Quarterly report pursuant to Section 13 or 15(d)

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details)

v3.23.3
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details)
shares in Millions, $ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2023
USD ($)
shares
Sep. 30, 2022
USD ($)
segment
shares
Sep. 30, 2023
USD ($)
acquisition
shares
Sep. 30, 2022
USD ($)
shares
Aug. 07, 2023
USD ($)
Dec. 31, 2022
USD ($)
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]            
Fair value of long-term debt $ 5,100.0   $ 5,100.0     $ 4,800.0
Carrying value of long-term debt 5,600.0   $ 5,600.0     $ 5,300.0
Number of acquisitions | acquisition     2      
Carrying value of equity investment   $ 58.0   $ 58.0    
Loss on equity investment 0.2          
Gain on equity investment     $ 7.0      
Unrealized gain (loss) on equity investment   5.7   (0.7)    
Gain to fully impair investment 6.2 $ 27.5 6.2 $ 27.5    
Number of equity investments sold | segment   2        
BVS            
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]            
Carrying value of equity investment         $ 88.9  
Other Current Assets            
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]            
Restricted cash and cash equivalents 28.7   28.7      
Other Current Liabilities            
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]            
Restricted cash and cash equivalents $ 28.7   $ 28.7      
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