Other Borrowed Funds Other Borrowed Funds (Tables)

12 Months Ended

Dec. 31, 2022

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, 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	%

	As of				Year Ended
	December 31, 2020				December 31, 2020
	Balance		Rate		Average Balance		Rate		Maximum Outstanding At Any Month End
Funds purchased	$	769,365	0.05	%	$	2,045,795	0.58	%	$	3,311,938
Repurchase agreements	893,021		0.09	%	1,589,746		0.24	%	3,230,097
Other borrowings:
Federal Home Loan Bank advances	200,000		0.29	%	3,393,989		1.00	%	7,500,000
GNMA repurchase liability	19,500		4.35	%	42,771		4.18	%	126,569
Federal Reserve Bank advances	—		—	%	42,464		0.26	%	—
Paycheck protection program liquidity facility	1,635,963		0.35	%	1,152,073		0.35	%	2,013,414
Other	27,507		5.24	%	28,156		5.12	%	49,376
Total other borrowings	1,882,970				4,659,453		0.88	%
Subordinated debentures1	276,005		4.72	%	275,965		5.05	%	276,005
Total other borrowed funds	$	3,821,361			$	8,570,959	0.82	%

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

Aggregate annual principal repayments at December 31, 2022 are as follows (in thousands):

2023	$	6,989,462
2024	3,839
2025	3,964
2026	4,094
2027	2,610
Thereafter	134,521
Total	$	7,138,490