Income Taxes - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Operating Loss Carryforwards [Line Items]
U.S federal income tax rate	21.00%
State income taxes (benefit), net of federal tax benefit	$ 3,099,000	$ 2,421,000	$ 1,915,000
State income taxes (benefit), net of federal tax benefit (impact of REIT election), net of valuation allowance	2,100,000	4,100,000	$ 1,300,000
Valuation allowance	21,012,000	22,786,000
Decrease in valuation allowance	(1,800,000)
Accumulated undistributed earnings	8,900,000
Deferred tax liability, undistributed foreign earnings	400,000
Foreign operating losses carry forward	26,700,000
State tax credits	3,600,000
Deferred tax asset net of valuation allowance	3,400,000
Unrecognized tax benefits, net	5,500,000
Decrease in unrecognized tax benefits	900,000
Recognized tax benefits that will reduce company's tax rate	5,500,000
Recognized interest and penalties	$ 0	$ 0
Tax Year 2017 | Internal Revenue Service (IRS)
Operating Loss Carryforwards [Line Items]
Open tax year	2017
Domestic Country
Operating Loss Carryforwards [Line Items]
Federal net operating loss carryforwards	$ 38,200,000
State And Local Jurisdiction
Operating Loss Carryforwards [Line Items]
Federal net operating loss carryforwards	$ 207,300,000
Foreign Country | Earliest Tax Period
Operating Loss Carryforwards [Line Items]
Open tax year	2015
Foreign Country | Latest Tax period
Operating Loss Carryforwards [Line Items]
Open tax year	2018