CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)	Sep. 29, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 301,500,000	$ 72,800,000
Accounts receivable, net	112,700,000	128,800,000
Unbilled receivables, net	206,400,000	200,400,000
Inventoried costs	158,900,000	156,200,000
Prepaid expenses	37,200,000	16,000,000.0
Other current assets	21,700,000	20,000,000.0
Total current assets	838,400,000	594,200,000
Property, plant and equipment, net	280,500,000	243,600,000
Operating lease right-of-use assets	39,900,000	45,700,000
Goodwill	568,900,000	569,100,000
Intangible assets, net	55,900,000	62,400,000
Other assets	128,800,000	117,500,000
Total assets	1,912,400,000	1,632,500,000
Current liabilities:
Accounts payable	61,000,000.0	63,100,000
Accrued expenses	39,900,000	35,400,000
Accrued compensation	60,600,000	64,700,000
Accrued interest	1,200,000	1,700,000
Billings in excess of costs and earnings on uncompleted contracts	61,900,000	101,800,000
Current portion of operating lease liabilities	11,600,000	12,100,000
Other current liabilities	24,300,000	13,700,000
Total current liabilities	260,500,000	292,500,000
Long-term debt, net of current portion	177,000,000.0	219,300,000
Operating lease liabilities, net of current portion	32,200,000	37,800,000
Other long-term liabilities	99,800,000	84,400,000
Total liabilities	569,500,000	634,000,000.0
Commitments and contingencies (Note 14)
Redeemable noncontrolling interest	0	22,500,000
Stockholders’ equity:
Preferred stock, $0.001 par value, 5,000,000 shares authorized, 0 shares outstanding at September 29, 2024 and December 31, 2023	0	0
Common stock, $0.001 par value, 195,000,000 shares authorized; 151,015,662 and 129,286,964 shares issued and outstanding at September 29, 2024 and December 31, 2023, respectively	200,000	0
Additional paid-in capital	2,010,200,000	1,654,500,000
Accumulated other comprehensive income	300,000	1,700,000
Accumulated deficit	(667,800,000)	(680,200,000)
Total stockholders’ equity	1,342,900,000	976,000,000.0
Total liabilities and stockholders’ equity	$ 1,912,400,000	$ 1,632,500,000