Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 17,580.4	$ 13,912.7	$ 10,100.0
Other comprehensive income (loss) before reclassifications	168.0	8.6	124.2
Amounts reclassified from accumulated other comprehensive income (loss)	(25.9)	(23.7)	(139.3)
Total other comprehensive income (loss)	142.1	(15.1)	(15.1)
Ending balance	16,409.6	17,580.4	13,912.7
Foreign Currency Translation Adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	1.1	(25.0)	(13.6)
Other comprehensive income (loss) before reclassifications	8.6	26.1	(11.4)
Amounts reclassified from accumulated other comprehensive income (loss)	0.0
Total other comprehensive income (loss)	8.6	26.1	(11.4)
Ending balance	9.7	1.1	(25.0)
On Available-For-Sale Debt Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	9.6	(0.1)	(0.5)
Other comprehensive income (loss) before reclassifications	(4.4)	9.7	(3.3)
Amounts reclassified from accumulated other comprehensive income (loss)	1.9		3.7
Total other comprehensive income (loss)	(2.5)	9.7	0.4
Ending balance	7.1	9.6	(0.1)
On Foreign Currency Forward Contracts
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(25.0)	25.9	30.0
Other comprehensive income (loss) before reclassifications	163.8	(27.2)	138.9
Amounts reclassified from accumulated other comprehensive income (loss)	(27.8)	(23.7)	(143.0)
Total other comprehensive income (loss)	136.0	(50.9)	(4.1)
Ending balance	111.0	(25.0)	25.9
Total
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(14.3)	0.8	15.9
Total other comprehensive income (loss)	142.1	(15.1)	(15.1)
Ending balance	$ 127.8	$ (14.3)	$ 0.8