Income Taxes - Effective Income Tax Amount (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Amount
U.S federal statutory federal income tax rate	$ 37.2
State and local income taxes, net of federal income tax effect	11.2
Foreign tax effects
Statutory interest deduction	(22.7)
Effects of changes in tax laws or rates enacted in the current period
Effect of cross-border tax laws
Subpart F, including GILTI, net of related foreign tax credits	11.9
Elimination of intercompany transactions	17.5
Change in indefinite reinvestment assertion	63.6
Tax Credits
Research Credits	(5.4)
Nontaxable or nondeductible items
Nondeductible executive compensation	3.2
Other nondeductible expenses	2.1
Changes in unrecognized tax benefits	(1.2)
Income tax expense	$ 130.2	$ 33.9	$ 45.3
Percentage of Pretax Income
Statutory federal income tax rate	21.00%	21.00%	21.00%
State income taxes (net of federal income tax benefit)	6.30%	3.60%	21.20%
Foreign Tax Effects, Percent [Abstract]
Tax rate differential from U.S. federal statutory rate		1.50%	43.90%
Statutory interest deduction	12.80%
Effects of changes in tax laws or rates enacted in the current period
Effect of cross-border tax laws
Subpart F, including GILTI, net of related foreign tax credits	6.70%
Elimination of intercompany transactions	9.90%
Change in indefinite reinvestment assertion	35.90%
Tax Credits
Research and experimentation credits and other	(3.00%)	0.50%	10.50%
Nontaxable or nondeductible items
Nondeductible executive compensation	1.80%
Other nondeductible expenses	1.20%
Nondeductible goodwill impairment		(21.80%)	(96.70%)
Changes in unrecognized tax benefits	(0.60%)
Unremitted foreign earnings		(1.60%)	0.00%
Effective income tax rate	73.50%	(3.10%)	(82.50%)
Luxembourg
Foreign tax effects
Tax rate differential from U.S. federal statutory rate	$ 3.3
Other	$ 0.6
Foreign Tax Effects, Percent [Abstract]
Tax rate differential from U.S. federal statutory rate	1.90%
Other	0.30%
Switzerland
Foreign tax effects
Tax rate differential from U.S. federal statutory rate	$ (2.3)
Changes in valuation Allowances	9.9
Other	$ 0.2
Foreign Tax Effects, Percent [Abstract]
Tax rate differential from U.S. federal statutory rate	(1.30%)
Changes in valuation Allowances	5.60%
Other	0.10%
Other foreign
Foreign tax effects
Other	$ 9.8
Foreign Tax Effects, Percent [Abstract]
Other	5.50%
United States
Foreign tax effects
Changes in valuation Allowances	$ (7.3)
Other	$ (1.4)
Foreign Tax Effects, Percent [Abstract]
Changes in valuation Allowances	(4.10%)
Other	(0.90%)