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Goodwill and Intangible Assets - Intangible Assets (Parenthetical) (Detail) - USD ($)
$ in Thousands
12 Months Ended
Feb. 01, 2019
Dec. 31, 2019
Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]      
Accumulated Amortization   $ 307,982 $ 244,025
Customer Relationships [Member]      
Finite-Lived Intangible Assets [Line Items]      
Accumulated Amortization   84,167 63,788
Patents, Trademarks, Trade Names and Other [Member]      
Finite-Lived Intangible Assets [Line Items]      
Accumulated Amortization   45,505 $ 42,954
Electro Scientific Industries Inc [Member]      
Finite-Lived Intangible Assets [Line Items]      
Acquired intangible assets, purchase price $ 316,200    
Accumulated Amortization   316,200  
Finite lived intangible asset , gross favorable lease   6,428  
Electro Scientific Industries Inc [Member] | Customer Relationships [Member]      
Finite-Lived Intangible Assets [Line Items]      
Acquired intangible assets, purchase price $ 25,400 25,400  
Electro Scientific Industries Inc [Member] | Patents, Trademarks, Trade Names and Other [Member]      
Finite-Lived Intangible Assets [Line Items]      
Accumulated Amortization   3,445  
Electro Scientific Industries Inc [Member] | Completed Technology [Member]      
Finite-Lived Intangible Assets [Line Items]      
Acquired intangible assets, purchase price   274,000  
Electro Scientific Industries Inc [Member] | Trademarks Tradenames and Backlog [Member]      
Finite-Lived Intangible Assets [Line Items]      
Acquired intangible assets, purchase price   $ 16,800