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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' DEFICIT - USD ($) | Total | Preferred Stock [Member] | Preferred Stock [Member] Preferred Series B [Member] | Common Stock [Member] Common Class A [Member] | Common Stock [Member] Common Class B [Member] | Excess of Capital over Par Value [Member] | Accumulated Deficit [Member] | Accumulated Other Comprehensive Income (Loss) [Member]
--- | --- | --- | --- | --- | --- | --- | --- | ---
Beginning Balance at Dec. 31, 2019 | $ (336,900,000) | $ 4,600,000 |  | $ 800,000 | $ 100,000 | $ 61,500,000 | $ (405,000,000.0) | $ 1,100,000
Net income (loss) | 11,300,000 |  |  |  |  |  | 11,300,000 |
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture | 400,000 |  |  |  |  | 300,000 |  | 100,000
Ending Balance at Mar. 31, 2020 | (325,200,000) |  | $ 4,600,000 | 800,000 | 100,000 | 61,800,000 | (393,700,000) | 1,200,000
Beginning Balance at Dec. 31, 2020 | (320,600,000) | 100,000 |  | 1,100,000 | 100,000 | 85,000,000.0 | (407,700,000) | 800,000
Net income (loss) | 5,100,000 |  |  |  |  |  | 5,100,000 |
Stock issued during period | 23,800,000 |  |  | 100,000 |  | 23,700,000 |  |
Receivable from issuance of stock | (700,000) |  |  |  |  | (700,000) |  |
Exchange of preferred stock for common stock and common stock warrant | (100,000) | 7,500,000 |  |  |  | 7,500,000 | (7,600,000) |
Reclassification of stock-based compensation liability to equity | 7,500,000 |  |  |  |  | 7,500,000 |  |
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture | 200,000 |  |  |  |  | 300,000 |  | (100,000)
Ending Balance at Mar. 31, 2021 | $ (284,800,000) | $ 100,000 |  | $ 1,200,000 | $ 100,000 | $ 123,300,000 | $ (410,200,000) | $ 700,000

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