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Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Detail) - USD ($)
$ in Millions
Dec. 29, 2024
Dec. 31, 2023
Jan. 01, 2023
Jan. 02, 2022
Deferred tax assets:        
Lease liability $ 46.2 $ 47.2    
Allowance for returns and discounts 38.4 42.3    
Inventory reserve 14.7 14.0    
Stock-based compensation 9.7 15.8    
Tax loss, interest expense and credit carryforwards 468.7 603.8    
Research & development expenses 95.7 75.9    
Employee related obligations 13.2 6.0    
Other, net 0.0 10.8    
Total deferred tax assets 686.6 815.8    
Valuation allowance for deferred tax assets (142.4) (274.7) $ (251.3) $ (2.3)
Total deferred tax assets, net of valuation allowance 544.2 541.1    
Deferred tax liabilities:        
Right-of-use assets (38.9) (38.9)    
Intangible assets (468.6) (554.2)    
Property, plant and equipment (107.5) (114.3)    
Other, net (5.7) 0.0    
Total deferred tax liabilities (620.7) (707.4)    
Net deferred tax liabilities $ (76.5) $ (166.3)