Leases - Components of Lease Expense (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($)
Leases [Abstract]
Operating lease cost	$ 5,472
Finance lease cost:
Amortization of ROU asset	170
Interest expense	49
Short-term lease cost	492
Variable lease cost	1,675
Total lease cost	$ 7,858