The following tables summarize all fixed maturity securities in an unrealized loss position at December 31, 2018 and 2017 by the length of time those securities have been continuously in an unrealized loss position. (11) Securities in an Unrealized Loss Position Fixed Maturity Securities — A summary of the Company’s non-investment grade fixed maturity securities that were in an unrealized loss position at December 31, 2018 is presented in the table below: For OTTI of fixed maturity securities that management does not intend to sell or, more likely than not, would not be required to sell, the portion of the decline in value considered to be due to credit factors is recognized in earnings and the portion of the decline in value considered to be due to non-credit factors is recognized in other comprehensive income. For the year ended December 31, 2018, OTTI recognized in earnings for fixed maturity securities was $6 million. For the year ended December 31, 2017, there were no OTTI on fixed maturity securities. The Company has evaluated its fixed maturity securities in an unrealized loss position and believes the unrealized losses are due primarily to temporary market and sector-related factors rather than to issuer-specific factors. None of these securities are delinquent or in default on financial covenants. Based on its assessment of these issuers, the Company expects them to continue to meet their contractual payment obligations as they become due and does not consider any of these securities to be OTTI. 73 ($ in thousands) Number of Securities Aggregate Fair Value Gross Unrealized Loss Foreign government 13 $ 140,854 $ 21,411 Corporate 13 120,078 13,111 Asset-backed securities 5 14,662 2,593 Mortgage-backed securities 5 8,741 69 Total 36 $ 284,335 $ 37,184 Less Than 12 Months 12 Months or Greater Total (In thousands) Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses December 31, 2018 U.S. government and government agency $ 195,359 $ 933 $ 130,815 $ 3,977 $ 326,174 $ 4,910 State and municipal 701,700 6,874 744,905 17,738 1,446,605 24,612 Mortgage-backed securities 334,063 2,911 712,595 21,022 1,046,658 23,933 Asset-backed securities 1,687,665 28,965 342,855 4,722 2,030,520 33,687 Corporate 1,730,513 54,181 954,763 49,129 2,685,276 103,310 Foreign government 246,273 24,197 80,004 914 326,277 25,111 Fixed maturity securities $ 4,895,573 $ 118,061 $ 2,965,937 $ 97,502 $ 7,861,510 $ 215,563 December 31, 2017 U.S. government and government agency $ 92,167 $ 1,491 $ 72,055 $ 2,341 $ 164,222 $ 3,832 State and municipal 735,972 5,944 345,755 6,630 1,081,727 12,574 Mortgage-backed securities 480,435 5,110 373,956 11,065 854,391 16,175 Asset-backed securities 1,127,309 8,298 167,412 2,314 1,294,721 10,612 Corporate 1,103,747 8,224 170,858 5,946 1,274,605 14,170 Foreign government 244,139 2,615 25,824 251 269,963 2,866 Fixed maturity securities $ 3,783,769 $ 31,682 $ 1,155,860 $ 28,547 $ 4,939,629 $ 60,229