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Estimated Fair Values | 12 Months Ended
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Dec. 31, 2015
Fair Value Disclosures [Abstract] |
Estimated Fair Values | ESTIMATED FAIR VALUES Fair value estimates are intended to represent the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants as of the measurement date. Where there is no active market for a financial instrument, BancShares has made estimates using discounted cash flows or other valuation techniques. Inputs to these valuation methods are subjective in nature, involve uncertainties and require significant judgment and therefore cannot be determined with precision. Accordingly, the derived fair value estimates presented below are not necessarily indicative of the amounts BancShares could realize in a current market exchange. ASC 820, Fair Value Measurements and Disclosures, indicates that assets and liabilities are recorded at fair value according to a fair value hierarchy comprised of three levels. The levels are based on the markets in which the assets and liabilities are traded and the reliability of the assumptions used to determine fair value. The level within the fair value hierarchy for an asset or liability is based on the highest level of input that is significant to the fair value measurement (with level 1 considered highest and level 3 considered lowest). A brief description of each level follows:
• | Level 1 values are based on quoted prices for identical instruments in active markets.
• | Level 2 values are based on quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active and model-based valuation techniques for which all significant assumptions are observable in the market.
• | Level 3 values are generated from model-based techniques that use at least one significant assumption not observable in the market. These unobservable assumptions reflect estimates that market participants would use in pricing the asset or liability. Valuation techniques include the use of discounted cash flow models and similar techniques.
Valuation adjustments, such as those pertaining to counterparty and BancShares' own credit quality and liquidity, may be necessary to ensure that assets and liabilities are recorded at fair value. Credit valuation adjustments are made when market pricing does not accurately reflect the counterparty's credit quality. As determined by BancShares management, liquidity valuation adjustments may be made to the fair value of certain assets to reflect the uncertainty in the pricing and trading of the instruments when we are unable to observe recent market transactions for identical or similar instruments. BancShares management reviews any changes to its valuation methodologies to ensure they are appropriate and justified, and refines valuation methodologies as more market-based data becomes available. Transfers between levels of the fair value hierarchy are recognized at the end of the reporting period. The methodologies used to estimate the fair value of financial assets and financial liabilities are discussed below: Investment securities available for sale. U.S.Treasury, government agency, mortgage-backed securities, municipal securities and trust preferred securities are generally measured at fair value using a third party pricing service or recent comparable market transactions in similar or identical securities and are classified as level 2 instruments. Equity securities are measured at fair value using observable closing prices and the valuation also considers the amount of market activity by examining the trade volume of each security. Equity securities are classified as Level 1 if they are traded on a heavily active market and as Level 2 if the observable closing price is from a less than active market. Loans held for sale. Certain residential real estate loans are originated to be sold to investors, which are carried at fair value as BancShares elected the fair value option on loans held for sale in 2014. The fair value is based on quoted market prices for similar types of loans. Accordingly, the inputs used to calculate fair value of residential real estate loans held for sale are classified as level 2 inputs. Net loans and leases (PCI and Non-PCI). Fair value is estimated based on discounted future cash flows using the current interest rates at which loans with similar terms would be made to borrowers of similar credit quality. An additional valuation adjustment is made for liquidity. The inputs used in the fair value measurements for loans and leases are considered level 3 inputs. FHLB stock. The carrying amount of FHLB stock is a reasonable estimate of fair value as these securities are not readily marketable and are evaluated for impairment based on the ultimate recoverability of the par value. BancShares considers positive and negative evidence, including the profitability and asset quality of the issuer, dividend payment history and recent redemption experience, when determining the ultimate recoverability of the par value. BancShares believes its investment in FHLB stock is ultimately recoverable at par. The inputs used in the fair value measurement for the FHLB stock are considered level 2 inputs. Mortgage servicing rights. Mortgage servicing rights are carried at the lower of amortized cost or market and are, therefore, carried at fair value only when fair value is less than the asset cost. The fair value of mortgage servicing rights is performed using a pooling methodology. Similar