v2.4.0.8

Segments - Net Income (Loss) and Total Assets (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Jun. 30, 2013 | Jun. 30, 2012 | Jun. 30, 2013 Segment | Jun. 30, 2012 | Dec. 31, 2011 | Dec. 31, 2012
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |
Number of operating segments |  |  |  |  | 3 |  |  |  |  |
Net Income (Loss) [Abstract] |  |  |  |  |  |  |  |  |  |
Net premiums written | $ 497,949 |  | $ 411,960 |  | $ 1,187,008 |  | $ 1,002,793 |  |  |
Net premiums earned | 513,273 |  | 437,116 |  | 1,001,715 |  | 875,612 |  |  |
Other insurance revenue | 2,780 |  | 2,274 |  | 7,995 |  | 7,028 |  |  |
Net loss and loss adjustment expenses | (343,347) |  | (300,435) |  | (678,242) |  | (588,352) |  |  |
Commission and other acquisition expenses | (143,572) |  | (114,663) |  | (275,902) |  | (246,921) |  |  |
General and administrative expenses | (11,837) |  | (12,869) |  | (23,298) |  | (23,869) |  |  |
Underwriting income | 17,297 |  | 11,423 |  | 32,268 |  | 23,498 |  |  |
Reconciliation to net loss attributable to Maiden shareholders [Abstract] |  |  |  |  |  |  |  |  |  |
Net investment income and realized and unrealized gains (losses) on investment | 20,692 |  | 17,146 |  | 45,954 |  | 36,948 |  |  |
Amortization of intangible assets | (945) |  | (1,091) |  | (1,890) |  | (2,181) |  |  |
Foreign exchange and other (gains) losses | 1,049 |  | (874) |  | 2,596 |  | 105 |  | 105 |
Interest and amortization expenses | (9,570) |  | (9,568) |  | (19,140) |  | (17,246) |  |  |
Other general and administrative expenses | (4,980) |  | (2,339) |  | (7,614) |  | (5,170) |  |  |
Income tax expense | (212) |  | (91) |  | (736) |  | (970) |  |  |
Net income attributable to noncontrolling interest | (32) |  | (65) |  | (59) |  | (66) |  |  |
Dividends on preference shares | (3,094) |  | 0 |  | (6,188) |  | 0 |  |  |
Net income attributable to Maiden common shareholders | 20,205 |  | 14,541 |  | 45,191 |  | 34,918 |  |  |
Net loss and loss expense ratio | 66.50% | [1] | 68.40% | [1] | 67.20% | [1] | 66.70% | [1] |  |
Acquisition cost ratio | 27.80% | [2] | 26.10% | [2] | 27.30% | [2] | 28.00% | [2] |  |
General and administrative expense ratio | 3.30% | [3] | 3.40% | [3] | 3.10% | [3] | 3.20% | [3] |  |
Combined ratio | 97.60% | [4] | 97.90% | [4] | 97.60% | [4] | 97.90% | [4] |  |
Assets [Abstract] |  |  |  |  |  |  |  |  |  |
Reinsurance balance receivable, net | 685,095 |  |  |  | 685,095 |  |  |  |  | 522,614
Funds withheld | 43,706 |  |  |  | 43,706 |  |  |  |  | 42,712
Prepaid reinsurance premiums | 48,944 |  |  |  | 48,944 |  |  |  |  | 38,725
Reinsurance recoverable on unpaid losses | 101,143 |  |  |  | 101,143 |  |  |  |  | 110,858
Deferred commissions and other acquisition expenses | 314,839 |  |  |  | 314,839 |  |  |  |  | 270,669
Loan to related party | 167,975 |  |  |  | 167,975 |  |  |  |  | 167,975
Goodwill and intangible assets, net | 92,503 |  |  |  | 92,503 |  |  |  |  | 94,393
Restricted cash and cash equivalents and investments | 2,156,970 |  |  |  | 2,156,970 |  |  |  |  | 2,167,318
Other assets | 6,485 |  |  |  | 6,485 |  |  |  |  | 5,864
Total Assets - Operating Segments | 3,617,660 |  |  |  | 3,617,660 |  |  |  |  | 3,421,128
Corporate assets | 788,190 |  | 717,035 |  | 788,190 |  | 717,035 |  |  |
Total assets | 4,405,850 |  |  |  | 4,405,850 |  |  |  |  | 4,138,163
Diversified Reinsurance Segment [Member] |  |  |  |  |  |  |  |  |  |
Net Income (Loss) [Abstract] |  |  |  |  |  |  |  |  |  |
Net premiums written | 134,934 |  | 143,981 |  | 402,544 |  | 432,277 |  |  |
Net premiums earned | 178,336 |  | 199,130 |  | 374,585 |  | 403,593 |  |  |
Other insurance revenue | 2,780 |  | 2,274 |  | 7,995 |  | 7,028 |  |  |
Net loss and loss adjustment expenses | (120,837) |  | (138,420) |  | (261,600) |  | (270,812) |  |  |
Commission and other acquisition expenses | (44,438) |  | (47,945) |  | (89,220) |  | (112,094) |  |  |
General and administrative expenses | (11,153) |  | (12,145) |  | (21,951) |  | (22,593) |  |  |
