Other Borrowed Funds Other Borrowed Funds (Tables)

12 Months Ended

Dec. 31, 2019

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, 2019				December 31, 2019
	Balance		Rate		Average Balance		Rate		Maximum Outstanding At Any Month End
Funds purchased	3,390,528		1.53	%	2,438,376		2.08	%	3,390,528
Repurchase agreements	427,822		0.50	%	399,785		0.57	%	427,822
Other borrowings:
Federal Home Loan Bank advances	4,500,000		1.79	%	7,122,466		2.44	%	8,000,000
GNMA repurchase liability	15,417		4.32	%	13,746		4.47	%	19,581
Other	11,638		5.09	%	11,144		5.30	%	34,676
Total other borrowings	4,527,055				7,147,356		2.45	%
Subordinated debentures¹	275,923		5.15	%	276,075		5.47	%	275,923
Total other borrowed funds	$	8,621,328			$	10,261,592	2.37	%



	As of				Year Ended
	December 31, 2018				December 31, 2018
	Balance		Rate		Average Balance		Rate		Maximum Outstanding At Any Month End
Funds purchased	402,450		2.34	%	419,322		1.89	%	949,531
Repurchase agreements	615,961		0.36	%	464,582		0.28	%	615,961
Other borrowings:
Federal Home Loan Bank advances	6,100,000		2.65	%	6,207,142		2.06	%	6,500,000
GNMA repurchase liability	15,552		4.43	%	14,783		4.47	%	16,529
Other	8,838		2.90	%	14,516		2.67	%	20,422
Total other borrowings	6,124,390				6,236,441		2.07	%
Subordinated debentures¹	275,913		5.34	%	177,884		5.52	%	275,913
Total other borrowed funds	$	7,418,714			$	7,298,229	2.03	%



	As of				Year Ended
	December 31, 2017				December 31, 2017
	Balance		Rate		Average Balance		Rate		Maximum Outstanding At Any Month End
Funds purchased	58,628		1.00	%	58,064		0.73	%	80,967
Repurchase agreements	516,335		0.17	%	433,791		0.10	%	536,094
Other borrowings:
Federal Home Loan Bank advances	5,100,000		1.47	%	5,882,466		1.13	%	6,200,000
GNMA repurchase liability	19,947		4.22	%	20,509		4.59	%	24,139
Other	14,950		2.61	%	16,317		3.35	%	18,610
Total other borrowings	5,134,897				5,919,292		1.15	%
Subordinated debentures¹	144,677		5.60	%	147,954		5.57	%	151,875
Total other borrowed funds	$	5,854,537			$	6,559,101	1.18	%

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

Aggregate annual principal repayments at December 31, 2019 are as follows (in thousands):



2020	$	8,335,742
2021	1,244
2022	575
2023	1,454
2024	3,599
Thereafter	278,714
Total	$	8,621,328

Schedule of Repurchase Agreements [Table Text Block]

Additional information relating to securities sold under agreements to repurchase and related liabilities at December 31, 2019 and 2018 is as follows (dollars in thousands):



	December 31, 2019
	Amortized		Fair		Repurchase
Security Sold/Maturity	Cost		Value		Liability¹		Rate

U.S. government agency mortgage-backed securities:
Overnight¹	$	431,939	$	435,898	$	427,822	0.50	%
Long-term	—		—		—		—	%
Total Agency Securities	$	431,939	$	435,898	$	427,822	0.50	%

	December 31, 2018
	Amortized		Fair		Repurchase
Security Sold/Maturity	Cost		Value		Liability¹		Rate

U.S. government agency mortgage-backed securities:
Overnight¹	$	636,864	$	628,229	$	615,961	0.36	%
Long-term	—		—		—		—	%
Total Agency Securities	$	636,864	$	628,229	$	615,961	0.36	%


¹	BOK Financial maintains control over the securities underlying overnight repurchase agreements and generally transfers control over securities underlying longer-term dealer repurchase agreements to the respective counterparty.