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Debt, Obligations Under Capital Leases and Deemed Landlord Financing Liabilities - Subordinated Notes (Details) - USD ($)
$ in Thousands
1 Months Ended 6 Months Ended 12 Months Ended
Apr. 30, 2014
Jun. 30, 2015
Dec. 30, 2014
Mar. 31, 2015
Mar. 20, 2015
Debt Instrument [Line Items]          
Outstanding amount of subordinated notes       $ 111,200  
Predecessor          
Debt Instrument [Line Items]          
Outstanding amount of subordinated notes     $ 108,100   $ 111,200
Interest expenses related to subordinated notes   $ 3,100 15,400    
Payments for debt issue costs $ 500 $ 593 $ 392