Represents the maximum percentage of concentration risk that is not individually disclosed.

No definition available.

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- Definition

Represents the number of collective bargaining arrangements.

+ References

No definition available.

+ Details

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- Definition

Represents the number of tenants to whom the facility is leased.

+ References

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

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- Definition

The cumulative amount of the reporting entity's undistributed earnings or deficit.

+ References

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Significant Accounting Policies - Concentrations of Credit Risk/Reclassification (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($) agreement tenant	Dec. 31, 2020 USD ($)	Dec. 31, 2019	Jan. 01, 2020 USD ($)
Concentration of Credit Risk
Retained earnings	$ 975,781	$ 1,015,462
Cumulative Effect, Period of Adoption, Adjustment \| Accounting Standards Update 2016-13
Concentration of Credit Risk
Retained earnings				$ 39,200
Annualized rent \| Customer concentration
Concentration of Credit Risk
Number of tenants (tenants) \| tenant	1
Maximum percentage of annualized rent for any one tenant not individually disclosed (percent) (more than)	5.00%
Annualized rent \| 11 Madison Avenue \| Customer concentration
Concentration of Credit Risk
Percentage of concentration (percent)	10.80%	8.20%	7.40%
Annualized rent \| 420 Lexington Avenue \| Customer concentration
Concentration of Credit Risk
Percentage of concentration (percent)	8.30%	7.50%	6.60%
Annualized rent \| 1515 Broadway \| Customer concentration
Concentration of Credit Risk
Percentage of concentration (percent)	8.10%	6.60%	6.10%
Annualized rent \| 1185 Avenue of the Americas \| Customer concentration
Concentration of Credit Risk
Percentage of concentration (percent)	8.00%	6.90%	7.60%
Annualized rent \| 280 Park Avenue \| Customer concentration
Concentration of Credit Risk
Percentage of concentration (percent)	6.70%	5.40%
Annualized rent \| 919 Third Avenue \| Customer concentration
Concentration of Credit Risk
Percentage of concentration (percent)	5.30%
Annualized rent \| 485 Lexington Avenue \| Customer concentration
Concentration of Credit Risk
Percentage of concentration (percent)	5.30%
Annualized rent \| 555 W. 57th Street \| Customer concentration
Concentration of Credit Risk
Percentage of concentration (percent)	5.20%
Annualized rent \| One Madison Ave \| Customer concentration
Concentration of Credit Risk
Percentage of concentration (percent)			6.00%
Annualized rent \| 220 East 42nd Street \| Customer concentration
Concentration of Credit Risk
Percentage of concentration (percent)		5.90%	5.50%
Collective bargaining arrangements \| Workforce concentration
Concentration of Credit Risk
Percentage of concentration (percent)	62.80%
Number of collective bargaining agreements \| agreement	5
Tenant 1 \| Annualized rent \| Customer concentration
Concentration of Credit Risk
Percentage of concentration (percent)	6.30%