CIK 0000792977 · QID Q16974741
| Fakt | Wert | Zeit | Quelle |
|---|---|---|---|
| accounts_payable | {"amount": 9742000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2020-09-30 | sec_edgar |
| accounts_payable | {"amount": 12944000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2020-06-30 | sec_edgar |
| accounts_payable | {"amount": 16520000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2020-03-31 | sec_edgar |
| accounts_payable | {"amount": 27021000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2019-12-31 | sec_edgar |
| accounts_payable | {"amount": 26554000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2019-09-30 | sec_edgar |
| accounts_payable | {"amount": 26946000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2019-06-30 | sec_edgar |
| accounts_payable | {"amount": 21535000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2019-03-31 | sec_edgar |
| accounts_payable | {"amount": 14487000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2018-12-31 | sec_edgar |
| accounts_payable | {"amount": 30331000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2018-09-30 | sec_edgar |
| accounts_payable | {"amount": 10738000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2018-06-30 | sec_edgar |
| accounts_payable | {"amount": 17371000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2018-03-31 | sec_edgar |
| accounts_payable | {"amount": 7717000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2017-12-31 | sec_edgar |
| accounts_payable | {"amount": 8511000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2017-09-30 | sec_edgar |
| accounts_payable | {"amount": 8154000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2017-06-30 | sec_edgar |
| accounts_payable | {"amount": 7591000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2017-03-31 | sec_edgar |
| accounts_payable | {"amount": 3684000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2016-12-31 | sec_edgar |
| accounts_payable | {"amount": 4742000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2016-09-30 | sec_edgar |
| accounts_payable | {"amount": 8653000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2016-06-30 | sec_edgar |
| accounts_payable | {"amount": 3427000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2016-03-31 | sec_edgar |
| accounts_payable | {"amount": 4906000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2015-12-31 | sec_edgar |
| accounts_payable | {"amount": 3661000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2015-09-30 | sec_edgar |
| accounts_payable | {"amount": 6147000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2015-06-30 | sec_edgar |
| accounts_payable | {"amount": 5958000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2015-03-31 | sec_edgar |
| accounts_payable | {"amount": 7301000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2014-12-31 | sec_edgar |
| accounts_payable | {"amount": 1899000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2014-09-30 | sec_edgar |
| accounts_payable | {"amount": 3525000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2014-06-30 | sec_edgar |
| accounts_payable | {"amount": 5125000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2014-03-31 | sec_edgar |
| accounts_payable | {"amount": 2629000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2013-12-31 | sec_edgar |
| accounts_payable | {"amount": 1001000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2013-09-30 | sec_edgar |
| accounts_payable | {"amount": 2443000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2013-06-30 | sec_edgar |
| accounts_payable | {"amount": 2325000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2013-03-31 | sec_edgar |
| accounts_payable | {"amount": 3515000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2012-12-31 | sec_edgar |
| accounts_payable | {"amount": 3620000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2012-09-30 | sec_edgar |
| accounts_payable | {"amount": 3757000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2012-06-30 | sec_edgar |
| accounts_payable | {"amount": 3398000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2012-03-31 | sec_edgar |
| accounts_payable | {"amount": 3732000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2011-12-31 | sec_edgar |
| accounts_payable | {"amount": 4601000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2011-09-30 | sec_edgar |
| accounts_payable | {"amount": 2549000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2011-06-30 | sec_edgar |
| accounts_payable | {"amount": 1008000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2011-03-31 | sec_edgar |
| accounts_payable | {"amount": 4553000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2010-12-31 | sec_edgar |
| accounts_payable | {"amount": 2311000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2010-09-30 | sec_edgar |
| accounts_payable | {"amount": 3855000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2010-06-30 | sec_edgar |
| accounts_payable | {"amount": 5432000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2009-12-31 | sec_edgar |
| accounts_receivable | {"amount": 67608000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2020-09-30 | sec_edgar |
| accounts_receivable | {"amount": 65104000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2020-06-30 | sec_edgar |
| accounts_receivable | {"amount": 106484000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2020-03-31 | sec_edgar |
| accounts_receivable | {"amount": 94163000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2019-12-31 | sec_edgar |
| accounts_receivable | {"amount": 77588000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2019-09-30 | sec_edgar |
| accounts_receivable | {"amount": 83183000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2019-06-30 | sec_edgar |
| accounts_receivable | {"amount": 83334000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2019-03-31 | sec_edgar |
| accounts_receivable | {"amount": 75347000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2018-12-31 | sec_edgar |
| accounts_receivable | {"amount": 85091000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2018-09-30 | sec_edgar |
| accounts_receivable | {"amount": 103353000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2018-06-30 | sec_edgar |
| accounts_receivable | {"amount": 99945000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2018-03-31 | sec_edgar |
| accounts_receivable | {"amount": 91460000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2017-12-31 | sec_edgar |
| accounts_receivable | {"amount": 97762000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2017-09-30 | sec_edgar |
| accounts_receivable | {"amount": 89462000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2017-06-30 | sec_edgar |
| accounts_receivable | {"amount": 85233000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2017-03-31 | sec_edgar |
| accounts_receivable | {"amount": 92375000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2016-12-31 | sec_edgar |
| accounts_receivable | {"amount": 70079000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2016-09-30 | sec_edgar |
| accounts_receivable | {"amount": 66086000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2016-06-30 | sec_edgar |
| accounts_receivable | {"amount": 82754000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2016-03-31 | sec_edgar |
| accounts_receivable | {"amount": 85678000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2015-12-31 | sec_edgar |
| accounts_receivable | {"amount": 73689000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2015-09-30 | sec_edgar |
| accounts_receivable | {"amount": 57954000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2015-06-30 | sec_edgar |
| accounts_receivable | {"amount": 56176000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2015-03-31 | sec_edgar |
