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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jul. 31, 2017 | Jul. 31, 2016 | Jul. 31, 2017 | Jul. 31, 2016
CASH FLOWS FROM OPERATING ACTIVITIES: |  |  |  |
Net loss | $ (39,285) | $ (38,102) | $ (79,371) | $ (76,677)
Adjustments to reconcile net loss to net cash used in operating activities: |  |  |  |
Depreciation and amortization | 9,765 | 10,721 | 19,337 | 22,805
Stock-based compensation expense | 24,067 | 19,064 | 47,013 | 35,153
Amortization of deferred commissions | 5,368 | 4,605 | 10,358 | 9,376
Other | 19 | (25) | 41 | 83
Changes in operating assets and liabilities: |  |  |  |
Accounts receivable, net | (25,124) | (17,555) | 12,222 | 24,372
Deferred commissions | (5,835) | (4,149) | (8,619) | (6,406)
Prepaid expenses and other assets, current and noncurrent | (3,164) | 2,664 | (5,705) | 2,437
Accounts payable | (121) | (550) | 7,061 | (284)
Accrued expenses and other liabilities | 7,074 | 7,484 | (3,893) | (19,214)
Deferred rent | 1,189 | 144 | 1,719 | 2,654
Deferred revenue | 16,524 | 10,820 | (1,145) | (3,409)
Net cash used in operating activities | (9,523) | (4,879) | (982) | (9,110)
CASH FLOWS FROM INVESTING ACTIVITIES: |  |  |  |
Sales of marketable securities |  | 240 |  | 240
Maturities of marketable securities |  | 471 |  | 7,057
Purchases of property and equipment | (1,013) | (771) | (1,797) | (11,747)
Proceeds from sale of property and equipment | 2 | 72 | 29 | 76
Net cash (used in) provided by investing activities | (1,011) | 12 | (1,768) | (4,374)
CASH FLOWS FROM FINANCING ACTIVITIES: |  |  |  |
Payment of borrowing costs |  |  |  | (93)
Proceeds from exercise of stock options, net of repurchases of early exercised stock options | 2,957 | 1,969 | 5,413 | 4,215
Proceeds from issuances of common stock under employee stock purchase plan |  |  | 8,881 | 9,016
Employee payroll taxes paid related to net share settlement of restricted stock units | (5,821) | (4,100) | (14,935) | (8,868)
Acquisition related contingent consideration | (991) |  | (991) |
Payments of capital lease obligations | (4,176) | (2,312) | (7,912) | (3,261)
Net cash (used in) provided by financing activities | (8,031) | (4,443) | (9,544) | 1,009
Effect of exchange rate changes on cash and cash equivalents | 149 | (49) | 178 | 65
Net decrease in cash and cash equivalents | (18,416) | (9,359) | (12,116) | (12,410)
Cash and cash equivalents, beginning of period | 183,691 | 182,690 | 177,391 | 185,741
Cash and cash equivalents, end of period | 165,275 | 173,331 | 165,275 | 173,331
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION: |  |  |  |
Cash paid for interest, net of amounts capitalized | 466 | 555 | 889 | 788
Cash paid (received) for income taxes, net of tax refunds | 188 | (2) | 733 | 116
SUPPLEMENTAL DISCLOSURE OF NONCASH INVESTING AND FINANCING ACTIVITIES: |  |  |  |
Change in accrued equipment purchases | 2,054 | (2,180) | 890 | (15,024)
Purchases of property and equipment under capital lease | 5,972 | 5,562 | 15,681 | 9,910
Change in unpaid tax related to capital lease | $ 200 | 628 | $ 435 | 430
Change in unpaid taxes related to net share settlement of restricted stock units |  | $ (461) |  |
Vesting of early exercised stock options and restricted stock units |  |  |  | $ 11

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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=98514028&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=82896770&loc=d3e26853-111562 + 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 -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 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=98514028&loc=d3e3179-108585 + Details
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- Definition Amount of cash inflow from exercise of stock options granted under share-based compensation arrangement. + 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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=96867065&loc=SL79508275-113901 + Details
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- Definition The cash outflow for the obligation for a lease meeting the criteria for capitalization (with maturities exceeding one year or beyond the operating cycle of the entity, if longer). + 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 + 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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