Acquisition and Divestiture Activities	6 Months Ended
Acquisition and Divestiture Activities	Jul. 01, 2023
Acquisition and Divestiture Activities [Abstract]
Acquisition and Divestiture Activities	Note 2 – Acquisition Activities As part of its growth strategy, the Company seeks to expand through targeted acquisitions of other manufacturers of electronic components. These acquisition targets include businesses that have established positions in major markets, reputations for product quality and reliability, and product lines with which the Company has substantial marketing and technical expertise. It also includes certain businesses that possess technologies which the Company expects to further develop and commercialize. MaxPower Semiconductor, Inc. On October 28, 2022, the Company acquired all of the outstanding equity interests of MaxPower Semiconductor, Inc. ("MaxPower"), a San Jose, California-based fabless power semiconductor provider dedicated to delivering innovative and cost-effective technologies that optimize power management solutions. The acquisition of MaxPower will enhance the Company's current and future silicon carbide ("SiC") offerings for fast-growing markets such as electric vehicles. The Company paid cash of $50,000, net of cash acquired, at closing. Related to the transaction, Vishay may also be required to make certain contingent payments of up to $57,500, which would be payable upon the achievement of certain technology milestones, upon favorable resolution of certain technology licensing matters with a third party, and upon the disposition of MaxPower's investment in an equity affiliate. The purchase price for U.S. GAAP purposes includes the fair value, as of the acquisition date, of certain future contingent payments to non-employee equity holders of MaxPower. The estimated fair value of this contingent consideration as of the acquisition date was $6,851. The contingent consideration liability is included in other accrued expenses and other liabilities in the accompanying balance sheet and is remeasured each reporting period, with changes reported as selling, general, and administrative expenses on the consolidated condensed statement of operations. See Note 13 for further discussion on the fair value measurement. Based on an estimate of their fair values, the Company allocated $18,600 of the purchase price to definite-lived intangible assets. After allocating the purchase price to the assets acquired and liabilities assumed based on a preliminary estimation of their fair values at the date of acquisition, the Company recorded goodwill of $36,885 related to this acquisition. The goodwill related to this acquisition is included in the MOSFETs reporting unit for goodwill impairment testing. The purchase price allocation for this acquisition is considered preliminary as the Company is awaiting further information about the contingent payments. The estimated values of definite-lived intangible assets and goodwill have not changed as of July 1, 2023. The results and operations of this acquisition have been included in the MOSFETs segment since October 28, 2022. Centerline Technologies, LLC On June 30, 2023, the Company acquired substantially all of the assets of Centerline Technologies, LLC ("Centerline"), a Massachusetts-based, privately held manufacturer of ceramic components used in many custom parts manufactured by certain of Vishay's Resistors businesses, for $5,003. Based on an estimate of fair values, the Company allocated $1,500 of the purchase price to definite-lived intangible assets. After allocating the purchase price to the assets acquired and liabilities assumed based on an estimation of their fair values at the date of acquisition, the Company recorded goodwill of $2,213 related to this acquisition. The acquired business will be vertically integrated into the Company's Resistors segment, and the goodwill related to this acquisition is included in the Resistors reporting unit for goodwill impairment testing.