Stockholders' Equity (Details) $ / shares in Units, $ in Thousands			12 Months Ended
	Dec. 22, 2014 USD ($) $ / shares shares	Nov. 26, 2014 $ / shares	Dec. 31, 2015 $ / shares	Dec. 31, 2014 USD ($) $ / shares shares	Nov. 25, 2014 $ / shares
Class of Stock [Line Items]
Net proceeds from sale of stock | $				$ 209,990
Stock split		2	1
Common stock par value (in dollars per share) | $ / shares		$ 0.005	$ 0.005	$ 0.005	$ 0.01
Preferred stock par value (in dollars per share) | $ / shares		$ 0.005			$ 0.01
Common Stock
Class of Stock [Line Items]
Shares of common stock sold (shares) | shares				11,500,000
Net proceeds from sale of stock | $				$ 57
Common Stock | IPO [Member]
Class of Stock [Line Items]
Shares of common stock sold (shares) | shares	11,500,000
Common stock sold (in dollars per share) | $ / shares	$ 20
Net proceeds from sale of stock | $	$ 210,000