v2.4.0.8

Segments - Net Income (Loss) and Total Assets (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended |
--- | --- | ---
Mar. 31, 2014 Segment | Mar. 31, 2013 | Dec. 31, 2013
Segment Reporting Information [Line Items] |  |  |  |  |
Number of operating segments | 3 |  |  |  |
Net Income (Loss) [Abstract] |  |  |  |  |
Net premiums written | $ 709,892 |  | $ 689,059 |  |
Net premiums earned | 519,230 |  | 488,442 |  |
Other insurance revenue | 5,162 |  | 5,215 |  |
Net loss and loss adjustment expenses | (351,344) |  | (334,895) |  |
Commission and other acquisition expenses | (146,082) |  | (132,330) |  |
General and administrative expenses | (11,737) |  | (11,461) |  |
Underwriting income (loss) | 15,229 |  | 14,971 |  |
Reconciliation to net income |  |  |  |  |
Net investment income and realized gains on investment | 27,930 |  | 25,262 |  |
Amortization of intangible assets | (819) |  | (945) |  |
Foreign exchange and other gains | 138 |  | 1,547 |  |
Interest and amortization expenses | (8,064) |  | (9,570) |  |
Accelerated amortization of junior subordinated debt discount and issuance cost | (28,240) |  | 0 |  |
Other general and administrative expenses | (3,187) |  | (2,634) |  |
Income tax expense | (926) |  | (524) |  |
Net income | 2,061 |  | 28,107 |  |
Net loss and loss adjustment expense ratio | 67.00% | [1] | 67.80% | [1] |
Commission and other acquisition expense ratio | 27.90% | [2] | 26.80% | [2] |
General and administrative expense ratio | 2.80% | [3] | 2.90% | [3] |
Combined ratio | 97.70% | [4] | 97.50% | [4] |
Assets [Abstract] |  |  |  |  |
Reinsurance balance receivable, net | 675,219 |  |  |  | 560,145
Prepaid reinsurance premiums | 31,870 |  |  |  | 39,186
Reinsurance recoverable on unpaid losses | 83,350 |  |  |  | 84,036
Deferred commissions and other acquisition expenses | 348,716 |  |  |  | 304,908
Loan to related party | 167,975 |  |  |  | 167,975
Goodwill and intangible assets, net | 89,794 |  |  |  | 90,613
Restricted cash and cash equivalents and investments | 2,360,511 |  |  |  | 2,231,698
Other assets | 28,617 |  |  |  | 32,358
Total Assets - operating segments | 3,786,052 |  |  |  | 3,510,919
Corporate assets | 1,082,504 |  |  |  | 1,202,460
Total assets | 4,868,556 |  |  |  | 4,713,379
Diversified Reinsurance Segment [Member] |  |  |  |  |
Net Income (Loss) [Abstract] |  |  |  |  |
Net premiums written | 291,619 |  | 267,610 |  |
Net premiums earned | 199,316 |  | 196,249 |  |
Other insurance revenue | 5,162 |  | 5,215 |  |
Net loss and loss adjustment expenses | (141,364) |  | (140,763) |  |
Commission and other acquisition expenses | (50,841) |  | (44,782) |  |
General and administrative expenses | (10,990) |  | (10,798) |  |
Underwriting income (loss) | 1,283 |  | 5,121 |  |
Reconciliation to net income |  |  |  |  |
Net loss and loss adjustment expense ratio | 69.10% | [1] | 69.90% | [1] |
Commission and other acquisition expense ratio | 24.90% | [2] | 22.20% | [2] |
General and administrative expense ratio | 5.40% | [3] | 5.40% | [3] |
Combined ratio | 99.40% | [4] | 97.50% | [4] |
Assets [Abstract] |  |  |  |  |
Reinsurance balance receivable, net | 336,807 |  |  |  | 260,882
Prepaid reinsurance premiums | 31,870 |  |  |  | 39,186
Reinsurance recoverable on unpaid losses | 83,350 |  |  |  | 84,036
Deferred commissions and other acquisition expenses | 102,342 |  |  |  | 88,482
Loan to related party | 0 |  |  |  | 0
Goodwill and intangible assets, net | 89,794 |  |  |  | 90,613
Restricted cash and cash equivalents and investments | 1,032,818 |  |  |  | 1,029,537
Other assets | 28,617 |  |  |  | 32,358
Total Assets - operating segments | 1,705,598 |  |  |  | 1,625,094
Corporate assets | 0 |  |  |  | 0
Total assets | 1,705,598 |  |  |  | 1,625,094
AmTrust Quota Share Reinsurance Segment [Member] |  |  |  |  |
Net Income (Loss) [Abstract] |  |  |  |  |
Net premiums written | 419,010 |  | 344,818 |  |
Net premiums earned | 304,922 |  | 220,288 |  |
Other insurance revenue | 0 |  | 0 |  |
Net loss and loss adjustment expenses | (199,544) |  | (145,645) |  |
Commission and other acquisition expenses | (90,485) |  | (65,132) |  |
General and administrative expenses | (548) |  | (489) |  |
Underwriting income (loss) | 14,345 |  | 9,022 |  |
Reconciliation to net income |  |  |  |  |
Net loss and loss adjustment expense ratio | 65.40% | [1] | 66.10% | [1] |
Commission and other acquisition expense ratio | 29.70% | [2] | 29.60% | [2] |
General and administrative expense ratio | 0.20% | [3] | 0.20% | [3] |
Combined ratio | 95.30% | [4] | 95.90% | [4] |
