Fundies. English
Segment disclosures
Company overviewWESTMORELAND COAL Co
Each reported dimension combination stays separate. Revenue and operating income are shown as reported, with their dates and sources.
Revenue · Reported segment facts
43 dimension combinations 460 retained observations 31 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.
Buckingham Coal Company LLC · Coal U.S.Segment
Business Acquisition · Statement Business Segments
Source dimensions
us-gaap:BusinessAcquisitionAxis=wlb:BuckinghamCoalCompanyLLCMember;us-gaap:StatementBusinessSegmentsAxis=wlb:CoalU.S.SegmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2016-07-01 – 2016-09-30 | 51700000 | USD | 2016-11-01 · 21:27:06.000Z | Open filing evidence |
| 2016-01-01 – 2016-09-30 | 128300000 | USD | 2016-11-01 · 21:27:06.000Z | Open filing evidence |
| 2016-04-01 – 2016-06-30 | 50000000 | USD | 2016-08-02 · 15:56:36.000Z | Open filing evidence |
| 2016-01-01 – 2016-06-30 | 76600000 | USD | 2016-08-02 · 15:56:36.000Z | Open filing evidence |
| 2016-01-01 – 2016-03-31 | 26600000 | USD | 2016-05-10 · 16:12:36.000Z | Open filing evidence |
| 2015-07-01 – 2015-09-30 | 15900000 | USD | 2015-11-05 · 01:53:26.000Z | Open filing evidence |
| 2015-01-01 – 2015-09-30 | 61400000 | USD | 2015-11-05 · 01:53:26.000Z | Open filing evidence |
| 2015-04-01 – 2015-06-30 | 15400000 | USD | 2015-07-30 · 22:38:10.000Z | Open filing evidence |
| 2015-01-01 – 2015-06-30 | 45500000 | USD | 2015-07-30 · 22:38:10.000Z | Open filing evidence |
| 2015-01-01 – 2015-03-31 | 30100000 | USD | 2015-04-28 · 18:04:59.000Z | Open filing evidence |
San Juan Coal Company · Coal Segment
Business Acquisition · Statement Business Segments
Source dimensions
us-gaap:BusinessAcquisitionAxis=wlb:SanJuanCoalCompanyMember;us-gaap:StatementBusinessSegmentsAxis=wlb:CoalSegmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2017-01-01 – 2017-12-31 | 206100000 | USD | 2018-04-02 · 12:20:18.000Z | Open filing evidence |
| 2016-01-01 – 2016-12-31 | 184400000 | USD | 2018-04-02 · 12:20:18.000Z | Open filing evidence |
| 2016-04-01 – 2016-06-30 | 50000000 | USD | 2017-08-04 · 17:46:12.000Z | Open filing evidence |
| 2016-01-01 – 2016-06-30 | 76700000 | USD | 2017-08-04 · 17:46:12.000Z | Open filing evidence |
| 2016-01-01 – 2016-03-31 | 26700000 | USD | 2017-05-15 · 17:13:59.000Z | Open filing evidence |
Intersegment Elimination · Coal Westmoreland Resource Partners LP
Consolidation Items · Statement Business Segments
Source dimensions
us-gaap:ConsolidationItemsAxis=us-gaap:IntersegmentEliminationMember;us-gaap:StatementBusinessSegmentsAxis=wlb:CoalWestmorelandResourcePartnersLPMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2016-07-01 – 2016-09-30 | 6200000 | USD | 2016-11-01 · 21:27:06.000Z | Open filing evidence |
| 2016-01-01 – 2016-09-30 | 20500000 | USD | 2016-11-01 · 21:27:06.000Z | Open filing evidence |
| 2016-04-01 – 2016-06-30 | 6400000 | USD | 2016-08-02 · 15:56:36.000Z | Open filing evidence |
| 2016-01-01 – 2016-06-30 | 14300000 | USD | 2016-08-02 · 15:56:36.000Z | Open filing evidence |
| 2016-01-01 – 2016-03-31 | 7900000 | USD | 2016-05-10 · 16:12:36.000Z | Open filing evidence |
| 2015-07-01 – 2015-09-30 | 5900000 | USD | 2016-11-01 · 21:27:06.000Z | Open filing evidence |
| 2015-01-01 – 2015-09-30 | 24600000 | USD | 2016-11-01 · 21:27:06.000Z | Open filing evidence |
| 2015-04-01 – 2015-06-30 | 6600000 | USD | 2016-08-02 · 15:56:36.000Z | Open filing evidence |
| 2015-01-01 – 2015-06-30 | 21100000 | USD | 2016-08-02 · 15:56:36.000Z | Open filing evidence |
| 2015-01-01 – 2015-03-31 | 16400000 | USD | 2016-05-10 · 16:12:36.000Z | Open filing evidence |
Customera · Coal Canada Segment
Major Customers · Statement Business Segments
Source dimensions
us-gaap:MajorCustomersAxis=wlb:CustomeraMember;us-gaap:StatementBusinessSegmentsAxis=wlb:CoalCanadaSegmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2014-01-01 – 2014-12-31 | 144863000 | USD | 2015-03-06 · 22:11:07.000Z | Open filing evidence |
| 2013-01-01 – 2013-12-31 | 0 | USD | 2015-03-06 · 22:11:07.000Z | Open filing evidence |
| 2012-01-01 – 2012-12-31 | 0 | USD | 2015-03-06 · 22:11:07.000Z | Open filing evidence |
Customera · Coal Segment
Major Customers · Statement Business Segments
Source dimensions
us-gaap:MajorCustomersAxis=wlb:CustomeraMember;us-gaap:StatementBusinessSegmentsAxis=wlb:CoalSegmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2017-01-01 – 2017-12-31 | 134791000 | USD | 2018-04-02 · 12:20:18.000Z | Open filing evidence |
| 2016-01-01 – 2016-12-31 | 207290000 | USD | 2018-04-02 · 12:20:18.000Z | Open filing evidence |
| 2015-01-01 – 2015-12-31 | 234840000 Restated | USD | 2018-04-02 · 12:20:18.000Z | Open filing evidence |
| 2014-01-01 – 2014-12-31 | 167882000 Restated | USD | 2017-03-29 · 01:01:22.000Z | Open filing evidence |
| 2013-01-01 – 2013-12-31 | 0 Restated | USD | 2016-03-12 · 02:03:36.000Z | Open filing evidence |
| 2012-01-01 – 2012-12-31 | 126982000 | USD | 2014-02-28 · 20:06:25.000Z | Open filing evidence |
| 2011-01-01 – 2011-12-31 | 120243000 | USD | 2014-02-28 · 20:06:25.000Z | Open filing evidence |
| 2010-01-01 – 2010-12-31 | 119633000 | USD | 2013-03-12 · 20:56:34.000Z | Open filing evidence |
Customer B · Coal Canada Segment
Major Customers · Statement Business Segments
Source dimensions
us-gaap:MajorCustomersAxis=wlb:CustomerBMember;us-gaap:StatementBusinessSegmentsAxis=wlb:CoalCanadaSegmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2015-01-01 – 2015-12-31 | 180660000 | USD | 2016-03-12 · 02:03:36.000Z | Open filing evidence |
| 2014-01-01 – 2014-12-31 | 144863000 | USD | 2016-03-12 · 02:03:36.000Z | Open filing evidence |
| 2013-01-01 – 2013-12-31 | 0 | USD | 2016-03-12 · 02:03:36.000Z | Open filing evidence |
Customer B · Coal Segment
Major Customers · Statement Business Segments
Source dimensions
us-gaap:MajorCustomersAxis=wlb:CustomerBMember;us-gaap:StatementBusinessSegmentsAxis=wlb:CoalSegmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2017-01-01 – 2017-12-31 | 206148000 | USD | 2018-04-02 · 12:20:18.000Z | Open filing evidence |
| 2016-01-01 – 2016-12-31 | 184364000 | USD | 2018-04-02 · 12:20:18.000Z | Open filing evidence |
| 2015-01-01 – 2015-12-31 | 0 | USD | 2018-04-02 · 12:20:18.000Z | Open filing evidence |
| 2014-01-01 – 2014-12-31 | 0 Restated | USD | 2017-03-29 · 01:01:22.000Z | Open filing evidence |
| 2013-01-01 – 2013-12-31 | 117545000 Restated | USD | 2015-03-06 · 22:11:07.000Z | Open filing evidence |
| 2012-01-01 – 2012-12-31 | 126982000 Restated | USD | 2015-03-06 · 22:11:07.000Z | Open filing evidence |
| 2011-01-01 – 2011-12-31 | 0 | USD | 2014-02-28 · 20:06:25.000Z | Open filing evidence |
