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Nature of Business and Financial Statement Presentation - Non-cash Investing and Financing Activities (Detail) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Accounts payable related to construction in progress	$ 2.7	$ 3.2
Accounts receivable related to construction in progress	12.3	2.1
Accounts payable related to future acquisitions	0.8	1.0
Accounts payable related to finance costs	0.0	0.3
Accounts payable related to offering expense	0.5	0.0
Assumption of buildings due to ground lease terminations	0.5	0.7
Dividends declared, but not paid	$ 19.6	$ 17.4

X

- Definition

Accounts payable related to finance costs.

+ References

No definition available.

+ Details

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- Definition

Accounts payable related to future acquisitions.

+ References

No definition available.

+ Details

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- Definition

Accounts payable related to offering expense.

+ References

No definition available.

+ Details

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- Definition

Construction in Progress Receivables not yet Received

+ References

No definition available.

+ Details

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- Definition

Dividends declared but not paid.

+ References

No definition available.

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- Definition

Future cash outflow to pay for construction in progress expenditures that have occurred.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482913/230-10-50-3

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X

- Definition

The amount of fixed assets that an Entity acquires in a noncash (or part noncash) acquisition. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482913/230-10-50-3

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