Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($)		Jul. 02, 2021		Jan. 01, 2021
Assets
Trading securities held in deferred compensation plan		$ 103,554,000		$ 88,747,000
Total		205,126,000		185,190,000
Liabilities
Deferred compensation plan		104,609,000	[1]	88,977,000	[2]
Total		104,609,000		88,977,000
Money market securities
Assets
Money market securities	[3]	101,572,000		51,442,000
Fixed income securities
Assets
Fixed income available for sale securities	[4]			45,001,000
Trading securities held in deferred compensation plan		24,818,000	[2]	26,274,000	[4]
Equity securities
Assets
Trading securities held in deferred compensation plan	[2]	78,736,000		62,473,000
Fair Value, Inputs, Level 1
Assets
Total		205,126,000		140,189,000
Liabilities
Deferred compensation plan		104,609,000	[1]	88,977,000	[2]
Total		104,609,000		88,977,000
Fair Value, Inputs, Level 1 | Money market securities
Assets
Money market securities	[3]	101,572,000		51,442,000
Fair Value, Inputs, Level 1 | Fixed income securities
Assets
Fixed income available for sale securities	[4]			0
Trading securities held in deferred compensation plan		24,818,000	[2]	26,274,000	[4]
Fair Value, Inputs, Level 1 | Equity securities
Assets
Trading securities held in deferred compensation plan	[2]	78,736,000		62,473,000
Fair Value, Inputs, Level 2
Assets
Total		0		45,001,000
Liabilities
Deferred compensation plan		0	[1]	0	[2]
Total		0		0
Fair Value, Inputs, Level 2 | Money market securities
Assets
Money market securities	[3]	0		0
Fair Value, Inputs, Level 2 | Fixed income securities
Assets
Fixed income available for sale securities	[4]			45,001,000
Trading securities held in deferred compensation plan		0	[2]	0	[4]
Fair Value, Inputs, Level 2 | Equity securities
Assets
Trading securities held in deferred compensation plan	[2]	0		0
Fair Value, Inputs, Level 3
Assets
Total		0		0
Liabilities
Deferred compensation plan		0	[1]	0	[2]
Total		0		0
Fair Value, Inputs, Level 3 | Money market securities
Assets
Money market securities	[3]	0		0
Fair Value, Inputs, Level 3 | Fixed income securities
Assets
Fixed income available for sale securities	[4]			0
Trading securities held in deferred compensation plan		0	[2]	0	[4]
Fair Value, Inputs, Level 3 | Equity securities
Assets
Trading securities held in deferred compensation plan	[2]	$ 0		$ 0

[1] Included in accrued payroll and employee benefits and deferred compensation plan liabilities on the Company’s unaudited condensed consolidated balance sheet.

[2] Included in prepaid expenses and other current assets and deferred compensation plan assets on the Company’s unaudited condensed consolidated balance sheet.

[3] Included in cash and cash equivalents on the Company’s unaudited condensed consolidated balance sheet.

[4] Included in short-term investments on the Company’s unaudited condensed consolidated balance sheet.