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Segment Information - Reportable Segment Revenue, Income (Loss) Before Income Taxes, (Provision) Benefit for Income Taxes and Net Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Segment Reporting Information [Line Items]
Revenues	$ 3,005,689	$ 2,943,462	$ 5,814,065	$ 5,803,488
Income (loss) before income taxes	63,233	75,188	115,409	121,355
U.S.
Segment Reporting Information [Line Items]
Revenues	2,278,680	2,168,001	4,341,462	4,256,487
Income (loss) before income taxes	63,843	68,942	110,210	109,452
U.K.
Segment Reporting Information [Line Items]
Revenues	614,434	666,883	1,256,592	1,327,425
Income (loss) before income taxes	(1,540)	6,016	4,704	11,753
Brazil
Segment Reporting Information [Line Items]
Revenues	112,575	108,578	216,011	219,576
Income (loss) before income taxes	$ 930	$ 230	$ 495	$ 150

X

- Definition

Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments.

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
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