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Debt and Credit Arrangements - 2024 Convertible Notes (Details) - Convertible notes due November 2024 - Convertible Debt
$ / shares in Units, shares in Thousands
Oct. 31, 2017
$ / shares
shares
Sep. 30, 2024
USD ($)
$ / shares
Dec. 31, 2023
USD ($)
Nov. 06, 2017
USD ($)
Debt Instrument        
Debt instrument stated interest rate (percent)       1.00%
Debt instrument face amount | $   $ 258,700,000 $ 258,700,000 $ 258,800,000
Debt instrument effective interest rate (percent)       1.40%
Share conversion rate 0.0170285      
Debt instrument, conversion price (usd per share) $ 58.725 $ 58.725    
Debt instrument, conversion premium (percent) 35.00%      
Share price (usd per share) $ 43.50 $ 124.14    
Value of securities above principal amount of debt if converted | $   $ 288,200,000    
Number of shares underlying warrant (shares) | shares 4,410      
Percentage above previous sales price (percent) 65.00%      
Maximum        
Debt Instrument        
Debt instrument, conversion price (usd per share) $ 71.775