Restructurings and Other - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019
Restructuring Cost And Other Cost [Line Items]
Restructuring charges	$ 2.7	$ 5.5
Other restructuring charges, facility cost	7.2
Newport Corporation
Restructuring Cost And Other Cost [Line Items]
Insurance reimbursement received	$ 0.5
Legal settlement from a contractual obligation		$ 1.5

Amount of other expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses associated with a discontinued operation or an asset retirement obligation.

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