Investments Debt And Equity Securities (Details) (USD $) | 3 Months Ended | 9 Months Ended | | |
In Thousands, unless otherwise specified | Sep. 30, 2013 | Sep. 30, 2012 | Sep. 30, 2013 | Sep. 30, 2012 | Dec. 31, 2012 | Dec. 31, 2011 |
Investments Including Short Term And Cash And Cash Equivalents [Abstract] | ' | ' | ' | ' | ' | ' |
Fixed maturity securities | $822,718 | ' | $822,718 | ' | $791,528 | ' |
Fixed maturity securities percent | 84.40% | ' | 84.40% | ' | 82.70% | ' |
Equity securities | 53,067 | ' | 53,067 | ' | 53,741 | ' |
Equity securities percent | 5.40% | ' | 5.40% | ' | 5.60% | ' |
Mortgage loans | 680 | ' | 680 | ' | 1,509 | ' |
Mortgage loans percent | 0.10% | ' | 0.10% | ' | 0.20% | ' |
Policy loans | 47,359 | ' | 47,359 | ' | 42,993 | ' |
Policy loans percent | 4.90% | ' | 4.90% | ' | 4.50% | ' |
Real estate and other long-term investments | 8,533 | ' | 8,533 | ' | 8,553 | ' |
Real estate and other long-term investments percent | 0.90% | ' | 0.90% | ' | 0.90% | ' |
Short-term investments | 0 | ' | 0 | ' | 2,340 | ' |
Short-term investments percent | 0.00% | ' | 0.00% | ' | 0.20% | ' |
Cash and cash equivalents | 41,687 | 39,830 | 41,687 | 39,830 | 56,299 | 33,255 |
Cash and cash equivalents percent | 4.30% | ' | 4.30% | ' | 5.90% | ' |
Total cash, cash equivalents and investments | 974,044 | ' | 974,044 | ' | 956,963 | ' |
Total cash, cash equivalents and investments percent | 100.00% | ' | 100.00% | ' | 100.00% | ' |
Unrealized Gain (Loss) on Investments [Abstract] | ' | ' | ' | ' | ' | ' |
Available-for-sale Debt Securities, Amortized Cost Basis | 585,127 | ' | 585,127 | ' | 559,736 | ' |
Available-for-sale Equity Securities, Amortized Cost Basis | 52,392 | ' | 52,392 | ' | 52,744 | ' |
Available-for-sale Securities, Debt Securities, Amortized Cost Basis, Total | 585,127 | ' | 585,127 | ' | 559,736 | ' |
Available-for-sale Debt Securities, Gross Unrealized Gains, Total | 25,812 | ' | 25,812 | ' | 45,873 | ' |
Available-for-sale Debt Securities, Gross Unrealized Losses, Total | 11,560 | ' | 11,560 | ' | 1,089 | ' |
Available-for-sale Debt Securities, Fair Value | 599,379 | ' | 599,379 | ' | 604,520 | ' |
Held-to-maturity Securities, Debt Securities, Net Carrying Amount | 223,339 | ' | 223,339 | ' | 187,008 | ' |
Held-to-maturity Securities, Unrecognized Holding Gain | 3,496 | ' | 3,496 | ' | 7,109 | ' |
Held-to-maturity Securities, Unrecognized Holding Loss | 5,720 | ' | 5,720 | ' | 378 | ' |
Held-to-maturity Securities, Debt Securities, Fair Value | 221,115 | ' | 221,115 | ' | 193,739 | ' |
Total Fixed Maturity Securities, Amortized Cost | 808,466 | ' | 808,466 | ' | ' | ' |
Total Fixed Maturity Securities, Fair Value | 820,494 | ' | 820,494 | ' | ' | ' |
Unrealized Continuous Losses on Investments [Abstract] | ' | ' | ' | ' | ' | ' |
Debt Securities In Continuous Loss Less Than 12 Months Fair Value | 296,241 | ' | 296,241 | ' | 127,739 | ' |
Debt Securities Continuous Loss Position Less Than 12 Months Unrealized Losses | 14,678 | ' | 14,678 | ' | 1,131 | ' |
Number of Debt Securities In Continuous Loss Less Than 12 Months | 309 | ' | 309 | ' | 119 | ' |
Debt Securities In Continuous Loss Position 12 Months Or Longer, Fair Value | 30,249 | ' | 30,249 | ' | 5,151 | ' |
Debt Securities In Continuous Loss Position 12 Months Or Longer, Unrealized Losses | 2,602 | ' | 2,602 | ' | 336 | ' |
