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Deposits - Total deposits (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Deposits
Noninterest-bearing checking	$ 13,650,799	$ 13,375,697
Interest-bearing checking	14,119,614	13,838,558
Savings	2,841,408	2,820,621
Money market	18,014,140	17,751,688
Time deposits	7,249,702	7,359,233
Total deposits	$ 55,875,663	$ 55,145,797

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- References

No definition available.

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- Definition

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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(12))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

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- Definition

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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(12))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

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- Definition

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

+ References

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-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
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-Subparagraph (SX 210.9-03(12))
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- Definition

Amount of money in interest-bearing domestic accounts that entitle the depositor to withdraw funds at any time without prior notice, also known as demand deposits.

+ References

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-Topic 942
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-Section S99
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Amount of money in noninterest-bearing domestic accounts that entitle the depositor to withdraw funds at any time without prior notice, also known as demand deposits.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
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-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(12))
-Publisher FASB
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Amount of time deposit liabilities, including certificates of deposit.

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-Paragraph 1
-SubTopic 405
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