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Fair Value Measurements (Tables)
3 Months Ended
Mar. 31, 2014
Fair Value Disclosures [Abstract]  
Fair Value Assets And Liabilities Measured On A Recurring Basis [Table Text Block]
The fair value of financial assets and liabilities that are measured on a recurring basis is as follows as of March 31, 2014 (in thousands):
 
 
Total
 
Quoted Prices in Active Markets for Identical Instruments
 
Significant Other Observable Inputs
 
Significant Unobservable Inputs
Assets:
 
 
 
 
 
 
 
 
Trading securities:
 
 
 
 
 
 
 
 
U.S. Government agency debentures
 
$
28,588

 
$

 
$
28,588

 
$

U.S. agency residential mortgage-backed securities
 
23,595

 

 
23,595

 

Municipal and other tax-exempt securities
 
27,280

 

 
27,280

 

Other trading securities
 
7,108

 

 
7,108

 

Total trading securities
 
86,571

 

 
86,571

 

Available for sale securities:
 
 

 
 

 
 

 
 

U.S. Treasury
 
1,034

 
1,034

 

 

Municipal and other tax-exempt
 
70,065

 

 
54,542

 
15,523

U.S. agency residential mortgage-backed securities
 
7,475,569

 

 
7,475,569

 

Privately issued residential mortgage-backed securities
 
189,248

 

 
189,248

 

Commercial mortgage-backed securities guaranteed by U.S. government agencies
 
2,123,762

 

 
2,123,762

 

Other debt securities
 
35,119

 

 
30,407

 
4,712

Perpetual preferred stock
 
24,281

 

 
24,281

 

Equity securities and mutual funds
 
14,645

 

 
14,645

 

Total available for sale securities
 
9,933,723

 
1,034

 
9,912,454

 
20,235

Fair value option securities:
 
 
 
 
 
 
 
 
U.S. agency residential mortgage-backed securities
 
156,525

 

 
156,525

 

     Other securities
 
4,359

 

 
4,359

 

Total fair value option securities
 
160,884

 

 
160,884

 

Residential mortgage loans held for sale
 
226,512

 

 
226,512

 

Mortgage servicing rights1
 
153,774

 

 

 
153,774

Derivative contracts, net of cash margin2
 
218,507

 
1,363

 
217,144

 

Other assets – private equity funds
 
27,466

 

 

 
27,466

Liabilities:
 
 

 
 
 
 
 
 
Derivative contracts, net of cash margin2
 
185,499

 

 
185,499

 

1 
A 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 6, Mortgage Banking Activities.
2 
See 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 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 market for identical instruments are exchange-traded energy, agricultural and interest rate derivative contracts that were fully offset by cash margin.

The fair value of financial assets and liabilities that are measured on a recurring basis is as follows as of December 31, 2013 (in thousands):
 
 
Total
 
Quoted Prices in Active Markets for Identical Instruments
 
Significant Other Observable Inputs
 
Significant Unobservable Inputs
Assets:
 
 
 
 
 
 
 
 
Trading securities:
 
 
 
 
 
 
 
 
U.S. Government agency debentures
 
$
34,120

 
$

 
$
34,120

 
$

U.S. agency residential mortgage-backed securities
 
21,011

 

 
21,011

 

Municipal and other tax-exempt securities
 
27,350

 

 
27,350

 

Other trading securities
 
9,135

 

 
9,135

 

Total trading securities
 
91,616

 

 
91,616

 

Available for sale securities:
 
 

 
 

 
 

 
 

U.S. Treasury
 
1,042

 
1,042

 

 

Municipal and other tax-exempt
 
73,775

 

 
55,970

 
17,805

U.S. agency residential mortgage-backed securities
 
7,716,010

 

 
7,716,010

 

Privately issued residential mortgage-backed securities
 
221,099

 

 
221,099

 

Commercial mortgage-backed securities guaranteed by U.S. government agencies
 
2,055,804

 

 
2,055,804

 

Other debt securities
 
35,241

 

 
30,529

 
4,712

Perpetual preferred stock
 
22,863

 

 
22,863

 

