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SHAREHOLDERS' EQUITY - Additional Information (Detail) In Millions	6 Months Ended
	Jun. 30, 2011
Stockholders Equity Note [Line Items]
Common stock, shares repurchased	4.1
Share Repurchase Authorization 2008
Stockholders Equity Note [Line Items]
Remaining common stock available for purchase under share repurchase authorizations	26.3

Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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