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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - SUPPLEMENTAL DISCLOSURE OF NON-CASH ITEMS (Parenthetical) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - SUPPLEMENTAL DISCLOSURE OF NON-CASH ITEMS    
Accrued liabilities for intangible assets $ 11.7 $ 9.6
Accounts payable for purchases of equipment 3.2 $ 2.5
Accounts receivable related to available-for-sale short-term investment sales 3.0  
Accured liabilities purchased from employees $ 55.3