Other Liabilities - Summary of Other Liabilities (Detail) - USD ($) $ in Thousands	Apr. 02, 2021	Dec. 31, 2020
Other Liabilities Disclosure [Abstract]
Noncurrent portion of acquisition related contingent consideration	$ 397,732	$ 398,674
Accruals for executive benefit plans	133,539	144,101
Noncurrent deferred proceeds from related parties	108,590	109,361
Noncurrent portion of deferred payroll taxes under CARES Act	18,706	18,706
Other	8,318	8,438
Total other liabilities	$ 666,885	$ 679,280