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Unaudited Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Thousands | 6 Months Ended
--- | ---
Apr. 30, 2021 | Apr. 30, 2020
Cash flow from operating activities: |  |
Net income attributed to Synopsys | $ 357,423 | $ 213,981
Adjustments to reconcile net income to net cash provided by operating activities: |  |
Amortization and depreciation | 100,066 | 105,078
Reduction of operating lease right-of-use assets | 42,711 | 39,513
Amortization of capitalized costs to obtain revenue contracts | 30,475 | 28,279
Stock-based compensation | 163,368 | 108,318
Allowance for doubtful accounts | 10,051 | 9,982
Deferred income taxes | (16,461) | (37,681)
Other non-cash | (401) | 97
Net changes in operating assets and liabilities, net of acquired assets and liabilities: |  |
Accounts receivable | 157,637 | (84,533)
Inventories | (38,305) | (25,237)
Prepaid and other current assets | (45,972) | (5,889)
Other long-term assets | (97,519) | (38,378)
Accounts payable and accrued liabilities | (96,798) | (78,989)
Operating lease liabilities | (41,105) | (32,432)
Income taxes | (8,386) | 1,270
Deferred revenue | 183,512 | 186,360
Net cash provided by operating activities | 700,296 | 389,739
Cash flows from investing activities: |  |
Purchases of long-term investments | 0 | (2,762)
Purchases of property and equipment | (44,060) | (80,663)
Cash paid for acquisitions, net of cash acquired | (74,626) | (151,178)
Capitalization of software development costs | (1,264) | (2,130)
Other | (800) | 0
Net cash used in investing activities | (120,750) | (236,733)
Cash flows from financing activities: |  |
Proceeds from credit facilities | 0 | 276,490
Repayment of debt | (13,194) | (178,437)
Issuances of common stock | 103,203 | 98,361
Payments for taxes related to net share settlement of equity awards | (54,664) | (17,105)
Purchase of equity forward contract | 0 | (20,000)
Purchases of treasury stock | (398,082) | (180,000)
Other | (1,000) | 0
Net cash used in financing activities | (363,737) | (20,691)
Effect of exchange rate changes on cash, cash equivalents and restricted cash | 6,457 | (4,424)
Net change in cash, cash equivalents and restricted cash | 222,266 | 127,891
Cash, cash equivalents and restricted cash, beginning of year | 1,237,970 | 730,527
Cash, cash equivalents and restricted cash, end of period | $ 1,460,236 | $ 858,418

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- Definition Amount of cash outflow to satisfy grantee's tax withholding obligation for award under share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3291-108585 + Details
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- Definition The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3213-108585 + Details
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- Definition Amount of cash outflow to acquire investments classified as other. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3213-108585 + Details
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- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3213-108585 + Details
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- Definition Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(f)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 + Details
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- Definition Amount of cash inflow (outflow) from financing activities classified as other. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04(a)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24072-122690 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3291-108585 + Details
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- Definition The cash inflow from the issuance of an equity stock that has been previously reacquired by the entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585 + Details
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- Definition Amount of expense (reversal of expense) for expected credit loss on accounts receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(5)) -URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227 + Details
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- Definition The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3291-108585 + Details
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- Definition Amount of noncash expense for share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 + Details
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