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Goodwill and Other Intangible Assets Narrative (Details) - USD ($)	3 Months Ended	12 Months Ended
	Dec. 31, 2016	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2017
Goodwill [Line Items]
Finite-lived intangible asset useful life		15 years	15 years
Goodwill and intangible asset impairment		$ 0	$ 0
Goodwill, gross		143,765,000	143,765,000
Goodwill accumulated impairment		129,775,000	129,775,000
Impairment of goodwill		0	0	$ 113,944,000
Impairment of intangible assets (excluding goodwill)		0	0
Amortization expense		$ 6,235,000	$ 7,807,000
Sanuk
Goodwill [Line Items]
Impairment of goodwill	$ 113,944,000
Patents \| Sanuk
Goodwill [Line Items]
Impairment of intangible assets (excluding goodwill)	4,086,000
European Retail \| Direct-to-Consumer
Goodwill [Line Items]
Impairment of intangible assets (excluding goodwill)	$ 4,743,000