Fair Value Measurement

6 Months Ended

Jun. 30, 2012

Fair Value Measurement

4. Fair Value Measurement

Accounting guidance on fair value measurements for certain financial assets and liabilities requires that assets and liabilities carried at fair value be classified and disclosed in one of the following three categories:

• Level 1—Quoted market prices in active markets for identical assets or liabilities.

• Level 2—Observable market-based inputs or unobservable inputs that are corroborated by market data.

• Level 3—Unobservable inputs reflecting the reporting entity’s own assumptions or external inputs from inactive markets.

A financial asset or liability’s classification within the hierarchy is determined based on the lowest level of input that is significant to the fair value measurement.

The following tables present information as of June 30, 2012 and December 31, 2011, about our financial assets and liabilities that are measured at fair value on a recurring basis, according to the valuation techniques we used to determine their fair values.

	Level 1		Level 2		Level 3		Total Fair Value
June 30, 2012
Contingent purchase price related to acquisitions	$	0	$	0	$	1,474	$	1,474
Total liabilities at fair value	$	0	$	0	$	1,474	$	1,474
December 31, 2011
Contingent purchase price related to acquisitions	$	0	$	0	$	13,070	$	13,070
Total liabilities at fair value	$	0	$	0	$	13,070	$	13,070

The table below sets forth a reconciliation of our beginning and ending Level 3 financial liability balance.

	Three Months Ended June 30,
	2012			2011
Balance, beginning of period	$	1,265		$	12,871
Payments of contingent purchase price		(0	)		(468	)
Total unrealized losses included in earnings		209			1,090
Balance, end of period	$	1,474		$	13,493

	Six Months Ended June 30,
	2012			2011
Balance, beginning of period	$	13,070		$	16,623
Payments of contingent purchase price		(11,613	)		(4,318	)
Total unrealized losses included in earnings		17			1,188
Balance, end of period	$	1,474		$	13,493