The Company (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	9 Months Ended
	May. 31, 2015	Sep. 30, 2015
Public Offering of Common Stock
Proceeds from public offering of common stock, net of issuance costs		$ 148,439
Underwritten public offering
Public Offering of Common Stock
Aggregate common stock sold (in shares)	8,337,500
Share price	$ 19.00
Proceeds from public offering of common stock, net of issuance costs	$ 148,400