Quarterly report pursuant to Section 13 or 15(d)

AVAILABLE-FOR-SALE AND OTHER SECURITIES - Collateralized Debt Obligation (Details)

v3.7.0.1
AVAILABLE-FOR-SALE AND OTHER SECURITIES - Collateralized Debt Obligation (Details) - USD ($)
$ in Thousands
Mar. 31, 2017
Dec. 31, 2016
Schedule of Available-for-sale Securities [Line Items]    
Unrealized Gross Losses $ (259,901) $ (261,644)
Pooled Trust Preferred    
Schedule of Available-for-sale Securities [Line Items]    
Par Value 109,667 137,197
Amortized Cost 81,526 101,210
Fair Value 59,492 76,003
Unrealized Gross Losses (22,034) $ (25,207)
Pooled Trust Preferred | ICONS    
Schedule of Available-for-sale Securities [Line Items]    
Par Value 18,594  
Amortized Cost 18,594  
Fair Value 15,416  
Unrealized Gross Losses $ (3,178)  
Actual Deferrals and Defaults as Percent of Original Collateral 7.00%  
Expected Defaults as Percent of Remaining Performing Collateral 13.00%  
Excess Subordination 55.00%  
Pooled Trust Preferred | MM Comm III    
Schedule of Available-for-sale Securities [Line Items]    
Par Value $ 4,573  
Amortized Cost 4,369  
Fair Value 3,625  
Unrealized Gross Losses $ (744)  
Actual Deferrals and Defaults as Percent of Original Collateral 5.00%  
Expected Defaults as Percent of Remaining Performing Collateral 6.00%  
Excess Subordination 39.00%  
Pooled Trust Preferred | Pre TSL IX    
Schedule of Available-for-sale Securities [Line Items]    
Par Value $ 5,000  
Amortized Cost 3,955  
Fair Value 3,285  
Unrealized Gross Losses $ (670)  
Actual Deferrals and Defaults as Percent of Original Collateral 16.00%  
Expected Defaults as Percent of Remaining Performing Collateral 8.00%  
Excess Subordination 10.00%  
Pooled Trust Preferred | Pre TSL XI    
Schedule of Available-for-sale Securities [Line Items]    
Par Value $ 25,000  
Amortized Cost 19,413  
Fair Value 15,923  
Unrealized Gross Losses $ (3,490)  
Actual Deferrals and Defaults as Percent of Original Collateral 14.00%  
Expected Defaults as Percent of Remaining Performing Collateral 8.00%  
Excess Subordination 14.00%  
Pooled Trust Preferred | Reg Diversified    
Schedule of Available-for-sale Securities [Line Items]    
Par Value $ 25,500  
Amortized Cost 4,195  
Fair Value 1,832  
Unrealized Gross Losses $ (2,363)  
Actual Deferrals and Defaults as Percent of Original Collateral 33.00%  
Expected Defaults as Percent of Remaining Performing Collateral 8.00%  
Excess Subordination 0.00%  
Pooled Trust Preferred | Tropic III    
Schedule of Available-for-sale Securities [Line Items]    
Par Value $ 31,000  
Amortized Cost 31,000  
Fair Value 19,411  
Unrealized Gross Losses $ (11,589)  
Actual Deferrals and Defaults as Percent of Original Collateral 16.00%  
Expected Defaults as Percent of Remaining Performing Collateral 7.00%  
Excess Subordination 42.00%