Underwriting income | 4,688 |  | 2,894 |  | 9,809 |  | 5,122 |  |  |
Reconciliation to net loss attributable to Maiden shareholders [Abstract] |  |  |  |  |  |  |  |  |  |
Net loss and loss expense ratio | 66.70% | [1] | 68.70% | [1] | 68.40% | [1] | 66.00% | [1] |  |
Acquisition cost ratio | 24.50% | [2] | 23.80% | [2] | 23.30% | [2] | 27.30% | [2] |  |
General and administrative expense ratio | 6.20% | [3] | 6.10% | [3] | 5.70% | [3] | 5.50% | [3] |  |
Combined ratio | 97.40% | [4] | 98.60% | [4] | 97.40% | [4] | 98.80% | [4] |  |
Assets [Abstract] |  |  |  |  |  |  |  |  |  |
Reinsurance balance receivable, net | 304,635 |  |  |  | 304,635 |  |  |  |  | 260,161
Funds withheld | 43,706 |  |  |  | 43,706 |  |  |  |  | 42,712
Prepaid reinsurance premiums | 48,944 |  |  |  | 48,944 |  |  |  |  | 38,725
Reinsurance recoverable on unpaid losses | 101,143 |  |  |  | 101,143 |  |  |  |  | 110,858
Deferred commissions and other acquisition expenses | 84,080 |  |  |  | 84,080 |  |  |  |  | 83,287
Loan to related party | 0 |  |  |  | 0 |  |  |  |  | 0
Goodwill and intangible assets, net | 92,503 |  |  |  | 92,503 |  |  |  |  | 94,393
Restricted cash and cash equivalents and investments | 1,096,736 |  |  |  | 1,096,736 |  |  |  |  | 1,219,454
Other assets | 6,485 |  |  |  | 6,485 |  |  |  |  | 5,864
Total Assets - Operating Segments | 1,778,232 |  |  |  | 1,778,232 |  |  |  |  | 1,855,454
Corporate assets | 0 |  |  |  | 0 |  |  |  |  | 0
Total assets | 1,778,232 |  |  |  | 1,778,232 |  |  |  |  | 1,855,454
AmTrust Quota Share Reinsurance Segment [Member] |  |  |  |  |  |  |  |  |  |
Net Income (Loss) [Abstract] |  |  |  |  |  |  |  |  |  |
Net premiums written | 290,578 |  | 195,629 |  | 635,396 |  | 421,644 |  |  |
Net premiums earned | 261,404 |  | 167,816 |  | 481,692 |  | 335,695 |  |  |
Other insurance revenue | 0 |  | 0 |  | 0 |  | 0 |  |  |
Net loss and loss adjustment expenses | (172,925) |  | (116,755) |  | (318,570) |  | (229,611) |  |  |
Commission and other acquisition expenses | (76,198) |  | (44,590) |  | (141,330) |  | (91,759) |  |  |
General and administrative expenses | (505) |  | (530) |  | (994) |  | (909) |  |  |
Underwriting income | 11,776 |  | 5,941 |  | 20,798 |  | 13,416 |  |  |
Reconciliation to net loss attributable to Maiden shareholders [Abstract] |  |  |  |  |  |  |  |  |  |
Net loss and loss expense ratio | 66.20% | [1] | 69.60% | [1] | 66.10% | [1] | 68.40% | [1] |  |
Acquisition cost ratio | 29.10% | [2] | 26.60% | [2] | 29.30% | [2] | 27.30% | [2] |  |
General and administrative expense ratio | 0.20% | [3] | 0.30% | [3] | 0.30% | [3] | 0.30% | [3] |  |
Combined ratio | 95.50% | [4] | 96.50% | [4] | 95.70% | [4] | 96.00% | [4] |  |
Assets [Abstract] |  |  |  |  |  |  |  |  |  |
Reinsurance balance receivable, net | 284,286 |  |  |  | 284,286 |  |  |  |  | 170,983
Funds withheld | 0 |  |  |  | 0 |  |  |  |  | 0
Prepaid reinsurance premiums | 0 |  |  |  | 0 |  |  |  |  | 0
Reinsurance recoverable on unpaid losses | 0 |  |  |  | 0 |  |  |  |  | 0
Deferred commissions and other acquisition expenses | 195,848 |  |  |  | 195,848 |  |  |  |  | 153,530
Loan to related party | 167,975 |  |  |  | 167,975 |  |  |  |  | 167,975
Goodwill and intangible assets, net | 0 |  |  |  | 0 |  |  |  |  | 0
Restricted cash and cash equivalents and investments | 964,770 |  |  |  | 964,770 |  |  |  |  | 857,013
Other assets | 0 |  |  |  | 0 |  |  |  |  | 0
Total Assets - Operating Segments | 1,612,879 |  |  |  | 1,612,879 |  |  |  |  | 1,349,501
Corporate assets | 0 |  |  |  | 0 |  |  |  |  | 0
Total assets | 1,612,879 |  |  |  | 1,612,879 |  |  |  |  | 1,349,501
NGHC Quota Share Segment [Member] |  |  |  |  |  |  |  |  |  |
Net Income (Loss) [Abstract] |  |  |  |  |  |  |  |  |  |
Net premiums written | 72,437 |  | 72,350 |  | 149,068 |  | 148,872 |  |  |
Net premiums earned | 73,533 |  | 70,170 |  | 145,438 |  | 136,324 |  |  |
Other insurance revenue | 0 |  | 0 |  | 0 |  | 0 |  |  |
Net loss and loss adjustment expenses | (49,585) |  | (45,260) |  | (98,072) |  | (87,929) |  |  |
