Long-term Debt - Outstanding Long Term Debt and Interest Rates (Phantoms) (Detail) - USD ($)
$ in Thousands
9 Months Ended
Sep. 09, 2014
Sep. 30, 2016
Aug. 14, 2013
First Lien Term Loan Due 2019 [Member] | Secured Debt [Member]      
Debt Instrument      
Interest rate at period end (percent)   3.81%  
Unamortized debt issuance costs   $ (5,153)  
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate   3.02%  
1% Senior Convertible Notes due August 15, 2018 [Member] | Convertible Debt [Member]      
Debt Instrument      
Interest rate at period end (percent)   5.88%  
Unamortized debt issuance costs   $ (22,407)  
Stated interest rate (percent)   1.00% 1.00%
Revolving Credit Facility [Member]      
Debt Instrument      
Line of Credit Facility, Interest Rate at Period End   3.02%  
London Interbank Offered Rate (LIBOR) [Member] | First Lien Term Loan Due 2019 [Member] | Secured Debt [Member]      
Debt Instrument      
Basis spread on variable interest rate (percent)   2.50%  
London Interbank Offered Rate (LIBOR) [Member] | Revolving Credit Facility [Member]      
Debt Instrument      
Basis spread on variable interest rate (percent) 3.00%    
London Interbank Offered Rate (LIBOR) [Member] | Revolving Credit Facility [Member] | Line of Credit [Member]      
Debt Instrument      
Basis spread on variable interest rate (percent)   2.50%  
Unamortized debt issuance costs   $ (2,351)