Basis Of Presentation Basis of Presentation (Impact of adoption of ASC 606 on Consolidated Condensed Balance Sheet) (Details) - USD ($) $ in Thousands	Jun. 29, 2019	Sep. 30, 2018	Sep. 29, 2018	Jun. 30, 2018
Item Effected
Receivables	$ 922,853	$ 883,032	$ 793,911
Inventories	515,055	446,531	512,522
Total current assets	1,571,192		1,476,421
Deferred income taxes	15,736	17,462	17,328
Total assets	3,066,139		2,964,048
Contract advances	147,677	152,608	151,687
Contract loss and contract-related reserves	57,556	49,847	47,417
Other accrued liabilities	108,541	122,083	120,944
Total current liabilities	675,774		680,624
Deferred income taxes	56,664	50,328	46,477
Total liabilities	1,710,482		1,739,062
Retained earnings	2,096,174	$ 1,988,437	1,973,514
Accumulated other comprehensive loss	(366,554)		(372,181)
Total shareholders' equity	1,355,657			$ 1,262,267
Total liabilities and shareholders' equity	3,066,139		$ 2,964,048
ASC 605
Item Effected
Receivables	813,187
Inventories	592,925
Total current assets	1,539,396
Deferred income taxes	15,783
Total assets	3,034,390
Contract advances	148,393
Contract loss and contract-related reserves	55,755
Other accrued liabilities	104,656
Total current liabilities	670,804
Deferred income taxes	53,054
Total liabilities	1,701,902
Retained earnings	2,073,296
Accumulated other comprehensive loss	(366,845)
Total shareholders' equity	1,332,488
Total liabilities and shareholders' equity	3,034,390
Adjustment for ASC 606
Item Effected
Receivables	109,666
Inventories	(77,870)
Total current assets	31,796
Deferred income taxes	(47)
Total assets	31,749
Contract advances	(716)
Contract loss and contract-related reserves	1,801
Other accrued liabilities	3,885
Total current liabilities	4,970
Deferred income taxes	3,610
Total liabilities	8,580
Retained earnings	22,878
Accumulated other comprehensive loss	291
Total shareholders' equity	23,169
Total liabilities and shareholders' equity	31,749
ASC 606
Item Effected
Receivables	922,853
Inventories	515,055
Total current assets	1,571,192
Deferred income taxes	15,736
Total assets	3,066,139
Contract advances	147,677
Contract loss and contract-related reserves	57,556
Other accrued liabilities	108,541
Total current liabilities	675,774
Deferred income taxes	56,664
Total liabilities	1,710,482
Retained earnings	2,096,174
Accumulated other comprehensive loss	(366,554)
Total shareholders' equity	1,355,657
Total liabilities and shareholders' equity	$ 3,066,139