CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Mar. 27, 2016	Dec. 27, 2015
Current assets:
Cash and cash equivalents	$ 20.1	$ 28.5
Restricted cash	0.7	0.7
Accounts receivable, net	208.8	206.8
Inventoried costs	52.6	55.6
Prepaid expenses	10.4	10.6
Other current assets	12.7	18.2
Total current assets	305.3	320.4
Property, plant and equipment, net	53.8	56.2
Goodwill	483.4	483.4
Intangible assets, net	33.8	36.5
Other assets	8.1	6.8
Total assets	884.4	903.3
Current liabilities:
Accounts payable	39.8	48.3
Accrued expenses	29.9	33.1
Accrued compensation	32.6	36.8
Accrued interest	11.7	3.9
Billings in excess of costs and earnings on uncompleted contracts	49.0	42.3
Other current liabilities	5.9	6.1
Current liabilities of discontinued operations	1.4	1.9
Total current liabilities	170.3	172.4
Long-term debt principal, net of current portion	444.4	444.1
Other long-term liabilities	31.1	28.5
Non-current liabilities of discontinued operations	3.9	4.1
Total liabilities	$ 649.7	$ 649.1
Commitments and contingencies
Stockholders’ equity:
Preferred stock, $0.001 par value, 5,000,000 shares authorized, 0 shares outstanding at March 27, 2016 and December 27, 2015	$ 0.0	$ 0.0
Common stock, $0.001 par value, 195,000,000 shares authorized; 59,583,569 and 59,139,651 shares issued and outstanding at March 27, 2016 and December 27, 2015, respectively	0.0	0.0
Additional paid-in capital	875.9	873.2
Accumulated other comprehensive loss	(1.4)	(1.4)
Accumulated deficit	(639.8)	(617.6)
Total stockholders’ equity	234.7	254.2
Total liabilities and stockholders’ equity	$ 884.4	$ 903.3