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Fair Value Measurements (Tables)
3 Months Ended
Mar. 31, 2015
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 measured on a recurring basis was as follows as of March 31, 2015 (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
 
$
26,283

 
$

 
$
26,283

 
$

U.S. agency residential mortgage-backed securities
 
17,179

 

 
17,179

 

Municipal and other tax-exempt securities
 
54,164

 

 
54,164

 

Other trading securities
 
20,418

 

 
20,418

 

Total trading securities
 
118,044

 

 
118,044

 

Available for sale securities:
 
 

 
 

 
 

 
 

U.S. Treasury
 
1,001

 
1,001

 

 

Municipal and other tax-exempt
 
60,818

 

 
51,195

 
9,623

U.S. agency residential mortgage-backed securities
 
6,717,569

 

 
6,717,569

 

Privately issued residential mortgage-backed securities
 
160,031

 

 
160,031

 

Commercial mortgage-backed securities guaranteed by U.S. government agencies
 
2,164,842

 

 
2,164,842

 

Other debt securities
 
9,155

 

 
5,005

 
4,150

Perpetual preferred stock
 
24,983

 

 
24,983

 

Equity securities and mutual funds
 
19,776

 
5,071

 
14,705

 

Total available for sale securities
 
9,158,175

 
6,072

 
9,138,330

 
13,773

Fair value option securities:
 
 
 
 
 
 
 
 
U.S. agency residential mortgage-backed securities
 
434,077

 

 
434,077

 

     Other securities
 

 

 

 

Total fair value option securities
 
434,077

 

 
434,077

 

Residential mortgage loans held for sale
 
513,196

 

 
506,326

 
6,870

Mortgage servicing rights1
 
175,051

 

 

 
175,051

Derivative contracts, net of cash collateral2
 
462,386

 
21,369

 
441,017

 

Other assets – private equity funds
 
25,565

 

 

 
25,565

Liabilities:
 
 

 
 
 
 
 
 
Derivative contracts, net of cash collateral2
 
419,351

 

 
419,351

 

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 5, 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 primarily exchange-traded energy 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 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, 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
 
$
85,092

 
$

 
$
85,092

 
$

U.S. agency residential mortgage-backed securities
 
31,199

 

 
31,199

 

Municipal and other tax-exempt securities
 
38,951

 

 
38,951

 

Other trading securities
 
33,458

 

 
33,458

 

Total trading securities
 
188,700

 

 
188,700

 

Available for sale securities:
 
 

 
 

 
 

 
 

U.S. Treasury
 
1,005

 
1,005

 

 

Municipal and other tax-exempt
 
63,557

 

 
53,464

 
10,093

U.S. agency residential mortgage-backed securities
 
6,646,884

 

 
6,646,884

 

Privately issued residential mortgage-backed securities
 
165,957

 

 
165,957

 

Commercial mortgage-backed securities guaranteed by U.S. government agencies
 
2,048,609

 

 
2,048,609

 

Other debt securities
 
9,212

 

 
5,062

 
4,150

Perpetual preferred stock
 
24,277

 

 
24,277

 

Equity securities and mutual funds
 
19,444

 
4,927

 
14,517

 

Total available for sale securities
 
8,978,945

 
5,932

 
8,958,770

 
14,243

Fair value option securities:
 
 
 
 
 
 
 
 
U.S. agency residential mortgage-backed securities
 
311,597

 

 
311,597

 

     Other securities
 

 

 

 

Total fair value option securities
 
311,597

 

 
311,597

 

Residential mortgage loans held for sale
 
304,182

 

 
292,326

 
11,856

Mortgage servicing rights1
 
171,976

 

 

 
171,976

Derivative contracts, net of cash collateral2
 
361,874

 
17,607

 
344,267

 

Other assets – private equity funds
 
25,627

 

 

 
25,627

Liabilities:
 


 
 
 
 
 
 
Derivative contracts, net of cash collateral2
 
354,554

 
541

 
354,013

 

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 5, 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. Derivative contracts in liability positions that were valued using quoted prices in active markets fro identical instruments (Level 1) are exchange-traded interest rate and agricultural derivative contracts, net of cash margin.


