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Fair Value Measurements
6 Months Ended
Jun. 30, 2020
Fair Value Disclosures [Abstract]  
Fair Value Measurements [Text Block] Fair Value Measurements
Fair value is defined by applicable accounting guidance as the price to sell an asset or transfer a liability in an orderly transaction between market participants in the principal market for the given asset or liability at the measurement date based on market conditions at that date. An orderly transaction assumes exposure to the market for a customary period for marketing activities prior to the measurement date and not a forced liquidation or distressed sale. Certain assets and liabilities are recorded in the Company’s financial statements at fair value. Some are recorded on a recurring basis and some on a non-recurring basis.

For some assets and liabilities, observable market transactions and market information might be available. For other assets and liabilities, observable market transactions and market information might not be available. A hierarchy for fair value has been established which categorizes into three levels the inputs to valuation techniques used to measure fair value. The three levels are as follows:

Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1) - Fair value is based on unadjusted quoted prices in active markets for identical assets or liabilities.

Significant Other Observable Inputs (Level 2) - Fair value is based on significant other observable inputs which are generally determined based on a single price for each financial instrument provided to us by an applicable third-party pricing service and is based on one or more of the following:

Quoted prices for similar, but not identical, assets or liabilities in active markets;
Quoted prices for identical or similar assets or liabilities in inactive markets;
Inputs other than quoted prices that are observable, such as interest rate and yield curves, volatilities, prepayment speeds, loss severities, credit risks and default rates;
Other inputs derived from or corroborated by observable market inputs.

Significant Unobservable Inputs (Level 3) - Fair value is based upon model-based valuation techniques for which at least one significant assumption is not observable in the market.

Transfers between levels are recognized as of the end of the reporting period. There were no transfers in or out of quoted prices in active markets for identical instruments to significant other observable inputs or significant unobservable inputs during the six months ended June 30, 2020 and 2019, respectively. Transfers between significant other observable inputs and significant unobservable inputs during the six months ended June 30, 2020 and 2019 are included in the summary of changes in recurring fair values measured using unobservable inputs.

The underlying methods used by the third-party pricing services are considered in determining the primary inputs used to determine fair values. Management has evaluated the methodologies employed by the third-party pricing services by comparing the price provided by the pricing service with other sources, including brokers' quotes, sales or purchases of similar instruments and discounted cash flows to establish a basis for reliance on the pricing service values. Significant differences between the pricing service provided value and other sources are discussed with the pricing service to understand the basis for their values. Based on all observable inputs, management may adjust prices obtained from third-party pricing services to more appropriately reflect the prices that would be received to sell assets or paid to transfer liabilities in orderly transactions in the current market. No significant adjustments were made to prices provided by third-party pricing services at June 30, 2020 or December 31, 2019.
Assets and Liabilities Measured at Fair Value on a Recurring Basis

