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Investments (Tables) | 9 Months Ended
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Sep. 30, 2013
Investments [Line Items] |
Schedule of Held-to-maturity Securities |
September 30, 2013 |  |  |  |  |  |  |  |  |  |  |  |
($ in thousands) |  | Amortized Cost |  | Net Unrealized Gains (Losses) |  | Carrying Value |  | Unrecognized Holding Gains |  | Unrecognized Holding Losses |  | Fair Value
Foreign government |  | $ | 5,292 |  |  | 151 |  |  | 5,443 |  |  | 122 |  |  | — |  |  | 5,565 |
Obligations of state and political subdivisions |  | 372,281 |  |  | 4,065 |  |  | 376,346 |  |  | 19,297 |  |  | — |  |  | 395,643 |
Corporate securities |  | 29,228 |  |  | (466 | ) |  | 28,762 |  |  | 3,015 |  |  | — |  |  | 31,777 |
Asset-backed securities (“ABS”) |  | 5,890 |  |  | (755 | ) |  | 5,135 |  |  | 776 |  |  | — |  |  | 5,911 |
Commercial mortgage-backed securities (“CMBS”) |  | 7,241 |  |  | (965 | ) |  | 6,276 |  |  | 3,357 |  |  | — |  |  | 9,633 |
Total HTM fixed maturity securities |  | $ | 419,932 |  |  | 2,030 |  |  | 421,962 |  |  | 26,567 |  |  | — |  |  | 448,529 |
December 31, 2012 |  |  |  |  |  |  |  |  |  |  |  |
($ in thousands) |  | Amortized Cost |  | Net Unrealized Gains (Losses) |  | Carrying Value |  | Unrecognized Holding Gains |  | Unrecognized Holding Losses |  | Fair Value
Foreign government |  | $ | 5,292 |  |  | 212 |  |  | 5,504 |  |  | 367 |  |  | — |  |  | 5,871 |
Obligations of state and political subdivisions |  | 491,180 |  |  | 6,769 |  |  | 497,949 |  |  | 28,996 |  |  | (23 | ) |  | 526,922 |
Corporate securities |  | 38,285 |  |  | (812 | ) |  | 37,473 |  |  | 4,648 |  |  | — |  |  | 42,121 |
ABS |  | 6,980 |  |  | (1,052 | ) |  | 5,928 |  |  | 1,170 |  |  | — |  |  | 7,098 |
CMBS |  | 8,406 |  |  | (1,191 | ) |  | 7,215 |  |  | 5,434 |  |  | — |  |  | 12,649 |
Total HTM fixed maturity securities |  | $ | 550,143 |  |  | 3,926 |  |  | 554,069 |  |  | 40,615 |  |  | (23 | ) |  | 594,661 |
Schedule Of Available For Sale Securities |
September 30, 2013 |  |  |  |  |  |  |  |
($ in thousands) |  | Cost/ Amortized Cost |  | Unrealized Gains |  | Unrealized Losses |  | Fair Value
U.S. government and government agencies |  | $ | 169,163 |  |  | 11,953 |  |  | (330 | ) |  | 180,786 |
Foreign government |  | 28,797 |  |  | 996 |  |  | (84 | ) |  | 29,709 |
Obligations of states and political subdivisions |  | 918,403 |  |  | 27,705 |  |  | (16,610 | ) |  | 929,498 |
Corporate securities |  | 1,629,698 |  |  | 47,932 |  |  | (14,479 | ) |  | 1,663,151 |
ABS |  | 150,179 |  |  | 1,063 |  |  | (476 | ) |  | 150,766 |
CMBS 1 |  | 152,464 |  |  | 2,747 |  |  | (3,263 | ) |  | 151,948 |
Residential mortgage-backed securities (“RMBS”)2 |  | 525,047 |  |  | 8,932 |  |  | (6,405 | ) |  | 527,574 |
AFS fixed maturity securities |  | 3,573,751 |  |  | 101,328 |  |  | (41,647 | ) |  | 3,633,432 |
AFS equity securities |  | 158,323 |  |  | 24,061 |  |  | (1,878 | ) |  | 180,506 |
Total AFS securities |  | $ | 3,732,074 |  |  | 125,389 |  |  | (43,525 | ) |  | 3,813,938 |
December 31, 2012 |  |  |  |  |  |  |  |
($ in thousands) |  | Cost/ Amortized Cost |  | Unrealized Gains |  | Unrealized Losses |  | Fair Value
U.S. government and government agencies |  | $ | 241,874 |  |  | 17,219 |  |  | (1 | ) |  | 259,092 |
Foreign government |  | 28,813 |  |  | 1,540 |  |  | (124 | ) |  | 30,229 |
Obligations of states and political subdivisions |  | 773,953 |  |  | 44,398 |  |  | (327 | ) |  | 818,024 |
