Quarterly report pursuant to Section 13 or 15(d)

Available-for-Sale and Other Securities (Trust Preferred) (Details 3)

v2.4.0.6
Available-for-Sale and Other Securities (Trust Preferred) (Details 3) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2013
Dec. 31, 2012
Trust Preferred Securities Data [Line Items]    
Available For Sales Securities Gross Unrealized Losses $ 112,112 $ 122,768
Pooled Trust Preferred [Member]
    
Trust Preferred Securities Data [Line Items]    
Par Value 262,459 266,863
Amortized Cost 190,350 195,760
Fair Value 90,958 84,296
Available For Sales Securities Gross Unrealized Losses (99,392) (111,464)
Pooled Trust Preferred [Member] | Alesco II [Member]
    
Trust Preferred Securities Data [Line Items]    
Par Value 41,645  
Amortized Cost 30,238  
Fair Value 11,601  
Available For Sales Securities Gross Unrealized Losses (18,637)  
Lowest Credit Rating C  
Number of Issuers Currently Performing 31  
Number of Issuers Currently Remaining 35  
Actual Deferrals and Defaults as Percent of Original Collateral 8.00%  
Expected Defaults as Percent of Remaining Performing Collateral 10.00%  
Excess Subordination 0.00%  
Pooled Trust Preferred [Member] | Alesco IV [Member]
    
Trust Preferred Securities Data [Line Items]    
Par Value 21,630  
Amortized Cost 8,247  
Fair Value 4,177  
Available For Sales Securities Gross Unrealized Losses (4,070)  
Lowest Credit Rating C  
Number of Issuers Currently Performing 32  
Number of Issuers Currently Remaining 39  
Actual Deferrals and Defaults as Percent of Original Collateral 9.00%  
Expected Defaults as Percent of Remaining Performing Collateral 13.00%  
Excess Subordination 0.00%  
Pooled Trust Preferred [Member] | ICONS [Member]
    
Trust Preferred Securities Data [Line Items]    
Par Value 20,000  
Amortized Cost 20,000  
Fair Value 13,948  
Available For Sales Securities Gross Unrealized Losses (6,052)  
Lowest Credit Rating BB  
Number of Issuers Currently Performing 23  
Number of Issuers Currently Remaining 24  
Actual Deferrals and Defaults as Percent of Original Collateral 3.00%  
Expected Defaults as Percent of Remaining Performing Collateral 13.00%  
Excess Subordination 47.00%  
Pooled Trust Preferred [Member] | I-Pre TSL II [Member]
    
Trust Preferred Securities Data [Line Items]    
Par Value 26,203  
Amortized Cost 26,136  
Fair Value 22,137  
Available For Sales Securities Gross Unrealized Losses (3,999)  
Lowest Credit Rating A  
Number of Issuers Currently Performing 22  
Number of Issuers Currently Remaining 24  
Actual Deferrals and Defaults as Percent of Original Collateral 5.00%  
Expected Defaults as Percent of Remaining Performing Collateral 10.00%  
Excess Subordination 73.00%  
Pooled Trust Preferred [Member] | MM Comm III [Member]
    
Trust Preferred Securities Data [Line Items]    
Par Value 7,220  
Amortized Cost 6,898  
Fair Value 4,931  
Available For Sales Securities Gross Unrealized Losses (1,967)  
Lowest Credit Rating B  
Number of Issuers Currently Performing 6  
Number of Issuers Currently Remaining 10  
Actual Deferrals and Defaults as Percent of Original Collateral 5.00%  
Expected Defaults as Percent of Remaining Performing Collateral 9.00%  
Excess Subordination 22.00%  
Pooled Trust Preferred [Member] | Pre TSL IX [Member]
    
