InvenTrust Properties (IVT) 10-Q 7 Nov 19 2019 Q3 Quarterly report Financial data

Cover Page

Cover Page - shares	9 Months Ended
	Sep. 30, 2019	Nov. 01, 2019
Cover page.
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2019
Document Transition Report	false
Entity File Number	000-51609
Entity Registrant Name	INVENTRUST PROPERTIES CORP.
Entity Central Index Key	0001307748
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q3
No Trading Symbol Flag	true
Entity Incorporation, State or Country Code	MD
Entity Tax Identification Number	34-2019608
Entity Address, Address Line One	3025 Highland Parkway,
Entity Address, Address Line Two	Suite 350
Entity Address, City or Town	Downers Grove,
Entity Address, State or Province	IL
Entity Address, Postal Zip Code	60515
City Area Code	(855)
Local Phone Number	377-0510
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Title of 12(b) Security	Common Stock
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		728,722,763

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Investment properties
Land	$ 603,730	$ 558,817
Building and other improvements	1,778,436	1,670,678
Construction in progress	4,238	12,788
Total	2,386,404	2,242,283
Less accumulated depreciation	(280,483)	(286,330)
Net investment properties	2,105,921	1,955,953
Cash and cash equivalents	113,785	260,131
Restricted cash	5,032	4,722
Investment in unconsolidated entities	120,050	156,132
Intangible assets, net	124,040	108,005
Accounts and rents receivable, net	28,181	27,087
Deferred costs and other assets, net	23,105	23,976
Total assets	2,520,114	2,536,006
Liabilities
Debt, net	573,097	561,782
Accounts payable and accrued expenses	37,972	32,784
Distributions payable	13,408	13,029
Intangible liabilities, net	45,676	46,985
Other liabilities	29,018	29,112
Total liabilities	699,171	683,692
Commitments and contingencies
Stockholders' Equity
Preferred stock, $.001 par value, 40,000,000 shares authorized, none outstanding	0	0
Common stock, $.001 par value, 1,460,000,000 shares authorized, 728,722,763 shares issued and outstanding as of September 30, 2019 and 728,558,989 shares issued and outstanding as of December 31, 2018.	729	729
Additional paid-in capital	5,588,008	5,585,758
Distributions in excess of accumulated net income	(3,766,326)	(3,735,810)
Accumulated comprehensive (loss) income	(1,468)	1,637
Total stockholders' equity	1,820,943	1,852,314
Total liabilities and stockholders' equity	$ 2,520,114	$ 2,536,006

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Sep. 30, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized	40,000,000	40,000,000
Preferred stock, shares outstanding	0	0
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized	1,460,000,000	1,460,000,000
Common stock, shares issued	728,722,763	728,558,989
Common stock, shares outstanding	728,722,763	728,558,989

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations and Comprehensive (Loss) Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Income
Lease income, net	$ 56,768	$ 58,766	$ 167,312	$ 181,139
Total income	58,169	60,094	171,750	185,418
Operating expenses
Depreciation and amortization	24,253	29,684	71,807	77,768
Property operating expenses	8,460	8,216	22,969	25,864
Real estate taxes	9,000	8,712	27,009	27,742
General and administrative expenses	8,379	9,628	25,788	26,617
Total operating expenses	50,092	56,240	147,573	157,991
Interest, dividend and other income	124	361	1,434	2,004
Interest expense, net	(6,077)	(5,954)	(17,182)	(19,047)
(Loss) gain on extinguishment of debt, net	(2,092)	(4)	(2,901)	10,693
Provision for asset impairment	(2,359)	(2,713)	(2,359)	(3,510)
Gain on sale and transfer of investment properties, net	26,781	13,476	32,443	51,741
Equity in earnings (losses) of unconsolidated entities	572	(43)	(48)	(2,795)
Realized and unrealized investment gains	0	13	0	236
Total other income	16,949	5,136	11,387	39,322
Income before income taxes	25,026	8,990	35,564	66,749
Income tax expense	(100)	(43)	(359)	(407)
Net income from continuing operations	24,926	8,947	35,205	66,342
Net loss from discontinued operations	0	0	(25,500)	0
Net income	$ 24,926	$ 8,947	$ 9,705	$ 66,342
Weighted-average number of common shares outstanding, basic	728,722,763	768,385,770	728,645,975	772,341,263
Weighted-average number of common shares outstanding, diluted	729,456,722	769,306,859	729,221,226	772,971,787
Net income per common share, from continuing operations, basic and diluted (in dollars per share)	$ 0.03	$ 0.01	$ 0.05	$ 0.09
Net loss per common share, from discontinued operations, basic and diluted (in dollars per share)	0	0	(0.03)	0
Net income per common share, basic and diluted (in dollars per share)	0.03	0.01	0.02	0.09
Distributions declared per common share outstanding (in dollars per share)	0.02	0.01	0.06	0.05
Distributions paid per common share outstanding (in dollars per share)	$ 0.02	$ 0.01	$ 0.05	$ 0.05
Comprehensive income
Net income	$ 24,926	$ 8,947	$ 9,705	$ 66,342
Unrealized (loss) gain on derivatives	(1,587)	142	(1,903)	1,218
Reclassification to interest expense, net	(343)	(284)	(1,202)	(593)
Comprehensive income	22,996	8,805	6,600	66,967
Other property income
Income
Income	333	363	1,605	1,314
Other fee income
Income
Income	$ 1,068	$ 965	$ 2,833	$ 2,965

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Changes in Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Distributions in excess of accumulated net income	Accumulated Comprehensive Income
Balance at the beginning (in shares) at Dec. 31, 2017		774,293,197
Balance at the beginning, value at Dec. 31, 2017	$ 1,905,722	$ 773	$ 5,681,912	$ (3,778,908)	$ 1,945
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	34,232			34,232
Unrealized gain on derivatives	760				760
Reclassification to interest expense, net	(93)				(93)
Distributions declared	(13,860)			(13,860)
Share-based compensation, net (in shares)		18,057
Stock-based compensation, net	545		545
Balance at the end (in shares) at Mar. 31, 2018		774,311,254
Balance at the end, value at Mar. 31, 2018	1,940,062	$ 773	5,682,457	(3,745,505)	2,337
Balance at the beginning (in shares) at Dec. 31, 2017		774,293,197
Balance at the beginning, value at Dec. 31, 2017	1,905,722	$ 773	5,681,912	(3,778,908)	1,945
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	66,342
Unrealized gain on derivatives	1,218
Reclassification to interest expense, net	(593)
Balance at the end (in shares) at Sep. 30, 2018		727,949,198
Balance at the end, value at Sep. 30, 2018	1,847,273	$ 728	5,584,538	(3,740,288)	2,295
Balance at the beginning (in shares) at Mar. 31, 2018		774,311,254
Balance at the beginning, value at Mar. 31, 2018	1,940,062	$ 773	5,682,457	(3,745,505)	2,337
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	23,163			23,163
Unrealized gain on derivatives	316				316
Reclassification to interest expense, net	(216)				(216)
Distributions declared	(13,863)			(13,863)
Share-based compensation, net (in shares)		137,893
Stock-based compensation, net	751		751
Balance at the end (in shares) at Jun. 30, 2018		774,449,147
Balance at the end, value at Jun. 30, 2018	1,950,213	$ 773	5,683,208	(3,736,205)	2,437
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	8,947			8,947
Unrealized gain on derivatives	142				142
Reclassification to interest expense, net	(284)				(284)
Distributions declared	(13,030)			(13,030)
Share-based compensation, net (in shares)		3,590
Stock-based compensation, net	516		516
Repurchase of common stock (in shares)		(46,503,539)
Repurchase of common stock	(99,231)	$ (45)	(99,186)	0	0
Balance at the end (in shares) at Sep. 30, 2018		727,949,198
Balance at the end, value at Sep. 30, 2018	1,847,273	$ 728	5,584,538	(3,740,288)	2,295
Balance at the beginning (in shares) at Dec. 31, 2018		728,558,989
Balance at the beginning, value at Dec. 31, 2018	1,852,314	$ 729	5,585,758	(3,735,810)	1,637
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(9,499)			(9,499)
Unrealized gain on derivatives	(112)				(112)
Reclassification to interest expense, net	(432)				(432)
Distributions declared	(13,405)			(13,405)
Stock-based compensation, net	397		397
Balance at the end (in shares) at Mar. 31, 2019		728,558,989
Balance at the end, value at Mar. 31, 2019	1,829,263	$ 729	5,586,155	(3,758,714)	1,093
Balance at the beginning (in shares) at Dec. 31, 2018		728,558,989
Balance at the beginning, value at Dec. 31, 2018	1,852,314	$ 729	5,585,758	(3,735,810)	1,637
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	9,705
Unrealized gain on derivatives	(1,903)
Reclassification to interest expense, net	(1,202)
Balance at the end (in shares) at Sep. 30, 2019		728,722,763
Balance at the end, value at Sep. 30, 2019	1,820,943	$ 729	5,588,008	(3,766,326)	(1,468)
Balance at the beginning (in shares) at Mar. 31, 2019		728,558,989
Balance at the beginning, value at Mar. 31, 2019	1,829,263	$ 729	5,586,155	(3,758,714)	1,093
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(5,722)			(5,722)
Unrealized gain on derivatives	(204)				(204)
Reclassification to interest expense, net	(427)				(427)
Distributions declared	(13,408)			(13,408)
Share-based compensation, net (in shares)		163,774
Stock-based compensation, net	1,195		1,195
Balance at the end (in shares) at Jun. 30, 2019		728,722,763
Balance at the end, value at Jun. 30, 2019	1,810,697	$ 729	5,587,350	(3,777,844)	462
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	24,926			24,926
Unrealized gain on derivatives	(1,587)				(1,587)
Reclassification to interest expense, net	(343)				(343)
Distributions declared	(13,408)			(13,408)
Stock-based compensation, net	658		658
Balance at the end (in shares) at Sep. 30, 2019		728,722,763
Balance at the end, value at Sep. 30, 2019	$ 1,820,943	$ 729	$ 5,588,008	$ (3,766,326)	$ (1,468)

