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Debt - Carrying amount of Notes (Details) - USD ($)
$ in Thousands
12 Months Ended
Jan. 01, 2022
Jan. 02, 2022
Jan. 02, 2021
0.625% Convertible Senior Notes (2025 Notes)      
Equity component      
Effective interest rate 5.336%    
Amortization period of debt discount and debt issuance costs 3 years 6 months    
0.625% Convertible Senior Notes (2025 Notes) | ASU 2020-06 | Pro Forma      
Equity component      
Increase in carrying value of convertible debt   $ 78,500  
1.375% Convertible Senior Notes (2022 Notes)      
Equity component      
Effective interest rate 4.75%    
Convertible Senior Notes      
Liability component      
Principal $ 535,000   $ 675,567
Unamortized debt discount (78,519)   (103,953)
Unamortized debt issuance costs (5,882)   (8,189)
Net carrying amount 450,599   563,425
Equity component      
Net carrying amount $ 107,928   $ 108,438