Income Taxes and Distributions (Provision for Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Current	$ 15,850	$ 7,633	$ 14,944
Deferred	(7,176)	12,495	(34,072)
Totals	$ 8,674	$ 20,128	$ (19,128)