Income Taxes (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010		Dec. 31, 2009
Schedule Of Income Tax [Line Items]
Refundable income taxes	$ 55,800,000	$ 57,700,000
Carryback claims applicable to losses in prior years	55,500,000
Federal statutory rate	35.00%	35.00%	[1]	35.00%	[1]
Decrease in net DTA	1,400,000
Increase in shareholders' equity	29,200,000
Valuation allowance	86,277,000	86,436,000
Reduction in valuation allowance	200,000
Decrease in valuation allowance attributable to capital losses	700,000
Increase in certain net state DTAs	500,000
Deferred State and local tax expense (benefit)	478,000	(579,000)	[1]	(452,000)	[1]
Net state deferred tax assets	78,200,000
Capital losses	8,100,000
Tax expense recognized in discontinued operations	200,000
Valuation allowance loss carryovers	300,000
Alternative minimum tax credit carryovers	900,000
Interest and penalties related to unrecognized tax benefits	(700,000)	500,000		1,200,000
Accrued interest and penalties related to unrecognized	1,400,000	2,200,000
Cumulative taxable temporary differences related to reserves	58,000,000
Unrecognized temporary differences of deferred tax liability	20,800,000
Net decrease in unrecognized tax benefits	2,400,000
Unrecognized tax benefits that would impact the effective tax rate	2,900,000	3,100,000
Unrecognized tax benefits would affect the effective tax rate if recognized	4,400,000	4,800,000
Connecticut Net Operating Loss Carryover [Member]
Schedule Of Income Tax [Line Items]
Valuation allowance	65,700,000
Alternative minimum tax credit carryovers	3,300,000
Net operating loss carryovers	$ 1,300,000,000
Net operating loss carryforwards expiration date	2020 through 2031
Net operating loss, carryforward life, in years	5

[1] (a) Certain previously reported information has been corrected to reflect the deferment of certain commercial loan fees. For more information refer to Note 1.