Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt - Additional Information (Detail1)

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Long-Term Debt - Additional Information (Detail1) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Dec. 31, 2023
Aug. 16, 2018
Debt Instrument [Line Items]        
Borrowings under the senior secured credit facility $ 941.0   $ 883.7  
Interest expense 41.6 $ 41.8    
Outstanding principal amount 2,424.7      
2018 Credit Facility [Member]        
Debt Instrument [Line Items]        
Credit facility, amount borrowed 160.0 71.0    
Credit facility, amount repaid 103.5 138.2    
Borrowings under the senior secured credit facility 943.2   886.7  
Interest expense 18.9 17.1    
Non-cash interest expense 0.1 0.1    
Amortization of deferred financing costs 0.8 0.5    
2018 Credit Facility [Member] | Level 2 [Member]        
Debt Instrument [Line Items]        
Borrowings under the senior secured credit facility 130.0      
2018 Credit Facility [Member] | Foreign Currency [Member]        
Debt Instrument [Line Items]        
Foreign currency borrowings 0.0   0.0  
2018 Term Loan B [Member] | 2018 Credit Facility [Member]        
Debt Instrument [Line Items]        
Prepayment of term loan 66.3      
Borrowings under the senior secured credit facility 584.3   650.6  
Outstanding principal amount       $ 750.0
2018 Term Loan B [Member] | 2018 Credit Facility [Member] | Level 2 [Member]        
Debt Instrument [Line Items]        
Outstanding principal amount 582.5   648.2  
Debt instrument, fair value 582.8   650.6  
2018 Term Loan A [Member] | 2018 Credit Facility [Member]        
Debt Instrument [Line Items]        
Borrowings under the senior secured credit facility 228.9   236.1  
Outstanding principal amount       $ 250.0
2018 Term Loan A [Member] | 2018 Credit Facility [Member] | Level 2 [Member]        
Debt Instrument [Line Items]        
Outstanding principal amount 228.5   235.5  
Debt instrument, fair value 228.3   236.1  
2018 Revolving Credit Facility [Member]        
Debt Instrument [Line Items]        
Credit facility, amount repaid 30.0 $ 131.0    
2018 Revolving Credit Facility [Member] | 2018 Credit Facility [Member]        
Debt Instrument [Line Items]        
Borrowings under the senior secured credit facility $ 130.0   $ 0.0