CIK 0001453814 · QID Q6806791
| Fakt | Wert | Zeit | Quelle |
|---|---|---|---|
| accounts_payable | {"amount": 10672000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2019-06-30 | sec_edgar |
| accounts_payable | {"amount": 8137000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2019-03-31 | sec_edgar |
| accounts_payable | {"amount": 7482000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2018-12-31 | sec_edgar |
| accounts_payable | {"amount": 6661000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2018-09-30 | sec_edgar |
| accounts_payable | {"amount": 6527000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2018-06-30 | sec_edgar |
| accounts_payable | {"amount": 8164000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2018-03-31 | sec_edgar |
| accounts_payable | {"amount": 5009000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2017-12-31 | sec_edgar |
| accounts_payable | {"amount": 2408000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2017-09-30 | sec_edgar |
| accounts_payable | {"amount": 12257000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2017-06-30 | sec_edgar |
| accounts_payable | {"amount": 6699000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2017-03-31 | sec_edgar |
| accounts_payable | {"amount": 6202000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2016-12-31 | sec_edgar |
| accounts_payable | {"amount": 1185000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2016-09-30 | sec_edgar |
| accounts_payable | {"amount": 1406000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2016-06-30 | sec_edgar |
| accounts_payable | {"amount": 1918000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2016-03-31 | sec_edgar |
| accounts_payable | {"amount": 6283000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2015-12-31 | sec_edgar |
| accounts_payable | {"amount": 2270000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2015-09-30 | sec_edgar |
| accounts_payable | {"amount": 2766000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2015-06-30 | sec_edgar |
| accounts_payable | {"amount": 6254000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2015-03-31 | sec_edgar |
| accounts_payable | {"amount": 3738000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2014-12-31 | sec_edgar |
| accounts_payable | {"amount": 3713000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2014-09-30 | sec_edgar |
| accounts_payable | {"amount": 5283000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2014-06-30 | sec_edgar |
| accounts_payable | {"amount": 5812000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2014-03-31 | sec_edgar |
| accounts_payable | {"amount": 7524000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2013-12-31 | sec_edgar |
| accounts_payable | {"amount": 3930000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2013-09-30 | sec_edgar |
| accounts_payable | {"amount": 1781000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2013-06-30 | sec_edgar |
| accounts_payable | {"amount": 1319000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2013-03-31 | sec_edgar |
| accounts_payable | {"amount": 2998000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2012-12-31 | sec_edgar |
| accounts_payable | {"amount": 3640000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2012-09-30 | sec_edgar |
| accounts_payable | {"amount": 2324000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2012-06-30 | sec_edgar |
| accounts_payable | {"amount": 1994000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2012-03-31 | sec_edgar |
| accounts_payable | {"amount": 3861000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2011-12-31 | sec_edgar |
| accounts_payable | {"amount": 2483000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2011-09-30 | sec_edgar |
| accounts_payable | {"amount": 1214000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2011-06-30 | sec_edgar |
| accounts_payable | {"amount": 2797000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2010-12-31 | sec_edgar |
| accounts_receivable | {"amount": 198166000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2019-06-30 | sec_edgar |
| accounts_receivable | {"amount": 177853000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2019-03-31 | sec_edgar |
| accounts_receivable | {"amount": 170744000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2018-12-31 | sec_edgar |
| accounts_receivable | {"amount": 163180000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2018-09-30 | sec_edgar |
| accounts_receivable | {"amount": 137169000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2018-06-30 | sec_edgar |
| accounts_receivable | {"amount": 133453000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2018-03-31 | sec_edgar |
| accounts_receivable | {"amount": 110685000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2017-12-31 | sec_edgar |
| accounts_receivable | {"amount": 105961000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2017-09-30 | sec_edgar |
| accounts_receivable | {"amount": 111233000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2017-06-30 | sec_edgar |
| accounts_receivable | {"amount": 102491000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2017-03-31 | sec_edgar |
| accounts_receivable | {"amount": 115216000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2016-12-31 | sec_edgar |
| accounts_receivable | {"amount": 114886000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2016-09-30 | sec_edgar |
| accounts_receivable | {"amount": 90433000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2016-06-30 | sec_edgar |
| accounts_receivable | {"amount": 77654000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2016-03-31 | sec_edgar |
| accounts_receivable | {"amount": 90590000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2015-12-31 | sec_edgar |
| accounts_receivable | {"amount": 86931000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2015-09-30 | sec_edgar |
| accounts_receivable | {"amount": 93507000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2015-06-30 | sec_edgar |
| accounts_receivable | {"amount": 80358000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2015-03-31 | sec_edgar |
| accounts_receivable | {"amount": 68475000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2014-12-31 | sec_edgar |
| accounts_receivable | {"amount": 50898000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2014-09-30 | sec_edgar |
| accounts_receivable | {"amount": 61971000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2014-06-30 | sec_edgar |
| accounts_receivable | {"amount": 66326000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2014-03-31 | sec_edgar |
| accounts_receivable | {"amount": 45534000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2013-12-31 | sec_edgar |
| accounts_receivable | {"amount": 40516000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2013-09-30 | sec_edgar |
| accounts_receivable | {"amount": 41639000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2013-06-30 | sec_edgar |
| accounts_receivable | {"amount": 48398000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2013-03-31 | sec_edgar |
| accounts_receivable | {"amount": 42359000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2012-12-31 | sec_edgar |
| accounts_receivable | {"amount": 31627000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2012-09-30 | sec_edgar |
| accounts_receivable | {"amount": 36067000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2012-06-30 | sec_edgar |
| accounts_receivable | {"amount": 30727000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2012-03-31 | sec_edgar |
| accounts_receivable | {"amount": 22970000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2011-12-31 | sec_edgar |
| accounts_receivable | {"amount": 19456000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2011-09-30 | sec_edgar |
