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Summary of Significant Accounting Policies - Paycheck Protection Program (Details) - USD ($)	12 Months Ended			33 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2022
Amount recognized in net loan fees	$ 90,833,000	$ 88,118,000	$ 90,992,000
Minimum
Fees as percentage of principal amount (as a percent)	1.00%
Maximum
Fees as percentage of principal amount (as a percent)	5.00%
Paycheck Protection Program
Amount recognized in net loan fees	$ 679,000	$ 4,060,000.00	$ 1,560,000	$ 6,300,000

X

- Definition

Percentage of fees the Corporation received from the Small Business Administration (SBA) of the principal amount of each loan originated under the Paycheck Protection Program (PPP).

+ References

No definition available.

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- Definition

The aggregate interest and fee income generated by: (1) loans the Entity has positive intent and ability to hold for the foreseeable future, or until maturity or payoff, including commercial and consumer loans, whether domestic or foreign, which may consist of: (a) industrial and agricultural; (b) real estate; and (c) real estate construction loans; (d) trade financing; (e) lease financing; (f) home equity lines-of-credit; (g) automobile and other vehicle loans; and (h) credit card and other revolving-type loans and (2) loans and leases held-for-sale which may include mortgage loans, direct financing, and sales-type leases.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.1)
-URI https://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260

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