2.4.0.82406401 - Disclosure - Transaction with the Newport Funds (Details)truefalsefalse1false USDtruefalse$D2007Q4YTD_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_ck0001405621_NewportGlobalOpportunitiesFundLpMemberhttp://www.sec.gov/CIK0001405621duration2007-01-01T00:00:002007-12-31T00:00:00falsefalseNGOFus-gaap_RelatedPartyTransactionsByRelatedPartyAxisxbrldihttp://xbrl.org/2006/xbrldick0001405621_NewportGlobalOpportunitiesFundLpMemberus-gaap_RelatedPartyTransactionsByRelatedPartyAxisexplicitMemberusdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$2false USDtruefalse$I2014Q1_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_ck0001405621_NewportGlobalAdvisorsLpMemberhttp://www.sec.gov/CIK0001405621instant2013-05-31T00:00:000001-01-01T00:00:00falsefalseNewportus-gaap_RelatedPartyTransactionsByRelatedPartyAxisxbrldihttp://xbrl.org/2006/xbrldick0001405621_NewportGlobalAdvisorsLpMemberus-gaap_RelatedPartyTransactionsByRelatedPartyAxisexplicitMemberusdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$3false USDtruefalse$I2013Q4_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_ck0001405621_NewportGlobalAdvisorsLpMemberhttp://www.sec.gov/CIK0001405621instant2013-02-28T00:00:000001-01-01T00:00:00falsefalseNewportus-gaap_RelatedPartyTransactionsByRelatedPartyAxisxbrldihttp://xbrl.org/2006/xbrldick0001405621_NewportGlobalAdvisorsLpMemberus-gaap_RelatedPartyTransactionsByRelatedPartyAxisexplicitMemberusdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$1true 3us-gaap_RelatedPartyTransactionLineItemsus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Related Party Transaction [Line Items]2false 4us-gaap_ProceedsFromInterestReceivedus-gaap_truedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse51181725118172USD$falsetruefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryInterest received on loans and other debt instruments during the current period.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 27 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3536-108585 false2Interest payment received3false 4ck0001405621_ProceedsFromPreferredDividendsReceivedck0001405621_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse6160061600falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryProceeds from Preferred Dividends ReceivedNo definition available.false2Preferred dividends received4false 4us-gaap_DueToRelatedPartiesNoncurrentus-gaap_truecreditinstantfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalse2truefalsefalse32635433263543USD$falsetruefalse3truefalsefalse32331153233115USD$falsetruefalsexbrli:monetaryItemTypemonetaryPortion of the carrying amount as of the balance sheet date of obligations due all related parties that is payable after one year or beyond the normal operating cycle if longer.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(k)(1)) -URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph k -Subparagraph 1 -Article 4 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 57 -Paragraph 2 -Subparagraph d -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 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.23) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 23 -Article 5 false2Long-term amounts due to the Newport FundsfalseTransaction with the Newport Funds (Details) (USD $)NoRoundingUnKnownUnKnownUnKnowntruefalsefalseSheethttp://www.0001405621.com/role/TransactionWithNewportFundsDetails34