SHAREHOLDERS' EQUITY (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended					9 Months Ended		12 Months Ended
	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Sep. 30, 2012
SHAREHOLDERS' EQUITY (Details) [Line Items]
Common Stock, Dividends, Per Share, Cash Paid (in Dollars per share)			$ 0.025	$ 0.02				$ 0.08
Dividends Payable, Amount Per Share (in Dollars per share)	$ 0.025					$ 0.025
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, Expiration Period						10 years
Maximum Percentage of Exercise Price at Grand Date Fair Value						100.00%
Share-based Compensation (in Dollars)	$ 3,029				$ 2,691	$ 9,327	$ 7,599
Stock Repurchase Program, Authorized Amount (in Dollars)						50,000
Stock Repurchased During Period, Shares	272,698	881,998	723,630
Stock Repurchased During Period, Value (in Dollars)	3,014	10,265	7,331
Stock Repurchased During Period Per Share (in Dollars per share)	$ 11.05	$ 11.64	$ 10.13			$ 10.00
Stock Repurchased Shares Total						3,230,771
Stock Repurchased Value Total (in Dollars)						32,299
Stock Repurchase Program, Remaining Authorized Repurchase Amount (in Dollars)						17,701
Shares Paid for Tax Withholding for Share Based Compensation	53,459					432,116
Shares Paid For Tax Withholding For Share Based Compensation, Value (in Dollars)	566					5,079
Shares Paid For Tax Withholding For Share Based Compensation, Value Per Share (in Dollars per share)	$ 10.58					$ 11.75
Incentive Plan [Member]
SHAREHOLDERS' EQUITY (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	3,000,000					3,000,000
Incentive Stock Options [Member]
SHAREHOLDERS' EQUITY (Details) [Line Items]
Stock Issued During Period, Shares, New Issues						600,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	689,668					689,668
Restricted Stock [Member]
SHAREHOLDERS' EQUITY (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	43,500	278,330	883,500
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	4 years	4 years	4 years
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value (in Dollars)	$ 506	$ 3,333	$ 9,433
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in Dollars per share)	$ 11.63	$ 11.97	$ 10.68
Performance Shares [Member]
SHAREHOLDERS' EQUITY (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period		241,667	829,100
Two Thousand One Stock Option Plan [Member]
SHAREHOLDERS' EQUITY (Details) [Line Items]
Share Based Compensation Arrangement by Share Based Payment Award Equity Instruments Other Than Options Additional Grants in Future	0					0
Two Thousand Six Equity Incentive Plan [Member]
SHAREHOLDERS' EQUITY (Details) [Line Items]
Share Based Compensation Arrangement by Share Based Payment Award Equity Instruments Other Than Options Additional Grants in Future	0					0
Outside Director Stock Award Plan [Member]
SHAREHOLDERS' EQUITY (Details) [Line Items]
Share Based Compensation Arrangement by Share Based Payment Award Equity Instruments Other Than Options Additional Grants in Future	0					0