GOODWILL AND INTANGIBLE ASSETS, NET (Tables)

12 Months Ended

Sep. 30, 2012

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets

Goodwill and intangible assets, net consisted of the following components (amounts in thousands):

	September 30, 2012					October 2, 2011					Life (in years)
	Gross Carrying Value		Accumulated Amortization			Gross Carrying Value		Accumulated Amortization
Amortizable intangible assets
Completed technology	$	309,470	$	(118,463	)	$	253,838	$	(76,010	)	2 to 15
Customer relationships	270,030		(64,885		)	116,760		(21,464		)	4 to 15
Backlog	46,630		(46,003		)	26,900		(22,242		)	1 to 2
Other	13,341		(10,129		)	7,394		(3,487		)	5
	$	639,471	$	(239,480	)	$	404,892	$	(123,203	)
Non-amortizing intangible assets
Goodwill	$	790,236				$	491,079

Reconciliation of Goodwill

A reconciliation of our goodwill for the years ended September 30, 2012 and October 2, 2011 is as follows (in thousands):

	September 30, 2012			October 2, 2011
Beginning balance	$	491,079		$	270,832
Additions from acquisitions	300,266			220,291
Post-acquisition adjustments	(1,109		)	(44		)
Ending balance	$	790,236		$	491,079

Estimated Amortization Expense

Estimated amortization in each of the five succeeding years and thereafter is as follows (amounts in thousands):

	Fiscal Year
	2013		2014		2015		2016		2017		Thereafter
Amortization expense	$	84,818	$	79,399	$	73,162	$	69,565	$	66,400	$	26,647