Deposits - Summary of Deposit Balances (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Deposit Liability [Line Items]
Time deposits	$ 2,163,858
Interest-bearing deposit accounts	1,107,711	$ 1,144,357
Savings accounts	901,493	919,244
Money market deposit accounts	859,961	775,488
Governmental deposit accounts	825,170	726,713
Total interest-bearing deposits	5,858,193	5,584,648
Non-interest-bearing deposits	1,468,363	1,567,649
Total deposits	7,326,556	7,152,297
Brokered CDs
Deposit Liability [Line Items]
Time deposits	483,444	575,429
Retail certificates of deposits ("CDs"):
Deposit Liability [Line Items]
$100 or more	956,845	815,300
Less than $100	723,569	628,117
Time deposits	$ 1,680,414	$ 1,443,417

Deposits, Governmental

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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 of all domestic and foreign interest-bearing deposit liabilities.

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Amount of interest-bearing domestic checking deposit liabilities.

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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 of $100,000 or more.

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Amount of time deposit liabilities, including certificates of deposit, in denominations of less than $100,000.

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