2.4.0.82406408 - Disclosure - Employee Benefit Plans - Other Benefit Plans (Details)truefalseIn Millions, unless otherwise specifiedfalse1false USDfalsefalseD2012Q4YTD_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_pnk_DirectorsMedicalPlanMemberhttp://www.sec.gov/CIK0000356213duration2012-01-01T00:00:002012-12-31T00:00:00memberStandardhttp://www.pnkinc.com/20121231memberpnk0usdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170$2false USDfalsefalse$I2011Q4_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_pnk_DirectorsMedicalPlanMemberhttp://www.sec.gov/CIK0000356213instant2011-12-31T00:00:000001-01-01T00:00:00usdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$1false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse1false USDtruefalse$I2012Q4_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_pnk_ExecutivePlanMemberhttp://www.sec.gov/CIK0000356213instant2012-12-31T00:00:000001-01-01T00:00:00falsefalseExecutive Planus-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxisxbrldihttp://xbrl.org/2006/xbrldipnk_ExecutivePlanMemberus-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxisexplicitMemberusdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0Executive Plan2true 3us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Benefit Plans Table Text Block3false 4us-gaap_DefinedBenefitPlanBenefitObligationus-gaap_truecreditinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse65000006.5[1]USD$falsetruefalse2truefalsefalse75000007.5[1]USD$falsetruefalsexbrli:monetaryItemTypemonetary1) For defined benefit pension plans, the benefit obligation is the projected benefit obligation, which is the actuarial present value as of a date of all benefits attributed by the pension benefit formula to employee service rendered prior to that date. 2) For other postretirement defined benefit plans, the benefit obligation is the accumulated postretirement benefit obligation, which is the actuarial present value of benefits attributed to employee service rendered to a particular date.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph a -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. 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This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph E1 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. false2Total obligation4false 4us-gaap_CashSurrenderValueOfLifeInsuranceus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse25000002.5[2]USD$falsefalsefalse2truefalsefalse22000002.2[2]USD$falsefalsefalsexbrli:monetaryItemTypemonetaryCarrying amount as of the balance sheet date of amounts which could be received based on the terms of the insurance contract upon surrendering life policies owned by the entity.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 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 17 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 4 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6361293&loc=d3e6812-107765 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Technical Bulletin (FTB) -Number 85-4 -Paragraph 2 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. false2Cash surrender of insurance policies5false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3false USDtruefalseD2012Q4YTD_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_pnk_DirectorsMedicalPlanMemberhttp://www.sec.gov/CIK0000356213duration2012-01-01T00:00:002012-12-31T00:00:00falsefalseDirectors’ Medical Planus-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxisxbrldihttp://xbrl.org/2006/xbrldipnk_DirectorsMedicalPlanMemberus-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxisexplicitMembermemberStandardhttp://www.pnkinc.com/20121231memberpnk0usdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170$nanafalse0Directors’ Medical Plan6true 3us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Benefit Plans Table Text Block7false 4pnk_DefinedBenefitPlanBenefitObligationPeriodOfPlanpnk_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse005 yearsfalsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:durationItemTypenaDefined Benefit Plan, Benefit Obligation, Period of PlanNo definition available.false0Period of Plan8false 4pnk_DefinedBenefitPlanBenefitObligationNumberOfMembersOverThresholdAgepnk_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse22falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:integerItemTypeintegerDefined Benefit Plan, Benefit Obligation, Number of Members Over Threshold AgeNo definition available.false256Number of members over threshold age9false 4pnk_DefinedBenefitPlanBenefitObligationThresholdAgepnk_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse0070 yearsfalsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:durationItemTypenaDefined Benefit Plan, Benefit Obligation, Threshold AgeNo definition available.false0Threshold age10false 4us-gaap_DefinedBenefitPlanBenefitObligationus-gaap_truecreditinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse4000000.4USD$falsetruefalse2truefalsefalse4000000.4USD$falsetruefalsexbrli:monetaryItemTypemonetary1) For defined benefit pension plans, the benefit obligation is the projected benefit obligation, which is the actuarial present value as of a date of all benefits attributed by the pension benefit formula to employee service rendered prior to that date. 2) For other postretirement defined benefit plans, the benefit obligation is the accumulated postretirement benefit obligation, which is the actuarial present value of benefits attributed to employee service rendered to a particular date.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph a -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Projected Benefit Obligation -URI http://asc.fasb.org/extlink&oid=6522206 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Accumulated Postretirement Benefit Obligation -URI http://asc.fasb.org/extlink&oid=6503904 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 6 -Subparagraph a -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph E1 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. false2Total obligation1Recorded in "Other Long-Term Liabilities" in the Consolidated Balance Sheets.2Recorded in "Other assets, net" in the Consolidated Balance Sheets.falseEmployee Benefit Plans - Other Benefit Plans (Details) (USD $)HundredThousandsUnKnownUnKnownUnKnowntruefalsefalseSheethttp://www.pnkinc.com/role/EmployeeBenefitPlansOtherBenefitPlansDetails210