Related Party Transactions	12 Months Ended
Related Party Transactions	Dec. 31, 2014
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions Acquisition of Mandiant Our Chief Executive Officer (“CEO”) and Chairman of our board of directors, served as the Chairman of the board of directors of Mandiant from April 2011 to October 2013, and served as an advisor to Mandiant from October 2013 until the closing of the merger in December 2013. In addition, as of immediately prior to the completion of the merger, the CEO held 740,166 shares of Mandiant common stock, of which 328,960 shares were unvested shares subject to forfeiture in the event of his termination as a service provider to Mandiant. Pursuant to the terms of the equity agreements governing the CEO’s shares of Mandiant common stock, all of the CEO’s unvested Mandiant shares immediately vested in connection with the merger. Upon the closing of the merger, after giving effect to the vesting acceleration described in the preceding sentence, the CEO received aggregate merger consideration of approximately $28.6 million, consisting of approximately $3.9 million in cash and 601,439 shares of our common stock, of which 87,335 shares were deposited into a third-party escrow account as partial security for the indemnity obligations of Mandiant and its former stockholders.

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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