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Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2023

Accounting Policies [Abstract]

Schedule of Other Property and Estimated Useful Lives of Property

Estimated useful lives of property are as follows:

Classification			Range of Life (in years)
Building and improvements			10 to 40
Leasehold improvements			5 to 10 (lesser of useful life or lease term)
Water, power and sewer systems			5 to 50
Machinery and equipment			2 to 35
Other property improvements			3 to 35

Real estate property, net as of December 31, 2023 and 2022, includes the following (in millions):

						2023						2022
Land						$	781.1					$	780.0
Buildings						736.6						719.6
Other property improvements						91.3						99.3
Subtotal						1,609.0						1,598.9
Accumulated depreciation						(227.3)						(202.3)
Real estate property, net						$	1,381.7					$	1,396.6

Schedule of Interest and Other Income (Expense)

Interest and other income (expense), net for the years ended December 31, 2023, 2022, and 2021, included the following (in millions):

						2023						2022						2021
Pension and post-retirement benefit (expense)						$	(0.5)					$	(0.6)					$	(3.0)
Interest income						0.4						0.3						1.0
Reclassification of interest rate derivative gain (loss) from Accumulated Other Comprehensive Income (Loss)						(2.7)						0.5						—
Other income (expense), net						0.1						0.2						0.3
Interest and other income (expense), net						$	(2.7)					$	0.4					$	(1.7)

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Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-SubTopic 10
-Topic 360
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482099/360-10-50-1

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Tabular disclosure of the components of non-operating income or non-operating expense that may include amounts earned from dividends, interest on securities, gains (losses) on securities sold, equity earnings of unconsolidated affiliates, net gain (loss) on sales of business, interest expense and other miscellaneous income or expense items.

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