Number of Debt Securities In Continuous Loss Position 12 Months or Longer | 35 | ' | 35 | ' | 3 | ' |
Debt Securities In Continuous Loss Position, Aggregate Fair Value | 326,490 | ' | 326,490 | ' | 132,890 | ' |
Debt Securities In Continuous Loss Position, Aggregate Unrealized Losses | 17,280 | ' | 17,280 | ' | 1,467 | ' |
Number of Debt Securities In Continuous Loss Position, Aggregate | 344 | ' | 344 | ' | 122 | ' |
Available-for-sale Securities, Gross Realized Gain (Loss) [Abstract] | ' | ' | ' | ' | ' | ' |
Proceeds from Sale of Available-for-sale Securities, Fixed Maturities | 259 | 0 | 317 | 503 | ' | ' |
Proceeds from Sale of Available-for-sale Securities, Equity | 0 | 2,856 | 0 | 2,856 | ' | ' |
Schedule of Fixed Maturities [Abstract] | ' | ' | ' | ' | ' | ' |
Available-for-sale Securities, Debt Maturities, Due in One Year or Less, Amortized Cost Basis | 5,077 | ' | 5,077 | ' | ' | ' |
Available-for-sale Securities, Debt Maturities, Due in One Year or Less, Fair Value | 5,142 | ' | 5,142 | ' | ' | ' |
Available-for-sale Securities, Debt Maturities, Due After One Year Through Five Years, Amortized Cost Basis | 110,617 | ' | 110,617 | ' | ' | ' |
Available-for-sale Securities, Debt Maturities, Due After One Year Through Five Years, Fair Value | 117,370 | ' | 117,370 | ' | ' | ' |
Available-for-sale Securities, Debt Maturities, Due After Five Years Through Ten Years, Amortized Cost Basis | 99,777 | ' | 99,777 | ' | ' | ' |
Available-for-sale Securities, Debt Maturities, Due After Five Years Through Ten Years, Fair Value | 102,778 | ' | 102,778 | ' | ' | ' |
Available-for-sale Securities, Debt Maturities, Due After Ten Years, Amortized Cost Basis | 365,517 | ' | 365,517 | ' | ' | ' |
Available-for-sale Securities, Debt Maturities, Due After Ten Years, Fair Value | 369,644 | ' | 369,644 | ' | ' | ' |
Available-for-sale Securities, Debt Maturities, without Single Maturity Date, Amortized Cost Basis | 4,139 | ' | 4,139 | ' | ' | ' |
Available-for-sale Securities, Debt Maturities, without Single Maturity Date, Fair Value | 4,445 | ' | 4,445 | ' | ' | ' |
Held-to-maturity Securities, Debt Maturities, Due in One Year or Less, Amortized Cost Basis | 3,783 | ' | 3,783 | ' | ' | ' |
Held-to-maturity Securities, Debt Maturities, Due in One Year or Less, Fair Value | 3,834 | ' | 3,834 | ' | ' | ' |
Held-to-maturity Securities, Debt Maturities, Due After One Year Through Five Years, Amortized Cost Basis | 43,808 | ' | 43,808 | ' | ' | ' |
Held-to-maturity Securities, Debt Maturities, Due After One Year Through Five Years, Fair Value | 44,518 | ' | 44,518 | ' | ' | ' |
Held-to-maturity Securities, Debt Maturities, Due After Five Years Through Ten Years, Amortized Cost Basis | 45,721 | ' | 45,721 | ' | ' | ' |
Held-to-maturity Securities, Debt Maturities, Due After Five Years Through Ten Years, Fair Value | 46,413 | ' | 46,413 | ' | ' | ' |
Held-to-maturity Securities, Debt Maturities, Due After Ten Years, Amortized Cost Basis | 130,027 | ' | 130,027 | ' | ' | ' |
Held-to-maturity Securities, Debt Maturities, Due After Ten Years, Fair Value | 126,350 | ' | 126,350 | ' | ' | ' |
Sale of bonds, number of transactions of fixed maturity securities sold | ' | ' | 4 | ' | ' | ' |
Sale of security, number of transactions of equity securities sold | ' | 1 | ' | 1 | ' | ' |
Sale of bonds, number of held-to-maturity bonds sold | 0 | 0 | 0 | 0 | ' | ' |
