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v3.20.2

Condensed Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands | Total | Common Shares | Capital in Excess of Par Value | Accumulated Other Comprehensive Income (Loss) | Accumulated Deficit
--- | --- | --- | --- | --- | ---
Beginning balance (in shares) at Dec. 31, 2018 |  | 173,530,000 |  |  |
Beginning balance at Dec. 31, 2018 | $ 1,717,575 | $ 17 | $ 3,147,925 | $ (6,316) | $ (1,424,051)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Shares issued under equity compensation plans (in shares) |  | 698,000 |  |  |
Shares issued under equity compensation plans | 5,463 |  | 5,463 |  |
Stock-based compensation | 25,385 |  | 25,385 |  |
Comprehensive loss | (114,912) |  |  | 4,720 | (119,632)
Ending balance (in shares) at Mar. 31, 2019 |  | 174,228,000 |  |  |
Ending balance at Mar. 31, 2019 | 1,633,511 | $ 17 | 3,178,773 | (1,596) | (1,543,683)
Beginning balance (in shares) at Dec. 31, 2018 |  | 173,530,000 |  |  |
Beginning balance at Dec. 31, 2018 | $ 1,717,575 | $ 17 | 3,147,925 | (6,316) | (1,424,051)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Shares issued under equity compensation plans (in shares) | 115,000 |  |  |  |
Comprehensive loss | $ (222,893) |  |  |  |
Ending balance (in shares) at Jun. 30, 2019 |  | 174,966,000 |  |  |
Ending balance at Jun. 30, 2019 | 1,557,155 | $ 17 | 3,210,398 | 709 | (1,653,969)
Beginning balance (in shares) at Mar. 31, 2019 |  | 174,228,000 |  |  |
Beginning balance at Mar. 31, 2019 | $ 1,633,511 | $ 17 | 3,178,773 | (1,596) | (1,543,683)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Shares issued under equity compensation plans (in shares) | 95,000 | 738,000 |  |  |
Shares issued under equity compensation plans | $ 7,841 |  | 7,103 |  |
Stock-based compensation | 24,522 |  | 24,522 |  |
Comprehensive loss | (107,981) |  |  | 2,305 | (110,286)
Ending balance (in shares) at Jun. 30, 2019 |  | 174,966,000 |  |  |
Ending balance at Jun. 30, 2019 | 1,557,155 | $ 17 | 3,210,398 | 709 | (1,653,969)
Beginning balance (in shares) at Dec. 31, 2019 |  | 176,505,000 |  |  |
Beginning balance at Dec. 31, 2019 | 1,405,391 | $ 17 | 3,271,097 | (1,005) | (1,864,718)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Shares issued under equity compensation plans (in shares) |  | 1,358,000 |  |  |
Shares issued under equity compensation plans | 11,347 |  | 11,347 |  |
Stock-based compensation | 24,211 |  | 24,211 |  |
Comprehensive loss | (144,523) |  |  | (5,872) | (138,651)
Ending balance (in shares) at Mar. 31, 2020 |  | 177,863,000 |  |  |
Ending balance at Mar. 31, 2020 | 1,296,426 | $ 17 | 3,306,655 | (6,877) | (2,003,369)
Beginning balance (in shares) at Dec. 31, 2019 |  | 176,505,000 |  |  |
Beginning balance at Dec. 31, 2019 | $ 1,405,391 | $ 17 | 3,271,097 | (1,005) | (1,864,718)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Shares issued under equity compensation plans (in shares) | 49,000 |  |  |  |
Comprehensive loss | $ (216,931) |  |  |  |
Ending balance (in shares) at Jun. 30, 2020 |  | 178,810,000 |  |  |
Ending balance at Jun. 30, 2020 | 1,256,240 | $ 18 | 3,338,876 | 715 | (2,083,369)
Beginning balance (in shares) at Mar. 31, 2020 |  | 177,863,000 |  |  |
Beginning balance at Mar. 31, 2020 | $ 1,296,426 | $ 17 | 3,306,655 | (6,877) | (2,003,369)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Shares issued under equity compensation plans (in shares) | 0 | 947,000 |  |  |
Shares issued under equity compensation plans | $ 7,826 | $ 1 | 7,825 |  |
Stock-based compensation | 24,396 |  | 24,396 |  |
Comprehensive loss | (72,408) |  |  | 7,592 | (80,000)
Ending balance (in shares) at Jun. 30, 2020 |  | 178,810,000 |  |  |
Ending balance at Jun. 30, 2020 | $ 1,256,240 | $ 18 | $ 3,338,876 | $ 715 | $ (2,083,369)

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