|
Segment Reporting (Restated) - Sales, Attributed to Area to Which Product was Shipped (Detail) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Aug. 31, 2012
|
Aug. 31, 2011
|
Aug. 31, 2010
|
|
| Sales Concentration [Line Items] | |||
| Sales | $ 433,151 | $ 373,763 | $ 294,517 |
|
United States [Member]
|
|||
| Sales Concentration [Line Items] | |||
| Sales | 400,070 | 346,893 | 271,285 |
|
Canada [Member]
|
|||
| Sales Concentration [Line Items] | |||
| Sales | 5,653 | 4,027 | 3,738 |
|
Mexico [Member]
|
|||
| Sales Concentration [Line Items] | |||
| Sales | 12,761 | 9,221 | 6,996 |
|
Columbia [Member]
|
|||
| Sales Concentration [Line Items] | |||
| Sales | 6,678 | 6,802 | 6,227 |
|
Japan [Member]
|
|||
| Sales Concentration [Line Items] | |||
| Sales | 4,380 | 3,434 | 1,173 |
|
Other Country [Member]
|
|||
| Sales Concentration [Line Items] | |||
| Sales | 3,609 | 3,386 | 5,098 |
|
Non-United States [Member]
|
|||
| Sales Concentration [Line Items] | |||
| Sales | $ 33,081 | $ 26,870 | $ 23,232 |