RESTRUCTURING - Liability Incurred for Restructuring Plan (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Apr. 05, 2025	Mar. 30, 2024	Dec. 28, 2024
Restructuring Reserve
Charges	$ 15,821	$ 10,053
Turnaround Plan
Restructuring Reserve
Beginning balance	0
Charges	15,821		$ 7,000
Cash Payments	3,079
Non-cash Items	59
Ending balance	12,683		0
Turnaround Plan \| Store closures
Restructuring Reserve
Beginning balance	0
Charges	10
Cash Payments	0
Non-cash Items	10
Ending balance	0		0
Turnaround Plan \| Professional services
Restructuring Reserve
Beginning balance	0
Charges	6,485
Cash Payments	1,145
Non-cash Items	0
Ending balance	5,340		0
Turnaround Plan \| Severance and employee-related benefits
Restructuring Reserve
Beginning balance	0
Charges	9,326
Cash Payments	1,934
Non-cash Items	49
Ending balance	7,343		0
TAG Plan
Restructuring Reserve
Beginning balance	17,143	12,055	12,055
Charges		9,812
Cash Payments	13,242	12,325
Non-cash Items		101
Ending balance	3,901	9,441	17,143
TAG Plan \| Store closures
Restructuring Reserve
Beginning balance	1	0	0
Charges		108
Cash Payments	1	6
Non-cash Items		101
Ending balance	0	1	1
TAG Plan \| Professional services
Restructuring Reserve
Beginning balance	9,501	117	117
Charges		2,484
Cash Payments	6,529	2,390
Non-cash Items		0
Ending balance	2,972	211	9,501
TAG Plan \| Severance and employee-related benefits
Restructuring Reserve
Beginning balance	7,341	8,117	8,117
Charges		7,461
Cash Payments	6,712	7,099
Non-cash Items		0
Ending balance	629	8,479	7,341
TAG Plan \| Charges related to exits of certain product offerings
Restructuring Reserve
Beginning balance	300	3,821	3,821
Charges		(241)
Cash Payments	0	2,830
Non-cash Items		0
Ending balance	$ 300	$ 750	$ 300

Fossil Group, Inc. 10-Q