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Description of Business	6 Months Ended
Description of Business	Jun. 30, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description Of Business	DESCRIPTION OF BUSINESS CBOE Holdings, Inc. is the holding company for Chicago Board Options Exchange, Incorporated, CBOE Futures Exchange, LLC, C2 Options Exchange, Incorporated and other subsidiaries. The primary business of the Company is the operation of markets for the trading of listed, or exchange-traded, derivatives contracts on four broad product categories: 1) options on various market indexes (index options), 2) futures on the VIX Index and other products, 3) options on the stocks of individual corporations (equity options) and 4) options on other exchange-traded products (ETP options), such as exchange-traded funds (ETF options) and exchange-traded notes (ETN options). The Company owns and operates three stand-alone exchanges, but reports the results of its operations in one reporting segment. CBOE is our primary options market and offers trading in listed options through a single system that integrates electronic trading and traditional open outcry trading on our trading floor in Chicago. This integration of electronic trading and traditional open outcry trading into a single exchange is known as our Hybrid trading model. CFE, our all-electronic futures exchange, offers trading of futures on the VIX Index and other products. C2 is our all-electronic exchange that also offers trading for listed options, but with a different market model and fee structure than CBOE. All of our exchanges operate on our proprietary technology platform known as CBOE Command.