Identified Intangible Assets and Goodwill, Net (Details) - USD ($) $ in Thousands	Sep. 27, 2025	Dec. 31, 2024	Dec. 31, 2023
Finite-Lived Intangible Assets [Line Items]
Identified intangible assets, gross	$ 74,574	$ 71,058
Accumulated amortization	56,573	52,757
Identified intangible assets, net	18,001	18,301
Goodwill	97,761	94,879	$ 84,800
Customer lists/relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Identified intangible assets, gross	46,636	43,713
Accumulated amortization	34,710	32,452
Employment-related [Member]
Finite-Lived Intangible Assets [Line Items]
Identified intangible assets, gross	14,100	13,880
Accumulated amortization	11,903	11,127
Tradenames [Member]
Finite-Lived Intangible Assets [Line Items]
Identified intangible assets, gross	13,838	13,465
Accumulated amortization	$ 9,960	$ 9,178