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Shareholders' Equity - Summary of Common Shares Outstanding (Details) - shares
3 Months Ended
Mar. 31, 2016
Mar. 29, 2015
Roll forward of common shares outstanding    
Balance at the beginning of the year 32,548,477 33,392,060
Repurchases 0 (164,852)
Restricted share issuances 210,166 75,039
Balance at the end of the period 32,758,643 33,302,247