XML 52 R35.htm IDEA: XBRL DOCUMENT v2.4.0.6
Nature of Business, Acquisitions, Significant Accounting Policies and Recent Accounting Pronouncements (Details 2)
 3 Months Ended 12 Months Ended 1 Months Ended 12 Months Ended 1 Months Ended
Dec. 31, 2011
USD ($)
Sep. 30, 2011
USD ($)
Jun. 30, 2011
USD ($)
Mar. 31, 2011
USD ($)
Dec. 31, 2010
USD ($)
Sep. 30, 2010
USD ($)
Jun. 30, 2010
USD ($)
Mar. 31, 2010
USD ($)
Dec. 31, 2011
USD ($)
Dec. 31, 2010
USD ($)
Dec. 31, 2009
USD ($)
Apr. 30, 2009
Henty Oil Limited, Tank and Marine Engineering Limited and Henty Shipping Services Limited (collectively, "Henty")
USD ($)
business
Dec. 31, 2011
Henty Oil Limited, Tank and Marine Engineering Limited and Henty Shipping Services Limited (collectively, "Henty")
USD ($)
Y
Dec. 31, 2011
Henty Oil Limited, Tank and Marine Engineering Limited and Henty Shipping Services Limited (collectively, "Henty")
GBP (£)
Dec. 31, 2010
Henty Oil Limited, Tank and Marine Engineering Limited and Henty Shipping Services Limited (collectively, "Henty")
USD ($)
Dec. 31, 2010
Henty Oil Limited, Tank and Marine Engineering Limited and Henty Shipping Services Limited (collectively, "Henty")
GBP (£)
Sep. 30, 2010
Henty Oil Limited, Tank and Marine Engineering Limited and Henty Shipping Services Limited (collectively, "Henty")
GBP (£)
Apr. 30, 2009
Henty Oil Limited, Tank and Marine Engineering Limited and Henty Shipping Services Limited (collectively, "Henty")
GBP (£)
Mar. 31, 2006
Tramp Oil Brazil
USD ($)
Y
Acquisitions                                      
Number of businesses acquired                       2              
Estimated purchase price                                      
Estimated aggregate purchase price                       $ 61,300,000              
Estimated cash consideration                       47,500,000              
Purchase price allocation                                      
Acquisition of businesses, net of cash acquired                 122,702,000 177,807,000 51,982,000 3,400,000              
Promissory notes issued 9,028,000       26,500,000       9,028,000 26,500,000 4,300,000 4,300,000              
Estimated contingent consideration (Earn-out)                       6,200,000              
Fixed assets                       5,600,000              
Identifiable intangible assets                       22,000,000              
Goodwill                       29,900,000              
Working capital                       9,200,000              
Long-term deferred tax liabilities                       5,400,000              
Earn-out                                      
Period for acquiree to meet certain operating targets for earn-out payment (in years)                         3 3          
Maximum Earn-out payment prior to purchase agreement amendment                                 9,000,000    
Maximum Earn-out payment after purchase agreement amendment                         9,300,000       6,000,000    
Minimum Earn-out payment established in consideration for the reduction in the maximum Earn-out                         4,200,000 2,700,000          
Fair value of the earn-out liability                       6,200,000 4,200,000 2,700,000       4,200,000  
Decrease in the estimated fair value of the Earn-out liability                         800,000 500,000 1,500,000 1,000,000      
Remaining voting interest acquired (as a percent)                                     33.00%
Aggregate purchase price                                     2,700,000
Increase in purchase price if certain operating income targets were achieved over a three-year period                                     4,500,000
Number of years over which certain operating income targets must be achieved                                     3
Additional purchase price paid                                     4,500,000
Revenue 9,323,947,000 9,510,792,000 8,708,709,000 7,079,406,000 5,828,777,000 4,987,074,000 4,397,275,000 3,918,021,000 34,622,854,000 19,131,147,000 11,295,177,000                
Net income $ 50,062,000 $ 52,655,000 $ 50,203,000 $ 41,109,000 $ 39,430,000 $ 36,755,000 $ 36,977,000 $ 33,703,000 $ 194,029,000 $ 146,865,000 $ 117,139,000