Reportable Operating Segments (Details) $ in Thousands	3 Months Ended
	Jun. 30, 2024 USD ($) segment	Jun. 30, 2023 USD ($)	Mar. 31, 2024 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | segment	6
Net sales	$ 825,347	$ 675,791
Income (loss) from operations	132,807	70,736
Assets	3,306,219		$ 3,135,579
Unallocated cash and cash equivalents	1,438,397		1,502,051
Unallocated deferred tax assets, net	71,613		72,584
Reportable segments
Segment Reporting Information [Line Items]
Assets	1,360,975		1,056,731
Reportable segments | UGG brand wholesale
Segment Reporting Information [Line Items]
Assets	509,965		247,136
Reportable segments | HOKA brand wholesale
Segment Reporting Information [Line Items]
Assets	490,476		436,147
Reportable segments | Teva brand wholesale
Segment Reporting Information [Line Items]
Assets	56,713		81,703
Reportable segments | Sanuk brand wholesale
Segment Reporting Information [Line Items]
Assets	16,955		18,526
Reportable segments | Other brands wholesale
Segment Reporting Information [Line Items]
Assets	24,973		9,379
Reportable segments | Direct-to-Consumer
Segment Reporting Information [Line Items]
Assets	261,893		263,840
Segment reconciling items
Segment Reporting Information [Line Items]
Income (loss) from operations	(143,562)	(116,071)
Unallocated cash and cash equivalents	1,438,397		1,502,051
Unallocated deferred tax assets, net	71,613		72,584
Corporate
Segment Reporting Information [Line Items]
Unallocated other corporate assets	435,234		$ 504,213
Wholesale | UGG brand wholesale
Segment Reporting Information [Line Items]
Net sales	142,553	121,545
Wholesale | HOKA brand wholesale
Segment Reporting Information [Line Items]
Net sales	332,732	260,847
Wholesale | Teva brand wholesale
Segment Reporting Information [Line Items]
Net sales	31,359	35,132
Wholesale | Sanuk brand wholesale
Segment Reporting Information [Line Items]
Net sales	4,433	6,470
Wholesale | Other brands wholesale
Segment Reporting Information [Line Items]
Net sales	3,705	1,427
Wholesale | Reportable segments | UGG brand wholesale
Segment Reporting Information [Line Items]
Income (loss) from operations	38,430	16,866
Wholesale | Reportable segments | HOKA brand wholesale
Segment Reporting Information [Line Items]
Income (loss) from operations	124,694	86,524
Wholesale | Reportable segments | Teva brand wholesale
Segment Reporting Information [Line Items]
Income (loss) from operations	6,789	9,237
Wholesale | Reportable segments | Sanuk brand wholesale
Segment Reporting Information [Line Items]
Income (loss) from operations	1,603	759
Wholesale | Reportable segments | Other brands wholesale
Segment Reporting Information [Line Items]
Income (loss) from operations	(1,557)	(2,041)
Direct-to-Consumer | Direct-to-Consumer
Segment Reporting Information [Line Items]
Net sales	310,565	250,370
Direct-to-Consumer | Reportable segments | Direct-to-Consumer
Segment Reporting Information [Line Items]
Income (loss) from operations	$ 106,410	$ 75,462