|
Available-for-Sale and Other Securities (Maturities/Unrealized) (Details) (USD $)
In Thousands, unless otherwise specified
|
3 Months Ended |
9 Months Ended |
12 Months Ended |
|
Sep. 30, 2013
|
Sep. 30, 2014
|
Dec. 31, 2013
|
| Investment maturity date range |
|
|
|
| Non-marketable equity securities, Amortized Cost Non-marketable equity securities, Amortized Cost |
|
$ 331,322
|
$ 320,991
|
| Marketable equity securities, Amortized Cost |
|
15,460
|
16,522
|
| Total investment securities, Amortized Cost |
|
8,736,342
|
7,368,907
|
| Non-marketable equity securities, Fair Value |
|
331,322
|
320,992
|
| Marketable equity securities, fair value |
|
16,303
|
16,971
|
| Available-for-sale and other securities |
|
8,721,804
|
7,308,753
|
| Amortized cost, fair value, and gross unrealized gains and losses recognized in accumulated other comprehensive income |
|
|
|
| Total investment securities, Amortized Cost |
|
8,736,342
|
7,368,907
|
| Total investment securities, Unrealized Gross Gains |
|
(98,375)
|
(92,542)
|
| Total investment securities, Unrealized Gross Losses |
|
(112,913)
|
(152,696)
|
| Available-for-sale and other securities |
|
8,721,804
|
7,308,753
|
| Investment securities in unrealized loss position |
|
|
|
| Total temporarily impaired securities, less than 12 months, Fair value |
|
2,263,959
|
2,722,688
|
| Total temporarily impaired securities, less than 12 months, Unrealized Losses |
|
(23,821)
|
(67,184)
|
| Total temporarily impaired securities, over 12 months, Fair Value |
|
1,079,196
|
178,956
|
| Total temporarily impaired securities, over 12 months, Unrealized Losses |
|
(89,092)
|
(85,512)
|
| Total temporarily impaired securities, Fair Value |
|
3,343,155
|
2,901,644
|
| Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses, Total |
|
(112,913)
|
(152,696)
|
|
U.S. Treasury [Member]
|
|
|
|
| Investment maturity date range |
|
|
|
| Amortized Cost, Under 1 year |
|
0
|
50,793
|
| Fair Value, Under 1 year |
|
0
|
51,086
|
| Amortized Cost, 1-5 years |
|
5,429
|
507
|
| Fair Value, 1-5 years |
|
5,424
|
516
|
| Amortized Cost, 6-10 years |
|
0
|
0
|
| Fair Value, 6-10 years |
|
0
|
0
|
| Amortized Cost, Over 10 years |
|
0
|
1
|
| Fair Value, Over 10 years |
|
0
|
2
|
| Amortized Cost, Total |
|
5,429
|
51,301
|
| Fair Value, Total |
|
5,424
|
51,604
|
| Total investment securities, Amortized Cost |
|
5,429
|
51,301
|
| Available-for-sale and other securities |
|
5,424
|
51,604
|
| Amortized cost, fair value, and gross unrealized gains and losses recognized in accumulated other comprehensive income |
|
|
|
| Total investment securities, Amortized Cost |
|
5,429
|
51,301
|
| Total investment securities, Unrealized Gross Gains |
|
(9)
|
(303)
|
| Total investment securities, Unrealized Gross Losses |
0
|
(14)
|
0
|
| Available-for-sale and other securities |
|
5,424
|
51,604
|
| Investment securities in unrealized loss position |
|
|
|
| Total temporarily impaired securities, less than 12 months, Fair value |
|
4,910
|
0
|
| Total temporarily impaired securities, less than 12 months, Unrealized Losses |
|
(14)
|
0
|
| Total temporarily impaired securities, over 12 months, Fair Value |
|
0
|
0
|
| Total temporarily impaired securities, over 12 months, Unrealized Losses |
|
0
|
0
|
| Total temporarily impaired securities, Fair Value |
|
4,910
|
0
|
| Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses, Total |
0
|
(14)
|
0
|
|
Federal agencies - mortgage backed securities [Member]
|
|
|
|
| Investment maturity date range |
|
|
|
| Amortized Cost, Under 1 year |
|
61,913
|
16,548
|
| Fair Value, Under 1 year |
|
62,155
|
16,607
|
| Amortized Cost, 1-5 years |
|
234,364
|
164,794
|
