Organization and Description of Business (Tables)

12 Months Ended

Dec. 31, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Real Estate Properties

A summary of our data center portfolio as of December 31, 2018 and 2017 is as follows:

	Data Centers
	As of December 31, 2018						As of December 31, 2017
Region	Operating			Held for Sale	Unconsolidated Joint Ventures	Total	Operating			Held for Sale	Unconsolidated Joint Ventures	Total
United States	131			—	14	145	131	(2	)	7	14	152
Europe	38			—	—	38	38			—	—	38
Latin America	16	(1	)	—		16	—			—	—	—
Asia	3			—	4	7	3			—	4	7
Australia	5			—	—	5	5			—	—	5
Canada	3			—	—	3	3	(2	)	—	—	3
Total	196			—	18	214	180			7	18	205

(1) Includes 16 data centers acquired as part of the Ascenty Acquisition, eight of which are under construction.

(2) Includes 15 data centers acquired as part of the merger with DuPont Fabros Technology, Inc., of which 14 are located in the United States and one is located in Canada.

A summary of our investments in properties as of December 31, 2018 and 2017 is as follows:

	As of December 31, 2018
	(in thousands)
Property Type	Land		Acquired Ground Lease		Buildings and Improvements (1)		Tenant Improvements		Accumulated Depreciation and Amortization			Net Investment in Properties
Internet Gateway Data Centers	$	101,964	$	—	$	2,137,458	$	114,013	$	(885,315	)	$	1,468,120
Data Centers (2)	1,391,585		10,575		14,502,437		460,247		(3,016,646		)	13,348,198
Technology Manufacturing	11,959		—		1,582		76		(100		)	13,517
Technology Office	2,091		—		23,104		—		(18,441		)	6,754
Other	2,165		—		80,629		—		(14,765		)	68,029
	$	1,509,764	$	10,575	$	16,745,210	$	574,336	$	(3,935,267	)	$	14,904,618

	As of December 31, 2017
	(in thousands)
Property Type	Land		Acquired Ground Lease		Buildings and Improvements (1)		Tenant Improvements		Accumulated Depreciation and Amortization			Net Investment in Properties
Internet Gateway Data Centers	$	109,844	$	—	$	1,940,495	$	99,174	$	(778,659	)	$	1,370,854
Data Centers (2)	1,010,306		11,150		13,147,042		453,712		(2,430,984		)	12,191,226
Technology Manufacturing	11,959		—		1,564		76		(31		)	13,568
Technology Office	2,067		—		23,029		—		(16,779		)	8,317
Other	2,165		—		103,275		78		(11,774		)	93,744
	$	1,136,341	$	11,150	$	15,215,405	$	553,040	$	(3,238,227	)	$	13,677,709

(1) Balances include, as of December 31, 2018 and 2017, $1.6 billion and $1.4 billion of direct and accrued costs associated with development in progress, respectively.

(2) Balances include vacant land to support ground-up development.