CIK 0000785557
| Fakt | Wert | Zeit | Quelle |
|---|---|---|---|
| accounts_payable | {"amount": 7600000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2026-06-30 | sec_edgar |
| accounts_payable | {"amount": 9432000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2026-03-31 | sec_edgar |
| accounts_payable | {"amount": 9904000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2025-12-31 | sec_edgar |
| accounts_payable | {"amount": 12299000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2025-09-30 | sec_edgar |
| accounts_payable | {"amount": 9894000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2025-06-30 | sec_edgar |
| accounts_payable | {"amount": 12985000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2025-03-31 | sec_edgar |
| accounts_payable | {"amount": 13291000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2024-12-31 | sec_edgar |
| accounts_payable | {"amount": 13421000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2024-09-30 | sec_edgar |
| accounts_payable | {"amount": 12513000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2024-06-30 | sec_edgar |
| accounts_payable | {"amount": 13398000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2024-03-31 | sec_edgar |
| accounts_payable | {"amount": 9213000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2023-12-31 | sec_edgar |
| accounts_payable | {"amount": 12603000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2023-09-30 | sec_edgar |
| accounts_payable | {"amount": 15559000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2023-06-30 | sec_edgar |
| accounts_payable | {"amount": 16489000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2022-12-31 | sec_edgar |
| accounts_payable | {"amount": 11886000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2022-09-30 | sec_edgar |
| accounts_payable | {"amount": 18614000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2022-06-30 | sec_edgar |
| accounts_payable | {"amount": 27300000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2022-03-31 | sec_edgar |
| accounts_payable | {"amount": 14198000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2021-12-31 | sec_edgar |
| accounts_payable | {"amount": 16684000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2021-09-30 | sec_edgar |
| accounts_payable | {"amount": 15990000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2021-06-30 | sec_edgar |
| accounts_payable | {"amount": 15891000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2021-03-31 | sec_edgar |
| accounts_payable | {"amount": 14195000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2020-12-31 | sec_edgar |
| accounts_payable | {"amount": 14645000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2020-09-30 | sec_edgar |
| accounts_payable | {"amount": 11827000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2020-06-30 | sec_edgar |
| accounts_payable | {"amount": 11604000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2020-03-31 | sec_edgar |
| accounts_payable | {"amount": 9908000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2019-12-31 | sec_edgar |
| accounts_payable | {"amount": 10054000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2019-09-30 | sec_edgar |
| accounts_payable | {"amount": 9290000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2019-06-30 | sec_edgar |
| accounts_payable | {"amount": 3818000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2019-03-31 | sec_edgar |
| accounts_payable | {"amount": 3853000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2018-12-31 | sec_edgar |
| accounts_payable | {"amount": 3393000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2018-09-30 | sec_edgar |
| accounts_payable | {"amount": 3890000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2018-06-30 | sec_edgar |
| accounts_payable | {"amount": 4914000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2018-03-31 | sec_edgar |
| accounts_payable | {"amount": 4070000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2017-12-31 | sec_edgar |
| accounts_payable | {"amount": 5205000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2017-09-30 | sec_edgar |
| accounts_payable | {"amount": 5001000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2017-06-30 | sec_edgar |
| accounts_payable | {"amount": 5714000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2017-03-31 | sec_edgar |
| accounts_payable | {"amount": 5174000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2016-12-31 | sec_edgar |
| accounts_payable | {"amount": 4324000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2016-09-30 | sec_edgar |
| accounts_payable | {"amount": 2983000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2016-06-30 | sec_edgar |
| accounts_payable | {"amount": 979000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2016-03-31 | sec_edgar |
| accounts_payable | {"amount": 950000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2015-12-31 | sec_edgar |
| accounts_payable | {"amount": 87000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2015-09-30 | sec_edgar |
| accounts_payable | {"amount": 128000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2015-06-30 | sec_edgar |
| accounts_payable | {"amount": 107000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2015-03-31 | sec_edgar |
| accounts_payable | {"amount": 599000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2014-12-31 | sec_edgar |
| accounts_payable | {"amount": 779000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2014-09-30 | sec_edgar |
| accounts_payable | {"amount": 1424000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2014-06-30 | sec_edgar |
| accounts_payable | {"amount": 1343000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2014-03-31 | sec_edgar |
| accounts_payable | {"amount": 1505000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2013-12-31 | sec_edgar |
| accounts_payable | {"amount": 1396000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2013-09-30 | sec_edgar |
| accounts_payable | {"amount": 508000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2013-06-30 | sec_edgar |
| accounts_payable | {"amount": 2333000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2013-03-31 | sec_edgar |
| accounts_payable | {"amount": 2468000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2012-12-31 | sec_edgar |
| accounts_payable | {"amount": 655000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2012-09-30 | sec_edgar |
| accounts_payable | {"amount": 2389000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2012-06-30 | sec_edgar |
| accounts_payable | {"amount": 2739000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2012-03-31 | sec_edgar |
| accounts_payable | {"amount": 2425000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2011-12-31 | sec_edgar |
| accounts_payable | {"amount": 1983000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2011-09-30 | sec_edgar |
| accounts_payable | {"amount": 1841000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2011-06-30 | sec_edgar |
| accounts_payable | {"amount": 1887000, "concept": "us-gaap:AccountsPayableCurrent", "currency": "USD"} | 2010-09-30 | sec_edgar |
| accounts_receivable | {"amount": 24408000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2026-06-30 | sec_edgar |
| accounts_receivable | {"amount": 33642000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2026-03-31 | sec_edgar |
| accounts_receivable | {"amount": 35842000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2025-12-31 | sec_edgar |
| accounts_receivable | {"amount": 38394000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2025-09-30 | sec_edgar |
| accounts_receivable | {"amount": 44916000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2025-06-30 | sec_edgar |
| accounts_receivable | {"amount": 51713000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2025-03-31 | sec_edgar |
| accounts_receivable | {"amount": 64270000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2024-12-31 | sec_edgar |
