Income Taxes - Components of Income Taxes Payable (Receivable) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Components of income taxes payable (receivable)
Current taxes payable	$ 2,305	$ 2,407
Deferred taxes receivable	(2,619)	(4,136)
State
Components of income taxes payable (receivable)
Current taxes payable	1,538	1,786
Deferred taxes receivable	(968)	(1,300)
Federal
Components of income taxes payable (receivable)
Current taxes payable	767	621
Deferred taxes receivable	$ (1,651)	$ (2,836)