Face amount or stated value per share of common stock.

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Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.

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The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws.

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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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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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Amount of stock repurchase plan authorized.

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Amount remaining of a stock repurchase plan authorized.

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CAPITAL STOCK (Details) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Nov. 30, 2014	Feb. 29, 2008	Apr. 30, 2007
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Preferred stock authorized (in shares)	1,000,000us-gaap_PreferredStockSharesAuthorized
Par value per share of preferred stock (in dollars per share)	$ 0.01
Common Stock, Par or Stated Value Per Share		$ 0.01
Stock Repurchase Program, Authorized Amount			$ 100	$ 100
Stock repurchased (in shares)	0
Authorized amount remaining for future stock repurchases	$ 80.3
Stock Incentive Plans [Abstract]
Shares available for issuance	3,267,184
Non-employee Director [Member]
Stock Incentive Plans [Abstract]
Vesting period, maximum (in years)	1 year
Employee Stock Purchase Plan [Member]
Stock Incentive Plans [Abstract]
Shares available for issuance	441,913