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Segments - Schedule of NOI for Each Reportable Segment Information (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2022 | Mar. 31, 2021
Segment Reporting Information [Line Items] |  |  |
Property-related revenues |  | $ 171,697 | $ 174,496
Property-related operating expenses |  | (66,661) | (66,618)
NOI from unconsolidated joint ventures (excluding One Steuart Lane) |  | 11,234 | 10,326
NOI | [1] | 116,270 | 118,204
New York [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Property-related revenues |  | 115,405 | 111,837
Property-related operating expenses |  | (48,211) | (49,024)
NOI from unconsolidated joint ventures (excluding One Steuart Lane) |  | 2,818 | 2,821
NOI | [1] | 70,012 | 65,634
San Francisco [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Property-related revenues |  | 57,089 | 63,472
Property-related operating expenses |  | (17,292) | (16,938)
NOI from unconsolidated joint ventures (excluding One Steuart Lane) |  | 8,354 | 7,537
NOI | [1] | 48,151 | 54,071
Other [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Property-related revenues |  | (797) | (813)
Property-related operating expenses |  | (1,158) | (656)
NOI from unconsolidated joint ventures (excluding One Steuart Lane) |  | 62 | (32)
NOI | [1] | $ (1,893) | $ (1,501)
[1] | NOI is used to measure the operating performance of our properties. NOI consists of rental revenue (which includes property rentals, tenant reimbursements and lease termination income) and certain other property-related revenue less operating expenses (which includes property-related expenses such as cleaning, security, repairs and maintenance, utilities, property administration and real estate taxes). We use NOI internally as a performance measure and believe it provides useful information to investors regarding our financial condition and results of operations because it reflects only those income and expense items that are incurred at the property level. Other real estate companies may use different methodologies for calculating NOI and, accordingly, our presentation of NOI may not be comparable to other real estate companies.

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- Definition This element represents the company's operating income from the properties including its pro rata share of equity method investments which is calculated as net income before depreciation and amortization, general and administrative expenses, interest and debt expenses and income taxes. + References No definition available. + Details
Name: | pgre_NetOperatingIncome
Namespace Prefix: | pgre_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition This element represents the company's pro rata operating income from equity method investments which is calculated as net income before depreciation and amortization, general and administrative expenses, interest and debt expenses and income taxes. + References No definition available. + Details
Name: | pgre_NetOperatingIncomeFromEquityMethodInvestments
Namespace Prefix: | pgre_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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- Definition Operating costs and expenses including discontinued operations. + References No definition available. + Details
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Namespace Prefix: | pgre_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Amount of operating lease income from lease payments and variable lease payments paid and payable to lessor. Includes, but is not limited to, variable lease payments not included in measurement of lease receivable Includes other revenue recognized by the entity in the period relating additional services requested by tenants. This amount also includes properties classified as discontinued operations. + References No definition available. + Details
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Namespace Prefix: | pgre_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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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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- Details
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- Details
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- Details
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