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EQUITY COMPENSATION PLANS (Details) (USD $)
3 Months Ended
May 02, 2015
item
May 03, 2014
Options    
EQUITY COMPENSATION PLANS    
Vesting period 3 years  
Number of grant date anniversaries 3pby_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfGrantDateAnniversaries
/ us-gaap_AwardTypeAxis
= pby_StockOptions1Member
 
Shares    
Granted (in shares) 611,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= pby_StockOptions1Member
677,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= pby_StockOptions1Member
Information about options    
Weighted average fair value at grant date fair value (in dollars per share) $ 3.15us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= pby_StockOptions1Member
$ 3.95us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= pby_StockOptions1Member
Additional disclosures    
Options expiration term 7 years  
Performance Based Awards | Return on invested capital target    
Number of RSUs    
Granted (in shares) 116,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember
/ us-gaap_VestingAxis
= pby_ReturnOnInvestedCapitalTargetMember
153,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember
/ us-gaap_VestingAxis
= pby_ReturnOnInvestedCapitalTargetMember
Additional disclosures    
Fair value at grant date (in dollars per share) $ 9.31us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember
/ us-gaap_VestingAxis
= pby_ReturnOnInvestedCapitalTargetMember
$ 10.26us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember
/ us-gaap_VestingAxis
= pby_ReturnOnInvestedCapitalTargetMember
Performance Based Awards | Return on invested capital target | Minimum    
Additional disclosures    
Number of underlying shares issued upon vesting (as a percent) 0.00%pby_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingRightsPercentage
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
/ us-gaap_VestingAxis
= pby_ReturnOnInvestedCapitalTargetMember
 
Performance Based Awards | Return on invested capital target | Maximum    
Additional disclosures    
Number of underlying shares issued upon vesting (as a percent) 150.00%pby_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingRightsPercentage
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_VestingAxis
= pby_ReturnOnInvestedCapitalTargetMember
 
Performance Based Awards | Total shareholder return target    
Number of RSUs    
Granted (in shares) 58,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember
/ us-gaap_VestingAxis
= pby_TotalShareholderReturnTargetMember
76,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember
/ us-gaap_VestingAxis
= pby_TotalShareholderReturnTargetMember
Additional disclosures    
Fair value at grant date (in dollars per share)   $ 9.13us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember
/ us-gaap_VestingAxis
= pby_TotalShareholderReturnTargetMember
The anniversary, from date of grant, through which an employee must be continuously employed in order to vest in the award 3 years 3 years
Performance Based Awards | Total shareholder return target | Minimum    
Additional disclosures    
Number of underlying shares issued upon vesting (as a percent) 0.00%pby_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingRightsPercentage
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
/ us-gaap_VestingAxis
= pby_TotalShareholderReturnTargetMember
0.00%pby_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingRightsPercentage
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
/ us-gaap_VestingAxis
= pby_TotalShareholderReturnTargetMember
Performance Based Awards | Total shareholder return target | Maximum    
Additional disclosures    
Number of underlying shares issued upon vesting (as a percent) 175.00%pby_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingRightsPercentage
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_VestingAxis
= pby_TotalShareholderReturnTargetMember
175.00%pby_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingRightsPercentage
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_VestingAxis
= pby_TotalShareholderReturnTargetMember
RSUs    
Number of RSUs    
Granted (in shares) 87,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
115,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
Information about RSUs    
Weighted average fair value at grant date per unit (in dollars per share) $ 9.31us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember
$ 10.26us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember