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CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions | Dec. 30, 2018 | Dec. 31, 2017
--- | --- | ---
Current assets: |  |
Cash and cash equivalents | $ 182.7 | $ 130.5
Restricted cash | 0.3 | 0.4
Accounts receivable, net | 64.6 | 74.2
Unbilled receivables, net | 172.8 | 138.1
Inventoried costs | 46.8 | 49.0
Prepaid expenses | 8.9 | 11.1
Other current assets | 10.3 | 9.5
Current assets of discontinued operations | 8.3 | 58.6
Total current assets | 494.7 | 471.4
Property, plant and equipment, net | 67.1 | 58.0
Goodwill | 425.7 | 425.7
Intangible assets, net | 16.1 | 22.0
Other assets | 6.5 | 8.1
Non-current assets of discontinued operations | 0.0 | 38.8
Total assets | 1,010.1 | 1,024.0
Current liabilities: |  |
Accounts payable | 46.6 | 34.7
Accrued expenses | 38.1 | 40.9
Accrued compensation | 33.5 | 30.2
Accrued interest | 1.6 | 1.7
Billings in excess of costs and earnings on uncompleted contracts | 34.9 | 42.8
Other current liabilities | 4.7 | 9.4
Current liabilities of discontinued operations | 5.3 | 29.2
Total current liabilities | 164.7 | 188.9
Long-term debt principal, net of current portion | 294.2 | 293.5
Other long-term liabilities | 25.5 | 24.1
Long-term liabilities of discontinued operations | 6.4 | 6.0
Total liabilities | 490.8 | 512.5
Commitments and contingencies |  |
Stockholders’ equity: |  |
Preferred stock, $0.001 par value, 5,000,000 authorized, 0 shares outstanding at December 30, 2018 and December 31, 2017 | 0.0 | 0.0
Common stock, $0.001 par value, 195,000,000 shares authorized; 103,766,899 and 103,297,525 shares issued and outstanding at December 30, 2018 and December 31, 2017, respectively | 0.0 | 0.0
Additional paid-in capital | 1,244.5 | 1,233.7
Accumulated other comprehensive loss | (0.7) | (1.4)
Accumulated deficit | (724.5) | (720.8)
Total stockholders’ equity | 519.3 | 511.5
Total liabilities and stockholders’ equity | $ 1,010.1 | $ 1,024.0

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