The amount of debt securities available for sale realized loss on exclusion of certain shares.

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The value of debt securities available for sale, sold during the period.

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Represents the number of securities held by the reporting entity that were in a gross unrealized loss position as of the reporting date.

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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in sixth through tenth 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).

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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, 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).

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Amortized cost excluding accrued interest, before allowance for credit loss, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount excluding accrued interest, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of realized gain on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of realized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of realized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount excluding accrued interest, after allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity) with single maturity date and allocated without single maturity date, maturing after tenth 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).

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Amount excluding accrued interest, before allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity).

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Reference 8: http://www.xbrl.org/2003/role/disclosureRef
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-Topic 942
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-Name Accounting Standards Codification
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-Paragraph 1
-Subparagraph (SX 210.9-03(6))
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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
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-URI https://asc.fasb.org/1943274/2147481830/320-10-45-11

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
-Section 50
-Paragraph 9
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-URI https://asc.fasb.org/1943274/2147481800/320-10-50-9

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-SubTopic 10
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-Section 45
-Paragraph 11
-Publisher FASB
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Securities - Amortized cost and fair value by contractual maturity (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2025
Amortized Cost
Due after one year through five years	$ 180,963
Due after five years through ten years	341,754
Due after ten years	1,484,532
Amortized Cost	2,007,249		$ 2,048,030
Fair Value
Due after one year through five years	168,977
Due after five years through ten years	297,376
Due after ten years	1,217,785
Fair Value	1,684,138		1,732,850
Amortized Cost
Due in one year or less	19,129
Due after one year through five years	403,443
Due after five years through ten years	1,149,497
Due after ten years	5,397,114
Amortized Cost	6,969,183		6,696,576
Fair Value
Due in one year or less	19,092
Due after one year through five years	399,986
Due after five years through ten years	1,083,644
Due after ten years	5,027,626
Fair Value	6,530,348		$ 6,313,756
Information with respect to sales of available-for-sale securities
Sale proceeds		$ 2,874,110
Gross realized gains		8,892
Gross realized losses		237,703
Net realized (losses) gain		(228,811)
Sold securities	0	1,800,000
Realized gains or losses		0
Information with respect to sales of held-to-maturity
Proceeds from sales of investment securities held to maturity	$ 0	0
Gross unrealized losses	1,135
Sales of Securities Acquired from Independent
Information with respect to sales of available-for-sale securities
Sale proceeds		1,279,717
Investment Securities Sales
Information with respect to sales of available-for-sale securities
Sale proceeds		1,594,393
Gross realized gains		8,892
Gross realized losses		237,703
Net realized (losses) gain		$ (228,811)