| accounts_receivable | {"amount": 38172000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2014-12-31 | sec_edgar |
| accounts_receivable | {"amount": 10873000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2014-09-30 | sec_edgar |
| accounts_receivable | {"amount": 10581000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2014-06-30 | sec_edgar |
| accounts_receivable | {"amount": 10115000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2014-03-31 | sec_edgar |
| accounts_receivable | {"amount": 6842000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2013-12-31 | sec_edgar |
| accounts_receivable | {"amount": 8778000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2013-09-30 | sec_edgar |
| accounts_receivable | {"amount": 8490000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2013-06-30 | sec_edgar |
| accounts_receivable | {"amount": 8519000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2013-03-31 | sec_edgar |
| accounts_receivable | {"amount": 6410000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2012-12-31 | sec_edgar |
| accounts_receivable | {"amount": 7363000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2012-09-30 | sec_edgar |
| accounts_receivable | {"amount": 5778000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2012-06-30 | sec_edgar |
| accounts_receivable | {"amount": 6278000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2012-03-31 | sec_edgar |
| accounts_receivable | {"amount": 5932000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2011-12-31 | sec_edgar |
| accounts_receivable | {"amount": 7069000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2011-09-30 | sec_edgar |
| accounts_receivable | {"amount": 4813000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2011-06-30 | sec_edgar |
| accounts_receivable | {"amount": 6509000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2011-03-31 | sec_edgar |
| accounts_receivable | {"amount": 5785000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2010-12-31 | sec_edgar |
| accounts_receivable | {"amount": 7648000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2010-09-30 | sec_edgar |
| accounts_receivable | {"amount": 14230000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2010-06-30 | sec_edgar |
| accounts_receivable | {"amount": 27350000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2009-12-31 | sec_edgar |
| capex | {"amount": 475000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2020-09-30 | sec_edgar |
| capex | {"amount": 68000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curren | 2020-06-30 | sec_edgar |
| capex | {"amount": 68000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curren | 2020-03-31 | sec_edgar |
| capex | {"amount": 2544000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2019-12-31 | sec_edgar |
| capex | {"amount": 2098000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2019-09-30 | sec_edgar |
| capex | {"amount": 1907000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2019-06-30 | sec_edgar |
| capex | {"amount": 1794000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2019-03-31 | sec_edgar |
| capex | {"amount": 2534000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2018-12-31 | sec_edgar |
| capex | {"amount": 1913000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2018-09-30 | sec_edgar |
| capex | {"amount": 1553000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2018-06-30 | sec_edgar |
| capex | {"amount": 923000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2018-03-31 | sec_edgar |
| capex | {"amount": 8988000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2017-12-31 | sec_edgar |
| capex | {"amount": 6573000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2017-09-30 | sec_edgar |
| capex | {"amount": 2672000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2017-06-30 | sec_edgar |
| capex | {"amount": 658000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2017-03-31 | sec_edgar |
| capex | {"amount": 5460000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2016-12-31 | sec_edgar |
| capex | {"amount": 3360000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2016-09-30 | sec_edgar |
| capex | {"amount": 2587000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2016-06-30 | sec_edgar |
| capex | {"amount": 677000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2015-06-30 | sec_edgar |
| capex | {"amount": 55000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curren | 2015-03-31 | sec_edgar |
| capex | {"amount": 147000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2014-12-31 | sec_edgar |
| capex | {"amount": 144000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2014-09-30 | sec_edgar |
| capex | {"amount": 135000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2014-06-30 | sec_edgar |
| capex | {"amount": 124000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2014-03-31 | sec_edgar |
| capex | {"amount": 1632000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2013-12-31 | sec_edgar |
| capex | {"amount": 1206000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2013-09-30 | sec_edgar |
| capex | {"amount": 23000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curren | 2013-03-31 | sec_edgar |
| capex | {"amount": 47000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curren | 2012-12-31 | sec_edgar |
| capex | {"amount": 47000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curren | 2012-09-30 | sec_edgar |
| capex | {"amount": 47000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curren | 2012-06-30 | sec_edgar |
| capex | {"amount": 47000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curren | 2012-03-31 | sec_edgar |
| capex | {"amount": 507000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2011-12-31 | sec_edgar |
| capex | {"amount": 415000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2011-09-30 | sec_edgar |
| capex | {"amount": 212000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2011-06-30 | sec_edgar |
| capex | {"amount": 76000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curren | 2011-03-31 | sec_edgar |
| capex | {"amount": 1223000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2010-12-31 | sec_edgar |
| capex | {"amount": 1100000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2010-09-30 | sec_edgar |
| capex | {"amount": 643000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2010-06-30 | sec_edgar |
| capex | {"amount": 217000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2010-03-31 | sec_edgar |
| capex | {"amount": 2835000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2009-12-31 | sec_edgar |
| capex | {"amount": 1368000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2009-09-30 | sec_edgar |
| capex | {"amount": 852000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curre | 2009-06-30 | sec_edgar |
