Stockholders' Equity Attributable to Controlling and Noncontrolling Interest [Roll Forward]

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Amount of increase (decrease) in additional paid in capital (APIC) resulting from a tax benefit (deficiency) associated with an share-based compensation plan other than an employee stock ownership plan (ESOP).

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Amount of increase to additional paid-in capital (APIC) from recognition of equity-based compensation.

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Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption.

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Amount of cumulative tax effect on beginning retained earnings from change in accounting principle.

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Decrease in noncontrolling interest balance from payment of dividends or other distributions by the non-wholly owned subsidiary or partially owned entity, included in the consolidation of the parent entity, to the noncontrolling interest holders.

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Amount after tax and reclassification adjustments, of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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Gross value of stock (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP). Stock issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans.

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Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.

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STOCKHOLDERS' EQUITY (Controlling and Noncontrolling Interest) (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
	Jan. 01, 2018	Jun. 30, 2018	Jul. 01, 2017	Jun. 30, 2018	Jul. 01, 2017
Stockholders' Equity Attributable to Controlling and Noncontrolling Interest [Roll Forward]
Beginning balance				$ 580,947	$ 1,015,438
Net Income (loss)		$ (7,237)	$ (343,099)	(54,742)	(389,888)
Cumulative Effect of New Accounting Principle in Period of Adoption	$ (26,542)
Currency translation adjustment				(6,756)	26,856
Cash flow hedges - net change		14,350	(9,592)	13,193	(11,593)
Common stock issued upon exercise of stock options				185
Distribution of noncontrolling interest earnings and other				(4,224)	(427)
Net settlement of restricted stock units and preferred stock units to satisfy employee tax withholding upon vesting				(1,925)	(907)
Stock-based compensation expense				16,711	15,335
Ending balance		516,847	654,814	516,847	654,814
Cumulative effect on retained earnings, tax	1,100
Fossil Group, Inc. Stockholders’ Equity
Stockholders' Equity Attributable to Controlling and Noncontrolling Interest [Roll Forward]
Beginning balance				576,133	1,006,236
Net Income (loss)				(56,073)	(392,898)
Cumulative Effect of New Accounting Principle in Period of Adoption	(26,542)
Currency translation adjustment				(6,756)	26,856
Cash flow hedges - net change				13,193	(11,593)
Common stock issued upon exercise of stock options				185
Distribution of noncontrolling interest earnings and other				42	0
Net settlement of restricted stock units and preferred stock units to satisfy employee tax withholding upon vesting				(1,925)	(907)
Stock-based compensation expense				16,711	15,335
Ending balance		514,968	643,029	514,968	643,029
Noncontrolling Interest
Stockholders' Equity Attributable to Controlling and Noncontrolling Interest [Roll Forward]
Beginning balance				4,814	9,202
Net Income (loss)				1,331	3,010
Cumulative Effect of New Accounting Principle in Period of Adoption	$ 0
Currency translation adjustment				0	0
Cash flow hedges - net change				0	0
Common stock issued upon exercise of stock options				0
Distribution of noncontrolling interest earnings and other				(4,266)	(427)
Net settlement of restricted stock units and preferred stock units to satisfy employee tax withholding upon vesting				0	0
Stock-based compensation expense				0	0
Ending balance		$ 1,879	$ 11,785	$ 1,879	$ 11,785