Consolidated Condensed Statements Of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Dec. 28, 2019	Dec. 29, 2018
CASH FLOWS FROM OPERATING ACTIVITIES
Net earnings	$ 50,027	$ 42,769
Adjustments to reconcile net earnings to net cash provided (used) by operating activities:
Depreciation	18,386	17,848
Amortization	3,281	3,746
Deferred income taxes	3,205	92
Equity-based compensation expense	2,381	2,008
Other	(1,017)	1,020
Changes in assets and liabilities providing (using) cash:
Receivables	(18,879)	12,810
Inventories	(13,782)	(24,399)
Accounts payable	(29,153)	(13,199)
Contract advances	40,215	31,531
Accrued expenses	(26,998)	(18,473)
Accrued income taxes	4,709	511
Net pension and post retirement liabilities	8,327	8,368
Other assets and liabilities	1,404	(394)
Net cash provided by operating activities	42,106	64,238
CASH FLOWS FROM INVESTING ACTIVITIES
Acquisitions of businesses, net of cash acquired	(53,906)	0
Purchase of property, plant and equipment	(27,310)	(24,375)
Other investing transactions	(3,684)	2,785
Net cash used by investing activities	(84,900)	(21,590)
CASH FLOWS FROM FINANCING ACTIVITIES
Net short-term (borrowings) repayments	0	(1,490)
Proceeds from revolving lines of credit	272,000	131,100
Payments on revolving lines of credit	(617,500)	(175,200)
Payments on long-term debt	0	(85)
Proceeds from senior notes, net of issuance costs	492,750	0
Payments on finance lease obligations	(88)	0
Payments of dividends	(8,661)	(8,703)
Purchase of outstanding shares for treasury	(57,776)	(9,450)
Proceeds from sale of stock held by SECT	0	6,636
Purchase of stock held by SECT	(2,440)	(1,930)
Other financing transactions	(1,895)	0
Net cash provided (used) by financing activities	76,390	(59,122)
Effect of exchange rate changes on cash	1,147	(473)
Decrease in cash, cash equivalents and restricted cash	34,743	(16,947)
Cash, cash equivalents and restricted cash at beginning of period	92,548	127,706
Cash, cash equivalents and restricted cash at end of period	127,291	110,759
SUPPLEMENTAL CASH FLOW INFORMATION
Treasury shares issued as compensation	5,016	5,720
Equipment acquired through financing	$ 568	$ 0