CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Mar. 29, 2020	Dec. 29, 2019
Current assets:
Cash and cash equivalents	$ 158.6	$ 172.6
Accounts receivable, net	78.3	85.0
Unbilled receivables, net	181.0	179.4
Inventoried costs	62.7	61.1
Prepaid expenses	14.0	9.4
Other current assets	14.5	11.4
Current assets of discontinued operations	1.2	3.3
Total current assets	510.3	522.2
Property, plant and equipment, net	119.6	116.9
Operating lease right-of-use assets	39.8	42.1
Goodwill	463.3	455.6
Intangible assets, net	41.0	39.5
Other assets	9.3	9.7
Total assets	1,183.3	1,186.0
Current liabilities:
Accounts payable	44.3	53.8
Accrued expenses	28.4	32.7
Accrued compensation	40.9	37.1
Accrued interest	6.4	1.6
Billings in excess of costs and earnings on uncompleted contracts	38.3	34.3
Current portion of operating lease liabilities	8.7	9.9
Other current liabilities	10.1	10.0
Current liabilities of discontinued operations	3.0	3.3
Total current liabilities	180.1	182.7
Long-term debt	295.3	295.1
Operating lease liabilities, net of current portion	36.0	37.6
Other long-term liabilities	73.9	78.7
Long-term liabilities of discontinued operations	2.8	2.8
Total liabilities	588.1	596.9
Commitments and contingencies (Note 14)
Redeemable noncontrolling interest	15.0	15.0
Stockholders’ equity:
Preferred stock, $0.001 par value, 5,000,000 shares authorized, 0 shares outstanding at March 29, 2020 and December 29, 2019	0.0	0.0
Common stock, $0.001 par value, 195,000,000 shares authorized; 106,960,828 and 106,635,508 shares issued and outstanding at March 29, 2020 and December 29, 2019, respectively	0.0	0.0
Additional paid-in capital	1,292.6	1,286.5
Accumulated other comprehensive loss	(0.2)	(0.4)
Accumulated deficit	(712.2)	(712.0)
Total stockholders’ equity	580.2	574.1
Total liabilities and stockholders’ equity	$ 1,183.3	$ 1,186.0