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Leases (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Leases [Abstract] |  |  |  |
Weighted average remaining lease term for operating leases | 6 years 8 months 12 days |  | 6 years 8 months 12 days |
Weighted average remaining lease term for finance leases | 4 years |  | 4 years |
Weighted average discount rate for operating leases | 4.00% |  | 4.00% |
Weighted average discount rate for finance leases | 3.80% |  | 3.80% |
Operating Lease Expense [Abstract] |  |  |  |
Operating lease cost | $ 12,193 | $ 13,038 | $ 37,408 | $ 39,043
Variable lease cost | 1,121 | 678 | 4,145 | 2,062
Short-term lease cost | 13 | 118 | 590 | 258
Sublease income | (1,352) | (1,075) | (5,164) | (3,264)
Finance Lease Expense [Abstract] |  |  |  |
Amortization of right-of-use assets | 594 | 0 | 1,811 | 0
Interest on lease liabilities | 77 | 0 | 248 | 0
Total lease expense | 12,646 | $ 12,759 | 39,038 | 38,099
Supplemental Cash Flow Information Related to Leases [Abstract] |  |  |  |
Operating cash outflow from operating leases |  |  | 40,072 | 40,865
Operating cash outflow from finance leases |  |  | 250 | 0
Financing cash outflow from finance leases |  |  | 1,409 | 0
Right-of-use assets obtained in exchange for operating lease obligations |  |  | 19,120 | 62,514
Right-of-use assets obtained in exchange for finance lease obligations |  |  | 59 | $ 0
Maturities of Operating Lease Liabilities [Abstract] |  |  |  |
2021 | 11,911 |  | 11,911 |
2022 | 35,502 |  | 35,502 |
2023 | 24,955 |  | 24,955 |
2024 | 19,610 |  | 19,610 |
2025 | 14,725 |  | 14,725 |
Thereafter | 41,327 |  | 41,327 |
Total | 148,030 |  | 148,030 |
Less: Finance charges | 18,241 |  | 18,241 |
Total principal liability | 129,789 |  | 129,789 |
Maturities of Financing Lease Liabilities [Abstract] |  |  |  |
2021 | 535 |  | 535 |
2022 | 2,150 |  | 2,150 |
2023 | 2,069 |  | 2,069 |
2024 | 1,958 |  | 1,958 |
2025 | 1,385 |  | 1,385 |
Thereafter | 262 |  | 262 |
Total | 8,359 |  | 8,359 |
Less: Finance charges | 622 |  | 622 |
Total principal liability | 7,737 |  | 7,737 |
Additional lease liabilities not yet commenced | $ 100 |  | $ 100 |

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- Definition Amount of increase in right-of-use asset obtained in exchange for operating lease liability. + References Reference 1: 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 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (g)(2) -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980 + Details
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- Definition Amount of short-term lease cost, excluding expense for lease with term of one month or less. + 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 (c) -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980 Reference 2: 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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- Definition Amount of sublease income excluding finance and operating lease expense. + 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 (e) -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980 Reference 2: 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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- Definition Amount of variable lease cost, excluded from lease liability, recognized when obligation for payment is incurred for finance and operating leases. + 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 (d) -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980 Reference 2: 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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