Leases - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 3,740	$ 3,354
Financing cash flows from finance leases	2,976	0
Right-of-use assets obtained in exchange for lease obligations:
Right-of-use assets obtained in exchange for lease obligations	830	1,111
Finance leases	$ 0	$ 0