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CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands | Total | Common Stock | Additional Paid-in Capital | Accumulated Other Comprehensive (Loss) Income | Accumulated Deficit
--- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2017 | $ 1,953,646 | $ 24,444 | $ 1,638,413 | $ 18,776 | $ 272,013
Balance, Shares at Dec. 31, 2017 |  | 195,548 |  |  |
Net issuance of common stock under stock-based plans | 2,010 | $ 197 | 1,813 |  |
Net issuance of common stock under stock-based plans (in shares) |  | 1,584 |  |  |
Stock-based compensation expense | 24,342 |  | 24,342 |  |
Repurchase of common stock | (568,660) | $ (1,730) |  |  | (566,930)
Repurchase of common stock (in shares) |  | (13,843) |  |  |
Cash dividends | (51,352) |  |  |  | (51,352)
Net income | 307,991 |  |  |  | 307,991
Other comprehensive loss | (12,896) |  |  | (12,896) |
Reclassification of unrealized gains on equity securities |  |  |  | (3,125) | 3,125
Reclassification of tax effects resulting from the Tax Reform Act |  |  |  | 769 | (769)
Balance at Sep. 30, 2018 | 1,667,760 | $ 22,911 | 1,664,568 | 3,524 | (23,243)
Balance, Shares at Sep. 30, 2018 |  | 183,289 |  |  |
Balance at Jul. 01, 2018 | 1,739,940 | $ 23,495 | 1,645,679 | (3,504) | 74,270
Balance, Shares at Jul. 01, 2018 |  | 187,962 |  |  |
Net issuance of common stock under stock-based plans | 10,098 | $ 42 | 10,056 |  |
Net issuance of common stock under stock-based plans (in shares) |  | 332 |  |  |
Stock-based compensation expense | 8,833 |  | 8,833 |  |
Repurchase of common stock | (201,472) | $ (626) |  |  | (200,846)
Repurchase of common stock (in shares) |  | (5,005) |  |  |
Cash dividends | (16,648) |  |  |  | (16,648)
Net income | 119,981 |  |  |  | 119,981
Other comprehensive loss | 7,029 |  |  | 7,028 |
Reclassification of tax effects resulting from the Tax Reform Act |  |  |  | 118 |
Balance at Sep. 30, 2018 | 1,667,760 | $ 22,911 | 1,664,568 | 3,524 | (23,243)
Balance, Shares at Sep. 30, 2018 |  | 183,289 |  |  |
Cumulative effect of changes in accounting principle related to revenue recognition | 12,679 |  |  |  | 12,679
Balance at Dec. 31, 2018 | 1,522,354 | $ 21,940 | 1,671,645 | (13,040) | (158,191)
Balance, Shares at Dec. 31, 2018 |  | 175,522 |  |  |
Net issuance of common stock under stock-based plans | 14,731 | $ 220 | 14,511 |  |
Net issuance of common stock under stock-based plans (in shares) |  | 1,762 |  |  |
Stock-based compensation expense | 26,029 |  | 26,029 |  |
Repurchase of common stock | (365,386) | $ (1,099) |  |  | (364,287)
Repurchase of common stock (in shares) |  | (8,794) |  |  |
Cash dividends | (46,307) |  |  |  | (46,307)
Net income | 342,395 |  |  |  | 342,395
Other comprehensive loss | (11,181) |  |  | (11,181) |
Reclassification of tax effects resulting from the Tax Reform Act |  |  |  | 553 |
Balance at Sep. 29, 2019 | 1,482,635 | $ 21,061 | 1,712,185 | (24,221) | (226,390)
Balance, Shares at Sep. 29, 2019 |  | 168,490 |  |  |
Balance at Jun. 30, 2019 | 1,479,412 | $ 21,305 | 1,688,211 | (7,591) | (222,513)
Balance, Shares at Jun. 30, 2019 |  | 170,436 |  |  |
Net issuance of common stock under stock-based plans | 14,087 | $ 46 | 14,041 |  |
Net issuance of common stock under stock-based plans (in shares) |  | 377 |  |  |
Stock-based compensation expense | 9,933 |  | 9,933 |  |
Repurchase of common stock | (124,763) | $ (290) |  |  | (124,473)
Repurchase of common stock (in shares) |  | (2,323) |  |  |
Cash dividends | (15,264) |  |  |  | (15,264)
Net income | 135,860 |  |  |  | 135,860
Other comprehensive loss | (16,630) |  |  | (16,630) |
Reclassification of tax effects resulting from the Tax Reform Act |  |  |  | 382 |
Balance at Sep. 29, 2019 | $ 1,482,635 | $ 21,061 | $ 1,712,185 | $ (24,221) | $ (226,390)
Balance, Shares at Sep. 29, 2019 |  | 168,490 |  |  |

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