The aggregate principal amount on real estate properties serving as collateral for debt as of the balance sheet date.

No definition available.

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- Definition

The option to extend the maturity date subject to certain conditions and the payment of a fee under the credit facility.

+ References

No definition available.

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- Definition

Represents the calculation of the average interest rate weighted by the amount of long-term debt outstanding by type or by instrument at that time.

+ References

No definition available.

+ Details

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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.

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399

+ Details

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- Definition

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

+ References

+ Details

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- 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.

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- 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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
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-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

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- 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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- 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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- Details

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Indebtedness - Debt Obligations (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Oct. 30, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Borrowings outstanding	$ 565,000		$ 565,000			$ 160,000
Maximum borrowing capacity on revolving credit facility	2,500,000		2,500,000
Aggregate principal amount on secured properties	26,358		26,358
Unsecured term loan, due in 2020
Debt Instrument [Line Items]
Face amount	$ 300,000		$ 300,000
Interest rate (as a percent)	2.60%		2.60%
The weighted average annual interest rate (as a percent)	2.60%	1.90%	2.40%	1.90%
Unsecured term loan, due in 2022
Debt Instrument [Line Items]
Face amount	$ 250,000		$ 250,000
Interest rate (as a percent)	3.00%		3.00%
The weighted average annual interest rate (as a percent)	3.00%	2.30%	2.80%	2.30%
Unsecured revolving credit facility
Debt Instrument [Line Items]
Borrowings outstanding	$ 565,000		$ 565,000
Maximum borrowing capacity on revolving credit facility	$ 750,000		$ 750,000
Option to extend the maturity date subject to certain conditions and the payment of a fee			1 year
Facility fee (as a percent)			0.25%
Interest rate (as a percent)	2.40%		2.40%
The weighted average annual interest rate (as a percent)	2.40%	1.70%	2.20%	1.70%
Unsecured revolving credit facility \| Subsequent Event
Debt Instrument [Line Items]
Borrowings outstanding					$ 545,000
Term loans
Debt Instrument [Line Items]
Face amount	$ 550,000		$ 550,000
Senior unsecured notes
Debt Instrument [Line Items]
Face amount	$ 960,000		$ 960,000
LIBOR \| Unsecured term loan, due in 2020
Debt Instrument [Line Items]
Interest rate premium (as a percent)			1.40%
LIBOR \| Unsecured term loan, due in 2022
Debt Instrument [Line Items]
Interest rate premium (as a percent)			1.80%
LIBOR \| Unsecured revolving credit facility
Debt Instrument [Line Items]
Interest rate premium (as a percent)			1.25%