Income Taxes - Additional information (Details)	6 Months Ended
Jun. 30, 2021 USD ($)
Federal NOLs utilized to date	$ 23.9
Valuation Allowance	64,600,000
State and Local Jurisdiction [Member]
Operating Loss Carryforwards	136,000,000.0
Federal [Member]
Operating Loss Carryforwards	240,700,000
New York State [Member]
Discontinued Operation, Tax Effect of Adjustment to Prior Period Gain (Loss) on Disposal	23,600,000
New York City [Member]
Discontinued Operation, Tax Effect of Adjustment to Prior Period Gain (Loss) on Disposal	$ 18,000,000.0

The amount of federal net operating loss carryforwards utilized to date.

No definition available.

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- Definition

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

+ References

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- Definition

Amount of tax expense (benefit) for an increase (decrease) to a gain (loss) previously reported in discontinued operations in a prior period.

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- Definition

Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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