Quarterly report pursuant to Section 13 or 15(d)

ACQUISITIONS (Details)

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ACQUISITIONS (Details) (USD $)
Sep. 30, 2011
Dec. 31, 2010
ACQUISITIONS    
Carrying amount of goodwill $ 210,898,000 $ 210,779,000
Carrying amount of goodwill in foreign countries 9,500,000 9,400,000
Carrying amount of customer contracts and other intangible assets 140,598,000 147,556,000
Carrying amount of customer contracts and other intangible assets in foreign countries $ 6,200,000 $ 4,000,000