Guarantor Subsidiaries - Additional Information (Details) - 5.625% Senior Notes - Senior Notes - USD ($) |
May 31, 2016 |
Aug. 31, 2015 |
Apr. 16, 2012 |
|---|---|---|---|
| Guarantor Obligations [Line Items] | |||
| Debt Instrument, Face Amount | $ 300,000,000 | ||
| Senior Notes, Noncurrent | $ 288,059,000 | $ 288,059,000 | |
| Debt instrument, interest rate | 5.625% |
| X | ||||||||||
- Definition Face (par) amount of debt instrument at time of issuance. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Contractual interest rate for funds borrowed, under the debt agreement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition Carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion. Senior note holders are paid off in full before any payments are made to junior note holders. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|