Commitments and Contingencies - Additional Information (Details) $ in Millions	9 Months Ended
	Sep. 30, 2015 USD ($)
Commitments And Contingencies [Line Items]
Loss Contingency, Lawsuit Filing Date	On March 11, 2015, a putative stockholder class action lawsuit was filed against us, the members of our board of directors, certain of our executive officers and the underwriters of our initial public offering (“IPO”): Nguyen v. Coupons.com Incorporated, Case No. CGC-15-544654 (California Superior Court, San Francisco County). The complaint asserts claims under the Securities Act and seeks unspecified damages and other relief on behalf of a putative class of persons and entities who purchased stock pursuant or traceable to the registration statement and prospectus for our IPO. Plaintiff Nguyen requested and obtained a dismissal without prejudice of his San Francisco action and filed another complaint with substantially the same allegations in the Santa Clara County Superior Court, Nguyen v. Coupons.com Incorporated, Case No. 1-15-CV-278777 (California Superior Court, Santa Clara County) (Mar. 30, 2015). Three other complaints with substantially the same allegations have also been filed: O’Donnell v. Coupons.com Incorporated, Case No. 1-15-CV-278399 (California Superior Court, Santa Clara County) (Mar. 20, 2015); So v. Coupons.com Incorporated, Case No. 1-15-CV-278774 (California Superior Court, Santa Clara County) (Mar. 30, 2015); and Silverberg v. Coupons.com Incorporated, Case No. 1-15-CV-278891 (California Superior Court, Santa Clara County) (Apr. 2, 2015). On May 7, 2015, the Santa Clara court consolidated the Nguyen, So and Silverberg actions with the O’Donnell action
Marketing Arrangements
Commitments And Contingencies [Line Items]
Long-term commitments	$ 7.2
Service Agreements
Commitments And Contingencies [Line Items]
Initial non-refundable payments under service agreements	10.4
Remaining non-refundable obligation under service agreements	$ 3.7
Minimum
Commitments And Contingencies [Line Items]
Term of noncancelable operating lease	1 year
Minimum | Marketing Arrangements
Commitments And Contingencies [Line Items]
Period of other long-term commitments	2015
Maximum
Commitments And Contingencies [Line Items]
Term of noncancelable operating lease	5 years
Maximum | Marketing Arrangements
Commitments And Contingencies [Line Items]
Period of other long-term commitments	2034