Debt Instrument, Debt Default, Interest

No definition available.

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- Definition

Debt Instrument, Extension Option Fee, Percent

+ References

No definition available.

+ Details

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- Definition

Debt Instrument, Number of Extension Options

+ References

No definition available.

+ Details

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- Definition

Debt Instrument, Term, Extension Option

+ References

No definition available.

+ Details

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- Definition

Line Of Credit Facility, Accordion Feature, Increase Limit

+ References

No definition available.

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- Definition

Represents the number of properties secured by mortgage notes.

+ 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

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ 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))
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- Definition

The average effective interest rate during the reporting period.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
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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.

+ Details

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- 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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- Definition

The portion of losses on derivative instruments designated and qualifying as hedging instruments representing (a) the amount of the hedge ineffectiveness and (b) the amount, if any, excluded from the assessment of hedge effectiveness.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 25
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- Definition

Gross amount of debt extinguished.

+ References

No definition available.

+ Details

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- 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://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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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

+ 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

The effective interest rate during the reporting period.

+ References

+ 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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- Definition

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

+ References

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition

Amount of real estate investment property, net of accumulated depreciation, which may include the following: (1) land available-for-sale; (2) land available-for-development; (3) investments in building and building improvements; (4) tenant allowances; (5) developments in-process; (6) rental properties; and (7) other real estate investments.