| Fair Value, 1-5 years |
|
237,900
|
166,946
|
| Amortized Cost, 6-10 years |
|
254,277
|
440,116
|
| Fair Value, 6-10 years |
|
257,620
|
443,456
|
| Amortized Cost, Over 10 years |
|
4,417,140
|
2,940,986
|
| Fair Value, Over 10 years |
|
4,429,157
|
2,939,212
|
| Amortized Cost, Total |
|
4,967,694
|
3,562,444
|
| Fair Value, Total |
|
4,986,832
|
3,566,221
|
| Total investment securities, Amortized Cost |
|
4,967,694
|
3,562,444
|
| Available-for-sale and other securities |
|
4,986,832
|
3,566,221
|
| Amortized cost, fair value, and gross unrealized gains and losses recognized in accumulated other comprehensive income |
|
|
|
| Total investment securities, Amortized Cost |
|
4,967,694
|
3,562,444
|
| Total investment securities, Unrealized Gross Gains |
|
(48,815)
|
(42,319)
|
| Total investment securities, Unrealized Gross Losses |
|
(29,677)
|
(38,542)
|
| Available-for-sale and other securities |
|
4,986,832
|
3,566,221
|
| Investment securities in unrealized loss position |
|
|
|
| Total temporarily impaired securities, less than 12 months, Fair value |
|
1,455,043
|
1,628,454
|
| Total temporarily impaired securities, less than 12 months, Unrealized Losses |
|
(10,664)
|
(37,174)
|
| Total temporarily impaired securities, over 12 months, Fair Value |
|
466,552
|
12,682
|
| Total temporarily impaired securities, over 12 months, Unrealized Losses |
|
(19,013)
|
(1,368)
|
| Total temporarily impaired securities, Fair Value |
|
1,921,595
|
1,641,136
|
| Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses, Total |
|
(29,677)
|
(38,542)
|
|
Other Federal Agencies [Member]
|
|
|
|
| Investment maturity date range |
|
|
|
| Amortized Cost, Under 1 year |
|
33,124
|
2,833
|
| Fair Value, Under 1 year |
|
33,418
|
2,880
|
| Amortized Cost, 1-5 years |
|
9,725
|
291,726
|
| Fair Value, 1-5 years |
|
10,178
|
297,510
|
| Amortized Cost, 6-10 years |
|
72,141
|
19,318
|
| Fair Value, 6-10 years |
|
72,243
|
19,498
|
| Amortized Cost, Over 10 years |
|
72,795
|
0
|
| Fair Value, Over 10 years |
|
73,112
|
0
|
| Amortized Cost, Total |
|
187,785
|
313,877
|
| Fair Value, Total |
|
188,951
|
319,888
|
| Total investment securities, Amortized Cost |
|
187,785
|
313,877
|
| Available-for-sale and other securities |
|
188,951
|
319,888
|
| Amortized cost, fair value, and gross unrealized gains and losses recognized in accumulated other comprehensive income |
|
|
|
| Total investment securities, Amortized Cost |
|
187,785
|
313,877
|
| Total investment securities, Unrealized Gross Gains |
|
(1,367)
|
(6,105)
|
| Total investment securities, Unrealized Gross Losses |
|
(201)
|
(94)
|
| Available-for-sale and other securities |
|
188,951
|
319,888
|
| Investment securities in unrealized loss position |
|
|
|
| Total temporarily impaired securities, less than 12 months, Fair value |
|
50,064
|
2,069
|
| Total temporarily impaired securities, less than 12 months, Unrealized Losses |
|
(169)
|
(94)
|
| Total temporarily impaired securities, over 12 months, Fair Value |
|
1,275
|
0
|
| Total temporarily impaired securities, over 12 months, Unrealized Losses |
|
(32)
|
0
|
| Total temporarily impaired securities, Fair Value |
|
51,339
|
2,069
|
| Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses, Total |
|
(201)
|
(94)
|
|
Total U.S. Government backed agencies [Member]
|
|
|
|
| Investment maturity date range |
|
|
|
| Amortized Cost, Total |
|
5,160,908
|
3,927,622
|
| Fair Value, Total |
|
5,181,207
|
3,937,713
|
| Total investment securities, Amortized Cost |
|
5,160,908
|
3,927,622
|
| Available-for-sale and other securities |
|
5,181,207
|
3,937,713
|
