Quarterly report pursuant to Section 13 or 15(d)

AVAILABLE-FOR-SALE AND OTHER SECURITIES (Maturities/Unrealized) (Details)

v3.3.0.814
AVAILABLE-FOR-SALE AND OTHER SECURITIES (Maturities/Unrealized) (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]          
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net $ 2,440 $ 0 $ 2,440 $ 0  
Investment maturity date range          
Amortized Cost, Total 10,981,563   10,981,563   $ 9,359,886
Non-marketable equity securities, Fair Value 332,418   332,418   331,559
Marketable equity securities, Amortized Cost 755   755   536
Marketable equity securities, fair value 1,348   1,348   1,269
Available-for-sale and other securities 11,094,868   11,094,868   9,384,670
Amortized cost, fair value, and gross unrealized gains and losses recognized in accumulated other comprehensive income          
Amortized Cost, Total 10,981,563   10,981,563   9,359,886
Total investment securities, Unrealized Gross Gains     (174,673)   (117,554)
Total investment securities, Unrealized Gross Losses     (61,368)   (92,770)
Available-for-sale and other securities 11,094,868   11,094,868   9,384,670
Investment securities in unrealized loss position          
Total temporarily impaired securities, less than 12 months, Fair value 848,079   848,079   1,437,360
Total temporarily impaired securities, less than 12 months, Unrealized Losses     (12,877)   (12,949)
Total temporarily impaired securities, over 12 months, Fair Value 777,645   777,645   1,063,142
Total temporarily impaired securities, over 12 months, Unrealized Losses     (48,491)   (79,821)
Total temporarily impaired securities, Fair Value 1,625,724   1,625,724   2,500,502
Available-for-sale Securities, Gross Unrealized Loss     (61,368)   (92,770)
Trust Preferred Securities Total [Member]          
Schedule of Available-for-sale Securities [Line Items]          
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net 2,440 0 2,440 0  
U.S. Treasury          
Investment maturity date range          
Amortized Cost, Under 1 year 8,583   8,583   0
Fair Value, Under 1 year 8,585   8,585   0
Amortized Cost, 1-5 years 5,451   5,451   5,435
Fair Value, 1-5 years 5,510   5,510   5,452
Amortized Cost, 6-10 years 0   0   0
Fair Value, 6-10 years 0   0   0
Amortized Cost, Over 10 years 0   0   0
Fair Value, Over 10 years 0   0   0
Amortized Cost, Total 14,034   14,034   5,435
Fair Value, Total 14,095   14,095   5,452
Available-for-sale and other securities 14,095   14,095    
Amortized cost, fair value, and gross unrealized gains and losses recognized in accumulated other comprehensive income          
Amortized Cost, Total 14,034   14,034   5,435
Total investment securities, Unrealized Gross Gains     (61)   (17)
Total investment securities, Unrealized Gross Losses     0   0
Available-for-sale and other securities 14,095   14,095    
Investment securities in unrealized loss position          
Available-for-sale Securities, Gross Unrealized Loss     0   0
Federal agencies - mortgage backed securities          
Investment maturity date range          
Amortized Cost, Under 1 year 52,951   52,951   47,023
Fair Value, Under 1 year 53,052   53,052   47,190
Amortized Cost, 1-5 years 125,173   125,173   216,775
Fair Value, 1-5 years 128,473   128,473   221,078
Amortized Cost, 6-10 years 227,466   227,466   184,576
Fair Value, 6-10 years 231,846   231,846   186,938
Amortized Cost, Over 10 years 6,261,562   6,261,562   4,825,525
Fair Value, Over 10 years 6,350,842   6,350,842   4,867,495
Amortized Cost, Total 6,667,152   6,667,152   5,273,899
Fair Value, Total 6,764,213   6,764,213   5,322,701
Available-for-sale and other securities 6,764,213   6,764,213    
Amortized cost, fair value, and gross unrealized gains and losses recognized in accumulated other comprehensive income          
Amortized Cost, Total 6,667,152   6,667,152   5,273,899
Total investment securities, Unrealized Gross Gains     (104,044)   (63,906)