US Treasury Securities [Member] | ' | ' | ' | ' | ' | ' |
Unrealized Gain (Loss) on Investments [Abstract] | ' | ' | ' | ' | ' | ' |
Available-for-sale Debt Securities, Amortized Cost Basis | 10,124 | ' | 10,124 | ' | 10,170 | ' |
Available-for-sale Securities, Gross Unrealized Gains | 2,679 | ' | 2,679 | ' | 3,773 | ' |
Available-for-sale Securities, Gross Unrealized Losses | 0 | ' | 0 | ' | 0 | ' |
Available-for-sale Securities, Fair Value | 12,803 | ' | 12,803 | ' | 13,943 | ' |
US Government Agencies Debt Securities [Member] | ' | ' | ' | ' | ' | ' |
Unrealized Gain (Loss) on Investments [Abstract] | ' | ' | ' | ' | ' | ' |
Available-for-sale Debt Securities, Amortized Cost Basis | 62,949 | ' | 62,949 | ' | 81,788 | ' |
Available-for-sale Securities, Gross Unrealized Gains | 1,510 | ' | 1,510 | ' | 3,815 | ' |
Available-for-sale Securities, Gross Unrealized Losses | 152 | ' | 152 | ' | 22 | ' |
Available-for-sale Securities, Fair Value | 64,307 | ' | 64,307 | ' | 85,581 | ' |
Held-to-maturity Securities, Debt Securities, Net Carrying Amount | 8,909 | ' | 8,909 | ' | 28,632 | ' |
Held-to-maturity Securities, Unrecognized Holding Gain | 283 | ' | 283 | ' | 514 | ' |
Held-to-maturity Securities, Unrecognized Holding Loss | 0 | ' | 0 | ' | 0 | ' |
Held-to-maturity Securities, Debt Securities, Fair Value | 9,192 | ' | 9,192 | ' | 29,146 | ' |
Unrealized Continuous Losses on Investments [Abstract] | ' | ' | ' | ' | ' | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 11,609 | ' | 11,609 | ' | 10,603 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | 152 | ' | 152 | ' | 22 | ' |
Number of Available-for-sale Securities In Continuous Loss Position Less Than 12 Months | 8 | ' | 8 | ' | 9 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 0 | ' | 0 | ' | 0 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses | 0 | ' | 0 | ' | 0 | ' |
Number of Available-for-sale Securities In Continuous Loss Position For 12 months or Greater | 0 | ' | 0 | ' | 0 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 11,609 | ' | 11,609 | ' | 10,603 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | 152 | ' | 152 | ' | 22 | ' |
Number of Available-for-sale Securities In Continuous Loss Position Aggregate | 8 | ' | 8 | ' | 9 | ' |
US States and Political Subdivisions Debt Securities [Member] | ' | ' | ' | ' | ' | ' |
Unrealized Gain (Loss) on Investments [Abstract] | ' | ' | ' | ' | ' | ' |
Available-for-sale Debt Securities, Amortized Cost Basis | 320,691 | ' | 320,691 | ' | 265,812 | ' |
Available-for-sale Securities, Gross Unrealized Gains | 8,195 | ' | 8,195 | ' | 17,227 | ' |
Available-for-sale Securities, Gross Unrealized Losses | 9,964 | ' | 9,964 | ' | 777 | ' |
Available-for-sale Securities, Fair Value | 318,922 | ' | 318,922 | ' | 282,262 | ' |
Held-to-maturity Securities, Debt Securities, Net Carrying Amount | 176,686 | ' | 176,686 | ' | 125,634 | ' |
Held-to-maturity Securities, Unrecognized Holding Gain | 2,461 | ' | 2,461 | ' | 5,435 | ' |
Held-to-maturity Securities, Unrecognized Holding Loss | 5,407 | ' | 5,407 | ' | 378 | ' |
Held-to-maturity Securities, Debt Securities, Fair Value | 173,740 | ' | 173,740 | ' | 130,691 | ' |
Unrealized Continuous Losses on Investments [Abstract] | ' | ' | ' | ' | ' | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 148,560 | ' | 148,560 | ' | 54,115 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | 8,662 | ' | 8,662 | ' | 443 | ' |
