CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Jun. 26, 2016	Dec. 27, 2015
Current assets:
Cash and cash equivalents	$ 17.6	$ 28.5
Restricted cash	0.7	0.7
Accounts receivable, net	211.0	206.8
Inventoried costs	49.9	55.6
Prepaid expenses	11.5	10.6
Other current assets	11.4	18.2
Total current assets	302.1	320.4
Property, plant and equipment, net	51.2	56.2
Goodwill	483.4	483.4
Intangible assets, net	29.5	36.5
Other assets	8.0	6.8
Total assets	874.2	903.3
Current liabilities:
Accounts payable	47.9	48.3
Accrued expenses	31.0	33.1
Accrued compensation	34.2	36.8
Accrued interest	3.8	3.9
Billings in excess of costs and earnings on uncompleted contracts	43.2	42.3
Other current liabilities	5.6	6.1
Current liabilities of discontinued operations	1.9	1.9
Total current liabilities	167.6	172.4
Long-term debt, net of current portion	444.7	444.1
Other long-term liabilities	32.5	28.5
Non-current liabilities of discontinued operations	3.8	4.1
Total liabilities	648.6	649.1
Commitments and contingencies
Stockholders’ equity:
Preferred stock, $0.001 par value, 5,000,000 shares authorized, 0 shares outstanding at June 26, 2016 and December 27, 2015	0.0	0.0
Common stock, $0.001 par value, 195,000,000 shares authorized; 59,675,841 and 59,139,651 shares issued and outstanding at June 26, 2016 and December 27, 2015, respectively	0.0	0.0
Additional paid-in capital	877.3	873.2
Accumulated other comprehensive loss	(1.5)	(1.4)
Accumulated deficit	(650.2)	(617.6)
Total stockholders’ equity	225.6	254.2
Total liabilities and stockholders’ equity	$ 874.2	$ 903.3