Quarterly report pursuant to Section 13 or 15(d)

Organization And Accounting Policies (Rollforward Analysis Of The Allowance Against Accounts Receivable Balance) (Details)

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Organization And Accounting Policies (Rollforward Analysis Of The Allowance Against Accounts Receivable Balance) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Organization And Accounting Policies [Abstract]        
Balance at beginning of period $ (6,948) $ (5,874) $ (7,033) $ (5,211)
Bad debt recovery (charge) 159 49 68 (232)
Reclassification to leasehold costs related to signing bonus 4,197   4,197  
Reclassification related to Sojitz acquisition   (694)   (694)
Foreign currency gain (loss) 11 (201) 187 (583)
Balance at end of period $ (2,581) $ (6,720) $ (2,581) $ (6,720)