Discontinued Operations and Assets Held for Sale - Summarized operating results of the Discontinued Operations (Details) - Discontinued Operations - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenues	$ 33,246	$ 223,340
Depreciation and amortization	0	435
Share-based compensation expense	3	162
Loss on impairment of assets	0	0
Other direct costs	27,548	152,437
Operating income	5,695	70,306
Other non-operating (loss) income	(8,017)	3,164
Pretax (loss) income of discontinued operations	(2,322)	73,470
Income tax expense	1,482	10,141
(Loss) income from discontinued operations, net of tax	(3,804)	63,329
Operating cash flows of discontinued operations	5,911	19,197
Investing cash flows of discontinued operations	(200)	(7,873)
Financing cash flows of discontinued operations	$ (691)	$ (15,507)

Disposal Group, Including Discontinued Operation, Asset Impairment Charges

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Disposal Group, Including Discontinued Operation, Nonoperating Income (Expense)

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Disposal Group Including Discontinued Operation, Share-Based Compensation Expense

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Amount of cash inflow (outflow) of financing activities of discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.

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Amount of cash inflow (outflow) of investing activities of discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.

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Amount of cash inflow (outflow) of operating activities of discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.

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Amount before tax of income (loss) from a discontinued operation. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

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Amount of tax expense (benefit) attributable to income (loss) from operations classified as a discontinued operation. Excludes tax expense (benefit) for gain (loss) on disposal and for provision for gain (loss) until disposal.

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Amount after tax of income (loss) from a discontinued operation including the portion attributable to the noncontrolling interest. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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