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Cash flows from operating activities:
Net income	$ 9,705	$ 66,342
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	71,807	77,768
Amortization of above and below-market leases and lease inducements, net	(4,546)	(3,852)
Amortization of debt premiums, discounts and financing costs, net	1,279	797
Straight-line rent adjustment, net	(2,823)	(3,237)
Provision for asset impairment	2,359	3,510
Gain on sale and transfer of investment properties, net	(32,443)	(51,741)
Loss (gain) on extinguishment of debt, net	2,901	(10,693)
Equity in losses of unconsolidated entities	48	2,795
Distributions from unconsolidated entities	6,034	5,069
Stock-based compensation, net	3,454	3,187
Realized and unrealized investment gains	0	(236)
Provision for indemnification claims	25,500	0
Changes in assets and liabilities:
Accounts and rents receivable, net	(686)	400
Deferred costs and other assets	(2,175)	3,742
Accounts payable and accrued expenses	5,636	7,862
Other liabilities	139	(22)
Net cash provided by operating activities	86,189	101,691
Cash flows from investing activities:
Purchase of investment properties	(329,493)	(149,781)
Acquired in-place and market lease intangibles, net	(29,602)	(8,935)
Capital expenditures and tenant improvements	(14,861)	(17,636)
Investment in development projects	(5,658)	(2,028)
Proceeds from sale and transfer of investment properties, net	183,588	254,424
Indemnification payment related to the sale of investment properties	(30,000)	0
Proceeds from the sale of marketable securities, net	0	3,609
Proceeds from the sale of unconsolidated entity	30,000	0
Contributions to unconsolidated entities	0	(2,761)
Distributions from unconsolidated entities	0	282
Lease commissions and other leasing costs	(3,864)	(5,353)
Other assets	477	(89)
Other liabilities	(239)	(330)
Net cash (used in) provided by investing activities	(199,652)	71,402
Cash flows from financing activities:
Shares repurchased	0	(98,666)
Distributions	(39,842)	(41,164)
Proceeds from debt	118,000	52,000
Pay-off of debt	(106,041)	(68,096)
Debt prepayment penalties	(2,692)	(1,617)
Principal payments of debt	(1,382)	(1,423)
Payment of finance lease liabilities	(343)	0
Payment of loan fees and deposits	(273)	(619)
Net cash used in financing activities	(32,573)	(159,585)
Net (decrease) increase in cash, cash equivalents, and restricted cash	(146,036)	13,508
Cash, cash equivalents, and restricted cash at the beginning of the period	264,853	171,878
Cash, cash equivalents, and restricted cash at the end of the period	118,817	185,386
Reconciliation of cash, cash equivalents, and restricted cash to condensed consolidated balance sheets:
Cash, cash equivalents, and restricted cash at the end of the period	264,853	171,878
Cash flow disclosure, including non-cash activities:
Cash paid for interest, net of capitalized interest of $89 and $0	16,089	18,504
Cash paid for income taxes, net of refunds of $438 and $138	504	1,040
Cash paid for operating lease liabilities	568	0
Right-of-use assets obtained in exchange for operating lease liabilities	2,890	0
Lease liabilities arising from obtaining right-of-use assets	3,114	0
Distributions payable	13,408	13,030
Accrued investment in re-development projects	300	362
Accrued lease commissions and other leasing costs	232	410
Tenant building construction placed into service	7,950	0
Accrued common stock repurchase costs	0	565
Purchase of investment properties:
Net investment properties	332,449	150,477
Accounts and rents receivable, lease intangibles, and deferred costs and other assets	37,103	14,121
Accounts payable and accrued expenses, lease intangibles, and other liabilities	(10,457)	(5,882)
Cash outflow for purchase of investment properties, net	359,095	158,716
Capitalized acquisition costs	(2,334)	(260)
Construction escrow accounts	0	467
Credits and other changes in cash outflow, net	9,003	877
Gross acquisition price of investment properties	365,764	159,800
Sale and transfer of investment properties:
Net investment properties	153,081	251,383
Accounts and rents receivable, lease intangibles, and deferred costs and other assets	5,683	10,077
Debt extinguished through the transfer of properties	0	(44,331)
Debt assumed by the buyer through the disposition of properties	0	(14,854)
Gain on sale and transfer of investment properties, net	32,443	51,741
(Loss) gain on extinguishment of debt	(2,092)	10,697
Proceeds from sale and transfer of investment properties, net	183,588	254,424
Transfer of mortgage principal to buyer	0	16,600
Surrender of mortgage escrows for transferred properties	0	2,160
Credits and other changes in cash inflow, net	6,612	9,766
Gross disposition price of investment properties	$ 190,200	$ 282,950

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Cash Flows (Parenthetical) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Statement of Cash Flows [Abstract]
Interest Paid, Capitalized, Investing Activities	$ 89	$ 0
Income tax refunds	$ 438	$ 138

Organization

Organization	9 Months Ended
	Sep. 30, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization	Organization On October 4, 2004, the Company was incorporated as Inland American Real Estate Trust, Inc. as a Maryland corporation and has elected to be taxed, and currently qualifies, as a real estate investment trust ("REIT") for federal tax purposes. The Company changed its name to InvenTrust Properties Corp. in April of 2015 and is focused on owning, managing, acquiring and developing a multi-tenant retail platform. The Company is taxed and operates in a manner that will allow the Company to continue to qualify as a REIT for U.S. federal income tax purposes. So long as it maintains its qualification as a REIT, the Company generally will not be subject to U.S. federal income tax on taxable income that is distributed to stockholders. If the Company fails to continue to qualify as a REIT in any taxable year, without the benefit of certain relief provisions, the Company will be subject to U.S. federal and state income tax on its taxable income at regular corporate tax rates and will not be able to re-elect REIT status during the four years following the year of the failure. The accompanying condensed consolidated financial statements include the accounts of the Company and all wholly-owned subsidiaries and any consolidated variable interest entities ("VIEs"). Subsidiaries generally consist of limited liability companies ("LLCs") and limited partnerships ("LPs"). All significant intercompany balances and transactions have been eliminated. Each retail property is owned by a separate legal entity that maintains its own books and financial records, and each separate legal entity's assets are not available to satisfy the liabilities of other affiliated entities, except as otherwise disclosed in " Note 7. Debt ." As of September 30, 2019 , the Company's wholly-owned investment properties consisted of 57 retail properties with a gross leasable area ("GLA") of approximately 9.3 million square feet. As of September 30, 2018 , the Company's wholly-owned or consolidated investment properties consisted of 63 retail properties, with a GLA of approximately 10.5 million square feet. In addition, as of September 30, 2019 and 2018, the Company had an investment in one unconsolidated real estate joint venture which owns an interest in 11 and 14 retail properties, respectively, with GLA of approximately 2.6 million and 3.0 million square feet, respectively, managed by the Company. As of September 30, 2018, the Company had an investment in a separate unconsolidated real estate joint venture which owned land being developed in Sacramento, California. The Company has since liquidated its interest in that venture as disclosed in " Note 6. Investment in Consolidated and Unconsolidated Entities

Basis of Presentation and Recen

Basis of Presentation and Recently Issued Accounting Pronouncements	9 Months Ended
	Sep. 30, 2019
Accounting Policies [Abstract]
Basis of Presentation and Recently Issued Accounting Pronouncements	Basis of Presentation and Recently Issued Accounting Pronouncements The accompanying condensed consolidated financial statements have been prepared in accordance with GAAP, which requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenues and expenses during the reporting periods. Significant estimates, judgments and assumptions are required in a number of areas, including, but not limited to, evaluating the impairment of long-lived assets, allocating the purchase price of acquired assets, determining the fair value of debt and evaluating the collectability of accounts and rents receivable. The Company bases these estimates, judgments and assumptions on historical experience and various other factors that the Company believes to be reasonable under the circumstances. Actual results may differ from these estimates. Recently Issued Accounting Pronouncements Adopted Standard Description Date of adoption Effect on the financial statements or other significant matters ASU No. 2016-02, Leases, (Topic 842) and related updates ASU No. 2016-02 amends the existing guidance for lease accounting for both parties to a lease contract (i.e., lessees and lessors). The new standard requires a modified retrospective transition method for all leases existing at the date of initial application, with an option to use certain practical expedients available. January 2019 The Company adopted ASU No. 2016-02 and the related updates on a modified retrospective basis and applied the effective date method in which the elected practical expedients were applied consistently to all leases commenced before the ASU effective date of January 1, 2019. Recently Issued Accounting Pronouncements Not Yet Adopted Standard Description Date of adoption Effect on the financial statements or other significant matters ASU No. 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement ASU No. 2018-13 is intended to improve the effectiveness of the disclosures required by Topic 820, Fair Value Measurement by eliminating, amending, or adding certain disclosures. Certain amendments require a prospective transition method, while others require a retrospective transition method. The guidance is effective for all entities for fiscal years beginning after December 15, 2019, and early adoption is permitted. January 2020 The Company is continuing to evaluate this guidance, but expects the standard to only impact fair value measurement disclosures, and therefore should have no impact on the Company's condensed consolidated financial position, results of operations, or cash flows.

