Accounting Policies - Additional Information (Detail) - USD ($) $ in Thousands	Jan. 01, 2022	Jul. 03, 2022	Dec. 31, 2021
Summary Of Significant Accounting Policies [Line Items]
Debt		$ 64,796	$ 89,244
Retained earnings		610,234	736,566
Mezzanine equity			1,512
Additional paid-in capital		$ 1,721,586	$ 1,811,545
Increase Decrease in deferred tax assets	$ 1,800
Teradyne Member [Member]
Summary Of Significant Accounting Policies [Line Items]
Current debt,	1,400
Debt	6,600
Retained earnings	94,600
Mezzanine equity	99,300
Additional paid-in capital	99,300
Teradyne Member [Member] | Accounting Standards Update 2020-06 [Member] | Revision of Prior Period, Accounting Standards Update, Adjustment [Member]
Summary Of Significant Accounting Policies [Line Items]
Mezzanine equity	$ 0