loans are pooled together and a model that relies on discount rates, estimates of prepayment rates and the weighted average cost to service the loans is used to determine the fair value. The inputs used in the fair value measurement for mortgage servicing rights are considered level 3 inputs. Deposits. For non-time deposits, carrying value is a reasonable estimate of fair value. The fair value of time deposits is estimated by discounting future cash flows using the interest rates currently offered for deposits of similar remaining maturities. The inputs used in the fair value measurement for deposits are considered level 2 inputs. Long-term obligations. For fixed rate trust preferred securities, the fair values are determined based on recent trades of the actual security if available. For other long-term obligations, fair values are estimated by discounting future cash flows using current interest rates for similar financial instruments. The inputs used in the fair value measurement for long-term obligations are considered level 2 inputs. Payable to the FDIC for loss share agreements. The fair value of the payable to the FDIC for loss share agreements is determined by the projected cash flows based on expected payments to the FDIC in accordance with the loss share agreements. Cash flows are discounted using current discount rates based on the expiration date of each loss share agreement to reflect the timing of the estimated amounts due to the FDIC. The inputs used in the fair value measurement for the payable to the FDIC are considered level 3 inputs. Interest rate swap. Under the terms of the existing cash flow hedge, BancShares pays a fixed payment to the counterparty in exchange for receipt of a variable payment that is determined based on the three-month LIBOR rate. The fair value of the cash flow hedge is, therefore, based on projected LIBOR rates for the duration of the hedge, values that, while observable in the market, are subject to adjustment due to pricing considerations for the specific instrument. The inputs used in the fair value measurement of the interest rate swap are considered level 2 inputs. Off-balance-sheet commitments and contingencies. Carrying amounts are reasonable estimates of the fair values for such financial instruments. Carrying amounts include unamortized fee income and, in some cases, reserves for any credit losses from those financial instruments. These amounts are not material to BancShares' financial position. For all other financial assets and financial liabilities, the carrying value is a reasonable estimate of the fair value as of December 31, 2015 and December 31, 2014. The carrying value and fair value for these assets and liabilities are equivalent because they are relatively short term in nature and there is no interest rate or credit risk relating to them that would cause the fair value to differ from the carrying value. Cash and due from banks is classified on the fair value hierarchy as level 1. Overnight investments, income earned not collected, short-term borrowings and accrued interest payable are considered level 2. Lastly, the receivable from the FDIC for loss share agreements is designated as level 3.
| December 31, 2015 |  | December 31, 2014
(Dollars in thousands) | Carrying value |  | Fair value |  | Carrying value |  | Fair value
Cash and due from banks | $ | 534,086 |  |  | $ | 534,086 |  |  | $ | 604,182 |  |  | $ | 604,182 |
Overnight investments | 2,063,132 |  |  | 2,063,132 |  |  | 1,724,919 |  |  | 1,724,919 |
Investment securities available for sale | 6,861,293 |  |  | 6,861,293 |  |  | 7,171,917 |  |  | 7,171,917 |
Investment securities held to maturity | 255 |  |  | 265 |  |  | 518 |  |  | 544 |
Loans held for sale | 59,766 |  |  | 59,766 |  |  | 63,696 |  |  | 63,696 |
Net loans and leases | 20,033,774 |  |  | 19,353,325 |  |  | 18,564,999 |  |  | 18,046,497 |
Receivable from the FDIC for loss share agreements (1) | 4,054 |  |  | 4,054 |  |  | 28,701 |  |  | 18,218 |
Income earned not collected | 70,036 |  |  | 70,036 |  |  | 57,254 |  |  | 57,254 |
Federal Home Loan Bank stock | 37,511 |  |  | 37,511 |  |  | 39,113 |  |  | 39,113 |
Mortgage servicing rights | 19,351 |  |  | 19,495 |  |  | 16,688 |  |  | 16,736 |
Deposits | 26,930,755 |  |  | 26,164,472 |  |  | 25,678,577 |  |  | 25,164,683 |
Short-term borrowings | 594,733 |  |  | 594,733 |  |  | 987,184 |  |  | 987,184 |
Long-term obligations | 704,155 |  |  | 718,102 |  |  | 351,320 |  |  | 367,732 |
Payable to the FDIC for loss share agreements | 126,453 |  |  | 131,894 |  |  | 116,535 |  |  | 122,168 |
Accrued interest payable | 5,713 |  |  | 5,713 |  |  | 8,194 |  |  | 8,194 |
Interest rate swap | 1,429 |  |  | 1,429 |  |  | 4,337 |  |  | 4,337 |
(1) At December 31, 2015, the carrying value of the FDIC receivable approximates the fair value due to the short-term nature of the majority of loss share agreements. At December 31, 2014, the fair value of the FDIC receivable is estimated based on discounted future cash flows using current discount rates and excludes receivable related to accretable yield to be amortized in prospective periods. Among BancShares’ assets and liabilities, investment securities available for sale, loans held for sale and interest rate swaps accounted for as cash flow hedges are reported at their fair values on a recurring basis. For assets and liabilities carried at fair value on a recurring basis, the following table provides fair value information as of December 31, 2015 and December 31, 2014.
