Income Taxes Income Taxes (Components of Income Tax) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Current
Federal	$ 22,408	$ 32,042	$ 20,215
State	2,070	3,868	1,869
Current income tax expense (benefit)	24,478	35,910	22,084
Deferred
Federal	10,595	160	1,797
State	1,566	1,106	521
Deferred income tax expense (benefit)	12,161	1,266	2,318
Income tax expense	$ 36,639	$ 37,176	$ 24,402