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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016
Cash flows from operating activities: |  |
Net income | $ 27,299 | $ 37,901
Adjustments to reconcile net income to net cash provided by operating activities: |  |
Depreciation and amortization | 7,731 | 9,058
Share-based compensation | 16,510 | 14,519
Deferred income taxes | 6,717 | 0
Net gain on marketable securities | (90) | 0
Provision for doubtful accounts, net | 0 | 463
Net loss on sales of property and equipment | 9 | 0
Changes in operating assets and liabilities: |  |
Accounts receivable | 4,656 | 8,253
Prepaid expenses and other assets | (6,527) | (16,876)
Accounts payable | (119) | (725)
Accrued compensation and employee benefits | (28,672) | (29,030)
Other liabilities | (1,174) | (2,091)
Deferred revenue | 2,437 | 11,506
Net cash provided by operating activities | 28,777 | 32,978
Cash flows from investing activities: |  |
Purchases of property and equipment | (4,044) | (4,319)
Proceeds from sales of marketable securities | 8 | 0
Purchases of marketable securities | (1,943) | 0
Net cash used in investing activities | (5,979) | (4,319)
Cash flows from financing activities: |  |
Proceeds from revolving line of credit | 79,000 | 60,000
Payments on revolving line of credit | (20,000) | (10,000)
Payments on debt issuance costs | (240) | 0
Proceeds from issuance of treasury stock under employee stock plans | 693 | 3,663
Taxes paid related to net share settlement of equity awards | (38,867) | (35,598)
Dividends paid | 0 | (618)
Repurchases of common stock | (55,263) | (30,442)
Net cash used in financing activities | (34,677) | (12,995)
Effect of exchange rate changes on cash | 474 | (3,489)
Increase (decrease) in cash and cash equivalents | (11,405) | 12,175
Cash and cash equivalents, beginning of period | 105,618 | 75,926
Cash and cash equivalents, end of period | 94,213 | 88,101
Supplemental disclosures of cash flow information: |  |
Cash paid for income taxes, net of refunds | 2,221 | 7,463
Cash paid for interest | 7,087 | 5,851
Supplemental disclosures of non-cash investing and financing activities: |  |
Purchase of property and equipment included in accounts payable | $ 1,482 | $ 3,816

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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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3255-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -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=26873400&loc=d3e23780-122690 + Details
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- Definition The cash inflow associated with the aggregate amount received by the entity through sale or maturity of marketable securities (held-to-maturity or available-for-sale) during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=82896770&loc=d3e26853-111562 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3179-108585 + Details
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- Definition Amount of expense related to write-down of receivables to the amount expected to be collected. Includes, but is not limited to, accounts receivable and notes receivable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=82913815&loc=SL49130534-203044 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.5) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130543-203045 + Details
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- Definition Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements. + References Reference 1: 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=98514028&loc=d3e3291-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -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=26873400&loc=d3e23780-122690 + Details
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- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 + Details
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