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Income Taxes - Components of income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Components of income before taxes
Pre-IPO Domestic		$ 13,370	$ 65,023
Post-IPO Domestic	$ 173,039	146,620
Pre-IPO Foreign		512	3,073
Post-IPO Foreign	15,284	9,299
Income before income taxes	$ 188,323	$ 169,801	$ 68,096

X

- Definition

The portion of earnings or loss from continuing operations before income taxes that is attributable to domestic operations.

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

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The portion of earnings or loss from continuing operations before income taxes that is attributable to foreign operations, which is defined as Income or Loss generated from operations located outside the entity's country of domicile.

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The portion of earnings or loss from the limited liability company before income taxes that is attributable to domestic operations.

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The portion of earnings or loss from the limited liability company before income taxes that is attributable to foreign operations.

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