XML 90 R38.htm IDEA: XBRL DOCUMENT v2.4.1.9
Basis of Presentation and Significant Accounting Policies - Additional Information (Details)
 3 Months Ended
Mar. 31, 2015
Segment
Property Plant And Equipment [Line Items]  
Number of reportable segments 1us-gaap_NumberOfReportableSegments
Predecessor [Member]  
Property Plant And Equipment [Line Items]  
Number of reportable segments 3us-gaap_NumberOfReportableSegments
/ us-gaap_StatementScenarioAxis
= us-gaap_PredecessorMember
Post-Formation Transactions [Member]  
Property Plant And Equipment [Line Items]  
Number of reportable segments 1us-gaap_NumberOfReportableSegments
/ us-gaap_SignificantAcquisitionsAndDisposalsByTransactionAxis
= pgre_PostFormationTransactionsMember
One Market Plaza [Member]  
Property Plant And Equipment [Line Items]  
Residual ownership interest 2.00%pgre_ResidualOwnershipInterest
/ us-gaap_RealEstatePropertiesAxis
= pgre_OneMarketPlazaMember