Corporate securities |  | 1,368,954 |  |  | 81,696 |  |  | (402 | ) |  | 1,450,248 |
ABS |  | 126,330 |  |  | 2,319 |  |  | (9 | ) |  | 128,640 |
CMBS 1 |  | 133,763 |  |  | 4,572 |  |  | (1,216 | ) |  | 137,119 |
RMBS 2 |  | 456,996 |  |  | 15,961 |  |  | (296 | ) |  | 472,661 |
AFS fixed maturity securities |  | 3,130,683 |  |  | 167,705 |  |  | (2,375 | ) |  | 3,296,013 |
AFS equity securities |  | 132,441 |  |  | 19,400 |  |  | (459 | ) |  | 151,382 |
Total AFS securities |  | $ | 3,263,124 |  |  | 187,105 |  |  | (2,834 | ) |  | 3,447,395 |
1 CMBS includes government guaranteed agency securities with a fair value of $35.5 million at September 30, 2013 and $48.9 million at December 31, 2012. 2 RMBS includes government guaranteed agency securities with a fair value of $61.4 million at September 30, 2013 and $91.0 million at December 31, 2012.
Schedule of Fair Value and Gross Pre-Tax Net Unrealized/Unrecognized Loss of Securities by Length of Time |
September 30, 2013 |  | Less than 12 months |  | 12 months or longer
($ in thousands) |  | Fair Value |  | Unrealized Losses 1 |  | Fair Value |  | Unrealized Losses 1
AFS securities |  |  |  |  |  |  |  |  |  |  |  |
U.S. government and government agencies |  | $ | 13,173 |  |  | (327 | ) |  | 510 |  |  | (3 | )
Foreign government |  | 1,056 |  |  | (12 | ) |  | 2,925 |  |  | (72 | )
Obligations of states and political subdivisions |  | 417,866 |  |  | (16,610 | ) |  | — |  |  | — |
Corporate securities |  | 422,816 |  |  | (14,200 | ) |  | 3,837 |  |  | (279 | )
ABS |  | 87,786 |  |  | (471 | ) |  | 302 |  |  | (5 | )
CMBS |  | 69,322 |  |  | (2,771 | ) |  | 2,030 |  |  | (492 | )
RMBS |  | 202,428 |  |  | (6,231 | ) |  | 1,579 |  |  | (174 | )
Total fixed maturity securities |  | 1,214,447 |  |  | (40,622 | ) |  | 11,183 |  |  | (1,025 | )
Equity securities |  | 35,275 |  |  | (1,878 | ) |  | — |  |  | — |
Subtotal |  | $ | 1,249,722 |  |  | (42,500 | ) |  | 11,183 |  |  | (1,025 | )
|  | Less than 12 months |  | 12 months or longer
($ in thousands) |  | Fair Value |  | Unrealized Losses 1 |  | Unrecognized Gains 2 |  | Fair Value |  | Unrealized Losses 1 |  | Unrecognized Gains 2
HTM securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Obligations of states and political subdivisions |  | $ | 492 |  |  | (20 | ) |  | 19 |  |  | 571 |  |  | (24 | ) |  | 17 |
ABS |  | — |  |  | — |  |  | — |  |  | 2,476 |  |  | (690 | ) |  | 642 |
Subtotal |  | $ | 492 |  |  | (20 | ) |  | 19 |  |  | 3,047 |  |  | (714 | ) |  | 659 |
Total AFS and HTM |  | $ | 1,250,214 |  |  | (42,520 | ) |  | 19 |  |  | 14,230 |  |  | (1,739 | ) |  | 659 |
December 31, 2012 |  | Less than 12 months |  | 12 months or longer
($ in thousands) |  | Fair Value |  | Unrealized Losses 1 |  | Fair Value |  | Unrealized Losses 1
AFS securities |  |  |  |  |  |  |  |  |  |  |  |
U.S. government and government agencies |  | $ | 518 |  |  | (1 | ) |  | — |  |  | — |
Foreign government |  | — |  |  | — |  |  | 2,871 |  |  | (124 | )
Obligations of states and political subdivisions |  | 32,383 |  |  | (327 | ) |  | — |  |  | — |
Corporate securities |  | 50,880 |  |  | (402 | ) |  | — |  |  | — |
ABS |  | 9,137 |  |  | (9 | ) |  | — |  |  | — |
CMBS |  | 7,637 |  |  | (19 | ) |  | 11,830 |  |  | (1,197 | )
RMBS |  | 8,710 |  |  | (59 | ) |  | 5,035 |  |  | (237 | )
Total fixed maturity securities |  | 109,265 |  |  | (817 | ) |  | 19,736 |  |  | (1,558 | )
