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FAIR VALUE MEASUREMENTS (Details) (USD $)
In Thousands, unless otherwise specified
Nov. 02, 2014
Nov. 03, 2013
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Total assets $ 0us-gaap_AssetsFairValueDisclosure $ 0us-gaap_AssetsFairValueDisclosure
Total liabilities 0us-gaap_LiabilitiesFairValueDisclosure 0us-gaap_LiabilitiesFairValueDisclosure
Fair Value [Member] | 3.25% Convertible Senior Notes [Member]    
Fair and carrying values of the Company's convertible senior notes [Abstract]    
Convertible senior notes 122,544us-gaap_ConvertibleDebtFairValueDisclosures
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_EstimateOfFairValueFairValueDisclosureMember
/ us-gaap_LongtermDebtTypeAxis
= plab_ConvertibleSeniorNotesDueOnApril2016Member
130,330us-gaap_ConvertibleDebtFairValueDisclosures
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_EstimateOfFairValueFairValueDisclosureMember
/ us-gaap_LongtermDebtTypeAxis
= plab_ConvertibleSeniorNotesDueOnApril2016Member
Fair Value [Member] | 5.5% Convertible Senior Notes [Member]    
Fair and carrying values of the Company's convertible senior notes [Abstract]    
Convertible senior notes 0us-gaap_ConvertibleDebtFairValueDisclosures
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_EstimateOfFairValueFairValueDisclosureMember
/ us-gaap_LongtermDebtTypeAxis
= plab_ConvertibleSeniorNotesDueOnOctober2014Member
37,567us-gaap_ConvertibleDebtFairValueDisclosures
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_EstimateOfFairValueFairValueDisclosureMember
/ us-gaap_LongtermDebtTypeAxis
= plab_ConvertibleSeniorNotesDueOnOctober2014Member
Carrying Value [Member] | 3.25% Convertible Senior Notes [Member]    
Fair and carrying values of the Company's convertible senior notes [Abstract]    
Convertible senior notes 115,000us-gaap_ConvertibleDebtFairValueDisclosures
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_CarryingReportedAmountFairValueDisclosureMember
/ us-gaap_LongtermDebtTypeAxis
= plab_ConvertibleSeniorNotesDueOnApril2016Member
115,000us-gaap_ConvertibleDebtFairValueDisclosures
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_CarryingReportedAmountFairValueDisclosureMember
/ us-gaap_LongtermDebtTypeAxis
= plab_ConvertibleSeniorNotesDueOnApril2016Member
Carrying Value [Member] | 5.5% Convertible Senior Notes [Member]    
Fair and carrying values of the Company's convertible senior notes [Abstract]    
Convertible senior notes $ 0us-gaap_ConvertibleDebtFairValueDisclosures
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_CarryingReportedAmountFairValueDisclosureMember
/ us-gaap_LongtermDebtTypeAxis
= plab_ConvertibleSeniorNotesDueOnOctober2014Member
$ 22,054us-gaap_ConvertibleDebtFairValueDisclosures
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_CarryingReportedAmountFairValueDisclosureMember
/ us-gaap_LongtermDebtTypeAxis
= plab_ConvertibleSeniorNotesDueOnOctober2014Member