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Fair Value Measurements
12 Months Ended
Dec. 31, 2011
Fair Value Disclosures [Abstract]  
Fair Value Measurements
NOTE P – FAIR VALUE MEASUREMENTS
As required by FASB ASC Topic 820, all assets and liabilities required to be measured at fair value both on a recurring and non-recurring basis have been categorized based on the method of their fair value determination.
Following is a summary of the Corporation’s assets and liabilities measured at fair value on a recurring basis and reported on the consolidated balance sheets at December 31:
 
2011
 
Level 1
 
Level 2
 
Level 3
 
Total
 
(in thousands)
Mortgage loans held for sale
$

 
$
47,009

 
$

 
$
47,009

Available for sale investment securities:

 

 

 

Equity securities
34,586

 

 

 
34,586

U.S. Government securities

 
334

 

 
334

U.S. Government sponsored agency securities

 
4,073

 

 
4,073

State and municipal securities

 
322,018

 

 
322,018

Corporate debt securities

 
114,017

 
9,289

 
123,306

Collateralized mortgage obligations

 
1,001,209

 

 
1,001,209

Mortgage-backed securities

 
880,097

 

 
880,097

Auction rate securities

 

 
225,211

 
225,211

Total available for sale investment securities
34,586

 
2,321,748

 
234,500

 
2,590,834

Other financial assets
13,130

 
3,901

 

 
17,031

Total assets
$
47,716

 
$
2,372,658

 
$
234,500

 
$
2,654,874

Other financial liabilities
$
13,130

 
$
2,734

 
$

 
$
15,864

 
 
 
 
 
 
 
 
 
2010
 
Level 1
 
Level 2
 
Level 3
 
Total
 
(in thousands)
Mortgage loans held for sale
$

 
$
83,940

 
$

 
$
83,940

Available for sale investment securities:

 

 

 

Equity securities
40,070

 

 

 
40,070

U.S. Government securities

 
1,649

 

 
1,649

U.S. Government sponsored agency securities

 
5,058

 

 
5,058

State and municipal securities

 
349,563

 

 
349,563

Corporate debt securities

 
111,675

 
13,111

 
124,786

Collateralized mortgage obligations

 
1,104,058

 

 
1,104,058

Mortgage-backed securities

 
871,472

 

 
871,472

Auction rate securities

 

 
260,679

 
260,679

Total available for sale investment securities
40,070

 
2,443,475

 
273,790

 
2,757,335

Other financial assets
13,582

 
9,256

 

 
22,838

Total assets
$
53,652

 
$
2,536,671

 
$
273,790

 
$
2,864,113

Other financial liabilities
$
13,582

 
$
760

 
$

 
$
14,342


The valuation techniques used to measure fair value for the items in the table above are as follows:
Mortgage loans held for sale – This category consists of mortgage loans held for sale that the Corporation has elected to measure at fair value. Fair values as of December 31, 2011 and December 31, 2010 were measured as the price that secondary market investors were offering for loans with similar characteristics. See Note A, “Summary of Significant Accounting Policies” for details related to the Corporation’s election to measure assets and liabilities at fair value.
Available for sale investment securities – Included within this asset category are both equity and debt securities. Level 2 available for sale debt securities are valued by a third-party pricing service commonly used in the banking industry. The pricing service uses evaluated pricing models that vary based on asset class and incorporate available market information including quoted prices of investments securities with similar characteristics. Because many fixed income securities do not trade on a daily basis, evaluated pricing models use available information, as applicable, through processes such as benchmark curves, benchmarking of like securities, sector groupings, and matrix pricing
Standard market inputs include: benchmark yields, reported trades, broker/dealer quotes, issuer spreads, two-sided markets, benchmark securities, bids, offers and reference data including market research publications. For certain security types, additional inputs may be used, or some of the standard market inputs may not be applicable.

