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Summary of Long-Term Debt (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Debt Instrument [Line Items]    
Accounts receivable securitization program $ 240,000  
Long-term debt 3,309,074 3,730,020
Less-Amounts due within one year (99,312) (2,589)
Long-term debt, net 3,209,762 3,727,431
Notes Payable And Mortgages Payable
    
Debt Instrument [Line Items]    
Notes payable and Mortgages payable (including obligations under capitalized leases of $6,633 in 2013 and $8,267 in 2012) and term loans with varying maturities through 2037; weighted average interest rates of 5.9% in each of 2013 and 2012 (see Note 7 regarding capitalized leases) 37,553 47,216
Revolving Credit And Demand Notes
    
Debt Instrument [Line Items]    
Line of credit facility amount outstanding 25,500 163,500
Term Loan A
    
Debt Instrument [Line Items]    
Line of credit facility amount outstanding 935,308 983,438
Term Loan B Facility
    
Debt Instrument [Line Items]    
Line of credit facility amount outstanding 543,527 737,176
Term Loan- A2
    
Debt Instrument [Line Items]    
Line of credit facility amount outstanding 871,875 894,375
Revenue Bonds
    
Debt Instrument [Line Items]    
Revenue bonds, interest at floating rates of 0.1% at December 31, 2013 and 0.2% at December 31, 2012, with varying maturities through 2015 5,300 5,300
Accounts Receivable Securitization Program
    
Debt Instrument [Line Items]    
Accounts receivable securitization program 240,000 249,000
7.125% Senior Secured Notes due 2016
    
Debt Instrument [Line Items]    
Senior Notes 400,011 400,015
7.00% Senior Unsecured Notes due 2018
    
Debt Instrument [Line Items]    
Senior Notes $ 250,000 $ 250,000