Leases - Summary of Lease Cost and Cash Flow Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Lease Cost
Operating lease cost	$ 11,585
Short-term Lease, Cost	12,975
Finance Lease Cost:
Amortization of leased assets	21,293,000
Finance Lease, Interest Expense	4,150,000	$ 2,270,000	$ 1,621,000
Total finance lease cost	25,443,000
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	24,560
Financing cash flows from finance leases	$ 25,975,000