Revenue Recognition

Revenue Recognition	9 Months Ended
	Sep. 30, 2019
Revenue from Contract with Customer [Abstract]
Revenue Recognition	Revenue Recognition Operating Leases The majority of revenue recognized from the Company's retail properties consists of minimum lease payments received from tenants under long-term operating leases with varying terms. In addition to minimum lease payments, some leases provide for the reimbursement of the tenant’s pro rata share of certain operating expenses incurred by the landlord as recoveries, including real estate taxes, special assessments, insurance, utilities, common area maintenance, management fees and certain capital repairs. Certain other tenants are subject to net leases whereby the tenant is responsible for fixed minimum lease payments to the Company, as well as directly paying all costs and expenses associated with occupancy to third party service providers. Such direct payments to third parties are not recorded as revenue and expense by the Company. In conjunction with the adoption of Topic 842, Leases ("Topic 842") on January 1, 2019, the Company elected the package of practical expedients that permits the Company to not reassess: (1) whether any expired or existing contracts are or contain leases; (2) the lease classification for any expired or existing leases; and (3) any initial direct costs for existing leases as of the effective date. Except as described below, the Company's accounting policies and resulting recognition of lease income remained substantially consistent with previous guidance. As a result of the narrowed definition of initial direct costs under Topic 842, the Company expenses as incurred certain lease origination costs previously capitalized and amortized to expense over the lease term. The Company has elected the practical expedient of not separating lease and non-lease components for all qualifying leases. In effect, this will generally relieve the Company from the requirement to account for certain consideration under the new revenue standard. As a result of the accounting policy election, all income arising from leases is presented on a combined basis as lease income, net on the condensed consolidated statements of operations and comprehensive income. Beginning on January 1, 2019, the provision for estimated credit losses resulting from changes in the collectability of lease payments will be recognized as a direct reduction to lease income on the condensed consolidated statements of operations and comprehensive income and a direct write-off of the operating lease receivable on the condensed consolidated balance sheets. Changes in collectability occur when the Company no longer believes it is probable that substantially all of the lease payments will be collected. If collection is not probable, the lease payments will be accounted for on a cash basis, and revenue will be recorded as received. When reassessed and the collection of substantially all of the lease payments from the tenant becomes probable, the accrual basis of revenue recognition will be reestablished. Consistent with previous guidance, unless there is a change in the minimum lease payment credit risk, changes in the collectability of billed and unbilled recoveries will continue to be recognized as bad debt expense in property operating expenses on the condensed consolidated statements of operations and comprehensive income and an allowance for doubtful accounts established on the condensed consolidated balance sheets. As of September 30, 2019 , minimum lease payments to be received under long-term operating leases and short-term specialty leases, excluding additional percentage rent based on tenants' sales volume and tenant reimbursements of certain operating expenses, and assuming no exercise of renewal options or early termination rights, are as follows: Minimum Lease Payments Remaining 2019 $ 40,463 2020 154,921 2021 142,373 2022 121,061 2023 104,764 Thereafter 377,833 Total $ 941,415 As of December 31, 2018 , minimum lease payments to be received under long-term operating leases and short-term specialty leases, excluding additional percentage rent based on tenants' sales volume and tenant reimbursements of certain operating expenses, and assuming no exercise of renewal options or early termination rights, are as follows: Minimum Lease Payments 2019 $ 151,874 2020 139,290 2021 124,366 2022 103,204 2023 83,744 Thereafter 282,629 Total $ 885,107 Topic 842 Reclassifications The Company has chosen to apply the combined presentation of lease income, net, required by Topic 842 retrospectively to the three and nine months ended September 30, 2018, by combining amounts previously reported as rental income and tenant recovery income, and making certain other reclassifications to the condensed consolidated statements of operations and comprehensive income. The following table reflects the disaggregation of lease income, net: Three months ended Nine months ended 2019 2018 2019 2018 Minimum lease payments $ 40,664 $ 42,990 $ 119,130 $ 131,173 Billed and unbilled tax and insurance recoveries 8,520 7,613 25,495 25,788 Billed and unbilled common area maintenance and other recoveries 5,627 6,000 16,752 18,602 Amortization of above and below-market leases and lease inducements, net 1,628 1,104 4,546 3,852 Short-term, termination fee and other lease income 505 1,458 2,654 2,489 Estimated credit losses (176 ) (399 ) (1,265 ) (765 ) Lease income, net $ 56,768 $ 58,766 $ 167,312 $ 181,139 Contracts with Customers The Company earned other fee income of $1,068 and $2,833 for the three and nine months ended September 30, 2019 , respectively, and $965 and $2,965 for the three and nine months ended September 30, 2018 , respectively, which is comprised of fees derived from services provided to IAGM Retail Fund I, LLC ("IAGM"), an unconsolidated retail joint venture partnership between the Company as 55% owner and PGGM Private Real Estate Fund ("PGGM"), as disclosed in " Note 6. Investment in Consolidated and Unconsolidated Entities ", and therefore deemed to be related party transactions. The property management, asset management, leasing and other services are provided over the term of the contract, which has a remaining original duration through 2023. The Company has receivables of $473 and $778 as of September 30, 2019 and December 31, 2018, respectively, from services provided to IAGM which are included in deferred costs and other assets, net, on the condensed consolidated balance sheets. The following table reflects the disaggregation of other fee income: Three months ended Nine months ended 2019 2018 2019 2018 Property management fees $ 592 $ 631 $ 1,818 $ 1,996 Asset management fees 278 269 795 831 Leasing commissions and other fees 198 65 220 138 Other fee income $ 1,068 $ 965 $ 2,833 $ 2,965

Acquired Properties

Acquired Properties	9 Months Ended
	Sep. 30, 2019
Asset Acquisition [Abstract]
Acquired Properties	Acquired Properties The following table reflects the retail properties acquired, accounted for as asset acquisitions, during the nine months ended September 30, 2019 : Acquisition Date Property Metropolitan Statistical Area ("MSA")(a) Gross Square Feet January 31, 2019 Commons at University Place Raleigh-Cary, NC $ 23,250 92,000 March 20, 2019 Lakeside Winter Park Orlando-Kissimmee-Sanford, FL 63,500 76,000 April 30, 2019 Scofield Crossing (b) Austin-Round Rock, TX 3,000 64,000 May 7, 2019 Tomball Town Center Kroger Houston-The Woodlands-Sugar Land, TX 13,992 74,000 June 14, 2019 Sandy Plains Outparcel (c) Atlanta-Sandy Springs-Roswell, GA 2,900 6,000 June 28, 2019 Shoppes at Fairview Dallas-Fort Worth-Arlington, TX 36,000 67,500 July 11, 2019 Southern Palm Crossing (d) Miami-Fort Lauderdale-West Palm Beach, FL 96,750 346,200 September 9, 2019 Travilah Square Washington-Arlington-Alexandria, DC-VA-MD-WV 52,272 58,300 September 13, 2019 Eldorado Marketplace Dallas-Fort Worth-Arlington, TX 70,850 189,500 September 27, 2019 Garden Village Outparcel (c) Los Angeles-Long Beach-Anaheim, CA 3,250 3,900 $ 365,764 977,400 (a) As defined by the United States Office of Management and Budget. (b) The building and tenant improvements were acquired subject to an existing ground lease at the property. (c) The assets, liabilities and operations of the adjacent outparcels acquired are included as part of existing retail properties owned by the Company. (d) This acquisition was made through a consolidated VIE and was used to facilitate a reverse like-kind exchange under Section 1031 of the Internal Revenue Code of 1986, as amended ("Reverse 1031 Exchanges"). During the third quarter of 2019, the title of Southern Palm Crossing transferred to the Company through the completion of an exchange with the dispositions of West Creek and Boynton Commons. The following table reflects the retail properties acquired, accounted for as asset acquisitions, during the nine months ended September 30, 2018 : Acquisition Date Property MSA Gross Square Feet May 16, 2018 PGA Plaza (a) Miami-Fort Lauderdale-West Palm Beach, FL $ 88,000 120,000 May 30, 2018 Kennesaw Marketplace (a) Atlanta-Sandy Springs-Roswell, GA 64,300 117,000 September 13, 2018 Kennesaw Marketplace, Phase 3 (b) Atlanta-Sandy Springs-Roswell, GA 7,500 13,000 $ 159,800 250,000 (a) These acquisitions were made through two consolidated VIEs and were used to facilitate Reverse 1031 Exchanges. During the last quarter of 2018, the title of PGA Plaza and Kennesaw Marketplace transferred to the Company through the completion of an exchange and expiration of the 180-day waiting period, respectively. (b) The assets, liabilities and operations of Kennesaw Marketplace, Phase 3, acquired are included as part of an existing retail property owned by the Company. The Company incurred transaction costs of $1,416 and $2,334 during the three and nine months ended September 30, 2019 , respectively, and $60 and $260 during the three and nine months ended September 30, 2018

Disposed Properties

Disposed Properties	9 Months Ended
	Sep. 30, 2019
Discontinued Operations and Disposal Groups [Abstract]
Disposed Properties	Disposed Properties The following table reflects the retail properties disposed of during the nine months ended September 30, 2019 : Disposition Date Property Square Gross Gain (loss) on sale of investment properties, net Loss on extinguishment April 3, 2019 Brooks Corner 173,000 $ 26,300 $ 5,531 $ (809 ) May 31, 2019 Silverlake 101,000 6,650 131 — August 15, 2019 Promenade Fultondale 207,600 23,200 1,861 — August 21, 2019 Crossroads at Chesapeake Square 198,700 23,100 1,353 — September 10, 2019 West Creek 53,300 18,700 5,962 — September 13, 2019 Boynton Commons 210,300 50,000 18,405 — September 25, 2019 Quebec Square 207,600 42,250 (800 ) (2,092 ) 1,151,500 $ 190,200 $ 32,443 $ (2,901 ) In aggregate, the Company recognized net proceeds of $183,588 from the sales of these properties on the condensed consolidated statement of cash flows during the nine months ended September 30, 2019. The following table reflects the retail properties disposed of during the nine months ended September 30, 2018 : Disposition Date Property Square Gross Gain (loss) on sale and transfer of investment properties, net Gain (loss) on extinguishment January 9, 2018 Sherman Town Center I & II 485,000 $ 63,000 $ 12,382 $ — January 25, 2018 Grafton Commons 239,000 33,500 6,564 — March 8, 2018 Lakeport Commons 283,000 31,000 (666 ) — March 21, 2018 Stonecrest Marketplace (a) 265,000 — 1,777 10,752 March 31, 2018 Northwest Marketplace (b) — — 248 — April 17, 2018 Market at Morse/Hamilton 45,000 10,000 1,592 — May 24, 2018 Siegen Plaza 156,000 29,000 3,849 (54 ) June 20, 2018 Tomball Town Center 67,000 22,750 7,184 — June 26, 2018 Bellerive Plaza (c) 76,000 — (22 ) 1,694 June 28, 2018 Parkway Centre North 143,000 23,700 5,357 (1,695 ) September 14, 2018 Tulsa Hills 473,000 70,000 13,476 — 2,232,000 $ 282,950 $ 51,741 $ 10,697 (a) On March 21, 2018, the Company surrendered Stonecrest Marketplace, with a carrying value of $23,932 , to the lender in satisfaction of non-recourse debt with an initial maturity date of March 1, 2017, and recognized a gain on transfer of assets, net, of $1,777 . The Company is not aware of any material outstanding commitments and contingencies related to Stonecrest Marketplace. (b) The Company recognized a gain on sale of $248 related to the completion of a partial condemnation at this retail property. (c) On June 26, 2018, the Company surrendered Bellerive Plaza, with a carrying value of $4,771 , to the lender in satisfaction of non-recourse debt with an initial maturity date of June 1, 2017. The Company recognized a loss on transfer of assets, net, of $22 . The Company is not aware of any material outstanding commitments and contingencies related to Bellerive Plaza. (d) In addition to the gain or loss recognized as a result of the disposition of retail properties, the Company extinguished an additional loan on a retained retail property resulting in a loss on debt extinguishment of $4 . In aggregate, the Company recognized net proceeds of $254,424 from the sales and condemnation of these properties on the condensed consolidated statement of cash flows during the nine months ended September 30, 2018 .

