CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Dec. 25, 2022	Dec. 26, 2021
Current assets:
Cash and cash equivalents	$ 81.3	$ 349.4
Accounts receivable, net	105.7	93.9
Unbilled receivables, net	222.8	190.8
Inventoried costs	125.5	91.7
Prepaid expenses	11.9	9.8
Other current assets	35.4	22.5
Total current assets	582.6	758.1
Property, plant and equipment, net	213.1	168.3
Operating lease right-of-use assets	47.4	38.5
Goodwill	558.2	493.9
Intangible assets, net	55.2	43.2
Other assets	95.0	87.5
Total assets	1,551.5	1,589.5
Current liabilities:
Accounts payable	57.3	50.4
Accrued expenses	33.8	27.2
Accrued compensation	52.2	47.3
Accrued interest	1.5	1.5
Billings in excess of costs and earnings on uncompleted contracts	62.1	58.1
Current portion of operating lease liabilities	10.8	10.1
Other current liabilities	15.6	25.7
Current liabilities of discontinued operations	0.9	0.8
Total current liabilities	234.2	221.1
Long-term debt	250.2	296.7
Operating lease liabilities, net of current portion	40.8	32.7
Other long-term liabilities	77.4	76.2
Long-term liabilities of discontinued operations	1.4	2.5
Total liabilities	604.0	629.2
Commitments and contingencies
Redeemable noncontrolling interest	11.2	15.2
Stockholders’ equity:
Preferred stock, $0.001 par value, 5,000,000 authorized, 0 shares outstanding at December 25, 2022 and December 26, 2021	0.0	0.0
Common stock, $0.001 par value, 195,000,000 shares authorized; 125,985,306 and 123,987,424 shares issued and outstanding at December 25, 2022 and December 26, 2021, respectively	0.0	0.0
Additional paid-in capital	1,608.4	1,578.9
Accumulated other comprehensive income (loss)	(0.8)	0.6
Accumulated deficit	(671.3)	(634.4)
Total stockholders’ equity	936.3	945.1
Total liabilities and stockholders’ equity	$ 1,551.5	$ 1,589.5