Investments | 4. Investments The amortized cost and estimated fair value of investments in debt and equity securities by category is as follows (in thousands): Gross Gross Amortized Unrealized Unrealized Fair As of September 30, 2017 Cost Gains Losses Value U.S. Treasury securities and obligations of U.S. Government $ 42,034 $ 6 $ (6) $ 42,034 Corporate bonds 283,851 1,810 (1,040) 284,621 Collateralized corporate bank loans 123,070 628 (455) 123,243 Municipal bonds 148,473 917 (407) 148,983 Mortgage-backed 19,457 64 (168) 19,353 Total debt securities 616,885 3,425 (2,076) 618,234 Total equity securities 26,681 22,237 (1,119) 47,799 Total other investments 3,763 458 - 4,221 Total investments $ 647,329 $ 26,120 $ (3,195) $ 670,254 As of December 31, 2016 U.S. Treasury securities and obligations of U.S. Government $ 41,976 $ 66 $ (20) $ 42,022 Corporate bonds 224,915 1,722 (575) 226,062 Collateralized corporate bank loans 105,220 959 (170) 106,009 Municipal bonds 165,900 956 (2,961) 163,895 Mortgage-backed 59,773 49 (353) 59,469 Total debt securities 597,784 3,752 (4,079) 597,457 Total equity securities 31,449 21,052 (790) 51,711 Total other investments 3,763 1,188 - 4,951 Total investments $ 632,996 $ 25,992 $ (4,869) $ 654,119 Major categories of net realized gains (losses) on investments are summarized as follows (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2017 2016 2017 2016 U.S. Treasury securities and obligations of U.S. Government $ - $ - $ - $ - Corporate bonds (107) (81) (125) (1) Collateralized corporate bank loans 8 (98) 56 (116) Municipal bonds 120 (97) 204 (165) Mortgage-backed (1) (1) (1) (1) Equity securities 3,168 1,382 5,545 1,872 Gain on investments 3,188 1,105 5,679 1,589 Change in unrealized losses on other investments (228) - (731) - Other-than-temporary impairments (850) - (4,257) (2,888) Net realized gains (losses) $ 2,110 $ 1,105 $ 691 $ (1,299) We realized gross gains on investments of $3.4 million and $1.4 million during the three months ended September 30, 2017 and 2016, respectively, and $6.4 million and $2.1 million for the nine months ended September 30, 2017 and 2016, respectively. We realized gross losses on investments of $0.2 million and $0.3 million for the three months ended September 30, 2017 and 2016, respectively, and $0.7 million and $0.5 million for the nine months ended September 30, 2017 and 2016, respectively. We recorded proceeds from the sale of investment securities of $11.4 million and $5.4 million during the three months ended September 30, 2017 and 2016, respectively, and $19.4 million and $21.3 million for the nine months ended September 30, 2017 and 2016, respectively. Realized investment gains and losses are recognized in operations on the specific identification method. The following schedules summarize the gross unrealized losses showing the length of time that investments have been continuously in an unrealized loss position as of September 30, 2017 and December 31, 2016 (in thousands): As of September 30, 2017 12 months or less Longer than 12 months Total Unrealized Unrealized Unrealized Fair Value Losses Fair Value Losses Fair Value Losses U.S. Treasury securities and obligations of U.S. Government $ 36,977 $ (6) $ - $ - $ 36,977 $ (6) Corporate bonds 99,803 (1,040) - - 99,803 (1,040) Collateralized corporate bank loans 33,925 (385) 2,474 (70) 36,399 (455) Municipal bonds 27,971 (355) 2,707 (52) 30,678 (407) Mortgage-backed 12,886 (166) 1,228 (2) 14,114 (168) Total debt securities 211,562 (1,952) 6,409 (124) 217,971 (2,076) Total equity securities 3,251 (1,119) - - 3,251 (1,119) Total other investments 582 - - - 582 - Total investments $ 215,395 $ (3,071) $ 6,409 $ (124) $ 221,804 $ (3,195) As of December 31, 2016 12 months or less Longer than 12 months Total Unrealized Unrealized Unrealized Fair Value Losses Fair Value Losses Fair Value Losses U.S. Treasury securities and obligations of U.S. Government $ 7,037 $ (20) $ - $ - $ 7,037 $ (20) Corporate bonds 86,592 (575) - - 86,592 (575) Collateralized corporate bank loans 2,637 (7) 8,314 (163) 10,951 (170) Municipal bonds 70,633 (1,327) 13,574 (1,634) 84,207 (2,961) Mortgage-backed 29,475 (348) 2,430 (5) 31,905 (353) Total debt securities 196,374 (2,277) 24,318 (1,802) 220,692 (4,079) Total equity securities 4,109 (483) 2,037 (307) 6,146 (790) Total other investments - - - - - - Total investments $ 200,483 $ (2,760) $ 26,355 $ (2,109) $ 226,838 $ (4,869) At September 30, 2017, the