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Share-Based Incentive Plan (Narrative) (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023	Nov. 16, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	49,222
Stock option award expiration period, in years	10 years
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	3,578,704		4,159,333
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Vested	$ 0.4
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Intrinsic Value	0.2
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Expected to Vest, Outstanding, Aggregate Intrinsic Value	0.3
Long-Term Incentive Plan 2003
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation expense, net of estimated forfeitures	$ 239.7
Weighted-average period over which total unrecognized compensation expense expected to be recognized, in years	1 year 8 months 12 days
Intrinsic value of stock-based awards exercised and restricted stock units converted	$ 137.9	$ 101.6
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 7 months 6 days
Average remaining contractual term for stock awards vested and expected to vest, in years	3 years 6 months
Average remaining contractual term for stock awards exercisable, in years	3 years 4 months 24 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