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Subsequent Event - Additional Information (Detail) - USD ($)
Feb. 01, 2019
Apr. 29, 2016
Subsequent Event [Line Items]    
Business acquisition, share price   $ 23.00
Secured Debt [Member] | Electro Scientific Industries Inc [Member] | Asset Based Credit Agreement [Member] | Subsequent Event [Member] | Deutsche Bank AG New York [Member]    
Subsequent Event [Line Items]    
Secured term loan, terminated $ 50,000,000  
Secured Debt [Member] | Electro Scientific Industries Inc [Member] | Asset Based Credit Agreement [Member] | Subsequent Event [Member] | Barclays Bank PLC [Member]    
Subsequent Event [Line Items]    
Secured term loan, face amount $ 100,000,000  
Definitive Merger Agreement[Member] | Electro Scientific Industries Inc [Member] | Subsequent Event [Member]    
Subsequent Event [Line Items]    
Business acquisition, share price $ 30.00  
Business acquisition, total cash consideration $ 1,000,000,000  
Definitive Merger Agreement[Member] | Maximum [Member] | Electro Scientific Industries Inc [Member] | Subsequent Event [Member]    
Subsequent Event [Line Items]    
Business acquisition, term loan debt financing $ 650,000,000