Leases - Narrative (Details)	3 Months Ended
	Mar. 31, 2019 lease
Leases [Abstract]
Finance Lease, Number of Leases	3
Operating Lease, Weighted Average Discount Rate, Percent	30 years 9 months 18 days
Finance Lease, Weighted Average Remaining Lease Term	2 years 4 months 24 days
Operating Lease, Weighted Average Discount Rate, Percent	7.70%
Finance Lease, Weighted Average Discount Rate, Percent	4.20%