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Deposits (Balances for Core Deposits and Time Deposits) (Details) - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Time Deposits |  |
Less than $100,000 | $ 1,176,973 | $ 1,300,091
$100,000 or greater | 4,463,776 | 4,315,178
Total time deposits | 5,640,749 | 5,615,269
Total deposits | 31,615,063 | 29,890,983
Core deposits: |  |
Noninterest-bearing demand | 10,887,306 | 10,183,946
Interest-bearing checking | 4,419,089 | 3,674,417
Money market | 8,359,425 | 8,174,854
Savings | 2,308,494 | 2,242,497
Total core deposits | 25,974,314 | 24,275,714
Geographic Distribution, Foreign | Hong Kong and China |  |
Time Deposits |  |
Time Deposits, at or Above FDIC Insurance Limit | 814,600 | 538,000
Geographic Distribution, Foreign | China |  |
Time Deposits |  |
$100,000 or greater | 507,100 | 329,900
Geographic Distribution, Foreign | Hong Kong |  |
Time Deposits |  |
$100,000 or greater | 322,000 | 219,700
Geographic Distribution, Domestic | UNITED STATES |  |
Time Deposits |  |
Time Deposits, at or Above FDIC Insurance Limit | $ 2,370,000 | $ 2,350,000

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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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.12) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.12) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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- Definition The aggregate amount of all domestic and foreign noninterest-bearing deposits liabilities held by the entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.12) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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