v3.8.0.1

Related Party Transactions - AmTrust (Details) |  |  |  |  |  |  |  |  | 3 Months Ended | 9 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jul. 01, 2016 | Apr. 01, 2012 USD ($) | Jan. 01, 2012 EUR (€) | Apr. 01, 2011 EUR (€) | Mar. 01, 2011 | Sep. 01, 2010 | Jun. 11, 2008 | Jul. 01, 2007 USD ($) | Sep. 30, 2017 USD ($) | Sep. 30, 2016 USD ($) | Sep. 30, 2017 USD ($) | Sep. 30, 2016 USD ($) | Dec. 31, 2016 USD ($) | Jun. 23, 2008 USD ($) | Apr. 11, 2008 USD ($) | Dec. 18, 2007 USD ($)
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net premiums earned |  |  |  |  |  |  |  |  | $ 653,866,000 | $ 698,278,000 | $ 2,074,475,000 | $ 1,951,851,000 |  |  |  |
Loan to related party |  |  |  |  |  |  |  |  | $ 167,975,000 |  | $ 167,975,000 |  | $ 167,975,000 |  |  |
Leah Karfunkel |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling interest, ownership percentage |  |  |  |  |  |  |  |  | 8.00% |  | 8.00% |  |  |  |  |
Leah Karfunkel | National General Holdings Corp. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling interest, ownership percentage |  |  |  |  |  |  |  |  | 41.80% |  | 41.80% |  |  |  |  |
Barry Zyskind |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling interest, ownership percentage |  |  |  |  |  |  |  |  | 7.60% |  | 7.60% |  |  |  |  |
George Karfunkel, less than 5% ownership |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling interest, ownership percentage |  |  |  |  |  |  |  |  | 5.00% |  | 5.00% |  |  |  |  |
Founding shareholders | AmTrust Financial Services, Inc. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Controlling interest, ownership percentage |  |  |  |  |  |  |  |  | 42.80% |  | 42.80% |  |  |  |  |
AmTrust Financial Services, Inc. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loan to related party |  |  |  |  |  |  |  |  | $ 167,975,000 |  | $ 167,975,000 |  | $ 167,975,000 | $ 34,240,000 | $ 20,193,000 | $ 113,542,000
AmTrust Financial Services, Inc. | London Interbank Offered Rate (LIBOR) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate |  |  |  |  |  |  |  |  | 0.90% |  | 0.90% |  | 0.90% |  |  |
AmTrust Financial Services, Inc. | Quota Share Reinsurance Agreements | Commission expense |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expenses recorded from related party transactions |  |  |  |  |  |  |  |  | $ 138,171,000 | 163,336,000 | $ 460,667,000 | 447,767,000 |  |  |  |
AmTrust Financial Services, Inc. | AmTrust Quota Share Reinsurance Agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percent of premiums written, net of cost of unaffiliated inuring reinsurance from related party |  |  |  |  |  |  |  | 40.00% |  |  |  |  |  |  |  |
Percent of losses with respect to current lines of business, excluding those above covered business threshold to related party |  |  |  |  |  |  |  | 40.00% |  |  |  |  |  |  |  |
Commission rate, percent of ceded written premiums |  |  |  |  |  |  | 34.375% | 31.00% |  |  |  |  |  |  |  |
Contract extension (in years) | 3 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cancellation notice period | 9 months |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cancellation notice period upon the occurrence of certain early termination events (in days) | 30 days |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Early termination events, reduction threshold of stockholders' equity | 50.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
AmTrust Financial Services, Inc. | AmTrust Quota Share Reinsurance Agreement | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commission rate, adjustment criteria, loss ratio floor |  |  |  |  |  |  |  | 81.50% |  |  |  |  |  |  |  |
AmTrust Financial Services, Inc. | AmTrust Quota Share Reinsurance Agreement | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commission rate, adjustment criteria, loss ratio ceiling |  |  |  |  |  |  |  | 95.00% |  |  |  |  |  |  |  |
AmTrust Financial Services, Inc. | AmTrust European Hospital Liability Quota Share Agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commission rate, percent of ceded written premiums |  |  |  | 5.00% |  |  |  |  |  |  |  |  |  |  |  |
Premiums and losses related to policies | 32.50% |  |  | 40.00% |  |  |  |  |  |  |  |  |  |  |  |
Maximum limit of liability attaching | € |  |  | € 10,000,000 | € 5,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Percent basis currency equivalent of maximum limit of liability attaching |  |  |  | 100.00% |  |  |  |  |  |  |  |  |  |  |  |
Future premiums and losses related to policies | 20.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
AmTrust Financial Services, Inc. | AmTrust Technology Reinsurance Agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commission rate, percent of ceded written premiums |  |  |  |  |  | 5.00% |  |  |  |  |  |  |  |  |  |
Percent of credit insurance business to cede |  |  |  |  |  | 90.00% |  |  |  |  |  |  |  |  |  |
Percent of general liability business to cede |  |  |  |  |  | 100.00% |  |  |  |  |  |  |  |  |  |
AmTrust Financial Services, Inc. | AmTrust Technology Reinsurance Agreement | Premiums Earned |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue from related parties |  |  |  |  |  |  |  |  | 1,000 | 0 | 4,000 | 12,000 |  |  |  |
AmTrust Financial Services, Inc. | AmTrust NA Reinsurance Agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreement period (in years) |  | 1 year |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reinsurance coverage threshold |  | $ 1,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net premiums earned |  |  |  |  |  |  |  |  | 351,000 | 305,000 | 1,182,000 | 745,000 |  |  |  |
AmTrust Financial Services, Inc. | AmTrust NA Reinsurance Agreement | Commission expense |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expenses recorded from related party transactions |  |  |  |  |  |  |  |  | 53,000 | 87,000 | 256,000 | 187,000 |  |  |  |
