Red Robin Gourmet Burgers, Inc. Quarterly report pursuant to Section 13 or 15(d)

Acquisitions of Red Robin Franchised Restaurants (Details) (USD $)		0 Months Ended	3 Months Ended		0 Months Ended						0 Months Ended
	Jul. 14, 2014 Series of business acquisitions, 2014	Mar. 24, 2014 March 2014, acquisition of four franchise restaurants franchisee restaurant	Oct. 05, 2014 March 2014, acquisition of four franchise restaurants	Mar. 24, 2014 March 2014, acquisition of four franchise restaurants restaurant	Jul. 14, 2014 July 2014, Acquisition of 32 Red Robin franchised restaurant	Jul. 14, 2014 July 2014, Acquisition of 32 Red Robin franchised restaurant restaurant	Jul. 14, 2014 Acquired franchise rights Series of business acquisitions, 2014	Jul. 14, 2014 Liquor licenses Series of business acquisitions, 2014	Jul. 14, 2014 United States July 2014, Acquisition of 32 Red Robin franchised restaurant restaurant	Jul. 14, 2014 Canada July 2014, Acquisition of 32 Red Robin franchised restaurant restaurant	Jul. 14, 2014 Minimum Acquired franchise rights Series of business acquisitions, 2014	Jul. 14, 2014 Maximum Acquired franchise rights Series of business acquisitions, 2014
Business Acquisition [Line Items]
Number of restaurants acquired from franchisees				4		32			14	18
Number of franchisees		1
Purchase price, cash		$ 8,000,000			$ 40,700,000
Acquisition costs			0
Intangible assets	$ 9,394,000						$ 7,600,000	$ 1,300,000
Amortization period of intangible assets											10 years	14 years