Organization record
WESTMORELAND COAL CO
All evidence-backed facts for this organization, identity resolved across official registers.
Facts on record
Newest first; every row links to its evidence page.
| Fact | Value | Period | Source |
|---|---|---|---|
| accounts_receivable | {"amount": 88823000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2018-09-30 | sec_edgar |
| accounts_receivable | {"amount": 78504000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2018-06-30 | sec_edgar |
| accounts_receivable | {"amount": 95366000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2018-03-31 | sec_edgar |
| accounts_receivable | {"amount": 89311000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2017-12-31 | sec_edgar |
| accounts_receivable | {"amount": 146412000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2017-09-30 | sec_edgar |
| accounts_receivable | {"amount": 132715000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2017-06-30 | sec_edgar |
| accounts_receivable | {"amount": 131124000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2017-03-31 | sec_edgar |
| accounts_receivable | {"amount": 140731000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2016-12-31 | sec_edgar |
| accounts_receivable | {"amount": 140063000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2016-09-30 | sec_edgar |
| accounts_receivable | {"amount": 142587000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2016-06-30 | sec_edgar |
| accounts_receivable | {"amount": 150068000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2016-03-31 | sec_edgar |
| accounts_receivable | {"amount": 134141000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2015-12-31 | sec_edgar |
| accounts_receivable | {"amount": 146522000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2015-09-30 | sec_edgar |
| accounts_receivable | {"amount": 136720000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2015-06-30 | sec_edgar |
| accounts_receivable | {"amount": 154167000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2015-03-31 | sec_edgar |
| accounts_receivable | {"amount": 143052000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2014-12-31 | sec_edgar |
| accounts_receivable | {"amount": 138779000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2014-09-30 | sec_edgar |
| accounts_receivable | {"amount": 129652000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2014-06-30 | sec_edgar |
| accounts_receivable | {"amount": 64715000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2014-03-31 | sec_edgar |
| accounts_receivable | {"amount": 66196000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2013-12-31 | sec_edgar |
| accounts_receivable | {"amount": 67313000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2013-09-30 | sec_edgar |
| accounts_receivable | {"amount": 56916000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2013-06-30 | sec_edgar |
| accounts_receivable | {"amount": 60218000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2013-03-31 | sec_edgar |
| accounts_receivable | {"amount": 60037000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2012-12-31 | sec_edgar |
| accounts_receivable | {"amount": 67897000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2012-09-30 | sec_edgar |
| accounts_receivable | {"amount": 55167000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2012-06-30 | sec_edgar |
| accounts_receivable | {"amount": 55705000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2012-03-31 | sec_edgar |
| accounts_receivable | {"amount": 46235000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2011-12-31 | sec_edgar |
| accounts_receivable | {"amount": 46698000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2011-09-30 | sec_edgar |
| accounts_receivable | {"amount": 39884000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2011-06-30 | sec_edgar |
| accounts_receivable | {"amount": 50578000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2010-12-31 | sec_edgar |
| capex | {"amount": 25309000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2018-09-30 | sec_edgar |
| capex | {"amount": 11773000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2018-06-30 | sec_edgar |
| capex | {"amount": 6164000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2018-03-31 | sec_edgar |
| capex | {"amount": 35016000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2017-12-31 | sec_edgar |
| capex | {"amount": 25365000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2017-09-30 | sec_edgar |
| capex | {"amount": 13104000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2017-06-30 | sec_edgar |
| capex | {"amount": 7210000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2017-03-31 | sec_edgar |
| capex | {"amount": 46132000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2016-12-31 | sec_edgar |
| capex | {"amount": 30619000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2016-09-30 | sec_edgar |
| capex | {"amount": 12231000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2016-06-30 | sec_edgar |
| capex | {"amount": 5548000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2016-03-31 | sec_edgar |
| capex | {"amount": 77921000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2015-12-31 | sec_edgar |
| capex | {"amount": 57971000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2015-09-30 | sec_edgar |
| capex | {"amount": 38554000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2015-06-30 | sec_edgar |
| capex | {"amount": 13027000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2015-03-31 | sec_edgar |
| capex | {"amount": 50326000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2014-12-31 | sec_edgar |
| capex | {"amount": 35646000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2014-09-30 | sec_edgar |
| capex | {"amount": 17361000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2014-06-30 | sec_edgar |
| capex | {"amount": 3050000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2014-03-31 | sec_edgar |
