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Loans And Allowance For Credit Losses (Summary Classification Of Held To Maturity Loan Portfolio) (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Loans And Allowance For Loan Losses [Line Items]
Held for Investment Loans	$ 15,898,958	$ 15,176,359
Business
Loans And Allowance For Loan Losses [Line Items]
Held for Investment Loans	5,528,895	5,303,535
Real estate - construction and land
Loans And Allowance For Loan Losses [Line Items]
Held for Investment Loans	1,206,955	1,118,266
Real estate - business
Loans And Allowance For Loan Losses [Line Items]
Held for Investment Loans	3,331,627	3,058,837
Real estate - personal
Loans And Allowance For Loan Losses [Line Items]
Held for Investment Loans	2,862,519	2,805,401
Consumer
Loans And Allowance For Loan Losses [Line Items]
Held for Investment Loans	2,116,371	2,032,225
Revolving Home Equity [Member]
Loans And Allowance For Loan Losses [Line Items]
Held for Investment Loans	286,026	275,945
Consumer credit card
Loans And Allowance For Loan Losses [Line Items]
Held for Investment Loans	563,349	575,410
Overdrafts
Loans And Allowance For Loan Losses [Line Items]
Held for Investment Loans	$ 3,216	$ 6,740

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- Definition

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+ References

No definition available.

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- Definition

Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=124259787&loc=d3e4428-111522

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