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SECURITIES (Details) - USD ($) $ in Thousands | Jun. 30, 2015 | Sep. 30, 2014
--- | --- | ---
Available-for-sale debt securities [Abstract] |  |  |
Fair value |  | $ 596,976 | $ 657,870
Available-for-sale equity securities [Abstract] |  |  |
Fair value |  | 562,810 | 482,346
Available-for-sale securities [Abstract] |  |  |
Amortized cost |  | 1,170,799 | 1,148,414
Gross unrealized gains |  | 4,964 | 7,038
Gross unrealized (losses) |  | (15,977) | (15,236)
Fair value |  | 1,159,786 | 1,140,216
Available-for-sale securities in a continuous unrealized loss position [Abstract] |  |  |
LESS THAN 12 MONTHS, Fair Value |  | 783,483 | 280,692
LESS THAN 12 MONTHS, Unrealized (Losses) |  | (10,394) | (1,442)
OVER 12 MONTHS, Fair Value |  | 118,779 | 450,852
OVER 12 MONTHS, Unrealized (Losses) |  | (5,583) | (13,794)
TOTAL, Fair Value |  | 902,262 | 731,544
TOTAL, Unrealized (Losses) |  | (15,977) | (15,236)
AMORTIZED COST [Abstract] |  |  |
Due in one year or less |  | 3,000 | 2,999
Due after one year through five years |  | 1,179 | 9,922
Due after five years through ten years |  | 330,864 | 285,413
Due after ten years |  | 232,444 | 185,851
Total |  | 567,487 | 484,185
Mortgage-backed securities |  | 602,672 | 663,690
Common equities and mutual funds |  | 640 | 539
Amortized cost |  | 1,170,799 | 1,148,414
FAIR VALUE [Abstract] |  |  |
Due in one year or less |  | 3,008 | 3,048
Due after one year through five years |  | 1,205 | 10,079
Due after five years through ten years |  | 331,747 | 285,698
Due after ten years |  | 225,884 | 182,696
Total |  | 561,844 | 481,521
Mortgage-backed securities |  | 596,976 | 657,870
Common equities and mutual funds |  | 966 | 825
Total available for sale securities |  | 1,159,786 | 1,140,216
Held-to-maturity Securities [Abstract] |  |  |
Amortized cost |  | 331,635 | 282,933
Gross unrealized gains |  | 694 | 942
Gross unrealized (losses) |  | (5,340) | (4,563)
Fair value |  | 326,989 | 279,312
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract] |  |  |
LESS THAN 12 MONTHS, Fair Value |  | 222,134 | 1,056
OVER 12 MONTHS, Fair Value |  | 74,163 | 230,200
TOTAL, Fair Value |  | 296,297 | 231,256
LESS THAN 12 MONTHS, Unrealized (Losses) |  | (3,389) | (2)
OVER 12 MONTHS, Unrealized (Losses) |  | (1,951) | (4,561)
TOTAL, Unrealized (Losses) |  | (5,340) | (4,563)
AMORTIZED COST [Abstract] |  |  |
Due in one year or less |  | 95 | 347
Due after one year through five years |  | 6,028 | 4,726
Due after five years through ten years |  | 126,463 | 91,532
Due after ten years |  | 129,992 | 116,294
Total |  | 262,578 | 212,899
Mortgage-backed securities |  | 69,057 | 70,034
Amortized cost |  | 331,635 | 282,933
FAIR VALUE [Abstract] |  |  |
Due in one year or less |  | 95 | 348
Due after one year through five years |  | 5,986 | 4,718
Due after five years through ten years |  | 124,618 | 89,984
Due after ten years |  | 128,870 | 116,090
Total |  | 259,569 | 211,140
Mortgage-backed securities |  | 67,420 | 68,172
Total held to maturity securities |  | 326,989 | 279,312
Trust Preferred Securities [Member] |  |  |
Available-for-sale securities [Abstract] |  |  |
Amortized cost | [1] | 14,929 | 19,368
Unrealized gain (loss) | [1] | (2,235) | (1,868)
