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Revenue from Contracts with Customers - Schedule of Deferred Revenue and Customer Advances by Arrangement (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018
Change in Contract with Customer, Liability [Line Items] |  |
Beginning balance, January 1 | $ 17,474 | $ 27,800
Additions to deferred revenue and customer advances | 77,727 | 73,171
Amount of deferred revenue and customer advances recognized in income | (75,046) | (83,497)
Ending balance, December 31 | 24,784 | $ 17,474
Electro Scientific Industries Inc [Member] |  |
Change in Contract with Customer, Liability [Line Items] |  |
Deferred revenue and customer advances assumed | $ 4,629 |

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