Business Combinations	6 Months Ended
Business Combinations	Jun. 30, 2011
Business Combinations [Abstract]
Business Combinations	3. Business Combinations During 2011, the Company finalized its purchase accounting for the acquisition of Nexius, Inc. An additional $0.7 million was recorded to Goodwill related to the final calculation of opening working capital and tax adjustments of Nexius, Inc. During the second quarter of 2011 the Company recorded an additional $0.1 million in goodwill associated with an adjustment to the fair value of acquired deferred revenue related to the acquisition of Nedstat B.V. The Company continues to evaluate the opening balance sheet for certain opening balance sheet liabilities and tax related items and may continue to adjust the preliminary purchase price allocation after obtaining more information about tax liabilities assumed for the acquisition of Nedstat B.V.

The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable).

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