Total investment securities, Unrealized Gross Losses     (6,983)   (15,104)
Available-for-sale and other securities 6,764,213   6,764,213    
Investment securities in unrealized loss position          
Total temporarily impaired securities, less than 12 months, Fair value 417,246   417,246   501,858
Total temporarily impaired securities, less than 12 months, Unrealized Losses     (1,087)   (1,909)
Total temporarily impaired securities, over 12 months, Fair Value 262,384   262,384   527,280
Total temporarily impaired securities, over 12 months, Unrealized Losses     (5,896)   (13,195)
Total temporarily impaired securities, Fair Value 679,630   679,630   1,029,138
Available-for-sale Securities, Gross Unrealized Loss     (6,983)   (15,104)
Other Federal Agencies          
Investment maturity date range          
Amortized Cost, Under 1 year 1,702   1,702   33,047
Fair Value, Under 1 year 1,712   1,712   33,237
Amortized Cost, 1-5 years 8,264   8,264   9,122
Fair Value, 1-5 years 8,672   8,672   9,575
Amortized Cost, 6-10 years 214,184   214,184   103,530
Fair Value, 6-10 years 219,193   219,193   105,019
Amortized Cost, Over 10 years 144,292   144,292   204,016
Fair Value, Over 10 years 146,961   146,961   203,712
Amortized Cost, Total 368,442   368,442   349,715
Fair Value, Total 376,538   376,538   351,543
Available-for-sale and other securities 376,538   376,538   351,543
Amortized cost, fair value, and gross unrealized gains and losses recognized in accumulated other comprehensive income          
Amortized Cost, Total 368,442   368,442   349,715
Total investment securities, Unrealized Gross Gains     (8,096)   (2,871)
Total investment securities, Unrealized Gross Losses     0   (1,043)
Available-for-sale and other securities 376,538   376,538   351,543
Investment securities in unrealized loss position          
Total temporarily impaired securities, less than 12 months, Fair value 0   0   159,708
Total temporarily impaired securities, less than 12 months, Unrealized Losses     0   (1,020)
Total temporarily impaired securities, over 12 months, Fair Value 0   0   1,281
Total temporarily impaired securities, over 12 months, Unrealized Losses     0   (23)
Total temporarily impaired securities, Fair Value 0   0   160,989
Available-for-sale Securities, Gross Unrealized Loss     0   (1,043)
Total U.S. Government backed agencies          
Investment maturity date range          
Amortized Cost, Total 7,049,628   7,049,628   5,629,049
Fair Value, Total 7,154,846   7,154,846   5,679,696
Available-for-sale and other securities 7,154,846   7,154,846   5,679,696
Amortized cost, fair value, and gross unrealized gains and losses recognized in accumulated other comprehensive income          
Amortized Cost, Total 7,049,628   7,049,628   5,629,049
Total investment securities, Unrealized Gross Gains     (112,201)   (66,794)
Total investment securities, Unrealized Gross Losses     (6,983)   (16,147)
Available-for-sale and other securities 7,154,846   7,154,846   5,679,696
Investment securities in unrealized loss position          
Total temporarily impaired securities, less than 12 months, Fair value 417,246   417,246   661,566
Total temporarily impaired securities, less than 12 months, Unrealized Losses     (1,087)   (2,929)
Total temporarily impaired securities, over 12 months, Fair Value 262,384   262,384   528,561
Total temporarily impaired securities, over 12 months, Unrealized Losses     (5,896)   (13,218)
Total temporarily impaired securities, Fair Value 679,630   679,630   1,190,127
Available-for-sale Securities, Gross Unrealized Loss     (6,983)   (16,147)
Municipal securities          
Investment maturity date range          
Amortized Cost, Under 1 year 280,971   280,971   256,399
Fair Value, Under 1 year 276,600   276,600   255,835
Amortized Cost, 1-5 years 499,125   499,125   269,385
Fair Value, 1-5 years 501,559   501,559   274,003
Amortized Cost, 6-10 years 987,208   987,208   938,780