Investment in Consolidated and

Investment in Consolidated and Unconsolidated Entities	9 Months Ended
	Sep. 30, 2019
Investment in Partially Owned Entities [Abstract]
Investment in Consolidated and Unconsolidated Entities	Investment in Consolidated and Unconsolidated Entities Consolidated Entities As of September 30, 2019 , the Company has no VIEs. During the fourth quarter of 2018, the Company entered into purchase agreements structured as Reverse 1031 Exchanges to acquire Sandy Plains Centre, which was the Company's only consolidated VIE as of December 31, 2018 . Due to the expiration of the 180-day waiting period subsequent to December 31, 2018 , the Reverse 1031 Exchange was terminated and the title of Sandy Plains Centre transferred to the Company. The liabilities of the VIE are non-recourse to the Company, and the assets must first be used to settle obligations of the VIE. The following table presents the net assets of the VIE: December 31, 2018 Net investment properties $ 39,634 Other assets 4,457 Total assets 44,091 Liabilities (385 ) Net assets $ 43,706 Unconsolidated Entities The entities listed below are owned by the Company and other unaffiliated parties in joint ventures. Net income, distributions and capital transactions for these entities are allocated to the Company and its joint venture partners in accordance with the respective partnership agreements. Current Ownership % Carrying Value of Investment as of Entity Description September 30, 2019 December 31, 2018 IAGM Retail Fund I, LLC Multi-tenant retail shopping centers 55% $ 120,050 $ 126,195 Downtown Railyard Venture, LLC Land development —% — 30,049 Other unconsolidated entities Various real estate investments Various — (112 ) $ 120,050 $ 156,132 IAGM On April 17, 2013, the Company entered into a joint venture, IAGM, with PGGM for the purpose of acquiring, owning, managing, supervising and disposing of retail properties and sharing in the profits and losses from those retail properties and their activities. The Company contributed 14 properties to IAGM during the year ended December 31, 2013, and treated the contribution as a partial sale under Topic 360-20, " Property, Plant and Equipment - Real Estate Sales, " and deferred an aggregate gain of $15,625 as a result of the property sales into the joint venture. Through December 31, 2017, the Company was amortizing the basis adjustment over 30 years, consistent with the depreciation period of the investee's underlying assets. In accordance with the provisions of ASU No. 2017-05, full gain recognition may be required for property sales in which the Company has continuing involvement, when those gains may have been deferred under prior GAAP. As of January 1, 2018, with the adoption of ASU No. 2017-05, the Company's remaining $12,756 of the aforementioned deferred gain had been recognized through beginning distributions in excess of accumulated net income. During the nine months ended September 30, 2019, IAGM disposed of Rockwell Plaza, a 255,000 square foot retail property, for a gross disposition price of $20,500 and recognized a provision for asset impairment of $1,443 and a loss on sale of $559 . The Company's share of IAGM's provision for asset impairment was $794 and its share of the loss on sale was $307 . Proceeds from the sale were used to extinguish the related $16,250 non-recourse mortgage loan. During the three months ended September 30, 2018 , IAGM recognized a provision for asset impairment of $1,405 on one retail property. During the nine months ended September 30, 2018 , IAGM recognized a provision for asset impairment of $3,673 on three retail properties. During the nine months ended September 30, 2018 , IAGM disposed of one retail property and recognized a loss on sale of $3,905 . For the three and nine months ended September 30, 2018, the Company's share of IAGM's provision for asset impairment was $773 and $2,020 , respectively, and its share of the loss on sale for the nine months ended September 30, 2018 was $2,148 . Downtown Railyard Ventures, LLC On September 30, 2015, the Company was admitted as a member of Downtown Railyard Venture, LLC ("DRV"), which was a joint venture established for the purpose of developing and selling a land development in Sacramento, California. On June 24, 2019, the Company liquidated all interests in DRV in exchange for $30,000 of cash consideration. During the year ended December 31, 2018, the Company recorded an other-than-temporary impairment of $29,933 on DRV due to a reduction in the expected hold period, thereby reducing the investment to an estimated fair value that the Company believed would be most probable of realization if the investment was liquidated. As a result of the other-than-temporary impairment, the liquidation of interests resulted in no gain or loss being recognized on the transaction. Upon liquidation, the Company has no continuing involvement with DRV. Combined Financial Information The following tables present the combined condensed financial information for the Company's unconsolidated entities. As of September 30, 2019 December 31, 2018 Assets: Real estate assets, net of accumulated depreciation $ 427,652 $ 494,583 Other assets 64,705 103,565 Total assets $ 492,357 $ 598,148 Liabilities and equity: Mortgages payable, net 256,593 272,629 Other liabilities 19,068 42,569 Equity 216,696 282,950 Total liabilities and equity $ 492,357 $ 598,148 Company's share of equity $ 120,050 $ 185,814 Outside basis difference (a) — (29,682 ) Carrying value of investments in unconsolidated entities $ 120,050 $ 156,132 (a) The outside basis difference is principally related to other-than-temporary impairment recorded in 2018 on DRV. Three months ended September 30, Nine months ended September 30, 2019 2018 2019 2018 Revenues $ 13,277 $ 15,087 $ 40,024 $ 44,951 Expenses: Interest expense and loan cost amortization 2,630 3,434 8,418 10,240 Depreciation and amortization 4,687 5,124 15,626 16,401 Operating and general and administrative expenses 4,919 4,766 14,030 15,774 Provision for asset impairment — 1,405 1,443 3,673 Total expenses 12,236 14,729 39,517 46,088 Net income (loss) before sale of real estate 1,041 358 507 (1,137 ) Gain (loss) on sale of real estate — 13 (5,540 ) (3,892 ) Net income (loss) $ 1,041 $ 371 $ (5,033 ) $ (5,029 ) Company's share of net income (loss) $ 572 $ (93 ) $ (4,451 ) $ (3,069 ) Distributions from unconsolidated entities in excess of the investments' carrying value — 50 — 274 Outside basis adjustment for investee's sale of real estate — — 4,403 — Equity in earnings (losses) of unconsolidated entities $ 572 $ (43 ) $ (48 ) $ (2,795 ) The following table shows the scheduled maturities of IAGM's mortgages payable as of September 30, 2019 , for the remainder of 2019, each of the next four years and thereafter. Maturities during the year ending December 31, 2019 2020 2021 2022 2023 Thereafter Total Mortgages payable $ — 14,872 23,150 — 180,125 40,680 $ 258,827 On June 30, 2019, IAGM entered into a one year extension on a $15,103 non-recourse mortgage loan related to one retail property. The original maturity date of June 30, 2019 was extended to June 30, 2020 and a partial paydown resulted in a new balance of $14,872 . As of September 30, 2019 and December 31, 2018, none of IAGM's mortgages payable are recourse to the Company. It is anticipated that the joint venture will be able to repay, refinance or extend all of its debt on a timely basis.

Debt

Debt	9 Months Ended
	Sep. 30, 2019
Notes and Loans Payable [Abstract]
Debt	Debt As of September 30, 2019 , the Company's total debt, net, was $573,097 , which consists of mortgages payable, net, of $175,764 and credit agreements, net, of $397,333 . The Company believes it has the ability to repay, refinance or extend any of its debt, and that it has adequate sources of funds to meet short-term cash needs related to mortgages payable. It is anticipated that the Company will use proceeds from property sales, cash on hand and available capacity on credit agreements, if any, to repay, refinance or extend the mortgages payable maturing in the near term. Mortgages Payable As of September 30, 2019 and December 31, 2018 , the Company had the following mortgages payable outstanding: September 30, 2019 December 31, 2018 Mortgages payable (a) $ 176,502 $ 213,925 Premium, net of accumulated amortization 60 239 Discount, net of accumulated amortization (130 ) (158 ) Issuance costs, net of accumulated amortization (668 ) (1,079 ) Total mortgages payable, net $ 175,764 $ 212,927 (a) Mortgages payable had fixed interest rates ranging from 3.49% to 5.49% as of September 30, 2019 and December 31, 2018 , with a weighted-average interest rate of 4.34% and 4.33% as of September 30, 2019 and December 31, 2018 , respectively. Some of the mortgage loans require compliance with certain covenants, such as debt service coverage ratios, investment restrictions and distribution limitations. As of September 30, 2019 and December 31, 2018 , the Company was in compliance with all mortgage loan requirements. The following table shows the scheduled maturities of the Company's mortgages payable as of September 30, 2019 for the remainder of 2019, each of the next four years and thereafter. Maturities during the year ending December 31, 2019 2020 2021 2022 2023 Thereafter Total Mortgages payable $ — $ 41,000 $ — $ 50,034 $ 41,138 $ 44,330 $ 176,502 Credit Agreements Unsecured revolving line of credit On December 21, 2018, the Company entered into an unsecured revolving credit agreement, which amends and restates the Company’s prior revolving credit agreement in its entirety, and provides for a $350,000 unsecured revolving line of credit (the "Revolving Credit Agreement"). The Revolving Credit Agreement has a 4 -year term maturing on December 21, 2022, with two six months extension options. Interest rates are based on the Company's total leverage ratio or, at the Company's one-time irrevocable option, upon achievement of an investment-grade credit rating. A facility fee accrues on the aggregate commitments at a rate ranging from 0.15% to 0.30% depending on the Company’s total leverage ratio, and as of September 30, 2019 and December 31, 2018 , the facility fee was 0.15% . As of September 30, 2019 and December 31, 2018, the Company had no outstanding borrowings under the Revolving Credit Agreement. Unsecured term loans On December 21, 2018, the Company entered into an unsecured term loan credit agreement, which amends and restates the Company’s prior term loan agreement in its entirety, and provides for $400,000 in unsecured term loans (the "Term Loan Agreement"). The Term Loan Agreement consists of two tranches: a $250,000 5 -year tranche maturing on December 21, 2023, and a $150,000 5.5 -year tranche maturing on June 21, 2024. Interest rates are based on the Company's total leverage ratio or, at the Company's one-time irrevocable option, upon achievement of an investment-grade credit rating. As of September 30, 2019 and December 31, 2018 , the Company had the following borrowings outstanding under its unsecured term loans: September 30, 2019 December 31, 2018 Principal Balance Interest Rate Principal Balance Interest Rate Maturity Date $250.0 million 5 year - swapped to fixed rate $ 90,000 2.5510% (a) $ 90,000 2.5510% (a) December 21, 2023 $250.0 million 5 year - swapped to fixed rate 60,000 2.5525% (a) 60,000 2.5525% (a) December 21, 2023 $250.0 million 5 year - variable-rate 50,000 3.3003% (b) 50,000 3.5493% (c) December 21, 2023 $250.0 million 5 year - variable-rate 50,000 3.3003% (b) 26,000 3.6794% (d) December 21, 2023 $150.0 million 5.5 year - variable-rate 100,000 3.3003% (b) 100,000 3.5493% (c) June 21, 2024 $150.0 million 5.5 year - variable-rate 50,000 3.3003% (b) 26,000 3.6794% (d) June 21, 2024 Total unsecured term loans 400,000 352,000 Issuance costs, net of accumulated amortization (2,667 ) (3,145 ) Total unsecured term loans, net $ 397,333 $ 348,855 (a) The Company swapped $90,000 (notional amount of $90,000 ) and $60,000 (notional amount of $60,000 ) of variable-rate debt at an interest rate of 1-Month LIBOR plus 1.20% to a fixed rate of 2.5510% and 2.5525% , respectively. The swaps have an effective date of December 10, 2015 and a termination date of December 1, 2019 . As a result, all net deferred amounts in accumulated comprehensive income related to these swaps will be reclassified into earnings during 2019. (b) Interest rate reflects 1-Month LIBOR plus 1.20% effective September 3, 2019. (c) Interest rate reflects 1-Month LIBOR plus 1.20% effective December 3, 2018. (d) Interest rate reflects 1-Month LIBOR plus 1.20% effective December 21, 2018. During the quarter ended September 30, 2019, the Company entered into four interest rate swap agreements which will effectively replace the two interest rate swaps terminating on December 1, 2019. Of the four interest rate swap agreements, two have a notional amount of $100,000 , an effective date of December 2, 2019, a termination date of December 21, 2023, and achieve a fixed interest rate of 2.68% . The other two each have a notional amount of $50,000 , an effective date of December 2, 2019, a termination date of June 21, 2024, and achieve fixed interest rates of 2.69% and 2.70% .

