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Investments (Details) (USD $) | 3 Months Ended | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013 | Dec. 31, 2013 | Dec. 31, 2012
Investments Including Short Term And Cash And Cash Equivalents [Abstract] |  |  |  |  |  |
Fixed maturity securities | $ 911,888,000 |  | $ 911,888,000 |  | $ 832,952,000 |
Fixed maturity securities percent | 84.00% |  | 84.00% |  | 83.90% |
Equity securities | 55,643,000 |  | 55,643,000 |  | 47,259,000 |
Equity securities percent | 5.10% |  | 5.10% |  | 4.80% |
Mortgage loans | 641,000 |  | 641,000 |  | 671,000 |
Mortgage loans percent | 0.10% |  | 0.10% |  | 0.10% |
Policy loans | 52,575,000 |  | 52,575,000 |  | 48,868,000 |
Policy loans percent | 4.80% |  | 4.80% |  | 4.80% |
Real estate and other long-term investments | 8,310,000 |  | 8,310,000 |  | 8,485,000 |
Real estate and other long-term investments percent | 0.80% |  | 0.80% |  | 0.90% |
Cash and cash equivalents | 56,986,000 | 41,687,000 | 56,986,000 | 41,687,000 | 54,593,000 | 56,299,000
Cash and cash equivalents percent | 5.20% |  | 5.20% |  | 5.50% |
Total cash, cash equivalents and investments | 1,086,043,000 |  | 1,086,043,000 |  | 992,828,000 |
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 | 647,257,000 |  | 647,257,000 |  | 595,944,000 |
Available-for-sale Equity Securities, Amortized Cost Basis | 53,906,000 |  | 53,906,000 |  | 45,883,000 |
Available-for-sale Securities, Fair Value | 737,234,000 |  | 737,234,000 |  | 652,515,000 |
Available-for-sale Securities, Debt Securities, Amortized Cost Basis, Total | 647,257,000 |  | 647,257,000 |  | 595,944,000 |
Available-for-sale Debt Securities, Gross Unrealized Gains, Total |  |  | 37,177,000 |  | 22,390,000 |
Available-for-sale Debt Securities, Gross Unrealized Losses, Total |  |  | 2,843,000 |  | 13,078,000 |
Available-for-sale Debt Securities, Fair Value | 681,591,000 |  | 681,591,000 |  | 605,256,000 |
Held-to-maturity Securities, Debt Securities, Net Carrying Amount | 230,297,000 |  | 230,297,000 |  | 227,696,000 |
Held-to-maturity Securities, Unrecognized Holding Gain |  |  | 7,208,000 |  | 2,601,000 |
Held-to-maturity Securities, Unrecognized Holding Loss |  |  | 1,340,000 |  | 6,764,000 |
Held-to-maturity Securities, Fair Value | 236,165,000 |  | 236,165,000 |  | 223,533,000 |
Total Fixed Maturity Securities, Amortized Cost | 877,554,000 |  | 877,554,000 |  |  |
Total Fixed Maturity Securities, Fair Value | 917,756,000 |  | 917,756,000 |  |  |
Unrealized Continuous Losses on Investments [Abstract] |  |  |  |  |  |
Number of Available-for-sale Securities In Continuous Loss Position Aggregate | 133 |  | 133 |  | 262 |
Debt Securities In Continuous Loss Less Than 12 Months Fair Value | 85,935,000 |  | 85,935,000 |  | 341,533,000 |
Debt Securities Continuous Loss Position Less Than 12 Months Unrealized Losses |  |  | 1,106,000 |  | 16,737,000 |
Number of Debt Securities In Continuous Loss Less Than 12 Months | 94 |  | 94 |  | 366 |
Debt Securities In Continuous Loss Position 12 Months Or Longer, Fair Value | 107,800,000 |  | 107,800,000 |  | 32,938,000 |
Debt Securities In Continuous Loss Position 12 Months Or Longer, Unrealized Losses |  |  | 3,077,000 |  | 3,105,000 |
Number of Debt Securities In Continuous Loss Position 12 Months or Longer | 101 |  | 101 |  | 36 |
Debt Securities In Continuous Loss Position, Aggregate Fair Value | 193,735,000 |  | 193,735,000 |  | 374,471,000 |
Debt Securities In Continuous Loss Position, Aggregate Unrealized Losses |  |  | 4,183,000 |  | 19,842,000 |
Number of Debt Securities In Continuous Loss Position, Aggregate | 195 |  | 195 |  | 402 |
Available-for-sale Securities, Gross Realized Gain (Loss) [Abstract] |  |  |  |  |  |
Proceeds from Sale of Available-for-sale Securities, Fixed Maturities | 100,000 | 259,000 | 680,000 | 317,000 |  |
Proceeds from Sale of Available-for-sale Securities, Equity | 3,924,000 | 0 | 15,029,000 | 0 |  |
Schedule of Fixed Maturities [Abstract] |  |  |  |  |  |
Available-for-sale Securities, Debt Maturities, Due in One Year or Less, Amortized Cost Basis | 35,959,000 |  | 35,959,000 |  |  |
Available-for-sale Securities, Debt Maturities, Due in One Year or Less, Fair Value | 36,529,000 |  | 36,529,000 |  |  |
Available-for-sale Securities, Debt Maturities, Due After One Year Through Five Years, Amortized Cost Basis | 112,116,000 |  | 112,116,000 |  |  |