| 2010-01-01 – 2010-12-31 | 0 | USD | 2013-03-12 · 20:56:34.000Z | Open filing evidence |
Customer C · Coal Canada Segment
Major Customers · Statement Business Segments
Source dimensions
us-gaap:MajorCustomersAxis=wlb:CustomerCMember;us-gaap:StatementBusinessSegmentsAxis=wlb:CoalCanadaSegmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2017-01-01 – 2017-12-31 | 191363000 | USD | 2018-04-02 · 12:20:18.000Z | Open filing evidence |
| 2016-01-01 – 2016-12-31 | 174659000 | USD | 2018-04-02 · 12:20:18.000Z | Open filing evidence |
| 2015-01-01 – 2015-12-31 | 180660000 | USD | 2018-04-02 · 12:20:18.000Z | Open filing evidence |
| 2014-01-01 – 2014-12-31 | 144863000 | USD | 2017-03-29 · 01:01:22.000Z | Open filing evidence |
Customer C · Coal Segment
Major Customers · Statement Business Segments
Source dimensions
us-gaap:MajorCustomersAxis=wlb:CustomerCMember;us-gaap:StatementBusinessSegmentsAxis=wlb:CoalSegmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2015-01-01 – 2015-12-31 | 153585000 | USD | 2016-03-12 · 02:03:36.000Z | Open filing evidence |
| 2014-01-01 – 2014-12-31 | 128104000 Restated | USD | 2016-03-12 · 02:03:36.000Z | Open filing evidence |
| 2013-01-01 – 2013-12-31 | 117545000 Restated | USD | 2016-03-12 · 02:03:36.000Z | Open filing evidence |
| 2012-01-01 – 2012-12-31 | 96718000 Restated | USD | 2015-03-06 · 22:11:07.000Z | Open filing evidence |
| 2011-01-01 – 2011-12-31 | 81353000 | USD | 2014-02-28 · 20:06:25.000Z | Open filing evidence |
| 2010-01-01 – 2010-12-31 | 80493000 | USD | 2013-03-12 · 20:56:34.000Z | Open filing evidence |
Customer D · Coal Segment
Major Customers · Statement Business Segments
Source dimensions
us-gaap:MajorCustomersAxis=wlb:CustomerDMember;us-gaap:StatementBusinessSegmentsAxis=wlb:CoalSegmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2017-01-01 – 2017-12-31 | 139063000 | USD | 2018-04-02 · 12:20:18.000Z | Open filing evidence |
| 2016-01-01 – 2016-12-31 | 146503000 | USD | 2018-04-02 · 12:20:18.000Z | Open filing evidence |
| 2015-01-01 – 2015-12-31 | 153585000 Restated | USD | 2018-04-02 · 12:20:18.000Z | Open filing evidence |
| 2014-01-01 – 2014-12-31 | 128104000 Restated | USD | 2017-03-29 · 01:01:22.000Z | Open filing evidence |
| 2013-01-01 – 2013-12-31 | 112061000 Restated | USD | 2016-03-12 · 02:03:36.000Z | Open filing evidence |
| 2012-01-01 – 2012-12-31 | 81981000 | USD | 2015-03-06 · 22:11:07.000Z | Open filing evidence |
Customer D · Power
Major Customers · Statement Business Segments
Source dimensions
us-gaap:MajorCustomersAxis=wlb:CustomerDMember;us-gaap:StatementBusinessSegmentsAxis=wlb:PowerMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2013-01-01 – 2013-12-31 | 86390000 | USD | 2014-02-28 · 20:06:25.000Z | Open filing evidence |
| 2012-01-01 – 2012-12-31 | 80109000 | USD | 2014-02-28 · 20:06:25.000Z | Open filing evidence |
| 2011-01-01 – 2011-12-31 | 85639000 | USD | 2014-02-28 · 20:06:25.000Z | Open filing evidence |
| 2010-01-01 – 2010-12-31 | 86926000 | USD | 2013-03-12 · 20:56:34.000Z | Open filing evidence |
Customer E · Coal Segment
Major Customers · Statement Business Segments
Source dimensions
us-gaap:MajorCustomersAxis=wlb:CustomerEMember;us-gaap:StatementBusinessSegmentsAxis=wlb:CoalSegmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2015-01-01 – 2015-12-31 | 97449000 | USD | 2016-03-12 · 02:03:36.000Z | Open filing evidence |
| 2014-01-01 – 2014-12-31 | 100234000 | USD | 2016-03-12 · 02:03:36.000Z | Open filing evidence |
| 2013-01-01 – 2013-12-31 | 89266000 Restated | USD | 2016-03-12 · 02:03:36.000Z | Open filing evidence |
| 2012-01-01 – 2012-12-31 | 66128000 | USD | 2014-02-28 · 20:06:25.000Z | Open filing evidence |
| 2011-01-01 – 2011-12-31 | 65224000 | USD | 2014-02-28 · 20:06:25.000Z | Open filing evidence |
| 2010-01-01 – 2010-12-31 | 64968000 | USD | 2013-03-12 · 20:56:34.000Z | Open filing evidence |
Customer E · Power
Major Customers · Statement Business Segments
Source dimensions
us-gaap:MajorCustomersAxis=wlb:CustomerEMember;us-gaap:StatementBusinessSegmentsAxis=wlb:PowerMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2014-01-01 – 2014-12-31 | 85254000 | USD | 2015-03-06 · 22:11:07.000Z | Open filing evidence |
| 2013-01-01 – 2013-12-31 | 86390000 | USD | 2015-03-06 · 22:11:07.000Z | Open filing evidence |
| 2012-01-01 – 2012-12-31 | 80109000 | USD | 2015-03-06 · 22:11:07.000Z | Open filing evidence |
Customer F · Coal Segment
Major Customers · Statement Business Segments
Source dimensions
us-gaap:MajorCustomersAxis=wlb:CustomerFMember;us-gaap:StatementBusinessSegmentsAxis=wlb:CoalSegmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2014-01-01 – 2014-12-31 | 79505000 | USD | 2015-03-06 · 22:11:07.000Z | Open filing evidence |
| 2013-01-01 – 2013-12-31 | 85929000 Restated | USD | 2015-03-06 · 22:11:07.000Z | Open filing evidence |
| 2012-01-01 – 2012-12-31 | 66128000 Restated | USD | 2015-03-06 · 22:11:07.000Z | Open filing evidence |
| 2011-01-01 – 2011-12-31 | 52835000 | USD | 2014-02-28 · 20:06:25.000Z | Open filing evidence |
| 2010-01-01 – 2010-12-31 | 47286000 | USD | 2013-03-12 · 20:56:34.000Z | Open filing evidence |
Customer F · Power
Major Customers · Statement Business Segments
Source dimensions
us-gaap:MajorCustomersAxis=wlb:CustomerFMember;us-gaap:StatementBusinessSegmentsAxis=wlb:PowerMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2015-01-01 – 2015-12-31 | 84423000 | USD | 2016-03-12 · 02:03:36.000Z | Open filing evidence |
| 2014-01-01 – 2014-12-31 | 85254000 | USD | 2016-03-12 · 02:03:36.000Z | Open filing evidence |
| 2013-01-01 – 2013-12-31 | 86390000 | USD | 2016-03-12 · 02:03:36.000Z | Open filing evidence |
Customer G · Coal Segment
Major Customers · Statement Business Segments
Source dimensions
us-gaap:MajorCustomersAxis=wlb:CustomerGMember;us-gaap:StatementBusinessSegmentsAxis=wlb:CoalSegmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2015-01-01 – 2015-12-31 | 67475000 | USD | 2016-03-12 · 02:03:36.000Z | Open filing evidence |
| 2014-01-01 – 2014-12-31 | 79505000 Restated | USD | 2016-03-12 · 02:03:36.000Z | Open filing evidence |
| 2013-01-01 – 2013-12-31 | 85929000 Restated | USD | 2016-03-12 · 02:03:36.000Z | Open filing evidence |
| 2012-01-01 – 2012-12-31 | 26525000 | USD | 2015-03-06 · 22:11:07.000Z | Open filing evidence |
Domestic Coal Sales · Coal Canada Segment
Product Or Service · Statement Business Segments
Source dimensions
