STOCKHOLDERS' EQUITY AND EQUITY COMPENSATION (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2010
Common Stock, Dividends, Per Share, Cash Paid (in Dollars per share)	$ 0.08
Share-based Compensation Arrangement by Share-based Payment Award, Description	Options granted under the Incentive Plan may be either "incentive stock options" or nonqualified stock options, generally expire ten years after the date of grant and are granted at an exercise price of not less than 100% of the fair market value at the date of grant.
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in Shares)	6,174,922
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in Shares)	1,802,159
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value		$ 270	$ 585
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Share-based Awards Other than Options	15,100
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition	1 year 109 days
Share-based Compensation	10,439	8,956	5,778
Stock Repurchase Program, Authorized Amount		50,000
Common Stock Authorized For Repurchase Under Existing Buyback Program (in Shares)		1,366,000
Stock Repurchased Shares Total (in Shares)	1,187,066	1,531,379
Stock Repurchased Value Total	10,379	12,367
Stock Repurchased During Period Per Share (in Dollars per share)	$ 8.74	$ 8.08
Stock Repurchase Program, Remaining Authorized Repurchase Amount	$ 38,312	$ 48,690
Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in Shares)	3,000,000
Incentive Stock Options [Member]
Stock Issued During Period, Shares, New Issues (in Shares)	600,000