Debt Securities Held to Maturity - Continuous Unrealized Loss Position of Held-to-Maturity Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Less Than 12 Months
Fair Value	$ 280,063	$ 123,147
Gross Unrealized (Losses)	(33,044)	(1,686)
12 Months or Longer
Fair Value	90,328	0
Gross Unrealized (Losses)	(18,088)	0
Total
Fair Value	370,391	123,147
Gross Unrealized (Losses)	(51,132)	(1,686)
U.S. government and agency obligations
Less Than 12 Months
Fair Value	4,956	44,111
Gross Unrealized (Losses)	(44)	(759)
12 Months or Longer
Fair Value	37,611	0
Gross Unrealized (Losses)	(7,260)	0
Total
Fair Value	42,567	44,111
Gross Unrealized (Losses)	(7,304)	(759)
Mortgage-backed securities and collateralized mortgage obligations
Less Than 12 Months
Fair Value	275,107	79,036
Gross Unrealized (Losses)	(33,000)	(927)
12 Months or Longer
Fair Value	52,717	0
Gross Unrealized (Losses)	(10,828)	0
Total
Fair Value	327,824	79,036
Gross Unrealized (Losses)	$ (43,828)	$ (927)

Amount of accumulated unrealized loss on investment in debt security measured at amortized cost (held-to-maturity), in continuous loss position for 12 months or longer.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 7
-URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27337-111563

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 6
-Subparagraph (a)(2)
-URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27290-111563

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Amount of accumulated unrealized loss on investment in debt security measured at amortized cost (held-to-maturity), in unrealized loss position.

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Fair value of investment in debt security measured at amortized cost (held-to-maturity), in unrealized loss position.

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Amount of accumulated unrealized loss on investment in debt security measured at amortized cost (held-to-maturity), in continuous loss position for less than 12 months.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 6
-Subparagraph (a)(2)
-URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27290-111563

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 7
-URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27337-111563

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