us-gaap:ProductOrServiceAxis=wlb:DomesticCoalSalesMember;us-gaap:StatementBusinessSegmentsAxis=wlb:CoalCanadaSegmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2018-07-01 – 2018-09-30 | 74457000 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2018-01-01 – 2018-09-30 | 219427000 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2018-04-01 – 2018-06-30 | 68232000 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2018-01-01 – 2018-06-30 | 148500000 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2018-01-01 – 2018-03-31 | 80267000 | USD | 2018-05-04 · 20:39:53.000Z | Open filing evidence |
| 2017-07-01 – 2017-09-30 | 83649000 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2017-01-01 – 2017-09-30 | 225943000 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2017-04-01 – 2017-06-30 | 67468000 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2017-01-01 – 2017-06-30 | 143395000 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
Domestic Coal Sales · Coal U.S.Segment
Product Or Service · Statement Business Segments
Source dimensions
us-gaap:ProductOrServiceAxis=wlb:DomesticCoalSalesMember;us-gaap:StatementBusinessSegmentsAxis=wlb:CoalU.S.SegmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2018-07-01 – 2018-09-30 | 119905000 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2018-01-01 – 2018-09-30 | 337407000 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2018-04-01 – 2018-06-30 | 101099000 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2018-01-01 – 2018-06-30 | 217501000 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2018-01-01 – 2018-03-31 | 116402000 | USD | 2018-05-04 · 20:39:53.000Z | Open filing evidence |
| 2017-07-01 – 2017-09-30 | 149212000 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2017-01-01 – 2017-09-30 | 433067000 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2017-04-01 – 2017-06-30 | 134558000 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2017-01-01 – 2017-06-30 | 272884000 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
Domestic Coal Sales · Coal Westmoreland Resource Partners LP
Product Or Service · Statement Business Segments
Source dimensions
us-gaap:ProductOrServiceAxis=wlb:DomesticCoalSalesMember;us-gaap:StatementBusinessSegmentsAxis=wlb:CoalWestmorelandResourcePartnersLPMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2018-07-01 – 2018-09-30 | 62731000 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2018-01-01 – 2018-09-30 | 189472000 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2018-04-01 – 2018-06-30 | 60032000 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2018-01-01 – 2018-06-30 | 126741000 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2018-01-01 – 2018-03-31 | 66709000 | USD | 2018-05-04 · 20:39:53.000Z | Open filing evidence |
| 2017-07-01 – 2017-09-30 | 84888000 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2017-01-01 – 2017-09-30 | 237812000 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2017-04-01 – 2017-06-30 | 79817000 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2017-01-01 – 2017-06-30 | 152925000 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
Domestic Coal Sales · Power
Product Or Service · Statement Business Segments
Source dimensions
us-gaap:ProductOrServiceAxis=wlb:DomesticCoalSalesMember;us-gaap:StatementBusinessSegmentsAxis=wlb:PowerMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2017-07-01 – 2017-09-30 | 0 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2017-01-01 – 2017-09-30 | 0 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2017-04-01 – 2017-06-30 | 0 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2017-01-01 – 2017-06-30 | 0 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
Export Coal Sales · Coal Canada Segment
Product Or Service · Statement Business Segments
Source dimensions
us-gaap:ProductOrServiceAxis=wlb:ExportCoalSalesMember;us-gaap:StatementBusinessSegmentsAxis=wlb:CoalCanadaSegmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2018-07-01 – 2018-09-30 | 72511000 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2018-01-01 – 2018-09-30 | 145311000 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2018-04-01 – 2018-06-30 | 40684000 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2018-01-01 – 2018-06-30 | 69271000 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2018-01-01 – 2018-03-31 | 28588000 | USD | 2018-05-04 · 20:39:53.000Z | Open filing evidence |
| 2017-07-01 – 2017-09-30 | 30672000 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2017-01-01 – 2017-09-30 | 87936000 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2017-04-01 – 2017-06-30 | 21383000 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2017-01-01 – 2017-06-30 | 56163000 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
Export Coal Sales · Coal U.S.Segment
Product Or Service · Statement Business Segments
Source dimensions
us-gaap:ProductOrServiceAxis=wlb:ExportCoalSalesMember;us-gaap:StatementBusinessSegmentsAxis=wlb:CoalU.S.SegmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2018-07-01 – 2018-09-30 | 0 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2018-01-01 – 2018-09-30 | 0 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2018-04-01 – 2018-06-30 | 0 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2018-01-01 – 2018-06-30 | 0 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2018-01-01 – 2018-03-31 | 0 | USD | 2018-05-04 · 20:39:53.000Z | Open filing evidence |
| 2017-07-01 – 2017-09-30 | 0 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2017-01-01 – 2017-09-30 | 0 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2017-04-01 – 2017-06-30 | 0 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2017-01-01 – 2017-06-30 | 0 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
Export Coal Sales · Coal Westmoreland Resource Partners LP
Product Or Service · Statement Business Segments
Source dimensions
us-gaap:ProductOrServiceAxis=wlb:ExportCoalSalesMember;us-gaap:StatementBusinessSegmentsAxis=wlb:CoalWestmorelandResourcePartnersLPMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2018-07-01 – 2018-09-30 | 0 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2018-01-01 – 2018-09-30 | 0 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2018-04-01 – 2018-06-30 | 0 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2018-01-01 – 2018-06-30 | 0 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2018-01-01 – 2018-03-31 | 0 | USD | 2018-05-04 · 20:39:53.000Z | Open filing evidence |
| 2017-07-01 – 2017-09-30 | 0 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2017-01-01 – 2017-09-30 | 0 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2017-04-01 – 2017-06-30 | 0 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2017-01-01 – 2017-06-30 | 0 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
Export Coal Sales · Power