AmTrust Financial Services, Inc. | Reinsurer Trust Assets Collateral Agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collateral held by related party |  |  |  |  |  |  |  |  | 3,245,369,000 |  | 3,245,369,000 |  | $ 2,766,032,000 |  |  |
Accrued interest on collateral held by related party |  |  |  |  |  |  |  |  | 21,288,000 |  | 21,288,000 |  | 20,420,000 |  |  |
AmTrust Financial Services, Inc. | Reinsurance Brokerage Agreements |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cancellation notice period |  |  |  |  |  |  |  | 30 days |  |  |  |  |  |  |  |
Brokerage fee, percent of premium assumed |  |  |  |  |  |  |  | 1.25% |  |  |  |  |  |  |  |
AmTrust Financial Services, Inc. | Reinsurance Brokerage Agreements | Brokerage expense |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expenses recorded from related party transactions |  |  |  |  |  |  |  |  | 5,642,000 | 6,652,000 | 18,662,000 | 18,330,000 |  |  |  |
Balances due to related party |  |  |  |  |  |  |  |  | 15,476,000 |  | 15,476,000 |  | $ 14,395,000 |  |  |
AmTrust Financial Services, Inc. | Insurance Intermediary | Brokerage expense |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expenses recorded from related party transactions |  |  |  |  |  |  |  |  | 54,000 | 41,000 | 55,000 | 42,000 |  |  |  |
AmTrust Financial Services, Inc. | Asset Management Agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cancellation notice period |  |  |  |  |  |  |  | 30 days |  |  |  |  |  |  |  |
Quarterly brokerage fee, above portfolio threshold, percent of average holdings |  |  |  |  |  |  |  | 0.0375% |  |  |  |  |  |  |  |
Quarterly brokerage fee, portfolio threshold |  |  |  |  |  |  |  | $ 1,000,000,000 |  |  |  |  |  |  |  |
AmTrust Financial Services, Inc. | Asset Management Agreement | Investment Management Fee |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expenses recorded from related party transactions |  |  |  |  |  |  |  |  | 1,927,000 | 1,780,000 | 5,586,000 | 5,122,000 |  |  |  |
AmTrust Financial Services, Inc. | AmTrust Time Sharing Agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contract extension (in years) |  |  |  |  | 1 year |  |  |  |  |  |  |  |  |  |  |
AmTrust Financial Services, Inc. | AmTrust Time Sharing Agreement | Aircraft expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expenses recorded from related party transactions |  |  |  |  |  |  |  |  | $ 0 | $ 22,000 | $ 39,000 | $ 61,000 |  |  |  |
AmTrust Financial Services, Inc. | National General Holdings Corp. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling interest, ownership percentage |  |  |  |  |  |  |  |  | 1.60% |  | 1.60% |  |  |  |  |

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- Definition Related Party Transaction, Accrued Interest on Collateral Held by Related Party + References No definition available. + Details
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- Definition Related Party Transaction, Collateral Held by Related Party + References No definition available. + Details
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- Definition Related Party Transaction, Commission Rate, Adjustment Criteria, Loss Ratio Ceiling + References No definition available. + Details
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- Definition Related Party Transaction, Commission Rate, Adjustment Criteria, Loss Ratio Floor + References No definition available. + Details
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- Definition Related Party Transaction, Commission Rate, Percent of Ceded Written Premiums + References No definition available. + Details
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- Definition Related Party Transaction, Early Termination Events, Reduction Threshold of Stockholders' Equity + References No definition available. + Details
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- Definition Related Party Transaction, Future Premiums and Losses Related to Policies + References No definition available. + Details
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- Definition Related Party Transaction, Percent Basis Currency Equivalent of Maximum Limit of Liability Attaching + References No definition available. + Details
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- Definition Related Party Transaction, Percent of Credit Insurance Business to Cede + References No definition available. + Details
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- Definition Related Party Transaction, Percent of Losses With Respect to Current Lines of Business, Excluding Those Above Covered Business Threshold To Related Party + References No definition available. + Details
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- Definition Related Party Transaction, Percent of Premium Written, Net of Cost of Unaffiliated Inuring Reinsurance From Related Party + References No definition available. + Details
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- Definition Related Party Transaction, Premiums and Losses Related to Policies + References No definition available. + Details
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- Definition Related Party Transaction, Reinsurance Coverage Threshold + References No definition available. + Details
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- Definition The percentage points (also referred to as 'margin') added to the reference rate as stated in the loan agreement and used to compute the variable rate on the loans receivable. For instance, the loan agreement might state that the interest rate the borrower is obligated to pay is the London Interbank Offered Rate (LIBOR) plus three quarters (3/4) of a percentage point adjusted quarterly (each three months). LIBOR in this example is the index or reference rate, 3/4 percentage point is the margin, the reference rate plus the margin is the fully indexed rate. This element would be used to report separately the margin. + References No definition available. + Details
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