Quarterly report pursuant to Section 13 or 15(d)

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details)

v3.24.2
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details)
shares in Millions, $ in Millions
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2024
USD ($)
shares
Jun. 30, 2023
USD ($)
shares
Jun. 30, 2024
USD ($)
shares
Jun. 30, 2023
USD ($)
shares
Dec. 31, 2023
USD ($)
acquisition
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]          
Fair value of long-term debt $ 5,300.0   $ 5,300.0   $ 5,300.0
Carrying value of long-term debt 5,500.0   5,500.0   $ 5,500.0
Number of acquisitions | acquisition         2
Carrying value of equity investment   $ 87.7   $ 87.7  
Unrealized gain (loss) on equity investment   4.3   $ 7.2  
Gain on sale of investment   $ 6.2      
Other Current Assets          
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]          
Restricted cash and cash equivalents 36.8   36.8    
Other Current Liabilities          
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]          
Restricted cash and cash equivalents $ 36.8   $ 36.8    
Stock options          
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]          
Antidilutive stock options (in shares) | shares 0.0 0.0 0.0 0.0