Quarterly report pursuant to Section 13 or 15(d)

Commitments And Contingencies (Narrative) (Details)

v3.2.0.727
Commitments And Contingencies (Narrative) (Details)
$ in Millions
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2015
USD ($)
equipment
Jun. 30, 2015
USD ($)
equipment
Dec. 31, 2013
claim
Dec. 31, 2012
claim
Dec. 31, 2011
claim
Dec. 31, 2010
claim
Loss Contingencies [Line Items]            
Total unfunded capital commitments $ 432.8 $ 432.8        
Unrecorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year 135.9 135.9        
Unrecorded Unconditional Purchase Obligation, Due in Second Years 233.2 233.2        
Unrecorded Unconditional Purchase Obligation, Due in Third Year 38.8 38.8        
Unrecorded Unconditional Purchase Obligation Due in Fourth Year 19.0 19.0        
Unrecorded Unconditional Purchase Obligation, Due in Fifth Year 5.9 5.9        
Unconditional Purchase Obligation, Amount Eligible for Termination 6.8 $ 6.8        
Unconditional Purchase Obligations, Liquidated Damages 0.7          
Wunstell Action [Member]            
Loss Contingencies [Line Items]            
Claims Filed | claim           2
Master Complaints [Member]            
Loss Contingencies [Line Items]            
Claims Filed | claim           1
Multi-district Litigation [Member]            
Loss Contingencies [Line Items]            
Claims Filed | claim         10  
Darnell Alexander [Member]            
Loss Contingencies [Line Items]            
Claims Filed | claim       410 117  
Abney Litigation [Member]            
Loss Contingencies [Line Items]            
Claims Filed | claim       668    
Abood Litigation [Member]            
Loss Contingencies [Line Items]            
Claims Filed | claim     174      
Prejean [Member]            
Loss Contingencies [Line Items]            
Loss Contingency, Claims Settled, Number   3        
Offshore Support Vessels [Member]            
Loss Contingencies [Line Items]            
Total unfunded capital commitments $ 142.3 $ 142.3        
Unrecorded Unconditional Purchase Obligation, Maximum Quantity | equipment 17 17        
Inland River Liquid Tank Barges - 30,000 Barrel [Member]            
Loss Contingencies [Line Items]            
Total unfunded capital commitments $ 1.7 $ 1.7        
Unrecorded Unconditional Purchase Obligation, Maximum Quantity | equipment 2 2        
Inland River Liquid Tank Barges - 10,000 Barrel [Member]            
Loss Contingencies [Line Items]            
Total unfunded capital commitments $ 6.9 $ 6.9        
Unrecorded Unconditional Purchase Obligation, Maximum Quantity | equipment 8 8        
Inland River Towboats [Member]            
Loss Contingencies [Line Items]            
Total unfunded capital commitments $ 6.8 $ 6.8        
Unrecorded Unconditional Purchase Obligation, Maximum Quantity | equipment 3 3        
U.S.-flag Product Tankers [Member]            
Loss Contingencies [Line Items]            
Total unfunded capital commitments $ 190.3 $ 190.3        
Unrecorded Unconditional Purchase Obligation, Maximum Quantity | equipment 3 3        
Unrecorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year $ 64.8 $ 64.8        
Unrecorded Unconditional Purchase Obligation, Due in Second Years 146.9 146.9        
Unrecorded Unconditional Purchase Obligation, Due in Third Year 20.5 20.5        
U.S. Flag Articulated Tug-Barge [Member]            
Loss Contingencies [Line Items]            
Total unfunded capital commitments $ 41.9 $ 41.9        
Unrecorded Unconditional Purchase Obligation, Maximum Quantity | equipment 1 1        
U.S.-flag Harbor Tugs [Member]            
Loss Contingencies [Line Items]            
Total unfunded capital commitments $ 20.5 $ 20.5        
Unrecorded Unconditional Purchase Obligation, Maximum Quantity | equipment 2 2        
Other Machinery and Equipment [Member]            
Loss Contingencies [Line Items]            
Total unfunded capital commitments $ 22.4 $ 22.4