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2019
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements Recurring Measurements The following financial instruments are remeasured at fair value on a recurring basis: Fair Value Measurements as of September 30, 2019 December 31, 2018 Cash Flow Hedges: Level 1 Level 2 Level 3 Level 1 Level 2 Level 3 Derivative interest rate assets (a) $ — $ 161 $ — $ — $ 1,637 $ — Derivative interest rate liabilities (b) — (1,629 ) — — — — (a) Recognized as a part of deferred costs and other assets, net, on the condensed consolidated balance sheets. (b) Recognized as a part of other liabilities on the condensed consolidated balance sheets. Level 1 At September 30, 2019 and December 31, 2018 , the Company had no Level 1 recurring fair value measurements. Level 2 To calculate the fair value of the derivative interest rate instruments, the Company primarily uses quoted prices for similar contracts and inputs based on data that are observed in the forward yield curve that is widely observable in the marketplace. The Company also incorporates credit valuation adjustments to appropriately reflect both its own nonperformance risk and the respective counterparty’s nonperformance risk in the fair value measurements that utilize Level 3 inputs, such as estimates of current credit spreads. As of September 30, 2019 and December 31, 2018 , the Company determined that the credit valuation adjustments are not significant to the overall valuation of its derivatives. As a result, the Company's derivative valuations in their entirety are classified as Level 2 of the fair value hierarchy. Level 3 At September 30, 2019 and December 31, 2018 , the Company had no Level 3 recurring fair value measurements. Nonrecurring Measurements During the three and nine months ended September 30, 2019 , the Company identified one retail property that had a reduction in its expected holding period and recorded a provision for asset impairment of $2,359 on the condensed consolidated statement of operations and comprehensive income as a result of the fair value being lower than the property's carrying value. The Company's fair value was based on an executed sales contract. During the three months ended September 30, 2018, the Company identified two retail properties that had reductions in the expected holding periods and recorded an aggregate provision for asset impairment of $2,713 on the condensed consolidated statement of operations and comprehensive income as a result of the fair values being lower than the properties' carrying value. The Company's fair values were based on executed sales contracts. During the nine months ended September 30, 2018, the Company identified three retail properties that had reductions in the expected holding periods and recorded an aggregate provision for asset impairment of $3,510 on the condensed consolidated statement of operations and comprehensive income as a result of the fair values being lower than the properties' carrying value. The Company's fair values were based on executed sales contracts. The following table summarizes activity for the Company's assets measured at fair value on a nonrecurring basis and the related impairment charges for the three and nine months ended September 30, 2019 and 2018: For the three months ended September 30, For the nine months ended September 30, 2019 2018 2019 2018 Level 3 Impairment Losses Level 3 Impairment Losses Level 3 Impairment Losses Level 3 Impairment Losses Investment properties $ 42,250 $ 2,359 $ 33,075 $ 2,713 $ 42,250 $ 2,359 $ 64,075 $ 3,510 Financial Instruments Not Measured at Fair Value The table below represents the estimated fair value of financial instruments presented at carrying values in the Company's condensed consolidated financial statements as of September 30, 2019 and December 31, 2018 : September 30, 2019 December 31, 2018 Carrying Value Estimated Fair Value Carrying Value Estimated Fair Value Mortgages payable $ 176,502 $ 180,671 $ 213,925 $ 212,572 Term loans $ 400,000 $ 400,004 $ 352,000 $ 352,006 The Company estimated the fair value of its mortgages payable using a weighted-average effective market interest rate of 3.39% and 4.38% as of September 30, 2019 and December 31, 2018 , respectively. The fair value estimate of the term loans approximate the carrying value due to limited market volatility in pricing. The assumptions reflect the terms currently available on similar borrowing terms to borrowers with credit profiles similar to that of the Company's. As a result, the Company used a weighted-average interest rate of 2.57% and 3.63% as of September 30, 2019 and December 31, 2018 , respectively, to estimate the fair value of its term loans. The Company has determined that its debt instrument valuations are classified in Level 2 of the fair value hierarchy.

Earnings per Share

Earnings per Share	9 Months Ended
	Sep. 30, 2019
Earnings Per Share [Abstract]
Earnings per Share	Earnings per Share The following table summarizes the calculation of the basic and diluted earnings per share: Three months ended Nine months ended 2019 2018 2019 2018 Numerator: Net income from continuing operations $ 24,926 $ 8,947 $ 35,205 $ 66,342 Earnings allocated to unvested restricted shares (50 ) — — (77 ) Net income from continuing operations attributable to common stockholders - basic and diluted $ 24,876 $ 8,947 $ 35,205 $ 66,265 Net loss from discontinued operations attributable to common stockholders - basic and diluted $ — $ — $ (25,500 ) $ — Denominator: Weighted-average number of common shares outstanding - basic 728,722,763 768,385,770 728,645,975 772,341,263 Effect of unvested restricted shares 733,959 921,089 575,251 630,524 Weighted-average number of common shares outstanding - diluted 729,456,722 769,306,859 729,221,226 772,971,787 Income per common share: Net income from continuing operations per share - basic and diluted $ 0.03 $ 0.01 $ 0.05 $ 0.09 Net loss from discontinued operations per share - basic and diluted — — (0.03 ) — Net income per share - basic and diluted $ 0.03 $ 0.01 $ 0.02 $ 0.09

Stock-Based Compensation

Stock-Based Compensation	9 Months Ended
	Sep. 30, 2019
Share-based Payment Arrangement [Abstract]
Stock-Based Compensation	Stock-Based Compensation The following table summarizes the Company's restricted stock unit ("RSU") activity for the nine months ended September 30, 2019 : Unvested Time-Based RSUs Unvested Performance-Based RSUs Weighted-Average Grant Date Price Per Share (a) Outstanding as of January 1, 2019 1,548,150 — $3.18 Shares granted 1,225,170 967,201 $3.14 Shares vested (227,707 ) — $3.14 Shares forfeited (202,441 ) (40,779 ) $3.17 Outstanding at September 30, 2019 2,343,172 926,422 $3.15 (a) On an annual basis, the Company engages an independent third-party valuation advisory firm to estimate the per share value of the Company's common stock. On May 8, 2019, the board of directors approved the grant of time-based and performance-based RSUs under the Company's 2015 Incentive Award Plan. Stock-based compensation expense is recognized on a straight-line basis over the vesting period for time-based RSUs and recognized, when achievement of the performance condition is deemed probable, on a straight-line basis over the vesting period for performance-based RSUs. Forfeitures of all stock-based awards are recognized as they occur. As of September 30, 2019 , there was $7,161 of total unrecognized compensation expense related to unvested stock-based compensation arrangements that will vest through December 2019, 2020 and 2021, as applicable. The Company recognized stock-based compensation expense of $1,289 and $3,454 for the three and nine months ended September 30, 2019 , respectively, and $1,103 and $3,187 for the three and nine months ended September 30, 2018 , respectively, as a part of general and administrative expenses on the condensed consolidated statements of operations and comprehensive income.

