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Consolidated Statements Of Changes In Shareholders' Equity - USD ($) shares in Thousands, $ in Thousands | Total | Ordinary Shares | Additional Paid-in Capital | Accumulated Other Comprehensive Income (Loss) | Retained Earnings (accumulated deficit)
--- | --- | --- | --- | --- | ---
BEGINNING BALANCE (in shares) at Dec. 31, 2013 |  | 131,630 |  |  |
BEGINNING BALANCE at Dec. 31, 2013 | $ 270,697 | $ 1,316 | $ 180,016 | $ 4,095 | $ 85,270
Net income | 44,467 |  |  |  | 44,467
Other comprehensive income | (1,590) |  |  | (1,590) |
Stock-based compensation expenses | 10,347 |  | 10,347 |  |
Issuance of ordinary shares upon exercise of employee stock options and restricted stock units, shares |  | 3,992 |  |  |
Issuance of ordinary shares upon exercise of employee stock options and restricted stock units | 460 | $ 40 | 420 |  |
Dividends declared | (20,281) |  |  |  | (20,281)
Ending Balance (in shares) at Dec. 31, 2014 |  | 135,622 |  |  |
Ending Balance at Dec. 31, 2014 | 304,100 | $ 1,356 | 190,783 | 2,505 | 109,456
Net income | 60,251 |  |  |  | 60,251
Other comprehensive income | (1,872) |  |  | (1,872) |
Issuance of ordinary shares for Shannon Systems acquisition | 7,640 | $ 16 | 7,624 |  |
Issuance of ordinary shares for Shannon Systems acquisition, Shares |  | 1,560 |  |  |
Stock-based compensation expenses | 10,418 |  | 10,418 |  |
Issuance of ordinary shares upon exercise of employee stock options and restricted stock units, shares |  | 2,339 |  |  |
Issuance of ordinary shares upon exercise of employee stock options and restricted stock units | 441 | $ 23 | 418 |  |
Dividends declared | (36,480) |  |  |  | (36,480)
Ending Balance (in shares) at Dec. 31, 2015 |  | 139,521 |  |  |
Ending Balance at Dec. 31, 2015 | 344,498 | $ 1,395 | 209,243 | 633 | 133,227
Net income | 110,940 |  |  |  | 110,940
Other comprehensive income | (1,665) |  |  | (1,665) |
Stock-based compensation expenses | 17,364 |  | 17,364 |  |
Issuance of ordinary shares upon exercise of employee stock options and restricted stock units, shares |  | 1,790 |  |  |
Issuance of ordinary shares upon exercise of employee stock options and restricted stock units | 69 | $ 18 | 51 |  |
Dividends declared | (28,443) |  |  |  | (28,443)
Ending Balance (in shares) at Dec. 31, 2016 |  | 141,311 |  |  |
Ending Balance at Dec. 31, 2016 | $ 442,763 | $ 1,413 | $ 226,658 | $ (1,032) | $ 215,724

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