Fair Value, 6-10 years 993,630   993,630   945,954
Amortized Cost, Over 10 years 530,386   530,386   376,747
Fair Value, Over 10 years 556,302   556,302   392,777
Amortized Cost, Total 2,297,690   2,297,690   1,841,311
Fair Value, Total 2,328,091   2,328,091   1,868,569
Available-for-sale and other securities 2,328,091   2,328,091    
Amortized cost, fair value, and gross unrealized gains and losses recognized in accumulated other comprehensive income          
Amortized Cost, Total 2,297,690   2,297,690   1,841,311
Total investment securities, Unrealized Gross Gains     (49,426)   (37,398)
Total investment securities, Unrealized Gross Losses     (19,025)   (10,140)
Available-for-sale and other securities 2,328,091   2,328,091    
Investment securities in unrealized loss position          
Total temporarily impaired securities, less than 12 months, Fair value 282,128   282,128   568,619
Total temporarily impaired securities, less than 12 months, Unrealized Losses     (11,078)   (9,127)
Total temporarily impaired securities, over 12 months, Fair Value 243,660   243,660   96,426
Total temporarily impaired securities, over 12 months, Unrealized Losses     (7,947)   (1,013)
Total temporarily impaired securities, Fair Value 525,788   525,788   665,045
Available-for-sale Securities, Gross Unrealized Loss     (19,025)   (10,140)
Private label CMO          
Investment maturity date range          
Amortized Cost, Under 1 year 0   0   0
Fair Value, Under 1 year 0   0   0
Amortized Cost, 1-5 years 0   0   0
Fair Value, 1-5 years 0   0   0
Amortized Cost, 6-10 years 0   0   1,314
Fair Value, 6-10 years 0   0   1,371
Amortized Cost, Over 10 years 0   0   42,416
Fair Value, Over 10 years 0   0   40,555
Amortized Cost, Total 0   0   43,730
Fair Value, Total 0   0   41,926
Available-for-sale and other securities 0   0    
Amortized cost, fair value, and gross unrealized gains and losses recognized in accumulated other comprehensive income          
Amortized Cost, Total 0   0   43,730
Total investment securities, Unrealized Gross Gains     0   (1,116)
Total investment securities, Unrealized Gross Losses     0   (2,920)
Available-for-sale and other securities 0   0    
Investment securities in unrealized loss position          
Total temporarily impaired securities, less than 12 months, Fair value 0   0   0
Total temporarily impaired securities, less than 12 months, Unrealized Losses     0   0
Total temporarily impaired securities, over 12 months, Fair Value 0   0   22,650
Total temporarily impaired securities, over 12 months, Unrealized Losses     0   (2,920)
Total temporarily impaired securities, Fair Value 0   0   22,650
Available-for-sale Securities, Gross Unrealized Loss     0   (2,920)
Other Asset Backed Securities          
Investment maturity date range          
Amortized Cost, Under 1 year 0   0   0
Fair Value, Under 1 year 0   0   0
Amortized Cost, 1-5 years 90,168   90,168   228,852
Fair Value, 1-5 years 90,580   90,580   229,364
Amortized Cost, 6-10 years 128,425   128,425   144,163
Fair Value, 6-10 years 129,530   129,530   144,193
Amortized Cost, Over 10 years 624,998   624,998   641,984
Fair Value, Over 10 years 593,899   593,899   582,441
Amortized Cost, Total 843,591   843,591   1,014,999
Fair Value, Total 814,009   814,009   955,998
Available-for-sale and other securities 814,009   814,009    
Amortized cost, fair value, and gross unrealized gains and losses recognized in accumulated other comprehensive income          
Amortized Cost, Total 843,591   843,591   1,014,999
Total investment securities, Unrealized Gross Gains     (4,471)   (2,061)
Total investment securities, Unrealized Gross Losses     (34,053)   (61,062)
Available-for-sale and other securities 814,009   814,009    
Investment securities in unrealized loss position          
Total temporarily impaired securities, less than 12 months, Fair value 102,467   102,467   157,613
Total temporarily impaired securities, less than 12 months, Unrealized Losses     (221)   (641)
