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Leases - Schedule of Maturity Analysis of Future Undiscounted Cash Flows (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Operating Leases
2021 (remaining)	$ 15,043
2022	60,318
2023	51,645
2024	40,809
2025	29,941
Thereafter	30,812
Total lease payments	228,568
Less: imputed interest	(16,512)
Total present value of lease liabilities	212,056	$ 236,600
Finance Leases
2021 (remaining)	449
2022	1,511
2023	837
2024	429
2025	172
Thereafter	3
Total lease payments	3,401
Less: imputed interest	(94)
Total present value of lease liabilities	$ 3,307

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