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Noncontrolling Interest
12 Months Ended
Dec. 31, 2011
Noncontrolling Interest [Abstract]  
Noncontrolling Interest
(2) Noncontrolling Interest

In the Company's 2009 fiscal third quarter, the Company acquired A3 Integration, LLC and its subsidiaries through A3i Acquisition LLC, an entity in which the Company owned 100% of the non-voting, preferred interests and, from the date of acquisition to January 2011, 75% of the voting, common equity interests. A subsidiary of the Company purchased the remaining 25% of the voting, common equity interests in A3i Acquisition LLC in January 2011.