Credit Facilities	12 Months Ended
Credit Facilities	Dec. 31, 2012
Debt Disclosure [Abstract]
Credit Facilities	CREDIT FACILITIES As of December 31, 2012, the Company maintained a $25.0 million line of credit with Bank of America. The loan agreement, which was to expire on February 14, 2013, was amended on January 11, 2013, at which time the line was reduced to $10.0 million. The January 11, 2013 agreement also amended the expiration date to be June 12, 2013, at which time any outstanding amounts borrowed under the agreement are then due and payable. Borrowings under this line of credit are available for investment opportunities, working capital, and the issuance of letters of credit. The annual interest rate on outstanding amounts is equal to a floating rate of 1-month LIBOR Daily Floating Rate plus 1.85%. The unused commitment fee is equal to 0.25%. The terms of the line of credit require the Company to be in compliance with certain financial and other covenants, with which the Company was compliant as of December 31, 2012. The Company had no outstanding borrowings under this line of credit as of December 31, 2012 or 2011, but had outstanding letters of credit as of such dates of $1.6 million and $2.6 million, respectively.

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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