Consolidated Statements of Cash Flows - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Cash flows from operating activities:
Net income		$ 287.9	$ 310.2	$ 471.0
Adjustments to reconcile net income to net cash provided by operating activities:
Share-based compensation expense		290.8	279.4	209.3
Depreciation, amortization, and accretion		156.9	194.7	217.7
Deferred income taxes		(222.0)	(262.1)	(222.5)
Provision for inventory excess and obsolescence		33.3	109.8	36.9
Operating lease assets expense		43.1	40.7	40.3
Gain on divestiture		0.0	0.0	(45.8)
Loss (gain) on privately-held investments, net		(0.7)	97.3	(20.4)
Loss from equity method investment		9.6	9.6	4.8
Impairment of assets		5.5	28.0	5.1
Loss (gain) on publicly-traded investments and others		(7.5)	(4.8)	12.7
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable, net		(119.9)	183.4	(232.0)
Inventory		82.8	(484.4)	(394.2)
Prepaid expenses and other assets		103.8	182.2	(299.0)
Accounts payable		(31.6)	(51.9)	67.4
Accrued compensation		70.3	(13.2)	(23.1)
Income taxes payable		(68.2)	(99.6)	21.1
Other accrued liabilities		(64.1)	(7.5)	(3.3)
Deferred revenue		218.1	361.0	251.6
Net cash provided by operating activities		788.1	872.8	97.6
Cash flows from investing activities:
Purchases of property and equipment		(115.5)	(159.4)	(105.1)
Proceeds from divestiture, net		0.0	0.0	89.1
Purchases of available-for-sale debt securities		(600.0)	(155.0)	(104.1)
Proceeds from sales of available-for-sale debt securities		59.0	31.9	118.2
Proceeds from maturities and redemptions of available-for-sale debt securities		239.2	217.3	390.3
Purchases of equity securities		(9.2)	(11.6)	(16.5)
Proceeds from sales of equity securities		6.2	15.7	47.7
Proceeds from sale of equity method investment		30.0	0.0	0.0
Subsequent payments related to acquisitions in prior years		0.0	(0.7)	(14.6)
Funding of loan receivable and other		0.0	(5.8)	2.5
Net cash provided by (used in) investing activities		(390.3)	(67.6)	407.5
Cash flows from financing activities:
Repurchase and retirement of common stock	[1]	0.0	(385.0)	(299.7)
Shares repurchased and retired for tax withholding on vesting of restricted stock	[1]	(17.9)	(12.6)	(15.5)
Proceeds from issuance of common stock		73.4	61.9	57.2
Payment of dividends		(288.6)	(280.8)	(270.4)
Payment of debt issuance costs and other		0.4	(2.3)	0.0
Net cash used in financing activities		(232.7)	(618.8)	(528.4)
Effect of foreign currency exchange rates on cash, cash equivalents, and restricted cash		(13.6)	0.2	(21.7)
Net increase (decrease) in cash, cash equivalents, and restricted cash		151.5	186.6	(45.0)
Cash, cash equivalents, and restricted cash at beginning of period		1,084.3	897.7	942.7
Cash, cash equivalents, and restricted cash at end of period		1,235.8	1,084.3	897.7
Supplemental disclosures of cash flow information:
Cash paid for interest		82.6	81.5	67.3
Cash paid for income taxes, net		284.1	400.9	253.2
Non-cash investing activity:
Equity method investment		$ 0.0	$ 0.0	$ 40.3

[1] The prior period amounts have been reclassified to conform to the current period presentation.