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2019
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies The Company is subject, from time to time, to various types of third-party legal claims or litigation that arises in the ordinary course of business, including, but not limited to, property loss claims, personal injury or other damages resulting from contact with the Company’s properties. These claims and lawsuits and any resulting damages are generally covered by the Company's insurance policies. The Company accrues for legal costs associated with loss contingencies when these costs are probable and reasonably estimable. While the resolution of these matters cannot be predicted with certainty, management does not expect, based on currently available information, that the final outcome of any pending claims or legal proceedings will have a material adverse effect on the financial condition, results of operations or cash flows of the Company. University House Communities Group, Inc., Indemnity Claims The Company received an indemnity notice from UHC Acquisition Sub LLC ("UHC") regarding certain matters under the Stock Purchase Agreement, dated January 3, 2016, for University House Communities Group, Inc., which was sold in June 2016. The notice sets forth various items for which UHC believes they are entitled to indemnification from the Company. In the normal course of property dispositions, pursuant to the purchase and sale agreements, certain indemnification claims can be made against the Company by the purchaser, and the Company will continue to adjust the financial statements, as necessary, based on those claims. Based on the facts and circumstances of the indemnification claims made, guidance provided by third-party specialists and external counsel, and management’s ongoing assessment of the UHC claims, in 2017 the Company accrued a potential loss contingency representing their best estimate of the potential loss related to these claims. Since 2017, the Company has increased the accrual, when appropriate, based on changes to those facts and circumstances of the indemnification claims made, guidance provided by third-party specialists and external counsel, and management’s ongoing assessment of the UHC claims. On June 14, 2019, UHC and the Company, through various negotiations, reached a final settlement for the claims in the amount of $30,000 , which was paid by the Company on June 24, 2019. During the nine months ended September 30, 2019 , the Company recognized losses from discontinued operations of $25,500 related to these claims. Operating and Finance Lease Commitments The Company has non-cancelable contracts of property improvements that have been deemed to contain finance leases that, prior to the adoption of Topic 842, were previously classified as capital leases. In addition, the Company has non-cancelable operating leases for office space used in its business and upon the adoption of Topic 842, the Company recognized operating lease right-of-use ("ROU") assets of $2,890 and lease liabilities of $3,114 . In conjunction with the adoption of Topic 842, the Company elected the following practical expedients and accounting policies: • to combine the lease and non-lease components related to the leases described above and apply Topic 842 to the combined component; • to utilize a portfolio approach for determining a discount rate for groups of leases which are similar in nature and have similar contract provisions; • to not recognize assets and liabilities related to leases with terms of 12 months or less and which otherwise qualify as short-term leases; and • to exclude variable lease payments from initial recognition of the lease liabilities and all lease options from the determination of minimum lease terms. The following table reflects the Company's operating, finance and capital lease arrangements: As of September 30, 2019 December 31, 2018 Operating lease ROU assets (a) $ 2,493 $ — Operating lease ROU accumulated amortization (a) $ (407 ) $ — Operating lease liabilities (b) $ 2,290 $ — Finance lease ROU assets (c) $ 1,925 $ — Finance lease ROU accumulated amortization (d) $ (195 ) $ — Finance lease liabilities (b) $ 1,310 $ — Capital lease assets (c) $ — $ 2,097 Capital lease accumulated amortization (d) $ — $ (104 ) Capital lease liabilities (b) $ — $ 1,789 (a) Recognized as a part of deferred costs and other assets, net on the condensed consolidated balance sheets. (b) Recognized as a part of other liabilities on the condensed consolidated balance sheets. (c) Recognized as a part of building and other improvements on the condensed consolidated balance sheets. (d) Recognized as a part of accumulated depreciation on the condensed consolidated balance sheets. The following table reflects the Company's total lease cost, weighted-average lease terms and weighted-average discount rates for the three and nine months ended September 30, 2019 : Three months ended September 30, 2019 Nine months ended September 30, 2019 Minimum operating lease payments (a) $ 166 $ 506 Variable operating lease payments (a) 30 92 Short-term operating lease payments (a) 84 228 ROU amortization of finance leases (b) 34 104 Interest expense of finance leases (c) 15 46 Total lease cost $ 329 $ 976 Weighted-average remaining lease term of operating leases 4.9 years Weighted-average remaining lease term of finance leases 2.9 years Weighted-average discount rate of operating leases 4.44 % Weighted-average discount rate of finance leases 3.50 % (a) Recognized as a part of general and administrative expenses on the condensed consolidated statements of operations and comprehensive income. (b) Recognized as a part of depreciation and amortization on the condensed consolidated statements of operations and comprehensive income. (c) Recognized as a part of interest expense, net, on the condensed consolidated statements of operations and comprehensive income. Future minimum lease obligations as of September 30, 2019 , were as follows: Future Minimum Lease Payments Operating Leases Finance Leases Remaining 2019 $ 125 $ 150 2020 587 493 2021 471 480 2022 443 279 2023 455 21 Thereafter 470 — Total expected minimum lease obligation 2,551 1,423 Less: Amount representing interest (a) (261 ) (113 ) Present value of net minimum lease payments $ 2,290 $ 1,310 (a) Interest includes the amount necessary to reduce the total expected minimum lease obligations to present value calculated at the Company's incremental borrowing rate. Future minimum lease obligations as of December 31, 2018 , were as follows: Future Minimum Lease Payments Operating Leases Capital Leases 2019 $ 717 $ 532 2020 611 532 2021 494 519 2022 466 317 2023 479 40 Thereafter 1,041 — Total expected minimum lease obligation $ 3,808 1,940 Less: Amount representing interest (a) (151 ) Present value of net minimum lease payments $ 1,789 (a) Interest includes the amount necessary to reduce the total expected minimum lease obligations to present value calculated at the Company's incremental borrowing rate.

Subsequent Events

Subsequent Events	9 Months Ended
	Sep. 30, 2019
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events In preparing its condensed consolidated financial statements, the Company has evaluated events and transactions occurring after September 30, 2019 , through the date the financial statements were issued for recognition and disclosure purposes. On October 11, 2019, the Company disposed of Northwest Marketplace, a 185,000 square foot power center located in the Houston-The Woodlands-Sugar Land, TX MSA, for a gross disposition price of $29,500 .

Basis of Presentation and Rec_2

Basis of Presentation and Recently Issued Accounting Pronouncements (Policies)	9 Months Ended
	Sep. 30, 2019
Accounting Policies [Abstract]
Recently Issued Accounting Pronouncements	Recently Issued Accounting Pronouncements Adopted Standard Description Date of adoption Effect on the financial statements or other significant matters ASU No. 2016-02, Leases, (Topic 842) and related updates ASU No. 2016-02 amends the existing guidance for lease accounting for both parties to a lease contract (i.e., lessees and lessors). The new standard requires a modified retrospective transition method for all leases existing at the date of initial application, with an option to use certain practical expedients available. January 2019 The Company adopted ASU No. 2016-02 and the related updates on a modified retrospective basis and applied the effective date method in which the elected practical expedients were applied consistently to all leases commenced before the ASU effective date of January 1, 2019. Recently Issued Accounting Pronouncements Not Yet Adopted Standard Description Date of adoption Effect on the financial statements or other significant matters ASU No. 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement ASU No. 2018-13 is intended to improve the effectiveness of the disclosures required by Topic 820, Fair Value Measurement by eliminating, amending, or adding certain disclosures. Certain amendments require a prospective transition method, while others require a retrospective transition method. The guidance is effective for all entities for fiscal years beginning after December 15, 2019, and early adoption is permitted. January 2020 The Company is continuing to evaluate this guidance, but expects the standard to only impact fair value measurement disclosures, and therefore should have no impact on the Company's condensed consolidated financial position, results of operations, or cash flows.

Basis of Presentation and Rec_3

Basis of Presentation and Recently Issued Accounting Pronouncements (Tables)	9 Months Ended
	Sep. 30, 2019
Accounting Policies [Abstract]
Schedule of Recently Issued Accounting Pronouncements Adopted/Not Yet Adopted	Recently Issued Accounting Pronouncements Adopted Standard Description Date of adoption Effect on the financial statements or other significant matters ASU No. 2016-02, Leases, (Topic 842) and related updates ASU No. 2016-02 amends the existing guidance for lease accounting for both parties to a lease contract (i.e., lessees and lessors). The new standard requires a modified retrospective transition method for all leases existing at the date of initial application, with an option to use certain practical expedients available. January 2019 The Company adopted ASU No. 2016-02 and the related updates on a modified retrospective basis and applied the effective date method in which the elected practical expedients were applied consistently to all leases commenced before the ASU effective date of January 1, 2019. Recently Issued Accounting Pronouncements Not Yet Adopted Standard Description Date of adoption Effect on the financial statements or other significant matters ASU No. 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement ASU No. 2018-13 is intended to improve the effectiveness of the disclosures required by Topic 820, Fair Value Measurement by eliminating, amending, or adding certain disclosures. Certain amendments require a prospective transition method, while others require a retrospective transition method. The guidance is effective for all entities for fiscal years beginning after December 15, 2019, and early adoption is permitted. January 2020 The Company is continuing to evaluate this guidance, but expects the standard to only impact fair value measurement disclosures, and therefore should have no impact on the Company's condensed consolidated financial position, results of operations, or cash flows.

Revenue Recognition (Tables)

Revenue Recognition (Tables)	9 Months Ended
	Sep. 30, 2019
Revenue from Contract with Customer [Abstract]
Minimum Lease Payments to be Received	As of September 30, 2019 , minimum lease payments to be received under long-term operating leases and short-term specialty leases, excluding additional percentage rent based on tenants' sales volume and tenant reimbursements of certain operating expenses, and assuming no exercise of renewal options or early termination rights, are as follows: Minimum Lease Payments Remaining 2019 $ 40,463 2020 154,921 2021 142,373 2022 121,061 2023 104,764 Thereafter 377,833 Total $ 941,415
Schedule of Minimum Lease Payments to be Received	As of December 31, 2018 , minimum lease payments to be received under long-term operating leases and short-term specialty leases, excluding additional percentage rent based on tenants' sales volume and tenant reimbursements of certain operating expenses, and assuming no exercise of renewal options or early termination rights, are as follows: Minimum Lease Payments 2019 $ 151,874 2020 139,290 2021 124,366 2022 103,204 2023 83,744 Thereafter 282,629 Total $ 885,107 Future minimum lease obligations as of December 31, 2018 , were as follows: Future Minimum Lease Payments Operating Leases Capital Leases 2019 $ 717 $ 532 2020 611 532 2021 494 519 2022 466 317 2023 479 40 Thereafter 1,041 — Total expected minimum lease obligation $ 3,808 1,940 Less: Amount representing interest (a) (151 ) Present value of net minimum lease payments $ 1,789 (a) Interest includes the amount necessary to reduce the total expected minimum lease obligations to present value calculated at the Company's incremental borrowing rate.
Disaggregation of Lease Income, Net	The following table reflects the disaggregation of lease income, net: Three months ended Nine months ended 2019 2018 2019 2018 Minimum lease payments $ 40,664 $ 42,990 $ 119,130 $ 131,173 Billed and unbilled tax and insurance recoveries 8,520 7,613 25,495 25,788 Billed and unbilled common area maintenance and other recoveries 5,627 6,000 16,752 18,602 Amortization of above and below-market leases and lease inducements, net 1,628 1,104 4,546 3,852 Short-term, termination fee and other lease income 505 1,458 2,654 2,489 Estimated credit losses (176 ) (399 ) (1,265 ) (765 ) Lease income, net $ 56,768 $ 58,766 $ 167,312 $ 181,139
Disaggregation of Other Fee Income	The following table reflects the disaggregation of other fee income: Three months ended Nine months ended 2019 2018 2019 2018 Property management fees $ 592 $ 631 $ 1,818 $ 1,996 Asset management fees 278 269 795 831 Leasing commissions and other fees 198 65 220 138 Other fee income $ 1,068 $ 965 $ 2,833 $ 2,965

