Annual report pursuant to Section 13 and 15(d)

NATURE OF OPERATIONS AND ACCOUNTING POLICIES (Tables)

v3.7.0.1
NATURE OF OPERATIONS AND ACCOUNTING POLICIES (Tables)
 12 Months Ended
Dec. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Schedule of Deferred Revenues
Deferred revenues and related activity during the years ended December 31, 2015 and 2014 were as follows (in thousands):
 
 
2015
 
2014
Balance at beginning of period
 
$
31,047

 
$
24,243

Revenues deferred during period
 
32,531

 
32,142

Revenues recognized during period
 
(21,446
)
 
(25,338
)
Elimination due to consolidation
 
(42,132
)
 
—

Balance at end of period
 
$
—

 
$
31,047

Schedule of Allowance for Doubtful Accounts
Allowance for doubtful accounts for the years ended December 31, 2016, 2015 and 2014 were as follows (in thousands):
 
 
2016
 
2015
 
2014
Balance at beginning of period
 
$
2,103

 
$
1,955

 
$
3,101

Additional allowances charged to expense
 
441

 
1,058

 
254

Additional allowance due to consolidation
 
—

 
577

 
—

Recovery of previously reserved accounts
 
(1,086
)
 
(124
)
 
(1,324
)
Write-offs
 
(474
)
 
(1,354
)
 
(76
)
Foreign currency adjustments
 
235

 
(9
)
 
—

Balance at end of period
 
$
1,219

 
$
2,103

 
$
1,955

Schedule of Inventory Allowance
The following table is a roll forward of the allowance related to obsolete and excess inventory for the years ended December 31, 2016, 2015 and 2014 (in thousands):
 
 
2016
 
2015
 
2014
Balance at beginning of period
 
$
4,821

 
$
5,091

 
$
5,169

Increases (decreases) to allowance
 
(809
)
 
(270
)
 
(78
)
Balance at end of period
 
$
4,012

 
$
4,821

 
$
5,091

Schedule of Estimated Useful Life for New Property and Equipment
As of December 31, 2016, the estimated useful life (in years) of the Company’s categories of new property and equipment was as follows:
Helicopters (estimated salvage value at 40% of cost)
 
15

Machinery, equipment and spares
 
5-7

Buildings and leasehold improvements
 
10-30

Furniture, fixtures, vehicles and other
 
3-5