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Consolidated Statements Of Cash Flows - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2015
Cash flows from operating activities: |  |  |
Net income (loss) | $ 6,239 | $ (54,465) | $ 47,557
Adjustments to reconcile net income (loss) to net cash provided by operating activities: |  |  |
Stock-based compensation | 76,708 | 65,996 | 50,182
Depreciation and amortization | 86,742 | 86,554 | 84,433
Benefit from deferred income taxes | (28,289) | (44,182) | (49,361)
Excess tax benefits realized from stock-based awards | (644) | (93) | (24)
Pension settlement loss | 0 | 0 | 66,332
Other non-cash costs, net | 2,272 | 966 | 157
Changes in operating assets and liabilities, excluding the effects of acquisitions: |  |  |
Accounts receivable | 12,832 | 52,617 | 29,723
Accounts payable and accrued expenses | 20,315 | (14,185) | 31,134
Accrued compensation and benefits | (34,846) | 60,944 | (56,950)
Deferred revenue | 5,808 | 16,232 | 8,852
Accrued income taxes, net of income tax receivable | (798) | 6,749 | (3,536)
Other current assets and prepaid expenses | 721 | 4,591 | (10,716)
Other noncurrent assets and liabilities | (12,470) | 1,444 | (17,880)
Net cash provided by operating activities | 134,590 | 183,168 | 179,903
Cash flows from investing activities: |  |  |
Additions to property and equipment | (25,444) | (26,189) | (30,628)
Purchases of short- and long-term marketable securities | (19,726) | (44,605) | 0
Proceeds from maturities of short- and long-term marketable securities | 18,785 | 0 | 0
Acquisitions of businesses, net of cash acquired | (4,960) | (165,802) | (98,411)
Purchases of investments | 0 | (560) | (11,000)
Proceeds from sales of investments | 15,218 | 0 | 0
Net cash used by investing activities | (16,127) | (237,156) | (140,039)
Cash flows from financing activities: |  |  |
Borrowings under credit facility and senior notes | 150,000 | 670,000 | 185,000
Repayments of borrowings under credit facility | (190,000) | (580,000) | (128,750)
Repurchases of common stock | (50,991) | 0 | (64,940)
Proceeds from issuance of common stock | 10,778 | 21 | 41
Excess tax benefits realized from stock-based awards | 644 | 93 | 24
Payments of withholding taxes in connection with vesting of stock-based awards | (26,654) | (20,939) | (29,207)
Credit facility origination costs | (184) | (6,855) | 0
Contingent consideration | (11,054) | (10,621) | (4,323)
Net cash provided (used) by financing activities | (117,461) | 51,699 | (42,155)
Effect of exchange rate changes on cash and cash equivalents | 1,066 | 6,807 | (17,946)
Net increase (decrease) in cash and cash equivalents | 2,068 | 4,518 | (20,237)
Cash and cash equivalents, beginning of year | 277,935 | 273,417 | 293,654
Cash and cash equivalents, end of year | 280,003 | 277,935 | 273,417
Supplemental disclosure of non-cash financing activities: |  |  |
Fair value of contingent consideration recorded for acquisitions | $ 0 | $ 16,900 | $ 3,800

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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 -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3213-108585 + Details
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- Definition The cash inflow from the additional capital contribution to the entity. + 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 (a) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3255-108585 + 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://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 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 -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3179-108585 + 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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- References No definition available. + Details
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