FINANCIAL STATEMENT POLICIES (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2017	Oct. 01, 2016	Sep. 30, 2017	Oct. 01, 2016
Hedging Instruments
Unrealized net gain on foreign currency forward contracts, if settled			$ (12,100)
Numerator:
Net income (loss) attributable to Fossil Group, Inc.	$ (5,399)	$ 17,356	$ (398,298)	$ 29,170
Denominator:
Basic weighted average common shares outstanding (in shares)	48,521	48,130	48,439	48,127
Basic EPS (in dollars per share)	$ (0.11)	$ 0.36	$ (8.22)	$ 0.61
Diluted EPS computation:
Basic weighted average common shares outstanding (in shares)	48,521	48,130	48,439	48,127
Effect of stock options, stock appreciation rights, restricted stock units and performance restricted stock units (in shares)	0	161	0	159
Diluted weighted average common shares outstanding (in shares)	48,521	48,291	48,439	48,286
Diluted EPS (in dollars per share)	$ (0.11)	$ 0.36	$ (8.22)	$ 0.60
Stock Compensation Plan
Other EPS Disclosures
Weighted shares issuable under stock-based awards not included in the diluted EPS calculation (in shares)	5,100	1,600	4,400	1,500
Performance Shares
Other EPS Disclosures
Weighted shares issuable under stock-based awards not included in the diluted EPS calculation (in shares)	1,200	1,100	1,200	1,100

Unrealized Gain Loss On Foreign Exchange Forward Contracts, If Settled, Recognized In Other Comprehensive Income

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Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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