Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 30, 2013	Mar. 24, 2012	Mar. 30, 2013	Mar. 24, 2012
Revenues:
Product sales	$ 518,014	$ 388,085	$ 1,053,216	$ 780,181
Service and other revenues	94,649	83,080	190,809	163,695
Total revenues	612,663	471,165	1,244,025	943,876
Costs and expenses:
Cost of product sales	208,278	154,423	431,771	286,367
Cost of product sales - amortization of intangible assets	75,733	44,341	151,020	90,512
Cost of service and other revenues	49,326	46,291	100,235	91,517
Research and development	49,621	29,297	101,130	57,639
Selling and marketing	88,614	78,539	183,057	155,999
General and administrative	64,233	41,843	118,624	88,338
Amortization of intangible assets	28,667	16,629	57,193	31,471
Contingent consideration - compensation expense	29,388	18,121	58,874	28,562
Contingent consideration - fair value adjustments	799	43,188	10,839	48,310
Gain on sale of intellectual property		(12,424)	(53,884)	(12,424)
Restructuring and divestiture charges	12,462	783	16,395	692
Costs and expenses, total	607,121	461,031	1,175,254	866,983
Income from operations	5,542	10,134	68,771	76,893
Interest income	207	590	467	1,252
Interest expense	(76,049)	(28,512)	(148,130)	(58,021)
Debt extinguishment loss	(3,247)	(42,347)	(3,247)	(42,347)
Other (expense) income, net	(201)	1,527	1,038	3,519
Loss before income taxes	(73,748)	(58,608)	(81,101)	(18,704)
(Benefit) provision for income taxes	(22,644)	(18,335)	(33,115)	757
Net (loss) income	$ (51,104)	$ (40,273)	$ (47,986)	$ (19,461)
Net loss per common share:
Basic	$ (0.19)	$ (0.15)	$ (0.18)	$ (0.07)
Diluted	$ (0.19)	$ (0.15)	$ (0.18)	$ (0.07)
Weighted average number of shares outstanding:
Basic	268,175	263,900	267,259	263,309
Diluted	268,175	263,900	267,259	263,309