Leases - Schedule of Lease Cost (Details) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2019 USD ($)	Jun. 30, 2019 USD ($)
Finance lease cost:
Amortization of right-of-use assets	$ 542	$ 1,038
Interest on lease liabilities	934	1,777
Subtotal	1,476	2,815
Operating lease cost	1,107	1,643
Variable lease cost	25	57
Total lease cost	$ 2,608	$ 4,515
Weighted-average remaining lease term - finance leases (years)	45 years 4 months 24 days	45 years 4 months 24 days
Weighted-average remaining lease term - operating leases (years)	33 years 9 months 18 days	33 years 9 months 18 days
Weighted-average discount rate - finance leases	4.50%	4.50%
Weighted-average discount rate - operating leases	5.80%	5.80%