Income Taxes Components of Income Tax Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Income from continuing operations:
Income before income taxes	$ 908	$ 24,459
Income tax expense	102	4,917
Net income before attribution to noncontrolling interests	$ 806	$ 19,542
Effective tax rate	11.20%	20.10%