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Long Term Debt - Summary (Detail) - USD ($)
$ in Thousands
Jul. 04, 2015
Dec. 31, 2014
Jun. 28, 2014
Dec. 31, 2013
Debt Instrument [Line Items]        
Total debt $ 265,039     $ 290,052
Less current portion 27 $ 26 $ 26 26
Total long-term debt $ 265,012 $ 290,026 $ 317,664 $ 290,026
Weighted-average interest rate (percent) 8.02%     8.20%
Senior Unsecured Notes        
Debt Instrument [Line Items]        
Long-Term Debt $ 200,000     $ 200,000
Fixed rate, note (percent) 9.75%      
Senior Secured Term Loan        
Debt Instrument [Line Items]        
Long-Term Debt $ 0     90,000
Floating rate, note (percent) 4.75%      
New revolving credit facility        
Debt Instrument [Line Items]        
Long-Term Debt $ 65,000     0
Other Debt        
Debt Instrument [Line Items]        
Long-Term Debt $ 39     $ 52
Fixed rate, note (percent) 5.41%