Deposits - Schedule of Balances for Core Deposits and Time Deposits (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Deposits
Noninterest-bearing demand	$ 16,697,099	$ 15,450,428
Interest-bearing checking	7,989,255	7,940,692
Money market	15,439,729	14,816,511
Time deposits	25,284,814
Total deposits	67,082,701	63,175,023
Time deposits, at or above FDIC insurance limit	18,300,000	16,500,000
Domestic office
Deposits
Savings:	1,503,006	1,583,657
Time deposits	22,694,862	21,128,657
Foreign office
Deposits
Savings:	168,798	167,963
Time deposits	$ 2,589,952	$ 2,087,115

Amount of interest-bearing checking deposit liabilities.

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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.

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The aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, Negotiable Order of Withdrawal (NOW) and time deposits among others.

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Amount of deposits in accounts that offer many of the same services as checking accounts although transactions may be somewhat more limited, share some of the characteristics of a money market fund and are insured by the Federal government, also known as money market accounts.

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Amount of interest bearing deposits with no stated maturity, which may include passbook and statement savings accounts and money-market deposit accounts (MMDAs).

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The aggregate amount of all domestic and foreign noninterest-bearing deposits liabilities held by the entity.

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Amount of time deposit liabilities, including certificates of deposit.

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Amount of time deposit liabilities, including certificates of deposit, in denominations that meet or exceed the Federal Deposit Insurance Corporation (FDIC) insurance limit.

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