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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - SUPPLEMENTAL DISCLOSURE OF NON-CASH ITEMS (Parenthetical) - USD ($)
$ in Millions
 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
CONSOLIDATED STATEMENTS OF CASH FLOWS - SUPPLEMENTAL DISCLOSURE OF NON-CASH ITEMS    
Accrued liabilities for intangible assets $ 9.6 $ 3.4
Accounts payable for purchase of available-for-sale short-term investment   3.4
Accounts payable for purchases of equipment 2.0 $ 0.1
Included in accounts payable related to additions to other intangible assets $ 3.2