Acquisitions - Schedule of Purchase Price Allocation (Details) - USD ($) $ in Thousands	9 Months Ended
Sep. 30, 2021	Dec. 31, 2020
Fair Value of Identifiable Assets Acquired and Liabilities Assumed:
Operating Lease Liabilities	$ (2,164,449)	$ (2,044,598)
Data Center Below-Market Leases	(20)
Goodwill Initially Recorded	$ 4,472,641	$ 4,557,609
Customer Relationships
Fair Value of Identifiable Assets Acquired and Liabilities Assumed:
Acquired finite-lived intangible assets, weighted average useful life	9 years
Leases, Acquired-in-Place
Fair Value of Identifiable Assets Acquired and Liabilities Assumed:
Acquired finite-lived intangible assets, weighted average useful life	5 years
Tenant Relationships
Fair Value of Identifiable Assets Acquired and Liabilities Assumed:
Acquired finite-lived intangible assets, weighted average useful life	5 years
Above Market Leases
Fair Value of Identifiable Assets Acquired and Liabilities Assumed:
Acquired finite-lived intangible assets, weighted average useful life	5 years
Below Market Leases
Fair Value of Identifiable Assets Acquired and Liabilities Assumed:
Acquired finite-lived intangible assets, weighted average useful life	4 years
2021 Acquisitions
Business Acquisition [Line Items]
Cash Paid (gross of cash acquired)	$ 224,192
Fair Value of Noncontrolling Interests	3,878
Purchase Price Holdbacks and Other	2,534
Total Consideration	230,604
Fair Value of Identifiable Assets Acquired and Liabilities Assumed:
Cash	20,440
Accounts Receivable, Prepaid Expenses and Other Assets	25,392
Property, Plant and Equipment	147,132
Operating Lease Right-of-Use Assets	45,209
Debt Assumed	(9,026)
Accounts Payable, Accrued Expenses and Other Liabilities	(23,082)
Operating Lease Liabilities	(45,209)
Deferred Income Taxes	(7,436)
Total Fair Value of Identifiable Net Assets Acquired	203,433
Goodwill Initially Recorded	27,171
2021 Acquisitions \| Customer Relationships
Fair Value of Identifiable Assets Acquired and Liabilities Assumed:
Intangible Assets	39,315
2021 Acquisitions \| Leases, Acquired-in-Place
Fair Value of Identifiable Assets Acquired and Liabilities Assumed:
Intangible Assets	4,994
2021 Acquisitions \| Tenant Relationships
Fair Value of Identifiable Assets Acquired and Liabilities Assumed:
Intangible Assets	4,682
2021 Acquisitions \| Above Market Leases
Fair Value of Identifiable Assets Acquired and Liabilities Assumed:
Intangible Assets	$ 1,042

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Amount due from customers or clients for goods or services, including trade receivables, that have been delivered or sold in the normal course of business, and amounts due from others, including related parties expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer, acquired at the acquisition date.

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Amount of liabilities assumed at the acquisition date.

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