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UNAUDITED INTERIM CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 6 Months Ended
--- | ---
Jun. 30, 2021 | Dec. 31, 2020 | Jun. 30, 2020
Cash flows from operating activities |  |  |
Net loss | $ (855,760) | $ (949,831) | $ (674,326)
Adjustments to reconcile net loss to net cash used in operating activities: |  |  |
Allowance for credit losses | 45,941 |  | 24,189
Amortization of discount on convertible notes | 42,311 |  | 40,805
Amortization of intangible assets | 7,811 |  | 5,695
Deferred income tax | (17,512) |  | (16,515)
Depreciation of property and equipment | 111,256 |  | 74,526
Gain on disposal of subsidiary | 0 |  | (75,831)
Gain on re-measurement of equity interests | 0 |  | (3,003)
Impairment loss on investments | 0 |  | 8,856
Net loss (gain) on debt extinguishment | (11,427) |  | 12,158
Net foreign exchange differences | (16,993) |  | (19,041)
Share-based compensation | 214,560 |  | 117,186
Share of results of equity investees | (1,198) |  | 1,588
Unrealized loss on marketable equity securities | 21,118 |  | 0
Others | 2,764 |  | 2,943
Operating cash flows before changes in working capital | (457,129) |  | (500,770)
Inventories | (40,037) |  | (36,408)
Accounts receivable | (21,017) |  | (63,383)
Prepaid expenses and other assets | (188,670) |  | (213,859)
Amounts due from related parties | 8,346 |  | (12,675)
Operating lease right-of-use assets | (155,440) |  | (16,199)
Accounts payable | 56,874 |  | 29,737
Accrued expenses and other payables | 493,408 |  | 324,992
Advances from customers | 50,179 |  | 36,269
Operating lease liabilities | 162,612 |  | 12,361
Deferred revenue | 490,938 |  | 488,206
Income tax payable | 37,401 |  | 16,621
Amounts due to related parties | 13,261 |  | 9,554
Net cash generated from operating activities | 450,726 |  | 74,446
Cash flows from investing activities |  |  |
Purchase of property and equipment | (242,866) |  | (103,961)
Purchase of intangible assets and capitalized software costs | (13,594) |  | (8,086)
Purchase of investments | (980,296) |  | (41,114)
Proceeds from disposal of property and equipment | 227 |  | 980
Proceeds from sale and maturity of investments | 28,047 |  | 3,644
Distribution from investments | 0 |  | 386
Acquisition of businesses, net of cash acquired | 17,888 |  | (90,994)
Disposal of subsidiary, net of cash disposed | 0 |  | 15,380
Change in loans receivable | (459,233) |  | (87,047)
Net cash used in investing activities | (1,649,827) |  | (310,812)
Cash flows from financing activities |  |  |
Repayment of borrowings and finance lease obligations | (35) |  | (31,824)
Proceeds from borrowings | 0 |  | 1,224
Proceeds from issuance of ordinary shares, net | 18,953 |  | 6,234
Transaction with non-controlling interests | 0 |  | (19,042)
Payments for exchange and conversion of convertible notes | (1,929) |  | (50,000)
Proceeds from issuance of convertible notes, net | 0 |  | 1,005,662
Change in accrued expenses and other payables | 163,369 |  | (125,417)
Net cash generated from financing activities | 180,358 |  | 786,837
Effect of foreign exchange rate changes on cash, cash equivalents and restricted cash | (31,750) |  | 8,695
Net increase (decrease) in cash, cash equivalents and restricted cash | (1,050,493) |  | 559,166
Cash, cash equivalents and restricted cash at beginning of the period | 7,053,393 | 4,129,744 | 3,570,578
Cash, cash equivalents and restricted cash at end of the period | 6,002,900 | $ 7,053,393 | 4,129,744
Supplement disclosures of cash flow information: |  |  |
Income taxes paid | (81,586) |  | (54,545)
Interest paid | (22,383) |  | (12,422)
Supplement disclosures of non-cash activities: |  |  |
Purchase of property and equipment included in accrued expenses and other payables | 18,717 |  | 12,495
Purchase of intangible assets included in accrued expenses and other payables | (334) |  | 3
Purchase of property and equipment included in prepayments | (87,387) |  | 312
Purchase of intangible assets included in prepayments | (3,095) |  | (6,974)
Conversion and exchange of convertible notes into ordinary shares | (588,007) |  | (136,322)
Acquisition of subsidiaries by conversion of convertible notes or issuance of shares | 252,960 |  | 72,000
Proceeds from disposal of a subsidiary included in prepaid expenses and other assets | 0 |  | 38,430
Transfers of loans receivable to prepaid expenses and other assets | $ 186 |  | $ 8,068

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