Equity securities and mutual funds
 
21,328

 

 
17,121

 
4,207

Total available for sale securities
 
10,147,162

 
1,042

 
10,119,396

 
26,724

Fair value option securities:
 
 
 
 
 
 
 
 
U.S. agency residential mortgage-backed securities
 
157,431

 

 
157,431

 

     Other securities
 
9,694

 

 
9,694

 

Total fair value option securities
 
167,125

 

 
167,125

 

Residential mortgage loans held for sale
 
200,546

 

 
200,546

 

Mortgage servicing rights1
 
153,333

 

 

 
153,333

Derivative contracts, net of cash margin2
 
265,012

 
2,712

 
262,300

 

Other assets – private equity funds
 
27,341

 

 

 
27,341

Liabilities:
 


 
 
 
 
 
 
Derivative contracts, net of cash margin 2
 
247,185

 

 
247,185

 

1 
A 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 6, Mortgage Banking Activities.
2 
See 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 energy derivative contacts, net of cash margin.


The fair value of financial assets and liabilities that are measured on a recurring basis is as follows as of March 31, 2013 (in thousands):
 
 
Total
 
Quoted Prices in
Active Markets for Identical Instruments
 
Significant Other Observable Inputs
 
Significant Unobservable Inputs
Assets:
 
 
 
 
 
 
 
 
Trading securities:
 
 
 
 
 
 
 
 
U.S. Government agency debentures
 
$
55,358

 
$

 
$
55,358

 
$

U.S. agency residential mortgage-backed securities
 
33,106

 

 
33,106

 

Municipal and other tax-exempt securities
 
90,710

 

 
90,710

 

Other trading securities
 
27,424

 

 
27,424

 

Total trading securities
 
206,598

 

 
206,598

 

Available for sale securities:
 
 

 
 

 
 

 
 

U.S. Treasury
 
1,000

 
1,000

 

 

Municipal and other tax-exempt
 
85,447

 

 
46,440

 
39,007

U.S. agency residential mortgage-backed securities
 
9,165,212

 

 
9,165,212

 

Privately issued residential mortgage-backed securities
 
316,208

 

 
316,208

 

Commercial mortgage-backed securities guaranteed by U.S. government agencies
 
1,405,346

 

 
1,405,346

 

Other debt securities
 
36,079

 

 
30,886

 
5,193

Perpetual preferred stock
 
26,832

 

 
26,832

 

Equity securities and mutual funds
 
23,021

 
4,571

 
15,978

 
2,472

Total available for sale securities
 
11,059,145

 
5,571

 
11,006,902

 
46,672

Fair value option securities:
 
 
 
 
 
 
 
 
U.S. agency residential mortgage-backed securities
 
208,900

 

 
208,900

 

Other securities
 
1,292

 

 
1,292

 

Total fair value option securities
 
210,192

 

 
210,192

 

Residential mortgage loans held for sale
 
286,211

 

 
286,211

 

Mortgage servicing rights1
 
109,840

 

 

 
109,840

Derivative contracts, net of cash margin 2
 
320,473

 
457

 
320,016

 

Other assets – private equity funds
 
29,216

 

 

 
29,216

Liabilities:
 
 

 
 
 
 
 
 
Derivative contracts, net of cash margin 2
 
251,836

 

 
251,836

 

1 
A 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 6, Mortgage Banking Activities.
2 
See 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 energy and agricultural derivative contacts, net of cash margin.

Fair Value Assets Measured On Recurring Basis, Significant Unobservable Inputs [Table Text Block]
The following represents the changes for the three months ended March 31, 2014 related to assets measured at fair value on a recurring basis using significant unobservable inputs (in thousands):
 
 
Available for Sale Securities
 
 
 
 
Municipal and other tax-exempt
 
Other debt securities
 
Equity securities and mutual funds
 
Other assets – private equity funds
Balance, December 31, 2013
 
$
17,805

 
$
4,712

 
$
4,207

 
$
27,341

Transfer to Level 3 from Level 2
 

 

 

 

Purchases and capital calls
 

 

 

 
205

Redemptions and distributions
 
(2,322
)
 

