Related Party Transactions (Notes)	9 Months Ended
Related Party Transactions (Notes)	Sep. 28, 2013
Related Party Transactions [Abstract]
Related Party Transactions Disclosure [Text Block]	Related Party Transactions On July 30, 2013, our wholly owned subsidiary, Cerner Property Development, Inc., entered into a Real Estate Purchase Agreement (the "Agreement") with Trails Properties II, Inc., a Missouri corporation ("Trails"), to purchase approximately 237 acres of land located in Kansas City, Missouri. Trails is an entity controlled by Neal Patterson, Chairman of the Board of Directors and Chief Executive Officer of Cerner Corporation, and Clifford Illig, Vice Chairman of the Board of Directors of Cerner Corporation. The total purchase price of the property is $45.5 million, subject to adjustment under the Agreement. The transaction is expected to close, on or about December 27, 2013, subject to certain conditions defined in the Agreement. The property is being acquired as a site for future office space development to accommodate our anticipated growth.

The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.

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