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Reinsurance (Tables) | 9 Months Ended
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Sep. 30, 2017
Reinsurance Disclosures [Abstract] |
Schedule of List Of Direct, Assumed, And Ceded Reinsurance Amounts |
|  | Quarter ended September 30, |  | Nine Months ended September 30,
($ in thousands) |  | 2017 |  | 2016 |  | 2017 |  | 2016
Premiums written: |  |  |  |  |  |  |  |  |  |  |  |
Direct |  | $ | 706,918 |  |  | 669,844 |  |  | $ | 2,097,146 |  |  | 1,981,984 |
Assumed |  | 8,506 |  |  | 7,644 |  |  | 20,685 |  |  | 21,752 |
Ceded |  | (111,147 | ) |  | (98,715 | ) |  | (301,036 | ) |  | (281,464 | )
Net |  | $ | 604,277 |  |  | 578,773 |  |  | $ | 1,816,795 |  |  | 1,722,272 |
Premiums earned: |  |  |  |  |  |  |  |  |  |  |  |
Direct |  | $ | 666,048 |  |  | 627,520 |  |  | $ | 1,967,364 |  |  | 1,846,587 |
Assumed |  | 7,623 |  |  | 7,163 |  |  | 19,465 |  |  | 20,604 |
Ceded |  | (101,616 | ) |  | (92,254 | ) |  | (285,890 | ) |  | (270,372 | )
Net |  | $ | 572,055 |  |  | 542,429 |  |  | $ | 1,700,939 |  |  | 1,596,819 |
Loss and loss expenses incurred: |  |  |  |  |  |  |  |  |  |  |  |
Direct |  | $ | 455,728 |  |  | 428,520 |  |  | $ | 1,187,400 |  |  | 1,152,223 |
Assumed |  | 5,420 |  |  | 5,929 |  |  | 17,623 |  |  | 18,424 |
Ceded |  | (116,561 | ) |  | (118,191 | ) |  | (201,405 | ) |  | (258,766 | )
Net |  | $ | 344,587 |  |  | 316,258 |  |  | $ | 1,003,618 |  |  | 911,881 |
Schedule of Ceded Premiums and Losses Related to Flood Operations | Ceded premiums and losses related to our participation in the NFIP, under which 100% of our flood premiums, losses, and loss expenses are ceded to the NFIP, are as follows:
Ceded to NFIP |  | Quarter ended September 30, |  | Nine Months ended September 30,
($ in thousands) |  | 2017 |  | 2016 |  | 2017 |  | 2016
Ceded premiums written |  | $ | (68,132 | ) |  | (62,051 | ) |  | $ | (188,274 | ) |  | (179,205 | )
Ceded premiums earned |  | (59,847 | ) |  | (56,505 | ) |  | (174,779 | ) |  | (169,986 | )
Ceded loss and loss expenses incurred |  | (112,994 | ) |  | (99,200 | ) |  | (134,675 | ) |  | (164,179 | )

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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://www.xbrl.org/2003/role/presentationRef -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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