 

 
(1,105
)
Gain (loss) recognized in earnings:
 
 
 
 
 
 
 
 
Gain on other assets, net
 

 

 

 
1,025

Gain on available for sale securities, net
 
(78
)
 

 

 

Other-than-temporary impairment losses
 

 

 

 

Charitable contributions to BOKF Foundation
 

 

 
(2,420
)
 

Other comprehensive gain (loss)
 
118

 

 
(1,787
)
 

Balance, March 31, 2014
 
$
15,523

 
$
4,712

 
$

 
$
27,466


The following represents the changes for the three months ended March 31, 2013 related to assets measured at fair value on a recurring basis using significant unobservable inputs (in thousands):
 
 
Available for Sale Securities
 
 
 
 
Municipal and other tax-exempt
 
Other debt securities
 
Equity securities and mutual funds
 
Other assets – private equity funds
Balance, December 31, 2012
 
$
40,702

 
$
5,399

 
$
2,161

 
$
28,169

Transfer to Level 3 from Level 2
 

 

 

 

Purchases, and capital calls
 

 

 

 
492

Redemptions and distributions
 
(98
)
 

 

 
(830
)
Gain (loss) recognized in earnings
 
 
 
 
 
 
 
 
Gain on other assets, net
 

 

 

 
1,385

Gain on available for sale securities, net
 

 

 

 

Other-than-temporary impairment losses
 

 

 

 

Other comprehensive (loss)
 
(1,597
)
 
(206
)
 
311

 

Balance, March 31, 2013
 
$
39,007

 
$
5,193

 
$
2,472

 
$
29,216



Fair Value Inputs, Fair Value Measured On a Recurring Basis, Quantitative Information [Table Text Block]
A summary of quantitative information about assets measured at fair value on a recurring basis using significant unobservable inputs (Level 3) as of March 31, 2014 follows (in thousands):
Quantitative Information about Level 3 Recurring Fair Value Measurements
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Par
Value
 
Amortized
Cost
 
Fair
Value
 
Valuation Technique(s)
 
Unobservable Input
 
Range
(Weighted Average)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Available for sale securities
 
 
 
 
 
 
 
 
 
 
 
 
 
Municipal and other tax-exempt securities
 
$
16,295

 
$
16,224

 
$
15,523

 
Discounted cash flows
1 
Interest rate spread
 
4.95%-5.25% (5.13%)
2 
95.05%-95.49% (95.26%)
3 
Other debt securities
 
4,900

 
4,900

 
4,712

 
Discounted cash flows
1 
Interest rate spread
 
5.46%-5.66% (5.63%)
4 
96.16% (96.16%)
3 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Other assets - private equity funds
 
N/A
 
N/A
 
27,466

 
Net asset value reported by underlying fund
 
Net asset value reported by underlying fund
 
N/A
 
1 
Discounted 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
2 
Interest rate yields used to value investment grade tax-exempt securities represent a spread of 468 to 515 basis points over average yields for comparable tax-exempt securities.
3 
Represents fair value as a percentage of par value
4 
Interest rate yields used to value investment grade taxable securities based on comparable short-term taxable securities which are generally yielding less than 1%.



The fair value of these securities measured at fair value using significant unobservable inputs are sensitive primarily to changes in interest rate spreads. At March 31, 2014, for tax-exempt securities rated investment grade by all nationally-recognized rating agencies, a 100 basis point increase in the spreads over average yields for comparable securities would result in an additional decrease in the fair value of $150 thousand. For taxable securities rated investment grade by all nationally-recognized rating agencies, a 100 basis point increase in the spreads over average yield for comparable securities would result in an additional decrease in the fair value of $45 thousand. For municipal and other tax-exempt securities rated below investment grade by at least one of the nationally-recognized rating agencies, a 100 basis point increase in the spread over average yields for comparable securities would significantly change the fair value of these securities.

