Consolidated Statements of Comprehensive (Loss) Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Comprehensive (loss) income
Net (loss) income	$ (104.0)	$ (7.6)	$ (232.5)	$ 104.7
Other comprehensive income (loss)
Change in foreign currency translation, net of tax	37.5	(42.3)	31.1	(69.0)
Total other comprehensive income (loss)	37.5	(42.3)	31.1	(69.0)
Comprehensive (loss) income	(66.5)	(49.9)	(201.4)	35.7
Net (income) attributable to non-controlling interests	(0.2)	(0.4)	(0.2)	(1.6)
Comprehensive (loss) income attributable to Sirius Group	$ (66.7)	$ (50.3)	$ (201.6)	$ 34.1