Equity securities |  | 15,901 |  |  | (459 | ) |  | — |  |  | — |
Subtotal |  | $ | 125,166 |  |  | (1,276 | ) |  | 19,736 |  |  | (1,558 | )
|  | Less than 12 months |  | 12 months or longer
($ in thousands) |  | Fair Value |  | Unrealized Losses 1 |  | Unrecognized Gains 2 |  | Fair Value |  | Unrealized Losses 1 |  | Unrecognized Gains 2
HTM securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Obligations of states and political subdivisions |  | $ | 1,218 |  |  | (33 | ) |  | 29 |  |  | 1,108 |  |  | (47 | ) |  | 38 |
ABS |  | — |  |  | — |  |  | — |  |  | 2,860 |  |  | (840 | ) |  | 753 |
Subtotal |  | 1,218 |  |  | (33 | ) |  | 29 |  |  | 3,968 |  |  | (887 | ) |  | 791 |
Total AFS and HTM |  | $ | 126,384 |  |  | (1,309 | ) |  | 29 |  |  | 23,704 |  |  | (2,445 | ) |  | 791 |
1 Gross unrealized losses include non-OTTI unrealized amounts and OTTI losses recognized in AOCI. In addition, this column includes remaining unrealized gain or loss amounts on securities that were transferred to an HTM designation in the first quarter of 2009 for those securities that are in a net unrealized/unrecognized loss position. 2 Unrecognized gains represent fair value fluctuations from the later of: (i) the date a security is designated as HTM; or (ii) the date that an OTTI charge is recognized on an HTM security.
Schedule Of The Number Of Securities In An Unrealized Unrecognized Loss Position |
($ in thousands) |  |
September 30, 2013 |  | December 31, 2012
Number of Issues | % of Market/Book | Unrealized/ Unrecognized Loss |  | Number of Issues | % of Market/Book | Unrealized/ Unrecognized Loss
501 |  | 80% - 99% | $ | 43,295 |  |  | 100 |  | 80% - 99% | $ | 2,701 |
— |  | 60% - 79% | — |  |  | 1 |  | 60% - 79% | 233 |
1 |  | 40% - 59% | 286 |  |  | — |  | 40% - 59% | — |
— |  | 20% - 39% | — |  |  | — |  | 20% - 39% | — |
— |  | 0% - 19% | — |  |  | — |  | 0% - 19% | — |
|  |  | $ | 43,581 |  |  |  |  |  | $ | 2,934 |
Schedule Of Other Investment Portfolio By Strategy And Remaining Commitment Amount Associated With Each Strategy |
Other Investments |  | Carrying Value |  | September 30, 2013
($ in thousands) |  | September 30, 2013 |  | December 31, 2012 |  | Remaining Commitment
Alternative Investments |  |  |  |  |  |  |  |  |
Secondary private equity |  | $ | 25,954 |  |  | 28,032 |  |  | 7,703 |
Private equity |  | 18,951 |  |  | 18,344 |  |  | 10,502 |
Energy/power generation |  | 17,049 |  |  | 18,640 |  |  | 7,076 |
Mezzanine financing |  | 12,921 |  |  | 12,692 |  |  | 18,796 |
Real estate |  | 12,385 |  |  | 11,751 |  |  | 10,205 |
Distressed debt |  | 11,911 |  |  | 12,728 |  |  | 2,964 |
Venture capital |  | 7,018 |  |  | 7,477 |  |  | 400 |
Total alternative investments |  | 106,189 |  |  | 109,664 |  |  | 57,646 |
Other securities |  | 1,884 |  |  | 4,412 |  |  | 1,289 |
Total other investments |  | $ | 108,073 |  |  | 114,076 |  |  | 58,935 |
Schedule Of Aggregated Summarized Income Statement Financial Information For Partnerhips In Our Alternative Investment Portfolio |
Income Statement Information |  | Quarter ended June 30, |  | Nine Months ended June 30,
($ in millions) |  | 2013 |  | 2012 |  | 2013 |  | 2012
Net investment income |  | $ | 97.8 |  |  | 80.0 |  |  | 352.8 |  |  | 170.1 |
Realized gains |  | 162.8 |  |  | 19.6 |  |  | 762.5 |  |  | 1,004.9 |
Net change in unrealized depreciation |  | 104.8 |  |  | (117.1 | ) |  | 85.9 |  |  | (551.1 | )
Net income (loss) |  | $ | 365.4 |  |  | (17.5 | ) |  | 1,201.2 |  |  | 623.9 |
