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Business Combinations - Pro Forma Information (Details) - Happy Bancshares, Inc. $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) $ / shares
Business Acquisition [Line Items]
Total interest income	$ 935,168
Total non-interest income	188,012
Net income available to all shareholders	$ 406,949
Basic earnings per common share (in dollars per share) | $ / shares	$ 1.98
Diluted earnings per common share (in dollars per share) | $ / shares	$ 1.98

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Business Acquisition, Pro Forma Interest and Dividend Income, Operating

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 805
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479907/805-20-50-5

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The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (h)(2)
-SubTopic 10
-Topic 805
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479328/805-10-50-2

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-Section 50
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-Subparagraph (h)(2)
-SubTopic 10
-Topic 805
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-URI https://asc.fasb.org/1943274/2147479328/805-10-50-2

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-Section 50
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-URI https://asc.fasb.org/1943274/2147479328/805-10-50-2

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