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Consolidated Statements Of Shareholders' Equity - USD ($) shares in Thousands, $ in Thousands | Total | Common Stock | Retained Earnings | Accumulated Other Comprehensive Income (Loss)
--- | --- | --- | --- | ---
Balance, beginning of period at Dec. 31, 2015 | $ 1,278,963 | $ 945,565 | $ 404,299 | $ (70,901)
Balance, beginning of period (in shares) at Dec. 31, 2015 |  | 106,289 |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Net income (loss) | (81,445) |  | (81,445) |
Foreign currency translation adjustments | (35,943) |  |  | (35,943)
Unrealized gain on hedges, net of tax | 9,870 |  |  | 9,870
Unrealized gain (loss) on note receivable, net of tax | 0 |  |  |
Equity component of debt discount on convertible senior notes | 10,719 | $ 10,719 |  |
Re-acquisition of equity component of debt discount on convertible senior notes | (1,625) | (1,625) |  |
Issuance of common stock, net of transaction costs | 96,547 | $ 96,547 |  |
Issuance of common stock, net of transaction costs (in shares) |  | 13,019 |  |
Activity in company stock plans, net and other | 463 | $ 463 |  |
Activity in company stock plans, net and other (in shares) |  | 1,322 |  |
Share-based compensation | 5,767 | $ 5,767 |  |
Cumulative share-based compensation in excess of fair value of modified liability awards | 203 | 203 |  |
Excess tax from share-based compensation | (1,705) | (1,705) |  |
Balance, end of period at Dec. 31, 2016 | 1,281,814 | $ 1,055,934 | 322,854 | (96,974)
Balance, end of period (in shares) at Dec. 31, 2016 |  | 120,630 |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Net income (loss) | 30,052 |  | 30,052 |
Foreign currency translation adjustments | 16,264 |  |  | 16,264
Unrealized gain on hedges, net of tax | 10,514 |  |  | 10,514
Unrealized gain (loss) on note receivable, net of tax | 409 |  |  | 409
Equity component of debt discount on convertible senior notes | (7) | $ (7) |  |
Issuance of common stock, net of transaction costs | 219,504 | $ 219,504 |  |
Issuance of common stock, net of transaction costs (in shares) |  | 26,450 |  |
Activity in company stock plans, net and other | (1,887) | $ (1,887) |  |
Activity in company stock plans, net and other (in shares) |  | 660 |  |
Share-based compensation | 10,730 | $ 10,730 |  |
Balance, end of period at Dec. 31, 2017 | 1,567,393 | $ 1,284,274 | 352,906 | (69,787)
Balance, end of period (in shares) at Dec. 31, 2017 |  | 147,740 |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Net income (loss) | 28,598 |  | 28,598 |
Reclassification of stranded tax effect to retained earnings | 0 |  | 1,530 | (1,530)
Foreign currency translation adjustments | (7,166) |  |  | (7,166)
Unrealized gain on hedges, net of tax | 5,016 |  |  | 5,016
Unrealized gain (loss) on note receivable, net of tax | (497) |  |  | (497)
Equity component of debt discount on convertible senior notes | 15,411 | $ 15,411 |  |
Activity in company stock plans, net and other | (746) | $ (746) |  |
Activity in company stock plans, net and other (in shares) |  | 463 |  |
Share-based compensation | 9,770 | $ 9,770 |  |
Balance, end of period at Dec. 31, 2018 | $ 1,617,779 | $ 1,308,709 | $ 383,034 | $ (73,964)
Balance, end of period (in shares) at Dec. 31, 2018 |  | 148,203 |  |

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