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Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Taxes [Abstract]
Income tax expense (benefit) on operations	$ 526	$ 1,814	$ 6,739	$ (3,694)
Effective income tax rate	(5.40%)	21.30%	41.30%	24.30%
Total operating income (loss)	$ (8,928)	$ 9,827	$ 19,815	$ (13,337)

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

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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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