| accounts_receivable | {"amount": 27840000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2011-06-30 | sec_edgar |
| accounts_receivable | {"amount": 34268000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2010-12-31 | sec_edgar |
| capex | {"amount": 32366000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2019-06-30 | sec_edgar |
| capex | {"amount": 18188000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2019-03-31 | sec_edgar |
| capex | {"amount": 40083000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2018-12-31 | sec_edgar |
| capex | {"amount": 28929000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2018-09-30 | sec_edgar |
| capex | {"amount": 19520000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2018-06-30 | sec_edgar |
| capex | {"amount": 11147000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2018-03-31 | sec_edgar |
| capex | {"amount": 44621000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2017-12-31 | sec_edgar |
| capex | {"amount": 30502000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2017-09-30 | sec_edgar |
| capex | {"amount": 16642000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2017-06-30 | sec_edgar |
| capex | {"amount": 6790000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2017-03-31 | sec_edgar |
| capex | {"amount": 25656000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2016-12-31 | sec_edgar |
| capex | {"amount": 15872000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2016-09-30 | sec_edgar |
| capex | {"amount": 13425000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2016-06-30 | sec_edgar |
| capex | {"amount": 7589000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2016-03-31 | sec_edgar |
| capex | {"amount": 19017000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2015-12-31 | sec_edgar |
| capex | {"amount": 11017000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2015-09-30 | sec_edgar |
| capex | {"amount": 5925000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2015-06-30 | sec_edgar |
| capex | {"amount": 3451000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2015-03-31 | sec_edgar |
| capex | {"amount": 15815000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2014-12-31 | sec_edgar |
| capex | {"amount": 13900000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2014-09-30 | sec_edgar |
| capex | {"amount": 11602000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2014-06-30 | sec_edgar |
| capex | {"amount": 7048000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2014-03-31 | sec_edgar |
| capex | {"amount": 30505000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2013-12-31 | sec_edgar |
| capex | {"amount": 18864000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2013-09-30 | sec_edgar |
| capex | {"amount": 6761000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2013-06-30 | sec_edgar |
| capex | {"amount": 2947000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2013-03-31 | sec_edgar |
| capex | {"amount": 5742000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2012-12-31 | sec_edgar |
| capex | {"amount": 3923000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2012-09-30 | sec_edgar |
| capex | {"amount": 3245000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2012-06-30 | sec_edgar |
| capex | {"amount": 1821000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2012-03-31 | sec_edgar |
| capex | {"amount": 4411000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2011-12-31 | sec_edgar |
| capex | {"amount": 2896000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2011-09-30 | sec_edgar |
| capex | {"amount": 1878000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2011-06-30 | sec_edgar |
| capex | {"amount": 495000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2011-03-31 | sec_edgar |
| capex | {"amount": 7407000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2010-12-31 | sec_edgar |
| capex | {"amount": 5609000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2010-09-30 | sec_edgar |
| capex | {"amount": 4447000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2010-06-30 | sec_edgar |
| capex | {"amount": 4765000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2009-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 139104000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2019-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 109052000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2019-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 105440000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2018-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 83496000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2018-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 120298000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2018-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 226588000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2018-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 237325000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2017-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 128435000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2017-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 110708000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2017-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 90422000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2017-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 93519000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2016-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 65165000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2016-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 64346000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2016-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 87669000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2016-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 49562000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2015-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 63179000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2015-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 43366000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2015-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 71472000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2015-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 39517000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2014-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 26654000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2014-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 35192000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2014-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 25406000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2014-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 22328000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2013-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 191645000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2013-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 38560000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2013-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 37291000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2013-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 32683000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2012-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 37404000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2012-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 58723000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2012-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 58387000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2012-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 45214000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2011-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 26049000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2011-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 21783000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2011-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 36519000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2011-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 16025000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2010-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 18425000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2010-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 19223000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2010-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 39449000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2009-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 9784000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2008-12-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 146327000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2019-06-30 | sec_edgar |
