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INVESTMENT SECURITIES | 6 Months Ended
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Jun. 30, 2018
INVESTMENT SECURITIES [Abstract] |
INVESTMENT SECURITIES |
NOTE D: | INVESTMENT SECURITIES
The amortized cost and estimated fair value of investment securities as of June 30, 2018 and December 31, 2017 are as follows:
|  | June 30, 2018 |  |  | December 31, 2017 |
(000’s omitted) |  | Amortized Cost |  |  | Gross Unrealized Gains |  |  | Gross Unrealized Losses |  |  | Fair Value |  |  | Amortized Cost |  |  | Gross Unrealized Gains |  |  | Gross Unrealized Losses |  |  | Fair Value |
Available-for-Sale Portfolio: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury and agency securities |  | $ | 2,042,116 |  |  | $ | 477 |  |  | $ | 28,631 |  |  | $ | 2,013,962 |  |  | $ | 2,043,023 |  |  | $ | 15,886 |  |  | $ | 4,838 |  |  | $ | 2,054,071 |
Obligations of state and political subdivisions |  |  | 485,099 |  |  |  | 7,825 |  |  |  | 1,440 |  |  |  | 491,484 |  |  |  | 514,949 |  |  |  | 14,064 |  |  |  | 57 |  |  |  | 528,956 |
Government agency mortgage-backed securities |  |  | 364,919 |  |  |  | 1,724 |  |  |  | 10,746 |  |  |  | 355,897 |  |  |  | 358,180 |  |  |  | 3,121 |  |  |  | 3,763 |  |  |  | 357,538 |
Corporate debt securities |  |  | 2,618 |  |  |  | 0 |  |  |  | 55 |  |  |  | 2,563 |  |  |  | 2,648 |  |  |  | 0 |  |  |  | 25 |  |  |  | 2,623 |
Government agency collateralized mortgage obligations |  |  | 78,137 |  |  |  | 52 |  |  |  | 2,151 |  |  |  | 76,038 |  |  |  | 88,097 |  |  |  | 155 |  |  |  | 878 |  |  |  | 87,374 |
Marketable equity securities |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | 251 |  |  |  | 275 |  |  |  | 0 |  |  |  | 526 |
Total available-for-sale portfolio |  | $ | 2,972,889 |  |  | $ | 10,078 |  |  | $ | 43,023 |  |  | $ | 2,939,944 |  |  | $ | 3,007,148 |  |  | $ | 33,501 |  |  | $ | 9,561 |  |  | $ | 3,031,088 |
Equity and other Securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity securities, at fair value |  | $ | 251 |  |  | $ | 253 |  |  | $ | 0 |  |  | $ | 504 |  |  | $ | 0 |  |  | $ | 0 |  |  | $ | 0 |  |  | $ | 0 |
Federal Home Loan Bank common stock |  |  | 6,371 |  |  |  | 0 |  |  |  | 0 |  |  |  | 6,371 |  |  |  | 9,896 |  |  |  | 0 |  |  |  | 0 |  |  |  | 9,896 |
Federal Reserve Bank common stock |  |  | 30,690 |  |  |  | 0 |  |  |  | 0 |  |  |  | 30,690 |  |  |  | 30,690 |  |  |  | 0 |  |  |  | 0 |  |  |  | 30,690 |
Certificates of deposit |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | 3,865 |  |  |  | 0 |  |  |  | 0 |  |  |  | 3,865 |
Other equity securities, at cost |  |  | 5,843 |  |  |  | 0 |  |  |  | 0 |  |  |  | 5,843 |  |  |  | 5,840 |  |  |  | 0 |  |  |  | 0 |  |  |  | 5,840 |
Total equity and other securities |  | $ | 43,155 |  |  | $ | 253 |  |  | $ | 0 |  |  | $ | 43,408 |  |  | $ | 50,291 |  |  | $ | 0 |  |  | $ | 0 |  |  | $ | 50,291 |
A summary of investment securities that have been in a continuous unrealized loss position is as follows: As of June 30, 2018
|  | Less than 12 Months |  |  | 12 Months or Longer |  |  | Total |
(000’s omitted) |  |  | # |  |  | Fair Value |  |  | Gross Unrealized Losses |  |  |  | # |  |  | Fair Value |  |  | Gross Unrealized Losses |  |  |  | # |  |  | Fair Value |  |  | Gross Unrealized Losses |
Available-for-Sale Portfolio: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury and agency securities |  |  | 77 |  |  | $ | 1,924,896 |  |  | $ | 28,567 |  |  |  | 3 |  |  | $ | 14,945 |  |  | $ | 64 |  |  |  | 80 |  |  | $ | 1,939,841 |  |  | $ | 28,631 |
Obligations of state and political subdivisions |  |  | 224 |  |  |  | 111,946 |  |  |  | 1,440 |  |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | 224 |  |  |  | 111,946 |  |  |  | 1,440 |
Government agency mortgage-backed securities |  |  | 135 |  |  |  | 213,903 |  |  |  | 5,885 |  |  |  | 77 |  |  |  | 85,735 |  |  |  | 4,861 |  |  |  | 212 |  |  |  | 299,638 |  |  |  | 10,746 |
Corporate debt securities |  |  | 1 |  |  |  | 2,563 |  |  |  | 55 |  |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | 1 |  |  |  | 2,563 |  |  |  | 55 |
