Condensed Consolidated Statements Of Cash Flows (unaudited) - USD ($) $ in Millions	3 Months Ended
	Apr. 01, 2022	Apr. 02, 2021
Cash flow from operating activities:
Net income	$ 110.3	$ 114.6
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation expense	10.0	10.3
Amortization expense	34.6	35.8
Deferred income taxes	(16.8)	0.4
Stock-based compensation	28.3	27.2
Other, net	16.7	(3.8)
(Increase) decrease in assets:
Accounts receivable, net	(34.6)	40.0
Inventories	(42.7)	(0.9)
Other current and non-current assets	(14.6)	2.8
Increase (decrease) in liabilities:
Accounts payable	7.8	14.5
Accrued compensation and benefits	(75.6)	(25.0)
Deferred revenue	73.3	9.2
Other current and non-current liabilities	56.3	3.1
Net cash provided by operating activities	153.0	228.2
Cash flow from investing activities:
Purchases of property and equipment	(14.5)	(10.6)
Other, net	1.1	1.4
Net cash used in investing activities	(13.4)	(9.2)
Cash flow from financing activities:
Issuance of common stock, net of tax withholdings		8.0
Issuance of common stock, net of tax withholdings	(2.4)
Repurchases of common stock	(104.7)	(40.0)
Proceeds from debt and revolving credit lines	118.8	180.8
Payments on debt and revolving credit lines	(118.8)	(335.7)
Other, net	(2.6)	0.0
Net cash used in financing activities	(109.7)	(186.9)
Effect of exchange rate changes on cash and cash equivalents	1.6	(5.2)
Net increase in cash and cash equivalents	31.5	26.9
Cash and cash equivalents - beginning of period	325.7	237.7
Cash and cash equivalents - end of period	$ 357.2	$ 264.6