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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2020 | Mar. 31, 2019
Cash flows from operating activities |  |
Net loss | $ (5,713) | $ (4,318)
Adjustments to reconcile net loss to net cash provided by operating activities: |  |
Print textbook depreciation expense | 3,527 | 0
Other depreciation and amortization expense | 9,243 | 6,785
Share-based compensation expense | 18,334 | 15,038
Amortization of debt discount and issuance costs | 12,946 | 4,005
Gain on textbook library, net | (1,175) | 0
Deferred income taxes | (311) | 0
Operating lease expense, net of accretion | 1,053 | 1,049
Other non-cash items | (1) | (44)
Change in assets and liabilities: |  |
Accounts receivable | 4,929 | 4,024
Prepaid expenses and other current assets | (9,707) | (11,522)
Other assets | (1,425) | (1,166)
Accounts payable | (436) | (1,836)
Deferred revenue | 16,973 | 8,858
Accrued liabilities | 15,972 | 216
Other liabilities | (1,242) | (3,148)
Net cash provided by operating activities | 62,967 | 17,941
Cash flows from investing activities |  |
Purchases of property and equipment | (19,965) | (14,060)
Purchases of textbooks | (36,830) | 0
Proceeds from disposition of textbooks | 2,170 | 0
Purchases of investments | (112,421) | (21,572)
Maturities of investments | 121,784 | 48,805
Purchase of strategic equity investment | (2,000) | 0
Net cash (used in) provided by investing activities | (47,262) | 13,173
Cash flows from financing activities |  |
Common stock issued under stock plans, net | 2,667 | 6,982
Payment of taxes related to the net share settlement of equity awards | (46,836) | (76,044)
Proceeds from issuance of convertible senior notes, net of issuance costs | 0 | 682,594
Purchase of convertible senior notes capped call | 0 | (85,050)
Repurchase of common stock | 0 | (20,000)
Net cash (used in) provided by financing activities | (44,169) | 508,482
Net (decrease) increase in cash, cash equivalents and restricted cash | (28,464) | 539,596
Cash, cash equivalents and restricted cash, beginning of period | 389,432 | 375,945
Cash, cash equivalents and restricted cash, end of period | 360,968 | 915,541
Supplemental cash flow data: |  |
Interest | 500 | 0
Income taxes | 756 | 626
Cash paid for amounts included in the measurement of lease liabilities: |  |
Operating cash flows from operating leases | 1,572 | 1,126
Non-cash investing and financing activities: |  |
Accrued purchases of long-lived assets | 8,020 | 5,127
Reconciliation of cash, cash equivalents and restricted cash: |  |
Total cash, cash equivalents and restricted cash | $ 360,968 | $ 915,541

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- Definition The cash outflow to reacquire common stock during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585 + Details
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- Definition Amount of cash outflow to satisfy grantee's tax withholding obligation for award under share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585 + Details
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- Definition The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585 + Details
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