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Supplemental Financial Information - Accounts Receivable, Net of Allowance for Doubtful Accounts (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Receivables [Abstract]        
Trade receivables $ 473,013 $ 478,930    
Value added tax receivables 19,407 13,884    
Amounts held in escrow 3,066 11,555    
Interest receivable 7 6    
Related party receivables 587 527    
Other 615 216    
Receivables Gross Current, Total 496,695 505,118    
Allowance for bad debts (27,340) (5,458) (6,867) (31,908)
Total $ 469,355 $ 499,660