Leases - Lease Cost (Details 2) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($)
Operating lease cost
Operating lease cost	$ 9,251
Finance lease cost
Amortization of right-of-use assets	298
Interest on lease liabilities	70
Total Finance lease cost	368
Variable lease cost	2,797
Total lease cost	$ 12,416