Value of input used to measure long lived assets.

No definition available.

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- Definition

The maximum original maturity period for which highly liquid investments will be considered cash and cash equivalents.

+ References

No definition available.

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- Definition

Organization consolidation and presentation of financial statements.

+ References

No definition available.

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- Definition

Represents the percentage of annual assumed average rent increases used as an unobservable input to measure the fair value.

+ References

No definition available.

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- Definition

Property plant and equipment assumed holding periods.

+ References

No definition available.

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- Definition

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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- Definition

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

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- Definition

Fair value portion of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

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- Definition

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

No definition available.

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- Definition

Amount of cash and cash equivalents restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Impairments	$ 4,012,000	$ 6,170,000	$ 9,321,000
Maturity period of liquid investments	3 months
Restricted cash	$ 1,883,000	1,850,000
Level 3 [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Assumed annual average rent increases for unobservable inputs	2.00%
Measurement Input Cap Rate [Member] \| Level 3 [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Real estate fair value, measurement input	8.00%
Measurement Input Discount Rate [Member] \| Level 3 [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Real estate fair value, measurement input	7.00%
Properties [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Impairments	$ 1,202,000	1,268,000	$ 1,042,000
Estimated Sale Price Method [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Impairments	4,012,000
Estimated fair value	296,000
Discounted Cash Flow Method [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Impairments	4,012,000
Estimated fair value	0
Accumulation of Asset Retirement Cost Method [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Impairments	4,012,000
Estimated fair value	3,716,000
Notes and Mortgages Receivable [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Impairments	0	0
Direct Financing Leases Financing Receivable [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Impairments	$ 0	0
Maximum [Member] \| Measurement Input Expected Term [Member] \| Level 3 [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Assumed holding periods for unobservable inputs	15 years
Buildings and Improvements [Member] \| Minimum [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Property plant and equipment useful life	16 years
Buildings and Improvements [Member] \| Maximum [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Property plant and equipment useful life	25 years
USTs [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Property plant and equipment useful life	10 years
Prepaid Expenses and Other Assets [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Debt issuance costs	$ 2,014,000	$ 2,773,000