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DEBT - Convertible Senior Notes Narrative (Details)
3 Months Ended
Mar. 01, 2020
Feb. 24, 2020
USD ($)
Mar. 31, 2020
tradingDays
$ / shares
Feb. 29, 2020
USD ($)
Debt Instrument [Line Items]        
Redemption percentage 100.00%      
On or after March 1, 2023        
Debt Instrument [Line Items]        
Redemption percentage     100.00%  
Convertible Debt        
Debt Instrument [Line Items]        
Face amount | $       $ 600,000,000
Interest rate   0.75%    
Initial conversion rate     7.4045  
Initial conversion amount | $   $ 1,000    
Initial conversion price (in dollars per share) | $ / shares     $ 135.05  
Convertible Debt | After the calendar quarter ending on June 30, 2020        
Debt Instrument [Line Items]        
Threshold percentage of stock price trigger     130.00%  
Threshold trading days     20  
Threshold consecutive trading days     30  
Convertible Debt | Measurement Period        
Debt Instrument [Line Items]        
Threshold percentage of stock price trigger     98.00%  
Threshold consecutive trading days     5  
Threshold consecutive business days     5  
Convertible Debt | On or after March 1, 2023        
Debt Instrument [Line Items]        
Threshold percentage of stock price trigger     130.00%  
Threshold trading days     20  
Threshold consecutive trading days     30  
Convertible Debt | Additional Exercised        
Debt Instrument [Line Items]        
Face amount | $       $ 75,000,000