Net realized and unrealized gains (losses) | Investments in debt and equity securities. The total fair values of the Company's investments in debt and equity securities are as follows: June 30, 2021 December 31, 2020 ($000 omitted) Investments in: Debt securities 635,162 631,386 Equity securities 76,236 53,001 711,398 684,387 As of June 30, 2021 and December 31, 2020, the net unrealized investment gains relating to investments in equity securities held we re $13.6 million and $4.4 million, respectively (refer to Note 5). The amortized costs and fair values of investments in debt securities are as follows: June 30, 2021 December 31, 2020 Amortized costs Fair values Amortized costs Fair values ($000 omitted) Municipal 40,466 42,462 45,138 47,603 Corporate 291,413 305,229 285,962 305,450 Foreign 275,764 280,861 261,748 271,711 U.S. Treasury Bonds 6,570 6,610 6,564 6,622 614,213 635,162 599,412 631,386 Foreign debt securities consist of Canadian government, provincial and corporate bonds, United Kingdom treasury and corporate bonds, and Mexican government bonds. Gross unrealized gains and losses on investments in debt securities are as follows: June 30, 2021 December 31, 2020 Gains Losses Gains Losses ($000 omitted) Municipal 1,997 1 2,465 — Corporate 14,320 504 19,594 106 Foreign 5,767 670 10,024 61 U.S. Treasury Bonds 65 25 82 24 22,149 1,200 32,165 191 Debt securities as of June 30, 2021 mature, according to their contractual terms, as follows (actual maturities may differ due to call or prepayment rights): Amortized costs Fair values ($000 omitted) In one year or less 59,019 59,695 After one year through five years 375,721 385,551 After five years through ten years 148,716 156,299 After ten years 30,757 33,617 614,213 635,162 Gross unrealized losses on investments in debt securities and the fair values of the related securities, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position at June 30, 2021, were: Less than 12 months More than 12 months Total Losses Fair values Losses Fair values Losses Fair values ($000 omitted) Municipal 1 96 — — 1 96 Corporate 504 31,489 — — 504 31,489 Foreign 645 74,153 25 254 670 74,407 U.S. Treasury Bonds 1 109 24 1,022 25 1,131 1,151 105,847 49 1,276 1,200 107,123 The number of specific debt investment holdings held in an unrealized loss position as of June 30, 2021 was 51. Of these securities, 3 were in unrealized loss positions for more than 12 months. Since the Company does not intend to sell and will more likely than not maintain each investment security until its maturity or anticipated recovery in value, and no significant credit risk is deemed to exist, these investments are not considered as credit-impaired. The Company believes its investment portfolio is diversified and expects no material loss to result from the failure to perform by issuers of the debt securities it holds. Investments made by the Company are not collateralized. Gross unrealized losses on investments in debt securities and the fair values of the related securities, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position at December 31, 2020, were: Less than 12 months More than 12 months Total Losses Fair values Losses Fair values Losses Fair values ($000 omitted) Municipal — — — — — — Corporate 106 13,518 — — 106 13,518 Foreign 40 2,912 21 254 61 3,166 U.S. Treasury Bonds — — 24 1,022 24 1,022 146 16,430 45 1,276 191 17,706 Net realized and unrealized gains (losses). Realized and unrealized gains and losses are detailed as follows: Three Months Ended Six Months Ended 2021 2020 2021 2020 ($000 omitted) Realized gains 7,909 1,355 8,080 1,508 Realized losses — (657) (2,469) (1,347) Net unrealized investment gains (losses) recognized on equity securities still held at end of period 3,745 4,366 9,318 (6,188) 11,654 5,064 14,929 (6,027) Realized gains and losses during the second quarter 2021 included $7.3 million of gains on sales of buildings, while realized gains and losses during the second quarter 2020 included $1.1 million of gains from settlements of equity investments with no previously readily determinable fair values. Additionally, realized gains and losses for the first six months of 2021 included a $2.5 million loss related to a disposal of an equity method investment. Investment gains and losses recognized related to investments in equity securities are as follows: Three Months Ended Six Months Ended 2021 2020 2021 2020 ($000 omitted) Net investment gains (losses) recognized on equity securities during the period 3,780 3,966 9,361 (7,095) Less: Net realized gains (losses) on equity securities sold during the period 35 (400) 43 (907) Net unrealized investment gains (losses) recognized on equity securities still held at end of period 3,745 4,366 9,318 (6,188) Proceeds from sales of investments in securities are as follows: Three Months Ended Six Months Ended 2021 2020 2021 2020 ($000 omitted) Proceeds from sales of debt securities 11,634 3,270 14,571 14,773 Proceeds from sales of equity securities 59 433 173 726 Total proceeds from sales of investments in securities 11,693 3,703 14,744 15,499 |