Number of Available-for-sale Securities In Continuous Loss Position Less Than 12 Months | 163 | ' | 163 | ' | 61 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 13,375 | ' | 13,375 | ' | 5,099 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses | 1,302 | ' | 1,302 | ' | 334 | ' |
Number of Available-for-sale Securities In Continuous Loss Position For 12 months or Greater | 15 | ' | 15 | ' | 2 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 161,935 | ' | 161,935 | ' | 59,214 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | 9,964 | ' | 9,964 | ' | 777 | ' |
Number of Available-for-sale Securities In Continuous Loss Position Aggregate | 178 | ' | 178 | ' | 63 | ' |
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 88,943 | ' | 88,943 | ' | 40,611 | ' |
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | 4,453 | ' | 4,453 | ' | 378 | ' |
Number of Held-to-maturity Securities In Continuous Loss Position Less Than 12 Months | 106 | ' | 106 | ' | 32 | ' |
Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 14,394 | ' | 14,394 | ' | 0 | ' |
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses | 954 | ' | 954 | ' | 0 | ' |
Number of Held-to-maturity Securities In Continuous Loss Position 12 Months or Greater | 17 | ' | 17 | ' | 0 | ' |
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value | 103,337 | ' | 103,337 | ' | 40,611 | ' |
Held-to-maturity Securities, Continuous Unrealized Loss Position, Aggregate Losses | 5,407 | ' | 5,407 | ' | 378 | ' |
Number of Held-to-maturity Securities In Continuous Loss Position Aggregate | 123 | ' | 123 | ' | 32 | ' |
Foreign Government Debt Securities [Member] | ' | ' | ' | ' | ' | ' |
Unrealized Gain (Loss) on Investments [Abstract] | ' | ' | ' | ' | ' | ' |
Available-for-sale Debt Securities, Amortized Cost Basis | 104 | ' | 104 | ' | 105 | ' |
Available-for-sale Securities, Gross Unrealized Gains | 27 | ' | 27 | ' | 36 | ' |
Available-for-sale Securities, Gross Unrealized Losses | 0 | ' | 0 | ' | 0 | ' |
Available-for-sale Securities, Fair Value | 131 | ' | 131 | ' | 141 | ' |
Corporate Debt Securities [Member] | ' | ' | ' | ' | ' | ' |
Unrealized Gain (Loss) on Investments [Abstract] | ' | ' | ' | ' | ' | ' |
Available-for-sale Debt Securities, Amortized Cost Basis | 187,120 | ' | 187,120 | ' | 195,755 | ' |
Available-for-sale Securities, Gross Unrealized Gains | 13,093 | ' | 13,093 | ' | 20,536 | ' |
Available-for-sale Securities, Gross Unrealized Losses | 1,442 | ' | 1,442 | ' | 286 | ' |
Available-for-sale Securities, Fair Value | 198,771 | ' | 198,771 | ' | 216,005 | ' |
Held-to-maturity Securities, Debt Securities, Net Carrying Amount | 37,744 | ' | 37,744 | ' | 32,742 | ' |
Held-to-maturity Securities, Unrecognized Holding Gain | 752 | ' | 752 | ' | 1,160 | ' |
Held-to-maturity Securities, Unrecognized Holding Loss | 313 | ' | 313 | ' | 0 | ' |
Held-to-maturity Securities, Debt Securities, Fair Value | 38,183 | ' | 38,183 | ' | 33,902 | ' |
Unrealized Continuous Losses on Investments [Abstract] | ' | ' | ' | ' | ' | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 39,735 | ' | 39,735 | ' | 22,316 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | 1,098 | ' | 1,098 | ' | 286 | ' |
