Basis Of Presentation Basis of Presentation (Cumulative effect from adoption of ASC 606) (Details) - USD ($) $ in Thousands	Jun. 29, 2019	Sep. 30, 2018	Sep. 29, 2018
New Accounting Pronouncements or Change in Accounting Principle
Receivables	$ 922,853	$ 883,032	$ 793,911
Inventories	515,055	446,531	512,522
Deferred income taxes	15,736	17,462	17,328
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
Deferred income taxes	56,664	50,328	46,477
Retained earnings	$ 2,096,174	1,988,437	$ 1,973,514
ASC 606
New Accounting Pronouncements or Change in Accounting Principle
Receivables		89,121
Inventories		(65,991)
Deferred income taxes		134
Contract advances		921
Contract loss and contract-related reserves		2,430
Other accrued liabilities		1,139
Deferred income taxes		3,851
Retained earnings		$ 14,923

Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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