Unaudited Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Jul. 31, 2022	Jul. 31, 2021
Cash flow from operating activities:
Net income attributed to Synopsys	$ 831,094	$ 556,069
Adjustments to reconcile net income to net cash provided by operating activities:
Amortization and depreciation	169,708	151,274
Reduction of operating lease right-of-use assets	65,980	64,920
Amortization of capitalized costs to obtain revenue contracts	54,438	46,973
Stock-based compensation	333,437	248,530
Allowance for credit losses	(4,516)	13,813
Deferred income taxes	5,843	(33,116)
Other non-cash	6,141	2,936
Net changes in operating assets and liabilities, net of acquired assets and liabilities:
Accounts receivable	(121,786)	188,996
Inventories	118	(51,448)
Prepaid and other current assets	(56,075)	(62,201)
Other long-term assets	(20,058)	(117,922)
Accounts payable and accrued liabilities	(46,356)	51,991
Operating lease liabilities	(66,187)	(61,666)
Income taxes	(60,739)	(29,414)
Deferred revenue	254,353	152,328
Net cash provided by operating activities	1,345,395	1,122,063
Cash flows from investing activities:
Proceeds from sales and maturities of short-term investments	70,847	1,128
Purchases of short-term investments	(73,330)	(146,082)
Proceeds from sales of long-term investments	582	0
Purchases of long-term investments	(7,000)	(7,591)
Purchases of property and equipment	(102,934)	(66,957)
Cash paid for acquisitions, net of cash acquired	(416,323)	(164,053)
Capitalization of software development costs	(1,970)	(1,517)
Other	(1,200)	(800)
Net cash used in investing activities	(531,328)	(385,872)
Cash flows from financing activities:
Repayment of debt	(76,838)	(21,637)
Issuances of common stock	161,416	113,976
Payments for taxes related to net share settlement of equity awards	(149,130)	(104,291)
Purchase of equity forward contract	(40,000)	(35,000)
Purchases of treasury stock	(717,266)	(538,082)
Other	(3,413)	(4,375)
Net cash used in financing activities	(825,231)	(589,409)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(38,155)	2,985
Net change in cash, cash equivalents and restricted cash	(49,319)	149,767
Cash, cash equivalents and restricted cash, beginning of year	1,435,183	1,237,970
Cash, cash equivalents and restricted cash, end of period	$ 1,385,864	$ 1,387,737