Income Taxes - Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance, beginning of year	$ 528	$ 483
Additions for tax positions of prior years	260	45
Reductions for tax positions of prior years	(350)
Balance, end of year	438	$ 528
Decrease in tax position	100
Favorable tax positions that impact the effective tax rate	$ 200