Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Apr. 18, 2014
Income Tax Contingency [Line Items]
Deferred tax asset, net	$ 138,082	$ 230,442	$ 276,800
Net operating loss and tax credit carryforwards	238,400
Valuation allowance	1,090	3,366
Deferred Tax Assets, Gross	$ 307,300	420,000
State Tax Credits Benefit Period	5 years
State Tax Credits Carry Forward Period	8 years
Unrecognized Tax Benefits	$ 2,900	2,700
Effective income tax rate on unrecognized tax benefits that would impact effective tax rate	1.00%
Unrecognized Tax Benefits, Interest on Income Taxes Expense	$ 29	206
Accrued interest related to unrecognized tax benefits	428	399
Low Income Housing Tax Credit Carryforward [Member]
Income Tax Contingency [Line Items]
Tax Credit Carryforward, Amount	7,100	7,100
State and Local Jurisdiction [Member]
Income Tax Contingency [Line Items]
Valuation allowance	1,100	3,400
Tax Credit Carryforward, Amount	6,600	8,900
Domestic Tax Authority [Member] | Low Income Housing And Alternative Minimum Tax, Tax Credit Carryforward [Member]
Income Tax Contingency [Line Items]
Tax Credit Carryforward, Amount	$ 9,100	$ 13,000
Domestic Tax Authority [Member] | Low Income Housing Tax Credit Carryforward [Member]
Income Tax Contingency [Line Items]
Tax Credit Carryforward, Carryforward Term	20 years