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Deposits - Schedule of Deposits (Detail) - USD ($) $ in Thousands | Jun. 30, 2019 | Dec. 31, 2018
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Deposit [Line Items] |  |
Total non-interest-bearing demand deposits | $ 10,136,437 | $ 10,997,494
Total interest-bearing deposits | 15,848,586 | 16,151,710
Total deposits | $ 25,985,023 | $ 27,149,204
Total non-interest-bearing demand deposits, Percentage of Total | 39.00% | 40.50%
Total interest-bearing deposits, Percentage of Total | 61.00% | 59.50%
Total deposits, Percentage of Total | 100.00% | 100.00%
Commercial and Individual [Member] |  |
Deposit [Line Items] |  |
Total non-interest-bearing demand deposits | $ 9,634,530 | $ 10,305,850
Total non-interest-bearing demand deposits, Percentage of Total | 37.10% | 37.90%
Correspondent Banks [Member] |  |
Deposit [Line Items] |  |
Total non-interest-bearing demand deposits | $ 192,478 | $ 235,748
Total non-interest-bearing demand deposits, Percentage of Total | 0.70% | 0.90%
Private Accounts [Member] |  |
Deposit [Line Items] |  |
Savings and interest checking | $ 6,754,027 | $ 6,977,813
Money market accounts | 7,544,621 | 7,777,470
Time accounts of $100,000 or More | 674,198 | 526,789
Time accounts under $100,000 | 344,700 | 331,511
Total private accounts | $ 15,317,546 | $ 15,613,583
Savings and interest checking, Percentage of Total | 26.00% | 25.70%
Money market accounts, Percentage of Total | 29.00% | 28.60%
Time accounts of $100,000 or more, Percentage of Total | 2.60% | 2.00%
Time accounts under $100,000, Percentage of Total | 1.30% | 1.20%
Total private accounts, Percentage of Total | 58.90% | 57.50%
Public Funds [Member] |  |
Deposit [Line Items] |  |
Total non-interest-bearing demand deposits | $ 309,429 | $ 455,896
Savings and interest checking | 456,871 | 473,754
Money market accounts | 67,620 | 59,953
Time accounts of $100,000 or More | 6,524 | 4,332
Time accounts under $100,000 | 25 | 88
Total public funds | $ 531,040 | $ 538,127
Total non-interest-bearing demand deposits, Percentage of Total | 1.20% | 1.70%
Savings and interest checking, Percentage of Total | 1.80% | 1.80%
Money market accounts, Percentage of Total | 0.30% | 0.20%
Time accounts of $100,000 or more, Percentage of Total | 0.00% | 0.00%
Time accounts under $100,000, Percentage of Total | 0.00% | 0.00%
Total public funds, Percentage of Total | 2.10% | 2.00%

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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 -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://fasb.org/us-gaap/role/ref/legacyRef -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 interest bearing deposits with no stated maturity, which may include passbook and statement savings accounts and money-market deposit accounts (MMDAs). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -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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