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Share-Based Compensation, Common Stock Issuances and Common Stock - Summary of Nonvested Restricted Stock Units (Detail)
12 Months Ended
Dec. 30, 2017
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Beginning balance 879,609
Granted 903,888
Vested (427,574)
Forfeited (170,078)
Ending balance 1,185,845
Beginning balance | $ / shares $ 17.68
Granted | $ / shares 29.77
Vested | $ / shares 16.64
Forfeited | $ / shares 20.76
Ending balance | $ / shares $ 26.79
Time Based Restricted Stock Units [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Beginning balance 637,336
Granted 607,432
Vested (213,879)
Forfeited (121,597)
Ending balance 909,292
Performance Restricted Stock Units [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Beginning balance 242,273
Granted 296,456
Vested (213,695)
Forfeited (48,481)
Ending balance 276,553