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Goodwill and Other Intangible Assets (Details 1) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($)
Goodwill |  |
Goodwill impairment | $ 0 | $ 34,510
Accumulated goodwill impairment loss | 283,100 | 283,100
Finite-lived intangible assets, amortization | $ 100 | $ 700
Minimum |  |
Goodwill |  |
Finite-lived intangible asset, useful life |  | 2 years
Maximum |  |
Goodwill |  |
Finite-lived intangible asset, useful life |  | 10 years
Discount rate |  |
Goodwill |  |
Measurement input |  | 0.140

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