Share-Based Incentive Plan (Narrative) (Details) - USD ($) $ in Millions		9 Months Ended
	Nov. 16, 2020	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period		16,710
Stock option award expiration period, in years		10 years
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number		4,280,676		4,449,642
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Vested		$ 0.5
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Intrinsic Value		0.3
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Expected to Vest, Outstanding, Aggregate Intrinsic Value		0.5
Long-Term Incentive Plan 2003
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	6,757,640
Total unrecognized compensation expense, net of estimated forfeitures		$ 238.1
Weighted-average period over which total unrecognized compensation expense expected to be recognized, in years		1 year 6 months
Intrinsic value of stock-based awards exercised and restricted stock units converted		$ 109.5	$ 39.6
Common Stock, Capital Shares Reserved for Future Issuance	13,535,627
Long-Term Incentive Plan 2003 | Stock awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Average remaining contractual term for stock awards outstanding, in years		3 years 10 months 24 days
Average remaining contractual term for stock awards vested and expected to vest, in years		3 years 10 months 24 days
Average remaining contractual term for stock awards exercisable, in years		3 years 8 months 12 days
Long-Term Incentive Plan 2003 | Stock awards | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option award vesting period, in years		3 years
Long-Term Incentive Plan 2003 | Stock awards | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option award vesting period, in years		4 years
2020 Stock Incentive Plan and 2003 Long-Term Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Ordinary shares reserved for issuance	72,500,000