REPORTABLE OPERATING SEGMENTS (Details) $ in Thousands	3 Months Ended		4 Months Ended	9 Months Ended
	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2024 USD ($) segment	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Mar. 31, 2024 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | segment			5
Net sales	$ 1,827,165	$ 1,560,307		$ 3,963,832	$ 3,328,005
Income (loss) from operations	567,274	487,899		1,005,167	783,252
Assets	3,964,353		$ 3,964,353	3,964,353		$ 3,135,579
Unallocated cash and cash equivalents	2,240,923		2,240,923	2,240,923		1,502,051
Unallocated deferred tax assets, net	65,377		65,377	65,377		72,584
Reportable segments
Segment Reporting Information [Line Items]
Assets	1,195,266		1,195,266	1,195,266		1,056,731
Reportable segments | UGG brand wholesale
Segment Reporting Information [Line Items]
Net sales	467,998	402,876		1,122,952	976,262
Income (loss) from operations	190,888	153,653		424,812	336,421
Assets	357,634		357,634	357,634		247,136
Reportable segments | HOKA brand wholesale
Segment Reporting Information [Line Items]
Net sales	305,241	252,222		1,000,317	776,042
Income (loss) from operations	84,052	83,654		324,687	252,051
Assets	464,046		464,046	464,046		436,147
Reportable segments | Teva brand wholesale
Segment Reporting Information [Line Items]
Net sales	18,853	20,449		62,344	67,731
Income (loss) from operations	(738)	2,047		4,835	10,637
Assets	54,354		54,354	54,354		81,703
Reportable segments | Other brands wholesale
Segment Reporting Information [Line Items]
Net sales	23,736	26,614		58,650	67,721
Income (loss) from operations	5,350	(1,365)		4,161	3,509
Assets	12,224		12,224	12,224		27,905
Reportable segments | Direct-to-Consumer
Segment Reporting Information [Line Items]
Net sales	1,011,337	858,146		1,719,569	1,440,249
Income (loss) from operations	481,021	401,075		730,878	588,792
Assets	307,008		307,008	307,008		263,840
Unallocated
Segment Reporting Information [Line Items]
Income (loss) from operations	(193,299)	$ (151,165)		(484,206)	$ (408,158)
Unallocated cash and cash equivalents	2,240,923		2,240,923	2,240,923		1,502,051
Unallocated deferred tax assets, net	65,377		65,377	65,377		72,584
Corporate
Segment Reporting Information [Line Items]
Unallocated other corporate assets	$ 462,787		$ 462,787	$ 462,787		$ 504,213