This item represents the contractual minimum for a variable rate basis such as LIBOR for a debt instrument.

No definition available.

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- Definition

This item represents the debt leverage limit that would trigger an increase in the interest rate to be paid on outstanding debt balances.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

This item represents the net book value of real estate pledged toward mortgage.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

This concept represents the outstanding balance of term loans.

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Amount of contractual principal due at origination of mortgage loan within investment in mortgage loan on real estate by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 12
-Paragraph Column F
-Subsection 29

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-Section S99
-Paragraph 1
-Subparagraph (SX 210.12-29(Column F))
-URI http://asc.fasb.org/extlink&oid=120402547&loc=d3e617274-123014

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

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

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

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Period Type:	instant

- Definition

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.

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-SubTopic 30
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Balance Type:	debit
Period Type:	instant

- Definition

The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- 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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of real estate properties owned as of the balance sheet date.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3291-108585

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section S99
-Paragraph 2
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-URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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Debt (Narrative) (Details) $ in Millions		3 Months Ended			6 Months Ended
Debt (Narrative) (Details) $ in Millions	Mar. 31, 2022 USD ($)	Jun. 30, 2022 USD ($) property	Mar. 31, 2022 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2022 USD ($) property	Jun. 30, 2021 USD ($)	Jan. 31, 2021 USD ($)
Debt Instrument [Line Items]
Basis points		1.79%			1.79%
Basis points for revolving facility fee			0.25%
Debt leverage limit					50.00%
Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Basis spread on variable rate	1.00%
Fed Funds Effective Rate Overnight Index Swap Rate
Debt Instrument [Line Items]
Basis spread on variable rate	0.50%
Minimum
Debt Instrument [Line Items]
Facility fee percentage	0.125%
Maximum
Debt Instrument [Line Items]
Facility fee percentage	0.30%
Revolving Credit Facility \| Minimum
Debt Instrument [Line Items]
Basis spread on variable rate	0.725%
Revolving Credit Facility \| Minimum \| Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate	0.00%
Revolving Credit Facility \| Maximum
Debt Instrument [Line Items]
Basis spread on variable rate	1.40%
Revolving Credit Facility \| Maximum \| Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate	0.40%
Unsecured Debt \| Revolving Credit Facility
Debt Instrument [Line Items]
Unsecured revolving credit facility	$ 700.0		$ 700.0
Deferred costs		$ 4.5			$ 4.5
Credit Facility Replaced \| Unsecured Debt \| Revolving Credit Facility
Debt Instrument [Line Items]
Unsecured revolving credit facility	550.0		550.0
$300M Term Loan
Debt Instrument [Line Items]
2018 Term Loan balance	$ 300.0		$ 300.0
$60M Term Loan
Debt Instrument [Line Items]
Repayments of term loan		60.0
$75M Term Loan
Debt Instrument [Line Items]
Basis spread on variable rate			1.85%
Repayments of term loan			$ 75.0
Basis points	0.50%		0.50%
Write off of unamortized loan costs					0.2
Debt Instrument, Name, Revolving Credit Facility
Debt Instrument [Line Items]
Basis spread on variable rate			1.05%
Unused balance of the unsecured revolving credit facility		$ 700.0			$ 700.0
Senior Notes Due 2031 \| Senior Notes
Debt Instrument [Line Items]
Aggregate principle amount issued							$ 400.0
Fixed Rate							3.00%
$100M Term Loan
Debt Instrument [Line Items]
Repayments of term loan						$ 100.0
Write off of unamortized loan costs				$ 0.5		$ 0.5
Debt Instrument, Name, Fannie Mae Term Loans
Debt Instrument [Line Items]
Fixed Rate		3.79%			3.79%
Fannie Mae term-debt financing amount		$ 60.1			$ 60.1
Term of debt					10 years
Number of real estate properties \| property		11			11
Net book value		$ 106.1			$ 106.1
FNMA Berkadia Note
Debt Instrument [Line Items]
Fixed Rate		4.60%			4.60%
Fannie Mae term-debt financing amount		$ 16.7			$ 16.7