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Leases (Tables) | 12 Months Ended
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Dec. 31, 2021
Leases [Abstract] |
Schedule of operating lease costs | Operating lease cost details for the years ended December 31, 2021, December 31, 2020, and December 31, 2019 are as follows:
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Years ended December 31,
​ |  | 2021 |  | 2020 | ​ | 2019
​ | ​ | (in thousands)
Building rent | ​ | $ | 2,564 | ​ | $ | 2,978 | ​ | $ | 3,397
Automobile rentals | ​ |  | 1,505 | ​ |  | 1,576 | ​ |  | 1,531
Total net operating lease costs | ​ | $ | 4,069 | ​ | $ | 4,554 | ​ | $ | 4,928
Schedule of supplemental consolidated balance sheet information related to our operating leases | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2021 | ​ | ​ | December 31, 2020
in thousands | ​ | ​ | ​ | ​ | ​ | ​
Leases | ​ | ​ | ​ | ​ | ​ | ​
Assets | ​ | ​ | 9,197 | ​ | ​ | 11,356
Operating lease right-of-use assets | ​ | $ | 9,197 | ​ | $ | 11,356
​ | ​ | ​ | ​ | ​ | ​ | ​
Liabilities | ​ | ​ | ​ | ​ | ​ | ​
Current | ​ | ​ | ​ | ​ | ​ | ​
Operating lease liabilities | ​ | $ | 2,476 | ​ | $ | 2,855
​ | ​ | ​ | ​ | ​ | ​ | ​
Noncurrent | ​ | ​ | ​ | ​ | ​ | ​
Operating lease liabilities | ​ | ​ | 10,180 | ​ | ​ | 12,399
Total lease liabilities | ​ | $ | 12,656 | ​ | $ | 15,254
Schedule of supplemental consolidated cash flow information related to leases | Supplemental consolidated cash flow information related to leases is as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Years ended December 31,
​ | ​ | 2021 | ​ | 2020 | ​ | ​ | 2019
​ | ​ | ​ | (in $ thousands)
Supplemental cash flow and other information related to leases: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Operating cash payments from operating leases | ​ | $ | 3,630 | ​ | $ | 3,835 | ​ | ​ | $ | 3,731
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
ROU assets obtained in exchange for new operating lease liabilities | ​ | $ | 589 | ​ | $ | 3,549 | ​ | ​ | $ | 4,924
Schedule of maturities of operating leases | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | As of December 31, 2021 | ​ | ​
​ | ​ | ​ | (in $ thousands) | ​ | ​ | ​
2022 | ​ | $ | 3,040 | ​ | ​ | ​
2023 | ​ | ​ | 2,599 | ​ | ​ | ​
2024 | ​ | ​ | 1,823 | ​ | ​ | ​
2025 | ​ | ​ | 1,693 | ​ | ​ | ​
2026 | ​ | ​ | 1,629 | ​ | ​ | ​
Later years | ​ | ​ | 4,352 | ​ | ​ | ​
Less imputed interest | ​ | ​ | (2,480) | ​ | ​ | ​
Total lease liabilities | ​ | $ | 12,656 | ​ | ​ | ​

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980 + 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 -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980 + Details
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