Share-Based Compensation (Schedule of Unrecognized Compensation Cost) (Details) - USD ($) $ in Thousands |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
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| RSU equity awards | |||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Unrecognized compensation cost related to unvested awards | $ 15,720 | $ 13,158 | $ 7,276 |
| Cash-settleable RSU awards | |||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Unrecognized compensation cost related to unvested awards | $ 1,822 | $ 3,776 | $ 8,948 |
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- Definition Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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