Revenue Recognition (Schedule Of Contract Liabilities From Contract With Customers) (Details) $ in Thousands |
6 Months Ended |
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Jun. 30, 2018
USD ($)
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| Organization, Consolidation, And Basis Of Presentation [Abstract] | |
| Contract liabilities at beginning of period | $ 14,417 |
| Increase due to deferral of revenue | 14,357 |
| Decreases due to recognition of revenue | (13,059) |
| Contract liabilities at end of period | $ 15,715 |
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- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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- Definition Contract with Customer, Liability, Increase (Decrease) In Deferred Revenue No definition available.
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- Definition Contract with Customer, Liability, Increase (Decrease) Revenue Recognized No definition available.
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