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v3.22.1

Basis of Presentation (Tables) | 3 Months Ended
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Mar. 31, 2022
Significant Accounting Policies |
Schedule of adjustments to Consolidated Balance Sheets and adjustments to calculations of basic and diluted income per share | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2021 | ​ | Adoption of ASU 2020-06 | ​ | January 1, 2022
​ | ​ | (in thousands)
Balance Sheet line item: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Long-term debt | ​ | $ | 229,438 | ​ | $ | 44,260 | ​ | $ | 273,698
Additional paid-in capital | ​ | ​ | 1,116,921 | ​ |  | (56,801) | ​ |  | 1,060,120
Accumulated deficit | ​ | ​ | (681,283) | ​ |  | 12,541 | ​ |  | (668,742)
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three months ended March 31, 2022
​ |  | Under ASU 2020-06 |  | Under legacy accounting |  | Difference
Income per common share: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Basic income per common share | ​ | $ | 0.27 | ​ | $ | 0.22 | ​ | $ | 0.05
Diluted income per common share | ​ | ​ | 0.24 | ​ | ​ | 0.20 | ​ | ​ | 0.04

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