The fair value of financial assets and liabilities measured on a recurring basis was 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 collateral2
 
218,507

 
1,363

 
217,144

 

Other assets – private equity funds
 
27,466

 

 

 
27,466

Liabilities:
 
 

 
 
 
 
 
 
Derivative contracts, net of cash collateral2
 
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 5, 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 interest rate derivative contacts, net of cash margin. Derivative contracts in liability positions that were valued using quoted prices in active markets fro identical instruments (Level 1) were exchange-traded energy, interest rate and agricultural derivative contracts, fully pffset by cash 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, 2015 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
 
Residential mortgage loans held for sale
 
Other assets – private equity funds
Balance, Dec. 31, 2014
 
$
10,093

 
$
4,150

 
$
11,856

 
$
25,627

Transfer to Level 3 from Level 2
 

 

 
243

 

Purchases and capital calls
 

 

 

 
380

Proceeds from sales
 

 

 
(5,288
)
 

Redemptions and distributions
 
(500
)
 

 

 
(694
)
Gain (loss) recognized in earnings:
 
 
 
 
 
 
 
 
Mortgage banking revenue
 

 

 
59

 

Gain on other assets, net
 

 

 

 
252

Other comprehensive gain (loss):
 
 
 
 
 
 
 
 
Net change in unrealized gain (loss)
 
30

 

 

 

Balance, March 31, 2015
 
$
9,623

 
$
4,150

 
$
6,870

 
$
25,565

 
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, Dec. 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
)
 

 

 

Charitable contributions to BOKF Foundation
 

 

 
(2,420
)
 

Other comprehensive gain (loss):
 
 
 
 
 
 
 
 
Net change in unrealized gain (loss)
 
118

 

 
(1,787
)
 

Balance, March 31, 2014
 
$
15,523

 
$
4,712

 
$

 
$
27,466


 
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, 2015 follows (in thousands):
Quantitative Information about Level 3 Recurring Fair Value Measurements
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Par
Value
 
Amortized
Cost/Unpaid Principal Balance
 
Fair
Value
 
Valuation Technique(s)
 
Unobservable Input
 
Range
(Weighted Average)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Available for sale securities
 
 
 
 
 
 
 
 
 
 
 
 
 
Municipal and other tax-exempt securities
 
$
10,370

 
$
10,309

 
$
9,623

 
Discounted cash flows
1 
Interest rate spread
 
4.99%-5.29% (5.25%)
2 
92.63%-92.99% (92.80%)
3 
Other debt securities
 
4,400

 
4,400

 
4,150

 
Discounted cash flows
1 
Interest rate spread
 
5.42%-5.67% (5.64%)
4 
94.31% - 94.32 (94.32%)
3 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Residential mortgage loans held for sale
 
N/A

 
7,444

 
6,870

 
Quoted prices of loans sold in securitization transactions, with a liquidity discount applied
 
Liquidity discount applied to the market value of a mortgage loans qualifying for sale to U.S. government agencies.
 
N/A
 
Other assets - private equity funds
 
N/A

 
N/A

 
25,565

 
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 491 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%.



A summary of quantitative information about Recurring Fair Value Measurements based on Significant Unobservable Inputs (Level 3) as of December 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
 
$
10,870

 
$
10,805

 
$
10,093

 
Discounted cash flows
1 
Interest rate spread
 
4.96%-5.26% (5.21%)
2 
92.65%-94.32% (93.09%)
3 
Other debt securities
 
4,400

 
4,400

 
4,150

 
Discounted cash flows
1 
Interest rate spread
 
5.62%-5.67% (5.66%)
4 
92.65% - 92.95 (92.77%)
3 
Residential mortgage loans held for sale
 
N/A

 
12,468

 
11,856

 
Quoted prices of loans sold in securitization transactions, with a liquidity discount applied
 
Liquidity discount applied to the market value of a mortgage loans qualifying for sale to U.S. government agencies.
 
N/A
 
Other assets - private equity funds
 
N/A

 
N/A

 
25,627

 
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 488 to 516 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%.


A summary of quantitative information about Recurring Fair Value Measurements based on 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%.

