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Commitments and Contingencies Litigation (Details) (New York State Supreme Court, New York County [Member], USD $)
 0 Months Ended 0 Months Ended
Sep. 04, 2013
Successor [Member]
participant
May 17, 2013
Successor [Member]
participant
Sep. 28, 2012
Successor [Member]
llc
May 17, 2013
Successor [Member]
Pending Litigation [Member]
participant
Jan. 28, 2013
Successor [Member]
Pending Litigation [Member]
participant
Mar. 31, 2012
Successor [Member]
Pending Litigation [Member]
claim
Sep. 04, 2013
Predecessor [Member]
participant
May 17, 2013
Predecessor [Member]
participant
Sep. 28, 2012
Predecessor [Member]
llc
May 17, 2013
Predecessor [Member]
Pending Litigation [Member]
participant
Jan. 28, 2013
Predecessor [Member]
Pending Litigation [Member]
participant
Mar. 31, 2012
Predecessor [Member]
Pending Litigation [Member]
claim
Loss Contingencies [Line Items]                        
Number of claims           5           5
Damages awarded     $ 55,000,000.0           $ 55,000,000      
Percent of damages awarded required to be in cash     80.00%           80.00%      
Maximum percent of freely-tradable common stock or partnership units     20.00%           20.00%      
Number of LLC's     3           3      
Maximum difference between exchange value and prospectus statement     10.00%           10.00%      
Gross proceeds from IPO     600,000,000.0           600,000,000      
Number of plaintiffs       4,500 6         4,500 6  
Number of plaintiffs opting out of settlement 2 12         2 12        
Attorney fees sought   15,000,000           15,000,000        
Attorney expenses sought   295,895           296,000        
Attorney fees awarded   11,500,000           11,590,000        
Attorney expenses awarded   $ 265,282           $ 265,000