Additional Cash Flow Information (Details) - USD ($) $ in Thousands	9 Months Ended
Sep. 30, 2022	Sep. 30, 2021
Other Significant Noncash Transactions [Line Items]
Interest paid	$ 66,744	$ 59,535
Income taxes (refunded) paid	14,674	46,693
Transfers of premises held for sale to other real estate owned	0	4,368
Transfers of premises held for sale to premises	0	5,610
Transfers of available-for-sale to held-to-maturity securities	1,992,542	500,809
Transfers of loans to foreclosed assets held for sale
Other Significant Noncash Transactions [Line Items]
Transfers of loans and premises	632	3,516
Transfer of Premises to Foreclosed Assets and Other Real Estate Owned
Other Significant Noncash Transactions [Line Items]
Transfers of loans and premises	$ 100	$ 0

Transfers Of Available-For-Sale To Held-To-Maturity Securities

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Transfers Of Premises Held-For-Sale To Premises

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The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes.

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Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount.

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Value transferred out of real estate owned (REO) in noncash transactions.

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Value transferred from mortgage loans to real estate owned (REO) in noncash transactions.

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