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Leases (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 USD ($) renewal_option | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($)
Lease, Cost [Abstract] |  |  |
Operating lease cost | $ 4,750 | $ 4,475 | $ 3,544
Amortization of right-of-use assets | 880 | 922 | 926
Interest on lease obligations | 956 | 1,197 | 1,306
Short-term lease cost | 1,667 | 1,727 | 1,324
Variable lease cost | 1,163 | 1,214 | 923
Lease cost | 9,416 | 9,535 | 8,023
Cash paid for amounts included in the measurement of lease liabilities: |  |  |
Operating cash flows from operating leases | 6,028 | 5,350 | 4,018
Finance cash flows from finance leases | 1,705 | 1,641 | 1,565
Right-of-use assets obtained in exchange for lease obligations: Operating leases | 6,299 | 4,121 | 2,207
Right-of-use assets obtained in exchange for lease obligations: Finance leases | $ 0 | $ 0 | $ 0
Weighted Average Remaining Lease Term (in years) - Operating leases | 5 years 8 months 12 days | 6 years 6 months | 7 years 7 months 6 days
Weighted Average Remaining Lease Term (in years) - Finance leases | 21 years 4 months 24 days | 22 years 4 months 24 days | 23 years 4 months 24 days
Weighted Average Discount Rate - Operating leases | 4.90% | 5.50% | 5.70%
Weighted Average Discount Rate - Finance leases | 5.50% | 5.50% | 6.00%
Office |  |  |
Lessee, Lease, Description [Line Items] |  |  |
Number of renewal options (or more) | renewal_option | 1 |  |
Office | Minimum |  |  |
Lessee, Lease, Description [Line Items] |  |  |
Renewal term | 1 year |  |
Office | Maximum |  |  |
Lessee, Lease, Description [Line Items] |  |  |
Renewal term | 5 years |  |

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- Definition Amount of interest expense on finance lease liability. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918638-209977 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 55 -Paragraph 53 -URI http://asc.fasb.org/extlink&oid=123414884&loc=SL77918982-209971 + Details
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