Available-for-sale Securities, Debt Maturities, Due After One Year Through Five Years, Fair Value | 118,976,000 |  | 118,976,000 |  |  |
Available-for-sale Securities, Debt Maturities, Due After Five Years Through Ten Years, Amortized Cost Basis | 92,456,000 |  | 92,456,000 |  |  |
Available-for-sale Securities, Debt Maturities, Due After Five Years Through Ten Years, Fair Value | 97,519,000 |  | 97,519,000 |  |  |
Available-for-sale Securities, Debt Maturities, Due After Ten Years, Amortized Cost Basis | 406,726,000 |  | 406,726,000 |  |  |
Available-for-sale Securities, Debt Maturities, Due After Ten Years, Fair Value | 428,567,000 |  | 428,567,000 |  |  |
Held-to-maturity Securities, Debt Maturities, Due in One Year or Less, Amortized Cost Basis | 18,069,000 |  | 18,069,000 |  |  |
Held-to-maturity Securities, Debt Maturities, Due in One Year or Less, Fair Value | 18,198,000 |  | 18,198,000 |  |  |
Held-to-maturity Securities, Debt Maturities, Due After One Year Through Five Years, Amortized Cost Basis | 24,252,000 |  | 24,252,000 |  |  |
Held-to-maturity Securities, Debt Maturities, Due After One Year Through Five Years, Fair Value | 24,927,000 |  | 24,927,000 |  |  |
Held-to-maturity Securities, Debt Maturities, Due After Five Years Through Ten Years, Amortized Cost Basis | 56,641,000 |  | 56,641,000 |  |  |
Held-to-maturity Securities, Debt Maturities, Due After Five Years Through Ten Years, Fair Value | 58,762,000 |  | 58,762,000 |  |  |
Held-to-maturity Securities, Debt Maturities, Due After Ten Years, Amortized Cost Basis | 131,335,000 |  | 131,335,000 |  |  |
Held-to-maturity Securities, Debt Maturities, Due After Ten Years, Fair Value | 134,278,000 |  | 134,278,000 |  |  |
Sale of bonds, number of securities sold at a loss | 1 |  |  | 0 |  |
Sale of bonds, number of held-to-maturity bonds sold | 0 |  |  | 0 |  |
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net | 300,000 | 0 | 300,000 | 0 |  |
US Treasury Securities [Member] |  |  |  |  |  |
Unrealized Gain (Loss) on Investments [Abstract] |  |  |  |  |  |
Available-for-sale Debt Securities, Amortized Cost Basis | 10,071,000 |  | 10,071,000 |  | 10,115,000 |
Available-for-sale Securities, Gross Unrealized Gains |  |  | 2,656,000 |  | 2,348,000 |
Available-for-sale Securities, Gross Unrealized Losses |  |  | 0 |  | 0 |
Available-for-sale Securities, Fair Value | 12,727,000 |  | 12,727,000 |  | 12,463,000 |
US Government Agencies Debt Securities [Member] |  |  |  |  |  |
Unrealized Gain (Loss) on Investments [Abstract] |  |  |  |  |  |
Available-for-sale Debt Securities, Amortized Cost Basis | 38,539,000 |  | 38,539,000 |  | 53,587,000 |
Available-for-sale Securities, Gross Unrealized Gains |  |  | 1,817,000 |  | 1,209,000 |
Available-for-sale Securities, Gross Unrealized Losses |  |  | 1,000 |  | 228,000 |
Available-for-sale Securities, Fair Value | 40,355,000 |  | 40,355,000 |  | 54,568,000 |
Held-to-maturity Securities, Debt Securities, Net Carrying Amount | 5,783,000 |  | 5,783,000 |  | 8,877,000 |
Held-to-maturity Securities, Unrecognized Holding Gain |  |  | 212,000 |  | 197,000 |
Held-to-maturity Securities, Unrecognized Holding Loss |  |  | 0 |  | 3,000 |
Held-to-maturity Securities, Fair Value | 5,995,000 |  | 5,995,000 |  | 9,071,000 |
Unrealized Continuous Losses on Investments [Abstract] |  |  |  |  |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 159,000 |  | 159,000 |  | 14,032,000 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses |  |  | 1,000 |  | 228,000 |
Number of Available-for-sale Securities In Continuous Loss Position Less Than 12 Months | 1 |  | 1 |  | 12 |
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 |
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 | 159,000 |  | 159,000 |  | 14,032,000 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses |  |  | 1,000 |  | 228,000 |
Number of Available-for-sale Securities In Continuous Loss Position Aggregate | 1 |  | 1 |  | 12 |
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value |  |  |  |  | 2,997,000 |
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses |  |  |  |  | 3,000 |
Number of Held-to-maturity Securities In Continuous Loss Position Less Than 12 Months |  |  |  |  | 1 |
Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value |  |  |  |  | 0 |
