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Securities (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Securities, available-for-sale, Fair Value	$ 1,614,249		$ 1,614,249		$ 874,753
Accrued interest receivable on available-for-sale debt securities	11,100		11,100		7,100
Proceeds from Sale of Debt Securities, Available-for-sale	0	$ 0	0	$ 0
Allowance for credit loss	0		0
Corporate
Securities, available-for-sale, Fair Value	169,555		169,555		155,449
Corporate | New York based bank holding company
Securities, available-for-sale, Fair Value	10,000		10,000
Held-to-maturity Securities
Specific reserve for outstanding balance of financing receivable in active forbearance	1,100		1,100		1,100
Accrued interest receivable on held-to-maturity securities	$ 100		$ 100		$ 100

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- Definition

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+ References

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- Definition

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+ References

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- Definition

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+ References

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- Definition

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
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-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479130/326-30-45-1

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- Definition

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).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
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