Leases - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from finance leases	$ 127	$ 164
Operating cash flows from operating leases	10,739	10,553
Financing cash flows from finance leases	1,203	2,435
Right-of-use assets obtained in exchange for new finance lease liabilities	733	5,185
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 9,328	$ 8,562