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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Cash flows from operating activities: |  |  |
Net income | $ 357,495 | $ 97,809 | $ 411,877
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Depreciation and amortization | 58,509 | 54,694 | 55,008
Stock-based compensation | 101,131 | 111,713 | 87,996
Amortization of operating lease assets | 13,792 | 11,461 | 6,224
Non-cash compensation cost to non-controlling interest shareholders | 11,541 | (20,638) | 23,246
Provision of allowance for credit losses | 19,092 | 4,440 | 19,702
Deferred income taxes | 24,038 | (24,821) | (12,478)
Foreign currency exchange loss | 9,142 | 66,975 |
(Income) loss from equity method investments | (13,392) | 24,069 | (14,217)
Dividend received from equity method investments | 771 | 5,772 | 11,695
(Gain) loss on sale of investments | 766 | (1,591) | (3,243)
Fair value changes through earnings on investments, net | (43,002) | 243,619 | 72,787
Investment-related impairment and provision | (23,642) | (71,081) | (106,800)
Impairment of intangible assets |  | 10,176 |
Gain on disposal of property and equipment | (444) | (240) | (172)
Amortization of issuance cost of convertible senior notes, unsecured senior notes and long-term loans | 8,287 | 6,273 | 6,445
Changes in assets and liabilities: |  |  |
Prepaid expenses and other current assets | 6,157 | (20,686) | 2,589
Other non-current assets | (13,156) | (27,980) | (14,512)
Accounts payable | 19,665 | (35,481) | 41,809
Accrued and other liabilities | (197) | (38,058) | 274,803
Deferred revenues | (1,905) | (3,925) | (56,181)
Operating lease liabilities | (9,612) | (10,128) | (6,684)
Income taxes payable | 40,656 | (79,623) | 38,910
Net cash provided by operating activities | 672,820 | 564,104 | 814,020
Cash flows from investing activities: |  |  |
Purchases of bank time deposits and wealth management products | (755,315) | (629,889) | (1,170,070)
Maturities of bank time deposits and wealth management products | 585,466 | 859,075 | 2,040,599
Investment in and prepayment on long-term investments | (602,740) | (193,784) | (1,593,880)
Proceeds from disposal of/refund of prepayment on long-term investments | 347,766 | 141,806 | 447,381
Proceeds from disposal of property and equipment | 463 | 269 | 383
Purchases of property and equipment | (36,772) | (43,136) | (35,094)
Prepayment for purchase of SINA Plaza |  | (153,572) | (132,531)
Cash received from (paid for) acquisitions, net of cash acquired | (243,385) | 939 | (61,160)
Prepayment to agent for share repurchase |  | (2,318) |
Return of prepayment to agent for share repurchase | 2,318 |  |
Net cash used in investing activities | (736,846) | (33,014) | (423,960)
Cash flows from financing activities: |  |  |
Proceeds from employee options exercised | 1 | 0 | 1,313
Payments for share repurchases |  | (57,682) |
Cash received from (paid for) global offering, net of issuance costs |  | (8,414) | 188,129
Proceeds from long-term loans, net of issuance costs | 4,982 | 880,353 |
Repayment of convertible senior notes |  | (899,992) |
Repayment of long-term loans | (100,000) |  |
Proceeds from convertible senior notes, net of issuance costs | 321,707 |  |
Proceeds from ADS lending arrangement in connection with issuance of convertible senior notes | 2 |  |
Purchase of a subsidiary's shares from non-controlling shareholders | (4,871) | (5,406) |
Dividends paid to shareholders | (200,131) |  |
Net cash provided by (used in) financing activities | 21,690 | (91,141) | 189,442
Effect of exchange rate changes on cash and cash equivalents | (63,797) | (172,884) | 29,357
Net increase (decrease) in cash and cash equivalents | (106,133) | 267,065 | 608,859
Cash and cash equivalents at the beginning of the year | 2,690,768 | 2,423,703 | 1,814,844
Cash and cash equivalents at the end of the year | 2,584,635 | 2,690,768 | 2,423,703
Supplemental disclosures of cash flow information: |  |  |
Cash paid for interest expenses on convertible senior notes, unsecured senior notes and long-term loans | (111,231) | (64,562) | (37,906)
Cash paid for income taxes | (79,476) | (135,055) | (111,260)
Non-cash investing and financing activities |  |  |
Property and equipment in accounts payable | 4,179 | 17,641 | 5,520
Unpaid consideration for acquisition of STC |  | 218,402 |
Unpaid consideration for other acquisitions | (5,674) | (687) | (6,293)
Third parties |  |  |
Changes in assets and liabilities: |  |  |
Accounts receivable due from | 7,291 | 159,365 | (273,728)
Related party | Alibaba |  |  |
Changes in assets and liabilities: |  |  |
Accounts receivable due from | 12,321 | 10,162 | 49,003
Related party | SINA |  |  |
Changes in assets and liabilities: |  |  |
Amount due from SINA | 30,741 | (47,303) | (7,787)
Cash flows from investing activities: |  |  |
Loans to SINA | (1,105,747) | (1,261,880) | (978,162)
Repayment of loans by SINA | 1,071,100 | 1,249,476 | 1,058,574
Other related parties |  |  |
Changes in assets and liabilities: |  |  |
Accounts receivable due from | $ 9,491 | $ (3,031) | $ (5,872)

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