Acquired Properties (Tables)

Acquired Properties (Tables)	9 Months Ended
	Sep. 30, 2019
Asset Acquisition [Abstract]
Schedule of acquisitions	The following table reflects the retail properties acquired, accounted for as asset acquisitions, during the nine months ended September 30, 2019 : Acquisition Date Property Metropolitan Statistical Area ("MSA")(a) Gross Square Feet January 31, 2019 Commons at University Place Raleigh-Cary, NC $ 23,250 92,000 March 20, 2019 Lakeside Winter Park Orlando-Kissimmee-Sanford, FL 63,500 76,000 April 30, 2019 Scofield Crossing (b) Austin-Round Rock, TX 3,000 64,000 May 7, 2019 Tomball Town Center Kroger Houston-The Woodlands-Sugar Land, TX 13,992 74,000 June 14, 2019 Sandy Plains Outparcel (c) Atlanta-Sandy Springs-Roswell, GA 2,900 6,000 June 28, 2019 Shoppes at Fairview Dallas-Fort Worth-Arlington, TX 36,000 67,500 July 11, 2019 Southern Palm Crossing (d) Miami-Fort Lauderdale-West Palm Beach, FL 96,750 346,200 September 9, 2019 Travilah Square Washington-Arlington-Alexandria, DC-VA-MD-WV 52,272 58,300 September 13, 2019 Eldorado Marketplace Dallas-Fort Worth-Arlington, TX 70,850 189,500 September 27, 2019 Garden Village Outparcel (c) Los Angeles-Long Beach-Anaheim, CA 3,250 3,900 $ 365,764 977,400 (a) As defined by the United States Office of Management and Budget. (b) The building and tenant improvements were acquired subject to an existing ground lease at the property. (c) The assets, liabilities and operations of the adjacent outparcels acquired are included as part of existing retail properties owned by the Company. (d) This acquisition was made through a consolidated VIE and was used to facilitate a reverse like-kind exchange under Section 1031 of the Internal Revenue Code of 1986, as amended ("Reverse 1031 Exchanges"). During the third quarter of 2019, the title of Southern Palm Crossing transferred to the Company through the completion of an exchange with the dispositions of West Creek and Boynton Commons. The following table reflects the retail properties acquired, accounted for as asset acquisitions, during the nine months ended September 30, 2018 : Acquisition Date Property MSA Gross Square Feet May 16, 2018 PGA Plaza (a) Miami-Fort Lauderdale-West Palm Beach, FL $ 88,000 120,000 May 30, 2018 Kennesaw Marketplace (a) Atlanta-Sandy Springs-Roswell, GA 64,300 117,000 September 13, 2018 Kennesaw Marketplace, Phase 3 (b) Atlanta-Sandy Springs-Roswell, GA 7,500 13,000 $ 159,800 250,000 (a) These acquisitions were made through two consolidated VIEs and were used to facilitate Reverse 1031 Exchanges. During the last quarter of 2018, the title of PGA Plaza and Kennesaw Marketplace transferred to the Company through the completion of an exchange and expiration of the 180-day waiting period, respectively. (b) The assets, liabilities and operations of Kennesaw Marketplace, Phase 3, acquired are included as part of an existing retail property owned by the Company.

Disposed Properties (Tables)

Disposed Properties (Tables)	9 Months Ended
	Sep. 30, 2019
Discontinued Operations and Disposal Groups [Abstract]
Schedule of Disposal Groups, Not Discontinued Operations, Disposal Activity	The following table reflects the retail properties disposed of during the nine months ended September 30, 2019 : Disposition Date Property Square Gross Gain (loss) on sale of investment properties, net Loss on extinguishment April 3, 2019 Brooks Corner 173,000 $ 26,300 $ 5,531 $ (809 ) May 31, 2019 Silverlake 101,000 6,650 131 — August 15, 2019 Promenade Fultondale 207,600 23,200 1,861 — August 21, 2019 Crossroads at Chesapeake Square 198,700 23,100 1,353 — September 10, 2019 West Creek 53,300 18,700 5,962 — September 13, 2019 Boynton Commons 210,300 50,000 18,405 — September 25, 2019 Quebec Square 207,600 42,250 (800 ) (2,092 ) 1,151,500 $ 190,200 $ 32,443 $ (2,901 ) In aggregate, the Company recognized net proceeds of $183,588 from the sales of these properties on the condensed consolidated statement of cash flows during the nine months ended September 30, 2019. The following table reflects the retail properties disposed of during the nine months ended September 30, 2018 : Disposition Date Property Square Gross Gain (loss) on sale and transfer of investment properties, net Gain (loss) on extinguishment January 9, 2018 Sherman Town Center I & II 485,000 $ 63,000 $ 12,382 $ — January 25, 2018 Grafton Commons 239,000 33,500 6,564 — March 8, 2018 Lakeport Commons 283,000 31,000 (666 ) — March 21, 2018 Stonecrest Marketplace (a) 265,000 — 1,777 10,752 March 31, 2018 Northwest Marketplace (b) — — 248 — April 17, 2018 Market at Morse/Hamilton 45,000 10,000 1,592 — May 24, 2018 Siegen Plaza 156,000 29,000 3,849 (54 ) June 20, 2018 Tomball Town Center 67,000 22,750 7,184 — June 26, 2018 Bellerive Plaza (c) 76,000 — (22 ) 1,694 June 28, 2018 Parkway Centre North 143,000 23,700 5,357 (1,695 ) September 14, 2018 Tulsa Hills 473,000 70,000 13,476 — 2,232,000 $ 282,950 $ 51,741 $ 10,697 (a) On March 21, 2018, the Company surrendered Stonecrest Marketplace, with a carrying value of $23,932 , to the lender in satisfaction of non-recourse debt with an initial maturity date of March 1, 2017, and recognized a gain on transfer of assets, net, of $1,777 . The Company is not aware of any material outstanding commitments and contingencies related to Stonecrest Marketplace. (b) The Company recognized a gain on sale of $248 related to the completion of a partial condemnation at this retail property. (c) On June 26, 2018, the Company surrendered Bellerive Plaza, with a carrying value of $4,771 , to the lender in satisfaction of non-recourse debt with an initial maturity date of June 1, 2017. The Company recognized a loss on transfer of assets, net, of $22 . The Company is not aware of any material outstanding commitments and contingencies related to Bellerive Plaza. (d) In addition to the gain or loss recognized as a result of the disposition of retail properties, the Company extinguished an additional loan on a retained retail property resulting in a loss on debt extinguishment of $4 .

Investment in Consolidated an_2

Investment in Consolidated and Unconsolidated Entities (Tables)	9 Months Ended
	Sep. 30, 2019
Investment in Partially Owned Entities [Abstract]
Schedule of Consolidated Variable Interest Entities	The following table presents the net assets of the VIE: December 31, 2018 Net investment properties $ 39,634 Other assets 4,457 Total assets 44,091 Liabilities (385 ) Net assets $ 43,706
Schedule of Net Equity Investment and Share of Net Income or Loss	The entities listed below are owned by the Company and other unaffiliated parties in joint ventures. Net income, distributions and capital transactions for these entities are allocated to the Company and its joint venture partners in accordance with the respective partnership agreements. Current Ownership % Carrying Value of Investment as of Entity Description September 30, 2019 December 31, 2018 IAGM Retail Fund I, LLC Multi-tenant retail shopping centers 55% $ 120,050 $ 126,195 Downtown Railyard Venture, LLC Land development —% — 30,049 Other unconsolidated entities Various real estate investments Various — (112 ) $ 120,050 $ 156,132
Schedule of Combined Financial Information of Investment in Unconsolidated Entities	The following tables present the combined condensed financial information for the Company's unconsolidated entities. As of September 30, 2019 December 31, 2018 Assets: Real estate assets, net of accumulated depreciation $ 427,652 $ 494,583 Other assets 64,705 103,565 Total assets $ 492,357 $ 598,148 Liabilities and equity: Mortgages payable, net 256,593 272,629 Other liabilities 19,068 42,569 Equity 216,696 282,950 Total liabilities and equity $ 492,357 $ 598,148 Company's share of equity $ 120,050 $ 185,814 Outside basis difference (a) — (29,682 ) Carrying value of investments in unconsolidated entities $ 120,050 $ 156,132 (a) The outside basis difference is principally related to other-than-temporary impairment recorded in 2018 on DRV. Three months ended September 30, Nine months ended September 30, 2019 2018 2019 2018 Revenues $ 13,277 $ 15,087 $ 40,024 $ 44,951 Expenses: Interest expense and loan cost amortization 2,630 3,434 8,418 10,240 Depreciation and amortization 4,687 5,124 15,626 16,401 Operating and general and administrative expenses 4,919 4,766 14,030 15,774 Provision for asset impairment — 1,405 1,443 3,673 Total expenses 12,236 14,729 39,517 46,088 Net income (loss) before sale of real estate 1,041 358 507 (1,137 ) Gain (loss) on sale of real estate — 13 (5,540 ) (3,892 ) Net income (loss) $ 1,041 $ 371 $ (5,033 ) $ (5,029 ) Company's share of net income (loss) $ 572 $ (93 ) $ (4,451 ) $ (3,069 ) Distributions from unconsolidated entities in excess of the investments' carrying value — 50 — 274 Outside basis adjustment for investee's sale of real estate — — 4,403 — Equity in earnings (losses) of unconsolidated entities $ 572 $ (43 ) $ (48 ) $ (2,795 )
Contractual Obligation, Fiscal Year Maturity Schedule	The following table shows the scheduled maturities of IAGM's mortgages payable as of September 30, 2019 , for the remainder of 2019, each of the next four years and thereafter. Maturities during the year ending December 31, 2019 2020 2021 2022 2023 Thereafter Total Mortgages payable $ — 14,872 23,150 — 180,125 40,680 $ 258,827

