v3.19.2

Related Party Transactions - Schedule of AmTrust Quota Share Arrangement (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Related Party Transaction [Line Items]
Gross premiums written	$ 2,117	$ 521,526	$ (559,022)	$ 1,144,854
Net premiums earned	133,986	504,388	317,088	1,021,201
Net loss and loss adjustment expenses (loss and LAE)	(121,561)	(370,001)	(274,250)	(723,207)
Commission expenses	(49,656)	(162,780)	(119,273)	(329,408)
Quota Share Reinsurance Agreements | AmTrust Financial Services, Inc.
Related Party Transaction [Line Items]
Gross premiums written	(9,127)	491,485
Net premiums earned	111,833	477,202	269,963	981,001
Net loss and loss adjustment expenses (loss and LAE)	(109,091)	(351,954)	(247,035)	(696,483)
Commission expenses	$ (40,111)	$ (148,500)	$ (98,490)	$ (304,350)

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