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Major Clients
12 Months Ended
Dec. 31, 2011
Major Clients [Abstract]  
MAJOR CLIENTS

(3) MAJOR CLIENTS

Wal-Mart Stores Inc. (and its affiliated companies) accounted for approximately 10.2% of total revenues in 2011, 12.1% in 2010 and 12.3% in 2009. We recorded these revenues primarily in the Recovery Audit Services – Americas Segment.