Schedule III - Schedule of Real Estate and Accumulated Depreciation (Schedule of Real Estate and Accumulated Depreciation) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($) site	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Description | site	39,618
Encumbrances	$ 9,388,000
Gross Amount Carried at Close of Current Period	8,231,510	$ 7,993,750	$ 7,068,208	$ 5,963,048
Accumulated Depreciation at Close of Current Period	$ (4,232,369)	$ (3,925,893)	$ (3,644,238)	$ (3,383,370)
Date of Construction	Various
Date Acquired	Various
Secured debt	$ 9,400,000
Maximum [Member]
Life on Which Depreciation in Latest Income Statement is Computed	70 years
Product Concentration Risk [Member] | Minimum [Member] | Real Estate, Gross [Member] | Sites [Member]
Concentration risk percentage	5.00%