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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 |  |  |

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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Total loss recognized during the period from the impairment of goodwill plus the loss recognized in the period resulting from the impairment of the carrying amount of intangible assets, other than goodwill. + References No definition available. + Details
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