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Reinsurance (Tables) | 6 Months Ended
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Jun. 30, 2018
Reinsurance Disclosures [Abstract] |
Schedule of List Of Direct, Assumed, And Ceded Reinsurance Amounts |
|  | Quarter ended June 30, |  | Six Months ended June 30,
($ in thousands) |  | 2018 |  | 2017 |  | 2018 |  | 2017
Premiums written: |  |  |  |  |  |  |  |  |  |  |  |
Direct |  | $ | 753,363 |  |  | 706,408 |  |  | $ | 1,467,597 |  |  | 1,390,228 |
Assumed |  | 6,536 |  |  | 6,488 |  |  | 12,807 |  |  | 12,179 |
Ceded |  | (104,651 | ) |  | (99,082 | ) |  | (200,596 | ) |  | (189,889 | )
Net |  | $ | 655,248 |  |  | 613,814 |  |  | $ | 1,279,808 |  |  | 1,212,518 |
Premiums earned: |  |  |  |  |  |  |  |  |  |  |  |
Direct |  | $ | 696,723 |  |  | 654,588 |  |  | $ | 1,380,456 |  |  | 1,301,316 |
Assumed |  | 6,612 |  |  | 6,063 |  |  | 12,736 |  |  | 11,842 |
Ceded |  | (98,499 | ) |  | (92,621 | ) |  | (196,528 | ) |  | (184,274 | )
Net |  | $ | 604,836 |  |  | 568,030 |  |  | $ | 1,196,664 |  |  | 1,128,884 |
Loss and loss expenses incurred: |  |  |  |  |  |  |  |  |  |  |  |
Direct |  | $ | 391,014 |  |  | 389,550 |  |  | $ | 811,930 |  |  | 731,672 |
Assumed |  | 2,364 |  |  | 7,766 |  |  | 10,368 |  |  | 12,203 |
Ceded |  | (27,050 | ) |  | (55,757 | ) |  | (71,029 | ) |  | (84,844 | )
Net |  | $ | 366,328 |  |  | 341,559 |  |  | $ | 751,269 |  |  | 659,031 |
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 June 30, |  | Six Months ended June 30,
($ in thousands) |  | 2018 |  | 2017 |  | 2018 |  | 2017
Ceded premiums written |  | $ | (66,341 | ) |  | (63,808 | ) |  | $ | (123,010 | ) |  | (120,142 | )
Ceded premiums earned |  | (60,143 | ) |  | (57,655 | ) |  | (119,134 | ) |  | (114,932 | )
Ceded loss and loss expenses incurred |  | (10,261 | ) |  | (15,140 | ) |  | (25,980 | ) |  | (21,681 | )

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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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