Fair value | [1] | 12,694 | 17,500
AMORTIZED COST [Abstract] |  |  |
Amortized cost | [1] | 14,929 | 19,368
FAIR VALUE [Abstract] |  |  |
Total available for sale securities | [1] | 12,694 | 17,500
Moody Credit Rating, Baa3 [Member] | Key Corp Capital I [Member] | Trust Preferred Securities [Member] |  |  |
Available-for-sale securities [Abstract] |  |  |
Amortized cost | [1] |  | 4,985
Unrealized gain (loss) | [1] |  | (585)
Fair value | [1] |  | 4,400
AMORTIZED COST [Abstract] |  |  |
Amortized cost | [1] |  | 4,985
FAIR VALUE [Abstract] |  |  |
Total available for sale securities | [1] |  | 4,400
Moody Credit Rating, Baa3 [Member] | Huntington Capital Trust II SE [Member] | Trust Preferred Securities [Member] |  |  |
Available-for-sale securities [Abstract] |  |  |
Amortized cost | [1] |  | 4,977
Unrealized gain (loss) | [1] |  | (677)
Fair value | [1] |  | 4,300
AMORTIZED COST [Abstract] |  |  |
Amortized cost | [1] |  | 4,977
FAIR VALUE [Abstract] |  |  |
Total available for sale securities | [1] |  | 4,300
Moody Credit Rating, Baa2 [Member] | Key Corp Capital I [Member] | Trust Preferred Securities [Member] |  |  |
Available-for-sale securities [Abstract] |  |  |
Amortized cost | [1] | 4,986 |
Unrealized gain (loss) | [1] | (766) |
Fair value | [1] | 4,220 |
AMORTIZED COST [Abstract] |  |  |
Amortized cost | [1] | 4,986 |
FAIR VALUE [Abstract] |  |  |
Total available for sale securities | [1] | 4,220 |
Moody Credit Rating, Baa2 [Member] | Huntington Capital Trust II SE [Member] | Trust Preferred Securities [Member] |  |  |
Available-for-sale securities [Abstract] |  |  |
Amortized cost | [1] | 4,979 |
Unrealized gain (loss) | [1] | (954) |
Fair value | [1] | 4,025 |
AMORTIZED COST [Abstract] |  |  |
Amortized cost | [1] | 4,979 |
FAIR VALUE [Abstract] |  |  |
Total available for sale securities | [1] | 4,025 |
Moody Credit Rating, Baa2 [Member] | PNC Capital Trust [Member] | Trust Preferred Securities [Member] |  |  |
Available-for-sale securities [Abstract] |  |  |
Amortized cost | [1] |  | 4,962
Unrealized gain (loss) | [1] |  | (562)
Fair value | [1] |  | 4,400
AMORTIZED COST [Abstract] |  |  |
Amortized cost | [1] |  | 4,962
FAIR VALUE [Abstract] |  |  |
Total available for sale securities | [1] |  | 4,400
Moody Credit Rating, Baa1 [Member] | PNC Capital Trust [Member] | Trust Preferred Securities [Member] |  |  |
Available-for-sale securities [Abstract] |  |  |
Amortized cost | [1] | 4,964 |
Unrealized gain (loss) | [1] | (515) |
Fair value | [1] | 4,449 |
AMORTIZED COST [Abstract] |  |  |
Amortized cost | [1] | 4,964 |
FAIR VALUE [Abstract] |  |  |
Total available for sale securities | [1] | 4,449 |
Moody Credit Rating, A3 [Member] | Wells Fargo (Corestates Capital) Trust [Member] | Trust Preferred Securities [Member] |  |  |
Available-for-sale securities [Abstract] |  |  |
Amortized cost | [1] |  | 4,444
Unrealized gain (loss) | [1] |  | (44)
Fair value | [1] |  | 4,400
AMORTIZED COST [Abstract] |  |  |
Amortized cost | [1] |  | 4,444
FAIR VALUE [Abstract] |  |  |
Total available for sale securities | [1] |  | 4,400
Debt Securities [Member] |  |  |
Available-for-sale debt securities [Abstract] |  |  |
Amortized cost |  | 1,170,159 | 1,147,875
Gross unrealized gains |  | 4,631 | 6,747
Gross unrealized (losses) |  | (15,970) | (15,231)
