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Available-For-Sale And Held-To-Maturity Securities | 12 Months Ended
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Dec. 31, 2017
Investments Debt And Equity Securities [Abstract] |
Available-For-Sale And Held-To-Maturity Securities | NOTE 7 – Available-for-Sale and Held-to-Maturity Securities The following tables provide a summary of the amortized cost and fair values of the available-for-sale securities and held-to-maturity securities at December 31, 2017 and 2016 (in thousands):
|  | December 31, 2017 |
|  | Amortized Cost |  |  | Gross Unrealized Gains (1) |  |  | Gross Unrealized Losses (1) |  |  | Estimated Fair Value |
Available-for-sale securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. government agency securities |  | $ | 5,022 |  |  | $ | — |  |  | $ | (39 | ) |  | $ | 4,983 |
State and municipal securities |  |  | 74,691 |  |  |  | — |  |  |  | (4,132 | ) |  |  | 70,559 |
Mortgage-backed securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agency |  |  | 308,409 |  |  |  | 102 |  |  |  | (2,981 | ) |  |  | 305,530 |
Commercial |  |  | 75,548 |  |  |  | 28 |  |  |  | (3,088 | ) |  |  | 72,488 |
Non-agency |  |  | 1,568 |  |  |  | — |  |  |  | — |  |  |  | 1,568 |
Corporate fixed income securities |  |  | 1,213,262 |  |  |  | 3,832 |  |  |  | (5,652 | ) |  |  | 1,211,442 |
Asset-backed securities |  |  | 2,098,958 |  |  |  | 12,877 |  |  |  | (4,897 | ) |  |  | 2,106,938 |
|  | $ | 3,777,458 |  |  | $ | 16,839 |  |  | $ | (20,789 | ) |  | $ | 3,773,508 |
Held-to-maturity securities (2) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage-backed securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agency |  | $ | 1,334,833 |  |  | $ | 13,621 |  |  | $ | (16,208 | ) |  | $ | 1,332,246 |
Commercial |  |  | 58,971 |  |  |  | 1,313 |  |  |  | — |  |  |  | 60,284 |
Asset-backed securities |  |  | 2,264,283 |  |  |  | 15,526 |  |  |  | (1,862 | ) |  |  | 2,277,947 |
Corporate fixed income securities |  |  | 40,011 |  |  |  | 27 |  |  |  | (37 | ) |  |  | 40,001 |
|  | $ | 3,698,098 |  |  | $ | 30,487 |  |  | $ | (18,107 | ) |  | $ | 3,710,478 |
|  | December 31, 2016 |
|  | Amortized Cost |  |  | Gross Unrealized Gains (1) |  |  | Gross Unrealized Losses (1) |  |  | Estimated Fair Value |
Available-for-sale securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. government agency securities |  | $ | 4,213 |  |  | $ | 2 |  |  | $ | (18 | ) |  | $ | 4,197 |
State and municipal securities |  |  | 76,066 |  |  |  | — |  |  |  | (3,576 | ) |  |  | 72,490 |
Mortgage-backed securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agency |  |  | 340,738 |  |  |  | 298 |  |  |  | (2,304 | ) |  |  | 338,732 |
Commercial |  |  | 77,417 |  |  |  | 59 |  |  |  | (4,703 | ) |  |  | 72,773 |
Non-agency |  |  | 2,032 |  |  |  | — |  |  |  | (140 | ) |  |  | 1,892 |
Corporate fixed income securities |  |  | 830,695 |  |  |  | 1,418 |  |  |  | (8,602 | ) |  |  | 823,511 |
Asset-backed securities |  |  | 1,858,929 |  |  |  | 9,857 |  |  |  | (1,068 | ) |  |  | 1,867,718 |
|  | $ | 3,190,090 |  |  | $ | 11,634 |  |  | $ | (20,411 | ) |  | $ | 3,181,313 |
Held-to-maturity securities (2) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage-backed securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agency |  | $ | 1,567,758 |  |  | $ | 14,537 |  |  | $ | (17,037 | ) |  | $ | 1,565,258 |
Commercial |  |  | 59,581 |  |  |  | 1,786 |  |  |  | — |  |  |  | 61,367 |
Non-agency |  |  | 688 |  |  |  | — |  |  |  | (13 | ) |  |  | 675 |
Asset-backed securities |  |  | 1,370,300 |  |  |  | 6,242 |  |  |  | (3,396 | ) |  |  | 1,373,146 |
Corporate fixed income securities |  |  | 40,078 |  |  |  | 30 |  |  |  | — |  |  |  | 40,108 |
|  | $ | 3,038,405 |  |  | $ | 22,595 |  |  | $ | (20,446 | ) |  | $ | 3,040,554 |
(1) | Unrealized gains/(losses) related to available-for-sale securities are reported in accumulated other comprehensive loss.
