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DERIVATIVES AND HEDGING ACTIVITIES (Tables) | 3 Months Ended
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Mar. 31, 2026
DERIVATIVES AND HEDGING ACTIVITIES |
Schedule of fair value of derivative Instruments and location in statements of financials | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ ​ ​ | Location in | ​ ​ ​ | Fair Value
​ | ​ | Consolidated Statements | ​ | March 31, | ​ ​ ​ | December 31,
​ | ​ | of Financial Condition | ​ | 2026 | ​ | 2025
​ | ​ | ​ | ​ | (In Thousands)
Derivatives designated as hedging instruments | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Active interest rate swaps | ​ | Accrued expenses and other liabilities | ​ | $ | 7,434 | ​ | $ | 5,590
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total derivatives designated as hedging instruments | ​ | ​ | ​ | $ | 7,434 | ​ | $ | 5,590
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Derivatives not designated as hedging instruments | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Asset Derivatives |  | ​ | ​ | ​ | ​ | ​ | ​ | ​
Interest rate products |  | Prepaid expenses and other assets | ​ | $ | 5,461 | ​ | $ | 5,663
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total derivatives not designated as hedging instruments | ​ | ​ | ​ | $ | 5,461 | ​ | $ | 5,663
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Liability Derivatives | ​ | ​ | ​ |  | ​ | ​ | ​ | ​
Interest rate products | ​ | Accrued expenses and other liabilities | ​ | $ | 5,446 | ​ | $ | 5,646
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total derivatives not designated as hedging instruments | ​ | ​ | ​ | $ | 5,446 | ​ | $ | 5,646
Schedule of effect of cash flow hedge accounting through accumulated other comprehensive income on statements of comprehensive income | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ ​ ​ | Amount of Gain (Loss)
​ | ​ | Recognized in AOCI
​ | ​ | Three Months Ended March 31,
Cash Flow Hedges |  | 2026 | ​ ​ ​ | 2025
​ |  | (In Thousands)
Terminated interest rate swap, net of income taxes | ​ | $ | — | ​ | $ | (1,546)
Active interest rate swaps, net of income taxes | ​ | ​ | (1,390) | ​ | ​ | 4,181
​ | ​ | $ | (1,390) | ​ | $ | 2,635
​
Schedule of effect of cash flow hedge accounting on statements of operations | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended March 31,
Cash Flow Hedges |  | 2026 |  | 2025
​ |  | Interest |  | Interest |  | Interest |  | Interest
​ | ​ ​ ​ | Income | ​ ​ ​ | Expense | ​ ​ ​ | Income | ​ ​ ​ | Expense
​ |  | (In Thousands)
Total Interest Income | ​ | $ | 71,165 | ​ | $ | — | ​ | $ | 80,243 | ​ | $ | —
Total Interest Expense | ​ | ​ | — | ​ | ​ | 22,837 | ​ | ​ | — | ​ | ​ | 30,909
​ | ​ | $ | 71,165 | ​ | $ | 22,837 | ​ | $ | 80,243 | ​ | $ | 30,909
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Terminated interest rate swap | ​ | $ | — | ​ | $ | — | ​ | $ | 2,003 | ​ | $ | —
Active interest rate swaps | ​ | ​ | (1,031) | ​ | ​ | — | ​ | ​ | (1,742) | ​ | ​ | —
​ | ​ | $ | (1,031) | ​ | $ | — | ​ | $ | 261 | ​ | $ | —
​

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- Definition Tabular disclosure of gain (loss) on derivative and nonderivative instruments designated and qualifying as cash flow hedge recorded in accumulated other comprehensive income (AOCI) and reclassified into earnings. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4E -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4E Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4C -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4C Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4A -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4A + Details
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