FAIR VALUE (Tables)

9 Months Ended

Sep. 30, 2013

Summary of fair value hierarchy for its financial assets and liabilities measured at fair value on a recurring basis

The following table represents the Company's fair value hierarchy for its financial assets (cash, cash equivalents and investments) and liabilities measured at fair value on a recurring basis as of September 30, 2013 (in thousands):



	Level 1		Level 2		Level 3		Total
Assets:
Cash	$	136,909	$	—	$	—	$	136,909
Money market funds	32,338		—		—		32,338
Commercial paper	53,691		—		—		53,691
Auction rate securities	—		—		21,675		21,675
Total assets measured at fair value	$	222,938	$	—	$	21,675	$	244,613
Liabilities:
Deferred consideration	$	—	$	—	$	1,208	$	1,208
Total liabilities measured at fair value	$	—	$	—	$	1,208	$	1,208



	Level 1		Level 2		Level 3		Total
Assets:
Cash	$	135,232	$	—	$	—	$	135,232
Money market funds	20,775		—		—		20,775
Commercial paper	20		—		—		20
Government-sponsored enterprise obligations	—		37		—		37
Auction rate securities	—		—		21,662		21,662
Total assets measured at fair value	$	156,027	$	37	$	21,662	$	177,726
Liabilities:
Deferred consideration	$	—	$	—	$	2,304	$	2,304
Total liabilities measured at fair value	$	—	$	—	$	2,304	$	2,304

Summary of changes in the fair value of the company's level 3 assets

The following tables summarize changes in fair value of the Company’s Level 3 assets for the three and nine months ended September 30, 2013 and 2012 (in thousands):



	Three Months Ended September 30,					Nine Months Ended September 30,
	2013		2012			2013			2012
Balance at beginning of period	$	21,675	$	24,976		$	21,662		$	24,584
Auction rate securities upon acquisition	—		—			—			442
Change in unrealized gain included in accumulated other comprehensive loss	—		735			63			735
Settlements	—		(4,150		)	(50		)	(4,200		)
Balance at end of period	$	21,675	$	21,561		$	21,675		$	21,561


5.	FAIR VALUE — (CONTINUED)

The following table summarizes changes in fair value of the Company’s Level 3 assets from December 31, 2007 to September 30, 2013 (in thousands):



	Auction Rate Securities
Balance at December 31, 2007	$	53,975
Change in unrealized loss included in accumulated other comprehensive loss	(3,710		)
Settlements	(20,925		)
Balance at December 31, 2008	29,340
Change in unrealized gain included in accumulated other comprehensive loss	684
Settlements	(300		)
Balance at December 31, 2009	29,724
Change in unrealized gain included in accumulated other comprehensive loss	40
Settlements	(575		)
Balance at December 31, 2010	29,189
Change in unrealized gain included in accumulated other comprehensive loss	245
Settlements	(4,850		)
Balance at December 31, 2011	24,584
Auction rate securities upon acquisition	442
Change in unrealized gain included in accumulated other comprehensive loss	836
Settlements	(4,200		)
Balance at December 31, 2012	21,662
Change in unrealized gain included in accumulated other comprehensive loss	63
Settlements	(50		)
Balance at September 30, 2013	$	21,675

Summary of changes in the fair value of the company's level 3 liabilities

The following tables summarize changes in fair value of the Company’s Level 3 liabilities for the three and nine months ended September 30, 2013 and 2012 (in thousands):



	Three Months Ended September 30,				Nine Months Ended September 30,
	2013		2012		2013			2012
Balance at beginning of period	$	1,146	$	2,072	$	2,304		$	—
Deferred consideration upon acquisition	—		—		—			2,011
Accretion for period	62		113		248			174
Payments made during period	—		—		(1,344		)	—
Balance at end of period	$	1,208	$	2,185	$	1,208		$	2,185

The following table summarizes changes in fair value of the Company’s Level 3 liabilities from December 31, 2011 to September 30, 2013 (in thousands):



	Deferred Consideration
Balance at December 31, 2011	$	—
Deferred consideration upon acquisition	2,011
Accretion for 2012	293
Balance at December 31, 2012	2,304
Accretion from January 1, 2013 – September 30, 2013	248
Payments made from January 1, 2013 – September 30, 2013	(1,344		)
Balance at September 30, 2013	$	1,208

- Definition

Tabular disclosure of the fair value measurement of assets 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 (loss), 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, issues, 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 asset.

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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 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 (loss) 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, issues, 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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