CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Millions, unless otherwise specified	Sep. 29, 2013	Dec. 30, 2012
Current assets:
Cash and cash equivalents	$ 49.8	$ 49.0
Restricted cash	5.0	5.5
Accounts receivable, net	269.0	271.9
Inventoried costs	83.4	94.3
Prepaid expenses	18.4	17.4
Other current assets	3.7	17.3
Total current assets	429.3	455.4
Property, plant and equipment, net	84.5	85.6
Goodwill	596.4	596.4
Intangible assets, net	78.8	106.1
Other assets	35.7	40.4
Total assets	1,224.7	1,283.9
Current liabilities:
Accounts payable	57.7	83.6
Accrued expenses	45.4	46.4
Accrued compensation	37.1	47.8
Accrued interest	22.0	6.3
Billings in excess of costs and earnings on uncompleted contracts	51.2	43.7
Deferred income tax liability	29.0	28.9
Other current liabilities	13.8	22.1
Total current liabilities	256.2	278.8
Long-term debt principal, net of current portion	629.0	629.7
Long-term debt premium	15.6	18.7
Other long-term liabilities	22.2	32.6
Total liabilities	923.0	959.8
Commitments and contingencies
Stockholders’ equity:
Preferred stock, $0.001 par value, 5,000,000 shares authorized, 0 shares outstanding at December 30, 2012 and September 29, 2013	0	0
Common stock, $0.001 par value, 195,000,000 shares authorized; 56,613,024 and 57,048,005 shares issued and outstanding at December 30, 2012 and September 29, 2013, respectively	0	0
Additional paid-in capital	854.5	847.1
Accumulated other comprehensive loss	(0.8)	(0.8)
Accumulated deficit	(552.0)	(522.2)
Total stockholders' equity	301.7	324.1
Total liabilities and stockholders’ equity	$ 1,224.7	$ 1,283.9