CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Mar. 26, 2023	Dec. 25, 2022
Current assets:
Cash and cash equivalents	$ 46.7	$ 81.3
Accounts receivable, net	143.9	105.7
Unbilled receivables, net	209.9	222.8
Inventoried costs	134.0	125.5
Prepaid expenses	14.3	11.9
Other current assets	39.3	35.4
Total current assets	588.1	582.6
Property, plant and equipment, net	213.6	213.1
Operating lease right-of-use assets	46.6	47.4
Goodwill	558.2	558.2
Intangible assets, net	53.6	55.2
Other assets	97.0	95.0
Total assets	1,557.1	1,551.5
Current liabilities:
Accounts payable	54.9	57.3
Accrued expenses	35.9	33.8
Accrued compensation	56.2	52.2
Accrued interest	1.5	1.5
Billings in excess of costs and earnings on uncompleted contracts	65.2	62.1
Current portion of operating lease liabilities	11.1	10.8
Other current liabilities	19.3	15.6
Current liabilities of discontinued operations	0.9	0.9
Total current liabilities	245.0	234.2
Long-term debt, net of current portion	250.3	250.2
Operating lease liabilities, net of current portion	40.0	40.8
Other long-term liabilities	76.8	77.4
Long-term liabilities of discontinued operations	1.4	1.4
Total liabilities	613.5	604.0
Commitments and contingencies
Redeemable noncontrolling interest	12.4	11.2
Stockholders’ equity:
Preferred stock, $0.001 par value, 5,000,000 shares authorized, 0 shares outstanding at March 26, 2023 and December 25, 2022	0.0	0.0
Common stock, $0.001 par value, 195,000,000 shares authorized; 126,678,288 and 125,985,306 shares issued and outstanding at March 26, 2023 and December 25, 2022, respectively	0.0	0.0
Additional paid-in capital	1,610.0	1,608.4
Accumulated other comprehensive loss	(0.5)	(0.8)
Accumulated deficit	(678.3)	(671.3)
Total stockholders’ equity	931.2	936.3
Total liabilities and stockholders’ equity	$ 1,557.1	$ 1,551.5