Debt and Borrowing Arrangements	12 Months Ended
Debt and Borrowing Arrangements	Dec. 31, 2013
Debt and Borrowing Arrangements
Debt and Borrowing Arrangements	8. Debt and Borrowing Arrangements On December 21, 2011, the Company entered into a five-year syndicated credit agreement (the "Credit Agreement") for an initial facility of $175.0 million. The entire facility is available for revolving loans and the issuance of letters of credit and up to $25.0 million of the facility is available for swingline loans. The Company has the option to increase the commitments under the Credit Agreement or enter into incremental term loans, subject to certain conditions, by up to an additional $75.0 million upon receipt of additional commitments from new or existing lenders. Revolving loans under the Credit Agreement bear interest, at the Company's option, at either (1) the ABR, which is the greatest of the Prime Rate, the Federal Funds Effective Rate plus 0.50% or LIBOR plus 1.00%, plus in each case an applicable margin ranging from 0.00% to 1.00%; or (2) LIBOR plus an applicable margin ranging from 1.00% to 2.00%. The applicable margin is determined based on the Company's leverage ratio. Letters of credit issued under the Credit Agreement are subject to a letter of credit fee of 1.00% to 2.00%, based on the Company's leverage ratio and a facing fee of 0.125%. Swingline loans bear interest at the ABR rate. The Company is currently required to pay a 0.2% commitment fee on the unused portion of the credit facility. Subject to certain exceptions, the Credit Agreement is secured by substantially all of the assets of the Company and its subsidiaries and by a pledge of all of the capital stock of the Company's subsidiaries. The Company's subsidiaries also guarantee the repayment of all amounts due under the Credit Agreement. The Credit Agreement provides for customary events of default. If an event of default occurs and is continuing, on the terms and subject to the conditions set forth in the Credit Agreement, amounts outstanding under the Credit Agreement may be accelerated and may become or be declared immediately due and payable. Under the Credit Agreement, the Company is subject to certain financial covenants and must maintain a maximum leveraged debt ratio of 3.0 and a minimum interest coverage ratio of 3.0. The Company was in compliance with the financial covenants at December 31, 2013, as well as in all previous quarters. The Credit Agreement also contains a number of covenants including limitations on asset sales, investments, indebtedness and liens. The Company had no revolving loans outstanding under the credit agreement as of December 31, 2013 and 2012. As of December 31, 2013 and 2012, the Company had approximately $18.4 million and $19.7 million, respectively, in irrevocable standby letters of credit outstanding under the facility at an interest rate of 1.125%. The Company had $156.6 million available for borrowing under the Credit Agreement as of December 31, 2013.

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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