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.

+ Details

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Balance Type:	na
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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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 42
-URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e9054-108599

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
-URI https://asc.fasb.org/extlink&oid=99393423&loc=d3e6351-108592

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 20
-URI https://asc.fasb.org/extlink&oid=123594938&loc=d3e13531-108611

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=123594938&loc=d3e13537-108611

Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 20
-URI https://asc.fasb.org/extlink&oid=99393423&loc=d3e6404-108592

+ Details

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Significant Accounting Policies - Concentrations of Credit Risk/Reclassification (Details)	12 Months Ended
	Dec. 31, 2022 agreement tenant	Dec. 31, 2021	Dec. 31, 2020
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 \| One Vanderbilt Avenue \| Customer concentration
Concentration of Credit Risk
Percentage of concentration (percent)	14.10%
Annualized rent \| 11 Madison Avenue \| Customer concentration
Concentration of Credit Risk
Percentage of concentration (percent)	7.80%	10.80%	8.20%
Annualized rent \| 245 Park Avenue \| Customer concentration
Concentration of Credit Risk
Percentage of concentration (percent)	10.00%
Annualized rent \| 420 Lexington Avenue \| Customer concentration
Concentration of Credit Risk
Percentage of concentration (percent)	6.30%	8.30%	7.50%
Annualized rent \| 1515 Broadway \| Customer concentration
Concentration of Credit Risk
Percentage of concentration (percent)	5.80%	8.10%	6.60%
Annualized rent \| 1185 Avenue of the Americas \| Customer concentration
Concentration of Credit Risk
Percentage of concentration (percent)	5.10%	8.00%	6.90%
Annualized rent \| 280 Park Avenue \| Customer concentration
Concentration of Credit Risk
Percentage of concentration (percent)	5.10%	6.70%	5.40%
Annualized rent \| 220 East 42nd Street \| Customer concentration
Concentration of Credit Risk
Percentage of concentration (percent)			5.90%
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 West 57th Street \| Customer concentration
Concentration of Credit Risk
Percentage of concentration (percent)		5.20%
Collective bargaining arrangements \| Workforce concentration
Concentration of Credit Risk
Percentage of concentration (percent)	58.10%
Number of collective bargaining agreements \| agreement	5
Workforce Subject to Collective Bargaining Arrangements Expiring within One Year \| Workforce concentration
Concentration of Credit Risk
Percentage of concentration (percent)	44.10%
Tenant 1 \| Annualized rent \| Customer concentration
Concentration of Credit Risk
Percentage of concentration (percent)	5.40%