Collateralized Reinsurance And Trust Agreements	6 Months Ended
Jun. 30, 2017
Collateralized Reinsurance And Trust Agreements [Abstract]
Collateralized Reinsurance And Trust Agreements	9. COLLATERALIZED REINSURANCE AND TRUST AGREEMENTS A subsidiary of the Company, Everest Re, has established a trust agreement, which effectively uses Everest Re's investments as collateral, as security for assumed losses payable to a non-affiliated ceding company. At June 30, 2017, the total amount on deposit in the trust account was $649,841 thousand. On April 24, 2014, the Company entered into two collateralized reinsurance agreements with Kilimanjaro Re Limited ("Kilimanjaro"), a Bermuda based special purpose reinsurer, to provide the Company with catastrophe reinsurance coverage. These agreements are multi-year reinsurance contracts which cover specified named storm and earthquake events. The first agreement provides up to $250,000 thousand of reinsurance coverage from named storms in specified states of the Southeastern United States. The second agreement provides up to $200,000 thousand of reinsurance coverage from named storms in specified states of the Southeast, Mid-Atlantic and Northeast regions of the United States and Puerto Rico as well as reinsurance coverage from earthquakes in specified states of the Southeast, Mid-Atlantic, Northeast and West regions of the United States, Puerto Rico and British Columbia. On November 18, 2014, the Company entered into a collateralized reinsurance agreement with Kilimanjaro Re to provide the Company with catastrophe reinsurance coverage. This agreement is a multi-year reinsurance contract which covers specified earthquake events. The agreement provides up to $500,000 thousand of reinsurance coverage from earthquakes in the United States, Puerto Rico and Canada. On December 1, 2015 the Company entered into two collateralized reinsurance agreements with Kilimanjaro Re to provide the Company with catastrophe reinsurance coverage. These agreements are multi-year reinsurance contracts which cover named storm and earthquake events. The first agreement provides up to $300,000 thousand of reinsurance coverage from named storms and earthquakes in the United States, Puerto Rico and Canada. The second agreement provides up to $325,000 thousand of reinsurance coverage from named storms and earthquakes in the United States, Puerto Rico and Canada. On April 13, 2017 the Company entered into six collateralized reinsurance agreements with Kilimanjaro Re to provide the Company with annual aggregate catastrophe reinsurance coverage. The initial three agreements are four year reinsurance contracts which cover named storm and earthquake events. These agreements provide up to $225,000 thousand, $400,000 thousand and $325,000 thousand, respectively, of annual aggregate reinsurance coverage from named storms and earthquakes in the United States, Puerto Rico and Canada. The subsequent three agreements are five year reinsurance contracts which cover named storm and earthquake events. These agreements provide up to $50,000 thousand, $75,000 thousand and $175,000 thousand, respectively, of annual aggregate reinsurance coverage from named storms and earthquakes in the United States, Puerto Rico and Canada. Kilimanjaro has financed the various property catastrophe reinsurance coverages by issuing catastrophe bonds to unrelated, external investors. On April 24, 2014, Kilimanjaro issued $450,000 thousand of notes ("Series 2014-1 Notes"). On November 18, 2014, Kilimanjaro issued $500,000 thousand of notes ("Series 2014-2 Notes"). On December 1, 2015, Kilimanjaro issued $625,000 thousand of notes ("Series 2015-1 Notes). On April 13, 2017, Kilimanjaro issued $950,000 thousand of notes ("Series 2017-1 Notes) and $300,000 thousand of notes ("Series 2017-2 Notes). The proceeds from the issuance of the Notes listed above are held in reinsurance trust throughout the duration of the applicable reinsurance agreements and invested solely in US government money market funds with a rating of at least "AAAm" by Standard & Poor's.

9. COLLATERALIZED REINSURANCE AND TRUST AGREEMENTS

A subsidiary of the Company, Everest Re, has established a trust agreement, which effectively uses Everest Re's investments as collateral, as security for assumed losses payable to a non-affiliated ceding company. At June 30, 2017, the total amount on deposit in the trust account was $649,841 thousand.

On April 24, 2014, the Company entered into two collateralized reinsurance agreements with Kilimanjaro Re Limited ("Kilimanjaro"), a Bermuda based special purpose reinsurer, to provide the Company with catastrophe reinsurance coverage. These agreements are multi-year reinsurance contracts which cover specified named storm and earthquake events. The first agreement provides up to $250,000 thousand of reinsurance coverage from named storms in specified states of the Southeastern United States. The second agreement provides up to $200,000 thousand of reinsurance coverage from named storms in specified states of the Southeast, Mid-Atlantic and Northeast regions of the United States and Puerto Rico as well as reinsurance coverage from earthquakes in specified states of the Southeast, Mid-Atlantic, Northeast and West regions of the United States, Puerto Rico and British Columbia.

On November 18, 2014, the Company entered into a collateralized reinsurance agreement with Kilimanjaro Re to provide the Company with catastrophe reinsurance coverage. This agreement is a multi-year reinsurance contract which covers specified earthquake events. The agreement provides up to $500,000 thousand of reinsurance coverage from earthquakes in the United States, Puerto Rico and Canada.

On December 1, 2015 the Company entered into two collateralized reinsurance agreements with Kilimanjaro Re to provide the Company with catastrophe reinsurance coverage. These agreements are multi-year reinsurance contracts which cover named storm and earthquake events. The first agreement provides up to $300,000 thousand of reinsurance coverage from named storms and earthquakes in the United States, Puerto Rico and Canada. The second agreement provides up to $325,000 thousand of reinsurance coverage from named storms and earthquakes in the United States, Puerto Rico and Canada.

On April 13, 2017 the Company entered into six collateralized reinsurance agreements with Kilimanjaro Re to provide the Company with annual aggregate catastrophe reinsurance coverage. The initial three agreements are four year reinsurance contracts which cover named storm and earthquake events. These agreements provide up to $225,000 thousand, $400,000 thousand and $325,000 thousand, respectively, of annual aggregate reinsurance coverage from named storms and earthquakes in the United States, Puerto Rico and Canada. The subsequent three agreements are five year reinsurance contracts which cover named storm and earthquake events. These agreements provide up to $50,000 thousand, $75,000 thousand and $175,000 thousand, respectively, of annual aggregate reinsurance coverage from named storms and earthquakes in the United States, Puerto Rico and Canada.

Kilimanjaro has financed the various property catastrophe reinsurance coverages by issuing catastrophe bonds to unrelated, external investors. On April 24, 2014, Kilimanjaro issued $450,000 thousand of notes ("Series 2014-1 Notes"). On November 18, 2014, Kilimanjaro issued $500,000 thousand of notes ("Series 2014-2 Notes"). On December 1, 2015, Kilimanjaro issued $625,000 thousand of notes ("Series 2015-1 Notes). On April 13, 2017, Kilimanjaro issued $950,000 thousand of notes ("Series 2017-1 Notes) and $300,000 thousand of notes ("Series 2017-2 Notes). The proceeds from the issuance of the Notes listed above are held in reinsurance trust throughout the duration of the applicable reinsurance agreements and invested solely in US government money market funds with a rating of at least "AAAm" by Standard & Poor's.