CIK 0000719413
| Fakt | Wert | Zeit | Quelle |
|---|---|---|---|
| accounts_receivable | {"amount": 127416000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2026-06-30 | sec_edgar |
| accounts_receivable | {"amount": 215534000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2026-03-31 | sec_edgar |
| accounts_receivable | {"amount": 170230000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2025-12-31 | sec_edgar |
| accounts_receivable | {"amount": 102702000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD" | 2025-09-30 | sec_edgar |
| accounts_receivable | {"amount": 48002000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2025-06-30 | sec_edgar |
| accounts_receivable | {"amount": 59549000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2025-03-31 | sec_edgar |
| accounts_receivable | {"amount": 31515000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2024-12-31 | sec_edgar |
| accounts_receivable | {"amount": 40718000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2024-09-30 | sec_edgar |
| accounts_receivable | {"amount": 30242000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2024-06-30 | sec_edgar |
| accounts_receivable | {"amount": 30508000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2024-03-31 | sec_edgar |
| accounts_receivable | {"amount": 19400000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2023-12-31 | sec_edgar |
| accounts_receivable | {"amount": 16685000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2023-09-30 | sec_edgar |
| accounts_receivable | {"amount": 15595000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2023-06-30 | sec_edgar |
| accounts_receivable | {"amount": 28928000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2023-03-31 | sec_edgar |
| accounts_receivable | {"amount": 45100000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2022-12-31 | sec_edgar |
| accounts_receivable | {"amount": 12477000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2022-09-30 | sec_edgar |
| accounts_receivable | {"amount": 17828000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2022-06-30 | sec_edgar |
| accounts_receivable | {"amount": 33324000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2022-03-31 | sec_edgar |
| accounts_receivable | {"amount": 36437000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2021-12-31 | sec_edgar |
| accounts_receivable | {"amount": 32821000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2021-09-30 | sec_edgar |
| accounts_receivable | {"amount": 41311000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2021-06-30 | sec_edgar |
| accounts_receivable | {"amount": 35274000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2021-03-31 | sec_edgar |
| accounts_receivable | {"amount": 27864000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2020-12-31 | sec_edgar |
| accounts_receivable | {"amount": 28464000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2020-09-30 | sec_edgar |
| accounts_receivable | {"amount": 26003000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2020-06-30 | sec_edgar |
| accounts_receivable | {"amount": 6062000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2020-03-31 | sec_edgar |
| accounts_receivable | {"amount": 11952000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2019-12-31 | sec_edgar |
| accounts_receivable | {"amount": 6222000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2019-09-30 | sec_edgar |
| accounts_receivable | {"amount": 6877000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2019-06-30 | sec_edgar |
| accounts_receivable | {"amount": 9586000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2019-03-31 | sec_edgar |
| accounts_receivable | {"amount": 4184000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2018-12-31 | sec_edgar |
| accounts_receivable | {"amount": 12947000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2018-09-30 | sec_edgar |
| accounts_receivable | {"amount": 9717000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2018-06-30 | sec_edgar |
| accounts_receivable | {"amount": 19713000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2018-03-31 | sec_edgar |
| accounts_receivable | {"amount": 14805000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2017-12-31 | sec_edgar |
| accounts_receivable | {"amount": 6982000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2017-09-30 | sec_edgar |
| accounts_receivable | {"amount": 9183000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2017-06-30 | sec_edgar |
| accounts_receivable | {"amount": 17210000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2017-03-31 | sec_edgar |
| accounts_receivable | {"amount": 20082000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2016-12-31 | sec_edgar |
| accounts_receivable | {"amount": 26622000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2016-09-30 | sec_edgar |
| accounts_receivable | {"amount": 25667000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2016-06-30 | sec_edgar |
| accounts_receivable | {"amount": 30127000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2016-03-31 | sec_edgar |
| accounts_receivable | {"amount": 13490000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2015-12-31 | sec_edgar |
| accounts_receivable | {"amount": 10384000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2015-09-30 | sec_edgar |
| accounts_receivable | {"amount": 7781000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2015-06-30 | sec_edgar |
| accounts_receivable | {"amount": 27280000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2015-03-31 | sec_edgar |
| accounts_receivable | {"amount": 17696000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2014-12-31 | sec_edgar |
| accounts_receivable | {"amount": 17433000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2014-09-30 | sec_edgar |
| accounts_receivable | {"amount": 21033000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2014-06-30 | sec_edgar |
| accounts_receivable | {"amount": 26159000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2014-03-31 | sec_edgar |
| accounts_receivable | {"amount": 17672000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2013-12-31 | sec_edgar |
| accounts_receivable | {"amount": 34481000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2013-09-30 | sec_edgar |
| accounts_receivable | {"amount": 8306000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2013-06-30 | sec_edgar |
| accounts_receivable | {"amount": 11927000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2013-03-31 | sec_edgar |
| accounts_receivable | {"amount": 17555000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2012-12-31 | sec_edgar |
| accounts_receivable | {"amount": 21991000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2012-09-30 | sec_edgar |
| accounts_receivable | {"amount": 30484000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2012-06-30 | sec_edgar |
| accounts_receivable | {"amount": 5849000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2012-03-31 | sec_edgar |
| accounts_receivable | {"amount": 10996000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2011-12-31 | sec_edgar |
| accounts_receivable | {"amount": 29095000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2011-09-30 | sec_edgar |
| accounts_receivable | {"amount": 45121000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2011-06-30 | sec_edgar |
| accounts_receivable | {"amount": 50236000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2011-03-31 | sec_edgar |
| accounts_receivable | {"amount": 36840000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2010-12-31 | sec_edgar |
| accounts_receivable | {"amount": 25141000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2009-12-31 | sec_edgar |
