Lease Accounting - Components of Lease Expense (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2019 USD ($)
Lessee, Lease, Description [Line Items]
Fixed	$ 2,663
Variable	57
Total	2,720
Property Operating Expense
Lessee, Lease, Description [Line Items]
Fixed	1,992
Variable	0
Total	1,992
General and Administrative Expense
Lessee, Lease, Description [Line Items]
Fixed	671
Variable	57
Total	$ 728