v3.21.2

Segment Information - Net Premiums (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Segment Reporting, Revenue Reconciling Item [Line Items]
Net premiums written	$ 3,261	$ 4,090	$ 565	$ 14,462
Net premiums earned	$ 13,312	$ 21,308	$ 25,076	$ 52,523
% of Total Net premiums earned	100.00%	100.00%	100.00%	100.00%
Diversified Reinsurance | Operating Segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Net premiums written	$ 5,018	$ 8,553	$ 4,784	$ 18,925
Net premiums earned	$ 6,962	$ 11,527	$ 13,202	$ 24,058
% of Total Net premiums earned	52.30%	54.10%	52.60%	45.80%
Diversified Reinsurance | International | Operating Segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Net premiums written	$ 5,028	$ 8,498	$ 4,784	$ 18,870
Net premiums earned	$ 6,972	$ 11,472	$ 13,202	$ 24,003
% of Total Net premiums earned	52.40%	53.80%	52.60%	45.70%
Diversified Reinsurance | Other | Operating Segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Net premiums written	$ (10)	$ 55	$ 0	$ 55
Net premiums earned	$ (10)	$ 55	$ 0	$ 55
% of Total Net premiums earned	(0.10%)	0.30%	0.00%	0.10%
AmTrust Reinsurance | Operating Segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Net premiums written	$ (1,757)	$ (4,463)	$ (4,219)	$ (4,463)
Net premiums earned	$ 6,350	$ 9,781	$ 11,874	$ 28,465
% of Total Net premiums earned	47.70%	45.90%	47.40%	54.20%
AmTrust Reinsurance | Small Commercial Business | Operating Segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Net premiums written	$ (1,594)	$ (6,394)	$ (4,072)	$ (6,394)
Net premiums earned	$ (1,495)	$ (7,112)	$ (3,846)	$ (6,173)
% of Total Net premiums earned	(11.20%)	(33.40%)	(15.30%)	(11.80%)
AmTrust Reinsurance | Specialty Program | Operating Segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Net premiums written	$ (4)	$ 477	$ (29)	$ 477
Net premiums earned	$ 2	$ 426	$ (16)	$ 501
% of Total Net premiums earned	0.00%	2.00%	(0.10%)	1.00%
AmTrust Reinsurance | Specialty Risk and Extended Warranty | Operating Segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Net premiums written	$ (159)	$ 1,454	$ (118)	$ 1,454
Net premiums earned	$ 7,843	$ 16,467	$ 15,736	$ 34,137
% of Total Net premiums earned	58.90%	77.30%	62.80%	65.00%

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Premiums Earned, Net as a Percent of Total

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Amount, after premiums ceded to other entities and premiums assumed by the entity, of premiums earned.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 220
-Section S99
-Paragraph 1
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-Publisher FASB
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+ References

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