| December 31, 2015
|  |  | Fair value measurements using:
(Dollars in thousands) | Fair value |  | Level 1 |  | Level 2 |  | Level 3
Assets measured at fair value |  |  |  |  |  |  |
Investment securities available for sale |  |  |  |  |  |  |
U.S. Treasury | $ | 1,674,882 |  |  | $ | — |  |  | $ | 1,674,882 |  |  | $ | — |
Government agency | 498,660 |  |  | — |  |  | 498,660 |  |  | — |
Mortgage-backed securities | 4,668,198 |  |  | — |  |  | 4,668,198 |  |  | — |
Equity securities | 8,893 |  |  | 1,668 |  |  | 7,225 |  |  | — |
Other | 10,660 |  |  | — |  |  | 10,660 |  |  | — |
Total investment securities available for sale | $ | 6,861,293 |  |  | $ | 1,668 |  |  | $ | 6,859,625 |  |  | $ | — |
Loans held for sale | $ | 59,766 |  |  | $ | — |  |  | $ | 59,766 |  |  | $ | — |
Liabilities measured at fair value |  |  |  |  |  |  |
Interest rate swaps accounted for as cash flow hedges | $ | 1,429 |  |  | $ | — |  |  | $ | 1,429 |  |  | $ | — |
| December 31, 2014
|  |  | Fair value measurements using:
| Fair value |  | Level 1 |  | Level 2 |  | Level 3
Assets measured at fair value |  |  |  |  |  |  |
Investment securities available for sale |  |  |  |  |  |  |
U.S. Treasury | $ | 2,629,670 |  |  | $ | — |  |  | $ | 2,629,670 |  |  | $ | — |
Government agency | 908,817 |  |  | — |  |  | 908,817 |  |  | — |
Mortgage-backed securities | 3,633,304 |  |  | — |  |  | 3,633,304 |  |  | — |
Municipal securities | 126 |  |  | — |  |  | 126 |  |  | — |
Total investment securities available for sale | $ | 7,171,917 |  |  | $ | — |  |  | $ | 7,171,917 |  |  | $ | — |
Loans held for sale | $ | 63,696 |  |  | $ | — |  |  | $ | 63,696 |  |  | $ | — |
Liabilities measured at fair value |  |  |  |  |  |  |
Interest rate swaps accounted for as cash flow hedges | $ | 4,337 |  |  | $ | — |  |  | $ | 4,337 |  |  | $ | — |
There were no transfers between levels during the years ended December 31, 2015 and 2014. Fair Value Option Beginning in the fourth quarter of 2014, BancShares elected the fair value option for residential real estate loans held for sale. This election reduces certain timing differences in the Consolidated Statements of Income and better aligns with the management of the portfolio from a business perspective. The following table summarizes the difference between the aggregate fair value and the aggregate unpaid principal balance for residential real estate loans held for sale measured at fair value as of December 31, 2015 and 2014.
| December 31, 2015
(Dollars in thousands) | Fair Value |  | Aggregate Unpaid Principal Balance |  | Difference
Loans held for sale | $ | 59,766 |  |  | $ | 58,890 |  |  | $ | 876 |
| December 31, 2014
| Fair Value |  | Aggregate Unpaid Principal Balance |  | Difference
Loans held for sale | $ | 63,696 |  |  | $ | 62,996 |  |  | $ | 700 |
No loans held for sale were 90 or more days past due or on nonaccrual status as of December 31, 2015 and 2014. The changes in fair value for residential real estate loans held for sale for which we elected the fair value option are included in the table below for the years ended December 31, 2015 and 2014.
