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FIXED ASSETS (Tables)
 12 Months Ended
Dec. 31, 2018
FIXED ASSETS:  
Schedule of property, plant and equipment

As of December 31, 2018 and 2017, property, plant and equipment consisted of the following (in thousands):

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Useful Life

 

 

 

 

 

 

 

 

    

(in Years)

    

2018

    

2017

 

Telecommunications equipment and towers

 

5 -15

 

 

 

$

914,276

 

$

774,548

 

Solar assets

 

20-23

 

 

 

 

57

 

 

113,218

 

Office and computer equipment

 

3 -10

 

 

 

 

77,085

 

 

76,706

 

Buildings

 

15-39

 

 

 

 

48,900

 

 

48,058

 

Transportation vehicles

 

3 -10

 

 

 

 

15,039

 

 

12,221

 

Leasehold improvements

 

Shorter of useful
life or lease term

 

 

 

 

2,033

 

 

2,864

 

Land

 

—

 

 

 

 

14,728

 

 

12,516

 

Furniture and fixtures

 

5 -10

 

 

 

 

9,200

 

 

6,674

 

Total property, plant and equipment

 

 

 

 

 

 

1,081,318

 

 

1,046,805

 

Construction in progress

 

 

 

 

 

 

107,598

 

 

123,001

 

Total property, plant and equipment

 

 

 

 

 

 

1,188,916

 

 

1,169,806

 

Less: Accumulated depreciation

 

 

 

 

 

 

(562,064)

 

 

(526,660)

 

Net fixed assets

 

 

 

 

 

$

626,852

 

$

643,146