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Debt Obligations (Details) $ / shares in Units, shares in Thousands, $ in Thousands | 1 Months Ended |  |  |  |
--- | --- | --- | --- | --- | ---
Nov. 30, 2014 USD ($) | Sep. 30, 2021 USD ($) shares | Dec. 31, 2020 shares | Sep. 28, 2020 USD ($) | Nov. 20, 2014 $ / shares
Debt Instrument [Line Items] |  |  |  |  |
Proceeds from Convertible Debt | $ 87,500 |  |  |  |
Conv Debt Instrument Interest Rate Stated Percentage |  |  |  |  | 5.25%
Debt Instrument, Convertible, Conversion Ratio | 118.4553 |  |  |  |
Debt Instrument, Convertible, Conversion Price | $ / shares |  |  |  |  | $ 8.442
Debt Instrument, Fair Value Disclosure |  | $ 11,900 |  |  |
Common stock, shares issued | shares |  | 149,987 | 142,289 |  |
Convertible debt exchange Remaining Notes |  | $ 11,700 |  |  |
Convertible debt exchange - Total Principal Amount |  |  |  | $ 75,800 |

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- Definition Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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