Schedule II - Valuation and Qualifying Accounts (Detail) - USD ($) $ in Millions		12 Months Ended
		Jan. 01, 2022	Jan. 02, 2021	Dec. 28, 2019
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period		$ 42.6	$ 34.0	$ 34.9
Charged to costs and expense		65.1	80.3	77.5
Deductions		68.7	71.7	78.4
Balance at end of period		39.0	42.6	34.0
Allowance for doubtful accounts [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period		6.7	6.0	4.0
Charged to costs and expense		(2.4)	9.7	5.1
Deductions	[1]	0.3	9.0	3.1
Balance at end of period		4.0	6.7	6.0
Allowance for sales returns [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period		15.6	11.4	13.6
Charged to costs and expense		52.5	41.5	50.2
Deductions	[2]	51.5	37.3	52.4
Balance at end of period		16.6	15.6	11.4
Allowance for cash discounts [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period		11.2	9.3	9.0
Charged to costs and expense		9.4	19.8	15.3
Deductions	[3]	12.9	17.9	15.0
Balance at end of period		7.7	11.2	9.3
Inventory valuation allowances [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period		9.1	7.3	8.3
Charged to costs and expense		5.6	9.3	6.9
Deductions	[4]	4.0	7.5	7.9
Balance at end of period		$ 10.7	$ 9.1	$ 7.3

[1] Accounts charged off, net of recoveries.

[2] Actual customer returns.

[3] Discounts given to customers.

[4] Adjustment upon disposal of related inventories.