Commission and other acquisition expenses | (22,936) |  | (22,128) |  | (45,352) |  | (43,068) |  |  |
General and administrative expenses | (179) |  | (194) |  | (353) |  | (367) |  |  |
Underwriting income | 833 |  | 2,588 |  | 1,661 |  | 4,960 |  |  |
Reconciliation to net loss attributable to Maiden shareholders [Abstract] |  |  |  |  |  |  |  |  |  |
Net loss and loss expense ratio | 67.40% | [1] | 64.50% | [1] | 67.40% | [1] | 64.50% | [1] |  |
Acquisition cost ratio | 31.20% | [2] | 31.50% | [2] | 31.20% | [2] | 31.60% | [2] |  |
General and administrative expense ratio | 0.30% | [3] | 0.30% | [3] | 0.30% | [3] | 0.30% | [3] |  |
Combined ratio | 98.90% | [4] | 96.30% | [4] | 98.90% | [4] | 96.40% | [4] |  |
Assets [Abstract] |  |  |  |  |  |  |  |  |  |
Reinsurance balance receivable, net | 96,174 |  |  |  | 96,174 |  |  |  |  | 91,470
Funds withheld | 0 |  |  |  | 0 |  |  |  |  | 0
Prepaid reinsurance premiums | 0 |  |  |  | 0 |  |  |  |  | 0
Reinsurance recoverable on unpaid losses | 0 |  |  |  | 0 |  |  |  |  | 0
Deferred commissions and other acquisition expenses | 34,911 |  |  |  | 34,911 |  |  |  |  | 33,852
Loan to related party | 0 |  |  |  | 0 |  |  |  |  | 0
Goodwill and intangible assets, net | 0 |  |  |  | 0 |  |  |  |  | 0
Restricted cash and cash equivalents and investments | 95,464 |  |  |  | 95,464 |  |  |  |  | 90,851
Other assets | 0 |  |  |  | 0 |  |  |  |  | 0
Total Assets - Operating Segments | 226,549 |  |  |  | 226,549 |  |  |  |  | 216,173
Corporate assets | 0 |  |  |  | 0 |  |  |  |  | 0
Total assets | $ 226,549 |  |  |  | $ 226,549 |  |  |  |  | $ 216,173
[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 Carrying amount of finite-lived intangible assets, indefinite-lived intangible assets and goodwill. Goodwill is an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Intangible assets are assets, not including financial assets, lacking physical substance. + References No definition available. + Details
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- Definition For an unclassified balance sheet, reflects the carrying amount of unpaid loan amounts due from related parties at the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(e)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Subparagraph e -Article 9 + Details
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- Definition Amount of Net Income (Loss) attributable to noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=18733093&loc=SL4573702-111684 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4J -URI http://asc.fasb.org/extlink&oid=31814832&loc=SL4591551-111686 + Details
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- Definition Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1377-109256 + Details
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- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. + References No definition available. + Details
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- Definition The sum of expenses not otherwise specified in the taxonomy for managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.4) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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- Definition Reflects the sum of all other revenue and income recognized by the entity in the period not otherwise specified in the income statement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.4) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 4 -Article 7 + Details
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- Definition Amount, after effects of policies assumed or ceded, of expense related to the provision for policy benefits and costs incurred. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.5) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 5 -Article 7 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6480758&loc=d3e6811-158387 + Details
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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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