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Debt and Financing Arrangements - Additional Information (Details)
$ / shares in Units, shares in Millions
6 Months Ended
Jun. 25, 2020
USD ($)
day
$ / shares
shares
Jul. 31, 2020
USD ($)
Jul. 31, 2019
USD ($)
Jun. 30, 2020
USD ($)
Debt Instrument [Line Items]        
Net proceeds from debt offering, after deducting initial purchaser discounts and debt issuance costs paid or payable | $ $ 278,200,000      
Conversion rate 0.0249507      
Initial conversion price (in dollars per share) | $ / shares $ 40.08      
Carrying amount of equity component representing conversion option | $ $ 70,800,000 $ 70,768,000    
Issuance costs attributable to equity component | $   2,290,000    
Net cost incurred to purchase Capped Calls | $ $ 35,700,000 35,708,000 $ 0  
Capped Calls        
Debt Instrument [Line Items]        
Initial strike price (in dollars per share) | $ / shares $ 40.08      
Cap price (in dollars per share) | $ / shares $ 61.66      
Number of shares of common stock covered by Capped Calls (in shares) | shares 7.2      
Automatic exercise period for Capped Calls, trading days 40      
Debt Conversion Terms, One        
Debt Instrument [Line Items]        
Threshold trading days 20      
Threshold consecutive trading days 30      
Threshold percentage of stock price trigger 130.00%      
Debt Conversion Terms, Two        
Debt Instrument [Line Items]        
Threshold trading days 5      
Threshold consecutive trading days 10      
Threshold percentage of product of last reported sales price of common stock and conversion rate on each such trading day 98.00%      
On or after July 6, 2023        
Debt Instrument [Line Items]        
Threshold trading days 20      
Threshold consecutive trading days 30      
Threshold percentage of stock price trigger 130.00%      
Convertible Senior Notes        
Debt Instrument [Line Items]        
Aggregate principal amount of debt issued | $ $ 287,500,000     $ 287,500,000
Stated interest rate 1.25%     1.25%
Event of default, option to accelerate amounts due, minimum percentage of aggregate principal amount of outstanding debt 25.00%      
Effective interest rate 7.88%      
Issuance costs attributable to liability component | $   $ 7,000,000.0    
Convertible Senior Notes | Discount Rate        
Debt Instrument [Line Items]        
Liability component calculation, measurement input 0.0730      
Convertible Senior Notes | On or after July 6, 2023        
Debt Instrument [Line Items]        
Redemption, threshold trading days immediately preceding maturity date 41      
Redemption price, percentage of principal amount to be redeemed 100.00%      
Convertible Senior Notes | Fundamental Change        
Debt Instrument [Line Items]        
Redemption price, percentage of principal amount to be redeemed 100.00%