A summary of quantitative information about Recurring Fair Value Measurements based on Significant Unobservable Inputs (Level 3) as of December 31, 2013 follows (in thousands):
Quantitative Information about Level 3 Recurring Fair Value Measurements
 
 
Par
Value
 
Amortized
Cost
 
Fair
Value
 
Valuation Technique(s)
 
Unobservable Input
 
Range
(Weighted Average)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Available for sale securities
 
 
 
 
 
 
 
 
 
 
 
 
 
Municipal and other tax-exempt securities
 
$
18,695

 
$
18,624

 
$
17,805

 
Discounted cash flows
1 
Interest rate spread
 
4.97%-5.27% (5.16%)
2 
95.02%-95.50% (95.24%)
3 
Other debt securities
 
4,900

 
4,900

 
4,712

 
Discounted cash flows
1 
Interest rate spread
 
5.67% (5.67%)
4 
96.16% (96.16%)
3 
Equity securities and mutual funds
 
N/A
 
2,420

 
4,207

 
Publicly announced preliminary purchase price information from acquirer.
 
Discount for settlement uncertainty.
 
N/A
5 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Other assets - private equity funds
 
N/A
 
N/A
 
27,341

 
Net asset value reported by underlying fund
 
Net asset value reported by underlying fund
 
N/A
 
1 
Discounted 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
2 
Interest rate yields used to value investment grade tax-exempt securities represent a spread of 467 to 518 basis points over average yields for comparable tax-exempt securities.
3 
Represents fair value as a percentage of par value
4 
Interest rate yields used to value investment grade taxable securities based on comparable short-term taxable securities which are generally yielding less than 1%.
5 
Fair value of shares of a smaller privately-held financial institution were valued using preliminary announced purchase information by a publicly-traded acquirer.



A summary of quantitative information about Recurring Fair Value Measurements based on Significant Unobservable Inputs (Level 3) as of March 31, 2013 follows (in thousands):

Quantitative Information about Level 3 Recurring Fair Value Measurements
 
 
Par
Value
 
Amortized
Cost6
 
Fair
Value
 
Valuation Technique(s)
 
Unobservable Input
 
Range
(Weighted Average)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Available for sale securities
 
 
 
 
 
 
 
 
 
 
 
 
 
Municipal and other tax-exempt securities
 
 
 
 
 
 
 
 
 
 
 
 
 
Investment grade
 
$
28,470

 
$
28,374

 
$
27,120

 
Discounted cash flows
1 
Interest rate spread
 
5.00%-5.50% (5.25%)
2 
95.01%-95.59% (95.26%)
3 
Below investment grade
 
17,000

 
12,384

 
11,887

 
Discounted cash flows
1 
Interest rate spread
 
8.80%-11.20% (9.54%)
4 
69.86%-70.04% (69.92%)
3 
Total municipal and other tax-exempt securities
 
45,470

 
40,758

 
39,007

 
 
 
 
 
 
 
Other debt securities
 
5,400

 
5,400

 
5,193

 
Discounted cash flows
1 
Interest rate spread
 
5.44%-5.71% (5.68%)
5 
96.16% (96.16%)
3 
Equity securities and mutual funds
 
N/A
 
2,420

 
2,472

 
Tangible book value per share of publicly traded financial institutions of similar size, less liquidity discount.
 
Peer group tangible book per share and liquidity discount.
 
N/A
7 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Other assets - private equity funds
 
N/A
 
N/A
 
29,216

 
Net asset value reported by underlying fund
 
Net asset value reported by underlying fund
 
N/A
 
1 
Discounted 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
2 
Interest rate yields used to value investment grade tax-exempt securities represent a spread of 458 to 519 basis points over average yields for comparable tax-exempt securities.
3 
Represents fair value as a percentage of par value
4 
Interest rate yields determined using a spread of 700 basis points over comparable municipal securities of varying durations.
5 
Interest rate yields used to value investment grade taxable securities based on comparable short-term taxable securities which are generally yielding less than 1%.
6 
Amortized cost reduced by other-than-temporary impairments recorded in earnings. See Note 2 for additional discussion.
7 
Fair value of shares of a smaller privately-held financial institution were valued using the tangible book value per share of similarly sized financial institutions within the immediate geographical market with a discount of 20% due to the liquidity of the shares.
Fair Value Assets Measured on Nonrecurring Basis [Table Text Block]
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 March 31, 2014 for which the fair value was adjusted during the three months ended March 31, 2014:
 
