| Dec 31,
2018 | Dec 31,
2019 | Dec 31,
2020 | Dec 31,
2021 | Dec 31,
2022 | Dec 31,
2023 |
|---|
| Profit (loss) before tax | 117,444 | 121,968 | 108,171 | 135,472 | 140,525 | 125,929 |
|---|
| Depreciation and amortization | 6,453 | 7,694 | 8,574 | 8,468 | 6,767 | 8,598 |
|---|
| Share-based payment expenses | 5,497 | 2,133 | 3,002 | 10,508 | 9,691 | 4,388 |
|---|
| Interest and dividend income | -9,788 | -13,376 | -8,275 | -6,452 | -12,986 | -24,621 |
|---|
| Interest expenses | 71 | 401 | 357 | 415 | 588 | 1,410 |
|---|
| Impairment losses (reversal of impairment losses) | 11,374 | 18,006 | 9,655 | 2,941 | 5,337 | 3,040 |
|---|
| Loss (profit) on revaluation | - | - | - | - | 5,356 | -6,253 |
|---|
| Share of loss (profit) of investments accounted for using equity method | 837 | 325 | -765 | 999 | 10,246 | 3,510 |
|---|
| Impairment loss on equity method investments | - | - | - | - | - | 44,425 |
|---|
| (Gain) loss on sale of investments accounted for under the equity method | - | - | - | 10 | -9,531 | -126 |
|---|
| Loss (gain) on valuation of securities | - | -107 | -4,382 | -703 | 6,498 | -2,606 |
|---|
| Loss (gain) on sales and redemption of securities | - | - | - | -3,734 | 4,058 | -1,981 |
|---|
| Foreign exchange loss (gain) | -10,345 | -14,065 | 15,306 | -10,022 | -17,241 | -6,632 |
|---|
| Decrease (increase) in trade and other receivables | 2,679 | -301 | 5,855 | 4,816 | -8,968 | -4,516 |
|---|
| Decrease (increase) in other current assets | -3,648 | -850 | 419 | -3,136 | -1,429 | 3,170 |
|---|
| Increase (decrease) in trade and other payables | 40 | 448 | 2,691 | -1,466 | 4,089 | 946 |
|---|
| Increase (decrease) in deferred income | 10,855 | -2,612 | 437 | -1,954 | 7,131 | -299 |
|---|
| Increase (decrease) in provisions | -1,438 | 1,268 | 2,796 | -1,188 | 4,216 | 1,478 |
|---|
| Increase (decrease) in other current liabilities | - | 515 | 758 | -1,389 | 2,370 | 3,312 |
|---|
| Increase (decrease) in loss allowances-OpeCF (IFRS) | - | - | - | - | -44 | 5,484 |
|---|
| Other | 1,785 | 459 | -64 | 1,157 | 1,256 | 4,693 |
|---|
| Subtotal | 129,069 | 114,018 | 144,535 | 136,331 | 157,929 | 163,349 |
|---|
| Interest and dividends received | 7,497 | 11,992 | 11,353 | 7,587 | 12,442 | 20,938 |
|---|
| Interest paid | -71 | -397 | -408 | -415 | -585 | -1,405 |
|---|
| Income taxes paid | -18,477 | -20,540 | -17,877 | -37,589 | -39,642 | -54,170 |
|---|
| Net cash provided by (used in) operating activities | 118,018 | 105,073 | 137,603 | 105,914 | 130,144 | 128,712 |
|---|
| Net decrease (increase) in restricted deposit | - | -39 | -3,443 | 334 | -410 | -4,792 |
|---|
| Net decrease (increase) in time deposits | - | 9,958 | -32,736 | 110,550 | 21,925 | -138,101 |
|---|
| Purchase of property, plant and equipment | -1,683 | -1,425 | -2,342 | -1,585 | -2,801 | -3,407 |
|---|
| Proceeds from sale of property, plant and equipment | 36 | 149 | 77 | 68 | 120 | 41 |
|---|
| Purchase of intangible assets | -863 | -690 | -890 | -12,541 | -3,101 | -2,306 |
|---|
| Payments associated with increase in long-term prepaid expenses-InvCF (IFRS) | -76 | -185 | -1,441 | -3,210 | -2,613 | -353 |
|---|
| Purchases of securities by investment funds under consolidated subsidiaries | - | - | -31,867 | -37,167 | -17,539 | -17,488 |
|---|
| Proceeds from sale of securities by investment funds under consolidated subsidiaries | - | - | 20,423 | 35,512 | 18,478 | 19,681 |
|---|
| Purchase of securities | -1,737 | -31,519 | -86,258 | -26,492 | -1,245 | -10,392 |
|---|
| Proceeds from sales and redemption of marketable securities | 3,573 | 2,395 | 865 | 6,327 | 326 | 2,324 |
|---|
| Purchase of investments accounted for using equity method | - | - | -2,075 | -52,637 | -27,790 | -26,627 |
|---|
| Proceeds from sale of investments accounted for using equity method | - | 146 | 55 | - | 9,610 | 126 |
|---|
| Payments for acquisition of subsidiaries | -12,787 | -6,864 | - | - | -1,258 | - |
|---|
| Payments for short-term loans receivable | - | - | -106 | -16,630 | -163 | - |
|---|
| Collection of short-term loans receivable | - | - | 33 | 16,620 | 178 | 10 |
|---|
| Payments for long-term loans receivable-InvCF (IFRS) | - | - | - | -1,397 | -4,309 | -6,157 |
|---|
| Collection of long-term loans receivable | - | - | - | 32 | 27 | 17 |
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| Other | 630 | -728 | -529 | 300 | -353 | -943 |
|---|
| Net cash provided by (used in) investing activities | -68,183 | -28,625 | -140,234 | 18,084 | -10,918 | -188,367 |
|---|
| Proceeds from exercise of employee share options | 7,323 | 3,127 | 7,050 | 4,101 | 6,023 | 12,481 |
|---|
| Purchase of treasury shares | -1 | -27,225 | -2,783 | -16,034 | -98,824 | -79,023 |
|---|
| Purchases of treasury stock of subsidiaries-FinCF (IFRS) | - | - | - | - | -1,248 | - |
|---|
| Dividends paid | - | - | -4,417 | -4,441 | -8,785 | -8,579 |
|---|
| Repayment of lease liability | -33 | -1,790 | -2,339 | -2,585 | -3,025 | -3,445 |
|---|
| Other | - | -2 | - | - | - | 12 |
|---|
| Net cash provided by (used in) financing activities | 8,260 | -27,742 | -2,626 | -21,053 | -105,859 | -78,554 |
|---|
| Net increase (decrease) in cash and cash equivalents | 58,095 | 48,706 | -5,257 | 102,945 | 13,367 | -138,209 |
|---|
| Effect of exchange rate changes on cash and cash equivalents | -6,045 | -362 | 4,191 | 9,724 | 30,762 | 9,356 |
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