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Shareholders' Equity | 12 Months Ended
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Dec. 31, 2020
Federal Home Loan Banks [Abstract] |
Shareholders' Equity | 16. SHAREHOLDERS’ EQUITY Dividends The Company declared cash dividends per ordinary share during the periods presented as follows:
|  | 2018 |  |  | 2019 |  |  | 2020 |
|  | Dividends Per Share (US$) |  |  | Amount (in US$ thousand) |  |  | Dividends Per Share (US$) |  |  | Amount (in US$ thousand) |  |  | Dividends Per Share (US$) |  |  | Amount (in US$ thousand) |
First quarter |  | $ | 0.075 |  |  | $ | 10,832 |  |  | $ | 0.075 |  |  | $ | 10,956 |  |  | $ | 0.0875 |  |  | $ | 12,301 |
Second quarter |  | $ | 0.075 |  |  |  | 10,835 |  |  | $ | 0.075 |  |  |  | 10,957 |  |  | $ | 0.0875 |  |  |  | 12,301 |
Third quarter |  | $ | 0.075 |  |  |  | 10,843 |  |  | $ | 0.075 |  |  |  | 10,029 |  |  | $ | 0.0875 |  |  |  | 12,303 |
Fourth quarter |  | $ | 0.075 |  |  |  | 10,849 |  |  | $ | 0.0875 |  |  |  | 12,171 |  |  | $ | 0.0875 |  |  |  | 12,089 |
|  |  |  |  |  | $ | 43,359 |  |  |  |  |  |  | $ | 44,113 |  |  |  |  |  |  | $ | 48,994 |
On November 2, 2015, the board of directors, began declaring , declared an annual dividend payable in four quarterly installments. The board of directors declared annual dividends of US$1.20, US$1.40 and US$1.40, equivalent to US$0.30, US$0.35 and US$0.35 per common share, payable in four quarterly installments on October 29, 2018, October 25, 2019 and October 26, 2020, respectively. Future dividends, if any, will be declared by and subject to the discretion of the Company’s board of directors. Share Repurchase On November 21, 2018, the board of directors of the Company authorized a plan to repurchase up to US$200 million of the Company’s ADSs over a 24 month period. On October 26, 2020, the Board of Directors of the Company to November 21, 2021. The repurchase plan does not obligate the Company to acquire any particular amount of ADS and may be modified or suspended at any time at the Company’s discretion. For the years ended December 31, 2018, 2019 and 2020, the Company repurchased 1,006 thousand, 762 thousand and 626 thousand ADSs for a total cost of US$34,755 thousand, US$25,103 thousand and US$25,044 thousand, respectively. The weighted average purchase price per ADS repurchased was US$34.54, US$32.82 and US$39.93 in 2018, 2019 and 2020, respectively.

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- Definition The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(e)(1)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -URI http://asc.fasb.org/topic&trid=2208762 + Details
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