 
 
 
 
 
 
Fair Value Adjustments for the
 
Carrying Value at March 31, 2014
 
Three Months Ended
March 31, 2014
Recognized in:
 
Quoted Prices
in Active Markets for Identical Instruments
 
Significant
Other
Observable
Inputs
 
Significant
Unobservable
Inputs
 
Gross charge-offs against allowance for loan losses
 
Net losses and expenses of repossessed assets, net
Impaired loans
$

 
$
3,015

 
$
1,541

 
$
953

 
$

Real estate and other repossessed assets

 
4,833

 

 

 
1,251

 
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 March 31, 2013 for which the fair value was adjusted during the three months ended March 31, 2013:
 
 
 
 
 
 
 
Fair Value Adjustments for the
 
Carrying Value at March 31, 2013
 
Three Months Ended
March 31, 2013
Recognized in:
 
Quoted Prices
in Active Markets for Identical Instruments
 
Significant
Other
Observable
Inputs
 
Significant
Unobservable
Inputs
 
Gross charge-offs against allowance for loan losses
 
Net losses and expenses of repossessed assets, net
Impaired loans
$

 
$
14,448

 
$
2,197

 
$
7,485

 
$

Real estate and other repossessed assets

 
5,166

 
607

 

 
661

Fair Value Inputs, Fair Value Measured On a Nonrecurring Basis, Quantitative Information [Table Text Block]
A summary of quantitative information about Non-recurring Fair Value Measurements based on Significant Unobservable Inputs (Level 3) as of March 31, 2014 follows (in thousands):
Quantitative Information about Level 3 Non-recurring Fair Value Measurements
 
 
Fair Value
 
Valuation Technique(s)
 
Unobservable Input
 
Range
(Weighted Average)
Impaired loans
 
$
1,541

 
Appraised value, as adjusted
 
Broker quotes and management's knowledge of industry and collateral.
 
N/A



A summary of quantitative information about Non-recurring Fair Value Measurements based on Significant Unobservable Inputs (Level 3) as of March 31, 2013 follows (in thousands):
Quantitative Information about Level 3 Non-recurring Fair Value Measurements
 
 
Fair Value
 
Valuation Technique(s)
 
Unobservable Input
 
Range
(Weighted Average)
Impaired loans
 
$
2,197

 
Appraised value, as adjusted
 
Broker quotes and management's knowledge of industry and collateral.
 
N/A
Real estate and other repossessed assets
 
607

 
Listing value, less cost to sell
 
Marketability adjustments off appraised value
 
73%-85% (77%)1
1 
Marketability adjustments include consideration of estimated costs to sell which is approximately 15% of fair value.
Fair Value of Financial Instruments [Table Text Block]
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 March 31, 2014 (dollars in thousands):
 
 
Carrying
Value
 
Range of
Contractual
Yields
 
Average
Re-pricing
(in years)
 
Discount
Rate
 
Estimated
Fair
Value
Cash and due from banks
 
$
645,435

 
 
 
 
 
 
 
$
645,435

Interest-bearing cash and cash equivalents
 
708,571

 
 
 
 
 
 
 
708,571

Trading securities:
 
 
 
 
 
 
 
 
 
 
U.S. Government agency debentures
 
28,588

 
 
 
 
 
 
 
28,588

U.S. agency residential mortgage-backed securities
 
23,595

 
 
 
 
 
 
 
23,595

Municipal and other tax-exempt securities
 
27,280

 
 
 
 
 
 
 
27,280

Other trading securities
 
7,108

 
 
 
 
 
 
 
7,108

Total trading securities
 
86,571

 
 
 
 
 
 
 
86,571

Investment securities:
 
 

 
 
 
 
 
 
 
 

Municipal and other tax-exempt
 
440,303

 
 
 
 
 
 
 
441,532

U.S. agency residential mortgage-backed securities
 
45,917

 
 
 
 
 
 
 
47,834

Other debt securities
 
182,756

 
 
