Restructuring Activities (Details Textuals) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2018 |
Sep. 30, 2017 |
Sep. 30, 2018 |
Sep. 30, 2017 |
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| Restructuring charges | $ 236 | $ 2,178 | $ 2,101 | $ 8,724 |
| Operating Leases, Rent Expense, Sublease Rentals | 600 | 500 | 1,700 | 1,600 |
| Stock Based Compensation [Member] | ||||
| Restructuring charges | $ 400 | 4,900 | ||
| Employee Severance, Excluding Share-based Compensation [Member] | ||||
| Restructuring charges | $ 1,300 | $ 2,800 | ||
| Lease Related Impairment [Member] | ||||
| Restructuring charges | $ 700 | |||
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- Definition The total amount of sublease rental income recognized during the period that reduces the entity's rent expense incurred under operating leases. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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