Product Or Service · Statement Business Segments
Source dimensions
us-gaap:ProductOrServiceAxis=wlb:ExportCoalSalesMember;us-gaap:StatementBusinessSegmentsAxis=wlb:PowerMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2017-07-01 – 2017-09-30 | 0 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2017-01-01 – 2017-09-30 | 0 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2017-04-01 – 2017-06-30 | 0 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2017-01-01 – 2017-06-30 | 0 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
Other Revenues · Coal Canada Segment
Product Or Service · Statement Business Segments
Source dimensions
us-gaap:ProductOrServiceAxis=wlb:OtherRevenuesMember;us-gaap:StatementBusinessSegmentsAxis=wlb:CoalCanadaSegmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2018-07-01 – 2018-09-30 | 371000 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2018-01-01 – 2018-09-30 | 1397000 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2018-04-01 – 2018-06-30 | 609000 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2018-01-01 – 2018-06-30 | 1026000 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2018-01-01 – 2018-03-31 | 417000 | USD | 2018-05-04 · 20:39:53.000Z | Open filing evidence |
| 2017-07-01 – 2017-09-30 | 656000 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2017-01-01 – 2017-09-30 | 1331000 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2017-04-01 – 2017-06-30 | 182000 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2017-01-01 – 2017-06-30 | 675000 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
Other Revenues · Coal U.S.Segment
Product Or Service · Statement Business Segments
Source dimensions
us-gaap:ProductOrServiceAxis=wlb:OtherRevenuesMember;us-gaap:StatementBusinessSegmentsAxis=wlb:CoalU.S.SegmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2018-07-01 – 2018-09-30 | 1415000 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2018-01-01 – 2018-09-30 | 5005000 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2018-04-01 – 2018-06-30 | 1393000 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2018-01-01 – 2018-06-30 | 3589000 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2018-01-01 – 2018-03-31 | 2196000 | USD | 2018-05-04 · 20:39:53.000Z | Open filing evidence |
| 2017-07-01 – 2017-09-30 | 543000 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2017-01-01 – 2017-09-30 | 4788000 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2017-04-01 – 2017-06-30 | 2791000 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2017-01-01 – 2017-06-30 | 4245000 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
Other Revenues · Coal Westmoreland Resource Partners LP
Product Or Service · Statement Business Segments
Source dimensions
us-gaap:ProductOrServiceAxis=wlb:OtherRevenuesMember;us-gaap:StatementBusinessSegmentsAxis=wlb:CoalWestmorelandResourcePartnersLPMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2018-07-01 – 2018-09-30 | 54000 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2018-01-01 – 2018-09-30 | 5415000 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2018-04-01 – 2018-06-30 | 4263000 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2018-01-01 – 2018-06-30 | 5361000 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2018-01-01 – 2018-03-31 | 1098000 | USD | 2018-05-04 · 20:39:53.000Z | Open filing evidence |
| 2017-07-01 – 2017-09-30 | 718000 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2017-01-01 – 2017-09-30 | 3650000 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2017-04-01 – 2017-06-30 | 1235000 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2017-01-01 – 2017-06-30 | 2932000 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
Other Revenues · Power
Product Or Service · Statement Business Segments
Source dimensions
us-gaap:ProductOrServiceAxis=wlb:OtherRevenuesMember;us-gaap:StatementBusinessSegmentsAxis=wlb:PowerMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2017-07-01 – 2017-09-30 | 0 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2017-01-01 – 2017-09-30 | 0 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2017-04-01 – 2017-06-30 | 0 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2017-01-01 – 2017-06-30 | 0 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
Power Revenues · Coal Canada Segment
Product Or Service · Statement Business Segments
Source dimensions
us-gaap:ProductOrServiceAxis=wlb:PowerRevenuesMember;us-gaap:StatementBusinessSegmentsAxis=wlb:CoalCanadaSegmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2017-07-01 – 2017-09-30 | 0 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2017-01-01 – 2017-09-30 | 0 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2017-04-01 – 2017-06-30 | 0 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2017-01-01 – 2017-06-30 | 0 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
Power Revenues · Coal U.S.Segment
Product Or Service · Statement Business Segments
Source dimensions
us-gaap:ProductOrServiceAxis=wlb:PowerRevenuesMember;us-gaap:StatementBusinessSegmentsAxis=wlb:CoalU.S.SegmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2017-07-01 – 2017-09-30 | 0 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2017-01-01 – 2017-09-30 | 0 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2017-04-01 – 2017-06-30 | 0 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2017-01-01 – 2017-06-30 | 0 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
Power Revenues · Coal Westmoreland Resource Partners LP
Product Or Service · Statement Business Segments
Source dimensions
us-gaap:ProductOrServiceAxis=wlb:PowerRevenuesMember;us-gaap:StatementBusinessSegmentsAxis=wlb:CoalWestmorelandResourcePartnersLPMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2017-07-01 – 2017-09-30 | 0 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2017-01-01 – 2017-09-30 | 0 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2017-04-01 – 2017-06-30 | 0 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2017-01-01 – 2017-06-30 | 0 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
Power Revenues · Power
Product Or Service · Statement Business Segments
Source dimensions
us-gaap:ProductOrServiceAxis=wlb:PowerRevenuesMember;us-gaap:StatementBusinessSegmentsAxis=wlb:PowerMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2017-07-01 – 2017-09-30 | 20070000 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2017-01-01 – 2017-09-30 | 61177000 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2017-04-01 – 2017-06-30 | 19880000 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2017-01-01 – 2017-06-30 | 41107000 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
