Revenues (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Revenues [Abstract]
Retained Earnings (Accumulated Deficit), Total	$ (383,347)		$ (383,347)		$ (234,723)
Accounts receivable, net	41,409		41,409		49,600
Noncontrolling interest	60,068		60,068		70,726
Deferred income taxes	15,438		15,438		$ 32,064
Net revenue	25,392	$ 29,455	77,331	$ 92,044
Benefit for income taxes	$ (6,035)	$ (8,808)	$ (6,655)	$ (9,289)

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.

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Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences without jurisdictional netting.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest).

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