Condensed Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 27, 2024	Sep. 29, 2023	Sep. 27, 2024	Sep. 29, 2023
Revenues:
Total revenues	$ 540.4	$ 435.0	$ 1,534.3	$ 1,289.8
Cost of revenues:
Total cost revenues	447.0	369.8	1,269.8	1,083.5
Gross margin	93.4	65.2	264.5	206.3
Operating expenses:
Research and development	7.1	7.4	21.2	21.7
Sales and marketing	14.4	12.8	42.9	38.6
General and administrative	46.7	39.3	135.1	115.3
Total operating expenses	68.2	59.5	199.2	175.6
Income from operations	25.2	5.7	65.3	30.7
Interest income	1.1	1.2	3.9	2.5
Interest expense	(12.0)	(12.3)	(35.8)	(35.9)
Other income (expense), net	(4.1)	(2.1)	9.3	(0.8)
Income before provision for income taxes	10.2	(7.5)	42.7	(3.5)
Provision for income taxes	9.9	5.3	28.2	17.1
Net income (loss)	0.3	(12.8)	14.5	(20.6)
Less: Net income attributable to noncontrolling interests	2.6	1.7	7.1	6.7
Net income (loss) attributable to UCT	$ (2.3)	$ (14.5)	$ 7.4	$ (27.3)
Net income (loss) per share attributable to UCT common stockholders:
Basic (in dollars per share)	$ (0.05)	$ (0.32)	$ 0.16	$ (0.61)
Diluted (in dollars per share)	$ (0.05)	$ (0.32)	$ 0.16	$ (0.61)
Shares used in computing net income (loss) per share:
Basic (in shares)	45.0	44.8	44.8	44.8
Diluted (in shares)	45.0	44.8	45.4	44.8
Product
Revenues:
Total revenues	$ 479.0	$ 380.9	$ 1,350.2	$ 1,112.0
Cost of revenues:
Total cost revenues	403.3	329.3	1,141.2	955.5
Services
Revenues:
Total revenues	61.4	54.1	184.1	177.8
Cost of revenues:
Total cost revenues	$ 43.7	$ 40.5	$ 128.6	$ 128.0