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Fair Value Measurements
9 Months Ended
Sep. 30, 2012
Fair Value Measurements [Abstract]  
Fair Value Measurements

(5) Fair Value Measurements

The carrying values of cash and cash equivalents, accounts receivable, accounts payable and accrued expenses approximate the fair values of these instruments due to their short-term nature. The carrying amount for borrowings under the revolving credit facility approximates fair value because of the variable market interest rate charged to the Company for these borrowings. The carrying values of certain assets subject to long-lived asset impairment are measured at fair value subsequent to their initial recognition.