Organization record
Willbros Group, Inc.\NEW\
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": 134560000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2018-03-31 | sec_edgar |
| accounts_receivable | {"amount": 142192000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2017-12-31 | sec_edgar |
| accounts_receivable | {"amount": 156589000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2017-09-30 | sec_edgar |
| accounts_receivable | {"amount": 130109000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2017-06-30 | sec_edgar |
| accounts_receivable | {"amount": 111189000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2017-03-31 | sec_edgar |
| accounts_receivable | {"amount": 112037000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2016-12-31 | sec_edgar |
| accounts_receivable | {"amount": 128008000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2016-09-30 | sec_edgar |
| accounts_receivable | {"amount": 141904000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2016-06-30 | sec_edgar |
| accounts_receivable | {"amount": 138893000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2016-03-31 | sec_edgar |
| accounts_receivable | {"amount": 149753000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2015-12-31 | sec_edgar |
| accounts_receivable | {"amount": 206392000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2015-09-30 | sec_edgar |
| accounts_receivable | {"amount": 228960000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2015-06-30 | sec_edgar |
| accounts_receivable | {"amount": 295774000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2015-03-31 | sec_edgar |
| accounts_receivable | {"amount": 266561000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2014-12-31 | sec_edgar |
| accounts_receivable | {"amount": 388359000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2014-09-30 | sec_edgar |
| accounts_receivable | {"amount": 415277000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2014-06-30 | sec_edgar |
| accounts_receivable | {"amount": 364513000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2014-03-31 | sec_edgar |
| accounts_receivable | {"amount": 365854000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2013-12-31 | sec_edgar |
| accounts_receivable | {"amount": 372389000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2013-09-30 | sec_edgar |
| accounts_receivable | {"amount": 334405000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2013-06-30 | sec_edgar |
| accounts_receivable | {"amount": 398345000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2013-03-31 | sec_edgar |
| accounts_receivable | {"amount": 380570000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2012-12-31 | sec_edgar |
| accounts_receivable | {"amount": 437045000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2012-09-30 | sec_edgar |
| accounts_receivable | {"amount": 321763000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2012-06-30 | sec_edgar |
| accounts_receivable | {"amount": 302349000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2012-03-31 | sec_edgar |
| accounts_receivable | {"amount": 246902000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2011-12-31 | sec_edgar |
| accounts_receivable | {"amount": 345441000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2011-09-30 | sec_edgar |
| accounts_receivable | {"amount": 304533000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2011-06-30 | sec_edgar |
| accounts_receivable | {"amount": 298281000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2010-12-31 | sec_edgar |
| capex | {"amount": 385000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2018-03-31 | sec_edgar |
| capex | {"amount": 2450000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2017-12-31 | sec_edgar |
| capex | {"amount": 2132000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2017-09-30 | sec_edgar |
| capex | {"amount": 1326000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2017-06-30 | sec_edgar |
| capex | {"amount": 493000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2017-03-31 | sec_edgar |
| capex | {"amount": 3794000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2016-12-31 | sec_edgar |
| capex | {"amount": 2528000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2016-09-30 | sec_edgar |
| capex | {"amount": 1900000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2016-06-30 | sec_edgar |
| capex | {"amount": 492000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2016-03-31 | sec_edgar |
| capex | {"amount": 2705000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2015-12-31 | sec_edgar |
| capex | {"amount": 2055000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2015-09-30 | sec_edgar |
| capex | {"amount": 1424000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2015-06-30 | sec_edgar |
| capex | {"amount": 1296000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2015-03-31 | sec_edgar |
| capex | {"amount": 11584000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2014-12-31 | sec_edgar |
| capex | {"amount": 11691000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2014-09-30 | sec_edgar |
| capex | {"amount": 8353000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2014-06-30 | sec_edgar |
| capex | {"amount": 3635000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2014-03-31 | sec_edgar |
| capex | {"amount": 12483000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2013-12-31 | sec_edgar |
| capex | {"amount": 9420000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2013-09-30 | sec_edgar |
| capex | {"amount": 4600000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2013-06-30 | sec_edgar |
| capex | {"amount": 2646000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2013-03-31 | sec_edgar |
| capex | {"amount": 12456000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2012-12-31 | sec_edgar |
| capex | {"amount": 10506000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2012-09-30 | sec_edgar |
