Fair Value Measurement

6 Months Ended

Jun. 30, 2011

Fair Value Measurement [Abstract]

Fair Value Measurement

4. Fair Value Measurement

Fair value is the price that would be received from selling an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Fair value is estimated by applying the following hierarchy, which prioritizes the inputs used to measure fair value into three levels and bases the categorization within the hierarchy upon the lowest level of input that is available and significant to the fair value measurement:

Level 1 — Unadjusted quoted prices in active markets for identical assets and liabilities.

Level 2 — Observable inputs other than those included in Level 1. For example, quoted prices for similar assets or liabilities in active markets or quoted prices for identical assets or liabilities in inactive markets.

Level 3 — Unobservable inputs reflecting management’s own assumptions about the inputs used in pricing the asset or liability.

Our financial instruments consist of cash, accounts receivable, accounts payable, accrued liabilities and revolving credit facility. The carrying value of these instruments approximates fair value as a result of the short duration of such instruments or due to the variability of interest cost associated with such instruments.

The carrying amounts and fair values of our long-term debt obligations are as follows (in thousands):

	June 30, 2011				December 31, 2010
	Carrying				Carrying
	Amount		Fair Value		Amount		Fair Value
Long-term debt	$	250,000	$	250,000	$	164,987	$	159,376

The fair value of long-term debt obligations is based on quoted market prices or on rates available on debt with similar terms and maturities. Based on these inputs, our long-term debt is classified as Level 2.