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 | | |