Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Statement of Comprehensive Income [Abstract]
Net income	$ 471.0	$ 252.7	$ 257.8
Available-for-sale debt securities:
Change in net unrealized gains and losses	(6.5)	(5.0)	5.7
Net realized losses (gains) reclassified into net income	0.4	(1.2)	(1.3)
Net change on available-for-sale debt securities	(6.1)	(6.2)	4.4
Cash flow hedges:
Change in net unrealized gains and losses	15.7	(13.5)	54.4
Net realized losses (gains) reclassified into net income	26.8	(25.2)	7.6
Net change on cash flow hedges	42.5	(38.7)	62.0
Change in foreign currency translation adjustments	(30.1)	(12.8)	7.7
Other comprehensive income (loss), net	6.3	(57.7)	74.1
Comprehensive income	$ 477.3	$ 195.0	$ 331.9