The fair value of financial assets and liabilities measured on a recurring basis was as follows as of June 30, 2020 (in thousands):
 TotalQuoted Prices in Active Markets for Identical Instruments (Level 1)Significant Other Observable Inputs (Level 2)Significant Unobservable Inputs
(Level 3)
Assets:    
Trading securities:
U.S. government agency debentures$4,237  $—  $4,237  $—  
Residential agency mortgage-backed securities1,146,454  —  1,146,454  —  
Municipal and other tax-exempt securities22,710  —  22,710  —  
Asset-backed securities —   —  
Other trading securities22,699  —  22,699  —  
Total trading securities1,196,105  —  1,196,105  —  
Available for sale securities:    
U.S. Treasury912  912  —  —  
Municipal and other tax-exempt securities31,240  —  31,240  —  
Residential agency mortgage-backed securities9,147,238  —  9,147,238  —  
Residential non-agency mortgage-backed securities35,250  —  35,250  —  
Commercial agency mortgage-backed securities
3,260,807  —  3,260,807  —  
Other debt securities472  —  —  472  
Total available for sale securities12,475,919  912  12,474,535  472  
Fair value option securities:
U.S. Treasury92,742  92,742  —  —  
Residential agency mortgage-backed securities629,915  —  629,915  —  
Total fair value option securities722,657  92,742  629,915  —  
Residential mortgage loans held for sale319,357  —  309,672  9,685  
Mortgage servicing rights1
97,971  —  —  97,971  
Derivative contracts, net of cash collateral2
651,553  66,207  585,346  —  
Liabilities: 
Derivative contracts, net of cash collateral2
610,020  —  610,020  —  
1A reconciliation of the beginning and ending fair value of mortgage servicing rights and disclosures of significant assumptions used to determine fair value are presented in Note 5, Mortgage Banking Activities.
2See Note 3 for detail of fair value of derivative contracts by contract type. Derivative contracts in asset positions that were valued based on quoted prices in active markets for identical instruments (Level 1) are primarily exchange-traded energy and interest rate derivative contacts, net of cash margin. Derivative contacts in liability positions that were valued using quoted prices in active markets for identical instruments are exchange-traded interest rate and agricultural derivative contracts, fully offset by cash margin.
The fair value of financial assets and liabilities measured on a recurring basis was as follows as of December 31, 2019 (in thousands):
 TotalQuoted Prices in Active Markets for Identical Instruments (Level 1)Significant Other Observable Inputs (Level 2)Significant Unobservable Inputs
(Level 3)
Assets:    
Trading securities:
U.S. government agency debentures$44,264  $—  $44,264  $—  
Residential agency mortgage-backed securities1,504,651  —  1,504,651  —  
Municipal and other tax-exempt securities26,196  —  26,196  —  
Asset-backed securities14,084  —  14,084  —  
Other trading securities34,726  —  34,726  —  
Total trading securities1,623,921  —  1,623,921  —  
Available for sale securities:    
U.S. Treasury1,600  1,600  —  —  
Municipal and other tax-exempt securities1,861  —  1,861  —  
Residential agency mortgage-backed securities8,046,096  —  8,046,096  —  
Residential non-agency mortgage-backed securities41,609  —  41,609  —  
Commercial agency mortgage-backed securities
3,178,005  —  3,178,005  —  
Other debt securities472  —  —  472  
Total available for sale securities11,269,643  1,600  11,267,571  472  
Fair value option securities:
U.S. Treasury9,917  9,917  —  —  
Residential agency mortgage-backed securities1,088,660  —  1,088,660  —  
Total fair value option securities1,098,577  9,917  1,088,660  —  
Residential mortgage loans held for sale182,271  —  173,958  8,313  
Mortgage servicing rights1
201,886  —  —  201,886  
Derivative contracts, net of cash collateral2
323,375  8,944  314,431  —  
Liabilities:
Derivative contracts, net of cash collateral2
251,128  —  251,128  —  
1A reconciliation of the beginning and ending fair value of mortgage servicing rights and disclosures of significant assumptions used to determine fair value are presented in Note 5, Mortgage Banking Activities.
2See Note 3 for detail of fair value of derivative contracts by contract type. Derivative contracts based on quoted prices in active markets for identical instruments (Level 1) are exchange-traded interest rate and energy derivative contacts, net of cash margin. Derivative contracts in liability positions that were valued using quoted prices in active markets for identical instruments (Level 1) are exchange-traded interest rate and agricultural contracts, fully offset by cash margin.
Following is a description of the Company's valuation methodologies used for assets and liabilities measured on a recurring basis:
Securities
The fair values of trading, available for sale and fair value option securities are based on quoted prices for identical instruments in active markets, when available. If quoted prices for identical instruments are not available, fair values are based on significant other observable inputs such as quoted prices of comparable instruments or interest rates and credit spreads, yield curves, volatilities, prepayment speeds and loss severities. The Company has elected to carry all residential mortgage-backed securities guaranteed by U.S. government agencies held as economic hedges against changes in the fair value of mortgage servicing rights at fair value with changes in the fair value recognized in earnings.

The fair value of certain available for sale municipal and other debt securities may be based on significant unobservable inputs. These significant unobservable inputs include limited observed trades, projected cash flows, current credit rating of the issuers and, when applicable, the insurers of the debt and observed trades of similar debt. Discount rates are primarily based on references to interest rate spreads on comparable securities of similar duration and credit rating as determined by the nationally-recognized rating agencies adjusted for a lack of trading volume. Significant unobservable inputs are developed by investment securities professionals involved in the active trading of similar securities. A summary of significant inputs used to value these securities follows. A management committee composed of senior members from the Company's Capital Markets, Risk Management and Finance departments assesses the appropriateness of these inputs quarterly.

Derivatives

All derivative instruments are carried on the balance sheet at fair value. Fair values for exchange-traded contracts are based on quoted prices. Fair values for over-the-counter interest rate, commodity and foreign exchange contracts are based on valuations provided either by third-party dealers in the contracts, quotes provided by independent pricing services, or a third-party provided pricing model that uses significant other observable market inputs.

