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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 6 Months Ended
--- | ---
Mar. 31, 2018 | Apr. 01, 2017
Statement of Cash Flows [Abstract] |  |  |
Net (loss)/income | $ (33,215) | $ 50,066 |
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Depreciation and amortization | 9,212 | 7,775 |
Equity-based compensation and employee benefits | 5,331 | 6,680 |
(Excess tax benefits)/Reversal of excess tax benefits from stock-based compensation | (50) | 742 |
Adjustment for doubtful accounts | 678 | (191) |
Adjustment for inventory valuation | 2,822 | 3,445 |
Deferred income taxes | 22,823 | 4,872 |
Gain on disposal of property, plant and equipment | (425) | (1,050) |
Unrealized foreign currency translation | 6,046 | (4,789) |
Share of results of equity-method investee | 23 | 0 |
Changes in operating assets and liabilities: |  |  |
Accounts and other receivable | (26,328) | (39,094) |
Inventory | 157 | (17,556) |
Prepaid expenses and other current assets | 160 | (1,141) |
Accounts payable, accrued expenses and other current liabilities | (9,793) | 35,331 |
Income taxes payable | 79,908 | (3,821) |
Other, net | (276) | 1,709 |
CASH FLOWS FROM OPERATING ACTIVITIES: |  |  |
Net cash provided by operating activities | 57,073 | 42,978 |
CASH FLOWS FROM INVESTING ACTIVITIES: |  |  |
Purchases of property, plant and equipment | (11,700) | (17,439) |
Purchase of equity investments | 0 | (1,312) |
Proceeds from sales of property, plant and equipment | 244 | 1,352 |
Purchase of short-term investments | (325,000) | (139,000) |
Maturity of short-term investments | 253,000 | 124,000 |
Net cash used in investing activities | (83,456) | (32,399) |
CASH FLOWS FROM FINANCING ACTIVITIES: |  |  |
Payment on debts | (346) | (290) |
Proceeds from exercise of common stock options | 55 | 389 |
Repurchase of common stock | (23,950) | 0 |
Reversal of excess tax benefits from stock-based compensation | 0 | (742) |
Net cash used in financing activities | (24,241) | (643) |
Effect of exchange rate changes on cash, cash equivalents and restricted cash | (1,630) | 1,360 |
Changes in cash, cash equivalents and restricted cash | (52,254) | 11,296 |
Cash, cash equivalents and restricted cash at beginning of period | 392,940 | 423,907 | [1]
Cash, cash equivalents and restricted cash at end of period | 340,686 | 435,203 |
CASH PAID FOR: |  |  |
Interest | 536 | 523 |
Income taxes | $ 10,728 | $ 5,454 |
[1] | * Certain time deposits as at October 1, 2016 have been corrected from cash equivalents to short-term investments for comparative purposes.

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- Definition The cash outflow associated with the purchase of all investments (debt, security, other) during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=66902209&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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3213-108585 + Details
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- Definition The cash inflow associated with the sale, maturity and collection of all investments such as debt, security and so forth during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3179-108585 + Details
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- Definition The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3179-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 + Details
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- Definition The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3255-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition The cash outflow to repay long-term debt that is not secured by collateral. Excludes repayments of tax exempt unsecured debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3291-108585 + Details
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