Fair Value Measurements (Narrative) (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Mar. 31, 2016	Sep. 30, 2012
Sanuk
Contingent consideration
Contingent consideration for acquisition of business	$ 19,700
Hoka | Contingent consideration arrangement
Contingent consideration
Contingent consideration amount paid	1,700
Contingent consideration maximum			$ 2,000
Accrued expenses
Reconciliation of fair value for acquisition of business, categorized as Level 3 of valuation hierarchy
Deferred compensation, current	3,454	$ 308
Accrued expenses | Hoka | Contingent consideration arrangement
Contingent consideration
Contingent liability, current	300
Other noncurrent liabilities
Reconciliation of fair value for acquisition of business, categorized as Level 3 of valuation hierarchy
Deferred compensation liability, noncurrent	$ 3,343	$ 5,993