Goodwill and Purchased Intangible Assets (Tables)

3 Months Ended

Mar. 28, 2014

Goodwill And Intangible Assets Disclosure [Abstract]

Goodwill and Other Indefinite Lived Intangible Assets

Details of goodwill and other intangible assets were as follows (in thousands):

	March 28, 2014						December 27, 2013
	Goodwill		Intangible Assets		Total		Goodwill		Intangible Assets		Total
Carrying amount	$	55,918	$	20,487	$	76,404	$	55,918	$	21,708	$	77,626

Details of Purchased Intangible Assets

Details of purchased intangible assets were as follows (in thousands):

	As of March 28, 2014							As of December 27, 2013
	Gross Carrying Amount		Accumulated Amortization			Carrying Value		Gross Carrying Amount		Accumulated Amortization			Carrying Value		Useful Life (in  years)
Customer relationships	$	19,000	$	(9,826	)	$	9,174	$	19,000	$	(8,764	)	$	10,236		7
Tradename (AIT )	$	1,900	$	(774	)	$	1,126	$	1,900	$	(672	)	$	1,228		6
Intellectual property know-how	$	1,600	$	(400	)	$	1,200	$	1,600	$	(343	)	$	1,257		7
Tradename (UCT )	$	8,987	$	—		$	8,987	$	8,987	$	—		$	8,987		*
	$	31,487	$	(11,000	)	$	20,487	$	31,487	$	(9,779	)	$	21,708

Future Estimated Amortization Expense

As of March 28, 2014, future estimated amortization expense is expected to be as follows (in thousands):

	Amortization Expense
2014 (remaining in year)	$	3,662
2015		2,813
2016		2,293
2017		1,386
2018		848
thereafter		498
Total	$	11,500