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Goodwill and Intangible Assets - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended
Jun. 30, 2018
Jul. 01, 2017
Mar. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]      
Goodwill $ 178,041   $ 3,179
Finite-lived intangibles, customer relationships 34,400    
Finite-lived intangibles, trade names 8,900    
Amortization expense $ 481 $ 126