Total temporarily impaired securities, over 12 months, Fair Value 248,239   248,239   325,691
Total temporarily impaired securities, over 12 months, Unrealized Losses     (33,832)   (60,421)
Total temporarily impaired securities, Fair Value 350,706   350,706   483,304
Available-for-sale Securities, Gross Unrealized Loss     (34,053)   (61,062)
Corporate debt          
Investment maturity date range          
Amortized Cost, Under 1 year 20,695   20,695   18,767
Fair Value, Under 1 year 20,746   20,746   18,953
Amortized Cost, 1-5 years 325,773   325,773   314,773
Fair Value, 1-5 years 333,460   333,460   323,503
Amortized Cost, 6-10 years 95,909   95,909   145,611
Fair Value, 6-10 years 94,883   94,883   143,720
Amortized Cost, Over 10 years 0   0   0
Fair Value, Over 10 years 0   0   0
Amortized Cost, Total 442,377   442,377   479,151
Fair Value, Total 449,089   449,089   486,176
Available-for-sale and other securities 449,089   449,089   486,176
Amortized cost, fair value, and gross unrealized gains and losses recognized in accumulated other comprehensive income          
Amortized Cost, Total 442,377   442,377   479,151
Total investment securities, Unrealized Gross Gains     (7,983)   (9,442)
Total investment securities, Unrealized Gross Losses     (1,271)   (2,417)
Available-for-sale and other securities 449,089   449,089   486,176
Investment securities in unrealized loss position          
Total temporarily impaired securities, less than 12 months, Fair value 45,450   45,450   49,562
Total temporarily impaired securities, less than 12 months, Unrealized Losses     (469)   (252)
Total temporarily impaired securities, over 12 months, Fair Value 21,876   21,876   88,398
Total temporarily impaired securities, over 12 months, Unrealized Losses     (802)   (2,165)
Total temporarily impaired securities, Fair Value 67,326   67,326   137,960
Available-for-sale Securities, Gross Unrealized Loss     (1,271)   (2,417)
Other Securities          
Investment maturity date range          
Amortized Cost, Under 1 year 0   0   250
Fair Value, Under 1 year 0   0   250
Amortized Cost, 1-5 years 3,950   3,950   3,150
Fair Value, 1-5 years 3,914   3,914   3,066
Amortized Cost, 6-10 years 0   0   0
Fair Value, 6-10 years 0   0   0
Amortized Cost, Over 10 years 0   0   0
Fair Value, Over 10 years 0   0   0
Amortized Cost, Total 348,277   348,277   351,646
Fair Value, Total 348,833   348,833   352,305
Available-for-sale and other securities 348,833   348,833   352,305
Amortized cost, fair value, and gross unrealized gains and losses recognized in accumulated other comprehensive income          
Amortized Cost, Total 348,277   348,277   351,646
Total investment securities, Unrealized Gross Gains     (592)   (743)
Total investment securities, Unrealized Gross Losses     (36)   (84)
Available-for-sale and other securities 348,833   348,833   352,305
Investment securities in unrealized loss position          
Total temporarily impaired securities, less than 12 months, Fair value 788   788   0
Total temporarily impaired securities, less than 12 months, Unrealized Losses     (22)   0
Total temporarily impaired securities, over 12 months, Fair Value 1,486   1,486   1,416
Total temporarily impaired securities, over 12 months, Unrealized Losses     (14)   (84)
Total temporarily impaired securities, Fair Value 2,274   2,274   1,416
Available-for-sale Securities, Gross Unrealized Loss     (36)   (84)
Mutual Funds          
Investment maturity date range          
Amortized Cost, Total 11,154   11,154   16,151
Fair Value, Total 11,153   11,153   16,161
Amortized cost, fair value, and gross unrealized gains and losses recognized in accumulated other comprehensive income          
Amortized Cost, Total 11,154   11,154   $ 16,151
Debt Securities [Member]          
Schedule of Available-for-sale Securities [Line Items]          
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net $ 2,440 $ 0 $ 2,440 $ 0