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Investments in Unconsolidated Real Estate Related Funds - Additional Information (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Real Estate [Line Items] |  |  |
Investments in the unconsolidated real estate related funds | $ 4,649,000 | $ 4,549,000 |
Income (losses) from unconsolidated real estate funds | $ 273,000 | $ (822,000) | $ (1,239,000)
Fund VIII [Member] |  |  |
Real Estate [Line Items] |  |  |
Alternative Investment Fund Ownership Interest Percentage | 1.30% |  |
Fund X [Member] |  |  |
Real Estate [Line Items] |  |  |
Alternative Investment Fund Ownership Interest Percentage |  |  | 8.20%
Alternative Investment Fund Ownership Interest Percentage |  |  | 13.00%

X
- Definition This item represents the entity's proportionate share for the period of the net income (loss) of its real estate fund investments to which equity method of accounting is applied. + References No definition available. + Details
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Namespace Prefix: | pgre_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Ownership percentage in investment funds. + References No definition available. + Details
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Namespace Prefix: | pgre_
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Balance Type: | na
Period Type: | instant

X
- Definition Ownership percentage in investment funds increased. + References No definition available. + Details
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Namespace Prefix: | pgre_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The carrying amount of investments in unconsolidated real estate and other joint ventures not separately presented. This includes direct and indirect investments. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(1)(d)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(1)(6)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1 + Details
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Period Type: | instant

X
- 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 976 -SubTopic 310 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477332/976-310-50-1 + Details
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X
- Details
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X
- Details
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