Leases - Supplemental Cash Flows (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($)
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 8,037
Operating cash flows from finance leases	45
Financing cash flows from finance leases	358
ROU assets obtained in exchange for lease obligations:
Operating leases	8,970
Finance leases	$ 0