Selective’s insurance subsidiaries’ other investments income |  | $ | 2.6 |  |  | 0.5 |  |  | 10.1 |  |  | 5.5 |
Schedule of Net Investment Income earned |
|  | Quarter ended September 30, |  | Nine Months ended September 30,
($ in thousands) |  | 2013 |  | 2012 |  | 2013 |  | 2012
Fixed maturity securities |  | $ | 30,569 |  |  | 30,839 |  |  | 90,956 |  |  | 93,948 |
Equity securities |  | 1,341 |  |  | 1,268 |  |  | 4,422 |  |  | 3,785 |
Short-term investments |  | 21 |  |  | 36 |  |  | 102 |  |  | 103 |
Other investments |  | 2,639 |  |  | 497 |  |  | 10,110 |  |  | 5,460 |
Miscellaneous income |  | — |  |  | 41 |  |  | — |  |  | 105 |
Investment expenses |  | (2,113 | ) |  | (2,031 | ) |  | (6,260 | ) |  | (6,117 | )
Net investment income earned |  | $ | 32,457 |  |  | 30,650 |  |  | 99,330 |  |  | 97,284 |
OTTI By Asset Type |
Third Quarter 2013 |  | Gross |  | Included in Other Comprehensive Income (“OCI”) |  | Recognized in Earnings
($ in thousands) |  |  |
Equity securities |  | $ | 680 |  |  | — |  |  | 680 |
OTTI losses |  | $ | 680 |  |  | — |  |  | 680 |
Third Quarter 2012 |  | Gross |  | Included in OCI |  | Recognized in Earnings
($ in thousands) |  |  |
AFS fixed maturity securities |  |  |  |  |  |  |  |  |
ABS |  | $ | 36 |  |  | — |  |  | 36 |
CMBS |  | (1,504 | ) |  | (2,023 | ) |  | 519 |
Total AFS fixed maturities |  | (1,468 | ) |  | (2,023 | ) |  | 555 |
Equity securities |  | 2,389 |  |  | — |  |  | 2,389 |
OTTI losses |  | $ | 921 |  |  | (2,023 | ) |  | 2,944 |
Nine Months 2013 |  | Gross |  | Included in OCI |  | Recognized in Earnings
($ in thousands) |  |  |
HTM fixed maturity securities: |  |  |  |  |  |
ABS |  | $ | (44 | ) |  | (47 | ) |  | 3 |
Total HTM fixed maturity securities |  | (44 | ) |  | (47 | ) |  | 3 |
AFS fixed maturity securities: |  |  |  |  |  |  |  |  |
RMBS |  | (22 | ) |  | (30 | ) |  | 8 |
Total AFS fixed maturity securities |  | (22 | ) |  | (30 | ) |  | 8 |
Equity securities |  | 1,326 |  |  | — |  |  | 1,326 |
Total AFS securities |  | 1,304 |  |  | (30 | ) |  | 1,334 |
Other investments |  | 1,847 |  |  | — |  |  | 1,847 |
OTTI losses |  | $ | 3,107 |  |  | (77 | ) |  | 3,184 |
Nine Months 2012 |  | Gross |  | Included in OCI |  | Recognized in Earnings
($ in thousands) |  |  |
AFS fixed maturity securities |  |  |  |  |  |  |  |  |
ABS |  | $ | 98 |  |  | — |  |  | 98 |
CMBS |  | (1,396 | ) |  | (2,023 | ) |  | 627 |
RMBS |  | (44 | ) |  | (218 | ) |  | 174 |
Total AFS fixed maturity securities |  | (1,342 | ) |  | (2,241 | ) |  | 899 |
Equity securities |  | 2,560 |  |  | — |  |  | 2,560 |
OTTI losses |  | $ | 1,218 |  |  | (2,241 | ) |  | 3,459 |
Gross Credit Loss Impairments on Fixed Maturity Securities for Which a Portion of the OTTI Charge was Recognized in OCI |
|  | Quarter ended September 30,
($ in thousands) |  | 2013 |  | 2012
Balance, beginning of period |  | $ | 7,488 |  |  | 6,775 |
Addition for the amount related to credit loss for which an OTTI was not previously recognized |  | — |  |  | — |
Reductions for securities sold during the period |  | — |  |  | — |
Reductions for securities for which the amount previously recognized in OCI was recognized in earnings because of intention or potential requirement to sell before recovery of amortized cost |  | — |  |  | — |
Reductions for securities for which the entire amount previously recognized in OCI was recognized in earnings due to a decrease in cash flows expected |  | — |  |  | — |
