Real Estate Facilities (Schedule of Real Estate Activities) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Operating facilities, at cost:
Beginning balance (Operating facilities, at cost)	$ 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 (Operating facilities, at cost)	24,219,126	22,807,833	17,372,627
Accumulated depreciation:
Beginning balance (Accumulated depreciation)	(7,773,308)	(7,152,135)	(6,623,475)
Depreciation expense	(781,931)	(625,968)	(528,660)
Dispositions	1,084	4,795	0
Ending balance (Accumulated depreciation)	(8,554,155)	(7,773,308)	(7,152,135)
Construction in process:
Beginning balance (Construction in process)	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)	0	(3,226)
Developed or expanded facilities opened for operation	(227,239)	(218,001)	(138,731)
Ending balance (Construction in process)	372,992	272,471	188,079
Total real estate facilities	$ 16,037,963	$ 15,306,996	$ 10,408,571