Reportable Segments - Summary of Segment Data (Details) - USD ($)	3 Months Ended			6 Months Ended
	Jun. 27, 2025	Mar. 28, 2025	Jun. 28, 2024	Jun. 27, 2025	Jun. 28, 2024	Dec. 27, 2024
Revenues:
Total segment revenues	$ 518,800,000		$ 516,100,000	$ 1,037,400,000	$ 993,900,000
Cost of revenues:
Total cost revenues	439,300,000		427,600,000	873,900,000	822,800,000
Gross profit:
Gross margin	79,500,000		88,500,000	163,500,000	171,100,000
Operating expenses:
Research and development	7,800,000		7,100,000	15,400,000	14,100,000
Sales and marketing	15,500,000		14,800,000	30,500,000	28,500,000
General and administrative	46,900,000		43,700,000	95,400,000	88,300,000
Impairment of goodwill	151,100,000	$ 0	0	151,100,000	0
Total operating expenses	221,300,000		65,600,000	292,400,000	130,900,000
Segment operating profit (loss):
Total segment operating profit	(141,800,000)		22,900,000	(128,900,000)	40,200,000
Interest income	800,000		1,400,000	1,900,000	2,800,000
Interest expense	(10,100,000)		(11,700,000)	(20,000,000.0)	(23,900,000)
Other income (expense), net	(2,200,000)		17,400,000	(1,300,000)	13,500,000
Income (loss) before provision for income taxes	(153,300,000)		30,000,000.0	(148,300,000)	32,600,000
Expenditures for segment property, plant and equipment
Total expenditures for segment assets	16,800,000		13,000,000.0	29,100,000	31,000,000.0
Depreciation and amortization
Total depreciation and amortization	18,700,000		18,800,000	37,700,000	38,000,000.0
Products
Assets	1,745,600,000			1,745,600,000		$ 1,919,900,000
Products
Operating expenses:
Impairment of goodwill	77,600,000			77,600,000
Services
Operating expenses:
Impairment of goodwill	73,500,000			73,500,000
Total operating expenses	88,800,000		15,600,000	103,300,000	31,200,000
Operating Segments
Segment operating profit (loss):
Total segment operating profit	(141,800,000)		22,900,000	(128,900,000)	40,200,000
Operating Segments | Products
Revenues:
Total segment revenues	454,900,000		452,700,000	911,900,000	871,200,000
Cost of revenues:
Total cost revenues	393,300,000		383,900,000	783,500,000	738,000,000.0
Gross profit:
Gross margin	61,600,000		68,800,000	128,400,000	133,200,000
Operating expenses:
Research and development	5,400,000		4,600,000	10,500,000	9,100,000
Sales and marketing	12,700,000		12,200,000	24,700,000	23,100,000
General and administrative	36,800,000		33,200,000	76,300,000	67,500,000
Impairment of goodwill	77,600,000		0	77,600,000	0
Total operating expenses	132,500,000		50,000,000.0	189,100,000	99,700,000
Segment operating profit (loss):
Total segment operating profit	(70,900,000)		18,800,000	(60,700,000)	33,500,000
Expenditures for segment property, plant and equipment
Total expenditures for segment assets	9,700,000		8,300,000	18,800,000	20,000,000.0
Depreciation and amortization
Total depreciation and amortization	12,500,000		12,600,000	25,100,000	25,700,000
Products
Assets	1,468,600,000			1,468,600,000		1,657,000,000
Operating Segments | Services
Revenues:
Total segment revenues	63,900,000		63,400,000	125,500,000	122,700,000
Cost of revenues:
Total cost revenues	46,000,000.0		43,700,000	90,400,000	84,800,000
Gross profit:
Gross margin	17,900,000		19,700,000	35,100,000	37,900,000
Operating expenses:
Research and development	2,400,000		2,400,000	4,900,000	4,800,000
Sales and marketing	2,800,000		2,700,000	5,700,000	5,400,000
General and administrative	10,100,000		10,500,000	19,200,000	21,000,000.0
Impairment of goodwill	73,500,000		0	73,500,000	0
Segment operating profit (loss):
Total segment operating profit	(70,900,000)		4,100,000	(68,200,000)	6,700,000
Expenditures for segment property, plant and equipment
Total expenditures for segment assets	7,100,000		4,700,000	10,300,000	11,000,000.0
Depreciation and amortization
Total depreciation and amortization	6,200,000		6,200,000	12,600,000	12,300,000
Products
Assets	277,000,000.0			277,000,000.0		$ 262,900,000
Segment Reporting, Reconciling Item, Excluding Corporate Nonsegment
Segment operating profit (loss):
Interest income	800,000		1,400,000	1,900,000	2,800,000
Interest expense	(10,100,000)		(11,700,000)	(20,000,000.0)	(23,900,000)
Other income (expense), net	$ (2,200,000)		$ 17,400,000	$ (1,300,000)	$ 13,500,000