Debt - Additional Information (Detail) (USD $)
|
3 Months Ended | 3 Months Ended | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Nov. 30, 2013
|
Nov. 30, 2013
Minimum
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Nov. 30, 2013
Maximum
|
Nov. 30, 2013
Libor Rate
|
Nov. 30, 2013
Libor Rate
Minimum
|
Nov. 30, 2013
Libor Rate
Maximum
|
Nov. 30, 2013
Base Rate
Minimum
|
Nov. 30, 2013
Base Rate
Maximum
|
Nov. 30, 2013
Revolving Credit Facility
|
Nov. 30, 2013
Senior Credit Facility - Term Loan
|
Nov. 30, 2013
Senior Credit Facility - Term Loan
Starting on September 30, 2014
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Nov. 30, 2013
Senior Credit Facility - Term Loan
starting on September 30, 2015
|
Nov. 30, 2013
Line of Credit
Senior Credit Facility - Revolver
|
Nov. 30, 2013
Senior Notes
5.625% Senior Notes
|
Apr. 16, 2012
Senior Notes
5.625% Senior Notes
|
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Debt Instrument [Line Items] | |||||||||||||||
Maximum borrowing capacity | $ 600,000,000 | $ 90,000,000 | |||||||||||||
Senior credit facility expansion option, available | 350,000,000 | ||||||||||||||
Debt instrument, interest rate over variable rate | 1.50% | 1.00% | 2.50% | 0.00% | 1.50% | ||||||||||
Debt Instrument, actual interest rate | 1.70% | ||||||||||||||
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage | 0.15% | 0.40% | |||||||||||||
Unused credit line | 483,000,000 | ||||||||||||||
Quarterly installments, payable on term loan | 1,100,000 | 2,300,000 | |||||||||||||
Leverage ratio | 3.75 | ||||||||||||||
Interest coverage ratio | 350.00% | ||||||||||||||
Senior Notes | $ 300,000,000 | ||||||||||||||
Debt instrument, interest rate | 5.625% | 5.625% |