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Sale of Additional Common Stock	9 Months Ended
	Sep. 30, 2018
Sale of Additional Common Stock
Sale of Additional Common Stock	6. Sale of Additional Common Stock In March 2018, we completed the sale of 8,395,000 shares of common stock which included shares issued pursuant to our underwriters’ exercise of their over-allotment option pursuant to a follow-on financing. We received net proceeds of $245.5 million after underwriting discounts, commissions and offering expenses.

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Represents information pertaining to the sale of additional common stock

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