Quarterly report pursuant to Section 13 or 15(d)

Note 10 - Noncontrolling Interests in Subsidiaries - Noncontrolling Interest (Details)

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Note 10 - Noncontrolling Interests in Subsidiaries - Noncontrolling Interest (Details) - USD ($)
$ in Thousands
Jun. 30, 2018
Dec. 31, 2017
Noncontrolling interest $ 29,455 $ 14,975
Falcon Global [Member]    
Noncontrolling interest percent 28.00%  
Noncontrolling interest $ 26,967 12,087
Windcat Workboats [Member]    
Noncontrolling interest percent 12.50%  
Noncontrolling interest $ 2,201 2,608
Other Noncontrolling Interests [Member]    
Noncontrolling interest percent 1.80%  
Noncontrolling interest $ 287 $ 280