Fair value |  | 1,158,820 | 1,139,391
Available-for-sale securities in a continuous unrealized loss position [Abstract] |  |  |
LESS THAN 12 MONTHS, Fair Value |  | 783,483 | 280,569
LESS THAN 12 MONTHS, Unrealized (Losses) |  | (10,394) | (1,437)
OVER 12 MONTHS, Fair Value |  | 118,657 | 450,852
OVER 12 MONTHS, Unrealized (Losses) |  | (5,576) | (13,794)
TOTAL, Fair Value |  | 902,140 | 731,421
TOTAL, Unrealized (Losses) |  | (15,970) | (15,231)
Trust Preferred and Corporate Securities [Member] |  |  |
Available-for-sale debt securities [Abstract] |  |  |
Amortized cost |  | 19,209 | 48,747
Gross unrealized gains |  | 18 | 191
Gross unrealized (losses) |  | (2,235) | (2,009)
Fair value |  | 16,992 | 46,929
Available-for-sale securities in a continuous unrealized loss position [Abstract] |  |  |
LESS THAN 12 MONTHS, Fair Value |  | 0 | 6,073
LESS THAN 12 MONTHS, Unrealized (Losses) |  | 0 | (47)
OVER 12 MONTHS, Fair Value |  | 12,694 | 25,359
OVER 12 MONTHS, Unrealized (Losses) |  | (2,235) | (1,962)
TOTAL, Fair Value |  | 12,694 | 31,432
TOTAL, Unrealized (Losses) |  | (2,235) | (2,009)
Small Business Administration Securities [Member] |  |  |
Available-for-sale debt securities [Abstract] |  |  |
Amortized cost |  | 35,967 | 66,541
Gross unrealized gains |  | 1,183 | 543
Gross unrealized (losses) |  | 0 | (72)
Fair value |  | 37,150 | 67,012
Available-for-sale securities in a continuous unrealized loss position [Abstract] |  |  |
LESS THAN 12 MONTHS, Fair Value |  |  | 8,454
LESS THAN 12 MONTHS, Unrealized (Losses) |  |  | (72)
OVER 12 MONTHS, Fair Value |  |  | 0
OVER 12 MONTHS, Unrealized (Losses) |  |  | 0
TOTAL, Fair Value |  |  | 8,454
TOTAL, Unrealized (Losses) |  |  | (72)
Non-bank Qualified Obligations of States and Political Subdivisions [Member] |  |  |
Available-for-sale debt securities [Abstract] |  |  |
Amortized cost |  | 512,311 | 368,897
Gross unrealized gains |  | 1,918 | 2,494
Gross unrealized (losses) |  | (6,527) | (3,811)
Fair value |  | 507,702 | 367,580
Available-for-sale securities in a continuous unrealized loss position [Abstract] |  |  |
LESS THAN 12 MONTHS, Fair Value |  | 326,156 | 27,062
LESS THAN 12 MONTHS, Unrealized (Losses) |  | (4,846) | (70)
OVER 12 MONTHS, Fair Value |  | 39,677 | 191,146
OVER 12 MONTHS, Unrealized (Losses) |  | (1,681) | (3,741)
TOTAL, Fair Value |  | 365,833 | 218,208
TOTAL, Unrealized (Losses) |  | (6,527) | (3,811)
Held-to-maturity Securities [Abstract] |  |  |
Amortized cost |  | 243,275 | 193,595
Gross unrealized gains |  | 668 | 894
Gross unrealized (losses) |  | (3,250) | (2,329)
Fair value |  | 240,693 | 192,160
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract] |  |  |
LESS THAN 12 MONTHS, Fair Value |  | 208,411 | 0
OVER 12 MONTHS, Fair Value |  | 3,412 | 147,949
TOTAL, Fair Value |  | 211,823 | 147,949
LESS THAN 12 MONTHS, Unrealized (Losses) |  | (3,145) | 0
OVER 12 MONTHS, Unrealized (Losses) |  | (105) | (2,329)
TOTAL, Unrealized (Losses) |  | (3,250) | (2,329)
AMORTIZED COST [Abstract] |  |  |
Amortized cost |  | 243,275 | 193,595
FAIR VALUE [Abstract] |  |  |
Total held to maturity securities |  | 240,693 | 192,160
Mortgage-backed Securities [Member] |  |  |
Available-for-sale debt securities [Abstract] |  |  |
Amortized cost |  | 602,672 | 663,690