| capex | {"amount": 8178000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2008-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 97984000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2020-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 98521000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2020-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 54455000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2020-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 113009000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2019-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 119800000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2019-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 150461000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2019-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 137917000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2019-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 253256000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2018-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 287166000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2018-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 212499000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2018-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 231737000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2018-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 162855000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2017-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 257914000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2017-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 260119000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2017-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 252854000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2017-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 274305000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2016-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 305279000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2016-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 251110000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2016-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 203389000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2016-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 228705000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2015-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 167530000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2015-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 89884000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2015-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 243801000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2015-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 119296000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2014-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 196154000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2014-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 202057000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2014-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 200916000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2014-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 26986000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2013-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 30946000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2013-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 27802000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2013-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 33845000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2013-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 46293000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2012-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 42900000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2012-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 30678000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2012-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 37619000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2012-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 63474000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2011-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 75777000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2011-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 79956000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2011-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 77318000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2011-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 112646000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2010-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 104384000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2010-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 135793000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2010-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 212747000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2010-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 50126000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2009-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 62302000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2009-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 70226000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2009-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 64182000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2008-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 28210000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2007-12-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 98479000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCas | 2020-09-30 | sec_edgar |
| cash_and_restricted_cash | {"amount": 99016000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCas | 2020-06-30 | sec_edgar |
| cash_and_restricted_cash | {"amount": 54950000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCas | 2020-03-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 113504000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2019-12-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 120295000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2019-09-30 | sec_edgar |
| cash_and_restricted_cash | {"amount": 150956000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2019-06-30 | sec_edgar |
| cash_and_restricted_cash | {"amount": 138412000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2019-03-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 253751000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2018-12-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 287661000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2018-09-30 | sec_edgar |
| cash_and_restricted_cash | {"amount": 212994000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2018-06-30 | sec_edgar |
| cash_and_restricted_cash | {"amount": 232393000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2018-03-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 192770000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2017-12-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 210550000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2017-09-30 | sec_edgar |
| cash_and_restricted_cash | {"amount": 200150000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2017-06-30 | sec_edgar |
| cash_and_restricted_cash | {"amount": 255347000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2017-03-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 276898000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2016-12-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 231298000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCa | 2015-12-31 | sec_edgar |
| cashflow_financing | {"amount": -619000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "curr | 2020-09-30 | sec_edgar |
| cashflow_financing | {"amount": -712000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "curr | 2020-06-30 | sec_edgar |
| cashflow_financing | {"amount": -1227000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cur | 2020-03-31 | sec_edgar |
| cashflow_financing | {"amount": -35513000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2019-12-31 | sec_edgar |
| cashflow_financing | {"amount": -36133000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2019-09-30 | sec_edgar |
| cashflow_financing | {"amount": -36041000, "concept": "us-gaap:NetCashProvidedByUsedInFinancingActivities", "cu | 2019-06-30 | sec_edgar |