XML 70 R58.htm IDEA: XBRL DOCUMENT v3.7.0.1

Preferred Equity Investments - Additional Information (Details)	Mar. 31, 2017
Schedule Of Investments [Abstract]
Preferred equity ownership percentage	24.40%

X

- Definition

Preferred equity ownership percentage.

+ References

No definition available.

+ Details

Name:	pgre_PreferredEquityOwnershipPercentage
Namespace Prefix:	pgre_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	us-gaap_ScheduleOfInvestmentsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration