Leases - Lease Cost and Supplemental Cash Flow (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Leases [Abstract]
Operating lease cost	$ 1,516	$ 1,103
Finance lease cost:
Amortization of right-of-use assets	1,277	1,455
Interest on finance lease liabilities	82	236
Total finance lease cost	1,359	1,691
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash used in operating leases	(1,584)	(1,144)
Financing cash used in finance leases	(1,229)	(1,894)
Right-of-use assets obtained in exchange for operating leases	3,892	0
Right of use assets obtained in exchange for finance leases	$ 0	$ 0