Restructuring - Schedule of Restructuring by Segment (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 29,087	$ 24,856	$ 0
Brand Realignment
Restructuring Cost and Reserve [Line Items]
Restructuring costs	29,100	24,800
Reportable segments | UGG brand wholesale | Brand Realignment
Restructuring Cost and Reserve [Line Items]
Restructuring costs	2,100	0
Reportable segments | Teva brand wholesale | Brand Realignment
Restructuring Cost and Reserve [Line Items]
Restructuring costs	0	0
Reportable segments | Sanuk brand wholesale | Brand Realignment
Restructuring Cost and Reserve [Line Items]
Restructuring costs	100	3,000
Reportable segments | Other brands wholesale | Brand Realignment
Restructuring Cost and Reserve [Line Items]
Restructuring costs	100	2,500
Reportable segments | Direct-to-Consumer | Brand Realignment
Restructuring Cost and Reserve [Line Items]
Restructuring costs	12,900	10,500
Unallocated to Segments | Brand Realignment
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 13,900	$ 8,800