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Share-based Compensation - Performance-based RSU and Time-based RSU Activity (Detail) - $ / shares
shares in Thousands
12 Months Ended
Dec. 30, 2017
Dec. 31, 2016
Jan. 02, 2016
Performance-Based RSUs [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Beginning balance, Shares 3,063 1,878 1,782
Awarded 235 835 320
Awarded in connection with modification, Shares 64   55
Awarded in connection with acquisitions, Shares   584  
Issued, Shares (320)   (255)
Cancelled, Shares   (224)  
Forfeited, Shares (143) (10) (24)
Ending balance, Shares 2,899 3,063 1,878
Beginning balance, Weighted Average Grant-Date Fair Value $ 9.89 $ 7.41 $ 7.01
Vested or expected to vest at December 30, 2017 2,235    
Awarded, Weighted Average Grant-Date Fair Value $ 17.06 11.18 9.22
Awarded in connection with modification, Weighted Average Grant-Date Fair Value 11.32   7.90
Awarded in connection with acquisitions, Weighted Average Grant-Date Fair Value   15.81  
Issued, Weighted Average Grant-Date Fair Value 8.00   6.87
Cancelled, Weighted Average Grant-Date Fair Value   9.29  
Forfeited, Weighted Average Grant-Date Fair Value 15.18 9.24 8.61
Ending balance, Weighted Average Grant-Date Fair Value 9.15 $ 9.89 $ 7.41
Vested or expected to vest at December 31, 2016 $ 12.21    
Time-Based RSUs [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Beginning balance, Shares 800 827 664
Awarded 135 503 213
Awarded in connection with acquisitions, Shares   514  
Issued, Shares (409) (1,027) (10)
Forfeited, Shares (24) (17) (40)
Ending balance, Shares 502 800 827
Beginning balance, Weighted Average Grant-Date Fair Value $ 11.10 $ 8.78 $ 8.63
Vested or expected to vest at December 30, 2017 493    
Awarded, Weighted Average Grant-Date Fair Value $ 17.50 11.18 9.22
Awarded in connection with acquisitions, Weighted Average Grant-Date Fair Value   16.52  
Issued, Weighted Average Grant-Date Fair Value 10.55 12.01 8.60
Forfeited, Weighted Average Grant-Date Fair Value 12.28 8.50 8.67
Ending balance, Weighted Average Grant-Date Fair Value 13.14 $ 11.10 $ 8.78
Vested or expected to vest at December 31, 2016 $ 13.13