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Description of Business and Summary of Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Summary of Cumulative Catch-Up Adjustments
Cumulative catch-up adjustments for the years ended December 31, 2016, 2015 and 2014 are presented in the following table:
 
 
Year Ended December 31,
(In thousands)
 
2016
 
2015
 
2014
Favorable adjustments
 
$
15,296

 
$
9,721

 
$
3,981

Unfavorable adjustments ¹
 
(7,837
)
 
(11,641
)
 
(6,629
)
Net favorable (unfavorable) adjustments
 
$
7,459

 
$
(1,920
)
 
$
(2,648
)
¹ Of the $6.6 million unfavorable change in estimates in 2014, $2.5 million is due to the TARS program, which was retained by Exelis following the Spin-off.
Schedule of Depreciation and Amortization Useful Lives
Depreciation and amortization is generally computed using either an accelerated or straight-line method and is based on estimated useful lives or lease term as follows:
 
 
Years
Buildings and improvements
 
5 – 40
Machinery and equipment
 
3 – 10
Furniture, fixtures, and office equipment
 
3 – 7
Property, plant and equipment, net consisted of the following at December 31:
(In thousands)

2016
 
2015
Buildings and improvements

$
5,230

 
$
4,866

Machinery and equipment

4,422

 
4,877

Furniture, fixtures and office equipment

3,721

 
3,772

Property, plant and equipment, gross

13,373

 
13,515

Less: accumulated depreciation and amortization

(10,312
)
 
(8,753
)
Property, plant and equipment, net

$
3,061

 
$
4,762