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, 2015 for which the fair value was adjusted during the three months ended March 31, 2015:
 
Carrying Value at March 31, 2015
 
Fair Value Adjustments for the Three Months Ended
March 31, 2015
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
$

 
$
2,248

 
$

 
$
468

 
$

Real estate and other repossessed assets

 
7,623

 

 

 
1,161

 
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:
 
Carrying Value at March 31, 2014
 
Fair Value Adjustments for the 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

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


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, 2015 (dollars in thousands):
 
 
Carrying
Value
 
Range of
Contractual
Yields
 
Average
Re-pricing
(in years)
 
Discount
Rate
 
Estimated
Fair
Value
Cash and due from banks
 
$
490,683

 
 
 
 
 
 
 
$
490,683

Interest-bearing cash and cash equivalents
 
2,119,987

 
 
 
 
 
 
 
2,119,987

Trading securities:
 
 
 
 
 
 
 
 
 
 
U.S. Government agency debentures
 
26,283

 
 
 
 
 
 
 
26,283

U.S. agency residential mortgage-backed securities
 
17,179

 
 
 
 
 
 
 
17,179

Municipal and other tax-exempt securities
 
54,164

 
 
 
 
 
 
 
54,164

Other trading securities
 
20,418

 
 
 
 
 
 
 
20,418

Total trading securities
 
118,044

 
 
 
 
 
 
 
118,044

Investment securities:
 
 

 
 
 
 
 
 
 
 

Municipal and other tax-exempt
 
396,063

 
 
 
 
 
 
 
400,112

U.S. agency residential mortgage-backed securities
 
33,545

 
 
 
 
 
 
 
35,253

Other debt securities
 
204,979

 
 
 
 
 
 
 
222,606

Total investment securities
 
634,587

 
 
 
 
 
 
 
657,971

Available for sale securities:
 
 

 
 
 
 
 
 
 
 

U.S. Treasury
 
1,001

 
 
 
 
 
 
 
1,001

Municipal and other tax-exempt
 
60,818

 
 
 
 
 
 
 
60,818

U.S. agency residential mortgage-backed securities
 
6,717,569

 
 
 
 
 
 
 
6,717,569

Privately issued residential mortgage-backed securities
 
160,031

 
 
 
 
 
 
 
160,031

Commercial mortgage-backed securities guaranteed by U.S. government agencies
 
2,164,842

 
 
 
 
 
 
 
2,164,842

Other debt securities
 
9,155

 
 
 
 
 
 
 
9,155

Perpetual preferred stock
 
24,983

 
 
 
 
 
 
 
24,983

Equity securities and mutual funds
 
19,776

 
 
 
 
 
 
 
19,776

Total available for sale securities
 
9,158,175

 
 
 
 
 
 
 
9,158,175

Fair value option securities:
 
 
 
 
 
 
 
 
 
 
U.S. agency residential mortgage-backed securities
 
434,077

 
 
 
 
 
 
 
434,077

      Other securities
 

 
 
 
 
 
 
 

Total fair value option securities
 
434,077

 
 
 
 
 
 
 
434,077

Residential mortgage loans held for sale
 
513,196

 
 
 
 
 
 
 
513,196

Loans:
 
 

 
 
 
 
 
 
 
 

Commercial
 
9,391,163

 
0.18% - 30.00%
 
0.69
 
0.49% - 4.15%

 
8,943,332

Commercial real estate
 
2,935,464

 
0.38% - 18.00%
 
0.83
 
1.03% - 3.63%

 
2,708,850

Residential mortgage
 
1,926,999

 
1.20% - 18.00%
 
2.21
 
0.70% - 3.84%

 
1,990,722

Consumer
 
430,510

 
0.38% - 21.00%
 
0.43
 
0.99% - 3.88%

 
431,521

Total loans
 
14,684,136

 
 
 
 
 
 

 
14,074,425

Allowance for loan losses
 
(197,686
)
 
 
 
 
 
 

 

Loans, net of allowance
 
14,486,450

 
 
 
 
 
 

 
14,074,425

Mortgage servicing rights
 
175,051

 
 
