Income Taxes: Tax Benefit Related to Legal Restructuring (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Deferred Tax Assets, Goodwill and Intangible Assets		$ 49,000
Deferred income taxes	$ 19,602	(25,430)
Other Restructuring
Deferred income taxes		$ 49,000

Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.

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