Leases - Summary of Lease Cost and Cash Flow Information (Details) - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Lease Cost
ROU operating lease cost	$ 3,449
Short-term Lease, Cost	2,751
Finance Lease Cost:
Amortization of right-of-use assets	2,968,000
Finance Lease, Interest Expense	1,107,000	$ 524,000
Total finance lease cost	4,075,000
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	6,200
Financing cash flows from finance leases	$ 7,356,000