XML 54 R43.htm IDEA: XBRL DOCUMENT v3.7.0.1
SECURITIES - Available for Sale (Details) - USD ($)
$ in Thousands
Mar. 31, 2017
Sep. 30, 2016
Available-for-sale debt securities [Abstract]    
Fair value $ 642,833 $ 558,940
Available-for-sale equity securities [Abstract]    
Fair value 1,184,440 910,309
Available-for-sale securities [Abstract]    
Amortized cost 1,829,056 1,435,272
Gross unrealized gains 11,042 37,257
Gross unrealized (losses) (12,825) (3,280)
Total available for sale securities 1,827,273 1,469,249
Available-for-sale securities in a continuous unrealized loss position [Abstract]    
LESS THAN 12 MONTHS, Fair Value 848,889 151,949
LESS THAN 12 MONTHS, Unrealized (Losses) (11,787) (1,033)
OVER 12 MONTHS, Fair Value 36,119 52,770
OVER 12 MONTHS, Unrealized (Losses) (1,038) (2,247)
TOTAL, Fair Value 885,008 204,719
TOTAL, Unrealized (Losses) (12,825) (3,280)
AMORTIZED COST    
Due in one year or less 0 0
Due after one year through five years 18,662 17,370
Due after five years through ten years 444,661 426,034
Due after ten years 712,822 436,077
Total 1,176,145 879,481
Mortgage-backed securities 651,784 555,036
Common equities and mutual funds 1,127 755
Amortized cost 1,829,056 1,435,272
FAIR VALUE    
Due in one year or less 0 0
Due after one year through five years 19,134 17,897
Due after five years through ten years 450,446 446,771
Due after ten years 713,305 444,516
Total 1,182,885 909,184
Mortgage-backed securities 642,833 558,940
Common equities and mutual funds 1,555 1,125
Total available for sale securities 1,827,273 1,469,249
Trust Preferred Securities [Member]    
Available-for-sale debt securities [Abstract]    
Amortized cost   14,935
Gross unrealized gains   0
Gross unrealized (losses)   (1,957)
Fair value   12,978
Available-for-sale securities in a continuous unrealized loss position [Abstract]    
LESS THAN 12 MONTHS, Fair Value   0
LESS THAN 12 MONTHS, Unrealized (Losses)   0
OVER 12 MONTHS, Fair Value   12,978
OVER 12 MONTHS, Unrealized (Losses)   (1,957)
TOTAL, Fair Value   12,978
TOTAL, Unrealized (Losses)   (1,957)
Small Business Administration Securities [Member]    
Available-for-sale debt securities [Abstract]    
Amortized cost 130,175 78,431
Gross unrealized gains 1,173 2,288
Gross unrealized (losses) 0 0
Fair value 131,348 80,719
Non-bank Qualified Obligations of States and Political Subdivisions [Member]    
Available-for-sale debt securities [Abstract]    
Amortized cost 927,959 668,628
Gross unrealized gains 7,914 30,141
Gross unrealized (losses) (3,863) (97)
Fair value 932,010 698,672
Available-for-sale securities in a continuous unrealized loss position [Abstract]    
LESS THAN 12 MONTHS, Fair Value 239,208 8,481
LESS THAN 12 MONTHS, Unrealized (Losses) (3,722) (58)
OVER 12 MONTHS, Fair Value 2,594 2,688
OVER 12 MONTHS, Unrealized (Losses) (141) (39)
TOTAL, Fair Value 241,802 11,169
TOTAL, Unrealized (Losses) (3,863) (97)
Asset-backed Securities [Member]    
Available-for-sale debt securities [Abstract]    
Amortized cost 118,011 117,487
Gross unrealized gains 1,516 73
Gross unrealized (losses) 0 (745)
Fair value 119,527 116,815
Available-for-sale securities in a continuous unrealized loss position [Abstract]    
LESS THAN 12 MONTHS, Fair Value   89,403
LESS THAN 12 MONTHS, Unrealized (Losses)   (745)
OVER 12 MONTHS, Fair Value   0
OVER 12 MONTHS, Unrealized (Losses)   0
TOTAL, Fair Value   89,403
TOTAL, Unrealized (Losses)   (745)
Mortgage-backed Securities [Member]    
Available-for-sale debt securities [Abstract]    
Amortized cost 651,784 555,036
Gross unrealized gains 0 4,382
Gross unrealized (losses) (8,951) (478)
Fair value 642,833 558,940
Available-for-sale securities in a continuous unrealized loss position [Abstract]    
LESS THAN 12 MONTHS, Fair Value 609,681 54,065
LESS THAN 12 MONTHS, Unrealized (Losses) (8,065) (230)
OVER 12 MONTHS, Fair Value 33,152 36,979
OVER 12 MONTHS, Unrealized (Losses) (886) (248)
TOTAL, Fair Value 642,833 91,044
TOTAL, Unrealized (Losses) (8,951) (478)
Debt Securities [Member]    
Available-for-sale debt securities [Abstract]    
Amortized cost 1,827,929 1,434,517
Gross unrealized gains 10,603 36,884
Gross unrealized (losses) (12,814) (3,277)
Fair value 1,825,718 1,468,124
Available-for-sale securities in a continuous unrealized loss position [Abstract]    
LESS THAN 12 MONTHS, Fair Value 848,889 151,949
LESS THAN 12 MONTHS, Unrealized (Losses) (11,787) (1,033)
OVER 12 MONTHS, Fair Value 35,746 52,645
OVER 12 MONTHS, Unrealized (Losses) (1,027) (2,244)
TOTAL, Fair Value 884,635 204,594
TOTAL, Unrealized (Losses) (12,814) (3,277)
Common Equities and Mutual Funds [Member]    
Available-for-sale equity securities [Abstract]    
Amortized cost 1,127 755
Gross unrealized gains 439 373
Gross unrealized (losses) (11) (3)
Fair value 1,555 1,125
Available-for-sale securities in a continuous unrealized loss position [Abstract]    
LESS THAN 12 MONTHS, Fair Value 0 0
LESS THAN 12 MONTHS, Unrealized (Losses) 0 0
OVER 12 MONTHS, Fair Value 373 125
OVER 12 MONTHS, Unrealized (Losses) (11) (3)
TOTAL, Fair Value 373 125
TOTAL, Unrealized (Losses) $ (11) $ (3)