Consolidated Statements of Operations (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Income Statement [Abstract]
Tax expense (benefit) on gain on sales of discontinued operations,	$ (1,591)	$ (287)
Discontinued Operation, Tax Effect of Gain (Loss) from Disposal of Discontinued Operation	1,591	287
Discontinued Operations
Income Statement [Abstract]
Income tax expense	1,482	10,141
Income tax expense	$ 1,482	$ 10,141

Amount of tax expense (benefit) on gain (loss) not previously recognized resulting from the disposal of a discontinued operation.

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