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses |  |  |  |  | 0 |
Number of Held-to-maturity Securities In Continuous Loss Position 12 Months or Greater |  |  |  |  | 0 |
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value |  |  |  |  | 2,997,000 |
Held-to-maturity Securities, Continuous Unrealized Loss Position, Aggregate Losses |  |  |  |  | 3,000 |
Number of Held-to-maturity Securities In Continuous Loss Position Aggregate |  |  |  |  | 1 |
US States and Political Subdivisions Debt Securities [Member] |  |  |  |  |  |
Unrealized Gain (Loss) on Investments [Abstract] |  |  |  |  |  |
Available-for-sale Debt Securities, Amortized Cost Basis | 384,239,000 |  | 384,239,000 |  | 341,673,000 |
Available-for-sale Securities, Gross Unrealized Gains |  |  | 15,344,000 |  | 6,242,000 |
Available-for-sale Securities, Gross Unrealized Losses |  |  | 2,422,000 |  | 11,449,000 |
Available-for-sale Securities, Fair Value | 397,161,000 |  | 397,161,000 |  | 336,466,000 |
Held-to-maturity Securities, Debt Securities, Net Carrying Amount | 189,125,000 |  | 189,125,000 |  | 181,246,000 |
Held-to-maturity Securities, Unrecognized Holding Gain |  |  | 6,072,000 |  | 1,633,000 |
Held-to-maturity Securities, Unrecognized Holding Loss |  |  | 1,098,000 |  | 6,412,000 |
Held-to-maturity Securities, Fair Value | 194,099,000 |  | 194,099,000 |  | 176,467,000 |
Unrealized Continuous Losses on Investments [Abstract] |  |  |  |  |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 46,146,000 |  | 46,146,000 |  | 183,280,000 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses |  |  | 508,000 |  | 9,872,000 |
Number of Available-for-sale Securities In Continuous Loss Position Less Than 12 Months | 50 |  | 50 |  | 203 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 58,380,000 |  | 58,380,000 |  | 15,673,000 |
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses |  |  | 1,914,000 |  | 1,577,000 |
Number of Available-for-sale Securities In Continuous Loss Position For 12 months or Greater | 50 |  | 50 |  | 16 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 104,526,000 |  | 104,526,000 |  | 198,953,000 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses |  |  | 2,422,000 |  | 11,449,000 |
Number of Available-for-sale Securities In Continuous Loss Position Aggregate | 100 |  | 100 |  | 219 |
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 14,143,000 |  | 14,143,000 |  | 100,153,000 |
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses |  |  | 93,000 |  | 5,236,000 |
Number of Held-to-maturity Securities In Continuous Loss Position Less Than 12 Months | 13 |  | 13 |  | 118 |
Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 43,699,000 |  | 43,699,000 |  | 14,797,000 |
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses |  |  | 1,005,000 |  | 1,176,000 |
Number of Held-to-maturity Securities In Continuous Loss Position 12 Months or Greater | 45 |  | 45 |  | 17 |
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value | 57,842,000 |  | 57,842,000 |  | 114,950,000 |
Held-to-maturity Securities, Continuous Unrealized Loss Position, Aggregate Losses |  |  | 1,098,000 |  | 6,412,000 |
Number of Held-to-maturity Securities In Continuous Loss Position Aggregate | 58 |  | 58 |  | 135 |
Foreign Government Debt Securities [Member] |  |  |  |  |  |
Unrealized Gain (Loss) on Investments [Abstract] |  |  |  |  |  |
Available-for-sale Debt Securities, Amortized Cost Basis | 104,000 |  | 104,000 |  | 104,000 |
Available-for-sale Securities, Gross Unrealized Gains |  |  | 29,000 |  | 23,000 |
Available-for-sale Securities, Gross Unrealized Losses |  |  | 0 |  | 0 |
Available-for-sale Securities, Fair Value | 133,000 |  | 133,000 |  | 127,000 |
Corporate Debt Securities [Member] |  |  |  |  |  |
Unrealized Gain (Loss) on Investments [Abstract] |  |  |  |  |  |
Available-for-sale Debt Securities, Amortized Cost Basis | 210,715,000 |  | 210,715,000 |  | 186,671,000 |
Available-for-sale Securities, Gross Unrealized Gains |  |  | 17,063,000 |  | 12,289,000 |
Available-for-sale Securities, Gross Unrealized Losses |  |  | 417,000 |  | 1,399,000 |
Available-for-sale Securities, Fair Value | 227,361,000 |  | 227,361,000 |  | 197,561,000 |
Held-to-maturity Securities, Debt Securities, Net Carrying Amount | 35,389,000 |  | 35,389,000 |  | 37,573,000 |
