Reportable Segments - Schedule of Reconciliation of Total Reportable Segments' Revenues and EBITDA to Consolidated Revenues and Consolidated Income Before Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 28, 2025	Sep. 29, 2024	Sep. 28, 2025	Sep. 29, 2024
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenues	$ 698,221	$ 654,926	$ 1,995,074	$ 1,794,937
Depreciation expense	(16,900)	(14,700)	(46,400)	(41,700)
Amortization of intangibles	(13,636)	(13,738)	(40,381)	(34,487)
Operating income	76,288	75,349	228,150	197,281
Interest expense, net	(11,562)	(10,855)	(33,866)	(27,454)
Loss related to revolver refinancing	(76)	0	(76)	0
Total non-operating pension benefit (cost)	(398)	286	(1,203)	747
Income before taxes	64,252	64,780	193,005	170,574
Reportable Segment
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenues	698,221	654,926	1,995,074	1,794,937
Segment EBITDA	119,096	112,266	338,026	295,992
Depreciation expense	(16,856)	(14,655)	(46,406)	(41,697)
Amortization of intangibles	(13,636)	(13,738)	(40,381)	(34,487)
Severance, restructuring, and acquisition integration costs	(9,178)	(5,263)	(13,715)	(13,468)
Amortization of software development intangible assets	(3,072)	(2,678)	(8,628)	(7,855)
Adjustments related to acquisitions and divestitures	(11)	(561)	(595)	(1,157)
Operating income	76,288	75,349	228,150	197,281
Intersegment Eliminations
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating income	$ (55)	$ (22)	$ (151)	$ (47)