Credit risk is considered in determining the fair value of derivative instruments. Management determines fair value adjustments based on various risk factors including but not limited to current fair value, probability of default and loss given default.

We also consider our own credit risk in determining the fair value of derivative contracts. Changes in our credit rating would affect the fair value of our derivative liabilities. In the event of a credit downgrade, the fair value of our derivative liabilities would increase.

Residential Mortgage Loans Held for Sale

Residential mortgage loans held for sale are carried on the balance sheet at fair value. The Company has elected to carry all residential mortgage loans originated for sale at fair value. Changes in the fair value of these financial instruments are recognized in earnings. The fair values of residential mortgage loans held for sale are based upon quoted market prices of such loans sold in securitization transactions, including related unfunded loan commitments and forward sales contracts. The fair value of mortgage loans that were unable to be sold to U.S. government agencies were determined using quoted prices of loans that are sold in securitization transactions with a liquidity discount applied.
The following represents the changes for the three and six months ended June 30, 2020 related to assets measured at fair value on a recurring basis using significant unobservable inputs (in thousands):
 Available for sale - Other debt securitiesResidential mortgage loans held for sale
Balance, Mar. 31, 2020$472  $9,574  
Transfer to Level 3 from Level 21
—  1,328  
Purchases—  —  
Proceeds from sales—  (648) 
Redemptions and distributions—  —  
Gain (loss) recognized in earnings:
Mortgage banking revenue—  (569) 
Other comprehensive income (loss):
Net change in unrealized gain (loss)—  —  
Balance, June 30, 2020$472  $9,685  
1  Recurring transfers to Level 3 from Level 2 consist of residential mortgage loans intended for sale to U.S. government agencies that fail to meet conforming standards.
 Available for sale - Other debt securitiesResidential mortgage loans held for sale
Balance, December 31, 2019$472  $8,313  
Transfer to Level 3 from Level 21
—  3,592  
Purchases—  —  
Proceeds from sales—  (1,588) 
Redemptions and distributions—  —  
Gain (loss) recognized in earnings:
Mortgage banking revenue—  (632) 
Other comprehensive income (loss):
Net change in unrealized gain (loss)—  —  
Balance, June 30, 2020$472  $9,685  
Recurring transfers to Level 3 from Level 2 consist of residential mortgage loans intended for sale to U.S. government agencies that fail to meet conforming standards.

The following represents the changes for the three and six months ended June 30, 2019 related to assets measured at fair value on a recurring basis using significant unobservable inputs (in thousands):
 Available for sale - Other debt securitiesResidential mortgage loans held for sale
Balance, Mar. 31, 2019$472  $15,776  
Transfer to Level 3 from Level 21
—  907  
Purchases—  —  
Proceeds from sales—  (998) 
Redemptions and distributions—  —  
Gain (loss) recognized in earnings:
Mortgage banking revenue—  388  
Other comprehensive income (loss):
Net change in unrealized gain (loss)—  —  
Balance, June 30, 2019$472  $16,073  
Recurring transfers to Level 3 from Level 2 consist of residential mortgage loans intended for sale to U.S. government agencies that fail to meet conforming standards.
 Available for sale - Other debt securitiesResidential mortgage loans held for sale
Balance, Dec. 31, 2018$472  $15,207  
Transfer to Level 3 from Level 21
—  1,889  
Purchases—  —  
Proceeds from sales—  (1,379) 
Redemptions and distributions—  —  
Gain (loss) recognized in earnings
Mortgage banking revenue—  356  
Other comprehensive income (loss):
Net change in unrealized gain (loss)—  —  
Balance, June 30, 2019$472  $16,073  
Recurring transfers to Level 3 from Level 2 consist of residential mortgage loans intended for sale to U.S. government agencies that fail to meet conforming standards.


A summary of quantitative information about assets measured at fair value on a recurring basis using Significant Unobservable Inputs (Level 3) as of June 30, 2020 follows (in thousands):
Fair
Value
Valuation Technique(s)Unobservable InputRange
(Weighted Average)
Available for sale securities – Other debt securities
$472  Discounted cash flows
1
Interest rate spread5.23%-5.23% (5.23%)
3
94.30%-94.30% (94.30%)
2
Residential mortgage loans held for sale
9,685  Quoted prices of loans sold in securitization transactions, with a liquidity discount appliedLiquidity discount applied to the market value of mortgage loans qualifying for sale to U.S. government agencies.90.24%
1Discounted cash flows developed using discount rates primarily based on reference to interest rate spreads for comparable securities of similar duration and credit rating as determined by the nationally-recognized rating agencies, adjusted for lack of trading volume.
2Represents fair value as a percentage of par value.
3Interest rate yields used to value investment grade taxable securities based on comparable short-term taxable securities which are generally yielding approximately 1 percent.

