v3.26.1
SECURITIES - Available for Sale (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Sep. 30, 2025
Available-for-sale debt securities [Abstract]    
Amortized Cost $ 1,403,648 $ 1,518,129
Fair Value 1,219,616 1,327,843
Amortized Cost    
Due in one year or less 1,275 755
Due after one year through five years 353 1,332
Due after five years through ten years 27,173 27,688
Due after ten years 314,548 358,948
Total 343,349 388,723
Mortgage-backed securities 1,060,299 1,129,406
Fair Value    
Due in one year or less 1,280 760
Due after one year through five years 356 1,352
Due after five years through ten years 25,303 23,947
Due after ten years 286,111 329,534
Total 313,050 355,593
Mortgage-backed securities 906,566 972,250
Corporate securities    
Available-for-sale debt securities [Abstract]    
Amortized Cost 25,000 25,000
Gross Unrealized Gains 0 0
Gross Unrealized (Losses) (1,875) (3,750)
Fair Value 23,125 21,250
Available-for-sale securities in a continuous unrealized loss position [Abstract]    
LESS THAN 12 MONTHS, Fair Value 0 0
LESS THAN 12 MONTHS, Gross Unrealized (Losses) 0 0
OVER 12 MONTHS, Fair Value 23,125 21,250
OVER 12 MONTHS, Gross Unrealized (Losses) (1,875) (3,750)
TOTAL, Fair Value 23,125 21,250
Total, Gross Unrealized (Losses) (1,875) (3,750)
SBA securities    
Available-for-sale debt securities [Abstract]    
Amortized Cost 11,081 11,791
Gross Unrealized Gains 0 0
Gross Unrealized (Losses) (1,181) (1,022)
Fair Value 9,900 10,769
Available-for-sale securities in a continuous unrealized loss position [Abstract]    
LESS THAN 12 MONTHS, Fair Value 0 0
LESS THAN 12 MONTHS, Gross Unrealized (Losses) 0 0
OVER 12 MONTHS, Fair Value 9,900 10,769
OVER 12 MONTHS, Gross Unrealized (Losses) (1,181) (1,022)
TOTAL, Fair Value 9,900 10,769
Total, Gross Unrealized (Losses) (1,181) (1,022)
Obligations of states and political subdivisions    
Available-for-sale debt securities [Abstract]    
Amortized Cost 123 162
Gross Unrealized Gains 1 0
Gross Unrealized (Losses) 0 0
Fair Value 124 162
Non-bank qualified obligations of states and political subdivisions    
Available-for-sale debt securities [Abstract]    
Amortized Cost 197,620 213,072
Gross Unrealized Gains 7 25
Gross Unrealized (Losses) (25,841) (26,057)
Fair Value 171,786 187,040
Available-for-sale securities in a continuous unrealized loss position [Abstract]    
LESS THAN 12 MONTHS, Fair Value 0 0
LESS THAN 12 MONTHS, Gross Unrealized (Losses) 0 0
OVER 12 MONTHS, Fair Value 170,274 185,089
OVER 12 MONTHS, Gross Unrealized (Losses) (25,841) (26,057)
TOTAL, Fair Value 170,274 185,089
Total, Gross Unrealized (Losses) (25,841) (26,057)
Asset-backed securities    
Available-for-sale debt securities [Abstract]    
Amortized Cost 109,525 138,698
Gross Unrealized Gains 14 21
Gross Unrealized (Losses) (1,424) (2,347)
Fair Value 108,115 136,372
Available-for-sale securities in a continuous unrealized loss position [Abstract]    
LESS THAN 12 MONTHS, Fair Value 42,420 64,995
LESS THAN 12 MONTHS, Gross Unrealized (Losses) (1,038) (556)
OVER 12 MONTHS, Fair Value 61,336 66,263
OVER 12 MONTHS, Gross Unrealized (Losses) (386) (1,791)
TOTAL, Fair Value 103,756 131,258
Total, Gross Unrealized (Losses) (1,424) (2,347)
Mortgage-backed securities    
Available-for-sale debt securities [Abstract]    
Amortized Cost 1,060,299 1,129,406
Gross Unrealized Gains 60 57
Gross Unrealized (Losses) (153,793) (157,213)
Fair Value 906,566 972,250
Available-for-sale securities in a continuous unrealized loss position [Abstract]    
LESS THAN 12 MONTHS, Fair Value 2,627 1,102
LESS THAN 12 MONTHS, Gross Unrealized (Losses) (6) (2)
OVER 12 MONTHS, Fair Value 895,404 965,549
OVER 12 MONTHS, Gross Unrealized (Losses) (153,787) (157,211)
TOTAL, Fair Value 898,031 966,651
Total, Gross Unrealized (Losses) (153,793) (157,213)
Total debt securities AFS    
Available-for-sale debt securities [Abstract]    
Amortized Cost 1,403,648 1,518,129
Gross Unrealized Gains 82 103
Gross Unrealized (Losses) (184,114) (190,389)
Fair Value 1,219,616 1,327,843
Available-for-sale securities in a continuous unrealized loss position [Abstract]    
LESS THAN 12 MONTHS, Fair Value 45,047 66,097
LESS THAN 12 MONTHS, Gross Unrealized (Losses) (1,044) (558)
OVER 12 MONTHS, Fair Value 1,160,039 1,248,920
OVER 12 MONTHS, Gross Unrealized (Losses) (183,070) (189,831)
TOTAL, Fair Value 1,205,086 1,315,017
Total, Gross Unrealized (Losses) $ (184,114) $ (190,389)