(2) | Held-to-maturity securities are carried in the consolidated statements of financial condition at amortized cost, and the changes in the value of these securities, other than impairment charges, are not reported on the consolidated financial statements.
For the year ended December 31, 2017, we received proceeds of $87.3 million from the sale of available for sale securities, which resulted in realized gains of $0.4 million. For the year ended December 31, 2016, there were no sales of available-for-sale securities. For the year ended December 31, 2015, we received proceeds of $641.6 million, from the sale of available-for-sale securities, which resulted in net realized gains of $3.2 million. During the years ended December 31, 2017, 2016, and 2015, unrealized gains, net of deferred tax expense, of $4.7 million, $5.8 million, and $1.4 million, respectively, were recorded in accumulated other comprehensive loss in the consolidated statements of financial condition. The table below summarizes the amortized cost and fair values of debt securities by contractual maturity (in thousands). Expected maturities may differ significantly from contractual maturities, as issuers may have the right to call or prepay obligations with or without call or prepayment penalties.
|  | December 31, 2017 |
|  | Available-for-sale securities |  |  | Held-to-maturity securities |
|  | Amortized Cost |  |  | Estimated Fair Value |  |  | Amortized Cost |  |  | Estimated Fair Value |
Debt securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Within one year |  | $ | 184,101 |  |  | $ | 184,021 |  |  | $ | 40,011 |  |  | $ | 40,001 |
After one year through three years |  |  | 229,680 |  |  |  | 229,627 |  |  |  | — |  |  |  | — |
After three years through five years |  |  | 318,964 |  |  |  | 316,198 |  |  |  | — |  |  |  | — |
After five years through ten years |  |  | 920,147 |  |  |  | 922,763 |  |  |  | 403,840 |  |  |  | 405,319 |
After ten years |  |  | 1,739,041 |  |  |  | 1,741,313 |  |  |  | 1,860,443 |  |  |  | 1,872,628 |
Mortgage-backed securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
After three years through five years |  |  | — |  |  |  | — |  |  |  | 58,971 |  |  |  | 60,284 |
After five years through ten years |  |  | 58,263 |  |  |  | 55,824 |  |  |  | 143,715 |  |  |  | 141,770 |
After ten years |  |  | 327,262 |  |  |  | 323,762 |  |  |  | 1,191,118 |  |  |  | 1,190,476 |
|  | $ | 3,777,458 |  |  | $ | 3,773,508 |  |  | $ | 3,698,098 |  |  | $ | 3,710,478 |
The maturities of our available-for-sale (fair value) and held-to-maturity (amortized cost) securities at December 31, 2017, are as follows (in thousands):
|  | Within 1 Year |  |  | 1-5 Years |  |  | 5-10 Years |  |  | After 10 Years |  |  | Total |
Available-for-sale: (1) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. government agency securities |  | $ | 1,722 |  |  | $ | 3,261 |  |  | $ | — |  |  | $ | — |  |  | $ | 4,983 |
State and municipal securities |  |  | 274 |  |  |  | 84 |  |  |  | 18,745 |  |  |  | 51,456 |  |  |  | 70,559 |
Mortgage-backed securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agency |  |  | — |  |  |  | — |  |  |  | 338 |  |  |  | 305,192 |  |  |  | 305,530 |
Commercial |  |  | — |  |  |  | — |  |  |  | 55,486 |  |  |  | 17,002 |  |  |  | 72,488 |
Non-agency |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 1,568 |  |  |  | 1,568 |
Corporate fixed income securities |  |  | 182,025 |  |  |  | 542,480 |  |  |  | 486,937 |  |  |  | — |  |  |  | 1,211,442 |
Asset-backed securities |  |  | — |  |  |  | — |  |  |  | 417,081 |  |  |  | 1,689,857 |  |  |  | 2,106,938 |
|  | $ | 184,021 |  |  | $ | 545,825 |  |  | $ | 978,587 |  |  | $ | 2,065,075 |  |  | $ | 3,773,508 |
Held-to-maturity: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage-backed securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agency |  | $ | — |  |  | $ | — |  |  | $ | 143,715 |  |  | $ | 1,191,118 |  |  | $ | 1,334,833 |
Commercial |  |  | — |  |  |  | 58,971 |  |  |  | — |  |  |  | — |  |  |  | 58,971 |
Asset-backed securities |  |  | — |  |  |  | — |  |  |  | 403,840 |  |  |  | 1,860,443 |  |  |  | 2,264,283 |
Corporate fixed income securities |  |  | 40,011 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 40,011 |
|  | $ | 40,011 |  |  | $ | 58,971 |  |  | $ | 547,555 |  |  | $ | 3,051,561 |  |  | $ | 3,698,098 |
(1) | Due to the immaterial amount of income recognized on tax-exempt securities, yields were not calculated on a tax-equivalent basis.
