LONG-TERM DEBT - Maturities of Long-Term Debt, Excluding Unamortized Debt Issuance Costs (Detail) $ in Millions	Dec. 31, 2024 USD ($)
Debt Disclosure [Abstract]
2025	$ 466.4
2026	6.4
2027	6.4
2028	771.4
2029	6.4
Thereafter	1,106.7
Total	$ 2,363.7	[1]

[1] The only difference between the long-term debt maturity payments for Holdings, as presented above, and those for CUSA is the $460.0 of Holdings’ 4.50% Convertible Senior Notes that mature in 2025.