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Significant Accounting Policies, Convertible Debt (Details)
Mar. 31, 2022
Dec. 31, 2021
Mar. 31, 2021
0 Percent Convertible Senior Notes [Member]      
Convertible Debt [Abstract]      
Interest rate on convertible senior notes 0.00% 0.00%  
Effective interest rate 0.50%    
0.125 Percent Convertible Senior Notes [Member]      
Convertible Debt [Abstract]      
Interest rate on convertible senior notes 0.125% 0.125% 0.125%
Effective interest rate 0.50%