DEBT - Schedule of Outstanding Letters of Credit and Unused Portion of Senior Credit Facility (Detail) - Senior credit facility - Line of credit - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Outstanding stand-by letters of credit under Senior Credit Facility	$ 59.0	$ 60.1
Unused portion of the Revolving Credit Facility	$ 1,110.0	$ 985.7