Quarterly report pursuant to Section 13 or 15(d)

DEBT AND CREDIT FACILITIES (Narrative) (Details)

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DEBT AND CREDIT FACILITIES (Narrative) (Details)
 6 Months Ended 3 Months Ended 6 Months Ended 6 Months Ended
Jun. 30, 2014
USD ($)
Dec. 31, 2013
USD ($)
Jun. 30, 2014
Revolving Credit Facility [Member]
USD ($)
Mar. 31, 2013
Revolving Credit Facility [Member]
Jun. 30, 2014
Revolving Credit Facility [Member]
USD ($)
Dec. 31, 2013
Revolving Credit Facility [Member]
USD ($)
Jun. 30, 2014
Line of Credit [Member]
USD ($)
Jun. 30, 2014
Line of Credit [Member]
AUD
Dec. 31, 2013
Line of Credit [Member]
USD ($)
Dec. 31, 2013
Line of Credit [Member]
AUD
Jun. 30, 2014
Accounts Receivable Securitization Facility [Member]
USD ($)
Jun. 30, 2014
Accounts Receivable Securitization Facility [Member]
Maximum [Member]
USD ($)
Jun. 30, 2014
Pre-Export Trade Finance Loans [Member]
USD ($)
Jun. 30, 2014
Line of Credit [Member]
USD ($)
Line of Credit Facility [Line Items]                            
Revolving credit facility, borrowing capacity             $ 28,300,000 30,000,000 $ 26,800,000 30,000,000        
Financial covenant, debt to earnings ratio       3.5                    
Total Funded Debt to Total Capitalization     0.45                      
Financial covenant, interest coverage ratio       2.5 3.50                  
Maximum Impairment Permitted to be Excluded from Net Worth Calculation for Debt Covenants 1,000,000,000                          
Credit facility, amount outstanding     275,000,000 [1]   275,000,000 [1] 0 [1] 21,700,000 23,000,000 20,500,000 23,000,000        
Credit facility remaining capacity     1,500,000,000   1,500,000,000 1,700,000,000 6,600,000 7,000,000 6,300,000 7,000,000        
Short-term Debt                     57,300,000 110,000,000 37,400,000 45,000,000
Minimum Number of Days Loan Can be Drawn                           30
Maximum Number of Days Loan can be Drawn 90                          
Letters of credit outstanding $ 48,000,000 $ 48,000,000 $ 5,200,000   $ 5,200,000 $ 8,400,000                
[1] As of June 30, 2014, $275.0 million of revolving loans were drawn under the credit facility. As of December 31, 2013, no revolving loans were drawn under the credit facility. As of June 30, 2014 and December 31, 2013, the principal amount of letter of credit obligations totaled $5.2 million and $8.4 million, respectively, thereby reducing available borrowing capacity to $1.5 billion and $1.7 billion for each period, respectively.