 
 
 
 
 
195,697

Total investment securities
 
668,976

 
 
 
 
 
 
 
685,063

Available for sale securities:
 
 

 
 
 
 
 
 
 
 

U.S. Treasury
 
1,034

 
 
 
 
 
 
 
1,034

Municipal and other tax-exempt
 
70,065

 
 
 
 
 
 
 
70,065

U.S. agency residential mortgage-backed securities
 
7,475,569

 
 
 
 
 
 
 
7,475,569

Privately issued residential mortgage-backed securities
 
189,248

 
 
 
 
 
 
 
189,248

Commercial mortgage-backed securities guaranteed by U.S. government agencies
 
2,123,762

 
 
 
 
 
 
 
2,123,762

Other debt securities
 
35,119

 
 
 
 
 
 
 
35,119

Perpetual preferred stock
 
24,281

 
 
 
 
 
 
 
24,281

Equity securities and mutual funds
 
14,645

 
 
 
 
 
 
 
14,645

Total available for sale securities
 
9,933,723

 
 
 
 
 
 
 
9,933,723

Fair value option securities:
 
 
 
 
 
 
 
 
 
 
U.S. agency residential mortgage-backed securities
 
156,525

 
 
 
 
 
 
 
156,525

      Other securities
 
4,359

 
 
 
 
 
 
 
4,359

Total fair value option securities
 
160,884

 
 
 
 
 
 
 
160,884

Residential mortgage loans held for sale
 
226,512

 
 
 
 
 
 
 
226,512

Loans:
 
 

 
 
 
 
 
 
 
 

Commercial
 
8,051,706

 
0.15% - 30.00%
 
0.52

 
0.55% - 4.28%

 
7,941,638

Commercial real estate
 
2,631,407

 
0.38% - 18.00%
 
0.74

 
1.15% - 3.54%

 
2,609,622

Residential mortgage
 
2,018,675

 
0.01% - 18.00%
 
2.60

 
0.57% - 4.54%

 
2,040,336

Consumer
 
376,066

 
0.38% - 21.00%
 
0.50

 
1.14% - 3.80%

 
370,885

Total loans
 
13,077,854

 
 
 
 

 
 

 
12,962,481

Allowance for loan losses
 
(188,318
)
 
 
 
 

 
 

 

Net loans
 
12,889,536

 
 
 
 

 
 

 
12,962,481

Mortgage servicing rights
 
153,774

 
 
 
 

 
 

 
153,774

Derivative instruments with positive fair value, net of cash margin
 
218,507

 
 
 
 

 
 

 
218,507

Other assets – private equity funds
 
27,466

 
 
 
 

 
 

 
27,466

Deposits with no stated maturity
 
17,727,539

 
 
 
 

 
 

 
17,727,539

Time deposits
 
2,662,174

 
0.03% - 9.64%
 
2.08

 
0.74% - 1.32%

 
2,664,770

Other borrowed funds
 
2,974,979

 
0.23% - 4.50%
 
0.11

 
0.06% - 2.62%

 
2,960,177

Subordinated debentures
 
347,846

 
0.95% - 5.00%
 
2.40

 
2.21
%
 
344,717

Derivative instruments with negative fair value, net of cash margin
 
185,499

 
 
 
 

 
 

 
185,499

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, 2013 (dollars in thousands):
 
 
Carrying
Value
 
Range of
Contractual
Yields
 
Average
Re-pricing
(in years)
 
Discount
Rate
 
Estimated
Fair
Value
Cash and due from banks
 
$
512,931

 
 
 
 
 
 
 
$
512,931

Interest-bearing cash and cash equivalents
 
574,282

 
 
 
 
 
 
 
574,282

Trading securities:
 
 
 
 
 
 
 
 
 
 
U.S. Government agency debentures
 
34,120

 
 
 
 
 
 
 
34,120

U.S. agency residential mortgage-backed securities
 
21,011

 
 
 
 
 
 
 
21,011

Municipal and other tax-exempt securities
 
27,350

 
 
 
 
 
 
 
27,350

Other trading securities
 
9,135

 
 