gross unrealized losses more than twelve months old were attributable to 17 debt security positions . At December 31, 2016, the gross unrealized losses more than twelve months old were attributable to 28 debt security positions and one equity position. We consider these losses as a temporary decline in value as they are predominately on bonds that we do not intend to sell and do not believe we will be required to sell prior to recovery of our amortized cost basis. We see no other indications that the decline in values of these securities is other-than-temporary. We recognized $4.3 million of other-than-temporary impairments for the nine months ended September 30, 2017 related to six municipal bond securities. We complete a detailed analysis each quarter to assess whether any decline in the fair value of any investment below cost is deemed other-than-temporary. All securities with an unrealized loss are reviewed. We recognize an impairment loss when an investment's value declines below cost, adjusted for accretion, amortization and previous other-than-temporary impairments, and it is determined that the decline is other-than-temporary. Debt Investments : We assess whether we intend to sell, or it is more likely than not that we will be required to sell, a fixed maturity investment before recovery of its amortized cost basis less any current period credit losses. For fixed maturity investments that are considered other-than-temporarily impaired and that we do not intend to sell and will not be required to sell, we separate the amount of the impairment into the amount that is credit related (credit loss component) and the amount due to all other factors. The credit loss component is recognized in earnings and is the difference between the investment’s amortized cost basis and the present value of its expected future cash flows. The remaining difference between the investment’s fair value and the present value of future expected cash flows is recognized in other comprehensive income. Equity Investments : Some of the factors considered in evaluating whether a decline in fair value for an equity investment is other-than-temporary include: (1) our ability and intent to retain the investment for a period of time sufficient to allow for an anticipated recovery in value; (2) the recoverability of cost; (3) the length of time and extent to which the fair value has been less than cost; and (4) the financial condition and near-term and long-term prospects for the issuer, including the relevant industry conditions and trends, and implications of rating agency actions and offering prices. When it is determined that an equity investment is other-than-temporarily impaired, the security is written down to fair value, and the amount of the impairment is included in earnings as a realized investment loss. The fair value then becomes the new cost basis of the investment, and any subsequent recoveries in fair value are recognized at disposition. We recognize a realized loss when impairment is deemed to be other-than-temporary even if a decision to sell an equity investment has not been made. When we decide to sell a temporarily impaired available-for-sale equity investment and we do not expect the fair value of the equity investment to fully recover prior to the expected time of sale, the investment is deemed to be other-than-temporarily impaired in the period in which the decision to sell is made. Details regarding the carrying value of the other investments portfolio as of September 30, 2017 and December 31, 2016 were as follows (in thousands): September 30, December 31, 2017 2016 Investment Type Equity warrant $ 4,221 $ 4,951 Total other investments $ 4,221 $ 4,951 We acquired this warrant in an active market. The warrant entitles us to buy the underlying common stock of a publicly traded company at a fixed price until the expiration date of January 19, 2021. The amortized cost and estimated fair value of debt securities at September 30, 2017 by contractual maturity are as follows. Expected maturities may differ from contractual maturities because certain borrowers may have the right to call or prepay obligations with or without penalties. Amortized Fair Cost Value (in thousands) Due in one year or less $ 163,460 $ 163,697 Due after one year through five years 254,385 255,618 Due after five years through ten years 134,207 134,902 Due after ten years 45,376 44,664 Mortgage-backed 19,457 19,353 $ 616,885 $ 618,234 |