Condensed Consolidated Statements Of Cash Flows (unaudited) - USD ($) $ in Millions		3 Months Ended
		Apr. 04, 2025	Mar. 29, 2024
Cash flow from operating activities:
Net income		$ 66.7	$ 57.2
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization		48.9	62.9
Deferred income taxes		(26.7)	(13.8)
Stock-based compensation		38.4	36.4
Other, net		4.0	(2.3)
(Increase) decrease in assets:
Accounts receivable, net		206.1	63.9
Inventories		3.4	8.8
Other current and non-current assets		35.8	8.1
Increase (decrease) in liabilities:
Accounts payable		(1.4)	26.5
Accrued compensation and benefits		(120.1)	(46.3)
Deferred revenue		(13.5)	60.8
Income taxes payable		(50.2)	(18.1)
Other current and non-current liabilities		(35.8)	(10.3)
Net cash provided by operating activities		155.6	233.8
Cash flow from investing activities:
Purchases of property and equipment		(6.6)	(6.8)
Other, net		(7.9)	3.3
Net cash used in investing activities		(14.5)	(3.5)
Cash flow from financing activities:
Issuance of common stock, net of tax withholdings		16.3	12.0
Repurchases of common stock		(627.4)	(175.0)
Proceeds from debt and revolving credit lines		114.7	521.2
Payments on debt and revolving credit lines		(114.7)	(555.8)
Other, net		0.0	(4.6)
Net cash used in financing activities		(611.1)	(202.2)
Effect of exchange rate changes on cash and cash equivalents		12.2	(5.4)
Net (decrease) increase in cash and cash equivalents		(457.8)	22.7
Cash and cash equivalents - beginning of period	[1]	747.8	238.9
Cash and cash equivalents - end of period	[1]	290.0	261.6
Supplemental cash flow disclosure:
Cash paid for income taxes, net		$ 48.3	$ 8.4

[1] (1) Includes $9.0 million, $6.5 million, and $9.1 million of cash and cash equivalents classified as held for sale as of January 3, 2025, March 29, 2024, and December 29, 2023.