Inventoried Costs (Tables)

6 Months Ended

Jun. 28, 2015

Inventory Disclosure [Abstract]

Schedule of inventoried costs

Inventoried costs consisted of the following components (in millions):

	December 28, 2014			June 28, 2015
Raw materials	$	30.1		$	29.8
Work in process	13.3			21.4
Finished goods	2.8			3.2
Supplies and other	2.1			1.6
Subtotal inventoried costs	48.3			56.0
Less: Customer advances and progress payments	(0.9		)	(6.5		)
Total inventoried costs	$	47.4		$	49.5