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Financial Instruments
9 Months Ended
Sep. 30, 2011
Financial Instruments [Abstract] 
Financial Instruments
15. Financial Instruments

The fair values of accounts receivable and accounts payable approximate their carrying values due to their short-term nature. The Company accounts for its $5.2 million investment in TRA’s preferred stock using the cost method of accounting. TRA is closely held and there is not an efficient market in which buyers and sellers determine the fair value of these shares. The Company periodically assesses the fair value of its investment in TRA through comparative analysis and analysis of TRA’s actual and projected financial results. As of September 30, 2011, the Company believes that the fair value of the TRA investment approximates the carrying value of $5.2 million. In the event the fair value of the investment in TRA were to fall below its carrying value in the future, the Company would be required to recognize an impairment loss.

Due to the floating rate nature of the Company’s revolving obligation under its Credit Facility, the carrying amount of $53.0 million in outstanding borrowings as of December 31, 2010, approximates its fair value.