| cash_and_restricted_cash | {"amount": 116264000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2019-03-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 112645000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2018-12-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 89028000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCas | 2018-09-30 | sec_edgar |
| cash_and_restricted_cash | {"amount": 125821000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2018-06-30 | sec_edgar |
| cash_and_restricted_cash | {"amount": 232108000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2018-03-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 242843000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2017-12-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 133950000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2017-09-30 | sec_edgar |
| cash_and_restricted_cash | {"amount": 116221000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2017-06-30 | sec_edgar |
| cash_and_restricted_cash | {"amount": 95933000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCas | 2017-03-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 99279000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCas | 2016-12-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 70995000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCas | 2016-09-30 | sec_edgar |
| cash_and_restricted_cash | {"amount": 70175000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCas | 2016-06-30 | sec_edgar |
| cash_and_restricted_cash | {"amount": 55472000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCas | 2015-12-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 44636000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCas | 2014-12-31 | sec_edgar |
| cashflow_financing | {"amount": -32520000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2019-06-30 | sec_edgar |
| cashflow_financing | {"amount": -22414000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2019-03-31 | sec_edgar |
| cashflow_financing | {"amount": -290419000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "c | 2018-12-31 | sec_edgar |
| cashflow_financing | {"amount": -293675000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "c | 2018-09-30 | sec_edgar |
| cashflow_financing | {"amount": -11073000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2018-06-30 | sec_edgar |
| cashflow_financing | {"amount": -11389000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2018-03-31 | sec_edgar |
| cashflow_financing | {"amount": 99089000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cur | 2017-12-31 | sec_edgar |
| cashflow_financing | {"amount": 181000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "curre | 2017-09-30 | sec_edgar |
| cashflow_financing | {"amount": -1480000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cur | 2017-06-30 | sec_edgar |
| cashflow_financing | {"amount": -8930000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cur | 2017-03-31 | sec_edgar |
| cashflow_financing | {"amount": -3311000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cur | 2016-12-31 | sec_edgar |
| cashflow_financing | {"amount": -5078000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cur | 2016-09-30 | sec_edgar |
| cashflow_financing | {"amount": -8821000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cur | 2016-06-30 | sec_edgar |
| cashflow_financing | {"amount": -8818000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cur | 2016-03-31 | sec_edgar |
| cashflow_financing | {"amount": -40995000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2015-12-31 | sec_edgar |
| cashflow_financing | {"amount": -6528000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cur | 2015-09-30 | sec_edgar |
| cashflow_financing | {"amount": -4300000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cur | 2015-06-30 | sec_edgar |
| cashflow_financing | {"amount": -3501000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cur | 2015-03-31 | sec_edgar |
| cashflow_financing | {"amount": -19692000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2014-12-31 | sec_edgar |
| cashflow_financing | {"amount": -14528000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2014-09-30 | sec_edgar |
| cashflow_financing | {"amount": -21840000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2014-06-30 | sec_edgar |
| cashflow_financing | {"amount": -18087000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2014-03-31 | sec_edgar |
| cashflow_financing | {"amount": 282807000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2013-12-31 | sec_edgar |
| cashflow_financing | {"amount": 280363000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2013-09-30 | sec_edgar |
| cashflow_financing | {"amount": -3759000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cur | 2013-06-30 | sec_edgar |
| cashflow_financing | {"amount": 1707000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "curr | 2013-03-31 | sec_edgar |
| cashflow_financing | {"amount": 8912000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "curr | 2012-12-31 | sec_edgar |
| cashflow_financing | {"amount": 4136000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "curr | 2012-09-30 | sec_edgar |
| cashflow_financing | {"amount": 1849000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "curr | 2012-06-30 | sec_edgar |
| cashflow_financing | {"amount": 3123000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "curr | 2012-03-31 | sec_edgar |
| cashflow_financing | {"amount": 4293000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "curr | 2011-12-31 | sec_edgar |
| cashflow_financing | {"amount": -115000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "curr | 2011-09-30 | sec_edgar |
| cashflow_financing | {"amount": -519000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "curr | 2011-06-30 | sec_edgar |
| cashflow_financing | {"amount": 542000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "curre | 2011-03-31 | sec_edgar |
| cashflow_financing | {"amount": -1303000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cur | 2010-12-31 | sec_edgar |
| cashflow_financing | {"amount": -981000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "curr | 2010-09-30 | sec_edgar |
| cashflow_financing | {"amount": -846000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "curr | 2010-06-30 | sec_edgar |
| cashflow_financing | {"amount": 56025000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cur | 2009-12-31 | sec_edgar |
| cashflow_investing | {"amount": 35896000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cur | 2019-06-30 | sec_edgar |
| cashflow_investing | {"amount": 19724000, "concept": "us-gaap:NetCashProvidedByUsedInInvestingActivities", "cur | 2019-03-31 | sec_edgar |