Debt instrument maturity year.

No definition available.

Name:	pps_DebtInstrumentMaturityYear
Namespace Prefix:	pps_
Data Type:	xbrli:gYearItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt instruments maturity date month and year.

+ References

No definition available.

+ Details

Name:	pps_DebtInstrumentsMaturityDateMonthAndYear
Namespace Prefix:	pps_
Data Type:	xbrli:gYearMonthItemType
Balance Type:	na
Period Type:	duration

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

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

- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12317-112629

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12355-112629

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

+ References

No definition available.

+ Details

Name:	us-gaap_RepaymentsOfDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_MortgagesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis=us-gaap_FirstMortgageMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis=us-gaap_SecondMortgageMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Indebtedness (Debt issuances, retirements and modifications) - Additional Information (Detail) - USD ($) $ in Thousands	1 Months Ended		12 Months Ended
	Sep. 30, 2014	May. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Debt Instrument [Line Items]
Net loss on extinguishment of indebtedness			$ (197)	$ (18,357)
Secured Mortgage Notes [Member]
Debt Instrument [Line Items]
Indebtedness maturity date			2019
Stated rate on the indebtedness			5.99%
New York [Member]
Debt Instrument [Line Items]
Prepaid secured mortgage indebtedness	$ 82,627
Net loss on extinguishment of indebtedness				(14,070)
New York [Member] \| Total Company Equity [Member]
Debt Instrument [Line Items]
Net loss on extinguishment of indebtedness				$ (12,333)
Dallas, Texas [Member] \| Secured Mortgage Notes [Member]
Debt Instrument [Line Items]
Prepaid secured mortgage indebtedness		$ 120,000
Stated rate on the indebtedness				4.88%
Net loss on extinguishment of indebtedness				$ (4,287)
Indebtedness maturity date			2015-02
First Mortgage Note [Member]
Debt Instrument [Line Items]
Indebtedness maturity date	2018
Stated rate on the indebtedness	5.84%
Second Mortgage Note [Member]
Debt Instrument [Line Items]
Indebtedness maturity date	2019
Stated rate on the indebtedness	5.61%