BORROWING ARRANGEMENTS	6 Months Ended
BORROWING ARRANGEMENTS	Jun. 30, 2014
Debt Disclosure [Abstract]
BORROWING ARRANGEMENTS	BORROWING ARRANGEMENTS Senior Secured Revolving Credit Facility On December 6, 2013, the Company entered into a five-year $300.0 million, senior secured revolving credit facility (the “Facility”), the terms of which are set forth in a Credit Agreement (the “Credit Agreement”) among the Company, a group of lenders led by Morgan Stanley Senior Funding, Inc., as administrative agent, and Union Bank N.A., BNP Paribas and SunTrust Bank as co-syndication agents. The Company may increase the aggregate availability under the Facility through a customary “accordion” feature in an amount not to exceed $250.0 million. The Company recorded debt issuance costs of $2.1 million in December 2013, which are being amortized over the expected five-year term of the Facility. Borrowings under the Facility will be available for general corporate purposes, including working capital, stock repurchases, acquisitions and other purposes. Amounts outstanding under the Facility are due on the earlier of December 6, 2018 or 180 days prior to the maturity date of any Permitted Convertible Notes (as defined in the Credit Agreement) if, in the latter case, the Company does not otherwise have available sufficient unrestricted cash and other investments to redeem the Permitted Convertible Notes. The Company may prepay loans under the Credit Agreement at any time, in whole or in part, upon payment of accrued interest and break funding payments, if applicable. The Company may terminate or reduce the Facility at any time without penalty. The obligations under the Facility are guaranteed by certain domestic subsidiaries of the Company, are secured by a pledge of substantially all of the assets of the Company and the guarantors, and contains affirmative, negative and financial covenants. Affirmative covenants include, among other things, the delivery of financial statements and other information. Negative covenants include, among other things, limitations on asset sales, mergers and acquisitions, indebtedness, liens, investments and transactions with affiliates. The financial covenants require the Company to maintain compliance with a maximum total leverage ratio, a maximum senior secured leverage ratio and a minimum fixed charge coverage ratio. The Credit Agreement includes customary events of default that include, among other things, non-payment defaults, inaccuracy of representations and warranties, covenant defaults, cross default to material indebtedness, bankruptcy and insolvency defaults, material judgment defaults, ERISA defaults and a change of control default. The occurrence of an event of default could result in an acceleration of obligations under the Credit Agreement. As of June 30, 2014, there were no outstanding borrowings under the Facility. See Note 16 of Notes to Condensed Consolidated Financial Statements for information regarding the subsequent events related to the Facility.

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

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