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LONG-TERM DEBT AND LINES OF CREDIT - Narrative (Details)
3 Months Ended 12 Months Ended 14 Months Ended 26 Months Ended 50 Months Ended 59 Months Ended 71 Months Ended
Apr. 27, 2018
$ / shares
Mar. 31, 2018
USD ($)
$ / shares
Rate
Mar. 31, 2017
USD ($)
Dec. 31, 2017
USD ($)
Jun. 30, 2018
USD ($)
Jun. 30, 2019
Jun. 30, 2021
Mar. 31, 2022
USD ($)
Mar. 31, 2023
Jun. 30, 2020
Mar. 20, 2018
USD ($)
Rate
Dec. 31, 2016
USD ($)
Debt Instrument [Line Items]                        
Face amount   $ 115,829,000   $ 108,979,000                
Other restrictions on payments of dividends (USD per share) | $ / shares   $ 0.01                    
Interest expense   $ 45,500,000 $ 41,100,000                  
Secured Debt | Term Loan B-3                        
Debt Instrument [Line Items]                        
Face amount                     $ 1,140,000,000.00  
Credit facility interest rate (as a percent) | Rate   3.63%                    
Secured Debt | Term Loan A                        
Debt Instrument [Line Items]                        
Face amount   $ 1,500,000,000.0                    
Credit facility interest rate (as a percent) | Rate   3.63%                    
Secured Debt | Term Loan A-2                        
Debt Instrument [Line Items]                        
Face amount   $ 1,300,000,000.0                    
Credit facility interest rate (as a percent) | Rate   3.48%                    
Secured Debt | Revolving Credit Facility                        
Debt Instrument [Line Items]                        
Face amount   $ 1,250,000,000.00                    
Line of credit                        
Debt Instrument [Line Items]                        
Maximum borrowing capacity   740,900,000.0                    
Remaining borrowing capacity   865,100,000                    
Repayments of lines of credit   54,900,000   59,300,000                
Amount outstanding under lines of credit   $ 447,600,000   $ 635,200,000                
Weighted-average interest rate of short-term debt (as a percent)   2.81%   1.97%                
Average outstanding balance   $ 382,800,000                    
Interest rate swap                        
Debt Instrument [Line Items]                        
Accumulated other comprehensive income (loss) related to interest rate   $ 6,800,000                    
Forecast                        
Debt Instrument [Line Items]                        
Other restrictions on payments of dividends (USD per share) | $ / shares $ 0.01                      
Revolving Credit Facility | Fourth Amendment                        
Debt Instrument [Line Items]                        
Minimum interest coverage ratio   2.25                    
Revolving Credit Facility | Secured Debt                        
Debt Instrument [Line Items]                        
Effective interest rate (as a percent) | Rate   3.48%                    
Revolving Credit Facility | Forecast | Term Loan B-3                        
Debt Instrument [Line Items]                        
Rate of quarterly installment payments (as a percent)                 0.25%      
Revolving Credit Facility | Forecast | Term Loan A                        
Debt Instrument [Line Items]                        
Rate of quarterly installment payments (as a percent)           1.25% 1.875% 2.50%        
Revolving Credit Facility | Forecast | Term Loan A-2                        
Debt Instrument [Line Items]                        
Periodic payment of debt         $ 1,700,000     $ 8,600,000        
Revolving Credit Facility | Forecast | Fourth Amendment                        
Debt Instrument [Line Items]                        
Maximum leverage ratio         4.5 4.25       4.00    
Letter of Credit | Line of credit                        
Debt Instrument [Line Items]                        
Maximum borrowing capacity   $ 100,000,000                    
Standby letters of credit | Line of credit                        
Debt Instrument [Line Items]                        
Remaining borrowing capacity   $ 827,600,000                   $ 473,300,000
Minimum | Revolving Credit Facility | Fourth Amendment                        
Debt Instrument [Line Items]                        
Commitment fee rate (as a percent)   0.20%                    
Maximum | Revolving Credit Facility | Fourth Amendment                        
Debt Instrument [Line Items]                        
Commitment fee rate (as a percent)   0.30%                    
Eurocurrency | Secured Debt | Term Loan B-3                        
Debt Instrument [Line Items]                        
Credit facility interest rate (as a percent) | Rate                     1.75%  
Base Rate | Secured Debt | Term Loan B-3                        
Debt Instrument [Line Items]                        
Credit facility interest rate (as a percent) | Rate                     0.75%