Leases - Lease Costs (Details) - USD ($) $ in Thousands	1 Months Ended	9 Months Ended
	Feb. 28, 2019	Sep. 30, 2019
Lease Costs
Operating lease expense	$ 1,472	$ 555
Finance Leases:
Amortization of right-to-use assets		416
Interest expense		84
Total finance lease expenses		$ 500