Held-to-maturity Securities, Unrecognized Holding Gain |  |  | 924,000 |  | 771,000 |
Held-to-maturity Securities, Unrecognized Holding Loss |  |  | 242,000 |  | 349,000 |
Held-to-maturity Securities, Fair Value | 36,071,000 |  | 36,071,000 |  | 37,995,000 |
Unrealized Continuous Losses on Investments [Abstract] |  |  |  |  |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 22,950,000 |  | 22,950,000 |  | 35,789,000 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses |  |  | 324,000 |  | 1,048,000 |
Number of Available-for-sale Securities In Continuous Loss Position Less Than 12 Months | 21 |  | 21 |  | 25 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 2,681,000 |  | 2,681,000 |  | 2,426,000 |
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses |  |  | 93,000 |  | 351,000 |
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 | 25,631,000 |  | 25,631,000 |  | 38,215,000 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses |  |  | 417,000 |  | 1,399,000 |
Number of Available-for-sale Securities In Continuous Loss Position Aggregate | 23 |  | 23 |  | 27 |
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 2,368,000 |  | 2,368,000 |  | 5,225,000 |
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses |  |  | 178,000 |  | 349,000 |
Number of Held-to-maturity Securities In Continuous Loss Position Less Than 12 Months | 2 |  | 2 |  | 4 |
Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 2,958,000 |  | 2,958,000 |  | 0 |
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses |  |  | 64,000 |  | 0 |
Number of Held-to-maturity Securities In Continuous Loss Position 12 Months or Greater | 2 |  | 2 |  | 0 |
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value | 5,326,000 |  | 5,326,000 |  | 5,225,000 |
Held-to-maturity Securities, Continuous Unrealized Loss Position, Aggregate Losses |  |  | 242,000 |  | 349,000 |
Number of Held-to-maturity Securities In Continuous Loss Position Aggregate | 4 |  | 4 |  | 4 |
Commercial Mortgage Backed Securities [Member] |  |  |  |  |  |
Unrealized Gain (Loss) on Investments [Abstract] |  |  |  |  |  |
Available-for-sale Debt Securities, Amortized Cost Basis | 243,000 |  | 243,000 |  | 300,000 |
Available-for-sale Securities, Gross Unrealized Gains |  |  | 8,000 |  | 9,000 |
Available-for-sale Securities, Gross Unrealized Losses |  |  | 0 |  | 0 |
Available-for-sale Securities, Fair Value | 251,000 |  | 251,000 |  | 309,000 |
Residential Mortgage Backed Securities [Member] |  |  |  |  |  |
Unrealized Gain (Loss) on Investments [Abstract] |  |  |  |  |  |
Available-for-sale Debt Securities, Amortized Cost Basis | 3,346,000 |  | 3,346,000 |  | 3,494,000 |
Available-for-sale Securities, Gross Unrealized Gains |  |  | 260,000 |  | 270,000 |
Available-for-sale Securities, Gross Unrealized Losses |  |  | 3,000 |  | 2,000 |
Available-for-sale Securities, Fair Value | 3,603,000 |  | 3,603,000 |  | 3,762,000 |
Unrealized Continuous Losses on Investments [Abstract] |  |  |  |  |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 169,000 |  | 169,000 |  | 57,000 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses |  |  | 2,000 |  | 1,000 |
Number of Available-for-sale Securities In Continuous Loss Position Less Than 12 Months | 7 |  | 7 |  | 3 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 82,000 |  | 82,000 |  | 42,000 |
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses |  |  | 1,000 |  | 1,000 |
Number of Available-for-sale Securities In Continuous Loss Position For 12 months or Greater | 2 |  | 2 |  | 1 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 251,000 |  | 251,000 |  | 99,000 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses |  |  | 3,000 |  | 2,000 |
Number of Available-for-sale Securities In Continuous Loss Position Aggregate | 9 |  | 9 |  | 4 |
Debt Securities [Member] |  |  |  |  |  |
Unrealized Gain (Loss) on Investments [Abstract] |  |  |  |  |  |
Total Fixed Maturity Securities, Amortized Cost | 877,554,000 |  | 877,554,000 |  | 823,640,000 |
Total Fixed Maturity Securities, Gross Unrealized Gains |  |  | 44,385,000 |  | 24,991,000 |
Total Fixed Maturity Securities, Gross Unrealized Losses |  |  | 4,183,000 |  | 19,842,000 |
Total Fixed Maturity Securities, Fair Value | 917,756,000 |  | 917,756,000 |  | 828,789,000 |