Number of Available-for-sale Securities In Continuous Loss Position Less Than 12 Months | 25 | ' | 25 | ' | 16 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 2,434 | ' | 2,434 | ' | 0 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses | 344 | ' | 344 | ' | 0 | ' |
Number of Available-for-sale Securities In Continuous Loss Position For 12 months or Greater | 2 | ' | 2 | ' | 0 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 42,169 | ' | 42,169 | ' | 22,316 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | 1,442 | ' | 1,442 | ' | 286 | ' |
Number of Available-for-sale Securities In Continuous Loss Position Aggregate | 27 | ' | 27 | ' | 16 | ' |
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 7,390 | ' | 7,390 | ' | ' | ' |
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | 313 | ' | 313 | ' | ' | ' |
Number of Held-to-maturity Securities In Continuous Loss Position Less Than 12 Months | 6 | ' | 6 | ' | ' | ' |
Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 0 | ' | 0 | ' | ' | ' |
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses | 0 | ' | 0 | ' | ' | ' |
Number of Held-to-maturity Securities In Continuous Loss Position 12 Months or Greater | 0 | ' | 0 | ' | ' | ' |
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value | 7,390 | ' | 7,390 | ' | ' | ' |
Held-to-maturity Securities, Continuous Unrealized Loss Position, Aggregate Losses | 313 | ' | 313 | ' | ' | ' |
Number of Held-to-maturity Securities In Continuous Loss Position Aggregate | 6 | ' | 6 | ' | ' | ' |
Collateralized Mortgage Backed Securities [Member] | ' | ' | ' | ' | ' | ' |
Schedule of Fixed Maturities [Abstract] | ' | ' | ' | ' | ' | ' |
Available-for-sale Securities, Debt Maturities, without Single Maturity Date, Amortized Cost Basis | 4,100 | ' | 4,100 | ' | ' | ' |
Commercial Mortgage Backed Securities [Member] | ' | ' | ' | ' | ' | ' |
Unrealized Gain (Loss) on Investments [Abstract] | ' | ' | ' | ' | ' | ' |
Available-for-sale Debt Securities, Amortized Cost Basis | 318 | ' | 318 | ' | 481 | ' |
Available-for-sale Securities, Gross Unrealized Gains | 11 | ' | 11 | ' | 17 | ' |
Available-for-sale Securities, Gross Unrealized Losses | 0 | ' | 0 | ' | 2 | ' |
Available-for-sale Securities, Fair Value | 329 | ' | 329 | ' | 496 | ' |
Unrealized Continuous Losses on Investments [Abstract] | ' | ' | ' | ' | ' | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 4 | ' | 4 | ' | 94 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | 0 | ' | 0 | ' | 2 | ' |
Number of Available-for-sale Securities In Continuous Loss Position Less Than 12 Months | 1 | ' | 1 | ' | 1 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 46 | ' | 46 | ' | 0 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses | 2 | ' | 2 | ' | 0 | ' |
Number of Available-for-sale Securities In Continuous Loss Position For 12 months or Greater | 1 | ' | 1 | ' | 0 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 50 | ' | 50 | ' | 94 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | 2 | ' | 2 | ' | 2 | ' |
Number of Available-for-sale Securities In Continuous Loss Position Aggregate | 2 | ' | 2 | ' | 1 | ' |
Residential Mortgage Backed Securities [Member] | ' | ' | ' | ' | ' | ' |
Unrealized Gain (Loss) on Investments [Abstract] | ' | ' | ' | ' | ' | ' |
Available-for-sale Debt Securities, Amortized Cost Basis | 3,821 | ' | 3,821 | ' | 5,625 | ' |
