Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2012

Summary Of Fair Value Of Financial Assets And Liabilities Measured At Recurring Basis And Valuation Techniques


	March 31, 2012
	Total		Level 1		Level 2		Level 3		Valuation Techniques
Assets:
Money market funds	$	104,249	$	104,249	$	—	$	—		(a	)
U.S. treasury securities		9,496		9,496		—		—		(a	)
U.S. agency securities		3,532		3,532		—		—		(a	)
Corporate notes/bonds		47,612		—		47,612		—		(a	)
Certificates/term deposits		3,042		—		3,042		—		(a	)
Derivative assets ⁽¹⁾		1,392		—		1,392		—		(a	)

Total	$	169,323	$	117,277	$	52,046	$	—

Liabilities:
Derivative liabilities ⁽¹⁾	$	236	$	—	$	236	$	—		(a	)
Contingent consideration		2,755		—		—		2,755		(b	)

Total	$	2,991	$	—	$	236	$	2,755


	December 31, 2011
	Total		Level 1		Level 2		Level 3		Valuation Techniques
Assets:
Money market funds	$	65,811	$	65,811	$	—	$	—		(a	)
U.S. treasury securities		6,921		3,499		3,422		—		(a	)
U.S. agency securities		5,551		3,545		2,006		—		(a	)
Corporate notes/bonds		47,528		—		47,528		—		(a	)
Certificates/term deposits		2,922		—		2,922		—		(a	)
Derivative assets ⁽¹⁾		2,863		—		2,863		—		(a	)

Total	$	131,596	$	72,855	$	58,741	$	—

Liabilities:
Derivative liabilities ⁽¹⁾	$	300	$	—	$	300	$	—		(a	)
Contingent consideration		3,782		—		—		3,782		(b	)

Total	$	4,082	$	—	$	300	$	3,782

(1)	See Note 15 – Derivative Instruments for details.

Summary Of Liabilities Measured At Fair Value On Recurring Basis Using Significant Unobservable Inputs (Level 3)


	Three Months Ended March 31
	2012			2011
Total, beginning of the period	$	3,782		$	8,515
Contingent consideration		—			3,300
Change in fair value of contingent consideration		(27	)		—
Payment of contingent consideration		(1,000	)		(2,088	)

Total, end of the period	$	2,755		$	9,727

Summary Of Book Value And Fair Value Of Current And Long-Term Portion Of Loans Payable


	Book Value		Fair Value ⁽¹⁾
Current portion of loans payable	$	71,614	$	71,614
Long-term portion of loans payable		32,528		32,528

	$	104,142	$	104,142

(1)	Estimated fair value of long-term debt is measured using the income approach. This fair value measurement is based on similar grade US Treasury security re-priced at March 31, 2012 plus contractual spread and thus represents Level 2 inputs under the fair value hierarchy.

- Definition

Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).

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- Definition

Tabular disclosure of the fair value measurement of liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and gains or losses recognized in other comprehensive income and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issuances, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs) by class of liability.

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