FIXED ASSETS (Tables)

12 Months Ended

Dec. 31, 2015

FIXED ASSETS:

Schedule of property, plant and equipment

As of December 31, 2014 and 2015, property, plant and equipment consisted of the following (in thousands):

	Useful Life
	(in Years)	2014		2015
Telecommunications equipment and towers	5 -15	$	514,814	$	553,237
Solar assets	20-23		111,446		111,446
Office and computer equipment	3 -10		46,757		54,665
Buildings	15-39		18,079		18,540
Transportation vehicles	3 -10		7,589		8,882
Leasehold improvements	Shorterof useful life or lease term		11,494		11,592
Land	—		1,146		1,198
Furniture and fixtures	5 -10		8,110		6,584
Total property, plant and equipment			719,435		766,144
Construction in progress			43,982		41,103
Total property, plant and equipment			763,417		807,247
Less: Accumulated depreciation			(393,835)		(433,744)
Net fixed assets		$	369,582		373,503