Additional increases to the amount related to credit loss for which an OTTI was previously recognized |  | — |  |  | 519 |
Accretion of credit loss impairments previously recognized due to an increase in cash flows expected to be collected |  | — |  |  | — |
Balance, end of period |  | $ | 7,488 |  |  | 7,294 |
|  | Nine Months ended September 30,
($ in thousands) |  | 2013 |  | 2012
Balance, beginning of period |  | $ | 7,477 |  |  | 6,602 |
Addition for the amount related to credit loss for which an OTTI was not previously recognized |  | — |  |  | — |
Reductions for securities sold during the period |  | — |  |  | — |
Reductions for securities for which the amount previously recognized in OCI was recognized in earnings because of intention or potential requirement to sell before recovery of amortized cost |  | — |  |  | — |
Reductions for securities for which the entire amount previously recognized in OCI was recognized in earnings due to a decrease in cash flows expected |  | — |  |  | — |
Additional increases to the amount related to credit loss for which an OTTI was previously recognized |  | 11 |  |  | 692 |
Accretion of credit loss impairments previously recognized due to an increase in cash flows expected to be collected |  | — |  |  | — |
Balance, end of period |  | $ | 7,488 |  |  | 7,294 |
Components of Net Realized Gains Excluding OTTI Charges |
|  | Quarter ended September 30, |  | Nine Months ended September 30,
($ in thousands) |  | 2013 |  | 2012 |  | 2013 |  | 2012
HTM fixed maturity securities |  |  |  |  |  |  |  |
Gains |  | $ | 32 |  |  | 40 |  |  | 35 |  |  | 195 |
Losses |  | (37 | ) |  | (90 | ) |  | (86 | ) |  | (196 | )
AFS fixed maturity securities |  |  |  |  |  |  |  |  |  |
Gains |  | 662 |  |  | 2,168 |  |  | 2,580 |  |  | 2,941 |
Losses |  | (31 | ) |  | (262 | ) |  | (330 | ) |  | (379 | )
AFS equity securities |  |  |  |  |  |  |  |  |  |
Gains |  | 13,801 |  |  | — |  |  | 24,272 |  |  | 4,775 |
Losses |  | (236 | ) |  | — |  |  | (407 | ) |  | (428 | )
Short-term investments |  |  |  |  |  |  |  |  |  |
Losses |  | — |  |  | — |  |  | — |  |  | (2 | )
Other Investments |  |  |  |  |  |  |  |
Gains |  | — |  |  | — |  |  | — |  |  | 1 |
Losses |  | (80 | ) |  | — |  |  | (940 | ) |  | — |
Total other net realized investment gains |  | 14,111 |  |  | 1,856 |  |  | 25,124 |  |  | 6,907 |
Total OTTI charges recognized in earnings |  | (680 | ) |  | (2,944 | ) |  | (3,184 | ) |  | (3,459 | )
Total net realized gains (losses) |  | $ | 13,431 |  |  | (1,088 | ) |  | 21,940 |  |  | 3,448 |
Held To Maturity Fixed Maturity Securities [Member] |
Investments [Line Items] |
Schedule Of Fixed Maturity Securities By Contractual Maturities |
($ in thousands) |  | Carrying Value |  | Fair Value
Due in one year or less |  | $ | 72,099 |  |  | 74,953 |
Due after one year through five years |  | 312,318 |  |  | 331,927 |
Due after five years through 10 years |  | 34,747 |  |  | 38,176 |
Due after 10 years |  | 2,798 |  |  | 3,473 |
Total HTM fixed maturity securities |  | $ | 421,962 |  |  | 448,529 |
AFS Fixed Maturity Securities [Member] |
Investments [Line Items] |
Schedule Of Fixed Maturity Securities By Contractual Maturities |
($ in thousands) |  | Fair Value
Due in one year or less |  | $ | 324,743 |
Due after one year through five years |  | 1,951,770 |
Due after five years through 10 years |  | 1,329,795 |
Due after 10 years |  | 27,124 |
Total AFS fixed maturity securities |  | $ | 3,633,432 |

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