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Discontinued Operations - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 27, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss from discontinued operations, net of income tax	$ 0	$ (22,541)
Discontinued Operations, Disposed of by Sale \| Renewal Rights Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss from discontinued operations, net of income tax		(22,541)
Discontinued Operations, Disposed of by Sale \| Maiden US Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds of sale			$ 286,375
Loss from discontinued operations		$ 16,714
Discontinued Operations, Disposed of by Sale \| Maiden Reinsurance North America, Inc. Sale \| Maximum
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Reinsurance payable			$ 25,000