Corporate
Statement Business Segments
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=us-gaap:CorporateMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2017-01-01 – 2017-12-31 | -20196000 | USD | 2018-04-02 · 12:20:18.000Z | Open filing evidence |
| 2016-01-01 – 2016-12-31 | -25265000 | USD | 2018-04-02 · 12:20:18.000Z | Open filing evidence |
| 2015-01-01 – 2015-12-31 | -36671000 | USD | 2018-04-02 · 12:20:18.000Z | Open filing evidence |
| 2014-01-01 – 2014-12-31 | 0 | USD | 2017-03-29 · 01:01:22.000Z | Open filing evidence |
| 2014-07-01 – 2014-09-30 | 0 | USD | 2014-10-28 · 21:13:17.000Z | Open filing evidence |
| 2014-01-01 – 2014-09-30 | 0 | USD | 2014-10-28 · 21:13:17.000Z | Open filing evidence |
| 2014-04-01 – 2014-06-30 | 0 | USD | 2014-07-31 · 21:30:25.000Z | Open filing evidence |
| 2014-01-01 – 2014-06-30 | 0 | USD | 2014-07-31 · 21:30:25.000Z | Open filing evidence |
| 2014-01-01 – 2014-03-31 | 0 | USD | 2014-04-25 · 18:37:28.000Z | Open filing evidence |
| 2013-01-01 – 2013-12-31 | 0 | USD | 2016-03-12 · 02:03:36.000Z | Open filing evidence |
| 2013-07-01 – 2013-09-30 | 0 | USD | 2014-10-28 · 21:13:17.000Z | Open filing evidence |
| 2013-01-01 – 2013-09-30 | 0 | USD | 2014-10-28 · 21:13:17.000Z | Open filing evidence |
| 2013-04-01 – 2013-06-30 | 0 | USD | 2014-07-31 · 21:30:25.000Z | Open filing evidence |
| 2013-01-01 – 2013-06-30 | 0 | USD | 2014-07-31 · 21:30:25.000Z | Open filing evidence |
| 2013-01-01 – 2013-03-31 | 0 | USD | 2014-04-25 · 18:37:28.000Z | Open filing evidence |
| 2012-01-01 – 2012-12-31 | 0 | USD | 2015-03-06 · 22:11:07.000Z | Open filing evidence |
| 2011-01-01 – 2011-12-31 | 0 | USD | 2014-02-28 · 20:06:25.000Z | Open filing evidence |
Coal Canada Segment
Statement Business Segments
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=wlb:CoalCanadaSegmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2018-07-01 – 2018-09-30 | 147339000 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2018-01-01 – 2018-09-30 | 366135000 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2018-04-01 – 2018-06-30 | 109525000 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2018-01-01 – 2018-06-30 | 218797000 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2018-01-01 – 2018-03-31 | 109272000 | USD | 2018-05-04 · 20:39:53.000Z | Open filing evidence |
| 2017-01-01 – 2017-12-31 | 438273000 | USD | 2018-04-02 · 12:20:18.000Z | Open filing evidence |
| 2017-07-01 – 2017-09-30 | 114977000 Restated | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2017-01-01 – 2017-09-30 | 315210000 Restated | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2017-04-01 – 2017-06-30 | 89033000 Restated | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2017-01-01 – 2017-06-30 | 200233000 Restated | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2017-01-01 – 2017-03-31 | 111201000 Restated | USD | 2018-05-04 · 20:39:53.000Z | Open filing evidence |
| 2016-01-01 – 2016-12-31 | 415593000 | USD | 2018-04-02 · 12:20:18.000Z | Open filing evidence |
| 2016-07-01 – 2016-09-30 | 96252000 Restated | USD | 2017-10-31 · 21:03:02.000Z | Open filing evidence |
| 2016-01-01 – 2016-09-30 | 299336000 Restated | USD | 2017-10-31 · 21:03:02.000Z | Open filing evidence |
| 2016-04-01 – 2016-06-30 | 109328000 Restated | USD | 2017-08-04 · 17:46:12.000Z | Open filing evidence |
| 2016-01-01 – 2016-06-30 | 203084000 Restated | USD | 2017-08-04 · 17:46:12.000Z | Open filing evidence |
| 2016-01-01 – 2016-03-31 | 93756000 Restated | USD | 2017-05-15 · 17:13:59.000Z | Open filing evidence |
| 2015-01-01 – 2015-12-31 | 430416000 Restated | USD | 2018-04-02 · 12:20:18.000Z | Open filing evidence |
| 2015-07-01 – 2015-09-30 | 107752000 | USD | 2016-11-01 · 21:27:06.000Z | Open filing evidence |
| 2015-01-01 – 2015-09-30 | 317157000 | USD | 2016-11-01 · 21:27:06.000Z | Open filing evidence |
| 2015-04-01 – 2015-06-30 | 106162000 | USD | 2016-08-02 · 15:56:36.000Z | Open filing evidence |
| 2015-01-01 – 2015-06-30 | 209405000 | USD | 2016-08-02 · 15:56:36.000Z | Open filing evidence |
| 2015-01-01 – 2015-03-31 | 103242000 | USD | 2016-05-10 · 16:12:36.000Z | Open filing evidence |
| 2014-01-01 – 2014-12-31 | 388711000 Restated | USD | 2017-03-29 · 01:01:22.000Z | Open filing evidence |
| 2014-07-01 – 2014-09-30 | 151340000 | USD | 2015-11-05 · 01:53:26.000Z | Open filing evidence |
| 2014-01-01 – 2014-09-30 | 267387000 | USD | 2015-11-05 · 01:53:26.000Z | Open filing evidence |
| 2014-04-01 – 2014-06-30 | 116046000 | USD | 2015-07-30 · 22:38:10.000Z | Open filing evidence |
| 2014-01-01 – 2014-06-30 | 116046000 | USD | 2015-07-30 · 22:38:10.000Z | Open filing evidence |
| 2014-01-01 – 2014-03-31 | 0 | USD | 2015-04-28 · 18:04:59.000Z | Open filing evidence |
| 2013-01-01 – 2013-12-31 | 0 | USD | 2016-03-12 · 02:03:36.000Z | Open filing evidence |
| 2013-07-01 – 2013-09-30 | 0 | USD | 2014-10-28 · 21:13:17.000Z | Open filing evidence |
| 2013-01-01 – 2013-09-30 | 0 | USD | 2014-10-28 · 21:13:17.000Z | Open filing evidence |
| 2013-04-01 – 2013-06-30 | 0 | USD | 2014-07-31 · 21:30:25.000Z | Open filing evidence |
| 2013-01-01 – 2013-06-30 | 0 | USD | 2014-07-31 · 21:30:25.000Z | Open filing evidence |
Coal Segment
Statement Business Segments
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=wlb:CoalSegmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2017-01-01 – 2017-12-31 | 573697000 | USD | 2018-04-02 · 12:20:18.000Z | Open filing evidence |
| 2016-01-01 – 2016-12-31 | 651713000 | USD | 2018-04-02 · 12:20:18.000Z | Open filing evidence |
| 2015-01-01 – 2015-12-31 | 552745000 Restated | USD | 2018-04-02 · 12:20:18.000Z | Open filing evidence |
| 2014-01-01 – 2014-12-31 | 486528000 Restated | USD | 2017-03-29 · 01:01:22.000Z | Open filing evidence |
| 2014-01-01 – 2014-03-31 | 158190000 | USD | 2014-04-25 · 18:37:28.000Z | Open filing evidence |
| 2013-01-01 – 2013-12-31 | 414652000 Restated | USD | 2016-03-12 · 02:03:36.000Z | Open filing evidence |
| 2013-07-01 – 2013-09-30 | 151881000 | USD | 2013-10-25 · 17:40:35.000Z | Open filing evidence |
| 2013-01-01 – 2013-09-30 | 433330000 | USD | 2013-10-25 · 17:40:35.000Z | Open filing evidence |
| 2013-04-01 – 2013-06-30 | 139337000 | USD | 2013-07-26 · 19:25:38.000Z | Open filing evidence |
| 2013-01-01 – 2013-06-30 | 281449000 | USD | 2013-07-26 · 19:25:38.000Z | Open filing evidence |
| 2013-01-01 – 2013-03-31 | 142112000 | USD | 2014-04-25 · 18:37:28.000Z | Open filing evidence |
| 2012-01-01 – 2012-12-31 | 519152000 | USD | 2015-03-06 · 22:11:07.000Z | Open filing evidence |
