Interest rate 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.

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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.

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Weighted average interest rate of debt outstanding.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-SubTopic 20
-Section 50
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Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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Debt Obligations - Component (Details) - USD ($)		6 Months Ended
Debt Obligations - Component (Details) - USD ($)	Jul. 29, 2021	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Debt Obligations
Applicable Interest Rate (as a percent)		4.04%
Amount borrowed		$ 17,000,000	$ 24,000,000
Outstanding Balance		618,459,000		$ 649,382,000
Available for borrowing		534,100,000		510,100,000
Repayment paid		41,000,000	28,000,000
Unsecured revolving line of credit		$ 65,900,000		89,900,000
Minimum
Debt Obligations
Interest rate (as a percent)		5.00%
Maximum
Debt Obligations
Interest rate (as a percent)		8.00%
Bank Borrowings
Debt Obligations
Applicable Interest Rate (as a percent)		1.24%
Amount borrowed		$ 17,000,000	24,000,000
Outstanding Balance		65,900,000		89,900,000
Available for borrowing		534,100,000		510,100,000
Repayment paid		$ 41,000,000	$ 28,000,000
Bank Borrowings \| Subsequent Event
Debt Obligations
Amount borrowed	$ 19,000,000
Outstanding Balance	84,900,000
Available for borrowing	515,100,000
Senior Unsecured Notes
Debt Obligations
Applicable Interest Rate (as a percent)		4.37%
Outstanding Balance		$ 552,559,000		$ 559,482,000
Senior Unsecured Notes \| Subsequent Event
Debt Obligations
Repayment paid	25,160,000
Unsecured revolving line of credit	$ 527,399,000
Senior Unsecured Notes \| Minimum
Debt Obligations
Interest rate (as a percent)		3.85%
Senior Unsecured Notes \| Maximum
Debt Obligations
Interest rate (as a percent)		5.03%