CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Dec. 31, 2017	Dec. 25, 2016
Current assets:
Cash and cash equivalents	$ 129.6	$ 69.1
Restricted cash	0.4	0.5
Accounts receivable, net	268.4	229.4
Inventoried costs	50.4	55.4
Income taxes receivable	2.4	4.6
Prepaid expenses	12.9	8.9
Other current assets	7.2	5.2
Total current assets	471.3	373.1
Property, plant and equipment, net	61.2	49.8
Goodwill	461.2	485.4
Intangible assets, net	22.0	32.6
Other assets	8.3	7.7
Total assets	1,024.0	948.6
Current liabilities:
Accounts payable	48.8	52.7
Accrued expenses	45.6	50.0
Accrued compensation	34.8	39.1
Accrued interest	1.7	3.6
Billings in excess of costs and earnings on uncompleted contracts	47.2	41.8
Other current liabilities	8.9	6.7
Current portion of long-term debt	0.8	1.0
Current liabilities of discontinued operations	1.1	1.6
Total current liabilities	188.9	196.5
Long-term debt principal, net of current portion	293.5	431.0
Deferred income tax liability	7.0	17.3
Other long-term liabilities	19.3	23.7
Long-term liabilities of discontinued operations	3.8	3.7
Total liabilities	512.5	672.2
Commitments and contingencies
Stockholders’ equity:
Preferred stock, $0.001 par value, 5,000,000 authorized, 0 shares outstanding at December 31, 2017 and December 25, 2016	0.0	0.0
Common stock, $0.001 par value, 195,000,000 shares authorized; 103,297,525 and 73,945,533 shares issued and outstanding at December 31, 2017 and December 25, 2016, respectively	0.0	0.0
Additional paid-in capital	1,233.7	956.2
Accumulated other comprehensive loss	(1.4)	(1.7)
Accumulated deficit	(720.8)	(678.1)
Total stockholders’ equity	511.5	276.4
Total liabilities and stockholders’ equity	$ 1,024.0	$ 948.6