Leases - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows paid for operating leases	$ 1,373	$ 1,146
Operating cash flows paid for interest portion of finance leases	13	7
Financing cash flows paid for principal portion of finance leases	48	22
Right-of-use assets obtained in exchange for lease obligations
Operating leases	0	37
Finance leases	$ 0	$ 83