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Segment Information - Disaggregation of Revenue by Geographic Area (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2018
Apr. 01, 2017
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]    
Total revenue $ 493,970 $ 445,763
U.S.    
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]    
Total revenue 248,980 231,311
Europe    
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]    
Total revenue 160,826 136,881
Canada    
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]    
Total revenue 48,578 47,187
Asia Pacific    
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]    
Total revenue 34,520 30,095
Other    
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]    
Total revenue $ 1,066 $ 289