Unrealized Continuous Losses on Investments [Abstract] |  |  |  |  |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 69,424,000 |  | 69,424,000 |  | 233,158,000 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses |  |  | 835,000 |  | 11,149,000 |
Number of Available-for-sale Securities In Continuous Loss Position Less Than 12 Months | 79 |  | 79 |  | 243 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 61,143,000 |  | 61,143,000 |  | 18,141,000 |
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses |  |  | 2,008,000 |  | 1,929,000 |
Number of Available-for-sale Securities In Continuous Loss Position For 12 months or Greater | 54 |  | 54 |  | 19 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 130,567,000 |  | 130,567,000 |  | 251,299,000 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses |  |  | 2,843,000 |  | 13,078,000 |
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 16,511,000 |  | 16,511,000 |  | 108,375,000 |
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses |  |  | 271,000 |  | 5,588,000 |
Number of Held-to-maturity Securities In Continuous Loss Position Less Than 12 Months | 15 |  | 15 |  | 123 |
Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 46,657,000 |  | 46,657,000 |  | 14,797,000 |
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses |  |  | 1,069,000 |  | 1,176,000 |
Number of Held-to-maturity Securities In Continuous Loss Position 12 Months or Greater | 47 |  | 47 |  | 17 |
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value | 63,168,000 |  | 63,168,000 |  | 123,172,000 |
Held-to-maturity Securities, Continuous Unrealized Loss Position, Aggregate Losses |  |  | 1,340,000 |  | 6,764,000 |
Number of Held-to-maturity Securities In Continuous Loss Position Aggregate | 62 |  | 62 |  | 140 |
Available-for-sale Securities, Gross Realized Gain (Loss) [Abstract] |  |  |  |  |  |
Available-for-sale Securities, Gross Realized Gains | 5,000 | 7,000 | 26,000 | 8,000 |  |
Available-for-sale Securities, Gross Realized Losses | 0 | 1,000 | 0 | 1,000 |  |
Stock Mutual Funds [Member] |  |  |  |  |  |
Unrealized Gain (Loss) on Investments [Abstract] |  |  |  |  |  |
Available-for-sale Equity Securities, Amortized Cost Basis | 15,738,000 |  | 15,738,000 |  | 10,463,000 |
Available-for-sale Securities, Gross Unrealized Gains |  |  | 1,801,000 |  | 1,506,000 |
Available-for-sale Securities, Gross Unrealized Losses |  |  | 30,000 |  | 0 |
Available-for-sale Securities, Fair Value | 17,509,000 |  | 17,509,000 |  | 11,969,000 |
Unrealized Continuous Losses on Investments [Abstract] |  |  |  |  |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 1,970,000 |  | 1,970,000 |  |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses |  |  | 30,000 |  |  |
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year | 2 |  | 2 |  |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 0 |  | 0 |  |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses |  |  | 0 |  |  |
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year | 0 |  | 0 |  |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 1,970,000 |  | 1,970,000 |  |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses |  |  | 30,000 |  |  |
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions | 2 |  | 2 |  |  |
Bond Mutual Funds [Member] |  |  |  |  |  |
Unrealized Gain (Loss) on Investments [Abstract] |  |  |  |  |  |
Available-for-sale Equity Securities, Amortized Cost Basis | 35,704,000 |  | 35,704,000 |  | 35,080,000 |
Available-for-sale Securities, Gross Unrealized Gains |  |  | 0 |  | 0 |
Available-for-sale Securities, Gross Unrealized Losses |  |  | 280,000 |  | 417,000 |
Available-for-sale Securities, Fair Value | 35,424,000 |  | 35,424,000 |  | 34,663,000 |
Unrealized Continuous Losses on Investments [Abstract] |  |  |  |  |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 15,720,000 |  | 15,720,000 |  | 34,663,000 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses |  |  | 280,000 |  | 417,000 |
Number of Available-for-sale Securities In Continuous Loss Position Less Than 12 Months | 2 |  | 2 |  | 7 |
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 |
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 | 15,720,000 |  | 15,720,000 |  | 34,663,000 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses |  |  | 280,000 |  | 417,000 |
