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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions | 12 Months Ended
--- | ---
Jan. 31, 2017 | Jan. 31, 2016 | Jan. 31, 2015
Operating Activities |  |  |  |
Net (loss) income |  | $ (582.1) | $ (330.5) | $ 81.8
Adjustments to reconcile net (loss) income to net cash provided by operating activities: |  |  |  |
Depreciation, amortization, and accretion |  | 139.2 | 145.8 | 145.9
Stock-based compensation expense |  | 221.8 | 197.2 | 165.6
Deferred income taxes |  | (38.8) | 235.9 | (18.8)
Restructuring charges and other facility exit costs, net |  | 80.5 | 0.0 | 3.1
Other operating activities |  | (7.7) | (25.0) | 16.2
Changes in operating assets and liabilities, net of business combinations: |  |  |  |
Accounts receivable |  | 201.5 | (195.5) | (17.3)
Prepaid expenses and other current assets |  | (13.5) | (2.8) | 6.8
Accounts payable and accrued liabilities |  | 2.7 | 24.9 | 130.8
Deferred revenue |  | 267.0 | 360.5 | 245.2
Accrued income taxes |  | (100.9) | 3.5 | (50.7)
Net cash provided by operating activities (1) | [1] | 169.7 | 414.0 | 708.6
Investing Activities |  |  |  |
Purchases of marketable securities |  | (1,867.9) | (2,250.1) | (1,355.1)
Sales of marketable securities |  | 1,257.7 | 329.4 | 190.0
Maturities of marketable securities |  | 1,057.2 | 1,376.6 | 969.0
Acquisitions, net of cash acquired |  | (85.2) | (148.5) | (630.0)
Capital expenditures |  | (76.0) | (72.4) | (75.5)
Other investing activities |  | (13.8) | (44.5) | (4.0)
Net cash provided by (used in) investing activities |  | 272.0 | (809.5) | (905.6)
Financing Activities |  |  |  |
Proceeds from issuance of common stock |  | 119.6 | 110.8 | 175.4
Taxes paid related to net share settlement of equity awards |  | (76.2) | (51.6) | (40.0)
Repurchase and retirement of common shares |  | (621.7) | (458.0) | (372.4)
Proceeds from debt, net of discount |  | 0.0 | 748.3 | 0.0
Other financing activities |  | 0.0 | (6.3) | (3.4)
Net cash provided by (used in) financing activities (1) | [1] | (578.3) | 343.2 | (240.4)
Effect of exchange rate changes on cash and cash equivalents |  | (3.3) | (5.3) | (5.0)
Net decrease in cash and cash equivalents |  | (139.9) | (57.6) | (442.4)
Cash and cash equivalents at beginning of fiscal year |  | 1,353.0 | 1,410.6 | 1,853.0
Cash and cash equivalents at end of fiscal year |  | 1,213.1 | 1,353.0 | 1,410.6
Supplemental cash flow information: |  |  |  |
Cash paid during the year for interest |  | 47.6 | 34.7 | 20.4
Net cash paid during the year for income taxes |  | $ 77.7 | $ 59.1 | $ 63.4
[1] | During the three months ended July 31, 2016, the Company early adopted Accounting Standards Update No. 2016-09, “Improvements to Employee Share-Based Payment Accounting (Topic 718)” (“ASU 2016-09”), which addresses among other items, updates to the presentation and treatment of excess tax benefits related to stock based compensation. The Company has adopted changes to the consolidated statements of cash flows on a retrospective basis. The impact for the fiscal year ended January 31, 2015 to net cash provided by operating activities and net cash used in financing activities was $0.5 million. There was no impact to the fiscal year ended January 31, 2016.

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- Definition The cash inflow associated with maturities (principal being due), prepayments and calls (requests of early payments) on securities not classified as either held-to-maturity securities or trading securities which are classified as available-for-sale securities. + 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 (a),(b) -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 -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=66010992&loc=d3e26853-111562 Reference 3: 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 Amount of cash inflow (outflow) from financing activities classified as other. + 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 8 -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3095-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3098-108585 + Details
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- Definition The cash inflow associated with the sale of debt and equity securities classified as available-for-sale securities. + 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 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=66010992&loc=d3e26853-111562 Reference 3: 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=66902209&loc=d3e3179-108585 + 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=66902209&loc=d3e3602-108585 + Details
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- References No definition available. + Details
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