 
 
 
 
 
9,135

Total trading securities
 
91,616

 
 
 
 
 
 
 
91,616

Investment securities:
 
 

 
 
 
 
 
 
 
 

Municipal and other tax-exempt
 
440,187

 
 
 
 
 
 
 
439,870

U.S. agency residential mortgage-backed securities
 
50,182

 
 
 
 
 
 
 
51,864

Other debt securities
 
187,509

 
 
 
 
 
 
 
195,393

Total investment securities
 
677,878

 
 
 
 
 
 
 
687,127

Available for sale securities:
 
 

 
 
 
 
 
 
 
 

U.S. Treasury
 
1,042

 
 
 
 
 
 
 
1,042

Municipal and other tax-exempt
 
73,775

 
 
 
 
 
 
 
73,775

U.S. agency residential mortgage-backed securities
 
7,716,010

 
 
 
 
 
 
 
7,716,010

Privately issued residential mortgage-backed securities
 
221,099

 
 
 
 
 
 
 
221,099

Commercial mortgage-backed securities guaranteed by U.S. government agencies
 
2,055,804

 
 
 
 
 
 
 
2,055,804

Other debt securities
 
35,241

 
 
 
 
 
 
 
35,241

Perpetual preferred stock
 
22,863

 
 
 
 
 
 
 
22,863

Equity securities and mutual funds
 
21,328

 
 
 
 
 
 
 
21,328

Total available for sale securities
 
10,147,162

 
 
 
 
 
 
 
10,147,162

Fair value option securities:
 
 
 
 
 
 
 
 
 
 
U.S. agency residential mortgage-backed securities
 
157,431

 
 
 
 
 
 
 
157,431

      Other securities
 
9,694

 
 
 
 
 
 
 
9,694

Total fair value option securities
 
167,125

 
 
 
 
 
 
 
167,125

Residential mortgage loans held for sale
 
200,546

 
 
 
 
 
 
 
200,546

Loans:
 
 

 
 
 
 

 
 

 
 

Commercial
 
7,943,221

 
0.04% - 30.00%
 
0.49

 
0.48% - 4.33%

 
7,835,325

Commercial real estate
 
2,415,353

 
0.38% - 18.00%
 
0.78

 
1.21% - 3.49%

 
2,394,443

Residential mortgage
 
2,052,026

 
0.38% - 18.00%
 
2.63

 
0.59% - 4.73%

 
2,068,690

Consumer
 
381,664

 
0.38% - 21.00%
 
0.55

 
1.22% - 3.75%

 
375,962

Total loans
 
12,792,264

 
 
 
 

 
 

 
12,674,420

Allowance for loan losses
 
(185,396
)
 
 
 
 

 
 

 

Net loans
 
12,606,868

 
 
 
 

 
 

 
12,674,420

Mortgage servicing rights
 
153,333

 
 
 
 

 
 

 
153,333

Derivative instruments with positive fair value, net of cash margin
 
265,012

 
 
 
 

 
 

 
265,012

Other assets – private equity funds
 
27,341

 
 
 
 

 
 

 
27,341

Deposits with no stated maturity
 
17,573,334

 
 
 
 

 
 

 
17,573,334

Time deposits
 
2,695,993

 
0.01% - 9.64%
 
2.12

 
0.75% - 1.33%

 
2,697,290

Other borrowed funds
 
2,721,888

 
0.25% - 4.78%
 
0.03

 
0.08% - 2.64%

 
2,693,788

Subordinated debentures
 
347,802

 
0.95% - 5.00%
 
2.63

 
2.22
%
 
344,783

Derivative instruments with negative fair value, net of cash margin
 
247,185

 
 
 
 

 
 

 
247,185


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 March 31, 2013 (dollars in thousands):
 
 
Carrying
Value
 
Range of
Contractual
Yields
 
Average
Re-pricing
(in years)
 
Discount
Rate
 
Estimated
Fair
Value
Cash and due from banks
 
$
458,471

 
 
 
 
 
 
 
$
458,471

Interest-bearing cash and cash equivalents
 
487,146

 
 
 
 
 
 
