Accounts Receivables (Tables)

12 Months Ended

Jan. 01, 2012

Accounts Receivables [Abstract]

Summary of Accounts Receivables

	Balance at year-end
	2011			2010
U.S. Government and prime contractors contract receivables:
Billed receivables	$	24.0		$	21.6
Unbilled receivables		26.9			33.1
Commercial and other receivables		222.9			203.0
		273.8			257.7
Reserve for doubtful accounts		(3.8	)		(2.9	)
Total accounts receivable, net	$	270.0		$	254.8