Segment and Geographic Information - Operating Segment Data (Details) - USD ($) $ in Thousands	3 Months Ended								6 Months Ended		9 Months Ended		12 Months Ended
	Jan. 31, 2025	Oct. 31, 2024	Jul. 31, 2024	Apr. 30, 2024	Jan. 31, 2024	Oct. 31, 2023	Jul. 31, 2023	Apr. 30, 2023	Jul. 31, 2024	Jul. 31, 2023	Oct. 31, 2024	Oct. 31, 2023	Jan. 31, 2025		Jan. 31, 2024		Jan. 31, 2023
Operating segment data
Net sales	$ 181,475	$ 180,524	$ 157,000	$ 134,379	$ 175,753	$ 184,072	$ 158,020	$ 146,544	$ 291,379	$ 304,564	$ 471,903	$ 488,636	$ 653,378	[1],[2],[3]	$ 664,389	[1],[2]	$ 744,209	[1],[2]
Cost of sales		83,894	71,748	61,459	81,659	84,270	70,490	63,811	133,207	134,301	217,101	218,571	300,238	[2],[3]	300,230	[2]	315,081	[2]
Gross profit	98,338	96,630	85,252	72,920	94,094	99,802	87,530	82,733	158,172	170,263	254,802	270,065	353,140	[2],[3]	364,159	[2]	429,128	[2]
Selling, general and administrative		90,597	82,610	70,802	83,311	81,636	79,638	71,104	153,412	150,742	244,009	232,378	333,125	[2],[3]	315,689	[2]	313,541	[2]
Operating income	9,222	6,033	2,642	2,118	10,783	18,166	7,892	11,629	4,760	19,521	10,793	37,687	20,015	[2],[3]	48,470	[2]	115,587	[2]
Other income, net		1,522	1,877	2,172	1,800	1,632	1,537	1,025	4,049	2,562	5,571	4,194	7,125	[2],[3]	5,994	[2]	2,069	[2]
Interest expense		(144)	(110)	(118)	(136)	(135)	(113)	(113)	(228)	(226)	(372)	(361)	(489)	[2],[3]	(497)	[2]	(518)	[2]
Income before income taxes		7,411	4,409	4,172	12,447	19,663	9,316	12,541	8,581	21,857	15,992	41,520	26,651	[2],[3]	53,967	[2]	117,138	[2]
Depreciation and amortization				2,288				2,557	4,582	5,039	6,960	7,278	9,312	[2],[3]	9,644	[2]	10,809	[2]
Total Assets	729,231	$ 747,152	$ 742,480	$ 735,995	756,498	$ 753,479	$ 742,289	$ 735,833	$ 742,480	$ 742,289	$ 747,152	$ 753,479	729,231		756,498
Capital Expenditure													7,966		8,223		7,085
Watch and Accessory Brands
Operating segment data
Net sales													556,386		560,454		632,650
Cost of sales													261,774		259,269		274,011
Gross profit													294,612		301,185		358,639
Selling, general and administrative													286,874		269,882		268,369
Operating income													7,738		31,303		90,270
Depreciation and amortization													7,096		7,266		8,233
Total Assets	668,403				697,483								668,403		697,483
Capital Expenditure													5,740		7,784		4,323
Watch and Accessory Brands | Operating Segments
Operating segment data
Net sales													556,386		560,454		632,650
Watch and Accessory Brands | Owned brands category
Operating segment data
Net sales													183,622		198,612		230,277
Watch and Accessory Brands | Licensed brands category
Operating segment data
Net sales													365,216		354,099		391,867
Watch and Accessory Brands | After-sales service and all other
Operating segment data
Net sales													7,548		7,743		10,506
Company Stores
Operating segment data
Net sales													96,992		103,935		111,559
Cost of sales													38,464		40,961		41,070
Gross profit													58,528		62,974		70,489
Selling, general and administrative													46,251		45,807		45,172
Operating income													12,277		17,167		25,317
Depreciation and amortization													2,216		2,378		2,576
Total Assets	$ 60,828				$ 59,015								60,828		59,015
Capital Expenditure													$ 2,226		$ 439		$ 2,762

[1] The United States and International net sales in the Watch and Accessory Brands segment are net of intercompany sales of $287.6 million, $260.1 million and $350.5 million for the fiscal years ended January 31, 2025, 2024 and 2023, respectively.

[2] The operating income in the Watch and Accessory Brands segment included $30.0 million, $30.8 million and $37.0 million of unallocated corporate expenses for the fiscal years ended January 31, 2025, 2024 and 2023, respectively, and $67.0 million, $71.5 million and $81.0 million of certain intercompany profits related to the Company's supply chain operations for the fiscal years ended January 31, 2025, 2024 and 2023, respectively.

[3] The operating income in the Watch and Accessory Brands segment included a pre-tax charge of $4.6 million related to the Company's cost-savings initiative for the fiscal year ended January 31, 2025 and a pre-tax charge of $2.5 million of professional fees related to the investigation of allegations of misconduct within the Dubai branch of the Company's Swiss subsidiary.