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CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020
Convertible debt, equity component, deferred tax | $ 700 | $ 6,200
Payments for common stock issuance costs | 6,828 | 0
Issuance cost, equity component | 2,100 |
Private Placement |  |
Payments for common stock issuance costs | $ 6,800 |
Public Offering |  |
Payments for common stock issuance costs |  | 6,000
Convertible Senior Notes Due 2024 |  |
Convertible debt, equity component, deferred tax |  | 3,000
Convertible Senior Notes Due 2026 |  |
Payments for common stock issuance costs |  | $ 900

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- Definition The cash outflow for cost incurred directly with the issuance of an equity security. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3291-108585 + Details
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