Leases - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Cash paid for amounts included in the measurement of lease liabilities	$ 15,059	$ 14,646
Right-of-use operating lease assets obtained in exchange for operating lease liabilities	$ 10,938	$ 10,637