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Fair Value of Financial Instruments
9 Months Ended
Sep. 30, 2012
Fair Value of Financial Instruments

Note I—Fair Value of Financial Instruments

The carrying amounts reflected in the condensed consolidated balance sheets for cash and cash equivalents, trade accounts receivable and trade accounts payable approximate their respective fair values based on the short-term nature of these instruments. At September 30, 2012, the fair value of fixed rate debt was approximately $518.2 million. The fair value of fixed rate debt is designated as Level 2 in the fair value hierarchy (i.e., significant observable inputs) and is based primarily on the discounted value of future cash flows using current market interest rates offered for debt of similar credit risk and maturity.