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LOANS AND ALLOWANCE FOR CREDIT LOSSES (Schedule of Loans by Allowance measurement Method) (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Jun. 30, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2022
Loans and Leases Receivable Disclosure [Line Items]
Total ending allowance balance	$ 62,493	$ 60,008	$ 57,965	$ 52,298	$ 51,650	$ 44,876
Total ending loan balance	5,913,511		5,642,012
Commercial
Loans and Leases Receivable Disclosure [Line Items]
Total ending loan balance	4,172,690		3,857,711
Construction
Loans and Leases Receivable Disclosure [Line Items]
Total ending loan balance	176,277		153,512
Multi-family
Loans and Leases Receivable Disclosure [Line Items]
Total ending loan balance	389,124		467,536
One-to-four-family
Loans and Leases Receivable Disclosure [Line Items]
Total ending loan balance	91,582		94,704
Real Estate
Loans and Leases Receivable Disclosure [Line Items]
Total ending loan balance	4,829,673		4,573,463
Real Estate | Commercial
Loans and Leases Receivable Disclosure [Line Items]
Total ending allowance balance	41,449	38,484	35,635	35,025	34,621	29,496
Total ending loan balance	4,172,690		3,857,711
Real Estate | Construction
Loans and Leases Receivable Disclosure [Line Items]
Total ending allowance balance	1,718	1,759	1,765	1,769	1,600	1,983
Total ending loan balance	176,277		153,512
Real Estate | Multi-family
Loans and Leases Receivable Disclosure [Line Items]
Total ending allowance balance	7,498	7,827	8,215	3,489	3,543	2,823
Total ending loan balance	389,124		467,536
Real Estate | One-to-four-family
Loans and Leases Receivable Disclosure [Line Items]
Total ending allowance balance	413	131	663	351	362	105
Total ending loan balance	91,582		94,704
Commercial & industrial
Loans and Leases Receivable Disclosure [Line Items]
Total ending allowance balance	10,944	11,282	11,207	11,096	10,977	10,274
Total ending loan balance	1,069,676		1,051,463
Consumer
Loans and Leases Receivable Disclosure [Line Items]
Total ending allowance balance	471	$ 525	480	$ 568	$ 547	$ 195
Total ending loan balance	$ 14,162		$ 17,086

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- Definition

Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479344/326-20-45-1

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