Description of the Business	12 Months Ended
Dec. 26, 2020
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Description of the Business	1. Description of the Business Garmin Ltd. and subsidiaries (together, the “Company”) design, develop, manufacture, market, and distribute a diverse family of hand-held, wrist-based, portable, and fixed-mount Global Positioning System (GPS)-enabled products and other navigation, communications, information and sensor-based products. Garmin Corporation (GC) is primarily responsible for the manufacturing and distribution of the Company’s products to the Company’s subsidiaries and, to a lesser extent, new product development and sales and marketing of the Company’s products in Asia and the Far East. Garmin International, Inc. (GII) is primarily responsible for sales and marketing of the Company’s products in the Americas region and for most of the Company’s research and new product development. GII also manufactures most of the Company’s products in the aviation segment. Garmin (Europe) Ltd. (GEL) is responsible for sales and marketing of the Company’s products in Europe, the Middle East and Africa (EMEA). Many of GEL’s sales are to other Company-owned distributors in the EMEA region.

The entire disclosure for the nature of an entity's business, major products or services, principal markets including location, and the relative importance of its operations in each business and the basis for the determination, including but not limited to, assets, revenues, or earnings. For an entity that has not commenced principal operations, disclosures about the risks and uncertainties related to the activities in which the entity is currently engaged and an understanding of what those activities are being directed toward.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e5967-108592

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-URI http://asc.fasb.org/topic&trid=2134479

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