| Amortized cost, fair value, and gross unrealized gains and losses recognized in accumulated other comprehensive income |
|
|
|
| Total investment securities, Amortized Cost |
|
5,160,908
|
3,927,622
|
| Total investment securities, Unrealized Gross Gains |
|
(50,191)
|
(48,727)
|
| Total investment securities, Unrealized Gross Losses |
|
(29,892)
|
(38,636)
|
| Available-for-sale and other securities |
|
5,181,207
|
3,937,713
|
| Investment securities in unrealized loss position |
|
|
|
| Total temporarily impaired securities, less than 12 months, Fair value |
|
1,510,017
|
1,630,523
|
| Total temporarily impaired securities, less than 12 months, Unrealized Losses |
|
(10,847)
|
(37,268)
|
| Total temporarily impaired securities, over 12 months, Fair Value |
|
467,827
|
12,682
|
| Total temporarily impaired securities, over 12 months, Unrealized Losses |
|
(19,045)
|
(1,368)
|
| Total temporarily impaired securities, Fair Value |
|
1,977,844
|
1,643,205
|
| Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses, Total |
|
(29,892)
|
(38,636)
|
|
Municipal securities [Member]
|
|
|
|
| Investment maturity date range |
|
|
|
| Amortized Cost, Under 1 year |
|
234,499
|
191,788
|
| Fair Value, Under 1 year |
|
234,252
|
190,762
|
| Amortized Cost, 1-5 years |
|
230,524
|
206,719
|
| Fair Value, 1-5 years |
|
234,392
|
211,916
|
| Amortized Cost, 6-10 years |
|
857,371
|
556,873
|
| Fair Value, 6-10 years |
|
863,298
|
554,772
|
| Amortized Cost, Over 10 years |
|
371,054
|
184,883
|
| Fair Value, Over 10 years |
|
382,859
|
188,542
|
| Amortized Cost, Total |
|
1,693,448
|
1,140,263
|
| Fair Value, Total |
|
1,714,801
|
1,145,992
|
| Total investment securities, Amortized Cost |
|
1,693,448
|
1,140,263
|
| Available-for-sale and other securities |
|
1,714,801
|
1,145,992
|
| Amortized cost, fair value, and gross unrealized gains and losses recognized in accumulated other comprehensive income |
|
|
|
| Total investment securities, Amortized Cost |
|
1,693,448
|
1,140,263
|
| Total investment securities, Unrealized Gross Gains |
|
(33,347)
|
(18,825)
|
| Total investment securities, Unrealized Gross Losses |
|
(11,994)
|
(13,096)
|
| Available-for-sale and other securities |
|
1,714,801
|
1,145,992
|
| Investment securities in unrealized loss position |
|
|
|
| Total temporarily impaired securities, less than 12 months, Fair value |
|
426,425
|
551,114
|
| Total temporarily impaired securities, less than 12 months, Unrealized Losses |
|
(10,709)
|
(12,395)
|
| Total temporarily impaired securities, over 12 months, Fair Value |
|
140,218
|
7,531
|
| Total temporarily impaired securities, over 12 months, Unrealized Losses |
|
(1,285)
|
(701)
|
| Total temporarily impaired securities, Fair Value |
|
566,643
|
558,645
|
| Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses, Total |
|
(11,994)
|
(13,096)
|
|
Private label CMO [Member]
|
|
|
|
| Investment maturity date range |
|
|
|
| Amortized Cost, Under 1 year |
|
0
|
0
|
| Fair Value, Under 1 year |
|
0
|
0
|
| Amortized Cost, 1-5 years |
|
0
|
0
|
| Fair Value, 1-5 years |
|
0
|
0
|
| Amortized Cost, 6-10 years |
|
1,467
|
1,997
|
| Fair Value, 6-10 years |
|
1,533
|
2,089
|
| Amortized Cost, Over 10 years |
|
44,095
|
49,241
|
| Fair Value, Over 10 years |
|
42,139
|
47,015
|
| Amortized Cost, Total |
|
45,562
|
51,238
|
| Fair Value, Total |
|
43,672
|
49,104
|
| Total investment securities, Amortized Cost |
|
45,562
|
51,238
|
| Available-for-sale and other securities |
|
43,672
|
49,104
|
| Amortized cost, fair value, and gross unrealized gains and losses recognized in accumulated other comprehensive income |
|
|
|
| Total investment securities, Amortized Cost |
|
45,562
|
51,238
|
| Total investment securities, Unrealized Gross Gains |
