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Debt - Convertible Senior Notes (Details)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended
Jan. 06, 2021
USD ($)
shares
Jun. 01, 2020
USD ($)
D
$ / shares
Apr. 03, 2021
USD ($)
Oct. 02, 2021
USD ($)
Oct. 03, 2020
USD ($)
Jan. 02, 2021
Mar. 06, 2017
USD ($)
Debt              
Loss on debt extinguishment       $ (3,370) $ (3,977)    
0.625% Convertible Senior Notes (2025 Notes)              
Debt              
Principal amount   $ 535,000          
Semi-annual interest rate   0.625%   0.625%   0.625%  
Conversion rate, shares per $1,000 principal   8.1498          
Conversion, number of shares of common stock   4,400          
Initial conversion price | $ / shares   $ 121.98          
Debt issuance costs   $ 10,400          
0.625% Convertible Senior Notes (2025 Notes) | Conversion of Notes, Holders              
Debt              
Number of trading days within 30 trading day period | D   20          
Number of consecutive trading days | D   30          
Stock price trigger per share | $ / shares   $ 159.51          
Stock price trigger, as a percentage of conversion price   130.00%          
Number of consecutive business days after the 10 consecutive trading day period | D   5          
Number of consecutive trading days before the five consecutive business days | D   10          
Maximum threshold stock price, as a percentage of conversion price   98.00%          
0.625% Convertible Senior Notes (2025 Notes) | Conversion of Notes, Company              
Debt              
Number of trading days within 30 trading day period | D   20          
Number of consecutive trading days | D   30          
Stock price trigger, as a percentage of conversion price   130.00%          
1.375% Convertible Senior Notes (2022 Notes)              
Debt              
Principal amount             $ 400,000
Semi-annual interest rate             1.375%
1.375% Convertible Senior Notes (2022 Notes) | Conversion of Notes, Holders              
Debt              
Principal amount of notes for conversion $ 130,400            
Cash paid upon conversion $ 130,400            
Number of shares issued in connection with conversion | shares 528,022            
Debt amount redeemed $ 10,200            
1.375% Convertible Senior Notes (2022 Notes) | Conversion of Notes, Holders | Interest expense              
Debt              
Loss on debt extinguishment     $ 3,400        
1.375% Convertible Senior Notes (2022 Notes) | Conversion of Notes, Company              
Debt              
Remaining principal amount $ 140,600