|
Consolidated Statement of Stockholders' Equity (Details) (USD $)
In Thousands, unless otherwise specified
|
3 Months Ended |
6 Months Ended |
|
|
Feb. 28, 2014
|
Feb. 28, 2013
|
Feb. 28, 2014
|
Feb. 28, 2013
|
Aug. 31, 2013
|
| Comprehensive income (loss) |
$ 11,608 |
$ 13,505 |
$ 38,881 |
$ 34,897 |
|
| Cash dividends paid, $0.40 per share |
|
|
(11,777) |
|
|
| Purchase of treasury stock |
|
|
(1,116) |
|
|
| Issuance of treasury stock |
|
|
154 |
|
|
| Stock options exercised |
|
|
122 |
|
|
| Restricted Stock Issued, Net of Forfeitures |
|
|
0 |
|
|
| Redemption of common stock to cover tax withholdings |
|
|
361 |
397 |
|
| Equity impact of redemption of common stock to cover tax withholdings |
|
|
(361) |
|
|
| Amortization of restricted stock |
|
|
2,393 |
|
|
| Balance as of February 28, 2014 |
543,040 |
|
543,040 |
|
514,744 |
|
Common Stock [Member]
|
|
|
|
|
|
| Stock options exercised |
|
|
7 |
|
|
| Restricted Stock Issued, Net of Forfeitures |
|
|
88 |
|
|
| Equity impact of redemption of common stock to cover tax withholdings |
|
|
(10) |
|
|
| Balance as of February 28, 2014 |
48,179 |
|
48,179 |
|
48,094 |
|
Additional Paid-in Capital [Member]
|
|
|
|
|
|
| Issuance of treasury stock |
|
|
58 |
|
|
| Stock options exercised |
|
|
115 |
|
|
| Restricted Stock Issued, Net of Forfeitures |
|
|
(88) |
|
|
| Equity impact of redemption of common stock to cover tax withholdings |
|
|
(351) |
|
|
| Amortization of restricted stock |
|
|
2,393 |
|
|
| Balance as of February 28, 2014 |
265,285 |
|
265,285 |
|
263,158 |
|
Treasury Stock [Member]
|
|
|
|
|
|
| Purchase of treasury stock |
|
|
(1,116) |
|
|
| Issuance of treasury stock |
|
|
96 |
|
|
| Balance as of February 28, 2014 |
(379,947) |
|
(379,947) |
|
(378,927) |
|
Accumulated Other Comprehensive Income (Loss) [Member]
|
|
|
|
|
|
| Comprehensive income (loss) |
|
|
16,714 |
|
|
| Balance as of February 28, 2014 |
17,396 |
|
17,396 |
|
682 |
|
Retained Earnings [Member]
|
|
|
|
|
|
| Comprehensive income (loss) |
|
|
21,930 |
|
|
| Cash dividends paid, $0.40 per share |
|
|
(11,777) |
|
|
| Balance as of February 28, 2014 |
584,523 |
|
584,523 |
|
574,370 |
|
Noncontrolling Interest [Member]
|
|
|
|
|
|
| Comprehensive income (loss) |
|
|
237 |
|
|
| Balance as of February 28, 2014 |
$ 7,604 |
|
$ 7,604 |
|
$ 7,367 |