Receivables (Schedule of Related Party Receivables) (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Receivables [Abstract]
Related party receivables	$ 12,197	$ 12,375
Allowance for doubtful accounts	(9,887)	(9,034)
Related party receivables, net	2,310	3,341
Notes receivable from related parties	13,403	13,403
Allowance for doubtful accounts	(13,403)	(13,403)
Notes receivable from related parties, net	0	0
Related party receivables, net	$ 2,310	$ 3,341

Accounts Receivable, Allowance For Doubtful Accounts, Related Parties, Current

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Accounts Receivable, Related Parties, Net, Current

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Notes Receivable, Allowance For Doubtful Accounts, Related Parties

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Notes Receivable, Related Parties, Net

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Amount of receivables arising from transactions with related parties due within one year or the normal operating cycle, if longer.

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For an unclassified balance sheet, amounts due from related parties including affiliates, employees, joint ventures, officers and stockholders, immediate families thereof, and pension funds.

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Amounts due from parties associated with the reporting entity as evidenced by a written promise to pay, due within 1 year (or 1 business cycle).

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