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v3.10.0.1

Consolidated Statement of Shareholders' Equity - USD ($) shares in Thousands, $ in Thousands | Total | Common Stock | Additional Paid-in Capital | Retained Earnings | Accumulated Other Comprehensive Loss
--- | --- | --- | --- | --- | ---
Increase (Decrease) in Stockholders' Equity |  |  |  |  |
Adjustment as a result of the adoption of ASU 2016-06 Income Taxes - Intra-Entity Transfers Other than Inventory (Note 12) | $ (5,961) |  |  | $ (5,961) |
Beginning Balance (in shares) at Dec. 31, 2017 | 173,507 | 173,507 |  |  |
Beginning Balance at Dec. 31, 2017 | $ 1,095,673 | $ 347 | $ 461,338 | 668,587 | $ (34,599)
Increase (Decrease) in Stockholders' Equity |  |  |  |  |
Issuance of common stock under stock plans (in shares) |  | 1,434 |  |  |
Issuance of common stock under stock plans | 25,882 | $ 3 | 25,879 |  |
Repurchase of common stock (in shares) |  | (2,750) |  |  |
Repurchase of common stock | (142,262) | $ (5) |  | (142,257) |
Stock-based compensation expense | 31,339 |  | 31,339 |  |
Payment of dividends | (23,283) |  |  | (23,283) |
Net income | 173,849 |  |  | 173,849 |
Net unrealized gain (loss) on available-for-sale investments, net of tax of ($82) | (180) |  |  |  | (180)
Reclassification of net realized (gain) loss on the sale of available-for-sale investments | (535) |  |  |  | (535)
Foreign currency translation adjustment | $ (5,078) |  |  |  | (5,078)
Ending Balance (in shares) at Sep. 30, 2018 | 172,032 | 172,191 |  |  |
Ending Balance at Sep. 30, 2018 | $ 1,149,444 | $ 345 | $ 518,556 | $ 670,935 | $ (40,392)

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- Definition Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of paid and unpaid cash dividends declared for classes of stock, for example, but not limited to, common and preferred. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -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=27012166&loc=d3e187085-122770 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 405 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6957935&loc=d3e64057-112817 + Details
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