Available-for-sale Securities, Gross Unrealized Gains | 297 | ' | 297 | ' | 469 | ' |
Available-for-sale Securities, Gross Unrealized Losses | 2 | ' | 2 | ' | 2 | ' |
Available-for-sale Securities, Fair Value | 4,116 | ' | 4,116 | ' | 6,092 | ' |
Unrealized Continuous Losses on Investments [Abstract] | ' | ' | ' | ' | ' | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | ' | ' | ' | ' | 0 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | ' | ' | ' | ' | 0 | ' |
Number of Available-for-sale Securities In Continuous Loss Position Less Than 12 Months | ' | ' | ' | ' | 0 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | ' | ' | ' | ' | 52 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses | ' | ' | ' | ' | 2 | ' |
Number of Available-for-sale Securities In Continuous Loss Position For 12 months or Greater | ' | ' | ' | ' | 1 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | ' | ' | ' | ' | 52 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | ' | ' | ' | ' | 2 | ' |
Number of Available-for-sale Securities In Continuous Loss Position Aggregate | ' | ' | ' | ' | 1 | ' |
Debt Securities [Member] | ' | ' | ' | ' | ' | ' |
Unrealized Gain (Loss) on Investments [Abstract] | ' | ' | ' | ' | ' | ' |
Total Fixed Maturity Securities, Amortized Cost | 808,466 | ' | 808,466 | ' | 746,744 | ' |
Total Fixed Maturity Securities, Gross Unrealized Gains | 29,308 | ' | 29,308 | ' | 52,982 | ' |
Total Fixed Maturity Securities, Gross Unrealized Losses | 17,280 | ' | 17,280 | ' | 1,467 | ' |
Total Fixed Maturity Securities, Fair Value | 820,494 | ' | 820,494 | ' | 798,259 | ' |
Unrealized Continuous Losses on Investments [Abstract] | ' | ' | ' | ' | ' | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 199,908 | ' | 199,908 | ' | 87,128 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | 9,912 | ' | 9,912 | ' | 753 | ' |
Number of Available-for-sale Securities In Continuous Loss Position Less Than 12 Months | 197 | ' | 197 | ' | 87 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 15,855 | ' | 15,855 | ' | 5,151 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses | 1,648 | ' | 1,648 | ' | 336 | ' |
Number of Available-for-sale Securities In Continuous Loss Position For 12 months or Greater | 18 | ' | 18 | ' | 3 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 215,763 | ' | 215,763 | ' | 92,279 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | 11,560 | ' | 11,560 | ' | 1,089 | ' |
Number of Available-for-sale Securities In Continuous Loss Position Aggregate | 215 | ' | 215 | ' | 90 | ' |
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 96,333 | ' | 96,333 | ' | 40,611 | ' |
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | 4,766 | ' | 4,766 | ' | 378 | ' |
Number of Held-to-maturity Securities In Continuous Loss Position Less Than 12 Months | 112 | ' | 112 | ' | 32 | ' |
Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 14,394 | ' | 14,394 | ' | 0 | ' |
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses | 954 | ' | 954 | ' | 0 | ' |
Number of Held-to-maturity Securities In Continuous Loss Position 12 Months or Greater | 17 | ' | 17 | ' | 0 | ' |
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value | 110,727 | ' | 110,727 | ' | 40,611 | ' |
Held-to-maturity Securities, Continuous Unrealized Loss Position, Aggregate Losses | 5,720 | ' | 5,720 | ' | 378 | ' |
