Leases - Supplemental Cash Flow Information (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	$ 9,868
Operating cash flows from finance leases	3
Financing cash flows from finance leases	14
Right of use assets obtained in exchange for lease liabilities
Operating leases	58,669
Finance leases	$ 274