Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Income Taxes
Bermuda statutory income tax rate	0.00%		0.00%
Income tax benefits - Bermuda	$ 0	$ 0	$ 0	$ 0
Net operating loss carryforwards - Bermuda	0	0	0	0
Income tax expense	$ 5,875	$ (374)	$ 3,696	$ (391)

Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.

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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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