Number of Held-to-maturity Securities In Continuous Loss Position Aggregate | 129 | ' | 129 | ' | 32 | ' |
Available-for-sale Securities, Gross Realized Gain (Loss) [Abstract] | ' | ' | ' | ' | ' | ' |
Available-for-sale Securities, Gross Realized Gains | 7 | 0 | 8 | 4 | ' | ' |
Available-for-sale Securities, Gross Realized Losses | 1 | 0 | 1 | 3 | ' | ' |
Stock Mutual Funds [Member] | ' | ' | ' | ' | ' | ' |
Unrealized Gain (Loss) on Investments [Abstract] | ' | ' | ' | ' | ' | ' |
Available-for-sale Equity Securities, Amortized Cost Basis | 10,463 | ' | 10,463 | ' | 10,463 | ' |
Available-for-sale Securities, Gross Unrealized Gains | 1,022 | ' | 1,022 | ' | 250 | ' |
Available-for-sale Securities, Gross Unrealized Losses | 0 | ' | 0 | ' | 28 | ' |
Available-for-sale Securities, Fair Value | 11,485 | ' | 11,485 | ' | 10,685 | ' |
Unrealized Continuous Losses on Investments [Abstract] | ' | ' | ' | ' | ' | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | ' | ' | ' | ' | 0 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | ' | ' | ' | ' | 0 | ' |
Number of Available-for-sale Securities In Continuous Loss Position Less Than 12 Months | ' | ' | ' | ' | 0 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | ' | ' | ' | ' | 972 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses | ' | ' | ' | ' | 28 | ' |
Number of Available-for-sale Securities In Continuous Loss Position For 12 months or Greater | ' | ' | ' | ' | 1 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | ' | ' | ' | ' | 972 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | ' | ' | ' | ' | 28 | ' |
Number of Available-for-sale Securities In Continuous Loss Position Aggregate | ' | ' | ' | ' | 1 | ' |
Bond Mutual Funds [Member] | ' | ' | ' | ' | ' | ' |
Unrealized Gain (Loss) on Investments [Abstract] | ' | ' | ' | ' | ' | ' |
Available-for-sale Equity Securities, Amortized Cost Basis | 41,504 | ' | 41,504 | ' | 41,504 | ' |
Available-for-sale Securities, Gross Unrealized Gains | 23 | ' | 23 | ' | 541 | ' |
Available-for-sale Securities, Gross Unrealized Losses | 672 | ' | 672 | ' | 129 | ' |
Available-for-sale Securities, Fair Value | 40,855 | ' | 40,855 | ' | 41,916 | ' |
Unrealized Continuous Losses on Investments [Abstract] | ' | ' | ' | ' | ' | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 30,904 | ' | 30,904 | ' | 3,335 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | 307 | ' | 307 | ' | 88 | ' |
Number of Available-for-sale Securities In Continuous Loss Position Less Than 12 Months | 4 | ' | 4 | ' | 1 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 6,058 | ' | 6,058 | ' | 2,959 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses | 365 | ' | 365 | ' | 41 | ' |
Number of Available-for-sale Securities In Continuous Loss Position For 12 months or Greater | 2 | ' | 2 | ' | 2 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 36,962 | ' | 36,962 | ' | 6,294 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | 672 | ' | 672 | ' | 129 | ' |
Number of Available-for-sale Securities In Continuous Loss Position Aggregate | 6 | ' | 6 | ' | 3 | ' |
Common Stock [Member] | ' | ' | ' | ' | ' | ' |
Unrealized Gain (Loss) on Investments [Abstract] | ' | ' | ' | ' | ' | ' |
Available-for-sale Equity Securities, Amortized Cost Basis | 17 | ' | 17 | ' | 17 | ' |
Available-for-sale Securities, Gross Unrealized Gains | 0 | ' | 0 | ' | 0 | ' |
