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v3.21.1

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands | Total | Common stock and paid-in capital | Accumulated deficit | Accumulated other comprehensive income (loss)
--- | --- | --- | --- | ---
Balance, beginning of period at Dec. 31, 2019 |  | $ 458,316 | $ (185,181) | $ (923)
Issuance of common stock from exercise of equity awards and employee stock purchase plan |  | 1,979 |  |
Payment of withholding taxes related to net share settlement of equity awards |  | (34,267) |  |
Stock-based compensation expense |  | 7,515 |  |
Net income | $ 68,936 |  | 68,936 |
Foreign currency translation adjustments | (168) |  |  | (168)
Balance, end of period at Mar. 31, 2020 | 316,207 | 433,543 | (116,245) | (1,091)
Balance, beginning of period at Dec. 31, 2020 | 483,993 | 534,745 | (51,186) | 434
Issuance of common stock from exercise of equity awards and employee stock purchase plan |  | 214 |  |
Payment of withholding taxes related to net share settlement of equity awards |  | (9,185) |  |
Equity component of convertible notes issued, net of tax |  | 207,962 |  |
Cost of convertible notes hedge related to the convertible notes issued, net of tax |  | (213,322) |  |
Sale of warrants related to the convertible notes issued |  | 220,800 |  |
Equity component of partial settlement of convertible notes |  | (966,483) |  |
Cost of reacquired equity component on partial settlement of convertible notes |  | 962,114 |  |
Stock-based compensation expense |  | 14,844 |  |
Net income | 31,698 |  | 31,698 |
Foreign currency translation adjustments | 206 |  |  | 206
Balance, end of period at Mar. 31, 2021 | $ 732,841 | $ 751,689 | $ (19,488) | $ 640

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