Concentration Of Credit Risk

9 Months Ended

Sep. 30, 2014

Concentration Of Credit Risk [Abstract]

9.CONCENTRATION OF CREDIT RISK

The Company’s credit risks consist primarily of accounts receivable with national, regional, and local wireless service providers and federal and state government agencies. The Company performs periodic credit evaluations of its customers’ financial condition and provides allowances for doubtful accounts, as required, based upon factors surrounding the credit risk of specific customers, historical trends, and other information. The Company generally does not require collateral on its lease agreements or site development contracts.

The following is a list of significant customers (representing at least 10% of segment revenues for the periods reported) and the percentage of total segment revenues for the specified time periods derived from such customers.



	For the three months		For the nine months
	ended September 30,		ended September 30,
	2014	2013	2014	2013
Percentage of Domestic Site Leasing Revenue
AT&T Wireless (1)	31.1%	27.2%	29.7%	25.8%
Sprint (2)	25.1%	30.8%	26.2%	30.4%
T-Mobile (3)	19.1%	18.1%	19.4%	17.9%
Verizon Wireless	14.2%	13.7%	14.0%	13.1%

	For the three months		For the nine months
	ended September 30,		ended September 30,
	2014	2013	2014	2013
Percentage of International Site Leasing Revenue
Oi	46.2%	1.3%	43.1%	1.2%
Telefonica	27.2%	49.3%	30.2%	52.0%
Digicel	4.5%	11.8%	5.0%	12.0%

	For the three months		For the nine months
	ended September 30,		ended September 30,
	2014	2013	2014	2013
Percentage of Site Development Revenue
Sprint (2)	46.1%	1.8%	32.2%	0.9%
Ericsson, Inc.	16.1%	32.2%	17.2%	38.1%
Verizon Wireless	10.0%	4.9%	9.8%	4.3%
T-Mobile (3)	7.4%	10.5%	8.9%	7.9%
Alcatel-Lucent	0.7%	8.1%	2.5%	10.1%

(1)Prior year amounts have been adjusted to reflect the merger of AT&T Wireless and Cricket.

(2)Prior year amounts have been adjusted to reflect the merger of Sprint and Clearwire.

(3)Prior year amounts have been adjusted to reflect the merger of T-Mobile and Metro PCS.

Five significant customers comprised 54.2% and 51.5% of total gross accounts receivable at September 30, 2014 and December 31, 2013, respectively.

- Definition

The entire disclosure for any concentrations existing at the date of the financial statements that make an entity vulnerable to a reasonably possible, near-term, severe impact. This disclosure informs financial statement users about the general nature of the risk associated with the concentration, and may indicate the percentage of concentration risk as of the balance sheet date.

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