Business Segments (Wholesale Operations) (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Mar. 31, 2016
Business segment information          
Net sales to external customers $ 485,944 $ 486,855 $ 660,337 $ 700,660  
Income (loss) from operations 54,023 51,213 (24,296) (12,495)  
Total assets for reportable segments 1,572,601   1,572,601   $ 1,278,068
Reportable segments          
Business segment information          
Total assets for reportable segments 1,172,137   1,172,137   762,783
UGG wholesale          
Business segment information          
Net sales to external customers 337,852 344,659 383,753 411,081  
Income (loss) from operations 112,510 116,794 102,298 113,414  
Total assets for reportable segments 731,318   731,318   248,937
Teva wholesale          
Business segment information          
Net sales to external customers 12,246 14,103 41,771 51,169  
Income (loss) from operations (2,121) (442) (259) 5,432  
Total assets for reportable segments 45,186   45,186   87,225
Sanuk wholesale          
Business segment information          
Net sales to external customers 15,030 13,324 37,333 41,837  
Income (loss) from operations (211) (23) 3,970 5,325  
Total assets for reportable segments 188,538   188,538   212,816
Other brands wholesale          
Business segment information          
Net sales to external customers 34,830 28,153 53,241 49,538  
Income (loss) from operations 2,362 283 732 (3,717)  
Total assets for reportable segments 67,742   67,742   65,072
Direct-to-Consumer          
Business segment information          
Net sales to external customers 85,986 86,616 144,239 147,035  
Income (loss) from operations (6,092) (9,607) (25,511) (24,812)  
Total assets for reportable segments 139,353   139,353   $ 148,733
Unallocated to segments          
Business segment information          
Income (loss) from operations $ (52,425) $ (55,792) $ (105,526) $ (108,137)