Quarterly report pursuant to Section 13 or 15(d)

General - Carrying Amounts and Classification of Assets and Liabilities for VIEs (Detail)

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General - Carrying Amounts and Classification of Assets and Liabilities for VIEs (Detail) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2013
Dec. 31, 2012
Organization Consolidation And Presentation Of Financial Statements [Line Items]    
Current assets $ 862,059 $ 940,312
Noncurrent assets 399,993 399,908
Total assets 1,262,052 1,340,220
Current liabilities 207,277 292,541
Noncurrent liabilities 125,617 128,590
Total liabilities 332,894 421,131
Variable interest entity, primary beneficiary [Member] | HF Logistics-SKX, LLC [Member]
    
Organization Consolidation And Presentation Of Financial Statements [Line Items]    
Current assets 2,671 5,239
Noncurrent assets 134,492 133,235
Total assets 137,163 138,474
Current liabilities 2,632 1,958
Noncurrent liabilities 80,357 80,678
Total liabilities 82,989 82,636
Variable interest entity, primary beneficiary [Member] | Distribution joint ventures [Member]
    
Organization Consolidation And Presentation Of Financial Statements [Line Items]    
Current assets 41,908 34,781
Noncurrent assets 8,655 7,978
Total assets 50,563 42,759
Current liabilities 13,716 13,222
Noncurrent liabilities 33 34
Total liabilities $ 13,749 $ 13,256