Accounts Receivable (Tables)

12 Months Ended

Dec. 28, 2014

Receivables [Abstract]

Accounts Receivable

Accounts receivable are summarized as follows (in millions):

	Balance at year-end
	2014			2013
Commercial and other receivables	$	357.5		$	329.7
U.S. Government and prime contractors contract receivables:
Billed receivables	17.3			25.7
Unbilled receivables	33.7			27.8
	408.5			383.2
Reserve for doubtful accounts	(7.8		)	(5.2		)
Total accounts receivable, net	$	400.7		$	378.0