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, 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 | % | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 | % | | |
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Schedule of Repurchase Agreements [Table Text Block] |
Additional information relating to securities sold under agreements to repurchase and related liabilities at December 31, 2020 and 2019 is as follows (dollars in thousands): | | | | | | | | | | | | | | | | | | | | | | | | | | | | | December 31, 2020 | | | Amortized | | Fair | | Repurchase | | | Security Sold/Maturity | | Cost | | Value | | Liability1 | | Rate | | | | | | | | | | U.S. government agency mortgage-backed securities: | | | | | | | | | Overnight1 | | $ | 893,069 | | | $ | 910,885 | | | $ | 893,021 | | | 0.09 | % | Long-term | | — | | | — | | | — | | | — | % | Total Agency Securities | | $ | 893,069 | | | $ | 910,885 | | | $ | 893,021 | | | 0.09 | % | | | | | | | | | | | | 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 | % |
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.
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