| accounts_receivable | {"amount": 49849000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2024-09-30 | sec_edgar |
| accounts_receivable | {"amount": 58341000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2024-06-30 | sec_edgar |
| accounts_receivable | {"amount": 55457000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2024-03-31 | sec_edgar |
| accounts_receivable | {"amount": 55577000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2023-12-31 | sec_edgar |
| accounts_receivable | {"amount": 59119000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2023-09-30 | sec_edgar |
| accounts_receivable | {"amount": 59119000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2023-06-30 | sec_edgar |
| accounts_receivable | {"amount": 40496000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2022-12-31 | sec_edgar |
| accounts_receivable | {"amount": 40496000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2022-09-30 | sec_edgar |
| accounts_receivable | {"amount": 50337000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2022-06-30 | sec_edgar |
| accounts_receivable | {"amount": 62152000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2022-03-31 | sec_edgar |
| accounts_receivable | {"amount": 46843000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2021-12-31 | sec_edgar |
| accounts_receivable | {"amount": 33447000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2021-09-30 | sec_edgar |
| accounts_receivable | {"amount": 36409000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2021-06-30 | sec_edgar |
| accounts_receivable | {"amount": 41675000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2021-03-31 | sec_edgar |
| accounts_receivable | {"amount": 44885000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2020-12-31 | sec_edgar |
| accounts_receivable | {"amount": 32541000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2020-09-30 | sec_edgar |
| accounts_receivable | {"amount": 29635000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2020-06-30 | sec_edgar |
| accounts_receivable | {"amount": 34948000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2020-03-31 | sec_edgar |
| accounts_receivable | {"amount": 27995000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2019-12-31 | sec_edgar |
| accounts_receivable | {"amount": 23226000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2019-09-30 | sec_edgar |
| accounts_receivable | {"amount": 24024000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2019-06-30 | sec_edgar |
| accounts_receivable | {"amount": 9396000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2019-03-31 | sec_edgar |
| accounts_receivable | {"amount": 14123000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2018-12-31 | sec_edgar |
| accounts_receivable | {"amount": 10280000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2018-09-30 | sec_edgar |
| accounts_receivable | {"amount": 12420000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2018-06-30 | sec_edgar |
| accounts_receivable | {"amount": 12338000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2018-03-31 | sec_edgar |
| accounts_receivable | {"amount": 12843000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2017-12-31 | sec_edgar |
| accounts_receivable | {"amount": 11911000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2017-09-30 | sec_edgar |
| accounts_receivable | {"amount": 8624000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2017-06-30 | sec_edgar |
| accounts_receivable | {"amount": 8871000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2017-03-31 | sec_edgar |
| accounts_receivable | {"amount": 7292000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2016-12-31 | sec_edgar |
| accounts_receivable | {"amount": 6637000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2016-09-30 | sec_edgar |
| accounts_receivable | {"amount": 7276000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2016-06-30 | sec_edgar |
| accounts_receivable | {"amount": 3354000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2016-03-31 | sec_edgar |
| accounts_receivable | {"amount": 3373000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2015-12-31 | sec_edgar |
| accounts_receivable | {"amount": 3286000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2015-09-30 | sec_edgar |
| accounts_receivable | {"amount": 3079000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2015-06-30 | sec_edgar |
| accounts_receivable | {"amount": 3231000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2015-03-31 | sec_edgar |
| accounts_receivable | {"amount": 12277000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2014-12-31 | sec_edgar |
| accounts_receivable | {"amount": 12372000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2014-09-30 | sec_edgar |
| accounts_receivable | {"amount": 12254000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2014-06-30 | sec_edgar |
| accounts_receivable | {"amount": 12488000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2014-03-31 | sec_edgar |
| accounts_receivable | {"amount": 13201000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2013-12-31 | sec_edgar |
| accounts_receivable | {"amount": 11943000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2013-09-30 | sec_edgar |
| accounts_receivable | {"amount": 12510000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2013-06-30 | sec_edgar |
| accounts_receivable | {"amount": 12990000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2013-03-31 | sec_edgar |
| accounts_receivable | {"amount": 12097000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2012-12-31 | sec_edgar |
| accounts_receivable | {"amount": 13028000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2012-09-30 | sec_edgar |
| accounts_receivable | {"amount": 12520000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2012-06-30 | sec_edgar |
| accounts_receivable | {"amount": 12131000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2012-03-31 | sec_edgar |
| accounts_receivable | {"amount": 12423000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2011-12-31 | sec_edgar |
| accounts_receivable | {"amount": 11112000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2011-09-30 | sec_edgar |
| accounts_receivable | {"amount": 12500000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2011-06-30 | sec_edgar |
| accounts_receivable | {"amount": 11324000, "concept": "us-gaap:AccountsReceivableNetCurrent", "currency": "USD"} | 2010-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 235000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency": | 2026-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 131000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency": | 2026-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 257000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency": | 2025-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 125000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency": | 2025-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 194000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency": | 2025-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 196000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency": | 2025-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 451000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency": | 2024-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 342000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency": | 2024-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 423000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency": | 2024-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 238000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency": | 2024-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 131000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency": | 2023-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 215000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency": | 2023-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 