Leases - Schedule of Lease Costs and Other Lease Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Lease costs
Operating lease cost	$ 5,069
Variable lease cost	406
Short-term lease cost	228
Finance lease cost
Interest on lease liabilities	164
Amortization of right-of-use asset	201
Total lease cost	6,068
Rent expense	5,904
Rent expense		$ 5,528	$ 4,454
Interest on lease liabilities	$ 164