Borrowings - Schedule of Borrowed Funds FHLBNY and Correspondent Bank Advances Maturity and Call Date (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Line Of Credit Facility [Line Items]
FHLBNY Term advances ending, Scheduled Maturity, 2026	$ 200,000
FHLBNY Term advances ending, Scheduled Maturity, 2026/2027	212,000	$ 225,000
FHLBNY Term advances ending, Scheduled Maturity, 2027/2028	109,100	212,000
FHLBNY Term advances ending, Scheduled Maturity, 2028/2029	100,000	109,100
FHLBNY Term advances ending, Scheduled Maturity, 2029		50,000
FHLBNY Term advances ending, Scheduled Maturity, Total	621,100	596,100
FHLBNY Term advances ending, Redeemable at Call Date, 2026	200,000
FHLBNY Term advances ending, Redeemable at Call Date, 2026/2027	212,000	225,000
FHLBNY Term advances ending, Redeemable at Call Date, 2027/2028	109,100	212,000
FHLBNY Term advances ending, Redeemable at Call Date, 2028/2029	100,000	109,100
FHLBNY Term advances ending, Redeemable at Call Date, 2029		50,000
FHLBNY Term advances ending, Redeemable at Call Date, Total	$ 621,100	$ 596,100
FHLBNY Term advances ending, Weighted Average Rate, 2026	4.00%
FHLBNY Term advances ending, Weighted Average Rate, 2026/2027	3.44%	4.20%
FHLBNY Term advances ending, Weighted Average Rate, 2027/2028	3.74%	3.44%
FHLBNY Term advances ending, Weighted Average Rate, 2028/2029	3.50%	3.74%
FHLBNY Term advances ending, Weighted Average Rate, 2029		3.35%
FHLBNY Term advances ending, Weighted Average Rate, Total	3.68%	3.78%

Advance from federal home loan bank average interest rate.

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- Definition

Advances from federal home loan banks and others.

+ References

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- Definition

Advances from Federal Home Loan Banks redeemable and Correspondent Bank at call date.

+ References

No definition available.

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- Definition

Federal home loan bank advances redeemable at call date summary due from one to two years of balance sheet date.

+ References

No definition available.

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- Definition

Federal Home Loan Bank Advances Redeemable at Call Date Summary Due from Three to Four Years of Balance Sheet Date

+ References

No definition available.

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- Definition

Federal home loan bank advances redeemable at call date summary due from two to three years of balance sheet date.

+ References

No definition available.

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- Definition

Federal home loan advances redeemable at call date summary due in remainder of fiscal year of balance sheet date.

+ References

No definition available.

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- Definition

Federal home loan bank advances redeemable at call date summary due within one year of balance sheet date.

+ References

No definition available.

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- Definition

Weighted average interest rate of advance from Federal Home Loan Bank (FHLBank) due in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 942
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-Name Accounting Standards Codification
-Section 50
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-Topic 470
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481544/470-10-50-7

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- Definition

Weighted average interest rate of advance from Federal Home Loan Bank (FHLBank) due in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

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- Definition

Weighted average interest rate of advance from Federal Home Loan Bank (FHLBank) due in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

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- Definition

Weighted average interest rate of advance from Federal Home Loan Bank (FHLBank) due in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

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- Definition

Weighted average interest rate of advance from Federal Home Loan Bank (FHLBank) due in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

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- Definition

Amount of advance from Federal Home Loan Bank (FHLBank) maturing in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

Amount of advance from Federal Home Loan Bank (FHLBank) maturing in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

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- Definition

Amount of advance from Federal Home Loan Bank (FHLBank) maturing in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

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- Definition

Amount of advance from Federal Home Loan Bank (FHLBank) maturing in remainder of current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 470
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Amount of advance from Federal Home Loan Bank (FHLBank) maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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