| capex | {"amount": 78407000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2026-06-30 | sec_edgar |
| capex | {"amount": 39265000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2026-03-31 | sec_edgar |
| capex | {"amount": 252389000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cu | 2025-12-31 | sec_edgar |
| capex | {"amount": 170043000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cu | 2025-09-30 | sec_edgar |
| capex | {"amount": 80514000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2025-06-30 | sec_edgar |
| capex | {"amount": 37838000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2025-03-31 | sec_edgar |
| capex | {"amount": 214492000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cu | 2024-12-31 | sec_edgar |
| capex | {"amount": 153708000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cu | 2024-09-30 | sec_edgar |
| capex | {"amount": 98009000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2024-06-30 | sec_edgar |
| capex | {"amount": 47589000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2024-03-31 | sec_edgar |
| capex | {"amount": 223887000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cu | 2023-12-31 | sec_edgar |
| capex | {"amount": 161265000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cu | 2023-09-30 | sec_edgar |
| capex | {"amount": 105911000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cu | 2023-06-30 | sec_edgar |
| capex | {"amount": 54443000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2023-03-31 | sec_edgar |
| capex | {"amount": 149378000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cu | 2022-12-31 | sec_edgar |
| capex | {"amount": 93237000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2022-09-30 | sec_edgar |
| capex | {"amount": 55807000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2022-06-30 | sec_edgar |
| capex | {"amount": 21478000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2022-03-31 | sec_edgar |
| capex | {"amount": 109048000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cu | 2021-12-31 | sec_edgar |
| capex | {"amount": 80210000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2021-09-30 | sec_edgar |
| capex | {"amount": 53311000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2021-06-30 | sec_edgar |
| capex | {"amount": 21413000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2021-03-31 | sec_edgar |
| capex | {"amount": 91016000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2020-12-31 | sec_edgar |
| capex | {"amount": 54382000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2020-09-30 | sec_edgar |
| capex | {"amount": 30689000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2020-06-30 | sec_edgar |
| capex | {"amount": 19870000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2020-03-31 | sec_edgar |
| capex | {"amount": 121421000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cu | 2019-12-31 | sec_edgar |
| capex | {"amount": 97338000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2019-09-30 | sec_edgar |
| capex | {"amount": 71245000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2019-06-30 | sec_edgar |
| capex | {"amount": 33071000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2019-03-31 | sec_edgar |
| capex | {"amount": 136933000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cu | 2018-12-31 | sec_edgar |
| capex | {"amount": 83285000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2018-09-30 | sec_edgar |
| capex | {"amount": 43304000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2018-06-30 | sec_edgar |
| capex | {"amount": 17635000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2018-03-31 | sec_edgar |
| capex | {"amount": 98038000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2017-12-31 | sec_edgar |
| capex | {"amount": 70390000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2017-09-30 | sec_edgar |
| capex | {"amount": 45964000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2017-06-30 | sec_edgar |
| capex | {"amount": 21658000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2017-03-31 | sec_edgar |
| capex | {"amount": 164788000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cu | 2016-12-31 | sec_edgar |
| capex | {"amount": 120236000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cu | 2016-09-30 | sec_edgar |
| capex | {"amount": 76960000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2016-06-30 | sec_edgar |
| capex | {"amount": 34654000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2016-03-31 | sec_edgar |
| capex | {"amount": 137443000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cu | 2015-12-31 | sec_edgar |
| capex | {"amount": 95399000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2015-09-30 | sec_edgar |
| capex | {"amount": 58272000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2015-06-30 | sec_edgar |
| capex | {"amount": 26958000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2015-03-31 | sec_edgar |
| capex | {"amount": 122537000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cu | 2014-12-31 | sec_edgar |
| capex | {"amount": 90697000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2014-09-30 | sec_edgar |
| capex | {"amount": 57461000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2014-06-30 | sec_edgar |
| capex | {"amount": 26867000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2014-03-31 | sec_edgar |
| capex | {"amount": 150736000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cu | 2013-12-31 | sec_edgar |
| capex | {"amount": 112806000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cu | 2013-09-30 | sec_edgar |
| capex | {"amount": 60291000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2013-06-30 | sec_edgar |
| capex | {"amount": 25753000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2013-03-31 | sec_edgar |
| capex | {"amount": 113096000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cu | 2012-12-31 | sec_edgar |
| capex | {"amount": 81318000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2012-09-30 | sec_edgar |
| capex | {"amount": 51535000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2012-06-30 | sec_edgar |
| capex | {"amount": 24652000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2012-03-31 | sec_edgar |
| capex | {"amount": 87546000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2011-12-31 | sec_edgar |
| capex | {"amount": 64381000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2011-09-30 | sec_edgar |
| capex | {"amount": 40580000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2011-06-30 | sec_edgar |
| capex | {"amount": 21831000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2011-03-31 | sec_edgar |
| capex | {"amount": 67414000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2010-12-31 | sec_edgar |
| capex | {"amount": 48725000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2010-09-30 | sec_edgar |
| capex | {"amount": 27864000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2010-06-30 | sec_edgar |
| capex | {"amount": 6732000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2010-03-31 | sec_edgar |
| capex | {"amount": 27704000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2009-12-31 | sec_edgar |
| capex | {"amount": 17337000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2009-09-30 | sec_edgar |
| capex | {"amount": 9267000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "curr | 2009-06-30 | sec_edgar |
