Deposits (Tables)

3 Months Ended

Mar. 31, 2021

Disclosure Text Block [Abstract]

Deposit Liabilities, Type

Deposits were as follows:

	March 31, 2021		Percentage of Total		December 31, 2020		Percentage of Total
Non-interest-bearing demand deposits:
Commercial and individual	$	15,002,423	40.6	%	$	13,914,754	39.7	%
Correspondent banks	213,554		0.6		242,225		0.7
Public funds	887,672		2.4		960,072		2.8
Total non-interest-bearing demand deposits	16,103,649		43.6		15,117,051		43.2
Interest-bearing deposits:
Private accounts:
Savings and interest checking	9,648,088		26.1		9,132,789		26.1
Money market accounts	9,416,210		25.5		8,977,585		25.6
Time accounts	1,141,660		3.1		1,135,575		3.3
Total private accounts	20,205,958		54.7		19,245,949		55.0
Public funds:
Savings and interest checking	556,523		1.5		597,503		1.7
Money market accounts	53,496		0.2		50,070		0.1
Time accounts	5,554		—		5,188		—
Total public funds	615,573		1.7		652,761		1.8
Total interest-bearing deposits	20,821,531		56.4		19,898,710		56.8
Total deposits	$	36,925,180	100.0	%	$	35,015,761	100.0	%

Additional Information About Corporation's Deposits

The following table presents additional information about our deposits:

	March 31, 2021		December 31, 2020
Deposits from the Certificate of Deposit Account Registry Service (CDARS) deposits	$	374	$	372
Deposits from foreign sources (primarily Mexico)	910,652		884,169
Total deposits not covered by deposit insurance	19,766,784		18,694,320
Time deposits not covered by deposit insurance	251,639		237,298