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CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY (UNAUDITED) (in thousands, except share data and dividends per share) - USD ($) $ in Thousands | Total | Common Stock | Additional Paid-in Capital | Retained Earnings (Deficit) | Accumulated Other Comprehensive Loss
--- | --- | --- | --- | --- | ---
Cash dividends declared per share | $ 0.01 |  |  |  |
Balances, Common Stock, Shares, Outstanding, Beginning at Dec. 31, 2019 |  | 112,987,952 |  |  |
Balances, Total Stockholders' Equity, Beginning at Dec. 31, 2019 | $ 2,748,994 | $ 1,130 | $ 1,791,596 | $ 967,587 | $ (11,319)
Increase (Decrease) in Stockholders' Equity |  |  |  |  |
Net income (loss) | (411,895) |  |  | (411,895) |
Other comprehensive income | 190 |  |  |  | 190
Cash dividends | (1,130) |  |  | (1,130) |
Issuance of common stock upon vesting of RSUs and settlement of PSUs, net of shares used for tax withholdings (Shares) |  | 730 |  |  |
Issuance of common stock upon vesting of RSUs and settlement of PSUs, net of shares used for tax withholdings (Amount) | (3) | $ 0 | (3) |  |
Stock-based compensation expense | 5,561 |  | 5,561 |  |
Balances, Common Stock, Shares, Outstanding, Ending at Mar. 31, 2020 |  | 112,988,682 |  |  |
Balances, Total Stockholders' Equity, Ending at Mar. 31, 2020 | $ 2,341,717 | $ 1,130 | 1,797,154 | 554,562 | (11,129)
Cash dividends declared per share | $ 0.02 |  |  |  |
Balances, Common Stock, Shares, Outstanding, Beginning at Dec. 31, 2019 |  | 112,987,952 |  |  |
Balances, Total Stockholders' Equity, Beginning at Dec. 31, 2019 | $ 2,748,994 | $ 1,130 | 1,791,596 | 967,587 | (11,319)
Increase (Decrease) in Stockholders' Equity |  |  |  |  |
Net income (loss) | (599,439) |  |  |  |
Other comprehensive income | 1,573 |  |  |  |
Balances, Common Stock, Shares, Outstanding, Ending at Sep. 30, 2020 |  | 114,572,800 |  |  |
Balances, Total Stockholders' Equity, Ending at Sep. 30, 2020 | 2,185,108 | $ 1,146 | 1,827,836 | 365,872 | (9,746)
Balances, Common Stock, Shares, Outstanding, Beginning at Mar. 31, 2020 |  | 112,988,682 |  |  |
Balances, Total Stockholders' Equity, Beginning at Mar. 31, 2020 | 2,341,717 | $ 1,130 | 1,797,154 | 554,562 | (11,129)
Increase (Decrease) in Stockholders' Equity |  |  |  |  |
Net income (loss) | (89,252) |  |  | (89,252) |
Other comprehensive income | 188 |  |  |  | 188
Issuance of common stock under Employee Stock Purchase Plan (Shares) |  | 297,013 |  |  |
Issuance of common stock under Employee Stock Purchase Plan (Amount) | 947 | $ 3 | 944 |  |
Stock-based compensation expense (shares) |  | 267,576 |  |  |
Stock-based compensation expense | 5,712 | $ 3 | 5,709 |  |
Issuance of Warrants | 21,520 |  | 21,520 |  |
Balances, Common Stock, Shares, Outstanding, Ending at Jun. 30, 2020 |  | 113,553,271 |  |  |
Balances, Total Stockholders' Equity, Ending at Jun. 30, 2020 | $ 2,280,832 | $ 1,136 | 1,825,327 | 465,310 | (10,941)
Cash dividends declared per share | $ 0.01 |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |
Net income (loss) | $ (98,292) |  |  | (98,292) |
Other comprehensive income | 1,195 |  |  |  | 1,195
Cash dividends | (1,146) |  |  | (1,146) |
Issuance of common stock upon vesting of RSUs and settlement of PSUs, net of shares used for tax withholdings (Shares) |  | 1,019,529 |  |  |
Issuance of common stock upon vesting of RSUs and settlement of PSUs, net of shares used for tax withholdings (Amount) | (1,557) | $ 10 | (1,567) |  |
Stock-based compensation expense | 4,164 |  | 4,164 |  |
Other | (88) |  | (88) |  |
Balances, Common Stock, Shares, Outstanding, Ending at Sep. 30, 2020 |  | 114,572,800 |  |  |
