2.4.0.82408401 - Disclosure - Transactions with Sponsor (Details)truefalseIn Millions, unless otherwise specifiedfalse1false USDfalsefalse$D2013Q2YTD_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_npci_OlympusAdvisoryAgreementMemberhttp://www.sec.gov/CIK0001548621duration2012-12-26T00:00:002013-06-25T00:00:00usdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$1false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse1false USDtruefalse$D2013Q2YTD_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_npci_OlympusAdvisoryAgreementMemberhttp://www.sec.gov/CIK0001548621duration2012-12-26T00:00:002013-06-25T00:00:00falsefalseOlympus Advisory Agreement [Member]us-gaap_RelatedPartyTransactionsByRelatedPartyAxisxbrldihttp://xbrl.org/2006/xbrldinpci_OlympusAdvisoryAgreementMemberus-gaap_RelatedPartyTransactionsByRelatedPartyAxisexplicitMemberusdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0Olympus Advisory Agreement [Member]2true 4npci_TransactionsWithSponsorTextualAbstractnpci_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Transactions with Sponsor (Textual) [Abstract]3false 5us-gaap_InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissionsus-gaap_truecreditdurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse10000001.0USD$falsetruefalsexbrli:monetaryItemTypemonetaryFees and commissions from underwriting securities, private placements of securities, investment advisory and management services, merger and acquisition services, and other related consulting fees. Include fees and commissions from securities brokerage activities, from the sale and servicing of mutual funds, from the purchase and sale of securities and money market instruments where the bank is acting as agent for other banks or customers, and from the lending of securities owned by the bank or by bank customers (exclusive of trading revenue). Also includes the bank's proportionate share of the income or loss before extraordinary items and other adjustments from its investments in: unconsolidated subsidiaries, associated companies and corporate joint ventures, unincorporated joint ventures, general partnerships, and limited partnerships over which the bank exercises significant influence and that are principally engaged in investment banking, advisory, brokerage, or securities underwriting activities.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.13(b)) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher OTS -Name Federal Regulation (FR) -Number Title 12 -Section 563c.102 -Paragraph 13 -Subparagraph c -Chapter V -Subsection II -LegacyDoc This is a non-GAAP reference that was included in the 2009 taxonomy. It will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 13 -Subparagraph b -Article 9 false2Annual feefalseTransactions with Sponsor (Details) (Olympus Advisory Agreement [Member], USD $)HundredThousandsUnKnownUnKnownUnKnowntruefalsefalseSheethttp://npcinternational.com/role/TransactionsWithSponsorDetails13