Management tests the values provided by the pricing service by obtaining securities prices from an alternative third party source and comparing the results. This test is done for approximately 80% of the securities valued by the pricing service. Generally, differences by security in excess of 5% are researched to reconcile the difference.
Equity securities – Equity securities consist of stocks of financial institutions ($27.9 million at December 31, 2011 and $33.1 million at December 31, 2010) and other equity investments ($6.7 million at December 31, 2011 and $7.0 million at December 31, 2010). These Level 1 investments are measured at fair value based on quoted prices for identical securities in active markets. Restricted equity securities issued by the FHLB and Federal Reserve Bank ($82.5 million at December 31, 2011 and $96.4 million at December 31, 2010) have been excluded from the above table.
U.S. Government securities/U.S. Government sponsored agency securities/State and municipal securities/Collateralized mortgage obligations/Mortgage-backed securities – These debt securities are classified as Level 2 investments. Fair values are determined by a third-party pricing service, as detailed above.
Corporate debt securities – This category consists of subordinated debt issued by financial institutions ($41.3 million at December 31, 2011 and $35.9 million at December 31, 2010), single-issuer trust preferred securities issued by financial institutions ($74.4 million at December 31, 2011 and $81.8 million at December 31, 2010), pooled trust preferred securities issued by financial institutions ($5.1 million at December 31, 2011 and $4.5 million at December 31, 2010) and other corporate debt issued by non-financial institutions ($2.5 million at December 31, 2011 and $2.6 million at December 31, 2010).
Classified as Level 2 investments are the subordinated debt, other corporate debt issued by non-financial institutions and $70.2 million and $73.2 million of single-issuer trust preferred securities held at December 31, 2011 and December 31, 2010, respectively. These corporate debt securities are measured at fair value by a third-party pricing service, as detailed above.
Classified as Level 3 assets are the Corporation’s investments in pooled trust preferred securities and certain single-issuer trust preferred securities ($4.2 million at December 31, 2011 and $8.6 million at December 31, 2010). The fair values of these securities were determined based on quotes provided by third-party brokers who determined fair values based predominantly on internal valuation models which were not indicative prices or binding offers. The Corporation’s third-party pricing service cannot derive fair values for these securities primarily due to inactive markets for similar investments. Level 3 values are tested by management primarily through trend analysis, by comparing current values to those reported at the end of the preceding calendar quarter, and determining if they are reasonable based on price and spread movements for this asset class.
Auction rate securities – Due to their illiquidity, ARCs are classified as Level 3 investments and are valued through the use of an expected cash flows model prepared by a third-party valuation expert. The assumptions used in preparing the expected cash flows model include estimates for coupon rates, time to maturity and market rates of return. Management tests Level 3 valuations for ARCs by performing a trend analysis of the market price and discount rate. Changes in the price and discount rates are compared to changes in market data, including bond ratings, parity ratios, balances and delinquency levels. Any inconsistencies are reconciled through discussions with the third-party valuation expert.
Other financial assets – Included within this asset category are: Level 1 assets, consisting of mutual funds that are held in trust for employee deferred compensation plans and measured at fair value based on quoted prices for identical securities in active markets; and Level 2 assets representing the fair values of mortgage banking derivatives in the form of interest rate locks and forward commitments with secondary market investors. The fair values of the Corporation’s interest rate locks and forward commitments are determined as the amounts that would be required to settle the derivative financial instruments at the balance sheet date. See Note A, Summary of Significant Accounting Policies” for additional information.
Other financial liabilities – Included within this category are: Level 1 employee deferred compensation liabilities which represent amounts due to employees under the deferred compensation plans, described under the heading “Other financial assets” above and Level 2 mortgage banking derivatives, described under the heading “Other financial assets” above.
The following tables present the changes in the Corporation’s available for sale investment securities measured at fair value on a recurring basis using unobservable inputs (Level 3) for the years ended December 31:
 
2011
 
Pooled Trust
Preferred
Securities
 
Single-issuer
Trust
Preferred
Securities
 
Auction Rate
Securities
(ARCs)
 
(in thousands)
Balance, December 31, 2010
$
4,528

 
$
8,583

 
$
260,679

Transfer from Level 3 to Level 2 (1)

 
(800
)
 

Realized adjustments to fair value (2)
(1,406
)
 

 
(292
)
Unrealized adjustments to fair value (3)
2,465

 
28

 
(4,383
)
Sales (4)

 

 

Settlements - maturities


(1,650
)



Settlements - calls
(476
)
 
(1,980
)
 
