LOANS AND ALLOWANCE FOR CREDIT LOSSES (Schedule of Past Due Loans) (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total loans	$ 7,065,128	$ 6,828,753
30 - 59 Days
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total loans	7,452	3,082
60 - 89 Days
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total loans	7,803	200
Non-accrual or 90 Days and Greater
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total loans	73,512	86,884
Total Past Due or Non-accrual
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total loans	88,767	90,166
Current Loans
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total loans	6,976,361	6,738,587
Commercial
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total loans	5,433,868	5,201,489
Construction
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total loans	239,456	261,804
Multi-family
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total loans	393,702	397,010
One-to-four-family
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total loans	85,523	86,449
One-to-four-family \| Total Past Due or Non-accrual
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total loans	2,416
One-to-four-family \| Current Loans
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total loans	83,107	83,999
Real Estate
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total loans	6,152,549	5,946,752
Real Estate \| Commercial
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total loans	5,433,868	5,201,489
Real Estate \| Commercial \| 30 - 59 Days
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total loans	6,041
Real Estate \| Commercial \| 60 - 89 Days
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total loans	2,761
Real Estate \| Commercial \| Non-accrual or 90 Days and Greater
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total loans	28,542	32,809
Real Estate \| Commercial \| Total Past Due or Non-accrual
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total loans	37,344	32,809
Real Estate \| Commercial \| Current Loans
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total loans	5,396,524	5,168,680
Real Estate \| Construction
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total loans	239,456	261,804
Real Estate \| Construction \| Current Loans
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total loans	239,456	261,804
Real Estate \| Multi-family
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total loans	393,702	397,010
Real Estate \| Multi-family \| 30 - 59 Days
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total loans	1,399	1,755
Real Estate \| Multi-family \| Non-accrual or 90 Days and Greater
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total loans	42,554	42,599
Real Estate \| Multi-family \| Total Past Due or Non-accrual
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total loans	43,953	44,354
Real Estate \| Multi-family \| Current Loans
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total loans	349,749	352,656
Real Estate \| One-to-four-family
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total loans	85,523	86,449
Real Estate \| One-to-four-family \| 30 - 59 Days
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total loans		1,246
Real Estate \| One-to-four-family \| Non-accrual or 90 Days and Greater
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total loans	2,416	2,450
Real Estate \| One-to-four-family \| Total Past Due or Non-accrual
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total loans	2,416	3,696
Real Estate \| One-to-four-family \| Current Loans
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total loans	83,107	82,753
Commercial and industrial
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total loans	902,822	871,652
Commercial and industrial \| 30 - 59 Days
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total loans	12
Commercial and industrial \| 60 - 89 Days
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total loans	5,042	200
Commercial and industrial \| Non-accrual or 90 Days and Greater
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total loans		8,989
Commercial and industrial \| Total Past Due or Non-accrual
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total loans	5,054	9,189
Commercial and industrial \| Current Loans
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total loans	897,768	862,463
Consumer
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total loans	9,757	10,349
Consumer \| 30 - 59 Days
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total loans		81
Consumer \| Non-accrual or 90 Days and Greater
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total loans		37
Consumer \| Total Past Due or Non-accrual
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total loans		118
Consumer \| Current Loans
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total loans	$ 9,757	$ 10,231