CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Millions, unless otherwise specified	Mar. 29, 2015	Dec. 28, 2014
Current assets:
Cash and cash equivalents	$ 34.4	$ 34.7
Restricted cash	1.6	5.4
Accounts receivable, net	238.6	248.2
Inventoried costs	72.1	68.0
Prepaid expenses	8.4	8.5
Other current assets	11.1	10.1
Total current assets	366.2	374.9
Property, plant and equipment, net	81.5	82.6
Goodwill	596.4	596.4
Intangible assets, net	47.7	52.3
Other assets	30.8	32.6
Total assets	1,122.6	1,138.8
Current liabilities:
Accounts payable	42.5	48.4
Accrued expenses	31.5	34.2
Accrued compensation	39.2	46.4
Accrued interest	16.5	5.6
Billings in excess of costs and earnings on uncompleted contracts	56.5	52.1
Deferred income tax liability	30.2	30.3
Other current liabilities	6.6	9.1
Total current liabilities	223.0	226.1
Long-term debt principal, net of current portion	622.0	622.0
Line of credit	41.0	41.0
Other long-term liabilities	25.1	25.4
Total liabilities	911.1	914.5
Commitments and contingencies
Stockholders’ equity:
Preferred stock, $0.001 par value, 5,000,000 shares authorized, 0 shares outstanding at December 28, 2014 and March 29, 2015	0	0
Common stock, $0.001 par value, 195,000,000 shares authorized; 57,801,978 and 58,273,919 shares issued and outstanding at December 28, 2014 and March 29, 2015, respectively	0	0
Additional paid-in capital	867.1	863.4
Accumulated other comprehensive loss	(1.9)	(1.7)
Accumulated deficit	(653.7)	(637.4)
Total stockholders' equity	211.5	224.3
Total liabilities and stockholders’ equity	$ 1,122.6	$ 1,138.8