 
 
 
 

 
175,051

Derivative instruments with positive fair value, net of cash margin
 
462,386

 
 
 
 
 
 

 
462,386

Other assets – private equity funds
 
25,565

 
 
 
 
 
 

 
25,565

Deposits with no stated maturity
 
18,501,569

 
 
 
 
 
 

 
18,501,569

Time deposits
 
2,651,778

 
0.02% - 9.64%
 
1.79
 
0.78% - 1.24%

 
2,659,907

Other borrowed funds
 
4,691,033

 
0.25% - 4.78%
 
0.02
 
0.06% - 2.64%

 
4,657,770

Subordinated debentures
 
348,030

 
0.92% - 5.00%
 
1.43
 
2.11
%
 
344,599

Derivative instruments with negative fair value, net of cash margin
 
419,351

 
 
 
 
 
 

 
419,351


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, 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
 
$
550,576

 
 
 
 
 
 
 
$
550,576

Interest-bearing cash and cash equivalents
 
1,925,266

 
 
 
 
 
 
 
1,925,266

Trading securities:
 
 
 
 
 
 
 
 
 
 
U.S. Government agency debentures
 
85,092

 
 
 
 
 
 
 
85,092

U.S. agency residential mortgage-backed securities
 
31,199

 
 
 
 
 
 
 
31,199

Municipal and other tax-exempt securities
 
38,951

 
 
 
 
 
 
 
38,951

Other trading securities
 
33,458

 
 
 
 
 
 
 
33,458

Total trading securities
 
188,700

 
 
 
 
 
 
 
188,700

Investment securities:
 
 

 
 
 
 
 
 
 
 

Municipal and other tax-exempt
 
405,090

 
 
 
 
 
 
 
408,344

U.S. agency residential mortgage-backed securities
 
35,750

 
 
 
 
 
 
 
37,463

Other debt securities
 
211,520

 
 
 
 
 
 
 
227,819

Total investment securities
 
652,360

 
 
 
 
 
 
 
673,626

Available for sale securities:
 
 

 
 
 
 
 
 
 
 

U.S. Treasury
 
1,005

 
 
 
 
 
 
 
1,005

Municipal and other tax-exempt
 
63,557

 
 
 
 
 
 
 
63,557

U.S. agency residential mortgage-backed securities
 
6,646,884

 
 
 
 
 
 
 
6,646,884

Privately issued residential mortgage-backed securities
 
165,957

 
 
 
 
 
 
 
165,957

Commercial mortgage-backed securities guaranteed by U.S. government agencies
 
2,048,609

 
 
 
 
 
 
 
2,048,609

Other debt securities
 
9,212

 
 
 
 
 
 
 
9,212

Perpetual preferred stock
 
24,277

 
 
 
 
 
 
 
24,277

Equity securities and mutual funds
 
19,444

 
 
 
 
 
 
 
19,444

Total available for sale securities
 
8,978,945

 
 
 
 
 
 
 
8,978,945

Fair value option securities:
 
 
 
 
 
 
 
 
 
 
U.S. agency residential mortgage-backed securities
 
311,597

 
 
 
 
 
 
 
311,597

      Other securities
 

 
 
 
 
 
 
 

Total fair value option securities
 
311,597

 
 
 
 
 
 
 
311,597

Residential mortgage loans held for sale
 
304,182

 
 
 
 
 
 
 
304,182

Loans:
 
 

 
 
 
 
 
 

 
 

Commercial
 
9,095,670

 
0.17% - 30.00%
 
0.65
 
0.51% - 4.34%

 
8,948,870

Commercial real estate
 
2,728,150

 
0.38% - 18.00%
 
0.84
 
1.09% - 3.78%

 
2,704,454

Residential mortgage
 
1,949,512

 
1.20% - 18.00%
 
2.50
 
0.64% - 3.99%

 
1,985,870

Consumer
 
434,705

 
0.38% - 21.00%
 
0.45
 
1.04% - 3.98%

 
431,274

Total loans
 
14,208,037

 
 
 
 
 
 

 
14,070,468

Allowance for loan losses
 
(189,056
)
 
 
 
