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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Classes of loans by aging (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	$ 4,538,114	$ 4,761,848
One- to four-family residential construction
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	21,856	30,533
Subdivision construction
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	25,452	19,861
Land development
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	32,725	42,504
Commercial construction
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	242,936	352,793
Owner occupied one- to four-family residential
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	672,276	710,446
Non-owner occupied one- to four-family residential
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	124,516	122,901
Commercial real estate
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	1,530,990	1,543,742
Other residential (multi-family)
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	1,485,546	1,549,249
Commercial business
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	230,299	220,291
Consumer auto
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	24,447	25,787
Consumer other
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	23,712	27,905
Home equity lines of credit
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	123,359	115,836
30-59 Days Past Due
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	184	2,605
30-59 Days Past Due | One- to four-family residential construction
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	6	12
30-59 Days Past Due | Owner occupied one- to four-family residential
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable		1,704
30-59 Days Past Due | Non-owner occupied one- to four-family residential
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable		642
30-59 Days Past Due | Consumer auto
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	20	39
30-59 Days Past Due | Consumer other
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	65	145
30-59 Days Past Due | Home equity lines of credit
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	93	63
60-89 Days Past Due
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	82	877
60-89 Days Past Due | Owner occupied one- to four-family residential
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	77	816
60-89 Days Past Due | Consumer auto
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	3	1
60-89 Days Past Due | Consumer other
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	2	4
60-89 Days Past Due | Home equity lines of credit
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable		56
Over 90 Days Past Due
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	1,728	3,573
Over 90 Days Past Due | Land development
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable		464
Over 90 Days Past Due | Owner occupied one- to four-family residential
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	582	950
Over 90 Days Past Due | Non-owner occupied one- to four-family residential
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	1,124	1,681
Over 90 Days Past Due | Commercial real estate
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable		77
Over 90 Days Past Due | Commercial business
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable		384
Over 90 Days Past Due | Consumer auto
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	9
Over 90 Days Past Due | Consumer other
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	13	17
Total Past Due
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	1,994	7,055
Total Past Due | One- to four-family residential construction
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	6	12
Total Past Due | Land development
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable		464
Total Past Due | Owner occupied one- to four-family residential
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	659	3,470
Total Past Due | Non-owner occupied one- to four-family residential
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	1,124	2,323
Total Past Due | Commercial real estate
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable		77
Total Past Due | Commercial business
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable		384
Total Past Due | Consumer auto
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	32	40
Total Past Due | Consumer other
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	80	166
Total Past Due | Home equity lines of credit
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	93	119
Current
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	4,536,120	4,754,793
Current | One- to four-family residential construction
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	21,850	30,521
Current | Subdivision construction
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	25,452	19,861
Current | Land development
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	32,725	42,040
Current | Commercial construction
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	242,936	352,793
Current | Owner occupied one- to four-family residential
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	671,617	706,976
Current | Non-owner occupied one- to four-family residential
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	123,392	120,578
Current | Commercial real estate
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	1,530,990	1,543,665
Current | Other residential (multi-family)
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	1,485,546	1,549,249
Current | Commercial business
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	230,299	219,907
Current | Consumer auto
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	24,415	25,747
Current | Consumer other
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	23,632	27,739
Current | Home equity lines of credit
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans Receivable	$ 123,266	$ 115,717

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