XML 29 R18.htm IDEA: XBRL DOCUMENT v3.10.0.1
Preferred Stock (Notes)
9 Months Ended
Sep. 30, 2018
Temporary Equity Disclosure [Abstract]  
Preferred Stock
Preferred Stock

Series A Preferred Stock

In December 2016, the Company issued 120 thousand 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 thousand shares (reflecting an initial conversion price of approximately $22.25 per share of common stock), subject to customary anti-dilution adjustments.