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Preferred Stock	3 Months Ended
Preferred Stock	Mar. 31, 2020
Temporary Equity Disclosure [Abstract]
Preferred Stock	Preferred Stock Series A Preferred Stock In December 2016, the Company issued 120,000 shares of Series A convertible perpetual preferred stock with an aggregate liquidation preference of $120 million and an initial fair value of $142 million. The convertible preferred stock pays quarterly cash dividends at a rate of 8% per year ($9.6 million per year). Each share of convertible preferred stock is convertible at any time, at the option of the holder, into 44.9438 shares of common stock for a total of 5,393,000 shares (reflecting an initial conversion price of approximately $22.25 per share of common stock), subject to customary anti-dilution adjustments.