Balances, Total Stockholders' Equity, Ending at Sep. 30, 2020 | $ 2,185,108 | $ 1,146 | 1,827,836 | 365,872 | (9,746)
Cash dividends declared per share | $ 0.01 |  |  |  |
Balances, Common Stock, Shares, Outstanding, Beginning at Dec. 31, 2020 | 114,742,304 | 114,742,304 |  |  |
Balances, Total Stockholders' Equity, Beginning at Dec. 31, 2020 | $ 2,016,160 | $ 1,147 | 1,827,914 | 200,697 | (13,598)
Increase (Decrease) in Stockholders' Equity |  |  |  |  |
Net income (loss) | (251,269) |  |  | (251,269) |
Other comprehensive income | 191 |  |  |  | 191
Cash dividends | (1,147) |  |  | (1,147) |
Stock-based compensation expense | 5,737 |  | 5,737 |  |
Balances, Common Stock, Shares, Outstanding, Ending at Mar. 31, 2021 |  | 114,742,304 |  |  |
Balances, Total Stockholders' Equity, Ending at Mar. 31, 2021 | $ 1,769,672 | $ 1,147 | 1,833,651 | (51,719) | (13,407)
Cash dividends declared per share | $ 0.02 |  |  |  |
Balances, Common Stock, Shares, Outstanding, Beginning at Dec. 31, 2020 | 114,742,304 | 114,742,304 |  |  |
Balances, Total Stockholders' Equity, Beginning at Dec. 31, 2020 | $ 2,016,160 | $ 1,147 | 1,827,914 | 200,697 | (13,598)
Increase (Decrease) in Stockholders' Equity |  |  |  |  |
Net income (loss) | (388,671) |  |  |  |
Other comprehensive income | $ 1,029 |  |  |  |
Balances, Common Stock, Shares, Outstanding, Ending at Sep. 30, 2021 | 121,473,790 | 121,473,790 |  |  |
Balances, Total Stockholders' Equity, Ending at Sep. 30, 2021 | $ 1,636,899 | $ 1,215 | 1,838,620 | (190,367) | (12,569)
Cash dividends paid per share | $ 0.01 |  |  |  |
Balances, Common Stock, Shares, Outstanding, Beginning at Mar. 31, 2021 |  | 114,742,304 |  |  |
Balances, Total Stockholders' Equity, Beginning at Mar. 31, 2021 | $ 1,769,672 | $ 1,147 | 1,833,651 | (51,719) | (13,407)
Increase (Decrease) in Stockholders' Equity |  |  |  |  |
Net income (loss) | (222,995) |  |  | (222,995) |
Other comprehensive income | 592 |  |  |  | 592
Cash dividends | (31) |  |  | (31) |
Issuance of common stock under Employee Stock Purchase Plan (Shares) |  | 252,665 |  |  |
Issuance of common stock under Employee Stock Purchase Plan (Amount) | 1,315 | $ 3 | 1,312 |  |
Stock-based compensation expense (shares) |  | 57,795 |  |  |
Stock-based compensation expense | 3,956 | $ 1 | 3,955 |  |
Issuance of common stock through cashless exercise of warrants (Shares) |  | 5,918,089 |  |  |
Issuance of common stock through cashless exercise of warrants (Amount) | 0 | $ 59 | (59) |  |
Balances, Common Stock, Shares, Outstanding, Ending at Jun. 30, 2021 |  | 120,970,853 |  |  |
Balances, Total Stockholders' Equity, Ending at Jun. 30, 2021 | $ 1,552,509 | $ 1,210 | 1,838,859 | (274,745) | (12,815)
Cash dividends declared per share | $ 0.01 |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |
Net income (loss) | $ 85,593 |  |  | 85,593 |
Other comprehensive income | 246 |  |  |  | 246
Cash dividends | (1,215) |  |  | (1,215) |
Issuance of common stock upon vesting of RSUs and settlement of PSUs, net of shares used for tax withholdings (Shares) |  | 502,937 |  |  |
Issuance of common stock upon vesting of RSUs and settlement of PSUs, net of shares used for tax withholdings (Amount) | (4,732) | $ 5 | (4,737) |  |
Stock-based compensation expense | $ 4,498 |  | 4,498 |  |
Balances, Common Stock, Shares, Outstanding, Ending at Sep. 30, 2021 | 121,473,790 | 121,473,790 |  |  |
Balances, Total Stockholders' Equity, Ending at Sep. 30, 2021 | $ 1,636,899 | $ 1,215 | $ 1,838,620 | $ (190,367) | $ (12,569)

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