XML 144 R130.htm IDEA: XBRL DOCUMENT v3.4.0.3
Commitments and Contingencies - Additional Information (Detail)
$ in Thousands
 1 Months Ended 3 Months Ended 12 Months Ended
Jan. 31, 2016
USD ($)
Sep. 30, 2015
USD ($)
Vessel
T
hp
Jul. 31, 2015
USD ($)
Jun. 30, 2015
USD ($)
Vessel
T
hp
May. 31, 2015
USD ($)
Apr. 30, 2015
Vessel
T
Jun. 30, 2015
USD ($)
T
hp
Mar. 31, 2016
USD ($)
Vessel
T
Dec. 31, 2015
USD ($)
Significant Purchase and Supply Commitment [Line Items]                  
Cash compensation on termination of employment, maximum               $ 57,000  
Number of Vessels, commitments | Vessel               6  
Number of vessels under construction | Vessel   9              
Refunds from cancelled vessel construction contracts $ 12,000             $ 46,119  
Accrued interest owing on the returned installments   $ 3,700              
Refunds from cancelled vessel construction contracts   31,000           $ 31,000  
Relieved obligation   $ 75,000              
Fast, Crew/Supply Boat                  
Significant Purchase and Supply Commitment [Line Items]                  
Number of vessels under construction | Vessel               1  
Impairment charge on amounts not recoverable               $ 2,400  
Insurance coverage for the progress payments made on the vessel by the third party credit support               90.00%  
Insurance coverage by the third party credit support for the carrying value of the accumulated costs               $ 2,400  
Fast, Crew/Supply Boat | Reclassification of Construction in Progress to Other Non-Current Assets                  
Significant Purchase and Supply Commitment [Line Items]                  
Committed and invested amount, remaining               $ 5,600  
Deepwater PSVs                  
Significant Purchase and Supply Commitment [Line Items]                  
Significant commitment, new construction deadweight tons capacity range, low | T               4,700  
Significant commitment, new construction deadweight tons capacity range, high | T               6,100  
Significant commitment, new construction final delivery date               2017-05  
Number of vessels under construction | Vessel   6       2   6 [1]  
Significant commitment, new construction deadweight tons capacity | T   4,700       3,800      
Impairment charge on amounts not recoverable               $ 1,900  
Aggregate installment payment         $ 5,400     183,904 [1]  
Significant commitment, new construction delivery date         Jun. 30, 2016        
Obligation to be relieved         $ 21,700        
Aggregate installment payment payment with interest         $ 11,900        
Vessel Commitments                  
Significant Purchase and Supply Commitment [Line Items]                  
Unfunded capital commitment [1]               $ 67,516  
Number of Vessels, commitments | Vessel [1]               6  
Unfunded capital commitment, net of expected refunds               $ 37,000  
Expected refunds from shipyards               31,000  
Vessels Under Construction                  
Significant Purchase and Supply Commitment [Line Items]                  
Number of vessels under construction | Vessel       6          
Significant commitment, new construction brake horsepower | hp       7,145     7,145    
Significant commitment, new construction deadweight tons capacity | T       4,700     4,700    
Refunds from cancelled vessel construction contracts     $ 12,000 $ 24,000       36,000  
Accrued interest owing on the returned installments               $ 3,500  
Impairment charge on amounts not recoverable             $ 800    
Vessels Under Construction | Shipyard Credit                  
Significant Purchase and Supply Commitment [Line Items]                  
Offset against other payment                 $ 3,500
Towing Supply Vessels                  
Significant Purchase and Supply Commitment [Line Items]                  
Number of vessels under construction | Vessel   3              
Significant commitment, new construction brake horsepower | hp   7,145              
[1] (A) Six additional option vessels and a fast supply boat are not included in the table above.