A summary of quantitative information about assets measured at fair value on a recurring basis using Significant Unobservable Inputs (Level 3) as of December 31, 2019 follows (in thousands):
Fair
Value
Valuation Technique(s)Unobservable InputRange
(Weighted Average)
Available for sale securities – Other debt securities
$472  Discounted cash flows
1
Interest rate spread7.08%-7.08% (7.08%)
3
94.40%-94.40% (94.40%)
2
Residential mortgage loans held for sale
8,313  Quoted prices of loans sold in securitization transactions, with a liquidity discount appliedLiquidity discount applied to the market value of mortgage loans qualifying for sale to U.S. government agencies.95.23%
1Discounted cash flows developed using discount rates primarily based on reference to interest rate spreads for comparable securities of similar duration and credit rating as determined by the nationally-recognized rating agencies, adjusted for lack of trading volume
2Represents fair value as a percentage of par value.
3Interest rate yields used to value investment grade taxable securities based on comparable short-term taxable securities which are generally yielding less than 3 percent.
Fair Value of Assets and Liabilities Measured on a Non-Recurring Basis

Assets measured at fair value on a non-recurring basis include collateral for certain nonaccruing loans and real property and other assets acquired to satisfy loans, which are based primarily on comparisons to completed sales of similar assets.

The following represents the carrying value of assets measured at fair value on a non-recurring basis (and related losses) during the period. The carrying value represents only those assets with a balance at June 30, 2020 for which the fair value was adjusted during the six months ended June 30, 2020:
Fair Value Adjustments for the
 Carrying Value at June 30, 2020Three Months Ended
June 30, 2020 Recognized in:
Six Months Ended
June 30, 2020 Recognized in:
 Quoted Prices
in Active Markets for Identical Instruments
Significant
Other
Observable
Inputs
Significant
Unobservable
Inputs
Gross charge-offs against allowance for loan lossesNet losses and operating expenses of repossessed assetsGross charge-offs against allowance for loan lossesNet losses (gains) and operating expenses of repossessed assets
Nonaccruing loans$—  $400  $32,448  $13,871  $—  $29,659  $—  
Real estate and other repossessed assets
—  918  400  —   —  131  
 
The following represents the carrying value of assets measured at fair value on a non-recurring basis (and related losses) during the period. The carrying value represents only those assets with a balance at June 30, 2019 for which the fair value was adjusted during the six months ended June 30, 2019:
Fair Value Adjustments for the
 Carrying Value at June 30, 2019Three Months Ended
June 30, 2019 Recognized in:
Six Months Ended
June 30, 2019 Recognized in:
 Quoted Prices
in Active Markets for Identical Instruments
Significant
Other
Observable
Inputs
Significant
Unobservable
Inputs
Gross charge-offs against allowance for loan lossesNet losses and operating expenses of repossessed assetsGross charge-offs against allowance for loan lossesNet losses and operating expenses of repossessed assets
Nonaccruing loans$—  $—  $29,187  $11,335  $—  $20,917  $—  
Real estate and other repossessed assets
—  2,642  427  —  86  —  512  