|
(1,111)
|
(1,188)
|
| Total investment securities, Unrealized Gross Losses |
|
(3,001)
|
(3,322)
|
| Available-for-sale and other securities |
|
43,672
|
49,104
|
| Investment securities in unrealized loss position |
|
|
|
| Total temporarily impaired securities, less than 12 months, Fair value |
|
0
|
0
|
| Total temporarily impaired securities, less than 12 months, Unrealized Losses |
|
0
|
0
|
| Total temporarily impaired securities, over 12 months, Fair Value |
|
22,734
|
22,639
|
| Total temporarily impaired securities, over 12 months, Unrealized Losses |
|
(3,001)
|
(3,322)
|
| Total temporarily impaired securities, Fair Value |
|
22,734
|
22,639
|
| Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses, Total |
|
(3,001)
|
(3,322)
|
|
Other Asset Backed Securities [Member]
|
|
|
|
| Investment maturity date range |
|
|
|
| Amortized Cost, Under 1 year |
|
0
|
0
|
| Fair Value, Under 1 year |
|
0
|
0
|
| Amortized Cost, 1-5 years |
|
259,345
|
434,825
|
| Fair Value, 1-5 years |
|
260,221
|
438,156
|
| Amortized Cost, 6-10 years |
|
124,605
|
260,354
|
| Fair Value, 6-10 years |
|
123,519
|
260,880
|
| Amortized Cost, Over 10 years |
|
611,469
|
477,105
|
| Fair Value, Over 10 years |
|
549,460
|
392,004
|
| Amortized Cost, Total |
|
995,419
|
1,172,284
|
| Fair Value, Total |
|
933,200
|
1,091,040
|
| Total investment securities, Amortized Cost |
|
995,419
|
1,172,284
|
| Available-for-sale and other securities |
|
933,200
|
1,091,040
|
| Amortized cost, fair value, and gross unrealized gains and losses recognized in accumulated other comprehensive income |
|
|
|
| Total investment securities, Amortized Cost |
|
995,419
|
1,172,284
|
| Total investment securities, Unrealized Gross Gains |
|
(2,376)
|
(6,771)
|
| Total investment securities, Unrealized Gross Losses |
|
(64,595)
|
(88,015)
|
| Available-for-sale and other securities |
|
933,200
|
1,091,040
|
| Investment securities in unrealized loss position |
|
|
|
| Total temporarily impaired securities, less than 12 months, Fair value |
|
245,189
|
391,665
|
| Total temporarily impaired securities, less than 12 months, Unrealized Losses |
|
(1,856)
|
(9,720)
|
| Total temporarily impaired securities, over 12 months, Fair Value |
|
338,569
|
107,419
|
| Total temporarily impaired securities, over 12 months, Unrealized Losses |
|
(62,739)
|
(78,295)
|
| Total temporarily impaired securities, Fair Value |
|
583,758
|
499,084
|
| Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses, Total |
|
(64,595)
|
(88,015)
|
|
Covered Bonds [Member]
|
|
|
|
| Investment maturity date range |
|
|
|
| Amortized Cost, Under 1 year |
|
0
|
0
|
| Fair Value, Under 1 year |
|
0
|
0
|
| Amortized Cost, 1-5 years |
|
0
|
280,595
|
| Fair Value, 1-5 years |
|
0
|
285,874
|
| Amortized Cost, 6-10 years |
|
0
|
0
|
| Fair Value, 6-10 years |
|
0
|
0
|
| Amortized Cost, Over 10 years |
|
0
|
0
|
| Fair Value, Over 10 years |
|
0
|
0
|
| Amortized Cost, Total |
|
0
|
280,595
|
| Fair Value, Total |
|
0
|
285,874
|
| Total investment securities, Amortized Cost |
|
0
|
280,595
|
| Available-for-sale and other securities |
|
0
|
285,874
|
| Amortized cost, fair value, and gross unrealized gains and losses recognized in accumulated other comprehensive income |
|
|
|
| Total investment securities, Amortized Cost |
|
0
|
280,595
|
| Total investment securities, Unrealized Gross Gains |
|
0
|
(5,279)
|
| Total investment securities, Unrealized Gross Losses |
|
0
|
0
|
| Available-for-sale and other securities |
|
0
|
285,874
|
| Investment securities in unrealized loss position |
|
|
|
| Total temporarily impaired securities, less than 12 months, Fair value |
