Basis Of Presentation Basis of Presentation (Impact of adoption of ASC 606 on Consolidated Condensed Balance Sheet) (Details) - USD ($) $ in Thousands	Mar. 30, 2019	Sep. 30, 2018	Sep. 29, 2018	Mar. 31, 2018
Item Effected
Receivables	$ 898,801	$ 883,032	$ 793,911
Inventories	489,067	446,531	512,522
Total current assets	1,547,169		1,476,421
Deferred income taxes	15,671	17,462	17,328
Total assets	3,032,957		2,964,048
Contract advances	169,836	152,608	151,687
Contract and contract-related loss reserves	49,383	44,688	42,258
Other accrued liabilities	117,094	122,083	120,944
Total current liabilities	688,092		680,624
Deferred income taxes	53,272	50,328	46,477
Total liabilities	1,718,515		1,739,062
Retained earnings	2,057,435	$ 1,988,437	1,973,514
Accumulated other comprehensive loss	(370,381)		(372,181)
Total shareholders' equity	1,314,442		1,224,986	$ 1,255,704
Total liabilities and shareholders' equity	3,032,957		$ 2,964,048
ASC 605
Item Effected
Receivables	792,124
Inventories	568,287
Total current assets	1,519,712
Deferred income taxes	15,776
Total assets	3,005,605
Contract advances	169,349
Contract and contract-related loss reserves	47,223
Other accrued liabilities	114,728
Total current liabilities	683,079
Deferred income taxes	49,658
Total liabilities	1,709,888
Retained earnings	2,039,021
Accumulated other comprehensive loss	(370,692)
Total shareholders' equity	1,295,717
Total liabilities and shareholders' equity	3,005,605
Adjustment for ASC 606
Item Effected
Receivables	106,677
Inventories	(79,220)
Total current assets	27,457
Deferred income taxes	(105)
Total assets	27,352
Contract advances	487
Contract and contract-related loss reserves	2,160
Other accrued liabilities	2,366
Total current liabilities	5,013
Deferred income taxes	3,614
Total liabilities	8,627
Retained earnings	18,414
Accumulated other comprehensive loss	311
Total shareholders' equity	18,725
Total liabilities and shareholders' equity	27,352
ASC 606
Item Effected
Receivables	898,801
Inventories	489,067
Total current assets	1,547,169
Deferred income taxes	15,671
Total assets	3,032,957
Contract advances	169,836
Contract and contract-related loss reserves	49,383
Other accrued liabilities	117,094
Total current liabilities	688,092
Deferred income taxes	53,272
Total liabilities	1,718,515
Retained earnings	2,057,435
Accumulated other comprehensive loss	(370,381)
Total shareholders' equity	1,314,442
Total liabilities and shareholders' equity	$ 3,032,957