The amount of debt instrument that has been committed under a certain agreement.

No definition available.

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- Definition

Represents the additional amount to borrow through an accordion feature under debt instrument agreement.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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- 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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Period Type:	duration

- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
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Period Type:	instant

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 6
-Subparagraph (a)
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-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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- Definition

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

+ References

+ Details

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Period Type:	instant

- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Balance Type:	credit
Period Type:	duration

- Definition

Amount of addition (reduction) to the amount at which a liability could be incurred (settled) in a current transaction between willing parties.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

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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Period Type:	instant

- 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

+ Details

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Balance Type:	credit
Period Type:	instant

- 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

+ Details

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Period Type:	instant

- Definition

The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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-Paragraph 15
-Subparagraph (b)
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Balance Type:	credit
Period Type:	duration

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- Details

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Balance Type:
Period Type:

- Details

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- Details

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Note 8 - Notes, Mortgages and Construction Loan Payable (Details Textual) - USD ($) $ in Thousands	1 Months Ended			3 Months Ended		9 Months Ended
	Apr. 30, 2020	Feb. 29, 2020	Aug. 31, 2018	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Aug. 31, 2020	Jul. 31, 2020	Dec. 31, 2019
Long-term Line of Credit, Total				$ 0		$ 0
Gain (Loss) on Extinguishment of Debt, Total				$ (7,538)	$ 0	$ (7,538)	$ 0
The 1.90% Senior Unsecured Note [Member]
Debt Instrument, Face Amount								$ 400,000
Debt Instrument, Interest Rate, Stated Percentage								1.90%
The 3.20% Senior Unsecured Note [Member]
Debt Instrument, Interest Rate, Stated Percentage				3.20%		3.20%
Repayments of Long-term Debt, Total				$ 484,900
Gain (Loss) on Extinguishment of Debt, Total				$ (7,500)
Construction Loans [Member]
Debt Instrument, Commitment			$ 67,000
Mortgage Debt Encumbered Operating Property [Member]
Repayments of Long-term Debt, Total						$ 92,000
Liabilities, Fair Value Adjustment						$ 400
Term Loan [Member]
Debt Instrument, Face Amount	$ 590,000
Debt Instrument, Covenant, Additional Amount Through an Accordion Feature	$ 750,000
Green Bond [Member] \| Unsecured Debt [Member]
Debt Instrument, Interest Rate, Effective Percentage									2.70%
Debt Instrument, Face Amount									$ 500,000
London Interbank Offered Rate (LIBOR) [Member] \| Construction Loans [Member]
Debt Instrument, Basis Spread on Variable Rate			1.80%
London Interbank Offered Rate (LIBOR) [Member] \| Term Loan [Member]
Debt Instrument, Basis Spread on Variable Rate	1.40%
Base Rate [Member] \| Term Loan [Member]
Debt Instrument, Basis Spread on Variable Rate	0.40%
Revolving Credit Facility [Member]
Line of Credit Facility, Current Borrowing Capacity		$ 2,000,000								$ 2,250,000
Debt Instrument, Interest Rate, Effective Percentage				0.91%		0.91%
Line of Credit Facility, Maximum Borrowing Capacity				$ 2,750,000		$ 2,750,000
Revolving Credit Facility [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Basis Spread on Variable Rate		0.765%
Letter of Credit [Member]
Long-term Line of Credit, Total				$ 0		$ 0