Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Dec. 29, 2012	Dec. 24, 2011
OPERATING ACTIVITIES
Net income	$ 3,118	$ 20,812
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	24,342	16,110
Amortization	103,813	61,013
Non-cash interest expense - amortization of debt discount and deferred financing costs	20,679	19,960
Stock-based compensation expense	12,066	8,657
Excess tax benefit related to equity awards	(2,185)	(1,725)
Deferred income taxes	(70,123)	(13,106)
Gain on sale of intellectual property, net	(53,884)
Fair value adjustments to contingent consideration	10,040	5,122
Fair value write-up of inventory sold	29,876
Loss on disposal of property and equipment	906	373
Other	(1,149)	(1,825)
Changes in operating assets and liabilities:
Accounts receivable	6,903	(6,616)
Inventories	(6,004)	(11,474)
Prepaid income taxes	18,538	340
Prepaid expenses and other assets	(1,177)	(530)
Accounts payable	(10,629)	(499)
Accrued expenses and other liabilities	76,138	11,306
Deferred revenue	(6,243)	3,813
Net cash provided by operating activities	155,025	111,731
INVESTING ACTIVITIES
Payment of additional acquisition consideration	(16,808)	(9,784)
Proceeds from sale of business, net of cash transferred	1,488
Purchase of property and equipment	(11,233)	(6,790)
Increase in equipment under customer usage agreements	(11,214)	(7,886)
Purchase of insurance contracts	(4,000)
Proceeds from sale of intellectual property	60,000
Purchase of cost method investments	(3,625)	(150)
Decrease in other assets	1,144	9
Net cash provided by (used in) investing activities	15,752	(24,601)
FINANCING ACTIVITIES
Repayment of long-term debt	(16,250)
Payment of contingent consideration	(3,408)	(4,105)
Net proceeds from issuance of common stock pursuant to employee stock plans	12,777	1,627
Excess tax benefit related to equity awards	2,185	1,725
Payment of employee restricted stock minimum tax withholdings	(7,885)	(5,561)
Net cash used in financing activities	(12,581)	(6,314)
Effect of exchange rate changes on cash and cash equivalents	(155)	(66)
Net increase in cash and cash equivalents	158,041	80,750
Cash and cash equivalents, beginning of period	560,430	712,332
Cash and cash equivalents, end of period	$ 718,471	$ 793,082