The fair value of collateral-dependent nonaccruing loans secured by real estate and real estate and other repossessed assets and the related fair value adjustments are generally based on unadjusted third-party appraisals. Our appraisal review policies require appraised values to be supported by observed inputs derived principally from or corroborated by observable market data. Appraisals that are not based on observable inputs or that require significant adjustments or fair value measurements that are not based on third-party appraisals are considered to be based on significant unobservable inputs. Non-recurring fair value measurements of collateral-dependent nonaccruing loans and real estate and other repossessed assets based on significant unobservable inputs are generally due to estimates of current fair values between appraisal dates. Significant unobservable inputs include listing prices for the same or comparable assets, uncorroborated expert opinions or management's knowledge of the collateral or industry. Non-recurring fair value measurements of collateral dependent loans secured by mineral rights are generally determined by our internal staff of engineers on projected cash flows under current market conditions and are based on significant unobservable inputs. Projected cash flows are discounted according to risk characteristics of the underlying oil and gas properties. Assets are evaluated to demonstrate with reasonable certainty that crude oil, natural gas and natural gas liquids can be recovered from known oil and gas reservoirs under existing economic and operating conditions at current prices with existing conventional equipment, operating methods and costs. Significant unobservable inputs are developed by asset management and workout professionals and approved by senior Credit Administration executives.
A summary of quantitative information about Non-recurring Fair Value Measurements based on Significant Unobservable Inputs (Level 3) as of June 30, 2020 follows (in thousands):
Fair ValueValuation Technique(s)Unobservable InputRange
(Weighted Average)
Nonaccruing loans$32,448  Discounted cash flowsManagement knowledge of industry and non-real estate collateral including but not limited to recoverable oil and gas reserves, forward-looking commodity prices, estimated operating costs
0% - 83% (35%)1
Real estate and other repossessed assets
400  Appraised value, as adjusted
Marketability adjustments off appraised value2
87% - 87% (87%)
Represents fair value as a percentage of the unpaid principal balance.
2 Marketability adjustments include consideration of estimated costs to sell which is approximately 10% of the fair value.

A summary of quantitative information about Non-recurring Fair Value Measurements based on Significant Unobservable Inputs (Level 3) as of June 30, 2019 follows (in thousands):
Fair ValueValuation Technique(s)Unobservable InputRange
(Weighted Average)
Nonaccruing loans$29,187  Discounted cash flowsManagement knowledge of industry and non-real estate collateral including but not limited to recoverable oil and gas reserves, forward-looking commodity prices, estimated operating costs
12% - 76% (47%)1
Real estate and other repossessed assets
427  Appraised value, as adjusted
Marketability adjustments off appraised value2
75% - 89% (88%)
1  Represents fair value as a percentage of the unpaid principal balance.
2 Marketability adjustments include consideration of estimated costs to sell which is approximately 10% of the fair value.
Fair Value of Financial Instruments

