Leases - Summary of Lease Cost and Cash Flow Information (Details) - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Lease Cost
Operating lease cost	$ 2,897	$ 3,449
Short-term Lease, Cost	1,667	2,751
Finance Lease Cost:
Amortization of leased assets	5,973,000	2,968,000
Finance Lease, Interest Expense	1,005,000	1,107,000
Total finance lease cost	6,978,000	4,075,000
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	4,871	6,200
Financing cash flows from finance leases	$ 5,901,000	$ 7,356,000