Income Taxes Income Tax Disclosure (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Other Tax Expense (Benefit)		$ 3,500
Deferred Tax Assets, Gross		20,483	$ 20,180
Deferred Tax Liabilities, Gross		10,852	6,698
Deferred Tax Assets, Net of Valuation Allowance		$ 9,631	$ 13,482
Effective Income Tax Rate, Continuing Operations		23.15%	23.80%	40.09%
Effective Income Tax Rate Reconciliation, Deferred asset re-measurement as a result of Tax Act	$ 6,500	$ 0	$ 0	$ 6,520
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	$ 0	$ 0	$ 0	$ 0
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent		21.00%		35.00%