Real Estate Facilities (Tables)

12 Months Ended

Dec. 31, 2022

Activity in real estate facilities during 2022, 2021, and 2020 is as follows:



	For the Years Ended December 31,
	2022		2021		2020
	(Amounts in thousands)
Operating facilities, at cost:
Beginning balance	$	22,807,833	$	17,372,627	$	16,289,146
Capital expenditures to maintain real estate facilities	452,316		284,200		163,834
Acquisitions	733,442		4,940,413		781,219
Dispositions	(1,704)		(7,408)		(303)
Developed or expanded facilities opened for operation	227,239		218,001		138,731
Ending balance	24,219,126		22,807,833		17,372,627
Accumulated depreciation:
Beginning balance	(7,773,308)		(7,152,135)		(6,623,475)
Depreciation expense	(781,931)		(625,968)		(528,660)
Dispositions	1,084		4,795		—
Ending balance	(8,554,155)		(7,773,308)		(7,152,135)
Construction in process:
Beginning balance	272,471		188,079		141,934
Costs incurred to develop and expand real estate facilities	336,948		302,393		188,102
Write-off of cancelled projects and transfer to other assets	(9,188)		—		(3,226)
Developed or expanded facilities opened for operation	(227,239)		(218,001)		(138,731)
Ending balance	372,992		272,471		188,079
Total real estate facilities at December 31,	$	16,037,963	$	15,306,996	$	10,408,571