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Credit Arrangements and Debt Obligations - Additional Information (Detail)
3 Months Ended 6 Months Ended
Apr. 24, 2020
USD ($)
Apr. 23, 2020
USD ($)
Oct. 31, 2017
USD ($)
Jun. 30, 2021
Mar. 31, 2021
Dec. 31, 2020
Sep. 30, 2020
Jun. 30, 2020
USD ($)
Jun. 30, 2019
USD ($)
Jun. 30, 2020
USD ($)
Jun. 30, 2019
USD ($)
May 31, 2020
USD ($)
May 07, 2020
USD ($)
Mar. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Debt Instrument [Line Items]                              
Borrowing outstanding under revolving credit facility               $ 0   $ 0         $ 0
Debt issuance costs                       $ 2,800,000      
Amortization of deferred financing costs               600,000 $ 400,000 1,000,000.0 $ 800,000        
Amortization of debt issuance cost               100,000 $ 100,000 200,000 $ 200,000        
Derivative, interest rate (percent)     3.65%                        
Net loss to be reclassified from accumulated other comprehensive loss and recorded to interest expense during the next twelve months               $ (5,800,000)   (5,800,000)          
Secured Debt | Senior Credit Facilities                              
Debt Instrument [Line Items]                              
Quarterly principal payments                   $ 2,700,000          
Revolving Credit Facility                              
Debt Instrument [Line Items]                              
Weighted average interest rate (percent)               4.49% 3.75% 4.49% 3.75%        
Revolving Credit Facility | Senior Credit Facilities                              
Debt Instrument [Line Items]                              
Credit facility, maximum borrowing capacity $ 385,000,000 $ 225,000,000                   $ 400,000,000 $ 400,000,000 $ 225,000,000  
Gross leverage ratio               6.00              
Revolving Credit Facility | Senior Credit Facilities | Forecast                              
Debt Instrument [Line Items]                              
Gross leverage ratio         7.50 8.00 7.50                
Net leverage ratio       4.25                      
Term Loan | Senior Credit Facilities                              
Debt Instrument [Line Items]                              
Effective interest rate for the term loans (percent)               2.50%   2.50%         3.55%
Weighted average interest rate (percent)               3.00% 4.24% 3.00% 4.24%        
Minimum | Revolving Credit Facility | Senior Credit Facilities                              
Debt Instrument [Line Items]                              
Commitment fee on unused capacity (percent) 0.30%                            
Maximum | Revolving Credit Facility | Senior Credit Facilities                              
Debt Instrument [Line Items]                              
Commitment fee on unused capacity (percent) 0.50%                            
Base Rate                              
Debt Instrument [Line Items]                              
Basis spread on variable rate (percent)                   0.75%          
Base Rate | Minimum | Revolving Credit Facility | Senior Credit Facilities                              
Debt Instrument [Line Items]                              
Basis spread on variable rate (percent) 0.50% 0.50%                          
Base Rate | Minimum | Term Loan | Senior Credit Facilities                              
Debt Instrument [Line Items]                              
Basis spread on variable rate (percent)                   1.75%          
Base Rate | Maximum | Revolving Credit Facility | Senior Credit Facilities                              
Debt Instrument [Line Items]                              
Basis spread on variable rate (percent) 1.25% 0.75%                          
Eurocurrency                              
Debt Instrument [Line Items]                              
Basis spread on variable rate (percent)                   1.75%          
Eurocurrency | Minimum | Revolving Credit Facility | Senior Credit Facilities                              
Debt Instrument [Line Items]                              
Basis spread on variable rate (percent) 1.50% 1.50%                          
Eurocurrency | Minimum | Term Loan | Senior Credit Facilities                              
Debt Instrument [Line Items]                              
Basis spread on variable rate (percent)     0.75%             0.75%          
Eurocurrency | Maximum | Revolving Credit Facility | Senior Credit Facilities                              
Debt Instrument [Line Items]                              
Basis spread on variable rate (percent) 2.25% 1.75%                          
Interest rate swaps                              
Debt Instrument [Line Items]                              
Derivative, notional amount     $ 500,000,000                        
Interest rate caps                              
Debt Instrument [Line Items]                              
Derivative, notional amount               $ 800,000,000   $ 800,000,000          
Interest rate cap agreement, threshold for interest rate protection (percent)               1.00%   1.00%          
Interest rate caps | June 30, 2020                              
Debt Instrument [Line Items]                              
Derivative, notional amount               $ 300,000,000   $ 300,000,000          
Interest rate caps | October 29, 2021                              
Debt Instrument [Line Items]                              
Derivative, notional amount               $ 500,000,000   $ 500,000,000