| capex | {"amount": 28591000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2013-12-31 | sec_edgar |
| capex | {"amount": 20223000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2013-09-30 | sec_edgar |
| capex | {"amount": 13467000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2013-06-30 | sec_edgar |
| capex | {"amount": 5301000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2013-03-31 | sec_edgar |
| capex | {"amount": 21032000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2012-12-31 | sec_edgar |
| capex | {"amount": 16066000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2012-09-30 | sec_edgar |
| capex | {"amount": 11981000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2012-06-30 | sec_edgar |
| capex | {"amount": 4420000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2012-03-31 | sec_edgar |
| capex | {"amount": 27594000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2011-12-31 | sec_edgar |
| capex | {"amount": 15103000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2011-09-30 | sec_edgar |
| capex | {"amount": 11970000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2011-06-30 | sec_edgar |
| capex | {"amount": 2923000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2011-03-31 | sec_edgar |
| capex | {"amount": 22814000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2010-12-31 | sec_edgar |
| capex | {"amount": 15645000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2010-09-30 | sec_edgar |
| capex | {"amount": 9543000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2010-06-30 | sec_edgar |
| capex | {"amount": 34546000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2009-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 93590000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2018-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 63187000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2018-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 78794000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2018-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 103247000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2017-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 44143000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2017-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 57620000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2017-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 75438000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2017-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 60082000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2016-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 28914000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2016-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 35876000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2016-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 17754000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2016-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 22936000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2015-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 29336000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2015-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 35876000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2015-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 53393000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2015-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 14258000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2014-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 123690000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2014-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 40610000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2014-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 61900000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2014-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 61110000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2013-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 45487000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2013-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 36274000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2013-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 40852000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2013-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 31610000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2012-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 53685000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2012-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 47330000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2012-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 50107000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2012-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 30783000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2011-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 43229000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2011-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 41738000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2011-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 44984000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2011-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 30783000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2010-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 16070000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2010-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 10686000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2010-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 10519000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2009-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 39941000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2008-12-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 152131000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2018-09-30 | sec_edgar |
