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Goodwill and Other Intangibles - Additional Information (Detail) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2018
Jul. 01, 2017
Jun. 30, 2018
Jul. 01, 2017
Jul. 31, 2018
Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]            
Goodwill $ 357,507   $ 357,507     $ 359,819
Goodwill foreign currency translation adjustments     2,000      
Intangible assets, gross foreign currency translation adjustments     (15,000)      
Intangible assets, accumulated amortization foreign currency translation adjustments     (11,000)      
Amortization expense 12,000 $ 12,000 25,000 $ 22,000    
Future amortization expense, year 1 52,000   52,000      
Future amortization expense, year 2 52,000   52,000      
Future amortization expense, year 3 52,000   52,000      
Future amortization expense, year 4 52,000   52,000      
Future amortization expense, year 5 $ 52,000   $ 52,000      
Subsequent Event [Member]            
Finite-Lived Intangible Assets [Line Items]            
Intangible Assets Acquired         $ 30,000