Income Taxes, Income Tax (Benefit) Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Current [Abstract]
Federal	$ 438	$ (7,460)	$ 1,067
State	(1,442)	1,246	1,867
Foreign	374	234	0
Total current income tax (benefit) expense	(630)	(5,980)	2,934
Deferred [Abstract]
Federal	(290,511)	0	0
State	0	0	0
Total deferred income tax (benefit) expense	(290,511)	0	0
Income tax (benefit) expense	$ (291,141)	$ (5,980)	$ 2,934