| cash_and_restricted_cash | {"amount": 120869000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2018-06-30 | sec_edgar |
| cash_and_restricted_cash | {"amount": 126992000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2018-03-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 152439000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2017-12-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 113027000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2017-09-30 | sec_edgar |
| cash_and_restricted_cash | {"amount": 126036000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2017-06-30 | sec_edgar |
| cash_and_restricted_cash | {"amount": 142300000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2017-03-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 129615000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2016-12-31 | sec_edgar |
| cashflow_financing | {"amount": 11270000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cur | 2018-09-30 | sec_edgar |
| cashflow_financing | {"amount": 17040000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cur | 2018-06-30 | sec_edgar |
| cashflow_financing | {"amount": -9758000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cur | 2018-03-31 | sec_edgar |
| cashflow_financing | {"amount": -82802000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2017-12-31 | sec_edgar |
| cashflow_financing | {"amount": -54088000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2017-09-30 | sec_edgar |
| cashflow_financing | {"amount": -44688000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2017-06-30 | sec_edgar |
| cashflow_financing | {"amount": -22546000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2017-03-31 | sec_edgar |
| cashflow_financing | {"amount": 40122000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cur | 2016-12-31 | sec_edgar |
| cashflow_financing | {"amount": 68330000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cur | 2016-09-30 | sec_edgar |
| cashflow_financing | {"amount": 99051000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cur | 2016-06-30 | sec_edgar |
| cashflow_financing | {"amount": 107018000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2016-03-31 | sec_edgar |
| cashflow_financing | {"amount": 36723000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cur | 2015-12-31 | sec_edgar |
| cashflow_financing | {"amount": 44248000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cur | 2015-09-30 | sec_edgar |
| cashflow_financing | {"amount": 35967000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cur | 2015-06-30 | sec_edgar |
| cashflow_financing | {"amount": 49915000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cur | 2015-03-31 | sec_edgar |
| cashflow_financing | {"amount": 338706000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2014-12-31 | sec_edgar |
| cashflow_financing | {"amount": 371509000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2014-09-30 | sec_edgar |
| cashflow_financing | {"amount": 330956000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2014-06-30 | sec_edgar |
| cashflow_financing | {"amount": 439806000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2014-03-31 | sec_edgar |
| cashflow_financing | {"amount": -29320000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2013-12-31 | sec_edgar |
| cashflow_financing | {"amount": -23247000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2013-09-30 | sec_edgar |
| cashflow_financing | {"amount": -15155000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2013-06-30 | sec_edgar |
| cashflow_financing | {"amount": -6249000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cur | 2013-03-31 | sec_edgar |
| cashflow_financing | {"amount": 67217000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cur | 2012-12-31 | sec_edgar |
| cashflow_financing | {"amount": 97202000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cur | 2012-09-30 | sec_edgar |
| cashflow_financing | {"amount": 103253000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2012-06-30 | sec_edgar |
| cashflow_financing | {"amount": 108907000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2012-03-31 | sec_edgar |
| cashflow_financing | {"amount": 13912000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cur | 2011-12-31 | sec_edgar |
| cashflow_financing | {"amount": 18921000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cur | 2011-09-30 | sec_edgar |
| cashflow_financing | {"amount": 26120000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cur | 2011-06-30 | sec_edgar |
| cashflow_financing | {"amount": 28911000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cur | 2011-03-31 | sec_edgar |
| cashflow_financing | {"amount": -20917000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2010-12-31 | sec_edgar |
| cashflow_financing | {"amount": -15083000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2010-09-30 | sec_edgar |
| cashflow_financing | {"amount": -11785000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2010-06-30 | sec_edgar |
| cashflow_financing | {"amount": -20273000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2009-12-31 | sec_edgar |
| cashflow_investing | {"amount": -22166000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cu | 2018-09-30 | sec_edgar |
| cashflow_investing | {"amount": -9714000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cur | 2018-06-30 | sec_edgar |
| cashflow_investing | {"amount": -7507000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cur | 2018-03-31 | sec_edgar |
| cashflow_investing | {"amount": 10661000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cur | 2017-12-31 | sec_edgar |
| cashflow_investing | {"amount": 16025000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cur | 2017-09-30 | sec_edgar |
| cashflow_investing | {"amount": 30492000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cur | 2017-06-30 | sec_edgar |
| cashflow_investing | {"amount": 36029000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cur | 2017-03-31 | sec_edgar |