| Year ended December 31
(Dollars in thousands) | 2015 |  | 2014
Gains (losses) from fair value changes on loans held for sale | $ | 176 |  |  | $ | 202 |
The changes in fair value in the table above are recorded as a component of mortgage income on the Consolidated Statements of Income. Certain other assets are adjusted to their fair value on a nonrecurring basis, including impaired loans, OREO, goodwill, which is periodically tested for impairment and mortgage servicing rights, which are carried at the lower of amortized cost or market. Non-impaired loans held for investment, deposits, short-term borrowings and long-term obligations are not reported at fair value. Impaired loans are deemed to be at fair value if an associated allowance or current period charge-off has been recorded. The value of impaired loans is determined by either collateral valuations or discounted present value of the expected cash flow calculations. Collateral values are determined using appraisals or other third-party value estimates of the subject property with discounts generally between 10 and 14 percent applied for estimated holding and selling costs and other external factors that may impact the marketability of the property. Impaired loans are assigned to an asset manager and monitored monthly for significant changes since the last valuation. If significant changes are noted, the asset manager orders a new valuation or adjusts the valuation accordingly. Expected cash flows are determined using expected payment information at the individual loan level, discounted using the effective interest rate. The effective interest rates generally range between 2 and 16 percent. OREO is measured and reported at fair value using collateral valuations. Collateral values are determined using appraisals or other third-party value estimates of the subject property with discounts generally between 10 and 14 percent applied for estimated holding and selling costs and other external factors that may impact the marketability of the property. Changes to the value of the assets between scheduled valuation dates are monitored through continued communication with brokers and monthly reviews by the asset manager assigned to each asset. The asset manager uses the information gathered from brokers and other market sources to identify any significant changes in the market or the subject property as they occur. Valuations are then adjusted or new appraisals are ordered to ensure the reported values reflect the most current information. OREO that has been acquired or written down in the current year is deemed to be at fair value and included in the table below. Mortgage servicing rights are carried at the lower of cost or market and are, therefore, carried at fair value only when fair value is less than the amortized asset cost. The fair value of mortgage servicing rights is performed using a pooling methodology. Similar loans are pooled together and a discounted cash flow model, which takes into consideration discount rates, prepayment rates, and the weighted average cost to service the loans, are used to determine the fair value. See Note R for further information on the discount rates, prepayment rates and the weighted average cost to service the loans. For financial assets and liabilities carried at fair value on a nonrecurring basis, the following table provides fair value information as of December 31, 2015 and December 31, 2014.
| December 31, 2015
|  |  | Fair value measurements using:
(Dollars in thousands) | Fair value |  | Level 1 |  | Level 2 |  | Level 3
Impaired loans | 64,197 |  |  | — |  |  | — |  |  | 64,197 |
Other real estate not covered under loss share agreements remeasured during current year | 44,571 |  |  | — |  |  | — |  |  | 44,571 |
Other real estate covered under loss share agreements remeasured during current year | 4,403 |  |  | — |  |  | — |  |  | 4,403 |
Mortgage servicing rights | 17,997 |  |  | — |  |  | — |  |  | 17,997 |
| December 31, 2014
|  |  | Fair value measurements using:
| Fair value |  | Level 1 |  | Level 2 |  | Level 3
Impaired loans | 73,170 |  |  | — |  |  | — |  |  | 73,170 |
Other real estate not covered under loss share agreements remeasured during current year | 40,714 |  |  | — |  |  | — |  |  | 40,714 |
Other real estate covered under loss share agreements remeasured during current year | 17,664 |  |  | — |  |  | — |  |  | 17,664 |
Mortgage servicing rights | 13,562 |  |  | — |  |  | — |  |  | 13,562 |
No financial liabilities were carried at fair value on a nonrecurring basis as of December 31, 2015 and December 31, 2014.

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- Definition The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 30 -URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14172-108612 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14064-108612 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13537-108611 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13504-108611 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13433-108611 + Details
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