Investments in Unconsolidated Joint Ventures - Summary of Investments and Income from Investments In Unconsolidated Joint Ventures (Parenthetical) (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2024	Mar. 29, 2024
712 Fifth Avenue [Member]
Schedule Of Equity Method Investments [Line Items]
Equity method paramount ownership percentage	50.00%
55 Second Street [Member]
Schedule Of Equity Method Investments [Line Items]
Difference between carrying amount of investment and equity	$ 461
Equity method paramount ownership percentage	44.10%
1600 Broadway [Member]
Schedule Of Equity Method Investments [Line Items]
Difference between carrying amount of investment and equity	$ 303
Equity method paramount ownership percentage	9.20%
60 Wall Street [Member]
Schedule Of Equity Method Investments [Line Items]
Equity method paramount ownership percentage	5.00%	5.00%
One Steuart Lane [Member]
Schedule Of Equity Method Investments [Line Items]
Difference between carrying amount of investment and equity	$ 570
Equity method paramount ownership percentage	35.00%
Equity method economic interest percentage	2.60%
One Steuart Lane [Member] \| Residential Development Fund's [Member]
Schedule Of Equity Method Investments [Line Items]
Equity method paramount ownership percentage	7.40%
Oder-Center, Germany [Member]
Schedule Of Equity Method Investments [Line Items]
Difference between carrying amount of investment and equity	$ 4,212
Equity method paramount ownership percentage	9.50%
111 Sutter Street [Member]
Schedule Of Equity Method Investments [Line Items]
Equity method paramount ownership percentage	49.00%

Equity method investment economic interest percentage.

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- Definition

Difference between amount at which an investment accounted for under the equity method of accounting is carried (reported) on the balance sheet and amount of underlying equity in net assets the reporting Entity has in the investee.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 323
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481687/323-10-50-3

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 323
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481687/323-10-50-3

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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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(g)(1)(ii))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480678/235-10-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-URI https://asc.fasb.org//1943274/2147481687/323-10-50-3

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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-SubTopic 10
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-Section 50
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-URI https://asc.fasb.org//1943274/2147482907/825-10-50-28

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 323
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-Section 50
-Paragraph 3
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481687/323-10-50-3

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 323
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(2)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481687/323-10-50-3

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 323
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481687/323-10-50-3

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