Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Dec. 27, 2013		Dec. 28, 2012
Operating activities:
Net income including controlling interest	$ 45,246		$ 51,477
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	12,409		13,129
Stock-based compensation	15,054		17,704
Amortization of premium on investments	2,266		3,794
Excess tax benefit from exercise of stock options	(1,010)		(469)
Provision for doubtful accounts	374		(179)
Deferred income taxes	(1,322)		(2,627)
Other non-cash items affecting net income	105		(691)
Changes in operating assets and liabilities:
Accounts receivable	21,148		(8,064)
Inventories	2,225		(6,173)
Prepaid expenses and other assets	(1,631)		8,916
Accounts payable and other liabilities	(16,696)		(19,898)
Income taxes, net	4,795		9,512
Deferred revenue	(5,897)		(143)
Other non-current liabilities	216		1,012
Net cash provided by operating activities	77,282		67,300
Investing activities:
Purchases of available-for-sale securities	(102,717)		(204,135)
Proceeds from sales of available-for-sale securities	27,426		389,068
Proceeds from maturities of available-for-sale securities	46,739		51,325
Purchases of property, plant and equipment	(8,967)		(6,717)
Other investments	0		(3,000)
Purchases of intangible assets	0		(4,048)
Proceeds from sale of property, plant and equipment and assets held for sale	42		19
Change in restricted cash	(174)		(291)
Net cash provided by/(used in) investing activities	(37,651)		222,221
Financing activities:
Proceeds from issuance of common stock	8,127		4,502
Repurchase of common stock	(11,660)	[1]	(53,956)
Payment of cash dividend	0		(408,206)
Payments of Ordinary Dividends, Noncontrolling Interest	0		(5,039)
Excess tax benefit from the exercise of stock options	1,010		469
Shares repurchased for tax withholdings on vesting of restricted stock	(6,727)		(3,636)
Net cash used in financing activities	(9,250)		(465,866)
Effect of foreign exchange rate changes on cash and cash equivalents	(138)		(62)
Net increase/(decrease) in cash and cash equivalents	30,243		(176,407)
Cash and cash equivalents at beginning of period	454,397		492,600
Cash and cash equivalents at end of period	484,640		316,193
Supplemental disclosure:
Cash paid for income taxes, net of refunds received	11,593		11,734
Cash paid for interest	$ 1		$ 1

[1] Cost of share repurchases includes the price paid per share and applicable commissions.