(34,844
)
(Premium amortization) discount accretion (5)
(2
)
 
(1
)
 
4,051

Balance, December 31, 2011
$
5,109

 
$
4,180

 
$
225,211

 
 
2010
 
Pooled Trust
Preferred
Securities
 
Single-issuer
Trust
Preferred
Securities
 
Auction Rate
Securities
(ARCs)
 
(in thousands)
Balance, December 31, 2009
$
4,979

 
$
6,981

 
$
289,203

Transfer from Level 2 to Level 3

 
650

 


Realized adjustments to fair value (2)
(11,969
)
 

 

Unrealized adjustments to fair value (3)
11,842

 
951

 
(10,850
)
Sales

 

 
(15,266
)
Settlements - calls
(328
)
 

 
(8,969
)
Discount accretion (4)
4

 
1

 
6,561

Balance, December 31, 2010
$
4,528

 
$
8,583

 
$
260,679

 
(1)
During the year ended December 31, 2011, one single-issuer trust preferred security with a fair value of $800,000 as of December 31, 2010 was reclassified as a Level 2 asset. As of December 31, 2011, the fair value of this security was measured by a third-party pricing service using both quoted prices for similar assets and model-based valuation techniques that derived fair value based on market-corroborated data, such as instruments with similar prepayment speeds and default interest rates. As of December 31, 2010, the fair value of this security was determined based on quotes provided by third-party brokers who determined its fair value based predominantly on an internal valuation model.
(2)
For pooled trust preferred securities and ARCs, realized adjustments to fair value represent credit related other-than-temporary impairment charges that were recorded as a reduction to investment securities gains on the consolidated statements of income.
(3)
Pooled trust preferred securities, single-issuer trust preferred securities and ARCs are classified as available for sale investment securities; as such, the unrealized adjustment to fair value was recorded as an unrealized holding gain (loss) and included as a component of available for sale investment securities on the consolidated balance sheet.
(4)
During the year ended December 31, 2011, the Corporation sold one pooled trust preferred security with a par value of $6.4 million and a book value of zero for no gain or loss. This security had a book value of zero as a result of prior year other-than-temporary impairment charges.
(5)
Included as a component of net interest income on the consolidated statements of income.

Certain financial assets are not measured at fair value on an ongoing basis but are subject to fair value measurement in certain circumstances, such as upon their acquisition or when there is evidence of impairment. The following tables present the Corporation’s financial assets measured at fair value on a nonrecurring basis and reported on the Corporation’s consolidated balance sheets at December 31:
 
2011
 
Level 1
 
Level 2
 
Level 3
 
Total
 
(in thousands)
Net loans
$

 
$

 
$
216,812

 
$
216,812

Other financial assets

 

 
63,919

 
63,919

Total assets
$

 
$

 
$
280,731

 
$
280,731

Reserve for unfunded commitments
$

 
$

 
$
1,706

 
$
1,706

 
 
 
 
 
 
 
 
 
2010
 
Level 1
 
Level 2
 
Level 3
 
Total
 
(in thousands)
Net loans

 

 
457,678

 
457,678

Other financial assets

 

