Receivables (Tables)

3 Months Ended

Dec. 28, 2012

Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract]

Schedule of Accounts, Notes, Loans and Financing Receivable

The following table presents the components of "Receivables" appearing in the accompanying Consolidated Balance Sheets at December 28, 2012 and September 28, 2012 as well as certain other related information (in thousands):

	December 28, 2012		September 28, 2012
Components of receivables:
Amounts billed	$	1,119,114	$	1,193,500
Unbilled receivables and other	1,060,652		1,110,008
Retentions receivable	44,093		45,384
Total receivables, net	$	2,223,859	$	2,348,892
Other information about receivables:
Amounts due from the United States federal government,     included above, net of advanced billings	$	261,272	$	294,327
Claims receivable	$	32,737	$	26,309