| 2012-07-01 – 2012-09-30 | 138798000 | USD | 2013-10-25 · 17:40:35.000Z | Open filing evidence |
| 2012-01-01 – 2012-09-30 | 382272000 | USD | 2013-10-25 · 17:40:35.000Z | Open filing evidence |
| 2012-04-01 – 2012-06-30 | 116960000 | USD | 2013-07-26 · 19:25:38.000Z | Open filing evidence |
| 2012-01-01 – 2012-06-30 | 243474000 | USD | 2013-07-26 · 19:25:38.000Z | Open filing evidence |
| 2012-01-01 – 2012-03-31 | 126514000 | USD | 2013-04-30 · 20:29:51.000Z | Open filing evidence |
| 2011-01-01 – 2011-12-31 | 414928000 | USD | 2014-02-28 · 20:06:25.000Z | Open filing evidence |
| 2011-07-01 – 2011-09-30 | 108823000 | USD | 20121108 | Open filing evidence |
| 2011-01-01 – 2011-09-30 | 303734000 | USD | 20121108 | Open filing evidence |
| 2011-04-01 – 2011-06-30 | 90776000 | USD | 20120809 | Open filing evidence |
| 2011-01-01 – 2011-06-30 | 194911000 | USD | 20120809 | Open filing evidence |
| 2010-01-01 – 2010-12-31 | 418058000 | USD | 2013-03-12 · 20:56:34.000Z | Open filing evidence |
Coal U.S.Segment
Statement Business Segments
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=wlb:CoalU.S.SegmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2018-07-01 – 2018-09-30 | 121320000 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2018-01-01 – 2018-09-30 | 342412000 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2018-04-01 – 2018-06-30 | 102492000 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2018-01-01 – 2018-06-30 | 221090000 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2018-01-01 – 2018-03-31 | 118598000 | USD | 2018-05-04 · 20:39:53.000Z | Open filing evidence |
| 2017-07-01 – 2017-09-30 | 149755000 Restated | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2017-01-01 – 2017-09-30 | 437855000 Restated | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2017-04-01 – 2017-06-30 | 145642000 Restated | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2017-01-01 – 2017-06-30 | 288100000 Restated | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2017-01-01 – 2017-03-31 | 142458000 Restated | USD | 2018-05-04 · 20:39:53.000Z | Open filing evidence |
| 2016-07-01 – 2016-09-30 | 170177000 Restated | USD | 2017-10-31 · 21:03:02.000Z | Open filing evidence |
| 2016-01-01 – 2016-09-30 | 478684000 Restated | USD | 2017-10-31 · 21:03:02.000Z | Open filing evidence |
| 2016-04-01 – 2016-06-30 | 152519000 Restated | USD | 2017-08-04 · 17:46:12.000Z | Open filing evidence |
| 2016-01-01 – 2016-06-30 | 308508000 Restated | USD | 2017-08-04 · 17:46:12.000Z | Open filing evidence |
| 2016-01-01 – 2016-03-31 | 155990000 Restated | USD | 2017-05-15 · 17:13:59.000Z | Open filing evidence |
| 2015-07-01 – 2015-09-30 | 132018000 | USD | 2016-11-01 · 21:27:06.000Z | Open filing evidence |
| 2015-01-01 – 2015-09-30 | 419505000 | USD | 2016-11-01 · 21:27:06.000Z | Open filing evidence |
| 2015-04-01 – 2015-06-30 | 132620000 Restated | USD | 2016-08-02 · 15:56:36.000Z | Open filing evidence |
| 2015-01-01 – 2015-06-30 | 287487000 Restated | USD | 2016-08-02 · 15:56:36.000Z | Open filing evidence |
| 2015-01-01 – 2015-03-31 | 154869000 Restated | USD | 2016-05-10 · 16:12:36.000Z | Open filing evidence |
| 2014-07-01 – 2014-09-30 | 123134000 Restated | USD | 2015-11-05 · 01:53:26.000Z | Open filing evidence |
| 2014-01-01 – 2014-09-30 | 348417000 Restated | USD | 2015-11-05 · 01:53:26.000Z | Open filing evidence |
| 2014-04-01 – 2014-06-30 | 150107000 | USD | 2015-07-30 · 22:38:10.000Z | Open filing evidence |
| 2014-01-01 – 2014-06-30 | 308298000 | USD | 2015-07-30 · 22:38:10.000Z | Open filing evidence |
| 2014-01-01 – 2014-03-31 | 158190000 | USD | 2015-04-28 · 18:04:59.000Z | Open filing evidence |
| 2013-07-01 – 2013-09-30 | 151881000 | USD | 2014-10-28 · 21:13:17.000Z | Open filing evidence |
| 2013-01-01 – 2013-09-30 | 433330000 | USD | 2014-10-28 · 21:13:17.000Z | Open filing evidence |
| 2013-04-01 – 2013-06-30 | 139337000 | USD | 2014-07-31 · 21:30:25.000Z | Open filing evidence |
| 2013-01-01 – 2013-06-30 | 281449000 | USD | 2014-07-31 · 21:30:25.000Z | Open filing evidence |
Coal Westmoreland Resource Partners LP
Statement Business Segments
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=wlb:CoalWestmorelandResourcePartnersLPMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2018-07-01 – 2018-09-30 | 62785000 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2018-01-01 – 2018-09-30 | 194887000 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2018-04-01 – 2018-06-30 | 64295000 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2018-01-01 – 2018-06-30 | 132102000 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2018-01-01 – 2018-03-31 | 67807000 | USD | 2018-05-04 · 20:39:53.000Z | Open filing evidence |
| 2017-07-01 – 2017-09-30 | 85606000 Restated | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2017-01-01 – 2017-09-30 | 241462000 Restated | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2017-04-01 – 2017-06-30 | 81052000 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2017-01-01 – 2017-06-30 | 155857000 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2017-01-01 – 2017-03-31 | 74805000 | USD | 2018-05-04 · 20:39:53.000Z | Open filing evidence |
| 2016-07-01 – 2016-09-30 | 90320000 | USD | 2017-10-31 · 21:03:02.000Z | Open filing evidence |
| 2016-01-01 – 2016-09-30 | 263269000 | USD | 2017-10-31 · 21:03:02.000Z | Open filing evidence |
| 2016-04-01 – 2016-06-30 | 80468000 | USD | 2017-08-04 · 17:46:12.000Z | Open filing evidence |
| 2016-01-01 – 2016-06-30 | 172949000 | USD | 2017-08-04 · 17:46:12.000Z | Open filing evidence |
| 2016-01-01 – 2016-03-31 | 92481000 | USD | 2017-05-15 · 17:13:59.000Z | Open filing evidence |
| 2015-07-01 – 2015-09-30 | 94785000 | USD | 2016-11-01 · 21:27:06.000Z | Open filing evidence |
| 2015-01-01 – 2015-09-30 | 300908000 | USD | 2016-11-01 · 21:27:06.000Z | Open filing evidence |
| 2015-04-01 – 2015-06-30 | 97033000 Restated | USD | 2016-08-02 · 15:56:36.000Z | Open filing evidence |
| 2015-01-01 – 2015-06-30 | 206123000 Restated | USD | 2016-08-02 · 15:56:36.000Z | Open filing evidence |
| 2015-01-01 – 2015-03-31 | 109090000 Restated | USD | 2016-05-10 · 16:12:36.000Z | Open filing evidence |
| 2014-07-01 – 2014-09-30 | 41917000 | USD | 2015-11-05 · 01:53:26.000Z | Open filing evidence |
| 2014-01-01 – 2014-09-30 | 124933000 | USD | 2015-11-05 · 01:53:26.000Z | Open filing evidence |
| 2014-04-01 – 2014-06-30 | 0 | USD | 2015-07-30 · 22:38:10.000Z | Open filing evidence |
| 2014-01-01 – 2014-06-30 | 0 | USD | 2015-07-30 · 22:38:10.000Z | Open filing evidence |
| 2014-01-01 – 2014-03-31 | 0 | USD | 2015-04-28 · 18:04:59.000Z | Open filing evidence |
Corporateand Eliminations