 
 
 

 

Loans, net of allowance
 
14,018,981

 
 
 
 
 
 

 
14,070,468

Mortgage servicing rights
 
171,976

 
 
 
 
 
 

 
171,976

Derivative instruments with positive fair value, net of cash margin
 
361,874

 
 
 
 
 
 

 
361,874

Other assets – private equity funds
 
25,627

 
 
 
 
 
 

 
25,627

Deposits with no stated maturity
 
18,532,143

 
 
 
 
 
 

 
18,532,143

Time deposits
 
2,608,716

 
0.02% - 9.64%
 
1.92
 
0.76% - 1.33%

 
2,612,576

Other borrowed funds
 
3,378,294

 
0.21% - 1.52%
 
0.12
 
0.06% - 2.64%

 
3,331,771

Subordinated debentures
 
347,983

 
0.92% - 5.00%
 
1.67
 
2.14
%
 
344,687

Derivative instruments with negative fair value, net of cash margin
 
354,554

 
 
 
 
 
 

 
354,554


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
)
 
 
 
 
 
 

 

Loans, net of allowance
 
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%
 
0.01
 
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


Fair Value Inputs, Financial Instruments, Quantitative Information [Table Text Block]
 
Range of
Contractual
Yields
 
Average Re-pricing (in years)
 
Discount
Rate
 
Minimum
 
Maximum
 
Average
 
Minimum
 
Maximum
March 31, 2015
 
 
 
 
 
 
 
 
 
Commercial
0.18
%
 
30.00
%
 
0.69
 
0.49
%
 
4.15
%
Commercial real estate
0.38
%
 
18.00
%
 
0.83
 
1.03
%
 
3.63
%
Residential mortgage
1.20
%
 
18.00
%
 
2.21
 
0.70
%
 
3.84
%
Consumer
0.38
%
 
21.00
%
 
0.43
 
0.99
%
 
3.88
%
 
 
 
 
 
 
 
 
 
 
Time deposits
0.02
%
 
9.64
%
 
1.79
 
0.78
%
 
1.24
%
Other borrowings
0.25
%
 
4.78
%
 
0.02
 
0.06
%
 
2.64
%
Subordinated debentures
0.92
%
 
5.00
%
 
1.43
 
2.11
%
 
2.11
%
 
 
 
 
 
 
 
 
 
 
December 31, 2014
 
 
 
 
 
 
 
 
 
Commercial
0.17
%
 
30.00
%
 
0.65
 
0.51
%
 
4.34
%
Commercial real estate
0.38
%
 
18.00
%
 
0.84
 
1.09
%
 
3.78
%
Residential mortgage
1.20
%
 
18.00
%
 
2.50
 
0.64
%
 
3.99
%
Consumer
0.38
%
 
21.00
%
 
0.45
 
1.04
%
 
3.98
%
 
 
 
 
 
 
 
 
 
 
Time deposits
0.02
%
 
9.64
%
 
1.92
 
0.76
%
 
1.33
%
Other borrowings
0.21
%
 
1.52
%
 
0.12
 
0.06
%
 
2.64
%
Subordinated debentures
0.92
%
 
5.00
%
 
1.67
 
2.14
%
 
2.14
%
 
 
 
 
 
 
 
 
 
 
March 31, 2014
 
 
 
 
 
 
 
 
 
Commercial
0.15
%
 
30.00
%
 
0.52
 
0.55
%
 
4.28
%
Commercial real estate
0.38
%
 
18.00
%
 
0.74
 
1.15
%
 
3.54
%
Residential mortgage
0.01
%
 
18.00
%
 
2.60
 
0.57
%
 
4.54
%
Consumer
0.38
%
 
21.00
%
 
0.50
 
1.14
%
 
3.80
%
 
 
 
 
 
 
 
 
 
 
Time deposits
0.03
%
 
9.64
%
 
2.08
 
0.74
%
 
1.32
%
Other borrowings
0.23
%
 
4.50
%
 
0.01
 
0.06
%
 
2.62
%
Subordinated debentures
0.95
%
 
5.00
%
 
2.40
 
2.21
%
 
2.21
%