CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	3 Months Ended
	Jan. 01, 2021	Jan. 03, 2020
Cash flows from operating activities:
Net earnings	$ 96.8	$ 88.9
Adjustments to reconcile net earnings to net cash provided by operating activities:
Share-based compensation expense	16.7	14.9
Depreciation	16.0	15.0
Amortization of intangible assets and inventory step-up	9.8	10.2
Deferred taxes	14.9	1.8
Gain on equity investments	(9.2)	(1.4)
Change in fair value of contingent consideration	0.2	8.8
Other, net	1.3	0.9
Changes in assets and liabilities, net of effects of acquisitions:
Trade and unbilled receivables	29.1	29.5
Inventories	(52.5)	(44.9)
Prepaid expenses and other assets	3.6	6.3
Accounts payable	8.0	(32.7)
Accrued liabilities and other long-term liabilities	(64.2)	(42.1)
Deferred revenues	70.9	57.4
Net cash provided by operating activities	141.4	112.6
Cash flows from investing activities:
Purchases of property, plant and equipment	(16.8)	(22.6)
Acquisitions, net of cash acquired	(0.5)	(1.7)
Purchase of equity and notes receivable in privately-held companies	(10.3)	0.0
Sale of equity investments	0.0	9.2
Net cash used in investing activities	(27.6)	(15.1)
Cash flows from financing activities:
Repurchases of common stock	0.0	(43.8)
Proceeds from issuance of common stock to employees	52.4	19.7
Tax withholdings on vesting of equity awards	(7.6)	(3.6)
Borrowings under credit facility agreement	0.0	11.0
Repayments under credit facility agreement	0.0	(11.0)
Net (repayments) borrowings under the credit facility agreements with maturities less than 90 days	(145.0)	132.0
Other	0.0	(0.9)
Net cash (used in) provided by financing activities	(100.2)	103.4
Effects of exchange rate changes on cash, cash equivalents, and restricted cash	(6.3)	(2.8)
Net increase in cash, cash equivalents, and restricted cash	7.3	198.1
Cash, cash equivalents, and restricted cash at beginning of period	785.8	544.1
Cash, cash equivalents, and restricted cash at end of period	$ 793.1	$ 742.2