Operating Leases - Narrative (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Lessee, Lease, Description [Line Items]
Operating lease right-of-use assets	$ 33,759	$ 34,601
Operating lease liabilities	$ 39,400	$ 40,284
Weighted average remaining lease term	13 years 5 months 15 days
Weighted average discount rate (as a percent)	3.57%
Minimum
Lessee, Lease, Description [Line Items]
Operating lease term	11 months
Maximum
Lessee, Lease, Description [Line Items]
Operating lease term	21 years