| capex | {"amount": 64935000, "concept": "us-gaap:PaymentsToAcquirePropertyPlantAndEquipment", "cur | 2008-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 483482000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2026-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 587550000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2026-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 241558000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2025-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 133910000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2025-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 296565000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2025-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 23668000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2025-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 26868000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2024-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 22273000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2024-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 24585000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2024-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 80169000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2024-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 106374000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2023-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 100685000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2023-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 106786000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2023-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 95939000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2023-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 104743000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2022-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 144669000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2022-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 198193000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2022-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 212029000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2022-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 210010000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2021-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 190904000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2021-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 181494000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2021-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 139750000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2021-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 129830000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2020-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 98669000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2020-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 75923000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2020-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 215715000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2020-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 62452000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2019-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 32995000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2019-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 9434000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2019-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 11797000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2019-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 27389000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2018-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 60856000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2018-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 239722000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2018-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 212569000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2018-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 186107000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2017-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 173999000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2017-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 165211000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2017-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 176786000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2017-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 171977000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2016-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 167844000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2016-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 143613000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2016-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 134018000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2016-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 155209000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2015-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 174454000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2015-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 191574000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2015-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 196231000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2015-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 209665000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2014-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 222360000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2014-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 222083000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2014-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 207642000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2014-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 212175000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2013-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 237836000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2013-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 296375000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2013-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 168614000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2013-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 190984000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2012-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 232194000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2012-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 233327000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2012-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 278504000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2012-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 266463000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2011-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 413743000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2011-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 377436000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2011-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 321662000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2011-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 283606000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2010-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 216577000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2010-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 197378000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2010-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 116342000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currenc | 2010-03-31 | sec_edgar |