v3.26.1
BASIS OF PRESENTATION - Cash and Cash Equivalents (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Cash and Cash Equivalents.    
Cash and cash equivalents $ 778.4 $ 428.5
U.S. Markets    
Cash and Cash Equivalents.    
Cash and cash equivalents 683.6 302.6
International Markets    
Cash and Cash Equivalents.    
Cash and cash equivalents $ 94.8 $ 125.9