Government agency collateralized mortgage obligations |  |  | 32 |  |  |  | 58,808 |  |  |  | 1,868 |  |  |  | 9 |  |  |  | 11,419 |  |  |  | 283 |  |  |  | 41 |  |  |  | 70,227 |  |  |  | 2,151 |
Total available-for-sale investment portfolio |  |  | 469 |  |  | $ | 2,312,116 |  |  | $ | 37,815 |  |  |  | 89 |  |  | $ | 112,099 |  |  | $ | 5,208 |  |  |  | 558 |  |  | $ | 2,424,215 |  |  | $ | 43,023 |
As of December 31, 2017
|  | Less than 12 Months |  |  | 12 Months or Longer |  |  | Total |
(000’s omitted) |  |  | # |  |  | Fair Value |  |  | Gross Unrealized Losses |  |  |  | # |  |  | Fair Value |  |  | Gross Unrealized Losses |  |  |  | # |  |  | Fair Value |  |  | Gross Unrealized Losses |
Available-for-Sale Portfolio: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury and agency securities |  |  | 44 |  |  | $ | 699,709 |  |  | $ | 4,838 |  |  |  | 0 |  |  | $ | 0 |  |  | $ | 0 |  |  |  | 44 |  |  | $ | 699,709 |  |  | $ | 4,838 |
Obligations of state and political subdivisions |  |  | 45 |  |  |  | 23,432 |  |  |  | 57 |  |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | 45 |  |  |  | 23,432 |  |  |  | 57 |
Government agency mortgage-backed securities |  |  | 120 |  |  |  | 185,716 |  |  |  | 1,433 |  |  |  | 55 |  |  |  | 75,712 |  |  |  | 2,330 |  |  |  | 175 |  |  |  | 261,428 |  |  |  | 3,763 |
Corporate debt securities |  |  | 1 |  |  |  | 2,623 |  |  |  | 25 |  |  |  | 0 |  |  |  | 0 |  |  |  | 0 |  |  |  | 1 |  |  |  | 2,623 |  |  |  | 25 |
Government agency collateralized mortgage obligations |  |  | 39 |  |  |  | 80,041 |  |  |  | 878 |  |  |  | 1 |  |  |  | 1 |  |  |  | 0 |  |  |  | 40 |  |  |  | 80,042 |  |  |  | 878 |
Total available-for-sale investment portfolio |  |  | 249 |  |  | $ | 991,521 |  |  | $ | 7,231 |  |  |  | 56 |  |  | $ | 75,713 |  |  | $ | 2,330 |  |  |  | 305 |  |  | $ | 1,067,234 |  |  | $ | 9,561 |
The unrealized losses reported pertaining to securities issued by the U.S. government and its sponsored entities, include treasuries, agencies, and mortgage-backed securities issued by Ginnie Mae, Fannie Mae, and Freddie Mac, which are currently rated AAA by Moody’s Investor Services, AA+ by Standard & Poor’s and are guaranteed by the U.S. government. The majority of the obligations of state and political subdivisions and corporations carry a credit rating of A or better. Additionally, a majority of the obligations of state and political subdivisions carry a secondary level of credit enhancement. The Company does not intend to sell these securities, nor is it more likely than not that the Company will be required to sell these securities prior to recovery of the amortized cost. The unrealized losses in the portfolios are primarily attributable to changes in interest rates. As such, management does not believe any individual unrealized loss as of June 30, 2018 represents OTTI. The amortized cost and estimated fair value of debt securities at June 30, 2018, by contractual maturity, are shown below. Expected maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. Securities not due at a single maturity date are shown separately.
|  | Available-for-Sale |
(000’s omitted) |  | Amortized Cost |  |  | Fair Value |
Due in one year or less |  | $ | 63,241 |  |  | $ | 63,194 |
Due after one through five years |  |  | 1,884,323 |  |  |  | 1,861,933 |
Due after five years through ten years |  |  | 414,137 |  |  |  | 412,375 |
Due after ten years |  |  | 168,132 |  |  |  | 170,507 |
Subtotal |  |  | 2,529,833 |  |  |  | 2,508,009 |
Government agency mortgage-backed securities |  |  | 364,919 |  |  |  | 355,897 |
Government agency collateralized mortgage obligations |  |  | 78,137 |  |  |  | 76,038 |
Total |  | $ | 2,972,889 |  |  | $ | 2,939,944 |
As of June 30, 2018, $181.8 million of U.S. Treasury securities were pledged as collateral for securities sold under agreement to repurchase. All securities sold under agreement to repurchase as of June 30, 2018 have an overnight and continuous maturity.

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