Acquisition and Divestiture	6 Months Ended
Acquisition and Divestiture	Jul. 31, 2022
Discontinued Operations and Disposal Groups [Abstract]
Acquisition and Divestiture	Divestiture Proposed Transaction with Sierra Wireless, Inc. Arrangement Agreement On August 2, 2022, the Company entered into an Arrangement Agreement (the “Arrangement Agreement”) with Sierra Wireless, Inc., a corporation existing under the Canada Business Corporations Act (“Sierra Wireless”), and 13548597 Canada Inc., a corporation formed under the Canada Business Corporations Act, and the Company's wholly owned subsidiary (“Purchaser”), pursuant to which, among other things, Purchaser will acquire all of the issued and outstanding common shares of Sierra Wireless (the “Arrangement”). The Arrangement will be implemented by way of a plan of arrangement (the “Plan of Arrangement”) in accordance with the Canada Business Corporations Act. On the terms and subject to the conditions of the Arrangement Agreement and the Plan of Arrangement, at the effective time of the Arrangement (the “Effective Time”), each common share of Sierra Wireless that is issued and outstanding immediately prior to the Effective Time will be transferred to the Purchaser in consideration for the right to receive $31.00 USD per share of Sierra Wireless’ common shares, in an all-cash transaction representing total purchase consideration of approximately $1.2 billion. The closing of the Arrangement is subject to customary closing conditions, including: (i) approval by the securityholders of Sierra Wireless; (ii) receipt of applicable regulatory approvals, including approvals under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended (the “HSR Act”), from the Federal Trade Commission and the U.S. Department of Justice and approval under the Competition Act (Canada); (iii) approval by the Supreme Court of British Columbia; (iv) the absence of any law, injunction or other governmental order that prohibits the consummation of the Arrangement; and (v) other customary closing conditions, including the accuracy of the other party’s representations and warranties (subject to certain materiality qualifications), and each party’s compliance with its covenants and agreements contained in the Arrangement Agreement. Assuming the timely satisfaction of the conditions to closing, the Company expects the Arrangement will close during its fiscal year 2023. Until close, the Company and Sierra Wireless will remain separate independent companies. Divestiture On May 3, 2022, the Company completed the divestiture of its high reliability discrete diodes and assemblies business (the “Disposal Group”) to Micross Components, Inc. for $26.8 million, net of cash disposed, in an all-cash transaction. The divestiture resulted in a gain of $18.0 million for the three and six months ended July 31, 2022, which was recorded in "Gain on sale of business" in the Statements of Income. As a result of the transaction, the Company disposed of $0.8 million of goodwill based on the relative fair value of the Disposal Group and the portion of the Wireless and Sensing reporting unit that will be retained. The estimated fair value of the Disposal Group less estimated costs to sell exceeded its carrying amount as of the transaction date. As the sale of the Disposal Group is not considered a strategic shift that will have a major effect on the Company’s operations or financial results, it is not reported as discontinued operations.