CAPITAL STOCK (Details) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended							0 Months Ended
	Dec. 31, 2013	Dec. 31, 2011	Dec. 31, 2008	Dec. 31, 2007	Dec. 31, 2013 Non-employee Director [Member]	Dec. 31, 2013 Restricted Stock Units (RSUs) [Member]	Dec. 31, 2013 Employee Stock Purchase Plan [Member]	Jan. 06, 2014 Rights [Member]	Jan. 06, 2014 Rights [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Preferred stock authorized (in shares)	1,000,000
Par value per share of preferred stock (in dollars per share)	$ 0.01								$ 0.01
Shares Issued, Price Per Share									$ 40.00
Rights Agreement Distribution Date Number of Days								10 days
Common Stock Beneficial Ownership Percentage									15.00%
Rights Agreement Distribution Date, Number of Days Following Tender or Exchange Offer								10 days
Common Stock Beneficial Ownership Percentage Exemption									15.00%
Additional Ownership of Common Stock Required									1.00%
Common Stock, Par or Stated Value Per Share									$ 0.01
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right									0.0001
Stock Repurchase Program, Authorized Amount			$ 100	$ 100
Authorized amount remaining for future stock repurchases	80.3
Shares tendered for tax withholding for share-based compensation (in shares)	0	9,802
Adjustments related to tax withholding for share based compensation	$ 0.1
Stock Incentive Plans [Abstract]
Vesting period, maximum (in years)					1 year
Shares available for issuance	3,333,219					523,233	441,913