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Consolidated Statements Of Cash Flows - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
CASH FLOWS FROM OPERATING ACTIVITIES |  |  |
Net income | $ 79,746 | $ 64,398 | $ 98,070
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Depreciation and amortization | 13,562 | 12,447 | 11,832
Amortization of intangible assets | 0 | 766 | 2,964
Gain from disposal of short-term investments | (169) | (48) | (134)
Gain (loss) from disposal of subsidiary | 293 | (12,409) |
Gain from disposal of long-term investments |  | (473) |
Loss on equity-method investment |  |  | 473
Stock-based compensation | 14,589 | 14,591 | 20,779
Loss on disposal of property and equipment | 143 | 22 | 66
Impairment of goodwill and intangible assets | 17,489 | 15,970 | 4,069
Deferred income taxes | (667) | 1,118 | (1,664)
Changes in operating assets and liabilities: |  |  |
Short-term investments | 2,391 | 1,627 | 3,240
Notes and accounts receivable | (7,091) | (18,755) | (12,628)
Inventories | (21,723) | (10,155) | 12,668
Prepaid expenses and other current assets | (5,031) | (1,932) | 2,689
Other assets | 172 | (397) | 142
Notes and accounts payable | 13,848 | 4,426 | (28,766)
Refund liabilities | (154) | 167 | 2,093
Accrued expenses and other current liabilities | 7,328 | 10,607 | (4,679)
Income tax payable | 4,421 | (1,698) | (7,329)
Other liabilities | (1,918) | (2,577) | 4,357
Net cash provided by operating activities | 117,229 | 77,695 | 108,242
CASH FLOWS FROM INVESTING ACTIVITIES |  |  |
Purchase of long-term investment | (2,000) |  | (4,715)
Proceeds from sale of subsidiary |  | 43,968 |
Proceeds from sale of long-term investment |  | 1,715 |
Purchase of property and equipment | (19,545) | (11,015) | (74,853)
Net cash provided by (used in) investing activities | (21,545) | 34,668 | (79,568)
CASH FLOWS FROM FINANCING ACTIVITIES |  |  |
Repayments of bank loan | (50,000) |  | (25,000)
Proceeds from bank loan | 50,000 |  |
Dividends paid | (48,901) | (44,029) | (43,281)
Share repurchase | (25,013) | (26,231) | (33,539)
Net cash used in financing activities | (73,914) | (70,260) | (101,820)
NET INCREASE (DECREASE) IN CASH, CASH EQUIVALENTS, AND RESTRICTED CASH | 21,770 | 42,103 | (73,146)
EFFECT OF EXCHANGE RATE CHANGES | (812) | (977) | (1,250)
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH, BEGINNING OF YEAR | 348,253 | 307,127 | 381,523
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH, END OF YEAR | 369,211 | 348,253 | 307,127
SUPPLEMENTAL INFORMATION |  |  |
Interest paid | 11 |  | 376
Income taxes paid | 8,518 | 5,612 | 13,792
Disposal of FCI |  |  |
Total consideration |  | 54,129 |
Other current assets |  | (245) |
Cash and restricted cash disposed |  | (9,916) |
Proceeds from sale of subsidiary |  | 43,968 |
Non-Cash Investing and Financing Activities: |  |  |
Unpaid purchase of property and equipment included in accounts payable and accrued liabilities | 2,105 | 523 | 960
Dividend declared included in accrued expenses and accrued liabilities | $ 36,658 | $ 35,906 | $ 32,851

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