Income Taxes Text Details (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Tax Credit Carryforward [Line Items]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate	35.00%	35.00%	35.00%
Increase (Decrease) in Deferred Income Taxes	$ 3,800
Deferred Income Tax Expense (Benefit)	2,777	$ (4,575)	$ 5,058
Deferred Tax Assets, Valuation Allowance	0	458
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	800	800	800
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense	0	0	0
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	0	0	0
Capital Loss Carryforward [Member]
Tax Credit Carryforward [Line Items]
Deferred Tax Assets, Tax Credit Carryforwards	500
Tax Credit Carryforward, Amount	1,200
Deferred Tax Assets, Valuation Allowance	500
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	500
Income Tax Expense Components, Continuing Operations [Member]
Tax Credit Carryforward [Line Items]
Deferred Income Tax Expense (Benefit)	2,948	$ (4,422)	$ 4,554
Discontinued Operations [Member]
Tax Credit Carryforward [Line Items]
Deferred Income Tax Expense (Benefit)	100
Shareholders' Equity [Member]
Tax Credit Carryforward [Line Items]
Increase (Decrease) in Deferred Income Taxes	$ 6,600