Deposits (Balances for Core Deposits and Time Deposits) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Core Deposits
Noninterest-bearing demand	$ 16,298,301	$ 11,080,036
Interest-bearing checking	6,142,193	5,200,755
Money market	10,740,667	8,711,964
Savings	2,681,242	2,117,196
Time deposits:
Less than $100,000	999,664	1,993,950
$100,000 or greater	8,000,685	8,220,358
Total deposits	44,862,752	37,324,259
Time deposits	9,000,349
Hong Kong and China
Core Deposits
Interest-bearing demand deposit	696,100	493,400
Time deposits:
Time deposits	840,700	1,210,000
Geographic Distribution, Domestic
Time deposits:
Time deposits, at or above FDIC insurance limit	5,780,000	5,440,000
Geographic Distribution, Foreign \| Hong Kong and China
Time deposits:
Time deposits, at or above FDIC insurance limit	$ 823,200	$ 1,190,000

Core Deposits [Abstract]

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Core Deposits [Line Items]

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Amount of interest-bearing checking deposit liabilities.

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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.

+ References

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-Publisher FASB
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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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Amount of money in interest-bearing foreign accounts that entitle the depositor to withdraw funds at any time without prior notice, also known as demand deposits. Checking and negotiable order withdrawals (NOW) are the most common forms of demand deposits.

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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 that meet or exceed the Federal Deposit Insurance Corporation (FDIC) insurance limit.

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

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