Consolidated Statements of Cash Flows (unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Jun. 30, 2012	Jul. 02, 2011
Cash flows from operating activities:
Net income	$ 36,305	$ 36,050
Adjustments to reconcile net income to net cash provided by operating activities:
Stock-based compensation	2,429	2,225
Excess tax benefits from stock-based compensation	(676)	(306)
Net periodic pension benefit cost	503	541
Depreciation and amortization	9,865	9,650
Deferred income taxes	316	(36)
Bad debt provision	950	634
Changes in operating assets and liabilities:
Accounts and unbilled contracts receivable	2,438	(29,696)
Inventories	(73)	(13,653)
Prepaid expenses	(1,655)	(380)
Accounts payable	1,753	7,137
Accrued payroll and related costs	(1,278)	(469)
Advance payments from customers	(1,475)	17,783
Accrued warranty costs	(1,587)	(1,877)
Other assets and liabilities	4,366	7,902
Net cash provided by operating activities	52,181	35,505
Cash flows from investing activities:
Purchases of property and equipment	(11,668)	(7,552)
Cash flows from financing activities:
Net (repayments) receipts under short-term borrowings	(40)	2
Excess tax benefits from stock-based compensation	676	306
Cash dividends	(11,950)	(9,300)
Proceeds from exercise of stock options and employee stock purchase plan	14,629	12,078
Payments to purchase and retire common stock		(9,711)
Net cash provided by (used in) financing activities	3,315	(6,625)
Effect of exchange rate on changes in cash	(2,411)	3,362
Net increase in cash and cash equivalents	41,417	24,690
Cash and cash equivalents, at beginning of period	104,095	76,611
Cash and cash equivalents, at end of period	145,512	101,301
Cash paid during the period for -
Interest	781	989
Income taxes	25,449	3,876
Non-cash financing activities:
Dividends declared not yet paid	$ 3,924