|
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
|
| Total temporarily impaired securities, over 12 months, Unrealized Losses |
|
0
|
0
|
| Total temporarily impaired securities, Fair Value |
|
0
|
0
|
| Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses, Total |
|
0
|
0
|
|
Corporate debt [Member]
|
|
|
|
| Investment maturity date range |
|
|
|
| Amortized Cost, Under 1 year |
|
18,821
|
903
|
| Fair Value, Under 1 year |
|
19,152
|
916
|
| Amortized Cost, 1-5 years |
|
298,430
|
283,079
|
| Fair Value, 1-5 years |
|
307,695
|
292,989
|
| Amortized Cost, 6-10 years |
|
173,072
|
161,398
|
| Fair Value, 6-10 years |
|
170,636
|
152,608
|
| Amortized Cost, Over 10 years |
|
0
|
10,113
|
| Fair Value, Over 10 years |
|
0
|
10,727
|
| Amortized Cost, Total |
|
490,323
|
455,493
|
| Fair Value, Total |
|
497,483
|
457,240
|
| Total investment securities, Amortized Cost |
|
490,323
|
455,493
|
| Available-for-sale and other securities |
|
497,483
|
457,240
|
| Amortized cost, fair value, and gross unrealized gains and losses recognized in accumulated other comprehensive income |
|
|
|
| Total investment securities, Amortized Cost |
|
490,323
|
455,493
|
| Total investment securities, Unrealized Gross Gains |
|
(10,507)
|
(11,241)
|
| Total investment securities, Unrealized Gross Losses |
|
(3,347)
|
(9,494)
|
| Available-for-sale and other securities |
|
497,483
|
457,240
|
| Investment securities in unrealized loss position |
|
|
|
| Total temporarily impaired securities, less than 12 months, Fair value |
|
82,328
|
146,308
|
| Total temporarily impaired securities, less than 12 months, Unrealized Losses |
|
(409)
|
(7,729)
|
| Total temporarily impaired securities, over 12 months, Fair Value |
|
108,432
|
26,155
|
| Total temporarily impaired securities, over 12 months, Unrealized Losses |
|
(2,938)
|
(1,765)
|
| Total temporarily impaired securities, Fair Value |
|
190,760
|
172,463
|
| Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses, Total |
|
(3,347)
|
(9,494)
|
|
Other Securities [Member]
|
|
|
|
| Investment maturity date range |
|
|
|
| Amortized Cost, Under 1 year |
|
750
|
500
|
| Fair Value, Under 1 year |
|
750
|
500
|
| Amortized Cost, 1-5 years |
|
3,150
|
3,399
|
| Fair Value, 1-5 years |
|
3,066
|
3,327
|
| Amortized Cost, 6-10 years |
|
0
|
0
|
| Fair Value, 6-10 years |
|
0
|
0
|
| Amortized Cost, Over 10 years |
|
0
|
0
|
| Fair Value, Over 10 years |
|
0
|
0
|
| Amortized Cost, Total |
|
350,682
|
341,412
|
| Fair Value, Total |
|
351,441
|
341,790
|
| Total investment securities, Amortized Cost |
|
350,682
|
341,412
|
| Available-for-sale and other securities |
|
351,441
|
341,790
|
| Amortized cost, fair value, and gross unrealized gains and losses recognized in accumulated other comprehensive income |
|
|
|
| Total investment securities, Amortized Cost |
|
350,682
|
341,412
|
| Total investment securities, Unrealized Gross Gains |
|
(843)
|
(511)
|
| Total investment securities, Unrealized Gross Losses |
|
(84)
|
(133)
|
| Available-for-sale and other securities |
|
351,441
|
341,790
|
| Investment securities in unrealized loss position |
|
|
|
| Total temporarily impaired securities, less than 12 months, Fair value |
|
0
|
3,078
|
| Total temporarily impaired securities, less than 12 months, Unrealized Losses |
|
0
|
(72)
|
| Total temporarily impaired securities, over 12 months, Fair Value |
|
1,416
|
2,530
|
| Total temporarily impaired securities, over 12 months, Unrealized Losses |
|
(84)
|
(61)
|
| Total temporarily impaired securities, Fair Value |
|
1,416
|
5,608
|
| Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses, Total |
|
$ (84)
|
$ (133)
|