Available-for-sale Securities, Gross Unrealized Losses | 3 | ' | 3 | ' | 2 | ' |
Available-for-sale Securities, Fair Value | 14 | ' | 14 | ' | 15 | ' |
Unrealized Continuous Losses on Investments [Abstract] | ' | ' | ' | ' | ' | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 0 | ' | 0 | ' | 15 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | 0 | ' | 0 | ' | 2 | ' |
Number of Available-for-sale Securities In Continuous Loss Position Less Than 12 Months | 0 | ' | 0 | ' | 1 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 13 | ' | 13 | ' | 0 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses | 3 | ' | 3 | ' | 0 | ' |
Number of Available-for-sale Securities In Continuous Loss Position For 12 months or Greater | 1 | ' | 1 | ' | 0 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 13 | ' | 13 | ' | 15 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | 3 | ' | 3 | ' | 2 | ' |
Number of Available-for-sale Securities In Continuous Loss Position Aggregate | 1 | ' | 1 | ' | 1 | ' |
Preferred Stock [Member] | ' | ' | ' | ' | ' | ' |
Unrealized Gain (Loss) on Investments [Abstract] | ' | ' | ' | ' | ' | ' |
Available-for-sale Equity Securities, Amortized Cost Basis | 408 | ' | 408 | ' | 760 | ' |
Available-for-sale Securities, Gross Unrealized Gains | 305 | ' | 305 | ' | 365 | ' |
Available-for-sale Securities, Gross Unrealized Losses | 0 | ' | 0 | ' | 0 | ' |
Available-for-sale Securities, Fair Value | 713 | ' | 713 | ' | 1,125 | ' |
Equity Securities [Member] | ' | ' | ' | ' | ' | ' |
Unrealized Gain (Loss) on Investments [Abstract] | ' | ' | ' | ' | ' | ' |
Available-for-sale Equity Securities, Amortized Cost Basis | 52,392 | ' | 52,392 | ' | 52,744 | ' |
Available-for-sale Securities, Gross Unrealized Gains | 1,350 | ' | 1,350 | ' | 1,156 | ' |
Available-for-sale Securities, Gross Unrealized Losses | 675 | ' | 675 | ' | 159 | ' |
Available-for-sale Securities, Fair Value | 53,067 | ' | 53,067 | ' | 53,741 | ' |
Unrealized Continuous Losses on Investments [Abstract] | ' | ' | ' | ' | ' | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 30,904 | ' | 30,904 | ' | 3,350 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | 307 | ' | 307 | ' | 90 | ' |
Number of Available-for-sale Securities In Continuous Loss Position Less Than 12 Months | 4 | ' | 4 | ' | 2 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 6,071 | ' | 6,071 | ' | 3,931 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses | 368 | ' | 368 | ' | 69 | ' |
Number of Available-for-sale Securities In Continuous Loss Position For 12 months or Greater | 3 | ' | 3 | ' | 3 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 36,975 | ' | 36,975 | ' | 7,281 | ' |
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | 675 | ' | 675 | ' | 159 | ' |
Number of Available-for-sale Securities In Continuous Loss Position Aggregate | 7 | ' | 7 | ' | 5 | ' |
Available-for-sale Securities, Gross Realized Gain (Loss) [Abstract] | ' | ' | ' | ' | ' | ' |
Available-for-sale Securities, Gross Realized Gains | 0 | 632 | 0 | 632 | ' | ' |
Available-for-sale Securities, Gross Realized Losses | $0 | $0 | $0 | $0 | ' | ' |
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] | ' | ' | ' | ' | ' | ' |
Schedule of Fixed Maturities [Abstract] | ' | ' | ' | ' | ' | ' |
Percent of residential mortgage backed to securities | 92.70% | ' | 92.70% | ' | ' | ' |