CONDENSED CONSOLIDATED STATEMENTS OF INCOME (LOSS) AND COMPREHENSIVE INCOME (LOSS) (UNAUDITED) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Apr. 04, 2020	Mar. 30, 2019
Income Statement [Abstract]
Net sales	$ 390,718	$ 465,268
Cost of sales	250,358	217,341
Gross profit	140,360	247,927
Operating expenses:
Selling, general and administrative expenses	262,862	257,684
Trade name impairments	2,464	0
Restructuring charges	9,375	10,187
Total operating expenses	274,701	267,871
Operating income (loss)	(134,341)	(19,944)
Interest expense	7,464	8,122
Other income (expense) - net	(7,290)	25,912
Income (loss) before income taxes	(149,095)	(2,154)
Provision for income taxes	(63,651)	9,608
Net income (loss)	(85,444)	(11,762)
Less: Net income attributable to noncontrolling interests	137	480
Net income (loss) attributable to Fossil Group, Inc.	(85,581)	(12,242)
Other comprehensive income (loss), net of taxes:
Currency translation adjustment	(11,193)	(2,490)
Cash flow hedges - net change	6,242	(1,009)
Total other comprehensive income (loss)	(4,951)	(3,499)
Total comprehensive income (loss)	(90,395)	(15,261)
Less: Comprehensive income attributable to noncontrolling interests	137	480
Comprehensive income (loss) attributable to Fossil Group, Inc.	$ (90,532)	$ (15,741)
Earnings (loss) per share:
Basic (in dollars per share)	$ (1.69)	$ (0.25)
Diluted (in dollars per share)	$ (1.69)	$ (0.25)
Weighted average common shares outstanding:
Basic (in shares)	50,566	49,618
Diluted (in shares)	50,566	49,618