Leases Leases - Components of Lease Expense (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($)
Leases [Abstract]
Operating lease cost	$ 5,828
Short-term lease cost	299
Total operating lease cost	6,127
Amortization of right-of-use assets	2,073
Interest on lease liabilities	58
Total finance lease cost	2,131
Total lease cost	$ 8,258