Other Borrowed Funds Other Borrowed Funds (Tables)

12 Months Ended

Dec. 31, 2023

Debt Disclosure [Abstract]

Schedule of Other Borrowed Funds [Table Text Block]

Information relating to other borrowings is summarized as follows (dollars in thousands):

	As of				Year Ended
	December 31, 2023				December 31, 2023
	Balance		Rate		Average Balance		Rate		Maximum Outstanding At Any Month End
Funds purchased	$	515,747	5.17	%	$	847,676	4.83	%	$	1,711,580
Repurchase agreements	607,001		1.70	%	1,805,978		4.32	%	4,433,480
Other borrowings:
Federal Home Loan Bank advances	7,675,000		5.51	%	5,948,863		5.28	%	7,875,000
GNMA repurchase liability	11,660		4.13	%	11,224		4.04	%	12,414
Other	14,892		5.50	%	19,008		3.91	%	26,311
Total other borrowings	7,701,552				5,979,095		5.28	%
Subordinated debentures1	131,150		6.93	%	131,155		6.83	%	131,164
Total other borrowed funds	$	8,955,450			$	8,763,904	5.06	%

	As of				Year Ended
	December 31, 2022				December 31, 2022
	Balance		Rate		Average Balance		Rate		Maximum Outstanding At Any Month End
Funds purchased	$	99,843	0.05	%	$	266,344	1.12	%	$	444,069
Repurchase agreements	2,170,534		4.42	%	998,701		1.02	%	3,034,312
Other borrowings:
Federal Home Loan Bank advances	4,700,000		4.48	%	1,593,699		2.37	%	4,700,000
GNMA repurchase liability	10,608		4.06	%	6,692		4.38	%	11,011
Other	26,300		3.20	%	28,581		3.12	%	30,382
Total other borrowings	4,736,908				1,628,972		2.41	%
Subordinated debentures1	131,205		6.34	%	131,206		4.95	%	131,230
Total other borrowed funds	$	7,138,490			$	3,025,223	1.95	%

	As of				Year Ended
	December 31, 2021				December 31, 2021
	Balance		Rate		Average Balance		Rate		Maximum Outstanding At Any Month End
Funds purchased	$	199,513	0.05	%	$	543,183	0.46	%	$	542,465
Repurchase agreements	2,126,936		0.08	%	1,695,519		0.33	%	2,920,728
Other borrowings:
Federal Home Loan Bank advances	—		—	%	1,679,315		0.27	%	2,600,000
GNMA repurchase liability	7,420		4.36	%	11,956		4.06	%	23,856
Paycheck protection program liquidity facility	—		—	%	879,145		0.35	%	1,662,598
Other	29,333		3.23	%	29,445		4.18	%	31,875
Total other borrowings	36,753				2,599,861		0.38	%
Subordinated debentures1	131,226		3.95	%	224,058		4.70	%	276,049
Total other borrowed funds	$	2,494,428			$	5,062,621	0.56	%

Schedule of Maturities of Other Borrowed Funds [Table Text Block]

Aggregate annual principal repayments at December 31, 2023 are as follows (in thousands):

2024	$	8,637,633
2025	178,225
2026	3,225
2027	1,775
2028	—
Thereafter	134,592
Total	$	8,955,450