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Schedule III - Supplementary Insurance Information (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Deferred policy acquisition costs | $ 172,981 |  | $ 155,523 |  | $ 135,761 |
Reserve for loss and loss expenses | 3,349,770 |  | 4,068,941 |  | 3,144,924 |
Unearned premiums | 1,059,155 |  | 974,706 |  | 906,991 |
Net premiums earned | 1,736,072 |  | 1,584,119 |  | 1,439,313 |
Net investment income | 155,375 | [1] | 140,865 | [1] | 149,683 | [1]
Losses and loss expenses incurred | 1,121,738 |  | 1,120,990 |  | 1,074,987 |
Amortization of deferred policy acquisition costs | 331,828 | [2] | 298,547 | [3] | 266,061 | [4]
Other operating expenses | 243,740 | [5] | 228,589 | [6] | 201,849 | [7]
Net premiums written | 1,810,159 |  | 1,666,883 |  | 1,485,349 |
Policy acquisition costs | 579,977 |  | 526,143 |  | 466,404 |
Other income | (12,294) |  | (9,118) |  | (8,479) |
Other expenses | 35,686 |  | 30,462 |  | 26,425 |
Total reinsurance recoverables | 550,897 |  | 1,421,109 |  |  |
Total | 575,568 |  | 527,136 |  | 467,910 |
Total Standard Insurance Operations [Member] |  |  |  |  |  |
Deferred policy acquisition costs | 156,546 |  | 141,551 |  | 131,043 |
Reserve for loss and loss expenses | 3,189,498 |  | 3,948,638 |  | 3,083,359 |
Unearned premiums | 995,830 |  | 917,918 |  | 885,850 |
Net premiums earned | 1,610,951 |  | 1,504,890 |  | 1,435,399 |
Net investment income | 0 | [1] | 0 | [1] | 0 | [1]
Losses and loss expenses incurred | 1,037,711 |  | 1,057,787 |  | 1,071,815 |
Amortization of deferred policy acquisition costs | 303,540 | [2] | 280,700 | [3] | 265,009 | [4]
Other operating expenses | 227,199 | [5] | 210,852 | [6] | 195,498 | [7]
Net premiums written | 1,678,497 |  | 1,553,586 |  | 1,461,216 |
Excess And Surplus Operations [Member] |  |  |  |  |  |
Deferred policy acquisition costs | 16,435 |  | 13,972 |  | 4,718 |
Reserve for loss and loss expenses | 160,272 |  | 120,303 |  | 61,565 |
Unearned premiums | 63,325 |  | 56,788 |  | 21,141 |
Net premiums earned | 125,121 |  | 79,229 |  | 3,914 |
Net investment income | 0 | [1] | 0 | [1] | 0 | [1]
Losses and loss expenses incurred | 84,027 |  | 63,203 |  | 3,172 |
Amortization of deferred policy acquisition costs | 28,288 | [2] | 17,847 | [3] | 1,052 | [4]
Other operating expenses | 16,541 | [5] | 17,737 | [6] | 6,351 | [7]
Net premiums written | 131,662 |  | 113,297 |  | 24,133 |
Investments Segment [Member] |  |  |  |  |  |
Deferred policy acquisition costs | 0 |  | 0 |  | 0 |
Reserve for loss and loss expenses | 0 |  | 0 |  | 0 |
Unearned premiums | 0 |  | 0 |  | 0 |
Net premiums earned | 0 |  | 0 |  | 0 |
Net investment income | 155,375 | [1] | 140,865 | [1] | 149,683 | [1]
Losses and loss expenses incurred | 0 |  | 0 |  | 0 |
Amortization of deferred policy acquisition costs | 0 | [2] | 0 | [3] | 0 | [4]
Other operating expenses | 0 | [5] | 0 | [6] | 0 | [7]
Net premiums written | 0 |  | 0 |  | 0 |
Miscellaneous Income [Member] |  |  |  |  |  |
Other income | (12,201) | [5] | (8,827) | [6] | (8,069) | [7]
Other Income [Member] |  |  |  |  |  |
Other income | (93) |  | (291) |  | (410) |
Miscellaneous Expense [Member] |  |  |  |  |  |
Other expenses | 7,792 | [5] | 9,820 | [6] | 9,575 | [7]
Other Expense [Member] |  |  |  |  |  |
Other expenses | $ 27,894 |  | $ 20,642 |  | $ 16,850 |
[1] | Includes “Net investment income earned” and “Net realized investment gains” on the Consolidated Statements of Income.
[2] | The total of “Amortization of deferred policy acquisition costs” of $331,828 and “Other operating expenses” of $243,740 reconciles to the Consolidated Statements of Income as follows:
[3] | The total of “Amortization of deferred policy acquisition costs” of $298,547 and “Other operating expenses” of $228,589 reconciles to the Consolidated Statements of Income as follows:
[4] | The total of “Amortization of deferred policy acquisition costs” of $266,061 and “Other operating expenses” of $201,849 reconciles to the Consolidated Statements of Income as follows:
[5] | In addition to amounts related to the Standard and E&S Insurance Operations segments, “Other income” and “Other expenses” on the Consolidated Statements of Income includes holding company income and expense amounts of $93 and $27,894, respectively.
[6] | In addition to amounts related to the Standard and E&S Insurance Operations segments, “Other income” and “Other expenses” on the Consolidated Statements of Income includes holding company income and expense amounts of $291 and $20,642, respectively.
[7] | In addition to amounts related to the Insurance Operations segment, “Other income” and “Other expenses” on the Consolidated Statements of Income includes holding company income and expense amounts of $410 and $16,850, respectively.

X
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- Definition The known and estimated amount recoverable as of the balance sheet date from reinsurers for claims paid or incurred by the ceding insurer and associated claims settlement expenses, including estimated amounts for claims incurred but not reported, and policy benefits, net of any related valuation allowance. + References No definition available. + Details
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