Company Background, Separation from Demand Media and Basis of Presentation (Details)		9 Months Ended
	Aug. 01, 2014 item $ / shares shares	Sep. 30, 2015 item $ / shares shares	Dec. 31, 2014 $ / shares shares	Jul. 31, 2014 $ / shares shares
Company Background, Separation from Demand Media and Basis of Presentation [Abstract]
Number of publicly traded entities after spin-off | item	2
Number of classes of common stock | item		1
Preferred stock, shares outstanding		0	0
Authorized capital stock (in shares)	120,000,000
Common stock shares authorized (in shares)	100,000,000	100,000,000	100,000,000
Common stock par value (in dollars per share) | $ / shares	$ 0.0001	$ 0.0001	$ 0.0001	$ 0.0001
Preferred stock authorized (in shares)	20,000,000	20,000,000	20,000,000
Preferred stock, par value (in dollars per share) | $ / shares	$ 0.0001	$ 0.0001	$ 0.0001
Shares issued	18,400,000	18,974,000	18,661,000	1,000
Shares outstanding	18,400,000	18,974,000	18,661,000	1,000
Separation conversion ratio - one share of Rightside common stock for every five shares of Demand Media	0.20
Duration of the transition services agreement		18 months