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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands | Total | Common Stock | Additional Paid-in Capital | Accumulated Other Comprehensive Income (Loss) | Accumulated Deficit
--- | --- | --- | --- | --- | ---
Beginning balance (in shares) at Mar. 31, 2017 |  | 91,500,091 |  |  |
Beginning balance at Mar. 31, 2017 | $ 288,601 | $ 91 | $ 412,762 | $ (9,642) | $ (114,610)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Issuance of common stock under stock plans, less withholding (in shares) |  | 2,709,990 |  |  |
Issuance of common stock under stock plans, less withholding | 2,182 | $ 3 | 2,179 |  |
Repurchases of common stock (in shares) |  | (1,362,727) |  |  |
Repurchases of common stock | (17,934) | $ (1) | (17,933) |  |
Stock-based compensation expense | 28,782 |  | 28,782 |  |
Unrealized investment gain (loss) | (259) |  |  | (259) |
Foreign currency translation adjustment | 4,256 |  |  | 4,256 |
Net loss | (104,497) |  |  |  | (104,497)
Ending balance (in shares) at Mar. 31, 2018 |  | 92,847,354 |  |  |
Ending balance at Mar. 31, 2018 | 218,774 | $ 93 | 425,790 | (5,645) | (201,464)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Issuance of common stock under stock plans, less withholding (in shares) |  | 3,272,534 |  |  |
Issuance of common stock under stock plans, less withholding | 4,486 | $ 3 | 4,483 |  |
Stock-based compensation expense | 45,548 |  | 45,548 |  |
Unrealized investment gain (loss) | 473 |  |  | 473 |
Foreign currency translation adjustment | (2,181) |  |  | (2,181) |
Equity component of convertible senior notes, net of issuance costs | 31,128 |  | 31,128 |  |
Net loss | (88,739) |  |  |  | (88,739)
Ending balance (in shares) at Mar. 31, 2019 |  | 96,119,888 |  |  |
Ending balance at Mar. 31, 2019 | 249,390 | $ 96 | 506,949 | (7,353) | (250,302)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Issuance of common stock under stock plans, less withholding (in shares) |  | 4,452,267 |  |  |
Issuance of common stock under stock plans, less withholding | 7,777 | $ 4 | 7,773 |  |
Issuance of common stock related to acquisition (in shares) |  | 2,606,466 |  |  |
Issuance of common stock related to acquisition | 35,840 | $ 3 | 35,837 |  |
Stock-based compensation expense | 71,821 |  | 71,821 |  |
Unrealized investment gain (loss) | (203) |  |  | (203) |
Foreign currency translation adjustment | (4,620) |  |  | (4,620) |
Equity component of convertible senior notes, net of issuance costs | 3,094 |  | 3,094 |  |
Net loss | (172,368) |  |  |  | (172,368)
Ending balance (in shares) at Mar. 31, 2020 |  | 103,178,621 |  |  |
Ending balance at Mar. 31, 2020 | $ 190,731 | $ 103 | $ 625,474 | $ (12,176) | $ (422,670)

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