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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 |  |

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