Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2019

Fair Value Measurements [Abstract]

Summary of Asset Impairment and Decommission Costs

	For the three months				For the six months
	ended June 30,				ended June 30,
	2019		2018		2019		2018
Asset impairment (1)	$	4,282	$	4,526	$	7,585	$	10,382
Write-off of carrying value of decommissioned towers		5,007		2,370		7,164		4,371
Other (including third party decommission costs)		331		508		642		1,156
Total asset impairment and decommission costs	$	9,620	$	7,404	$	15,391	$	15,909

(1)Represents impairment charges resulting from the Company’s regular analysis of whether the future cash flows from certain towers are adequate to recover the carrying value of the investment in those towers.