Income Taxes (Details 2) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Components of Deferred Tax Assets and Liabilities [Abstract]
Allowance for loan losses	$ 11,754	$ 17,395
Net operating loss	145,472	119,446
Compensation and benefit plans	805	2,098
Fair value basis on securities	1,199	1,392
Fair value basis of loans	9,742	12,099
Fair value basis on deposits	187	859
Pension and other post-retirement benefits	2,754	2,017
Other real estate owned	16,650	16,904
Gross unrealized securities losses	838	446
Interest on non-performing loans	1,382	1,382
Other	811	1,759
Subtotal deferred tax assets	191,594	175,797
Less: Valuation allowance	(182,402)	(167,011)
Total deferred tax assets	9,192	8,786
Core deposit intangible	2,673	3,229
Depreciable basis of premises and equipment	721	1,151
Net deferred loan fees and costs	1,010	871
Gross unrealized securities gains	3,220	631
SAB 109 valuation	2	6
Other	728	1,096
Total deferred tax liabilities	8,354	6,984
Net deferred tax assets	$ 838	$ 1,802