215000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency": | 2023-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 228000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency": | 2022-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 228000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency": | 2022-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 1060000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2022-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 359000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency": | 2022-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 4221000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2021-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 24051000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency | 2021-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 739000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency": | 2021-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 420000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency": | 2021-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 370000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency": | 2020-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 1357000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2020-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 658000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency": | 2020-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 1124000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2020-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 362000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency": | 2019-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 1790000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2019-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 6005000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2019-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 5461000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2019-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 4325000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2018-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 6355000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2018-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 6590000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2018-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 3586000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2018-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 3243000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2017-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 4930000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2017-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 4601000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2017-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 3091000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2017-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 2471000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2016-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 4930000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2016-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 2820000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2016-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 6934000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2016-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 5995000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2015-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 5558000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2015-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 4738000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2015-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 4222000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2015-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 3758000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2014-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 3908000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2014-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 3841000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2014-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 3147000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2014-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 2566000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2013-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 3408000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2013-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 3310000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2013-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 3196000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2013-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 3239000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2012-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 3089000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2012-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 3127000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2012-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 602000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency": | 2012-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 477000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency": | 2011-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 763000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency": | 2011-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 711000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency": | 2011-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 1259000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2011-03-31 | sec_edgar |
| cash_and_equivalents | {"amount": 594000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency": | 2010-12-31 | sec_edgar |
| cash_and_equivalents | {"amount": 1187000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2010-09-30 | sec_edgar |
| cash_and_equivalents | {"amount": 1220000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2010-06-30 | sec_edgar |
| cash_and_equivalents | {"amount": 2992000, "concept": "us-gaap:CashAndCashEquivalentsAtCarryingValue", "currency" | 2009-09-30 | sec_edgar |
| cash_and_restricted_cash | {"amount": 235000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashE | 2026-06-30 | sec_edgar |
| cash_and_restricted_cash | {"amount": 131000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashE | 2026-03-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 257000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashE | 2025-12-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 125000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashE | 2025-09-30 | sec_edgar |
| cash_and_restricted_cash | {"amount": 194000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashE | 2025-06-30 | sec_edgar |
| cash_and_restricted_cash | {"amount": 196000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashE | 2025-03-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 451000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashE | 2024-12-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 342000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashE | 2024-09-30 | sec_edgar |
| cash_and_restricted_cash | {"amount": 423000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashE | 2024-06-30 | sec_edgar |
| cash_and_restricted_cash | {"amount": 238000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashE | 2024-03-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 131000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashE | 2023-12-31 | sec_edgar |
| cash_and_restricted_cash | {"amount": 215000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashE | 2023-09-30 | sec_edgar |
| cash_and_restricted_cash | {"amount": 530000, "concept": "us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashE | 2023-06-30 | sec_edgar |