Statement Business Segments
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=wlb:CorporateandEliminationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2018-07-01 – 2018-09-30 | -2554000 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2018-01-01 – 2018-09-30 | -2554000 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2018-04-01 – 2018-06-30 | 0 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2018-01-01 – 2018-06-30 | 0 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2018-01-01 – 2018-03-31 | 0 | USD | 2018-05-04 · 20:39:53.000Z | Open filing evidence |
| 2017-07-01 – 2017-09-30 | -5394000 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2017-01-01 – 2017-09-30 | -16363000 Restated | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2017-04-01 – 2017-06-30 | -8293000 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2017-01-01 – 2017-06-30 | -10971000 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2017-01-01 – 2017-03-31 | -2678000 | USD | 2018-05-04 · 20:39:53.000Z | Open filing evidence |
| 2016-07-01 – 2016-09-30 | -6531000 | USD | 2017-10-31 · 21:03:02.000Z | Open filing evidence |
| 2016-01-01 – 2016-09-30 | -21560000 | USD | 2017-10-31 · 21:03:02.000Z | Open filing evidence |
| 2016-04-01 – 2016-06-30 | -6662000 | USD | 2017-08-04 · 17:46:12.000Z | Open filing evidence |
| 2016-01-01 – 2016-06-30 | -15030000 | USD | 2017-08-04 · 17:46:12.000Z | Open filing evidence |
| 2016-01-01 – 2016-03-31 | -8368000 | USD | 2017-05-15 · 17:13:59.000Z | Open filing evidence |
| 2015-07-01 – 2015-09-30 | -6776000 | USD | 2016-11-01 · 21:27:06.000Z | Open filing evidence |
| 2015-01-01 – 2015-09-30 | -31331000 | USD | 2016-11-01 · 21:27:06.000Z | Open filing evidence |
| 2015-04-01 – 2015-06-30 | -8190000 | USD | 2016-08-02 · 15:56:36.000Z | Open filing evidence |
| 2015-01-01 – 2015-06-30 | -24555000 | USD | 2016-08-02 · 15:56:36.000Z | Open filing evidence |
| 2015-01-01 – 2015-03-31 | -16365000 | USD | 2016-05-10 · 16:12:36.000Z | Open filing evidence |
| 2014-07-01 – 2014-09-30 | 0 | USD | 2015-11-05 · 01:53:26.000Z | Open filing evidence |
| 2014-01-01 – 2014-09-30 | 0 | USD | 2015-11-05 · 01:53:26.000Z | Open filing evidence |
| 2014-04-01 – 2014-06-30 | 0 | USD | 2015-07-30 · 22:38:10.000Z | Open filing evidence |
| 2014-01-01 – 2014-06-30 | 0 | USD | 2015-07-30 · 22:38:10.000Z | Open filing evidence |
| 2014-01-01 – 2014-03-31 | 0 | USD | 2015-04-28 · 18:04:59.000Z | Open filing evidence |
Corporate Segment
Statement Business Segments
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=wlb:CorporateSegmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2013-07-01 – 2013-09-30 | 0 | USD | 2013-10-25 · 17:40:35.000Z | Open filing evidence |
| 2013-01-01 – 2013-09-30 | 0 | USD | 2013-10-25 · 17:40:35.000Z | Open filing evidence |
| 2013-04-01 – 2013-06-30 | 0 | USD | 2013-07-26 · 19:25:38.000Z | Open filing evidence |
| 2013-01-01 – 2013-06-30 | 0 | USD | 2013-07-26 · 19:25:38.000Z | Open filing evidence |
| 2013-01-01 – 2013-03-31 | 0 | USD | 2013-04-30 · 20:29:51.000Z | Open filing evidence |
| 2012-01-01 – 2012-12-31 | 0 | USD | 2013-03-12 · 20:56:34.000Z | Open filing evidence |
| 2012-07-01 – 2012-09-30 | 0 | USD | 2013-10-25 · 17:40:35.000Z | Open filing evidence |
| 2012-01-01 – 2012-09-30 | 0 | USD | 2013-10-25 · 17:40:35.000Z | Open filing evidence |
| 2012-04-01 – 2012-06-30 | 0 | USD | 2013-07-26 · 19:25:38.000Z | Open filing evidence |
| 2012-01-01 – 2012-06-30 | 0 | USD | 2013-07-26 · 19:25:38.000Z | Open filing evidence |
| 2012-01-01 – 2012-03-31 | 0 | USD | 2013-04-30 · 20:29:51.000Z | Open filing evidence |
| 2011-01-01 – 2011-12-31 | 0 | USD | 2013-03-12 · 20:56:34.000Z | Open filing evidence |
| 2010-01-01 – 2010-12-31 | 0 | USD | 2013-03-12 · 20:56:34.000Z | Open filing evidence |
Heritage Segment
Statement Business Segments
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=wlb:HeritageSegmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2018-07-01 – 2018-09-30 | 0 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2018-01-01 – 2018-09-30 | 0 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2018-04-01 – 2018-06-30 | 0 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2018-01-01 – 2018-06-30 | 0 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2018-01-01 – 2018-03-31 | 0 | USD | 2018-05-04 · 20:39:53.000Z | Open filing evidence |
| 2017-01-01 – 2017-12-31 | 0 | USD | 2018-04-02 · 12:20:18.000Z | Open filing evidence |
| 2017-07-01 – 2017-09-30 | 0 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2017-01-01 – 2017-09-30 | 0 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2017-04-01 – 2017-06-30 | 0 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2017-01-01 – 2017-06-30 | 0 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2017-01-01 – 2017-03-31 | 0 | USD | 2018-05-04 · 20:39:53.000Z | Open filing evidence |
| 2016-01-01 – 2016-12-31 | 0 | USD | 2018-04-02 · 12:20:18.000Z | Open filing evidence |
| 2016-07-01 – 2016-09-30 | 0 | USD | 2017-10-31 · 21:03:02.000Z | Open filing evidence |
| 2016-01-01 – 2016-09-30 | 0 | USD | 2017-10-31 · 21:03:02.000Z | Open filing evidence |
| 2016-04-01 – 2016-06-30 | 0 | USD | 2017-08-04 · 17:46:12.000Z | Open filing evidence |
| 2016-01-01 – 2016-06-30 | 0 | USD | 2017-08-04 · 17:46:12.000Z | Open filing evidence |
| 2016-01-01 – 2016-03-31 | 0 | USD | 2017-05-15 · 17:13:59.000Z | Open filing evidence |
| 2015-01-01 – 2015-12-31 | 0 | USD | 2018-04-02 · 12:20:18.000Z | Open filing evidence |
| 2015-07-01 – 2015-09-30 | 0 | USD | 2016-11-01 · 21:27:06.000Z | Open filing evidence |
| 2015-01-01 – 2015-09-30 | 0 | USD | 2016-11-01 · 21:27:06.000Z | Open filing evidence |
| 2015-04-01 – 2015-06-30 | 0 | USD | 2016-08-02 · 15:56:36.000Z | Open filing evidence |
| 2015-01-01 – 2015-06-30 | 0 | USD | 2016-08-02 · 15:56:36.000Z | Open filing evidence |
| 2015-01-01 – 2015-03-31 | 0 | USD | 2016-05-10 · 16:12:36.000Z | Open filing evidence |
| 2014-01-01 – 2014-12-31 | 0 | USD | 2017-03-29 · 01:01:22.000Z | Open filing evidence |
| 2014-07-01 – 2014-09-30 | 0 | USD | 2015-11-05 · 01:53:26.000Z | Open filing evidence |
| 2014-01-01 – 2014-09-30 | 0 | USD | 2015-11-05 · 01:53:26.000Z | Open filing evidence |
| 2014-04-01 – 2014-06-30 | 0 | USD | 2015-07-30 · 22:38:10.000Z | Open filing evidence |
| 2014-01-01 – 2014-06-30 | 0 | USD | 2015-07-30 · 22:38:10.000Z | Open filing evidence |
| 2014-01-01 – 2014-03-31 | 0 | USD | 2015-04-28 · 18:04:59.000Z | Open filing evidence |
| 2013-01-01 – 2013-12-31 | 0 | USD | 2016-03-12 · 02:03:36.000Z | Open filing evidence |
| 2013-07-01 – 2013-09-30 | 0 | USD | 2014-10-28 · 21:13:17.000Z | Open filing evidence |
