Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical)

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Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $)
In Thousands, except Share data
Sep. 30, 2011
Dec. 31, 2010
CURRENT ASSETS:    
Allowance for doubtful accounts $ 2,199 $ 3,202
Accumulated depreciation and amortization of property $ 179,713 $ 166,912
SHAREHOLDERS' EQUITY:    
Common shares, par value $ 0.001 $ 0.001
Common shares, shares authorized 1,000,000,000 1,000,000,000
Common shares, shares outstanding 116,100,000 117,800,000