Income Taxes - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Line Items]
Statutory tax rate	21.00%	21.00%	35.00%
Operating loss carryforwards, limitations on use	limitations on net operating losses (NOLs) generated after December 31, 2017, to 80% of taxable income
Tax cuts and jobs act of 2017, limitations on NOLs percentage of taxable income	80.00%		80.00%
Valuation Allowance	$ 189,941,000	$ 23,934,000
Increase to valuation allowance	166,000,000
Unrecognized Tax Benefits	0
United States [Member]
Income Tax Disclosure [Line Items]
Operating Loss carryforwards not subject to expiration	$ 590,600,000
Operating loss carryforwards expiration year	2037
State [Member]
Income Tax Disclosure [Line Items]
Operating Loss carryforwards not subject to expiration	$ 203,900,000
Operating loss carryforwards expiration year	2037
Maximum [Member] | United States [Member]
Income Tax Disclosure [Line Items]
Net operating loss carryforwards	$ 618,000,000
Maximum [Member] | State [Member]
Income Tax Disclosure [Line Items]
Net operating loss carryforwards	$ 238,500,000