Trust Preferred Securities Data [Line Items]    
Par Value 5,000  
Amortized Cost 3,955  
Fair Value 1,757  
Available For Sales Securities Gross Unrealized Losses (2,198)  
Lowest Credit Rating C  
Number of Issuers Currently Performing 32  
Number of Issuers Currently Remaining 46  
Actual Deferrals and Defaults as Percent of Original Collateral 20.00%  
Expected Defaults as Percent of Remaining Performing Collateral 14.00%  
Excess Subordination 7.00%  
Pooled Trust Preferred [Member] | Pre TSL X [Member]
    
Trust Preferred Securities Data [Line Items]    
Par Value 17,466  
Amortized Cost 9,041  
Fair Value 5,158  
Available For Sales Securities Gross Unrealized Losses (3,883)  
Lowest Credit Rating C  
Number of Issuers Currently Performing 35  
Number of Issuers Currently Remaining 50  
Actual Deferrals and Defaults as Percent of Original Collateral 26.00%  
Expected Defaults as Percent of Remaining Performing Collateral 13.00%  
Excess Subordination 0.00%  
Pooled Trust Preferred [Member] | Pre TSL XI [Member]
    
Trust Preferred Securities Data [Line Items]    
Par Value 25,225  
Amortized Cost 21,680  
Fair Value 7,217  
Available For Sales Securities Gross Unrealized Losses (14,463)  
Lowest Credit Rating C  
Number of Issuers Currently Performing 42  
Number of Issuers Currently Remaining 62  
Actual Deferrals and Defaults as Percent of Original Collateral 29.00%  
Expected Defaults as Percent of Remaining Performing Collateral 15.00%  
Excess Subordination 0.00%  
Pooled Trust Preferred [Member] | Pre TSL XIII [Member]
    
Trust Preferred Securities Data [Line Items]    
Par Value 29,070  
Amortized Cost 22,701  
Fair Value 8,927  
Available For Sales Securities Gross Unrealized Losses (13,774)  
Lowest Credit Rating C  
Number of Issuers Currently Performing 43  
Number of Issuers Currently Remaining 63  
Actual Deferrals and Defaults as Percent of Original Collateral 30.00%  
Expected Defaults as Percent of Remaining Performing Collateral 22.00%  
Excess Subordination 3.00%  
Pooled Trust Preferred [Member] | Reg Diversified [Member]
    
Trust Preferred Securities Data [Line Items]    
Par Value 25,500  
Amortized Cost 6,908  
Fair Value 462  
Available For Sales Securities Gross Unrealized Losses (6,446)  
Lowest Credit Rating D  
Number of Issuers Currently Performing 24  
Number of Issuers Currently Remaining 43  
Actual Deferrals and Defaults as Percent of Original Collateral 40.00%  
Expected Defaults as Percent of Remaining Performing Collateral 12.00%  
Excess Subordination 0.00%  
Pooled Trust Preferred [Member] | Soloso [Member]
    
Trust Preferred Securities Data [Line Items]    
Par Value 12,500  
Amortized Cost 3,546  
Fair Value 335  
Available For Sales Securities Gross Unrealized Losses (3,211)  
Lowest Credit Rating C  
Number of Issuers Currently Performing 37  
Number of Issuers Currently Remaining 64  
Actual Deferrals and Defaults as Percent of Original Collateral 32.00%  
Expected Defaults as Percent of Remaining Performing Collateral 23.00%  
Excess Subordination 0.00%  
Pooled Trust Preferred [Member] | Tropic III [Member]
    
Trust Preferred Securities Data [Line Items]    
Par Value 31,000  
Amortized Cost 31,000  
Fair Value 10,308  
Available For Sales Securities Gross Unrealized Losses $ (20,692)  
Lowest Credit Rating CC  
Number of Issuers Currently Performing 25  
Number of Issuers Currently Remaining 42  
Actual Deferrals and Defaults as Percent of Original Collateral 30.00%  
Expected Defaults as Percent of Remaining Performing Collateral 18.00%  
Excess Subordination 31.00%