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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 6 Months Ended
--- | ---
Jun. 30, 2022 | Jun. 30, 2021
Cash flows from operating activities |  |
Net income (loss) | $ 13,218 | $ (32,415)
Adjustments to reconcile net income (loss) to net cash provided by operating activities: |  |
Print textbook depreciation expense | 1,610 | 6,581
Other depreciation and amortization expense | 41,921 | 30,187
Share-based compensation expense | 64,171 | 51,645
Amortization of debt issuance costs | 2,779 | 3,097
Gain on foreign currency remeasurement of purchase consideration | (4,628) | 0
Impairment charges | 3,411 | 0
Loss on early extinguishment of debt | 0 | 78,152
Loss on change in fair value of derivative instruments, net | 0 | 7,148
Loss from write-off of property and equipment | 2,767 | 1,042
Gain on sale of strategic equity investment | 0 | (5,338)
(Gain) loss on textbook library, net | (4,967) | 4,230
Operating lease expense, net of accretion | 3,242 | 3,064
Other non-cash items | 167 | 298
Change in assets and liabilities, net of effect of acquisition of businesses: |  |
Accounts receivable | 3,227 | 3,462
Prepaid expenses and other current assets | 28,768 | (14,715)
Other assets | 13,058 | 7,220
Accounts payable | (5,246) | (3,139)
Deferred revenue | 4,256 | 2,062
Accrued liabilities | (21,034) | 4,197
Other liabilities | (2,965) | (2,277)
Net cash provided by operating activities | 143,755 | 144,501
Cash flows from investing activities |  |
Purchases of property and equipment | (57,286) | (46,595)
Purchases of textbooks | (3,815) | (5,018)
Proceeds from disposition of textbooks | 2,494 | 6,709
Purchases of investments | (356,553) | (984,606)
Maturities of investments | 522,466 | 455,536
Proceeds from sale of strategic equity investment | 0 | 7,081
Acquisition of businesses, net of cash acquired | (401,125) | (7,891)
Net cash used in investing activities | (293,819) | (574,784)
Cash flows from financing activities |  |
Proceeds from common stock issued under stock plans, net | 4,558 | 5,267
Payment of taxes related to the net share settlement of equity awards | (10,221) | (74,642)
Proceeds from equity offering, net of offering costs | 0 | 1,091,466
Repayment of convertible senior notes | 0 | (300,751)
Proceeds from exercise of convertible senior notes capped call | 0 | 69,004
Repurchases of common stock | (300,450) | 0
Net cash (used in) provided by financing activities | (306,113) | 790,344
Effect of exchange rate changes | 4,628 | 0
Net (decrease) increase in cash, cash equivalents and restricted cash | (451,549) | 360,061
Cash, cash equivalents and restricted cash, beginning of period | 855,893 | 481,715
Cash, cash equivalents and restricted cash, end of period | 404,344 | 841,776
Supplemental cash flow data: |  |
Interest | 437 | 615
Income taxes, net of refunds | 3,915 | 4,268
Cash paid for amounts included in the measurement of lease liabilities: |  |
Operating cash flows from operating leases | 3,869 | 4,030
Right of use assets obtained in exchange for lease obligations: |  |
Operating leases | 3,244 | 0
Non-cash investing and financing activities: |  |
Accrued purchases of long-lived assets | 4,057 | 2,341
Issuance of common stock related to repayment of convertible senior notes | 0 | 235,521
Reconciliation of cash, cash equivalents and restricted cash: |  |
Cash and cash equivalents | 402,089 | 840,056
Restricted cash included in other current assets | 64 | 0
Restricted cash included in other assets | 2,191 | 1,720
Total cash, cash equivalents and restricted cash | $ 404,344 | $ 841,776

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