Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2020	Dec. 31, 2019
Operating Loss Carryforwards [Line Items]
Additions for tax positions related to current year	$ 137		$ 206	$ 0
Effective income tax rate	6.72%		5.84%
Income Tax Benefit (Expense) Discrete Items	$ 237		$ 473
Income tax expense	1,677	$ 1,004	2,961	$ (80)
Income Tax Expense (Benefit), before discrete items	$ 1,400		$ 2,500
Effective Income Tax Rate Reconciliation, Excluding Discrete Items, Percent	5.77%		4.91%
Unrecognized Tax Benefits	$ 9,400		$ 9,400			$ 9,200
Minimum [Member] | Scenario, Forecast
Operating Loss Carryforwards [Line Items]
Effective income tax rate					5.00%
Maximum [Member] | Scenario, Forecast
Operating Loss Carryforwards [Line Items]
Effective income tax rate					6.00%