Annual report pursuant to Section 13 and 15(d)

Debt - Additional Information (Detail)

v3.5.0.2
Debt - Additional Information (Detail)
$ in Thousands
3 Months Ended 12 Months Ended
Jun. 30, 2017
USD ($)
Jun. 30, 2016
USD ($)
Aug. 31, 2016
USD ($)
Aug. 31, 2016
USD ($)
covenant
Aug. 31, 2015
USD ($)
Aug. 31, 2014
USD ($)
Jul. 19, 2015
USD ($)
Jun. 19, 2015
USD ($)
Apr. 16, 2012
USD ($)
Debt Instrument [Line Items]                  
Long-term Debt     $ 584,309 $ 584,309 $ 588,059        
Cash interest payments       27,200 24,800 $ 21,000      
Long-term Debt, Current Maturities     (18,750) (18,750) (3,750)        
Long-term Debt, Excluding Current Maturities     565,559 565,559 584,309        
Senior Credit Facility                  
Debt Instrument [Line Items]                  
Long-term Debt     296,250 296,250 300,000        
Senior Credit Facility - Revolver | Senior Credit Facility                  
Debt Instrument [Line Items]                  
Long-term Debt     0 0 0        
Senior Credit Facility - Term Loan | Senior Credit Facility                  
Debt Instrument [Line Items]                  
Long-term Debt     $ 296,250 $ 296,250 300,000        
5.625% Senior Notes | Senior Notes                  
Debt Instrument [Line Items]                  
Debt Instrument, Maturity Date       Jun. 15, 2022          
Face amount                 $ 300,000
Debt instrument, interest rate     5.625% 5.625%   5.625%     5.625%
5.625% Senior Notes Carrying Value     $ 288,059 $ 288,059 $ 288,059        
Minimum | 5.625% Senior Notes | Senior Notes                  
Debt Instrument [Line Items]                  
Debt Redemption Price As Percentage Of Principal                 100.00%
Maximum                  
Debt Instrument [Line Items]                  
Leverage ratio     3.75 3.75          
Maximum | 5.625% Senior Notes | Senior Notes                  
Debt Instrument [Line Items]                  
Debt Redemption Price As Percentage Of Principal                 102.80%
Debt Instrument, Repurchase Amount Available               $ 165,000  
Debt Instrument, Repurchase Amount             $ 11,900    
Senior Credit Facility                  
Debt Instrument [Line Items]                  
Senior credit facility expansion option, available     $ 450,000 $ 450,000          
Number of financial covenants | covenant       2          
Senior Credit Facility | Minimum                  
Debt Instrument [Line Items]                  
Fixed charge coverage ratio     3.50 3.50          
Senior Credit Facility | LIBOR                  
Debt Instrument [Line Items]                  
Debt instrument interest rate over variable rate       2.00%          
Debt instrument actual interest rate     2.50% 2.50%          
Senior Credit Facility | LIBOR | Minimum                  
Debt Instrument [Line Items]                  
Debt instrument interest rate over variable rate       1.00%          
Senior Credit Facility | LIBOR | Maximum                  
Debt Instrument [Line Items]                  
Debt instrument interest rate over variable rate       2.25%          
Senior Credit Facility | Base Rate | Minimum                  
Debt Instrument [Line Items]                  
Debt instrument interest rate over variable rate       0.00%          
Senior Credit Facility | Base Rate | Maximum                  
Debt Instrument [Line Items]                  
Debt instrument interest rate over variable rate       1.25%          
Senior Credit Facility - Term Loan                  
Debt Instrument [Line Items]                  
Maximum borrowing capacity     $ 300,000 $ 300,000          
Senior Credit Facility - Revolver                  
Debt Instrument [Line Items]                  
Maximum borrowing capacity     600,000 600,000          
Unused credit line     592,100 592,100          
Unused Borrowing Capacity Available for Borrowing     $ 180,000 $ 180,000          
Senior Credit Facility - Revolver | Minimum                  
Debt Instrument [Line Items]                  
Percentage of non-use fee, annually     0.15%            
Senior Credit Facility - Revolver | Maximum                  
Debt Instrument [Line Items]                  
Percentage of non-use fee, annually     0.35%            
Scenario, Forecast | Senior Credit Facility - Term Loan | Starting on June 30, 2016                  
Debt Instrument [Line Items]                  
Quarterly installments, payable on term loan   $ 3,800              
Scenario, Forecast | Senior Credit Facility - Term Loan | Starting on June 30, 2017                  
Debt Instrument [Line Items]                  
Quarterly installments, payable on term loan $ 7,500