XML 72 R65.htm IDEA: XBRL DOCUMENT v3.10.0.1
Commitments and Contingencies - Additional Information - Petobras (Details) - USD ($)
$ in Millions
1 Months Ended
Mar. 31, 2016
Jun. 30, 2018
Dec. 31, 2017
Loss Contingencies [Line Items]      
Loss contingency accrual   $ 43.0  
Petrobras [Member]      
Loss Contingencies [Line Items]      
Loss contingency accrual     $ 10.0
FPSO segment | Petrobras [Member]      
Loss Contingencies [Line Items]      
Percentage of rate reduction claim 2.00%    
Estimated claim $ 11.3    
Loss contingency accrual   10.6  
Portion not accrued   $ 0.7