FAIR VALUE MEASUREMENTS (Details) - EBP 002 - USD ($)	Dec. 31, 2025	Dec. 31, 2024
EBP, Investment, Fair Value and NAV [Line Items]
Total	$ 125,902,912	$ 119,349,201
Common Stock - Fossil Group Inc.
EBP, Investment, Fair Value and NAV [Line Items]
Total	1,386,744	605,231
Mutual Funds
EBP, Investment, Fair Value and NAV [Line Items]
Total	105,896,839	100,474,185
Level 1
EBP, Investment, Fair Value and NAV [Line Items]
Total	107,283,583	101,079,416
Level 1 \| Common Stock - Fossil Group Inc.
EBP, Investment, Fair Value and NAV [Line Items]
Total	1,386,744	605,231
Level 1 \| Mutual Funds
EBP, Investment, Fair Value and NAV [Line Items]
Total	105,896,839	100,474,185
NAV
EBP, Investment, Fair Value and NAV [Line Items]
Total	$ 18,619,329	$ 18,269,785

Fair value of investment, excluding plan interest in master trust, held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Includes, but is not limited to, derivative, investment measured at net asset value per share as practical expedient, and insurance contract not meeting fully-benefit responsive investment criteria.

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+ Details

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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