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Consolidated Balance Sheets (Parenthetical) - $ / shares | Sep. 30, 2019 | Dec. 31, 2018
--- | --- | ---
Common Stock, par value (in dollars per share) | $ 0.001 | $ 0.001
Common Stock, shares authorized (in shares) | 200,000,000 | 200,000,000
Common Stock, shares issued (in shares) | 62,168,000 | 68,085,000
Common Stock, shares outstanding (in shares) | 62,168,000 | 68,085,000
Preferred Stock Series D, G and I |  |
Liquidation preference (in dollars per share) | $ 25 | $ 25
Preferred Stock Series J |  |
Liquidation preference (in dollars per share) | $ 50.00 | $ 50

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