Number of Available-for-sale Securities In Continuous Loss Position Aggregate | 2 |  | 2 |  | 7 |
Common Stock [Member] |  |  |  |  |  |
Unrealized Gain (Loss) on Investments [Abstract] |  |  |  |  |  |
Available-for-sale Equity Securities, Amortized Cost Basis | 723,000 |  | 723,000 |  | 17,000 |
Available-for-sale Securities, Gross Unrealized Gains |  |  | 21,000 |  | 0 |
Available-for-sale Securities, Gross Unrealized Losses |  |  | 11,000 |  | 5,000 |
Available-for-sale Securities, Fair Value | 733,000 |  | 733,000 |  | 12,000 |
Unrealized Continuous Losses on Investments [Abstract] |  |  |  |  |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 0 |  | 0 |  | 12,000 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses |  |  | 0 |  | 5,000 |
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 | 6,000 |  | 6,000 |  | 0 |
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses |  |  | 11,000 |  | 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 | 6,000 |  | 6,000 |  | 12,000 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses |  |  | 11,000 |  | 5,000 |
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 | 1,741,000 |  | 1,741,000 |  | 323,000 |
Available-for-sale Securities, Gross Unrealized Gains |  |  | 236,000 |  | 292,000 |
Available-for-sale Securities, Gross Unrealized Losses |  |  | 0 |  | 0 |
Available-for-sale Securities, Fair Value | 1,977,000 |  | 1,977,000 |  | 615,000 |
Unrealized Continuous Losses on Investments [Abstract] |  |  |  |  |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 0 |  | 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 |  | 0 |  |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 0 |  | 0 |  |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses |  |  | 0 |  |  |
Number of Available-for-sale Securities In Continuous Loss Position For 12 months or Greater | 0 |  | 0 |  |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 0 |  | 0 |  |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses |  |  | 0 |  |  |
Number of Available-for-sale Securities In Continuous Loss Position Aggregate | 0 |  | 0 |  |  |
Equity Securities [Member] |  |  |  |  |  |
Unrealized Gain (Loss) on Investments [Abstract] |  |  |  |  |  |
Available-for-sale Equity Securities, Amortized Cost Basis | 53,906,000 |  | 53,906,000 |  | 45,883,000 |
Available-for-sale Securities, Gross Unrealized Gains |  |  | 2,058,000 |  | 1,798,000 |
Available-for-sale Securities, Gross Unrealized Losses |  |  | 321,000 |  | 422,000 |
Available-for-sale Securities, Fair Value | 55,643,000 |  | 55,643,000 |  | 47,259,000 |
Unrealized Continuous Losses on Investments [Abstract] |  |  |  |  |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 17,690,000 |  | 17,690,000 |  | 34,675,000 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses |  |  | 310,000 |  | 422,000 |
Number of Available-for-sale Securities In Continuous Loss Position Less Than 12 Months | 4 |  | 4 |  | 8 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 6,000 |  | 6,000 |  | 0 |
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses |  |  | 11,000 |  | 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 | 17,696,000 |  | 17,696,000 |  | 34,675,000 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses |  |  | 321,000 |  | 422,000 |
Number of Available-for-sale Securities In Continuous Loss Position Aggregate | 5 |  | 5 |  | 8 |
Available-for-sale Securities, Gross Realized Gain (Loss) [Abstract] |  |  |  |  |  |
Available-for-sale Securities, Gross Realized Gains | 55,000 | 0 | 118,000 | 0 |  |
Available-for-sale Securities, Gross Realized Losses | $ 0 | $ 0 | $ 169,000 | $ 0 |  |

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- Definition Amount of held-to-maturity debt securities at fair value maturing after the tenth fiscal year following the latest fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 3 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62586-112803 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (f)(4) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563 + Details
