Income Taxes - Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
New Accounting Pronouncements
Income tax expense	$ (52)	$ (41)
Interest and penalties	0	0
Uncertain income tax positions recorded	0	0
Maximum
New Accounting Pronouncements
Income tax expense	$ (100)	$ (100)