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Restructurings and Other - Additional Information (Detail) - USD ($) $ in Millions | 12 Months Ended
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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

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