Supplemental Disclosures of Cash Flow Information - Significant Noncash Investing and Financing Activities (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 29, 2019	Dec. 30, 2018
Noncash Investing And Financing Activities [Line Items]
Additions to leased property under financing leases	$ 61,121	$ 0	$ 0
Right-of-use assets obtained in exchange for operating lease obligations	42,698	38,713	0
Additions to property, plant and equipment accrued and recorded in accounts payable, trade	17,025	19,452	13,675
Class B Common Stock
Noncash Investing And Financing Activities [Line Items]
Issuance of Class B Common Stock in connection with stock award	$ 0	$ 4,776	$ 3,831