Credit facility accordion feature.

No definition available.

Name:	pir_CreditFacilityAccordionFeature
Namespace Prefix:	pir_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Debt instrument maturity year.

+ References

No definition available.

+ Details

Name:	pir_DebtInstrumentMaturityYear
Namespace Prefix:	pir_
Data Type:	xbrli:gYearItemType
Balance Type:	na
Period Type:	duration

- Definition

Principal amortization percent rate for a debt instrument.

+ References

No definition available.

+ Details

Name:	pir_DebtInstrumentPrincipalAmortizationRatePercent
Namespace Prefix:	pir_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Fixed charge coverage requirement availability over the same specified period of time, projected to be less than specified percentage.

+ References

No definition available.

+ Details

Name:	pir_FixedChargeCoverageRequirementAvailabilityOverSameSpecifiedPeriodOfTimeProjectedToBeLessThanSpecifiedPercentage
Namespace Prefix:	pir_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Line of credit borrowing base.

+ References

No definition available.

+ Details

Name:	pir_LineOfCreditBorrowingBase
Namespace Prefix:	pir_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line of credit facility, potential maximum borrowing capacity.

+ References

No definition available.

+ Details

Name:	pir_LineOfCreditFacilityPotentialMaximumBorrowingCapacity
Namespace Prefix:	pir_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Minimum availability on line cap amount.

+ References

No definition available.

+ Details

Name:	pir_MinimumAvailabilityOnLineCapAmount
Namespace Prefix:	pir_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Payment of certain dividends unless credit extensions on the line result in availability over a specified period of time is less than specified percentage.

+ References

No definition available.

+ Details

Name:	pir_PaymentOfCertainDividendsUnlessCreditExtensionsOnLineResultInAvailabilityOverSpecifiedPeriodOfTimeIsLessThanSpecifiedPercentage
Namespace Prefix:	pir_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Percentage of minimum availability on line cap.

+ References

No definition available.

+ Details

Name:	pir_PercentageOfMinimumAvailabilityOnLineCap
Namespace Prefix:	pir_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum incremental borrowing provided under term loan facility.

+ References

No definition available.

+ Details

Name:	pir_TermLoanIncrementalBorrowingMaximum
Namespace Prefix:	pir_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ 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))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

Name:	us-gaap_DebtInstrumentCarryingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

+ 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

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

- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

+ Details

Name:	us-gaap_DebtInstrumentMaturityDate
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

+ Details

Name:	us-gaap_LineOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ References

No definition available.

+ Details

Name:	us-gaap_LineOfCreditFacilityCommitmentFeePercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Date the credit facility terminates, in CCYY-MM-DD format.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityExpirationDate1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Fair value of the amount outstanding under the credit facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13433-108611

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13476-108611

+ Details

Name:	us-gaap_LineOfCreditFacilityFairValueOfAmountOutstanding
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

Name:	us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 3: 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))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_LongTermDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Weighted average interest rate of long-term debt outstanding calculated at point in time.

+ References

No definition available.

+ Details

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

- Details

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

- Details

Name:	us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_BaseRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=pir_SecuredCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_PrimeRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_StandbyLettersOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ProductOrServiceAxis=pir_WorkersCompensationAndGeneralLiabilityInsurancePoliciesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=pir_TradeLetterOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=pir_TradeLettersOfCreditAndBankersAcceptancesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=pir_OtherMiscellaneousStandbyLettersOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=pir_IndustrialRevenueBondsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Long-Term Debt and Available Credit - Additional Information (Detail) - USD ($)		3 Months Ended	12 Months Ended
	Jun. 02, 2017	May 27, 2017	Mar. 03, 2018	Feb. 25, 2017	Feb. 27, 2016
Term Loan Facility
Debt Instrument [Line Items]
Carrying value of long term debt			$ 190,495,000
Weighted average effective interest rate			5.50%
Term loan facility, maturity date			Apr. 30, 2021
Borrowings under term loan facility			$ 193,000,000
Term loan facility, quarterly amortization of principal amount of loans			0.25%
Term loan incremental maximum borrowing capacity			$ 200,000,000
Fair Value, Inputs, Level 2 \| Term Loan Facility
Debt Instrument [Line Items]
Fair value of term loan facility			$ 183,833,000
LIBOR \| Term Loan Facility
Debt Instrument [Line Items]
Basis points			3.50%
LIBOR \| Minimum \| Term Loan Facility
Debt Instrument [Line Items]
Interest floor rate			1.00%
Base Rate \| Term Loan Facility
Debt Instrument [Line Items]
Basis points			2.50%
Base Rate \| Minimum \| Term Loan Facility
Debt Instrument [Line Items]
Interest floor rate			2.00%
Revolving Credit Facility
Debt Instrument [Line Items]
Credit facility , maximum borrowing capacity		$ 350,000,000		$ 350,000,000
Credit facility accordion feature	$ 150,000,000	$ 100,000,000		$ 100,000,000
Potential increase to credit facility	$ 500,000,000
Extended maturity date of revolving credit facility	Jun. 02, 2022
Unused portion of credit facility, basis point			0.25%
Percentage of minimum availability on line cap			10.00%
Minimum availability on line cap, amount			$ 20,000,000
Payments of dividends less than 15.0%			350,000,000
Fixed charge coverage less than 20.0%			350,000,000
Credit facility borrowing base			294,416,000
Remaining borrowing			$ 252,935,000
Revolving Credit Facility \| LIBOR \| Minimum
Debt Instrument [Line Items]
Basis points			1.25%
Revolving Credit Facility \| LIBOR \| Maximum
Debt Instrument [Line Items]
Basis points			1.50%
Revolving Credit Facility \| Prime Rate \| Minimum
Debt Instrument [Line Items]
Basis points			0.25%
Revolving Credit Facility \| Prime Rate \| Maximum
Debt Instrument [Line Items]
Basis points			0.50%
Standby letters of credit
Debt Instrument [Line Items]
Commitment fee			1.25%	1.25%
Standby letters of credit \| Workers' Compensation And General Liability Insurance Policies
Debt Instrument [Line Items]
Borrowings outstanding			$ 23,966,000
Standby letters of credit \| Minimum
Debt Instrument [Line Items]
Basis points			1.25%
Standby letters of credit \| Maximum
Debt Instrument [Line Items]
Basis points			1.50%
Trade letter of credit
Debt Instrument [Line Items]
Commitment fee			0.625%	0.625%
Trade letter of credit \| Minimum
Debt Instrument [Line Items]
Basis points			0.625%
Trade letter of credit \| Maximum
Debt Instrument [Line Items]
Basis points			0.75%
Trade Letters Of Credit And Bankers Acceptances
Debt Instrument [Line Items]
Borrowings outstanding			$ 41,481,000
Other Miscellaneous Standby Letters Of Credit
Debt Instrument [Line Items]
Borrowings outstanding			$ 7,800,000
Industrial Revenue Bonds
Debt Instrument [Line Items]
Industrial revenue bonds, maturity date			2026
Carrying value of long term debt			$ 9,500,000	$ 9,500,000
Weighted average effective interest rate			2.80%	2.20%	1.70%
Industrial Revenue Bonds \| Standby letters of credit
Debt Instrument [Line Items]
Borrowings outstanding			$ 9,715,000