Fair Value Measurements (Tables)

9 Months Ended

Sep. 29, 2013

The following table presents the Company’s hierarchy for assets and liabilities measured at fair value on a recurring basis as of September 29, 2013 and December 30, 2012 (in thousands):



	September 29, 2013								December 30, 2012
	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Assets:
Money market funds (cash equivalents)	$	499,128	$	—	$	—	$	499,128	$	252,126	$	—	$	—	$	252,126
Debt securities in government-sponsored entities	—		71,343		—		71,343		—		314,873		—		314,873
Corporate debt securities	—		234,663		—		234,663		—		472,861		—		472,861
U.S. Treasury securities	30,149		—		—		30,149		128,489		—		—		128,489
Deferred compensation plan assets	—		17,057		—		17,057		—		13,626		—		13,626
Total assets measured at fair value	$	529,277	$	323,063	$	—	$	852,340	$	380,615	$	801,360	$	—	$	1,181,975
Liabilities:
Acquisition related contingent consideration liabilities	$	—	$	—	$	57,232	$	57,232	$	—	$	—	$	12,519	$	12,519
Deferred compensation liability	—		14,902		—		14,902		—		12,071		—		12,071
Total liabilities measured at fair value	$	—	$	14,902	$	57,232	$	72,134	$	—	$	12,071	$	12,519	$	24,590

Changes in estimated fair value of contingent consideration liabilities

Changes in estimated fair value of contingent consideration liabilities during the nine months ended September 29, 2013 are as follows (in thousands):



	Contingent Consideration Liability (Level 3 Measurement)
Balance as of December 30, 2012	$	12,519
Additional liability recorded as a result of current period acquisitions	60,183
Change in estimated fair value, recorded in acquisition related (gain) expense, net	(11,031		)
Cash settlements	(4,439		)
Balance as of September 29, 2013	$	57,232

- 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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