Leases - Schedule of Lease Cost and Other Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Weighted-average remaining lease term
Operating leases	17 years	16 years 9 months 18 days
Finance leases	32 years	33 years
Weighted-average discount rate
Operating leases	3.61%	3.67%
Finance leases	7.04%	7.04%
Lease Costs
Operating lease cost	$ 12,281	$ 12,616
Variable lease cost	5,549	3,504
Short-term lease cost	587	591
Interest on lease liabilities 1	741	747
Amortization of right-of-use assets	72	72
Sublease income	(7,804)	(8,281)
Net lease cost	11,426	9,249
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	12,349	12,779
Operating cash flows from finance leases	741	747
Financing cash flows from finance leases	84	78
Right-of-use assets obtained in exchange for new operating lease liabilities	11,185	4,101
Right-of-use assets obtained in exchange for new finance lease liabilities	$ 0	$ 0