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CASH DIVIDENDS - Additional Information (Detail) (USD $)
In Millions, except Per Share data
1 Months Ended3 Months Ended9 Months Ended
Aug. 03, 2011
May 04, 2011
Feb. 22, 2011
Sep. 30, 2011
Sep. 30, 2010
Sep. 30, 2011
Sep. 30, 2010
Dividends Payable [Line Items]       
Date of declaration of dividendsMay 04, 2011Feb. 22, 2011
Dividend declared$ 1.8$ 1.8$ 2.3    
Dividend declared per share$ 0.04$ 0.04$ 0.05$ 0.04$ 0.05$ 0.13$ 0.22
Recorded date of issued and outstanding sharesAug. 16, 2011May 18, 2011Mar. 15, 2011
Dividend payment dateAug. 25, 2011May 25, 2011Mar. 24, 2011