| capex | {"amount": 7266000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2012-06-30 | sec_edgar |
| capex | {"amount": 3267000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2012-03-31 | sec_edgar |
| capex | {"amount": 10047000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2011-12-31 | sec_edgar |
| capex | {"amount": 9241000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2011-09-30 | sec_edgar |
| capex | {"amount": 6343000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2011-06-30 | sec_edgar |
| capex | {"amount": 1880000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2011-03-31 | sec_edgar |
| capex | {"amount": 15635000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2010-12-31 | sec_edgar |
| capex | {"amount": 13070000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2010-09-30 | sec_edgar |
| capex | {"amount": 8550000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2010-06-30 | sec_edgar |
| capex | {"amount": 11082000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2009-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 21364000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2018-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 33472000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2017-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 31294000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2017-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 41249000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2017-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 36693000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2017-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 41420000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2016-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 42259000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2016-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 48726000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2016-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 51686000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2016-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 58832000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2015-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 47837000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2015-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 67845000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2015-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 38361000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2015-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 22565000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2014-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 48935000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2014-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 28274000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2014-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 53877000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2014-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 42096000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2013-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 20075000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2013-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 53610000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2013-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 9698000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2013-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 48154000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2012-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 10888000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2012-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 36904000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2012-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 42370000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2012-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 52859000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2011-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 68600000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2011-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 93667000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2011-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 68264000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2011-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 111924000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2010-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 78957000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2010-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 134305000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2010-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 170691000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2009-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 189465000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2008-12-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 61837000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCas | 2018-03-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 73839000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCas | 2017-12-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 76884000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCas | 2017-03-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 81626000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCas | 2016-12-31 | sec_edgar |
| cashflow_financing | {"amount": 4517000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "curr | 2018-03-31 | sec_edgar |
| cashflow_financing | {"amount": 40115000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cur | 2017-12-31 | sec_edgar |
| cashflow_financing | {"amount": 9152000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "curr | 2017-09-30 | sec_edgar |
