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Reinsurance (Tables) | 3 Months Ended
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Mar. 31, 2018
Insurance [Abstract] |
Effects of reinsurance on premiums and benefits | The effects of reinsurance on premiums written and contract deposits; premiums and contract charges earned; and benefits, claims and settlement expenses were as follows:
($ in thousands) |  | Gross Amount |  | Ceded to Other Companies |  | Assumed from Other Companies |  | Net Amount
Three months ended March 31, 2018 |  |  |  |  |  |  |  |  |  |  |  |
Premiums written and contract deposits (1) |  | $ | 288,816 |  |  | $ | 5,514 |  |  | $ | 706 |  |  | $ | 284,008 |
Premiums and contract charges earned |  | 207,737 |  |  | 5,528 |  |  | 789 |  |  | 202,998 |
Benefits, claims and settlement expenses |  | 151,968 |  |  | 9,014 |  |  | 608 |  |  | 143,562 |
Three months ended March 31, 2017 |  |  |  |  |  |  |  |  |  |  |  |
Premiums written and contract deposits (1) |  | $ | 301,512 |  |  | $ | 5,510 |  |  | $ | 730 |  |  | $ | 296,732 |
Premiums and contract charges earned |  | 200,455 |  |  | 5,534 |  |  | 801 |  |  | 195,722 |
Benefits, claims and settlement expenses |  | 147,271 |  |  | 3,883 |  |  | 708 |  |  | 144,096 |
________________ (1) This measure is not based on accounting principles generally accepted in the U.S. (non-GAAP). An explanation of this non-GAAP measure is contained in the Glossary of Selected Terms included as an exhibit in the Company's reports filed with the SEC.

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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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- References No definition available. + Details
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