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Income Taxes - Schedule of Effective Tax Rates (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Tax Disclosure [Abstract]
Income tax benefit at combined statutory rates, Amount	$ 509	$ 7,279	$ 3,548	$ 29,201
Unrealized investment gains not taxable, Amount		420
Realized and unrealized investment gains (losses) not taxable, Amount			1,367	(239)
Increase of valuation allowance, Amount	(4,270)	(23,707)	(14,248)	(23,706)
Changes to tax reserves, Amount	(215)	(181)	1,234	(4,978)
Withholding taxes resulting from management's decision to no longer indefinitely reinvest the historical earnings of certain foreign subsidiaries, Amount		(186)	(547)	(18,661)
Reduction in tax benefits resulting from the vesting of share-based compensation	(4)	(38)	709	33
Other non-deductible/non-taxable items, Amount	(422)	(2,936)	(1,479)	(6,256)
Income tax expense	$ (4,402)	$ (19,349)	$ (9,416)	$ (24,606)
Income tax benefit at combined statutory rates, Rate	26.20%	26.20%	26.20%	26.20%
Unrealized investment gains not taxable, Rate		1.50%
Realized and unrealized investment gains (losses) not taxable, Rate			10.10%	(0.20%)
Increase of valuation allowance, Rate	(219.80%)	(85.30%)	(105.20%)	(21.30%)
Changes to tax reserves, Rate	(11.10%)	(0.70%)	9.10%	(4.50%)
Withholding taxes resulting from management's decision to no longer indefinitely reinvest the historical earnings of certain foreign subsidiaries, Rate		(0.70%)	(4.00%)	(16.70%)
Reduction in tax benefits resulting from the vesting of share-based compensation	(0.20%)	(0.10%)	5.20%
Other non-deductible/non-taxable items, Rate	(21.70%)	(10.50%)	(10.90%)	(5.60%)
Income tax expense	(226.60%)	(69.60%)	(69.50%)	(22.10%)

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