Organization And Accounting Policies (Rollforward Analysis Of The Allowance Against Accounts Receivable Balance) (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2018 |
Jun. 30, 2017 |
Jun. 30, 2018 |
Jun. 30, 2017 |
|
| Organization And Accounting Policies [Abstract] | ||||
| Balance at beginning of period | $ (7,164) | $ (5,399) | $ (7,033) | $ (5,211) |
| Charge to costs and expenses | (145) | (183) | (89) | (281) |
| Foreign currency gain (loss) | 361 | (292) | 174 | (382) |
| Balance at end of period | $ (6,948) | $ (5,874) | $ (6,948) | $ (5,874) |
| X | ||||||||||
- Definition Allowance For Bad Debts, Foreign Currency Gain No definition available.
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition For an unclassified balance sheet, a valuation allowance for receivables due a company that are expected to be uncollectible. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of expense related to write-down of receivables to the amount expected to be collected. Includes, but is not limited to, accounts receivable and notes receivable. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|