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)

Accounts Receivable Offset For Aquisitions Adjustment

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- Definition

Allowance For Bad Debts, Foreign Currency Gain

+ References

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- Definition

Reclassification To Leasehold Costs Related To Signing Bonus

+ References

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- Definition

For an unclassified balance sheet, a valuation allowance for receivables due a company that are expected to be uncollectible.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 4
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- 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.

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section S99
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