XML 39 R21.htm IDEA: XBRL DOCUMENT v2.4.1.9
Marketable Securities, Eldorado Resorts, Inc. (Details) (USD $)
0 Months Ended 3 Months Ended
Sep. 19, 2014
Nov. 30, 2014
Dec. 31, 2007
Feb. 28, 2014
Schedule of Equity Method Investments [Line Items]        
Change in net unrealized holding gain (loss) $ (6,500,000)us-gaap_AvailableForSaleSecuritiesChangeInNetUnrealizedHoldingGainLossNetOfTax $ 800,000us-gaap_AvailableForSaleSecuritiesChangeInNetUnrealizedHoldingGainLossNetOfTax    
Investment     38,000,000us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures  
Eldorado        
Schedule of Equity Method Investments [Line Items]        
Equity method investee percentage ownership in JV (percent)   17.0359%ck0001405621_EquityInvesteeOwnershipInterestInJointVenture
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= ck0001405621_EldoradoLLCMember
   
Investment   16,686,022us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= ck0001405621_EldoradoLLCMember
  0us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= ck0001405621_EldoradoLLCMember
Mesquite        
Schedule of Equity Method Investments [Line Items]        
Ownership percentage in equity method investment (percent)   40.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= ck0001405621_MesquiteGamingLLCMember
   
Common stock issued (shares) 4,040,440us-gaap_CommonStockSharesIssued
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= ck0001405621_MesquiteGamingLLCMember
     
Par value (usd per share) $ 0.00001us-gaap_CommonStockParOrStatedValuePerShare
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= ck0001405621_MesquiteGamingLLCMember
$ 0.00001us-gaap_CommonStockParOrStatedValuePerShare
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= ck0001405621_MesquiteGamingLLCMember
   
Equity method investee percentage ownership in JV (percent) 8.60%ck0001405621_EquityInvesteeOwnershipInterestInJointVenture
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= ck0001405621_MesquiteGamingLLCMember
8.60%ck0001405621_EquityInvesteeOwnershipInterestInJointVenture
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= ck0001405621_MesquiteGamingLLCMember
   
Investment   $ 4,065,222us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= ck0001405621_MesquiteGamingLLCMember
  $ 29,740,795us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= ck0001405621_MesquiteGamingLLCMember