Long-Term Debt - Mortgage Facilities (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021
Debt Instrument
Long-term debt	$ 1,622.1	$ 1,474.0
Mortgage facilities
Debt Instrument
Long-term debt	494.3	$ 353.8
Revolving Mortgage Facility
Debt Instrument
Maximum credit available	225.0
Current borrowing capacity	$ 201.1
Line of credit basis spread on variable rate (as a percent)	1.50%
Long-term debt	$ 109.1

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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- Definition

Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

+ References

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