INVESTMENTS | 5. INVESTMENTS Unrealized Gains and Losses The difference between amortized cost or cost and estimated fair value and gross unrealized gains and losses, by major investment category, consisted of the following: Amortized Gross Gross Cost Unrealized Unrealized or Cost Gains Losses Fair Value (In thousands) March 31, 2020 Debt securities - available-for-sale: United States government obligations and authorities $ 187,452 $ 8,924 $ 13 $ 196,363 Obligations of states and political subdivisions 21,935 400 37 22,298 Corporate 293,927 5,745 5,942 293,730 International 31,237 324 1,117 30,444 534,551 15,393 7,109 542,835 Debt securities - held-to-maturity: United States government obligations and authorities 3,555 53 65 3,543 Corporate 671 7 6 672 International 45 1 — 46 4,271 61 71 4,261 Total investments, excluding equity securities $ 538,822 $ 15,454 $ 7,180 $ 547,096 Amortized Gross Gross Cost Unrealized Unrealized or Cost Gains Losses Fair Value (In thousands) December 31, 2019 Debt securities - available-for-sale: United States government obligations and authorities $ 191,546 $ 3,073 $ 426 $ 194,193 Obligations of states and political subdivisions 23,748 294 22 24,020 Corporate 268,182 10,252 132 278,302 International 29,169 593 12 29,750 512,645 14,212 592 526,265 Debt securities - held-to-maturity: United States government obligations and authorities 3,585 12 39 3,558 Corporate 697 20 — 717 International 55 1 — 56 4,337 33 39 4,331 Total investments, excluding equity securities $ 516,982 $ 14,245 $ 631 $ 530,596 Net Realized and Unrealized Gains and Losses The Company calculates the gain or loss realized on the sale of investments by comparing the sales price (fair value) to the cost or amortized cost of the security sold. Net realized gains and losses on investments are determined in accordance with the specific identification method. Net realized and unrealized gains (losses) recognized in earnings, by major investment category, consisted of the following: Three Months Ended March 31, 2020 2019 (In thousands) Gross realized and unrealized gains: Debt securities $ 1,386 $ 317 Equity securities 319 2,830 Total gross realized and unrealized gains 1,705 3,147 Gross realized and unrealized losses: Debt securities (148) (400) Equity securities (4,382) (446) Total gross realized and unrealized losses (4,530) (846) Net realized and unrealized gains (losses) on investments $ (2,825) $ 2,301 The above line item, net realized and unrealized gains (losses) on investments, includes the following equity securities gains (losses) recognized in earnings: Three Months Ended March 31, 2020 2019 (In thousands) Net realized and unrealized gains (losses) $ (4,063) $ 2,384 Less: Net realized and unrealized gains (losses) on securities sold (635) 326 Net realized and unrealized gains (losses) recognized during the period still held as of the end-of-period $ (3,428) $ 2,058 Contractual Maturity Actual maturities may differ from contractual maturities because issuers may have the right to call or pre-pay obligations. Amortized cost and estimated fair value of debt securities, by contractual maturity, consisted of the following: March 31, 2020 Amortized Cost Fair Value Securities with Maturity Dates (In thousands) Debt securities, available-for-sale: One year or less $ 33,374 $ 33,413 Over one through five years 170,802 171,418 Over five through ten years 158,874 161,147 Over ten years 171,501 176,857 534,551 542,835 Debt securities, held-to-maturity: One year or less 285 286 Over one through five years 3,846 3,833 Over five through ten years 39 39 Over ten years 101 103 4,271 4,261 Total $ 538,822 $ 547,096 Net Investment Income Net investment income consisted of the following: Three Months Ended March 31, 2020 2019 (In thousands) Interest income $ 3,822 $ 3,657 Dividends income 70 53 Net investment income $ 3,892 $ 3,710 Aging of Gross Unrealized Losses Gross unrealized losses and related fair values for debt securities, grouped by duration of time in a continuous unrealized loss position, consisted of the following: Less than 12 months 12 months or longer Total Gross Gross Gross Fair Unrealized Fair Unrealized Fair Unrealized Value Losses Value Losses Value Losses (In thousands) March 31, 2020 Debt securities - available-for-sale: United States government obligations and authorities $ 810 $ 1 $ 268 $ 12 $ 1,078 $ 13 Obligations of states and political subdivisions 5,544 37 — — 5,544 37 Corporate 117,591 5,754 — 188 117,591 5,942 International 13,330 1,079 132 38 13,462 1,117 137,275 6,871 400 238 137,675 7,109 Debt securities, held-to-maturity: United States government obligations and authorities — — 2,222 65 2,222 65 Corporate 235 6 — — 235 6 International — — — — — — 235 6 2,222 65 2,457 71 Total investments, excluding equity securities $ 137,510 $ 6,877 $ 2,622 $ 303 $ 140,132 $ 7,180 Less than 12 months 12 months or longer Total Gross Gross Gross Fair Unrealized Fair Unrealized Fair Unrealized Value Losses Value Losses Value Losses (In thousands) December 31, 2019 Debt securities - available-for-sale: United States government obligations and authorities $ 49,833 $ 409 $ 2,218 $ 17 $ 52,051 $ 426 Obligations of states and political subdivisions 6,810 22 — — 6,810 22 Corporate 15,872 94 7,694 38 23,566 132 International 3,856 10 179 2 4,035 12 76,371 535 10,091 57 86,462 592 Debt securities, held-to-maturity: United States government obligations and authorities — — 2,287 39 2,287 39 Corporate — — — — — — International — — — — — — — — 2,287 39 2,287 39 Total investments, excluding equity securities $ 76,371 $ 535 $ 12,378 $ 96 $ 88,749 $ 631 As of March 31, 2020, the Company held a total of 522 debt securities that were in an unrealized loss position, of which 15 securities were in an unrealized loss position continuously for 12 months or more. As of December 31, 2019, the Company held a total of 203 debt securities that were in an unrealized loss position, of which 24 securities were in an unrealized loss position continuously for 12 months or more. The unrealized losses associated with these securities consisted primarily of losses related to corporate securities. Collateral Deposits |