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Financial Instruments
3 Months Ended
Mar. 31, 2012
Financial Instruments [Abstract]  
Financial Instruments
17. Financial Instruments

The Company believes the fair market value of the TRA investment approximates its carrying value of $1.7 million as of March 31, 2012. The Company accounts for its $1.7 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. 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.