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- Definition Carrying amount of debt securities accounted for as held-to-maturity, net of adjustments including, but not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized, and fair value hedge accounting adjustments, maturing after the tenth fiscal year following the latest fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 3 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62586-112803 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (f)(4) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563 + Details
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- Definition Amount of held-to-maturity debt securities at fair value maturing in the next fiscal year following the latest fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62586-112803 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (f)(1) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563 + Details
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- Definition Carrying amount of debt securities accounted for as held-to-maturity, net of adjustments including, but not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized, and fair value hedge accounting adjustments, maturing in the next fiscal year following the latest fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62586-112803 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (f)(1) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563 + Details
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- Definition Fair value of investments in debt securities classified as held-to-maturity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563 + Details
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- Definition Amount of unrecognized gain before loss on investments in held-to-maturity securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563 + Details
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- Definition Amount of unrecognized loss before gain on investments in held-to-maturity securities. Excludes write-down for other than temporary impairment (OTTI). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563 + Details
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- Definition Amount before allowance of loans made to policy and contract holders using their life insurance contracts' cash value or separate accounts as collateral. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums over and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(a)(7)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.1(e)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Subparagraph e -Article 7 + Details
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- Definition Total debt and equity financial instruments including: (1) securities held-to-maturity and (2) securities available-for-sale that will be held for the long-term. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26626-111562 + Details
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- Definition The balance represents the amount of loans that are secured by real estate mortgages, offset by the reserve to cover probable credit losses on the loan portfolio. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.1(c)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Subparagraph c -Article 7 + Details
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- Definition The amount of other than temporary impairment (OTTI) losses on equity securities, OTTI related to credit losses on debt securities, and OTTI losses on debt securities when the entity intends to sell the securities or it is more likely than not that the entity will be required to sell the securities before recovery of its amortized cost basis. Additionally, this item includes OTTI losses recognized during the period on investments accounted for under the cost method of accounting. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 8B -URI http://asc.fasb.org/extlink&oid=27724398&loc=SL6284393-111563 + Details
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- Definition The cash inflow associated with the sale of debt securities classified as available-for-sale securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26853-111562 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585 + Details
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- Definition The cash inflow associated with the sale of equity securities classified as available-for-sale securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26853-111562 + Details
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