+ References

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- Definition

Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
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-Subparagraph (SX 210.9-03(16))
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-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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Indebtedness - Narrative (Details)											1 Months Ended		10 Months Ended	11 Months Ended	12 Months Ended
Indebtedness - Narrative (Details)	Jul. 15, 2017 USD ($)	Dec. 15, 2016 USD ($)	Nov. 10, 2016 USD ($)	Feb. 16, 2016 USD ($)	Dec. 01, 2015 USD ($)	Aug. 03, 2015 USD ($)	Jun. 05, 2015 USD ($)	Jun. 03, 2015 USD ($)	May 01, 2015 USD ($)	Jan. 29, 2015 USD ($) option	Dec. 31, 2017 USD ($) property	Apr. 30, 2017 USD ($)	May 22, 2015 USD ($)	Dec. 31, 2015	Dec. 31, 2017 USD ($) property	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Debt Instrument [Line Items]
(Loss) gain on early extinguishment of debt															$ (493,000)	$ (2,680,000)	$ 6,661,000
Term loan amount outstanding											$ 848,578,000				848,578,000	1,141,667,000
Real estate properties, net											1,296,893,000				1,296,893,000	2,101,635,000
Mortgage notes payable, net											32,594,000				32,594,000	77,717,000
Outstanding indebtedness											856,940,000				856,940,000	1,151,634,000
Designated as hedging instrument \| Cash flow hedging
Debt Instrument [Line Items]
Expense included in interest and other income															0	241,000	0
Mortgage notes \| 33 Stiles Lane
Debt Instrument [Line Items]
(Loss) gain on early extinguishment of debt															(200,000)
Amount of debt, redeemed, defeased, or prepaid											2,000,000
Mortgage notes \| Parkshore Plaza
Debt Instrument [Line Items]
(Loss) gain on early extinguishment of debt															$ (100,000)
Amount of debt, redeemed, defeased, or prepaid												$ 41,300,000
Mortgage notes \| 1735 Market Street
Debt Instrument [Line Items]
(Loss) gain on early extinguishment of debt																(2,400,000)
Amount of debt, redeemed, defeased, or prepaid			$ 167,800,000
Mortgage notes \| 1735 Market Street \| Designated as hedging instrument \| Interest rate swap contracts \| Cash flow hedging
Debt Instrument [Line Items]
Expense included in interest and other income																200,000
Mortgage notes \| 111 Monument Circle
Debt Instrument [Line Items]
(Loss) gain on early extinguishment of debt					$ 600,000
Amount of debt, redeemed, defeased, or prepaid					$ 116,000,000
Mortgage notes \| 111 East Wacker Drive
Debt Instrument [Line Items]
(Loss) gain on early extinguishment of debt																	(3,900,000)
Amount of debt, redeemed, defeased, or prepaid						$ 141,400,000
Mortgage notes \| 2501 20th Place South
Debt Instrument [Line Items]
(Loss) gain on early extinguishment of debt																	(600,000)
Amount of debt, redeemed, defeased, or prepaid							$ 10,000,000
Mortgage notes \| 1320 Main Street
Debt Instrument [Line Items]
(Loss) gain on early extinguishment of debt																	(6,200,000)
Amount of debt, redeemed, defeased, or prepaid								$ 38,700,000
Mortgage notes \| 225 Water Street in Jacksonville, Florida
Debt Instrument [Line Items]
(Loss) gain on early extinguishment of debt																	17,300,000
Interest accrual rate													10.03%
Outstanding indebtedness													$ 40,100,000
Default interest													4.00%
Revolving credit facility \| Minimum
Debt Instrument [Line Items]
Commitment fee percentage														0.125%
Revolving credit facility \| Maximum
Debt Instrument [Line Items]
Commitment fee percentage														0.30%
Revolving credit facility \| LIBOR
Debt Instrument [Line Items]
Basis points on variable rate															1.05%
Revolving credit facility \| LIBOR \| Minimum
Debt Instrument [Line Items]
Basis points on variable rate														0.875%
Revolving credit facility \| LIBOR \| Maximum
Debt Instrument [Line Items]
Basis points on variable rate														1.55%
Revolving credit facility \| Base rate \| Minimum
Debt Instrument [Line Items]
Basis points on variable rate														0.00%
Revolving credit facility \| Base rate \| Maximum
Debt Instrument [Line Items]
Basis points on variable rate														0.55%
Unsecured revolving credit facility \| Revolving credit facility
Debt Instrument [Line Items]
Maximum borrowing capacity										$ 750,000,000.0
Number of extension options \| option										2
Extension option term										6 months
Extension option fee, percent										0.075%
Commitment fee percentage															0.20%
Interest rate payable percentage															2.61%
Revolving credit facility											0				$ 0
Amount available for borrowing											750,000,000.0				750,000,000.0
Unsecured revolving credit facility \| Revolving credit facility \| Line of credit
Debt Instrument [Line Items]
(Loss) gain on early extinguishment of debt																	$ (400,000)
Unsecured revolving credit facility \| Letter of credit
Debt Instrument [Line Items]
Maximum borrowing capacity										$ 100,000,000.0
Loan facility, 5-year term
Debt Instrument [Line Items]
Maximum borrowing capacity										$ 200,000,000.0
Term loan amount outstanding											$ 200,000,000				$ 200,000,000
Interest rate stated percentage											2.71%				2.71%
Outstanding indebtedness											$ 200,000,000				$ 200,000,000	200,000,000
Loan facility, 5-year term \| LIBOR
Debt Instrument [Line Items]
Basis points on variable rate															1.15%
Loan facility, 5-year term \| LIBOR \| Minimum
Debt Instrument [Line Items]
Basis points on variable rate														0.90%
Loan facility, 5-year term \| LIBOR \| Maximum
Debt Instrument [Line Items]
Basis points on variable rate														1.80%
Loan facility, 5-year term \| Revolving credit facility
Debt Instrument [Line Items]
Debt instrument, term										5 years
Interest accrual rate															2.71%
Loan facility, 7-year term
Debt Instrument [Line Items]
Maximum borrowing capacity										$ 200,000,000.0
Interest rate stated percentage											3.11%				3.11%
Outstanding indebtedness											$ 200,000,000				$ 200,000,000	200,000,000
Loan facility, 7-year term \| LIBOR
Debt Instrument [Line Items]
Basis points on variable rate															1.55%
Loan facility, 7-year term \| LIBOR \| Minimum
Debt Instrument [Line Items]
Basis points on variable rate														1.40%
Loan facility, 7-year term \| LIBOR \| Maximum
Debt Instrument [Line Items]
Basis points on variable rate														2.35%
Loan facility, 7-year term \| Revolving credit facility
Debt Instrument [Line Items]
Debt instrument, term										7 years
Interest accrual rate															3.11%
Term loan amount outstanding											$ 200,000,000.0				$ 200,000,000.0
Revolving credit facility and term loans
Debt Instrument [Line Items]
Additional increases in maximum amount of borrowings available										$ 1,150,000,000.00
6.65% Senior Unsecured Notes due 2018
Debt Instrument [Line Items]
(Loss) gain on early extinguishment of debt	$ (200,000)
Amount of debt, redeemed, defeased, or prepaid	$ 250,000,000
Interest rate stated percentage	6.65%										0.00%				0.00%
Outstanding indebtedness											$ 0				$ 0	$ 250,000,000
6.25% Senior Unsecured Notes due 2017
Debt Instrument [Line Items]
(Loss) gain on early extinguishment of debt		$ (100,000)
Amount of debt, redeemed, defeased, or prepaid		$ 250,000,000
Interest rate stated percentage		6.25%
6.25% Senior Unsecured Notes due 2016
Debt Instrument [Line Items]
(Loss) gain on early extinguishment of debt				$ (100,000)
Amount of debt, redeemed, defeased, or prepaid				$ 139,100,000
Interest rate stated percentage				6.25%
5.75% Senior Unsecured Notes due 2015
Debt Instrument [Line Items]
(Loss) gain on early extinguishment of debt									$ (100,000)
Amount of debt, redeemed, defeased, or prepaid									$ 138,800,000
Interest rate stated percentage									5.75%
Mortgage notes
Debt Instrument [Line Items]
Number of real estate properties secured by mortgage \| property											2				2
Real estate properties, net											$ 56,200,000				$ 56,200,000
Mortgage notes payable, net											$ 32,600,000				$ 32,600,000