Fair Value of Financial Instruments (Tables)

9 Months Ended

Sep. 27, 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 September 27, 2014 are as follows:
	Carrying Amount		Total Fair Value
					Cash		Level 1		Level 2		Level 3
Measured on a recurring basis:
Assets:
Cash	$	97,133	$	97,133	$	97,133	$	—	$	—	$	—
Cash equivalents	126,479		126,479		—		117,481		8,998		—
Short-term—marketable securities	24,330		24,330		—		—		24,330		—
Non-qualified deferred compensation plan	7,149		7,149		—		7,149		—		—
Total	$	255,091	$	255,091	$	97,133	$	124,630	$	33,328	$	—
Liabilities:
Earnout and milestone payment liability	1,839		1,839		—		—		—		1,839
Non-qualified deferred compensation plan	7,149		7,149		—		7,149		—		—
Total	$	8,988	$	8,988	$	—	$	7,149	$	—	$	1,839
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	613
Change in estimate	(337		)
Payments	(863		)
Ending earnout and milestone payment liability at September 27, 2014	$	1,839