Schedule III - Schedule of Real Estate and Accumulated Depreciation

12 Months Ended

Dec. 31, 2017

Schedule III - Schedule of Real Estate and Accumulated Depreciation [Abstract]

Schedule III - Schedule of Real Estate and Accumulated Depreciation

Schedule III—Schedule of Real Estate and Accumulated Depreciation

Life on Which

Cost

Accumulated

Depreciation

Capitalized

Gross Amount

Depreciation

in Latest

Initial

Subsequent

Carried at Close

at Close

Income

Cost to

to

of Current

of Current

Date of

Date

Statement is

Description

Encumbrances

Company

Acquisition

Period

Period

Construction

Acquired

Computed

(in thousands)

27,909 sites (1)

$

6,805,000

(2)

(3)

(3)

$

5,340,858

(4)

$

(2,627,841)

Various

Various

Up to 20 years

(1) No single site exceeds 5% of the aggregate gross amounts at which the assets were carried at the close of the period set forth in the table above.

(2) As of December 31, 2017, certain assets secure debt of $6.8 billion.

(3) The Company has omitted this information, as it would be impracticable to compile such information on a site-by-site basis.

(4) Does not include those sites under construction.

	2017		2016		2015
	(in thousands)
Gross amount at beginning	$	5,079,660	$	4,839,874	$	4,577,296
Additions during period:
Acquisitions (1)		112,979		72,456		203,441
Construction and related costs on new builds		70,361		58,143		87,088
Augmentation and tower upgrades		43,288		37,861		52,146
Land buyouts and other assets		41,657		44,574		47,148
Tower maintenance		29,391		28,257		27,123
Other (2)		—		45,829		—
Total additions		297,676		287,120		416,946
Deductions during period:
Cost of real estate sold or disposed		(1,027)		(12,842)		(26,506)
Impairment		(34,102)		(34,491)		(34,373)
Other (2)		(1,350)		—		(93,489)
Total deductions:		(36,479)		(47,334)		(154,368)
Balance at end	$	5,340,858	$	5,079,660	$	4,839,874

(1) Inclusive of changes between the final purchase price allocation and the preliminary purchase price allocations.

	2017		2016		2015
	(in thousands)
Gross amount of accumulated depreciation at beginning	$	(2,396,587)	$	(2,160,530)	$	(1,912,906)
Additions during period:
Depreciation		(248,818)		(254,982)		(282,831)
Other (2)		—		(5,557)		—
Total additions		(248,818)		(260,539)		(282,831)
Deductions during period:
Amount of accumulated depreciation for assets sold or disposed		17,051		24,483		25,909
Other (2)		513		—		9,298
Total deductions		17,564		24,483		35,207
Balance at end	$	(2,627,841)	$	(2,396,587)	$	(2,160,530)

(2) Primarily represents cumulative translation adjustments related to changes in foreign currency exchange rates.