| cashflow_investing | {"amount": -155694000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "c | 2016-12-31 | sec_edgar |
| cashflow_investing | {"amount": -147364000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "c | 2016-09-30 | sec_edgar |
| cashflow_investing | {"amount": -127785000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "c | 2016-06-30 | sec_edgar |
| cashflow_investing | {"amount": -132572000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "c | 2016-03-31 | sec_edgar |
| cashflow_investing | {"amount": -70801000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cu | 2015-12-31 | sec_edgar |
| cashflow_investing | {"amount": -47451000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cu | 2015-09-30 | sec_edgar |
| cashflow_investing | {"amount": -24528000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cu | 2015-06-30 | sec_edgar |
| cashflow_investing | {"amount": -10650000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cu | 2015-03-31 | sec_edgar |
| cashflow_investing | {"amount": -432772000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "c | 2014-12-31 | sec_edgar |
| cashflow_investing | {"amount": -344615000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "c | 2014-09-30 | sec_edgar |
| cashflow_investing | {"amount": -360991000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "c | 2014-06-30 | sec_edgar |
| cashflow_investing | {"amount": -468664000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "c | 2014-03-31 | sec_edgar |
| cashflow_investing | {"amount": -21897000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cu | 2013-12-31 | sec_edgar |
| cashflow_investing | {"amount": -21345000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cu | 2013-09-30 | sec_edgar |
| cashflow_investing | {"amount": -15105000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cu | 2013-06-30 | sec_edgar |
| cashflow_investing | {"amount": -5725000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cur | 2013-03-31 | sec_edgar |
| cashflow_investing | {"amount": -123534000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "c | 2012-12-31 | sec_edgar |
| cashflow_investing | {"amount": -116649000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "c | 2012-09-30 | sec_edgar |
| cashflow_investing | {"amount": -110621000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "c | 2012-06-30 | sec_edgar |
| cashflow_investing | {"amount": -102571000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "c | 2012-03-31 | sec_edgar |
| cashflow_investing | {"amount": -33639000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cu | 2011-12-31 | sec_edgar |
| cashflow_investing | {"amount": -15495000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cu | 2011-09-30 | sec_edgar |
| cashflow_investing | {"amount": -14477000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cu | 2011-06-30 | sec_edgar |
| cashflow_investing | {"amount": -5884000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cur | 2011-03-31 | sec_edgar |
| cashflow_investing | {"amount": -29180000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cu | 2010-12-31 | sec_edgar |
| cashflow_investing | {"amount": -16950000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cu | 2010-09-30 | sec_edgar |
| cashflow_investing | {"amount": -7896000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cur | 2010-06-30 | sec_edgar |
| cashflow_investing | {"amount": -38597000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cu | 2009-12-31 | sec_edgar |
| cashflow_operating | {"amount": 8591000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "curr | 2018-09-30 | sec_edgar |
| cashflow_operating | {"amount": -40082000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cu | 2018-06-30 | sec_edgar |
| cashflow_operating | {"amount": -8918000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cur | 2018-03-31 | sec_edgar |
| cashflow_operating | {"amount": 114163000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cu | 2017-12-31 | sec_edgar |
| cashflow_operating | {"amount": 21154000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cur | 2017-09-30 | sec_edgar |
| cashflow_operating | {"amount": 10154000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cur | 2017-06-30 | sec_edgar |
| cashflow_operating | {"amount": -710000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "curr | 2017-03-31 | sec_edgar |
| cashflow_operating | {"amount": 151934000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cu | 2016-12-31 | sec_edgar |
| cashflow_operating | {"amount": 85103000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cur | 2016-09-30 | sec_edgar |
| cashflow_operating | {"amount": 41899000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cur | 2016-06-30 | sec_edgar |
| cashflow_operating | {"amount": 20554000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cur | 2016-03-31 | sec_edgar |
| cashflow_operating | {"amount": 45562000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cur | 2015-12-31 | sec_edgar |
| cashflow_operating | {"amount": 20882000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cur | 2015-09-30 | sec_edgar |
| cashflow_operating | {"amount": 12050000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cur | 2015-06-30 | sec_edgar |
| cashflow_operating | {"amount": 1640000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "curr | 2015-03-31 | sec_edgar |
| cashflow_operating | {"amount": 50353000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cur | 2014-12-31 | sec_edgar |
| cashflow_operating | {"amount": 38211000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cur | 2014-09-30 | sec_edgar |
| cashflow_operating | {"amount": 10573000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cur | 2014-06-30 | sec_edgar |
| cashflow_operating | {"amount": 29648000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cur | 2014-03-31 | sec_edgar |
| cashflow_operating | {"amount": 80717000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cur | 2013-12-31 | sec_edgar |