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Equity-Based Compensation - Stock Options (Details) - 6 months ended Jun. 28, 2015 - Stock Options - $ / shares
Total
Share-based Compensation  
Vesting period 4 years
Stock option contractual term 10 years
Summary of Status of Stock Options  
Outstanding, Options at beginning of year 5,200
Exercised, Options (5,200)
Outstanding, Weighted - Average Exercise Price at beginning of year $ 12.35
Exercised, Weighted - Average Exercise Price $ 12.35
Minimum  
Share-based Compensation  
Stock option exercises, commencement period from date of grant P1Y
Maximum  
Share-based Compensation  
Stock options exercisable cumulative annual installments period 10 years