Assets [Abstract] |  |  |  |  |
Reinsurance balance receivable, net | 338,412 |  |  |  | 278,573
Prepaid reinsurance premiums | 0 |  |  |  | 0
Reinsurance recoverable on unpaid losses | 0 |  |  |  | 0
Deferred commissions and other acquisition expenses | 244,322 |  |  |  | 209,439
Loan to related party | 167,975 |  |  |  | 167,975
Goodwill and intangible assets, net | 0 |  |  |  | 0
Restricted cash and cash equivalents and investments | 1,221,365 |  |  |  | 1,098,409
Other assets | 0 |  |  |  | 0
Total Assets - operating segments | 1,972,074 |  |  |  | 1,754,396
Corporate assets | 0 |  |  |  | 0
Total assets | 1,972,074 |  |  |  | 1,754,396
NGHC Quota Share Segment [Member] |  |  |  |  |
Net Income (Loss) [Abstract] |  |  |  |  |
Net premiums written | (737) |  | 76,631 |  |
Net premiums earned | 14,992 |  | 71,905 |  |
Other insurance revenue | 0 |  | 0 |  |
Net loss and loss adjustment expenses | (10,436) |  | (48,487) |  |
Commission and other acquisition expenses | (4,756) |  | (22,416) |  |
General and administrative expenses | (199) |  | (174) |  |
Underwriting income (loss) | (399) |  | 828 |  |
Reconciliation to net income |  |  |  |  |
Net loss and loss adjustment expense ratio | 69.60% | [1] | 67.40% | [1] |
Commission and other acquisition expense ratio | 31.70% | [2] | 31.20% | [2] |
General and administrative expense ratio | 1.40% | [3] | 0.20% | [3] |
Combined ratio | 102.70% | [4] | 98.80% | [4] |
Assets [Abstract] |  |  |  |  |
Reinsurance balance receivable, net | 0 |  |  |  | 20,690
Prepaid reinsurance premiums | 0 |  |  |  | 0
Reinsurance recoverable on unpaid losses | 0 |  |  |  | 0
Deferred commissions and other acquisition expenses | 2,052 |  |  |  | 6,987
Loan to related party | 0 |  |  |  | 0
Goodwill and intangible assets, net | 0 |  |  |  | 0
Restricted cash and cash equivalents and investments | 106,328 |  |  |  | 103,752
Other assets | 0 |  |  |  | 0
Total Assets - operating segments | 108,380 |  |  |  | 131,429
Corporate assets | 0 |  |  |  | 0
Total assets | $ 108,380 |  |  |  | $ 131,429
[1] | Calculated by dividing net loss and loss adjustment expenses by the sum of net premiums earned and other insurance revenue.
[2] | Calculated by dividing commission and other acquisition expenses by the sum of net premiums earned and other insurance revenue.
[3] | Calculated by dividing general and administrative expenses by the sum of net premiums earned and other insurance revenue.
[4] | Calculated by adding together net loss and loss adjustment expense ratio, commission and other acquisition expense ratio and general and administrative expense ratio.

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- Definition The carrying amount as of the balance sheet date due the entity from (a) agents and insureds, (b) uncollected premiums and (c) others, net of the allowance for doubtful accounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.(a),5) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 5 -Article 7 + Details
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- Definition Amount, after premiums ceded to other entities and premiums assumed by the entity, of premiums written. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 17 -Article 12 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 605 -Section 50 -Paragraph 1 -Subparagraph (b),(c) -URI http://asc.fasb.org/extlink&oid=6486672&loc=d3e27261-158547 + Details
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- Definition The unexpired portion of premiums ceded on policies in force as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Prepaid Reinsurance Premiums -URI http://asc.fasb.org/extlink&oid=6521719 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 340 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6485982&loc=d3e22818-158507 + Details
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- Definition Amount after valuation allowance recoverable including premium paid under reinsurance contracts. Examples include, but are not limited to, settled and unsettled claims, incurred but not reported losses, loss adjustment expense, premium paid, policy benefits and policy reserves. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 6 -Article 7 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 20 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6480758&loc=d3e6824-158387 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.(a),6) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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