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Financing Arrangements - Convertible Senior Notes (Details)
$ / shares in Units, $ in Millions
3 Months Ended
May 04, 2020
Mar. 31, 2022
USD ($)
$ / shares
Mar. 31, 2021
USD ($)
May 31, 2020
USD ($)
$ / shares
Debt Instrument [Line Items]        
Interest expense, debt     $ 0.2  
Convertible Senior Notes        
Debt Instrument [Line Items]        
Debt instrument, capped call transaction cap price (in dollars per share) | $ / shares       $ 27.10
Convertible Senior Notes | Senior Notes        
Debt Instrument [Line Items]        
Debt instrument, face amount       $ 258.8
Interest Rate   2.75%   2.75%
Debt instrument, convertible, conversion ratio 0.0567698      
Debt instrument, convertible, conversion price (in dollars per share) | $ / shares   $ 17.62    
Interest expense, debt   $ 1.8 $ 1.8