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Investment Securities - Maturities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Investments, Debt and Equity Securities [Abstract]
Held to Maturity, Amortized Cost, Within one year	$ 101	$ 246
Held to Maturity, Amortized Cost, After one but within five years	25,666	7,550
Held to Maturity, Amortized Cost, After five years through ten years	182,604	52,113
Held to Maturity, Amortized Cost, After ten years	133,851	49,127
Held to Maturity, Amortized Cost, Total	342,222	109,036
Held to Maturity, Fair Value, Within one year	103	250
Held to Maturity, Fair Value, After one but within five years	26,559	7,961
Held to Maturity, Fair Value, After five years through ten years	182,303	55,872
Held to Maturity, Fair Value, After ten years	133,790	51,102
Held-to-Maturity, Fair Value, Total	342,755	115,185
Available for Sale, Amortized Cost, Within one year	10,785	11,530
Available for Sale, Amortized Cost, After one but within five years	219,474	59,028
Available For Sale, Amortized Cost, After five years through ten years	299,937	144,908
Available for Sale, Amortized Cost, After ten years	639,324	157,572
Amortized Cost	1,169,520	373,038
Available for Sale, Fair Value, Within one year	10,841	11,687
Available for Sale, Fair Value, After one but within five years	219,957	62,397
Available for Sale, Fair Value, After five years through ten years	300,187	154,089
Available for Sale, Fair Value, After ten years	636,583	164,178
Available for Sale, Fair Value, Total	$ 1,167,568	$ 392,351

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5
-Subparagraph (aa)
-URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27232-111563

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(6))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5A
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123581744&loc=SL120269820-111563

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X

- References

No definition available.

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Balance Type:	na
Period Type:	duration