| cashflow_financing | {"amount": -2810000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cur | 2017-06-30 | sec_edgar |
| cashflow_financing | {"amount": -2454000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cur | 2017-03-31 | sec_edgar |
| cashflow_financing | {"amount": -8615000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cur | 2016-12-31 | sec_edgar |
| cashflow_financing | {"amount": -8570000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cur | 2016-09-30 | sec_edgar |
| cashflow_financing | {"amount": -6221000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cur | 2016-06-30 | sec_edgar |
| cashflow_financing | {"amount": -5720000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cur | 2016-03-31 | sec_edgar |
| cashflow_financing | {"amount": -166642000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "c | 2015-12-31 | sec_edgar |
| cashflow_financing | {"amount": -71463000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2015-09-30 | sec_edgar |
| cashflow_financing | {"amount": -72466000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2015-06-30 | sec_edgar |
| cashflow_financing | {"amount": -64623000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2015-03-31 | sec_edgar |
| cashflow_financing | {"amount": 1596000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "curr | 2014-12-31 | sec_edgar |
| cashflow_financing | {"amount": -35747000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2014-09-30 | sec_edgar |
| cashflow_financing | {"amount": -19683000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2014-06-30 | sec_edgar |
| cashflow_financing | {"amount": -23231000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2014-03-31 | sec_edgar |
| cashflow_financing | {"amount": -37630000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2013-12-31 | sec_edgar |
| cashflow_financing | {"amount": -5758000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cur | 2013-09-30 | sec_edgar |
| cashflow_financing | {"amount": -44135000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2013-06-30 | sec_edgar |
| cashflow_financing | {"amount": -58984000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2013-03-31 | sec_edgar |
| cashflow_financing | {"amount": 6574000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "curr | 2012-12-31 | sec_edgar |
| cashflow_financing | {"amount": -32380000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2012-09-30 | sec_edgar |
| cashflow_financing | {"amount": -60751000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2012-06-30 | sec_edgar |
| cashflow_financing | {"amount": -33003000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2012-03-31 | sec_edgar |
| cashflow_financing | {"amount": -147296000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "c | 2011-12-31 | sec_edgar |
| cashflow_financing | {"amount": -115793000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "c | 2011-09-30 | sec_edgar |
| cashflow_financing | {"amount": -90307000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2011-06-30 | sec_edgar |
| cashflow_financing | {"amount": -41867000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2011-03-31 | sec_edgar |
| cashflow_financing | {"amount": 297795000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2010-12-31 | sec_edgar |
| cashflow_financing | {"amount": 306886000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2010-09-30 | sec_edgar |
| cashflow_financing | {"amount": -13038000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2010-06-30 | sec_edgar |
| cashflow_financing | {"amount": -28481000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2009-12-31 | sec_edgar |
| cashflow_investing | {"amount": 9963000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "curr | 2018-03-31 | sec_edgar |
| cashflow_investing | {"amount": 2581000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "curr | 2017-12-31 | sec_edgar |
| cashflow_investing | {"amount": 2280000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "curr | 2017-09-30 | sec_edgar |
| cashflow_investing | {"amount": 1689000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "curr | 2017-06-30 | sec_edgar |
| cashflow_investing | {"amount": 1551000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "curr | 2017-03-31 | sec_edgar |
| cashflow_investing | {"amount": 10843000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cur | 2016-12-31 | sec_edgar |
| cashflow_investing | {"amount": 6639000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "curr | 2016-09-30 | sec_edgar |
| cashflow_investing | {"amount": 4751000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "curr | 2016-06-30 | sec_edgar |
| cashflow_investing | {"amount": -882000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "curr | 2016-03-31 | sec_edgar |
| cashflow_investing | {"amount": 209833000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cu | 2015-12-31 | sec_edgar |
| cashflow_investing | {"amount": 102962000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cu | 2015-09-30 | sec_edgar |
| cashflow_investing | {"amount": 101662000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cu | 2015-06-30 | sec_edgar |
| cashflow_investing | {"amount": 84173000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cur | 2015-03-31 | sec_edgar |
| cashflow_investing | {"amount": 39230000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cur | 2014-12-31 | sec_edgar |
| cashflow_investing | {"amount": 39562000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cur | 2014-09-30 | sec_edgar |
| cashflow_investing | {"amount": 41915000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cur | 2014-06-30 | sec_edgar |
| cashflow_investing | {"amount": 19259000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cur | 2014-03-31 | sec_edgar |
| cashflow_investing | {"amount": 25955000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cur | 2013-12-31 | sec_edgar |
