Leases - Summary of Other Information Related to Operating Leases (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Leases [Abstract]
Operating cash flows from operating leases	$ 18,743	$ 29,248
Right-of-use assets obtained in exchange for operating lease liabilities	$ 969	$ 29,581
Weighted-average remaining lease term - operating leases	5 years 8 months 12 days	6 years
Weighted-average discount rate - operating leases	3.30%	3.40%