Quarterly report pursuant to Section 13 or 15(d)

Long-term Debt - Narrative (Details)

v3.20.2
Long-term Debt - Narrative (Details) - USD ($)
6 Months Ended
Sep. 30, 2020
Mar. 31, 2020
First Lien Term Loan | Secured Debt    
Debt Instrument [Line Items]    
Debt instrument, face amount $ 950,000,000.0  
Revolving credit facility | Line of Credit | Revolving Credit Facility    
Debt Instrument [Line Items]    
Maximum borrowing capacity 60,000,000.0  
Available borrowing capacity $ 44,400,000 $ 44,700,000
Commitment fee percentage 0.25%  
Fronting fee percentage 0.125%  
Revolving credit facility | Line of Credit | Letter of Credit    
Debt Instrument [Line Items]    
Maximum borrowing capacity $ 25,000,000.0  
Letters of credit issued $ 15,600,000 $ 15,300,000
Alternative Base Rate | First Lien Term Loan | Secured Debt    
Debt Instrument [Line Items]    
Basis spread on variable interest rate 1.25%  
London Interbank Offered Rate (LIBOR) | First Lien Term Loan | Secured Debt    
Debt Instrument [Line Items]    
Basis spread on variable interest rate 2.25%