| 2013-01-01 – 2013-09-30 | 0 | USD | 2014-10-28 · 21:13:17.000Z | Open filing evidence |
| 2013-04-01 – 2013-06-30 | 0 | USD | 2014-07-31 · 21:30:25.000Z | Open filing evidence |
| 2013-01-01 – 2013-06-30 | 0 | USD | 2014-07-31 · 21:30:25.000Z | Open filing evidence |
| 2013-01-01 – 2013-03-31 | 0 | USD | 2014-04-25 · 18:37:28.000Z | Open filing evidence |
| 2012-01-01 – 2012-12-31 | 0 | USD | 2015-03-06 · 22:11:07.000Z | Open filing evidence |
| 2012-07-01 – 2012-09-30 | 0 | USD | 2013-10-25 · 17:40:35.000Z | Open filing evidence |
| 2012-01-01 – 2012-09-30 | 0 | USD | 2013-10-25 · 17:40:35.000Z | Open filing evidence |
| 2012-04-01 – 2012-06-30 | 0 | USD | 2013-07-26 · 19:25:38.000Z | Open filing evidence |
| 2012-01-01 – 2012-06-30 | 0 | USD | 2013-07-26 · 19:25:38.000Z | Open filing evidence |
| 2012-01-01 – 2012-03-31 | 0 | USD | 2013-04-30 · 20:29:51.000Z | Open filing evidence |
| 2011-01-01 – 2011-12-31 | 0 | USD | 2014-02-28 · 20:06:25.000Z | Open filing evidence |
| 2010-01-01 – 2010-12-31 | 0 | USD | 2013-03-12 · 20:56:34.000Z | Open filing evidence |
Power
Statement Business Segments
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=wlb:PowerMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2018-07-01 – 2018-09-30 | 0 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2018-01-01 – 2018-09-30 | 0 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2018-04-01 – 2018-06-30 | 0 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2018-01-01 – 2018-06-30 | 0 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2018-01-01 – 2018-03-31 | 0 | USD | 2018-05-04 · 20:39:53.000Z | Open filing evidence |
| 2017-01-01 – 2017-12-31 | 77189000 | USD | 2018-04-02 · 12:20:18.000Z | Open filing evidence |
| 2017-07-01 – 2017-09-30 | 20070000 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2017-01-01 – 2017-09-30 | 61177000 | USD | 2018-11-01 · 21:02:12.000Z | Open filing evidence |
| 2017-04-01 – 2017-06-30 | 19880000 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2017-01-01 – 2017-06-30 | 41107000 | USD | 2018-08-03 · 22:17:26.000Z | Open filing evidence |
| 2017-01-01 – 2017-03-31 | 21227000 | USD | 2018-05-04 · 20:39:53.000Z | Open filing evidence |
| 2016-01-01 – 2016-12-31 | 86578000 | USD | 2018-04-02 · 12:20:18.000Z | Open filing evidence |
| 2016-07-01 – 2016-09-30 | 21554000 | USD | 2017-10-31 · 21:03:02.000Z | Open filing evidence |
| 2016-01-01 – 2016-09-30 | 65494000 | USD | 2017-10-31 · 21:03:02.000Z | Open filing evidence |
| 2016-04-01 – 2016-06-30 | 21944000 | USD | 2017-08-04 · 17:46:12.000Z | Open filing evidence |
| 2016-01-01 – 2016-06-30 | 43940000 | USD | 2017-08-04 · 17:46:12.000Z | Open filing evidence |
| 2016-01-01 – 2016-03-31 | 21995000 | USD | 2017-05-15 · 17:13:59.000Z | Open filing evidence |
| 2015-01-01 – 2015-12-31 | 84423000 | USD | 2018-04-02 · 12:20:18.000Z | Open filing evidence |
| 2015-07-01 – 2015-09-30 | 22017000 | USD | 2016-11-01 · 21:27:06.000Z | Open filing evidence |
| 2015-01-01 – 2015-09-30 | 64001000 | USD | 2016-11-01 · 21:27:06.000Z | Open filing evidence |
| 2015-04-01 – 2015-06-30 | 21334000 | USD | 2016-08-02 · 15:56:36.000Z | Open filing evidence |
| 2015-01-01 – 2015-06-30 | 41984000 | USD | 2016-08-02 · 15:56:36.000Z | Open filing evidence |
| 2015-01-01 – 2015-03-31 | 20647000 | USD | 2016-05-10 · 16:12:36.000Z | Open filing evidence |
| 2014-01-01 – 2014-12-31 | 85253000 | USD | 2017-03-29 · 01:01:22.000Z | Open filing evidence |
| 2014-07-01 – 2014-09-30 | 21439000 | USD | 2015-11-05 · 01:53:26.000Z | Open filing evidence |
| 2014-01-01 – 2014-09-30 | 65252000 | USD | 2015-11-05 · 01:53:26.000Z | Open filing evidence |
| 2014-04-01 – 2014-06-30 | 21803000 | USD | 2015-07-30 · 22:38:10.000Z | Open filing evidence |
| 2014-01-01 – 2014-06-30 | 43815000 | USD | 2015-07-30 · 22:38:10.000Z | Open filing evidence |
| 2014-01-01 – 2014-03-31 | 22012000 | USD | 2015-04-28 · 18:04:59.000Z | Open filing evidence |
| 2013-01-01 – 2013-12-31 | 87567000 | USD | 2016-03-12 · 02:03:36.000Z | Open filing evidence |
| 2013-07-01 – 2013-09-30 | 24911000 | USD | 2014-10-28 · 21:13:17.000Z | Open filing evidence |
| 2013-01-01 – 2013-09-30 | 67409000 | USD | 2014-10-28 · 21:13:17.000Z | Open filing evidence |
| 2013-04-01 – 2013-06-30 | 23162000 | USD | 2014-07-31 · 21:30:25.000Z | Open filing evidence |
| 2013-01-01 – 2013-06-30 | 42498000 | USD | 2014-07-31 · 21:30:25.000Z | Open filing evidence |
| 2013-01-01 – 2013-03-31 | 19336000 | USD | 2014-04-25 · 18:37:28.000Z | Open filing evidence |
| 2012-01-01 – 2012-12-31 | 81285000 | USD | 2015-03-06 · 22:11:07.000Z | Open filing evidence |
| 2012-07-01 – 2012-09-30 | 22534000 | USD | 2013-10-25 · 17:40:35.000Z | Open filing evidence |
| 2012-01-01 – 2012-09-30 | 59138000 | USD | 2013-10-25 · 17:40:35.000Z | Open filing evidence |
| 2012-04-01 – 2012-06-30 | 15882000 | USD | 2013-07-26 · 19:25:38.000Z | Open filing evidence |
| 2012-01-01 – 2012-06-30 | 36604000 | USD | 2013-07-26 · 19:25:38.000Z | Open filing evidence |
| 2012-01-01 – 2012-03-31 | 20722000 | USD | 2013-04-30 · 20:29:51.000Z | Open filing evidence |
| 2011-01-01 – 2011-12-31 | 86785000 | USD | 2014-02-28 · 20:06:25.000Z | Open filing evidence |
| 2011-07-01 – 2011-09-30 | 23626000 | USD | 20121108 | Open filing evidence |
| 2011-01-01 – 2011-09-30 | 68619000 | USD | 20121108 | Open filing evidence |
| 2010-01-01 – 2010-12-31 | 87999000 | USD | 2013-03-12 · 20:56:34.000Z | Open filing evidence |
Power Segment
Statement Business Segments
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=wlb:PowerSegmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2012-04-01 – 2012-06-30 | 15882000 | USD | 20120809 | Open filing evidence |
| 2012-01-01 – 2012-06-30 | 36604000 | USD | 20120809 | Open filing evidence |
| 2011-04-01 – 2011-06-30 | 21364000 | USD | 20120809 | Open filing evidence |
| 2011-01-01 – 2011-06-30 | 44993000 | USD | 20120809 | Open filing evidence |
Westmoreland Resource Partners LP
Statement Business Segments
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=wlb:WestmorelandResourcePartnersLPMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2017-01-01 – 2017-12-31 | 315605000 | USD | 2018-04-02 · 12:20:18.000Z | Open filing evidence |
| 2016-01-01 – 2016-12-31 | 349341000 | USD | 2018-04-02 · 12:20:18.000Z | Open filing evidence |
| 2015-01-01 – 2015-12-31 | 388605000 | USD | 2018-04-02 · 12:20:18.000Z | Open filing evidence |
| 2014-01-01 – 2014-12-31 | 170508000 Restated | USD | 2017-03-29 · 01:01:22.000Z | Open filing evidence |
| 2013-01-01 – 2013-12-31 | 172467000 | USD | 2016-03-12 · 02:03:36.000Z | Open filing evidence |