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Leases (Tables) | 12 Months Ended
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Dec. 31, 2023
Leases |
Schedule of lease related assets and liabilities | The table below presents the lease related assets and liabilities recorded on our condensed consolidated balance sheet: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ |  | Year Ended December 31,
​ | ​ | ​ | 2023 |  | 2022
​ | Classification on the Balance Sheet | ​ | (In thousands)
Assets | ​ | ​ | ​ | ​ | ​ | ​ | ​
Operating lease assets | Other long-term assets | ​ | $ | 30,650 | ​ | $ | 34,504
Total lease assets | ​ | ​ | $ | 30,650 | ​ | $ | 34,504
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Liabilities | ​ | ​ | ​ | ​ | ​ | ​ | ​
Current liabilities: | ​ | ​ | ​ | ​ | ​ | ​ | ​
Operating lease liabilities | Current lease liabilities | ​ | $ | 5,423 | ​ | $ | 6,784
Noncurrent liabilities: | ​ | ​ | ​ | ​ | ​ | ​ | ​
Operating lease liabilities | Other long-term liabilities | ​ | $ | 25,713 | ​ | $ | 27,785
Total lease liabilities | ​ | ​ | $ | 31,136 | ​ | $ | 34,569
​
Schedule of lease costs | The table below presents certain information related to the lease costs for our operating leases: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended December 31,
​ | ​ | 2023 |  | 2022 |  | 2021
​ | ​ | (In thousands)
Operating lease cost | ​ |  | 9,688 | ​ |  | 10,047 | ​ |  | 9,848
Short-term lease cost | ​ |  | 150 | ​ |  | 596 | ​ |  | 593
Variable lease cost | ​ |  | 39 | ​ |  | 115 | ​ |  | 143
Total lease cost | ​ | $ | 9,877 | ​ | $ | 10,758 | ​ | $ | 10,584
Summary of supplemental cash flow information related to leases | The table below presents supplemental cash flow information related to leases: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended December 31,
​ |  | 2023 |  | 2022 |  | 2021
​ | ​ | (In thousands)
Cash paid for amounts included in the measurement of lease liabilities: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Operating cash flows for operating leases | ​ | $ | 9,688 | ​ | $ | 10,047 | ​ | $ | 9,848
​
Summary of lease terms and discount rates | The table below presents certain information related to the weighted average remaining lease terms and weighted average discount rates for our operating leases: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ |  | Year Ended December 31,
​ | ​ |  | 2023 |  | 2022
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted-average remaining lease term - operating leases | ​ | ​ | ​ | 6.44 | ​ | ​ | 6.96
Weighted-average discount rate - operating leases | ​ | ​ | ​ | 6.82% | ​ | ​ | 6.81%
Schedule of undiscounted cash flows for operating lease liabilities | The table below reconciles the undiscounted cash flows for each of the first five years and the total remaining years to the operating lease liabilities recorded on the condensed consolidated balance sheet: ​
​ | ​ | ​ | ​ | ​
​ |  | December 31, 2023 |
​ |  | (In thousands) |
2024 | ​ | $ | 7,614 | ​
2025 | ​ |  | 7,044 | ​
2026 | ​ |  | 6,966 | ​
2027 | ​ |  | 5,518 | ​
2028 | ​ |  | 2,455 | ​
Thereafter | ​ |  | 8,539 | ​
Total undiscounted lease liability | ​ | ​ | 38,136 | ​
Less: amount of lease payments representing interest | ​ | ​ | (7,000) | ​
Long-term lease obligations | ​ | $ | 31,136 | ​
​

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- Definition Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147478964/842-20-50-4 + Details
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- Definition Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147478964/842-20-50-6 + Details
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