Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2019

Summary of Significant Accounting Policies

Schedule of property and equipment

Acquired ground leases	Terms of the related lease
Buildings and improvements	5-39 years
Machinery and equipment	7-15 years
Furniture and fixtures	3-5 years
Leasehold improvements	Shorter of the estimated useful lives or the terms of the related leases
Tenant improvements	Shorter of the estimated useful lives or the terms of the related leases

Schedule of Goodwill

The following is a summary of goodwill activity for the years ended December 31, 2019 and 2018 (in thousands):

	Balance as of								Impact of Change		Balance as of
	December 31,		Merger /				Goodwill		in Foreign		December 31,
Merger / Portfolio Acquisition	2018		Acquisition		Deconsolidation		Adjustments (1)		Exchange Rates		2019
Telx Acquisition	$	330,845	$	—	$	—	$	—	$	—	$	330,845
European Portfolio Acquisition		442,349		—		—		(9,436)		7,166		440,079
DFT Merger		2,592,146		—		—		—		—		2,592,146
Ascenty Acquisition		982,667		—		(967,189)		—		(15,478)		—
Total	$	4,348,007	$	—	$	(967,189)	$	(9,436)	$	(8,312)	$	3,363,070
	Balance as of								Impact of Change		Balance as of
	December 31,		Merger /				Goodwill		in Foreign		December 31,
	2017		Acquisition		Deconsolidation		Adjustments		Exchange Rates		2018
Telx Acquisition	$	330,845	$	—	$	—	$	—	$	—	$	330,845
European Portfolio Acquisition		466,604		—		—		—		(24,255)		442,349
DFT Merger		2,592,146		—		—		—		—		2,592,146
Ascenty Acquisition		—		982,667		—		—		—		982,667
Total	$	3,389,595	$	982,667	$	—	$	—	$	(24,255)	$	4,348,007

Schedule of reclassified adjustments in balance sheet

We have reclassified certain items in the December 31, 2018 consolidated balance sheet to conform to the current presentation as follows (in thousands):

	As Previously						As
	Reported			Adjustments			Revised
Land		$	1,509,764		$	(650,651)		$	859,113
Building and improvements			16,745,210			(1,134,218)			15,610,992
Construction in progress and space held for development			—			1,621,928			1,621,928
Land held for future development			—			162,941			162,941