Debt Security, Held To Maturity	12 Months Ended
Debt Security, Held To Maturity	Dec. 31, 2011
Debt Security, Held To Maturity [Abstract]
Debt Security, Held To Maturity	5. Debt Security, Held to Maturity The Company owns a $15,000 debt security from a repurchase lending counterparty that matures October 31, 2016. The debt security pays interest quarterly at the rate of 4.0% above the three-month LIBOR rate. The Company estimates the fair value of this note to be approximately $13,811 which was determined by present valuing the projected future cash flows using a discount rate from a similar issuer.

Tabular disclosure of all investments in certain debt and equity securities for which the entity has the positive intent and ability to hold until maturity.

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