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Accounts Receivable Net (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Customer receivables $ 246,528 $ 226,577
Other current receivables 2,974 3,542
Accounts Receivable, gross 249,502 230,119
Less allowances (4,081) (6,069)
Total $ 245,421 $ 224,050