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Deposits - Schedule of Deposits (Detail) - USD ($) $ in Thousands | Jun. 30, 2021 | Dec. 31, 2020
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Deposit [Line Items] |  |
Total non-interest-bearing demand deposits | $ 16,459,535 | $ 15,117,051
Interest-bearing Deposit Liabilities, Total | 22,274,605 | 19,898,710
Total deposits | $ 38,734,140 | $ 35,015,761
Total non-interest-bearing demand deposits, Percentage of Total | 42.50% | 43.20%
Percentage of Interest-bearing Domestic Deposits to Deposits | 57.50% | 56.80%
Total deposits, Percentage of Total | 100.00% | 100.00%
Commercial and Individual [Member] |  |
Deposit [Line Items] |  |
Total non-interest-bearing demand deposits | $ 15,455,094 | $ 13,914,754
Total non-interest-bearing demand deposits, Percentage of Total | 39.90% | 39.70%
Correspondent Banks [Member] |  |
Deposit [Line Items] |  |
Total non-interest-bearing demand deposits | $ 192,050 | $ 242,225
Total non-interest-bearing demand deposits, Percentage of Total | 0.50% | 0.70%
Private Accounts [Member] |  |
Deposit [Line Items] |  |
Savings and interest checking | $ 10,728,710 | $ 9,132,789
Money market accounts | 9,739,422 | 8,977,585
Time Deposits | 1,117,883 | 1,135,575
Interest-bearing Deposit Liabilities, Total | $ 21,586,015 | $ 19,245,949
Savings and interest checking, Percentage of Total | 27.70% | 26.10%
Money market accounts, Percentage of Total | 25.10% | 25.60%
Percentage Of Time Accounts To Deposits | 2.90% | 3.30%
Percentage of Interest-bearing Domestic Deposits to Deposits | 55.70% | 55.00%
Public Funds [Member] |  |
Deposit [Line Items] |  |
Total non-interest-bearing demand deposits | $ 812,391 | $ 960,072
Savings and interest checking | 611,123 | 597,503
Money market accounts | 61,360 | 50,070
Time Deposits | 16,107 | 5,188
Interest-bearing Deposit Liabilities, Total | $ 688,590 | $ 652,761
Total non-interest-bearing demand deposits, Percentage of Total | 2.10% | 2.80%
Savings and interest checking, Percentage of Total | 1.60% | 1.70%
Money market accounts, Percentage of Total | 0.20% | 0.10%
Percentage Of Time Accounts To Deposits | 0.00% | 0.00%
Percentage of Interest-bearing Domestic Deposits to Deposits | 1.80% | 1.80%

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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=120398452&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=120398452&loc=d3e534808-122878 + Details
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