At December 31, 2017 and 2016, securities of $2.2 billion and $2.0 billion, respectively, were pledged at the Federal Home Loan Bank as collateral for borrowings and letters of credit obtained to secure public deposits. At December 31, 2017 and 2016, securities of $2.0 billion and $1.7 billion, respectively, were pledged with the Federal Reserve discount window. The following table shows the gross unrealized losses and fair value of the Company’s investment securities with unrealized losses, aggregated by investment category and length of time the individual investment securities have been in continuous unrealized loss positions, at December 31, 2017 (in thousands):
|  | Less than 12 months |  |  | 12 months or more |  |  | Total |
|  | Gross Unrealized Losses |  |  | Estimated Fair Value |  |  | Gross Unrealized Losses |  |  | Estimated Fair Value |  |  | Gross Unrealized Losses |  |  | Estimated Fair Value |
Available-for-sale securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. government securities |  | $ | (39 | ) |  | $ | 4,983 |  |  |  | — |  |  |  | — |  |  | $ | (39 | ) |  | $ | 4,983 |
State and municipal securities |  |  | (59 | ) |  |  | 2,797 |  |  |  | (4,073 | ) |  |  | 67,762 |  |  |  | (4,132 | ) |  |  | 70,559 |
Mortgage-backed securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agency |  |  | (1,024 | ) |  |  | 113,363 |  |  |  | (1,957 | ) |  |  | 158,880 |  |  |  | (2,981 | ) |  |  | 272,243 |
Commercial |  |  | — |  |  |  | — |  |  |  | (3,088 | ) |  |  | 71,161 |  |  |  | (3,088 | ) |  |  | 71,161 |
Corporate fixed income securities |  |  | (2,513 | ) |  |  | 504,591 |  |  |  | (3,139 | ) |  |  | 185,879 |  |  |  | (5,652 | ) |  |  | 690,470 |
Asset-backed securities |  |  | (4,897 | ) |  |  | 175,074 |  |  |  | — |  |  |  | — |  |  |  | (4,897 | ) |  |  | 175,074 |
|  | $ | (8,532 | ) |  | $ | 800,808 |  |  | $ | (12,257 | ) |  | $ | 483,682 |  |  | $ | (20,789 | ) |  | $ | 1,284,490 |
Held-to-maturity securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage-backed securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agency |  | $ | (743 | ) |  | $ | 76,481 |  |  | $ | (15,465 | ) |  | $ | 697,809 |  |  | $ | (16,208 | ) |  | $ | 774,290 |
Asset-backed securities |  |  | (29 | ) |  |  | 29,399 |  |  |  | (1,833 | ) |  |  | 42,906 |  |  |  | (1,862 | ) |  |  | 72,305 |
Corporate fixed income securities |  |  | (37 | ) |  |  | 9,965 |  |  |  | — |  |  |  | — |  |  |  | (37 | ) |  |  | 9,965 |
|  | $ | (809 | ) |  | $ | 115,845 |  |  | $ | (17,298 | ) |  | $ | 740,715 |  |  | $ | (18,107 | ) |  | $ | 856,560 |
At December 31, 2017, the amortized cost of 186 securities classified as available for sale exceeded their fair value by $20.8 million, of which $12.3 million related to investment securities that had been in a loss position for 12 months or longer. The total fair value of these investments at December 31, 2017, was $1.3 billion, which was 34.0% of our available-for-sale portfolio. At December 31, 2017, the carrying value of 42 securities held to maturity exceeded their fair value by $18.1 million, of which $17.3 million related to securities held to maturity that have been in a loss position for 12 months or longer. As discussed in more detail below, we conduct periodic reviews of all securities with unrealized losses to assess whether the impairment is other-than-temporary. Other-Than-Temporary Impairment We evaluate all securities in an unrealized loss position quarterly to assess whether the impairment is other-than-temporary. Our OTTI assessment is a subjective process requiring the use of judgments and assumptions. There was no credit-related OTTI recognized during the years ended December 31, 2017, 2016, and 2015. We believe the gross unrealized losses of $38.9 million related to our investment portfolio, as of December 31, 2017, are attributable to changes in market interest rates. We, therefore, do not expect to incur any credit losses related to these securities. In addition, we have no intent to sell these securities with unrealized losses, and it is not more likely than not that we will be required to sell these securities prior to recovery of the amortized cost. Accordingly, we have concluded that the impairment on these securities is not other-than-temporary.

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