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Fair Value of Financial Instruments
9 Months Ended
Sep. 30, 2011
Fair Value of Financial Instruments [Abstract] 
Fair Value of Financial Instruments
(8)
Fair Value of Financial Instruments:  The fair values of cash and cash equivalents, receivables and short-term borrowings approximate their carrying values due to the short-term nature of the instruments. The carrying amount and fair value of the Company's long-term debt at September 30, 2011 was $570 million and $615 million, respectively, and $522 million and $546 million at December 31, 2010, respectively. The fair value of long-term debt is calculated based upon interest rates available for debt with terms and maturities similar to the Company's existing debt arrangements.