 
487,146

Trading securities:
 
 
 
 
 
 
 
 
 
 
U.S. Government agency debentures
 
55,358

 
 
 
 
 
 
 
55,358

U.S. agency residential mortgage-backed securities
 
33,106

 
 
 
 
 
 
 
33,106

Municipal and other tax-exempt securities
 
90,710

 
 
 
 
 
 
 
90,710

Other trading securities
 
27,424

 
 
 
 
 
 
 
27,424

Total trading securities
 
206,598

 
 
 
 
 
 
 
206,598

Investment securities:
 
 

 
 
 
 
 
 
 
 

Municipal and other tax-exempt
 
339,003

 
 
 
 
 
 
 
341,940

U.S. agency residential mortgage-backed securities
 
72,968

 
 
 
 
 
 
 
76,851

Other debt securities
 
177,300

 
 
 
 
 
 
 
196,403

Total investment securities
 
589,271

 
 
 
 
 
 
 
615,194

Available for sale securities:
 
 

 
 
 
 
 
 
 
 

U.S. Treasury
 
1,000

 
 
 
 
 
 
 
1,000

Municipal and other tax-exempt
 
85,447

 
 
 
 
 
 
 
85,447

U.S. agency residential mortgage-backed securities
 
9,165,212

 
 
 
 
 
 
 
9,165,212

Privately issued residential mortgage-backed securities
 
316,208

 
 
 
 
 
 
 
316,208

Commercial mortgage-backed securities guaranteed by U.S. government agencies
 
1,405,346

 
 
 
 
 
 
 
1,405,346

Other debt securities
 
36,079

 
 
 
 
 
 
 
36,079

Perpetual preferred stock
 
26,832

 
 
 
 
 
 
 
26,832

Equity securities and mutual funds
 
23,021

 
 
 
 
 
 
 
23,021

Total available for sale securities
 
11,059,145

 
 
 
 
 
 
 
11,059,145

Fair value option securities:
 
 
 
 
 
 
 
 
 
 
U.S. agency residential mortgage-backed securities
 
208,900

 
 
 
 
 
 
 
208,900

Other securities
 
1,292

 
 
 
 
 
 
 
1,292

Total fair value option securities
 
210,192

 
 
 
 
 
 
 
210,192

Residential mortgage loans held for sale
 
286,211

 
 
 
 
 
 
 
286,211

Loans:
 
 

 
 
 
 
 
 
 
 

Commercial
 
7,418,305

 
0.25% - 30.00%
 
0.66

 
0.55% - 3.69%

 
7,372,375

Commercial real estate
 
2,285,160

 
0.38% - 18.00%
 
0.84

 
1.19% - 3.21%

 
2,266,433

Residential mortgage
 
2,012,450

 
0.38% - 18.00%
 
3.53

 
0.74% - 3.29%

 
2,062,801

Consumer
 
377,649

 
0.38% - 21.00%
 
0.31

 
1.28% - 3.53%

 
371,771

Total loans
 
12,093,564

 
 
 
 

 
 

 
12,073,380

Allowance for loan losses
 
(205,965
)
 
 
 
 

 
 

 

Net loans
 
11,887,599

 
 
 
 

 
 

 
12,073,380

Mortgage servicing rights
 
109,840

 
 
 
 

 
 

 
109,840

Derivative instruments with positive fair value, net of cash margin
 
320,473

 
 
 
 

 
 

 
320,473

Other assets – private equity funds
 
29,216

 
 
 
 

 
 

 
29,216

Deposits with no stated maturity
 
16,960,237

 
 
 
 

 
 

 
16,960,237

Time deposits
 
2,900,054

 
0.03% - 9.64%
 
2.14

 
0.78% - 1.15%

 
2,958,570

Other borrowed funds
 
3,393,416

 
0.13% - 5.25%
 

 
0.13% - 2.67%

 
3,398,902

Subordinated debentures
 
347,674

 
0.98% - 5.00%
 
3.33

 
2.22
%
 
345,527

Derivative instruments with negative fair value, net of cash margin
 
251,836

 
 
 
 

 
 

 
251,836