Gross unrealized gains |  | 1,512 | 3,519
Gross unrealized (losses) |  | (7,208) | (9,339)
Fair value |  | 596,976 | 657,870
Available-for-sale securities in a continuous unrealized loss position [Abstract] |  |  |
LESS THAN 12 MONTHS, Fair Value |  | 457,327 | 238,980
LESS THAN 12 MONTHS, Unrealized (Losses) |  | (5,548) | (1,248)
OVER 12 MONTHS, Fair Value |  | 66,286 | 234,347
OVER 12 MONTHS, Unrealized (Losses) |  | (1,660) | (8,091)
TOTAL, Fair Value |  | 523,613 | 473,327
TOTAL, Unrealized (Losses) |  | (7,208) | (9,339)
Held-to-maturity Securities [Abstract] |  |  |
Amortized cost |  | 69,057 | 70,034
Gross unrealized gains |  | 0 | 0
Gross unrealized (losses) |  | (1,637) | (1,862)
Fair value |  | 67,420 | 68,172
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract] |  |  |
LESS THAN 12 MONTHS, Fair Value |  | 5,486 | 0
OVER 12 MONTHS, Fair Value |  | 61,934 | 68,172
TOTAL, Fair Value |  | 67,420 | 68,172
LESS THAN 12 MONTHS, Unrealized (Losses) |  | (95) | 0
OVER 12 MONTHS, Unrealized (Losses) |  | (1,542) | (1,862)
TOTAL, Unrealized (Losses) |  | (1,637) | (1,862)
AMORTIZED COST [Abstract] |  |  |
Amortized cost |  | 69,057 | 70,034
FAIR VALUE [Abstract] |  |  |
Total held to maturity securities |  | 67,420 | 68,172
Obligations of States and Political Subdivisions [Member] |  |  |
Held-to-maturity Securities [Abstract] |  |  |
Amortized cost |  | 19,303 | 19,304
Gross unrealized gains |  | 26 | 48
Gross unrealized (losses) |  | (453) | (372)
Fair value |  | 18,876 | 18,980
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract] |  |  |
LESS THAN 12 MONTHS, Fair Value |  | 8,237 | 1,056
OVER 12 MONTHS, Fair Value |  | 8,817 | 14,079
TOTAL, Fair Value |  | 17,054 | 15,135
LESS THAN 12 MONTHS, Unrealized (Losses) |  | (149) | (2)
OVER 12 MONTHS, Unrealized (Losses) |  | (304) | (370)
TOTAL, Unrealized (Losses) |  | (453) | (372)
AMORTIZED COST [Abstract] |  |  |
Amortized cost |  | 19,303 | 19,304
FAIR VALUE [Abstract] |  |  |
Total held to maturity securities |  | 18,876 | 18,980
Common Equities and Mutual Funds [Member] |  |  |
Available-for-sale equity securities [Abstract] |  |  |
Amortized cost |  | 640 | 539
Gross unrealized gains |  | 333 | 291
Gross unrealized (losses) |  | (7) | (5)
Fair value |  | 966 | 825
Available-for-sale securities in a continuous unrealized loss position [Abstract] |  |  |
LESS THAN 12 MONTHS, Fair Value |  | 0 | 123
LESS THAN 12 MONTHS, Unrealized (Losses) |  | 0 | (5)
OVER 12 MONTHS, Fair Value |  | 122 | 0
OVER 12 MONTHS, Unrealized (Losses) |  | (7) | 0
TOTAL, Fair Value |  | 122 | 123
TOTAL, Unrealized (Losses) |  | $ (7) | $ (5)
[1] | Trust preferred securities are single-issuance. There are no known deferrals, defaults or excess subordination.

X
- Definition Amount of available-for-sale equity securities at cost, net of adjustments, that do not have a single maturity date and which the entity has decided to disclose separately rather than allocating the cost over several maturity groupings. Adjustments include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings (less any cumulative-effect adjustments, as defined) and fair value hedge accounting adjustments. + References No definition available. + Details
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