Annual report pursuant to Section 13 and 15(d)

Note 1 - Nature of Operations and Accounting Policies (Tables)

v3.19.1
Note 1 - Nature of Operations and Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2018
Notes Tables  
Deferred Revenue, by Arrangement, Disclosure [Table Text Block]
   
201
8
   
201
7
   
201
6
 
Balance at beginning of year
  $
10,104
    $
6,953
    $
6,953
 
Revenues deferred during the year
   
3,600
     
4,699
     
 
Revenues recognized during the year
   
(12,377
)    
(1,548
)
   
 
Balance at end of year
  $
1,327
    $
10,104
    $
6,953
 
Schedule of Cash, Cash Equivalents and Restricted Cash [Table Text Block]
   
2018
   
2017
   
2016
 
Cash    $
95,195
     $
110,234
     $
117,309
 
Cash equivalents    
     
     
 
Restricted cash    
1,657
     
2,317
     
1,462
 
Total    $
96,852
     $
112,551
     $
118,771
 
Property, Plant and Equipment, Estimated Useful Life [Table Text Block]
Offshore Support Vessels:
       
Crew transfer vessels
   
10
 
All other offshore support vessels (excluding crew transfer)
   
20
 
Property, Plant and Equipment [Table Text Block]
   
Historical Cost
(1)
   
Accumulated Depreciation
   
Net Book Value
 
201
8
 
 
 
 
 
 
 
 
 
 
 
 
Offshore support vessels:
                       
AHTS
  $
197,343
    $
(168,731
)   $
28,612
 
FSV
(2)
   
404,310
     
(98,580
)    
305,730
 
Supply
   
64,284
     
(37,202
)    
27,082
 
Standby safety
   
123,731
     
(97,951
)    
25,780
 
Specialty
   
25,683
     
(20,433
)    
5,250
 
Liftboats
   
329,473
     
(71,887
)    
257,586
 
Crew transfer
   
73,589
     
(46,614
)    
26,975
 
General machinery and spares
   
8,457
     
(8,390
)    
67
 
Other
(3)
   
15,863
     
(11,484
)    
4,379
 
    $
1,242,733
    $
(561,272
)   $
681,461
 
2017
 
 
 
 
 
 
 
 
 
 
 
 
Offshore support vessels:
                       
AHTS
  $
198,222
    $
(174,159
)
  $
24,063
 
FSV
(2)
   
424,865
     
(89,980
)
   
334,885
 
Supply
   
105,360
     
(51,494
)
   
53,866
 
Standby safety
   
118,414
     
(97,603
)
   
20,811
 
Specialty
   
30,529
     
(19,304
)
   
11,225
 
Liftboats
   
196,504
     
(54,161
)
   
142,343
 
Crew transfer
   
65,976
     
(40,358
)
   
25,618
 
General machinery and spares
   
14,385
     
(13,244
)
   
1,141
 
Other
(3)
   
25,581
     
(19,857
)
   
5,724
 
    $
1,179,836
    $
(560,160
)
  $
619,676
 
Schedule of Deferred Gain [Table Text Block]
   
2018
   
2017
   
2016
 
Balance at beginning of year
  $
23,553
    $
32,035
    $
40,234
 
Amortization of deferred gains included in operating expenses as reduction to rental expense
   
(8,037
)    
(8,118
)
   
(8,199
)
Recognition of deferred gains included in losses on asset dispositions and impairments, net
   
(4,490
)    
     
 
Other
   
     
(364
)
   
 
Balance at end of year
  $
11,026
    $
23,553
    $
32,035
 
   
201
8
   
2017
   
2016
 
Balance at beginning of year
  $
1,453
    $
1,875
    $
3,064
 
Amortization of deferred gains included in losses on asset dispositions and impairments, net
   
(25
)    
     
(36
)
Other
   
(635
)    
(422
)
   
(1,153
)
Balance at end of year
  $
793
    $
1,453
    $
1,875
 
Comprehensive Income (Loss) [Table Text Block]
   
SEACOR Marine Holdings Inc. Stockholders' Equity
   
Noncontrolling Interests
   
 
 
 
   
Foreign
Currency Translation Adjustments
   
Derivative
Gains
(Losses) on
Cash Flow
Hedges, net
   
Total
   
Foreign
Currency Translation Adjustments
   
Derivative
Gains
(Losses) on
Cash Flow
Hedges, net
   
Other Comprehensive Loss
 
Year Ended December 31, 2015
  $
(5,985
)
  $
(110
)   $
(6,095
)
  $
(529
)
  $
     
 
 
Other comprehensive (loss) income
   
(8,351
)
   
286
 
   
(8,065
)
   
(1,085
)
   
(17
)   $
(9,167
)
Income tax benefit (expense)
   
2,923
     
(100
)    
2,823
     
     
     
2,823
 
Year Ended December 31, 2016
   
(11,413
)
   
76
 
   
(11,337
)
   
(1,614
)
   
(17
)   $
(6,344
)
Other comprehensive income
   
4,397
 
   
703
     
5,100
 
   
257
 
   
18
 
  $
5,375
 
Income tax (expense)
(1)
   
(6,179
)    
(77
)
   
(6,256
)    
     
     
(6,256
)
Year Ended December 31, 2017
   
(13,195
)
   
702
     
(12,493
)
   
(1,357
)
   
1
 
  $
(881
)
Other comprehensive loss
   
(2,277
)    
(1,972
)    
(4,249
)    
(88
)    
(12
)   $
(4,349
)
Income tax expense
   
 
   
(46
)
   
(46
)
   
     
     
(46
)
Year Ended December 31, 2018
  $
(15,472
)
  $
(1,316
)   $
(16,788
)
  $
(1,445
)
  $
(11
)   $
(4,395
)