The following table presents the carrying values and estimated fair values of all financial instruments, including those financial assets and liabilities that are not measured and reported at fair value on a recurring basis or non-recurring basis as of June 30, 2020 (dollars in thousands):
Carrying
Value
Estimated
Fair
Value
Quoted Prices in Active Markets for Identical Instruments (Level 1)Significant Other Observable Inputs
(Level 2)
Significant Unobservable Inputs
(Level 3)
Cash and due from banks$762,453  $762,453  $762,453  $—  $—  
Interest-bearing cash and cash equivalents485,319  485,319  485,319  —  —  
Trading securities:
U.S. government agency debentures4,237  4,237  —  4,237  —  
Residential agency mortgage-backed securities1,146,454  1,146,454  —  1,146,454  —  
Municipal and other tax-exempt securities22,710  22,710  —  22,710  —  
Asset-backed securities  —   —  
Other trading securities22,699  22,699  —  22,699  —  
Total trading securities1,196,105  1,196,105  —  1,196,105  —  
Investment securities:  
Municipal and other tax-exempt securities84,239  88,623  —  88,623  —  
Residential agency mortgage-backed securities9,812  10,734  —  10,734  —  
Other debt securities175,565  199,769  —  8,048  191,721  
Total investment securities269,616  299,126  —  107,405  191,721  
Allowance for credit losses(1,628) —  —  —  —  
Investment securities, net of allowance267,988  299,126  —  107,405  191,721  
Available for sale securities:  
U.S. Treasury912  912  912  —  —  
Municipal and other tax-exempt securities31,240  31,240  —  31,240  —  
Residential agency mortgage-backed securities9,147,238  9,147,238  —  9,147,238  —  
Residential non-agency mortgage-backed securities35,250  35,250  —  35,250  —  
Commercial agency mortgage-backed securities
3,260,807  3,260,807  —  3,260,807  —  
Other debt securities472  472  —  —  472  
Total available for sale securities12,475,919  12,475,919  912  12,474,535  472  
Fair value option securities:
U.S. Treasury
92,742  92,742  92,742  —  —  
Residential agency mortgage-backed securities629,915  629,915  —  629,915  —  
Total fair value option securities722,657  722,657  92,742  629,915  —  
Residential mortgage loans held for sale319,357  319,357  —  309,672  9,685  
Loans:  
Commercial14,158,510  14,038,257  —  —  14,038,257  
Commercial real estate4,554,144  4,558,274  —  —  4,558,274  
Paycheck protection program2,081,428  2,062,278  —  —  2,062,278  
Loans to individuals3,361,808  3,393,293  —  —  3,393,293  
Total loans24,155,890  24,052,102  —  —  24,052,102  
Allowance for loan losses(435,597) —  —  —  —  
Loans, net of allowance23,720,293  24,052,102  —  —  24,052,102  
Mortgage servicing rights97,971  97,971  —  —  97,971  
Derivative instruments with positive fair value, net of cash collateral
651,553  651,553  66,207  585,346  —  
Deposits with no stated maturity31,539,554  31,539,554  —  —  31,539,554  
Time deposits2,352,760  2,367,446  —  —  2,367,446  
Other borrowed funds4,531,165  4,527,814  —  —  4,527,814  
Subordinated debentures275,973  273,293  —  273,293  —  
Derivative instruments with negative fair value, net of cash collateral
610,020  610,020  —  610,020  —  
The following table presents the carrying values and estimated fair values of all financial instruments, including those financial assets and liabilities that are not measured and reported at fair value on a recurring basis or non-recurring basis as of December 31, 2019 (dollars in thousands):
Carrying
Value
Estimated
Fair
Value
Quoted Prices in Active Markets for Identical Instruments (Level 1)Significant Other Observable Inputs
(Level 2)
Significant Unobservable Inputs
(Level 3)
Cash and due from banks$735,836  $735,836  $735,836  $—  $—  
Interest-bearing cash and cash equivalents522,985  522,985  522,985  —  —  
Trading securities:
U.S. government agency debentures44,264  44,264  —  44,264  —  
Residential agency mortgage-backed securities1,504,651  1,504,651  —  1,504,651  —  
Municipal and other tax-exempt securities26,196  26,196  —  26,196  —  
Asset-backed securities14,084  14,084  —  14,084  —  
Other trading securities34,726  34,726  —  34,726  —  
Total trading securities1,623,921  1,623,921  —  1,623,921  —  
Investment securities:  
Municipal and other tax-exempt securities93,653  96,897  —  96,897  —  
Residential agency mortgage-backed securities10,676  11,164  —  11,164  —  
Other debt securities189,089  206,341  —  8,206  198,135  
Total investment securities293,418  314,402  —  116,267  198,135  
Available for sale securities:  
U.S. Treasury1,600  1,600  1,600  —  —  
Municipal and other tax-exempt securities1,861  1,861  —  1,861  —  
Residential agency mortgage-backed securities8,046,096  8,046,096  —  8,046,096  —  
Residential non-agency mortgage-backed securities41,609  41,609  —  41,609  —  
Commercial agency mortgage-backed securities
3,178,005  3,178,005  —  3,178,005  —  
Other debt securities472  472  —  —  472  
Total available for sale securities11,269,643  11,269,643  1,600  11,267,571  472  
Fair value option securities:
U.S. Treasury9,917  9,917  9,917  —  —  
Residential agency mortgage-backed securities1,088,660  1,088,660  —  1,088,660  —  
Total fair value option securities1,098,577  1,098,577  9,917  1,088,660  —  
Residential mortgage loans held for sale182,271  182,271  —  173,958  8,313  
Loans:  
Commercial14,031,650  13,966,221  —  —  13,966,221  
Commercial real estate4,433,783  4,422,717  —  —  4,422,717  
Residential mortgage2,084,172  2,098,093  —  —  2,098,093  
Personal1,201,382  1,202,298  —  —  1,202,298  
Total loans21,750,987  21,689,329  —  —  21,689,329  
Allowance for loan losses(210,759) —  —  —  —  
Loans, net of allowance21,540,228  21,689,329  —  —  21,689,329  
Mortgage servicing rights201,886  201,886  —  —  201,886  
Derivative instruments with positive fair value, net of cash collateral
323,375  323,375  8,944  314,431  —  
Deposits with no stated maturity25,403,319  25,403,319  —  —  25,403,319  
Time deposits2,217,849  2,212,467  —  —  2,212,467  
Other borrowed funds8,345,405  8,315,860  —  —  8,315,860  
Subordinated debentures275,923  284,627  —  284,627  —  
Derivative instruments with negative fair value, net of cash collateral
251,128  251,128  —  251,128  —  

Because no market exists for certain of these financial instruments and management does not intend to sell these financial instruments, the fair values shown in the tables above may not represent values at which the respective financial instruments could be sold individually or in the aggregate at the given reporting date.