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Reinsurance (Tables) | 9 Months Ended
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Sep. 30, 2018
Reinsurance Disclosures [Abstract] |
Schedule of List Of Direct, Assumed, And Ceded Reinsurance Amounts |
|  | Quarter ended September 30, |  | Nine Months ended September 30,
($ in thousands) |  | 2018 |  | 2017 |  | 2018 |  | 2017
Premiums written: |  |  |  |  |  |  |  |  |  |  |  |
Direct |  | $ | 752,834 |  |  | 706,918 |  |  | $ | 2,220,431 |  |  | 2,097,146 |
Assumed |  | 7,084 |  |  | 8,506 |  |  | 19,891 |  |  | 20,685 |
Ceded |  | (108,250 | ) |  | (111,147 | ) |  | (308,846 | ) |  | (301,036 | )
Net |  | $ | 651,668 |  |  | 604,277 |  |  | $ | 1,931,476 |  |  | 1,816,795 |
Premiums earned: |  |  |  |  |  |  |  |  |  |  |  |
Direct |  | $ | 706,497 |  |  | 666,048 |  |  | $ | 2,086,953 |  |  | 1,967,364 |
Assumed |  | 6,484 |  |  | 7,623 |  |  | 19,220 |  |  | 19,465 |
Ceded |  | (98,704 | ) |  | (101,616 | ) |  | (295,232 | ) |  | (285,890 | )
Net |  | $ | 614,277 |  |  | 572,055 |  |  | $ | 1,810,941 |  |  | 1,700,939 |
Loss and loss expenses incurred: |  |  |  |  |  |  |  |  |  |  |  |
Direct |  | $ | 477,427 |  |  | 455,728 |  |  | $ | 1,289,357 |  |  | 1,187,400 |
Assumed |  | 6,529 |  |  | 5,420 |  |  | 16,897 |  |  | 17,623 |
Ceded |  | (104,757 | ) |  | (116,561 | ) |  | (175,786 | ) |  | (201,405 | )
Net |  | $ | 379,199 |  |  | 344,587 |  |  | $ | 1,130,468 |  |  | 1,003,618 |
Schedule of Ceded Premiums and Losses Related to Flood Operations |
Ceded to NFIP |  | Quarter ended September 30, |  | Nine Months ended September 30,
($ in thousands) |  | 2018 |  | 2017 |  | 2018 |  | 2017
Ceded premiums written |  | $ | (70,100 | ) |  | (68,132 | ) |  | $ | (193,110 | ) |  | (188,274 | )
Ceded premiums earned |  | (61,448 | ) |  | (59,847 | ) |  | (180,582 | ) |  | (174,779 | )
Ceded loss and loss expenses incurred |  | (89,396 | ) |  | (112,994 | ) |  | (115,376 | ) |  | (134,675 | )

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- Definition This table discloses the premiums and losses and loss expenses that are ceded to the National Flood Insurance Program. + References No definition available. + Details
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- Definition Tabular disclosure of the effects of reinsurance, for example, but not limited to, disclosure of direct, assumed, and ceded insurance. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 605 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6486672&loc=d3e27261-158547 + Details
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