Fair Value of Financial Instruments (Tables)

6 Months Ended

Jun. 28, 2014

Fair Value Disclosures [Abstract]

Schedule Of Fair Value Assets And Liabilities Measured On Recurring Basis Table

Assets and liabilities measured and recorded at fair value on a recurring basis at June 28, 2014 are as follows:
	Carrying Amount		Total Fair Value
					Cash		Level 1		Level 2		Level 3
Measured on a recurring basis:
Assets:
Cash	$	93,566	$	93,566	$	93,566	$	—	$	—	$	—
Cash equivalents	120,932		120,932		—		111,934		8,998		—
Short-term—marketable securities	8,979		8,979		—		—		8,979		—
Long-term—marketable securities	1,014		1,014		—		—		1,014
Non-qualified deferred compensation plan	6,875		6,875		—		6,875		—		—
Total	$	231,366	$	231,366	$	93,566	$	118,809	$	18,991	$	—
Liabilities:
Earnout and milestone payment liability	2,066		2,066		—		—		—		2,066
Non-qualified deferred compensation plan	6,875		6,875		—		6,875		—		—
Total	$	8,941	$	8,941	$	—	$	6,875	$	—	$	2,066
Assets and liabilities measured and recorded at fair value on a recurring basis at December 31, 2013 are as follows:
	Carrying Amount		Total Fair Value
					Cash		Level 1		Level 2		Level 3
Measured on a recurring basis:
Assets:
Cash	$	53,122	$	53,122	$	53,122	$	—	$	—	$	—
Cash equivalents	25,904		25,904		—		25,904		—		—
Non-qualified deferred compensation plan	6,571		6,571		—		6,571		—		—
Total	$	85,597	$	85,597	$	53,122	$	32,475	$	—	$	—
Liabilities:
Earnout and milestone payment liability	$	2,426	$	2,426	$	—	$	—	$	—	$	2,426
Non-qualified deferred compensation plan	6,571		6,571		—		6,571		—		—
Total	$	8,997	$	8,997	$	—	$	6,571	$	—	$	2,426

Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation

Ending earnout and milestone payment liability at December 31, 2013	$	2,426
Accretion	445
Change in estimate	(279		)
Payments	(526		)
Ending earnout and milestone payment liability at June 28, 2014	$	2,066