Acquisitions	9 Months Ended
Acquisitions	Oct. 02, 2021
Business Combination and Asset Acquisition [Abstract]
Acquisitions	Acquisitions On August 1, 2021, Snap-on acquired AutoCrib EMEA GmbH (“AutoCrib Germany”), a former independent distributor, for a cash purchase price of $4.4 million (or $4.2 million, net of cash acquired). AutoCrib Germany, based in Hamburg, Germany, distributes asset and tool control solutions for a variety of aerospace, automotive, military, natural resources and general industry operations. In the third quarter of 2021, the company recorded, on a preliminary basis, the $3.3 million excess of the purchase price over the fair value of the net assets acquired in “Goodwill” on the accompanying Condensed Consolidated Balance Sheets. The company anticipates completing the purchase accounting for the acquired net assets of AutoCrib Germany in the first half of 2022. On July 1, 2021, Snap-on exchanged its 35% equity interest in Deville S.A., valued at $21.8 million, for 100% ownership of Secateurs Pradines (“Pradines”), a wholly owned subsidiary of Deville S.A. with a fair value of $20.7 million (or $16.2 million, net of cash acquired), and cash of $1.1 million, which reflects a $0.7 million working capital adjustment finalized in the third quarter of 2021. Pradines, located in Bauge-en-Anjou, France, designs and manufactures horticultural hand tools for professionals and individuals. In 2021, the company recorded, on a preliminary basis, the $10.7 million excess of the purchase price over the fair value of net assets acquired in “Goodwill” in the accompanying Condensed Consolidated Balance Sheets. The company anticipates completing the purchase accounting for the acquired net assets of Pradines in the first half of 2022. On February 26, 2021, Snap-on acquired Dealer-FX Group, Inc. (“Dealer-FX”) for a cash purchase price of $200.1 million (or $200.0 million, net of cash acquired). Dealer-FX, based in Markham, Ontario, is a leading developer, marketer and provider of service operations software solutions for automotive OEM customers and their dealers. Dealer-FX specializes in software as a service (SaaS) management systems, communications platforms, extensive data integrations, and offers a digitalized solution that increases productivity and enhances the vehicle owners’ experience. In the first quarter of 2021, the company recorded, on a preliminary basis, the $195.2 million excess of the purchase price over the fair value of the net assets acquired in “Goodwill” on the accompanying Condensed Consolidated Balance Sheets. The company anticipates completing the purchase accounting for the acquired net assets of Dealer-FX in 2021. On September 28, 2020, Snap-on acquired substantially all of the assets of AutoCrib, Inc. (“AutoCrib”) for a cash purchase price of $35.4 million. AutoCrib, based in Tustin, California, designs, manufactures and markets asset and tool control solutions for a variety of aerospace, automotive, military, natural resources and general industry operations. In the first quarter of 2021, the company completed the purchase accounting valuations for the acquired net assets of AutoCrib, including intangible assets. The $18.3 million excess of the purchase price over the fair value of the net assets acquired was recorded in “Goodwill” on the accompanying Condensed Consolidated Balance Sheets. On January 31, 2020, Snap-on acquired substantially all of the assets related to the TreadReader product line from Sigmavision Limited (“Sigmavision”), for a cash purchase price of $5.9 million. Sigmavision designs and manufactures handheld devices and drive-over ramps that provide tire information for use in the automotive industry. The company completed the purchase accounting valuations for the acquired net assets of Sigmavision, including intangible assets, in the second quarter of 2020. The $5.6 million excess of the purchase price over the fair value of the net assets acquired was recorded in “Goodwill” on the accompanying Condensed Consolidated Balance Sheets. For segment reporting purposes, the results of operations and assets of Dealer-FX and Sigmavision have been included in the Repair Systems & Information Group since the respective acquisition dates, and the results of operations and assets of AutoCrib Germany, Pradines and AutoCrib have been included in the Commercial & Industrial Group since the respective acquisition dates. Pro forma financial information has not been presented for these acquisitions as the net effects were neither significant nor material to Snap-on’s results of operations or financial position. See Note 6 for further information on goodwill and other intangible assets.