2013-12-31817100000 USD20160224Open filing evidence
2013-07-01 – 2013-09-30206500000 USD20141106Open filing evidence
2013-01-01 – 2013-09-30605200000 USD20141106Open filing evidence
2013-04-01 – 2013-06-30201100000 USD20140731Open filing evidence
2013-01-01 – 2013-06-30398700000 USD20140731Open filing evidence
2013-01-01 – 2013-03-31197600000 USD20140429Open filing evidence
2012-01-01 – 2012-12-31765300000 USD20150225Open filing evidence
2012-07-01 – 2012-09-30193400000 USD20131030Open filing evidence
2012-01-01 – 2012-09-30568500000 USD20131030Open filing evidence
2012-04-01 – 2012-06-30188700000 USD20130725Open filing evidence
2012-01-01 – 2012-06-30375100000 USD20130725Open filing evidence
2012-01-01 – 2012-03-31186400000 USD20130501Open filing evidence
2011-01-01 – 2011-12-31742400000 USD20140225Open filing evidence
2010-01-01 – 2010-12-31720000000 USD20130301Open filing evidence

Specialty

Statement Business Segments

Source dimensions us-gaap:StatementBusinessSegmentsAxis=gmt:SpecialtyMember
PeriodValueUnitFiledEvidence
2011-07-01 – 2011-09-3023700000 USD20111028Open filing evidence
2011-01-01 – 2011-09-3057200000 USD20111028Open filing evidence
2011-04-01 – 2011-06-3017600000 USD20110728Open filing evidence
2011-01-01 – 2011-06-3033500000 USD20110728Open filing evidence
2010-07-01 – 2010-09-3021000000 USD20111028Open filing evidence
2010-01-01 – 2010-09-3054700000 USD20111028Open filing evidence
2010-04-01 – 2010-06-3016300000 USD20110728Open filing evidence
2010-01-01 – 2010-06-3033700000 USD20110728Open filing evidence