 
62,109

 
62,109

Total assets
$

 
$

 
$
519,787

 
$
519,787

Reserve for unfunded commitments
$

 
$

 
$
1,227

 
$
1,227



The valuation techniques used to measure fair value for the items in the table above are as follows:
Net loans – This category consists of loans that were evaluated for impairment under FASB ASC Section 310-10-35 and have been classified as Level 3 assets. The amount shown is the balance of impaired loans, net of the related allowance for loan losses. See Note D, "Loans and Allowance for Credit Losses," for additional details.
Other financial assets – This category includes OREO ($30.8 million at December 31, 2011 and $33.0 million at December 31, 2010) and MSRs net of the MSR valuation allowance ($33.1 million at December 31, 2011 and $29.1 million at December 31, 2010), both classified as Level 3 assets.
Fair values for OREO were based on estimated selling prices less estimated selling costs for similar assets in active markets.
MSRs are initially recorded at fair value upon the sale of residential mortgage loans, which the Corporation continues to service, to secondary market investors. MSRs are amortized as a reduction to servicing income over the estimated lives of the underlying loans. MSRs are evaluated quarterly for impairment by comparing the carrying amount to estimated fair value. Fair value is determined at the end of each quarter through a discounted cash flows valuation. Significant inputs to the valuation include expected net servicing income, the discount rate and the expected life of the underlying loans.
Reserve for unfunded commitments – This Level 3 liability represents the estimate of losses associated with unused commitments to extend credit.
As required by FASB ASC Section 825-10-50, the following table details the book values and the estimated fair values of the Corporation’s financial instruments as of December 31, 2011 and December 31, 2010. In addition, a general description of the methods and assumptions used to estimate such fair values is also provided.
Fair values of financial instruments are significantly affected by assumptions used, principally the timing of future cash flows and discount rates. Because assumptions are inherently subjective in nature, the estimated fair values cannot be substantiated by comparison to independent market quotes and, in many cases, the estimated fair values could not necessarily be realized in an immediate sale or settlement of the instrument. The aggregate fair value amounts presented do not necessarily represent management’s estimate of the underlying value of the Corporation.
 
 
2011
 
2010
 
Book Value
 
Estimated
Fair Value
 
Book Value
 
Estimated
Fair Value
FINANCIAL ASSETS
(in thousands)
Cash and due from banks
$
292,598

 
$
292,598

 
$
198,954

 
$
198,954

Interest-bearing deposits with other banks
175,336

 
175,336

 
33,297

 
33,297

Loans held for sale (1)
47,009

 
47,009

 
83,940

 
83,940

Securities held to maturity
6,669

 
6,699

 
7,751

 
7,818

Securities available for sale (1)
2,673,298

 
2,673,298

 
2,853,733

 
2,853,733

Loans, net of unearned income (1)
11,968,970

 
11,992,586

 
11,933,307

 
11,909,539

Accrued interest receivable
51,098

 
51,098

 
53,841

 
53,841

Other financial assets (1)
315,952

 
315,952

 
282,174

 
282,174

FINANCIAL LIABILITIES
 
 
 
 
 
 
 
Demand and savings deposits
$
8,511,789

 
$
8,511,789

 
$
7,758,613

 
$
7,758,613

Time deposits
4,013,950

 
4,056,247

 
4,629,968

 
4,677,494

Short-term borrowings
597,033

 
597,033

 
674,077

 
674,077

Accrued interest payable
25,686

 
25,686

 
33,333

 
33,333

Other financial liabilities (1)
69,816

 
69,816

 
80,250

 
80,250

FHLB advances and long-term debt
1,040,149

 
982,010

 
1,119,450

 
1,077,724

 
(1)
Description of fair value determinations for these financial instruments, or certain financial instruments within these categories, measured at fair value on the Corporation’s consolidated balance sheets, are disclosed above.
For short-term financial instruments defined as those with remaining maturities of 90 days or less, excluding those recorded at fair value on the Corporation’s consolidated balance sheets, the book value was considered to be a reasonable estimate of fair value.
The following instruments are predominantly short-term:
Assets
  
Liabilities
Cash and due from banks
  
Demand and savings deposits
Interest bearing deposits
  
Short-term borrowings
Federal funds sold
  
Accrued interest payable
Accrued interest receivable
  
Other financial liabilities

For those financial instruments within the above-listed categories with remaining maturities greater than 90 days, fair values were determined by discounting contractual cash flows using rates which could be earned for assets with similar remaining maturities and, in the case of liabilities, rates at which the liabilities with similar remaining maturities could be issued as of the balance sheet date.

The estimated fair values of securities held to maturity as of December 31, 2011 and December 31, 2010 were generally based on quoted market prices, broker quotes or dealer quotes.
Estimated fair values for loans and time deposits were estimated by discounting future cash flows using the current rates at which similar loans would be made to borrowers for the same remaining maturities. Fair values estimated in this manner do not fully incorporate an exit price approach to fair value, as defined in FASB ASC Topic 820.
The fair value of FHLB advances and long-term debt was estimated by discounting the remaining contractual cash flows using a rate at which the Corporation could issue debt with a similar remaining maturity as of the balance sheet date. The fair values of commitments to extend credit and standby letters of credit are estimated to equal their carrying amounts.