| cashflow_investing | {"amount": 29822000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cur | 2013-09-30 | sec_edgar |
| cashflow_investing | {"amount": 34288000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cur | 2013-06-30 | sec_edgar |
| cashflow_investing | {"amount": 36817000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cur | 2013-03-31 | sec_edgar |
| cashflow_investing | {"amount": 22236000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cur | 2012-12-31 | sec_edgar |
| cashflow_investing | {"amount": 15673000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cur | 2012-09-30 | sec_edgar |
| cashflow_investing | {"amount": 17706000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cur | 2012-06-30 | sec_edgar |
| cashflow_investing | {"amount": 12437000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cur | 2012-03-31 | sec_edgar |
| cashflow_investing | {"amount": 58376000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cur | 2011-12-31 | sec_edgar |
| cashflow_investing | {"amount": 40884000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cur | 2011-09-30 | sec_edgar |
| cashflow_investing | {"amount": 19472000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cur | 2011-06-30 | sec_edgar |
| cashflow_investing | {"amount": 16231000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cur | 2011-03-31 | sec_edgar |
| cashflow_investing | {"amount": -404651000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "c | 2010-12-31 | sec_edgar |
| cashflow_investing | {"amount": -416085000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "c | 2010-09-30 | sec_edgar |
| cashflow_investing | {"amount": 4226000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "curr | 2010-06-30 | sec_edgar |
| cashflow_investing | {"amount": -34036000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cu | 2009-12-31 | sec_edgar |
| cashflow_operating | {"amount": -26343000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cu | 2018-03-31 | sec_edgar |
| cashflow_operating | {"amount": -51467000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cu | 2017-12-31 | sec_edgar |
| cashflow_operating | {"amount": -22600000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cu | 2017-09-30 | sec_edgar |
| cashflow_operating | {"amount": -22613000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cu | 2017-09-30 | sec_edgar |
| cashflow_operating | {"amount": 536000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "curre | 2017-06-30 | sec_edgar |
| cashflow_operating | {"amount": -3925000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cur | 2017-03-31 | sec_edgar |
| cashflow_operating | {"amount": -19611000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cu | 2016-12-31 | sec_edgar |
| cashflow_operating | {"amount": -15262000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cu | 2016-09-30 | sec_edgar |
| cashflow_operating | {"amount": -9564000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cur | 2016-06-30 | sec_edgar |
| cashflow_operating | {"amount": -1131000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cur | 2016-03-31 | sec_edgar |
| cashflow_operating | {"amount": -4195000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cur | 2015-12-31 | sec_edgar |
| cashflow_operating | {"amount": -5915000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cur | 2015-09-30 | sec_edgar |
| cashflow_operating | {"amount": 16175000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cur | 2015-06-30 | sec_edgar |
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| cashflow_operating | {"amount": -60106000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cu | 2014-12-31 | sec_edgar |
| cashflow_operating | {"amount": 2193000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "curr | 2014-09-30 | sec_edgar |
| cashflow_operating | {"amount": -37462000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cu | 2014-06-30 | sec_edgar |
| cashflow_operating | {"amount": 15062000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cur | 2014-03-31 | sec_edgar |
| cashflow_operating | {"amount": 13472000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivitiesContinu | 2013-12-31 | sec_edgar |
| cashflow_operating | {"amount": -58059000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cu | 2013-09-30 | sec_edgar |
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| cashflow_operating | {"amount": -22287000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cu | 2013-03-31 | sec_edgar |
| cashflow_operating | {"amount": -35738000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cu | 2012-12-31 | sec_edgar |
| cashflow_operating | {"amount": -28720000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cu | 2012-09-30 | sec_edgar |
| cashflow_operating | {"amount": 19787000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cur | 2012-06-30 | sec_edgar |
| cashflow_operating | {"amount": 7553000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "curr | 2012-03-31 | sec_edgar |
| cashflow_operating | {"amount": 62236000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivitiesContinu | 2011-12-31 | sec_edgar |
| cashflow_operating | {"amount": 8265000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "curr | 2011-09-30 | sec_edgar |
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| cashflow_operating | {"amount": -37202000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cu | 2011-03-31 | sec_edgar |
| cashflow_operating | {"amount": 46871000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cur | 2010-12-31 | sec_edgar |
| cashflow_operating | {"amount": 10532000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cur | 2010-09-30 | sec_edgar |
| cashflow_operating | {"amount": 37660000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cur | 2010-06-30 | sec_edgar |
| cashflow_operating | {"amount": 47304000, "concept": "us-gaap:NetCashProvidedByUsedInOperatingActivities", "cur | 2009-12-31 | sec_edgar |