Debt (Tables)

Debt (Tables)	9 Months Ended
	Sep. 30, 2019
Notes and Loans Payable [Abstract]
Schedule of Outstanding Debt	As of September 30, 2019 and December 31, 2018 , the Company had the following mortgages payable outstanding: September 30, 2019 December 31, 2018 Mortgages payable (a) $ 176,502 $ 213,925 Premium, net of accumulated amortization 60 239 Discount, net of accumulated amortization (130 ) (158 ) Issuance costs, net of accumulated amortization (668 ) (1,079 ) Total mortgages payable, net $ 175,764 $ 212,927 (a) Mortgages payable had fixed interest rates ranging from 3.49% to 5.49% as of September 30, 2019 and December 31, 2018 , with a weighted-average interest rate of 4.34% and 4.33% as of September 30, 2019 and December 31, 2018 , respectively. As of September 30, 2019 and December 31, 2018 , the Company had the following borrowings outstanding under its unsecured term loans: September 30, 2019 December 31, 2018 Principal Balance Interest Rate Principal Balance Interest Rate Maturity Date $250.0 million 5 year - swapped to fixed rate $ 90,000 2.5510% (a) $ 90,000 2.5510% (a) December 21, 2023 $250.0 million 5 year - swapped to fixed rate 60,000 2.5525% (a) 60,000 2.5525% (a) December 21, 2023 $250.0 million 5 year - variable-rate 50,000 3.3003% (b) 50,000 3.5493% (c) December 21, 2023 $250.0 million 5 year - variable-rate 50,000 3.3003% (b) 26,000 3.6794% (d) December 21, 2023 $150.0 million 5.5 year - variable-rate 100,000 3.3003% (b) 100,000 3.5493% (c) June 21, 2024 $150.0 million 5.5 year - variable-rate 50,000 3.3003% (b) 26,000 3.6794% (d) June 21, 2024 Total unsecured term loans 400,000 352,000 Issuance costs, net of accumulated amortization (2,667 ) (3,145 ) Total unsecured term loans, net $ 397,333 $ 348,855 (a) The Company swapped $90,000 (notional amount of $90,000 ) and $60,000 (notional amount of $60,000 ) of variable-rate debt at an interest rate of 1-Month LIBOR plus 1.20% to a fixed rate of 2.5510% and 2.5525% , respectively. The swaps have an effective date of December 10, 2015 and a termination date of December 1, 2019 . As a result, all net deferred amounts in accumulated comprehensive income related to these swaps will be reclassified into earnings during 2019. (b) Interest rate reflects 1-Month LIBOR plus 1.20% effective September 3, 2019. (c) Interest rate reflects 1-Month LIBOR plus 1.20% effective December 3, 2018. (d) Interest rate reflects 1-Month LIBOR plus 1.20% effective December 21, 2018.
Schedule of Maturities for Outstanding Mortgage Indebtedness	The following table shows the scheduled maturities of the Company's mortgages payable as of September 30, 2019 for the remainder of 2019, each of the next four years and thereafter. Maturities during the year ending December 31, 2019 2020 2021 2022 2023 Thereafter Total Mortgages payable $ — $ 41,000 $ — $ 50,034 $ 41,138 $ 44,330 $ 176,502

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2019
Fair Value Disclosures [Abstract]
Quantitative Disclosure of The Fair Value For Each Major Category Of Assets And Liabilities	The following financial instruments are remeasured at fair value on a recurring basis: Fair Value Measurements as of September 30, 2019 December 31, 2018 Cash Flow Hedges: Level 1 Level 2 Level 3 Level 1 Level 2 Level 3 Derivative interest rate assets (a) $ — $ 161 $ — $ — $ 1,637 $ — Derivative interest rate liabilities (b) — (1,629 ) — — — — (a) Recognized as a part of deferred costs and other assets, net, on the condensed consolidated balance sheets. (b) Recognized as a part of other liabilities on the condensed consolidated balance sheets.
Assets Measured at Fair Value on Non-Recurring Basis	The following table summarizes activity for the Company's assets measured at fair value on a nonrecurring basis and the related impairment charges for the three and nine months ended September 30, 2019 and 2018: For the three months ended September 30, For the nine months ended September 30, 2019 2018 2019 2018 Level 3 Impairment Losses Level 3 Impairment Losses Level 3 Impairment Losses Level 3 Impairment Losses Investment properties $ 42,250 $ 2,359 $ 33,075 $ 2,713 $ 42,250 $ 2,359 $ 64,075 $ 3,510
Fair Value of Financial Instruments Presented at Carrying Values	The table below represents the estimated fair value of financial instruments presented at carrying values in the Company's condensed consolidated financial statements as of September 30, 2019 and December 31, 2018 : September 30, 2019 December 31, 2018 Carrying Value Estimated Fair Value Carrying Value Estimated Fair Value Mortgages payable $ 176,502 $ 180,671 $ 213,925 $ 212,572 Term loans $ 400,000 $ 400,004 $ 352,000 $ 352,006

Earnings per Share (Tables)

Earnings per Share (Tables)	9 Months Ended
	Sep. 30, 2019
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	The following table summarizes the calculation of the basic and diluted earnings per share: Three months ended Nine months ended 2019 2018 2019 2018 Numerator: Net income from continuing operations $ 24,926 $ 8,947 $ 35,205 $ 66,342 Earnings allocated to unvested restricted shares (50 ) — — (77 ) Net income from continuing operations attributable to common stockholders - basic and diluted $ 24,876 $ 8,947 $ 35,205 $ 66,265 Net loss from discontinued operations attributable to common stockholders - basic and diluted $ — $ — $ (25,500 ) $ — Denominator: Weighted-average number of common shares outstanding - basic 728,722,763 768,385,770 728,645,975 772,341,263 Effect of unvested restricted shares 733,959 921,089 575,251 630,524 Weighted-average number of common shares outstanding - diluted 729,456,722 769,306,859 729,221,226 772,971,787 Income per common share: Net income from continuing operations per share - basic and diluted $ 0.03 $ 0.01 $ 0.05 $ 0.09 Net loss from discontinued operations per share - basic and diluted — — (0.03 ) — Net income per share - basic and diluted $ 0.03 $ 0.01 $ 0.02 $ 0.09

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	9 Months Ended
	Sep. 30, 2019
Share-based Payment Arrangement [Abstract]
Schedule of Share-based Compensation, Restricted Stock Units Award Activity	The following table summarizes the Company's restricted stock unit ("RSU") activity for the nine months ended September 30, 2019 : Unvested Time-Based RSUs Unvested Performance-Based RSUs Weighted-Average Grant Date Price Per Share (a) Outstanding as of January 1, 2019 1,548,150 — $3.18 Shares granted 1,225,170 967,201 $3.14 Shares vested (227,707 ) — $3.14 Shares forfeited (202,441 ) (40,779 ) $3.17 Outstanding at September 30, 2019 2,343,172 926,422 $3.15 (a) On an annual basis, the Company engages an independent third-party valuation advisory firm to estimate the per share value of the Company's common stock.

Commitments and Contingencies (

Commitments and Contingencies (Tables)	9 Months Ended
	Sep. 30, 2019
Commitments and Contingencies Disclosure [Abstract]
Schedule of Operating, Finance, and Capital Lease Arrangements	The following table reflects the Company's operating, finance and capital lease arrangements: As of September 30, 2019 December 31, 2018 Operating lease ROU assets (a) $ 2,493 $ — Operating lease ROU accumulated amortization (a) $ (407 ) $ — Operating lease liabilities (b) $ 2,290 $ — Finance lease ROU assets (c) $ 1,925 $ — Finance lease ROU accumulated amortization (d) $ (195 ) $ — Finance lease liabilities (b) $ 1,310 $ — Capital lease assets (c) $ — $ 2,097 Capital lease accumulated amortization (d) $ — $ (104 ) Capital lease liabilities (b) $ — $ 1,789 (a) Recognized as a part of deferred costs and other assets, net on the condensed consolidated balance sheets. (b) Recognized as a part of other liabilities on the condensed consolidated balance sheets. (c) Recognized as a part of building and other improvements on the condensed consolidated balance sheets. (d) Recognized as a part of accumulated depreciation on the condensed consolidated balance sheets.
Schedule of Lease Cost, Weighted Average Lease Term and Weighted Average Discount Rate	The following table reflects the Company's total lease cost, weighted-average lease terms and weighted-average discount rates for the three and nine months ended September 30, 2019 : Three months ended September 30, 2019 Nine months ended September 30, 2019 Minimum operating lease payments (a) $ 166 $ 506 Variable operating lease payments (a) 30 92 Short-term operating lease payments (a) 84 228 ROU amortization of finance leases (b) 34 104 Interest expense of finance leases (c) 15 46 Total lease cost $ 329 $ 976 Weighted-average remaining lease term of operating leases 4.9 years Weighted-average remaining lease term of finance leases 2.9 years Weighted-average discount rate of operating leases 4.44 % Weighted-average discount rate of finance leases 3.50 % (a) Recognized as a part of general and administrative expenses on the condensed consolidated statements of operations and comprehensive income. (b) Recognized as a part of depreciation and amortization on the condensed consolidated statements of operations and comprehensive income. (c) Recognized as a part of interest expense, net, on the condensed consolidated statements of operations and comprehensive income.
Schedule of Future Minimum Operating Lease Obligations	Future minimum lease obligations as of September 30, 2019 , were as follows: Future Minimum Lease Payments Operating Leases Finance Leases Remaining 2019 $ 125 $ 150 2020 587 493 2021 471 480 2022 443 279 2023 455 21 Thereafter 470 — Total expected minimum lease obligation 2,551 1,423 Less: Amount representing interest (a) (261 ) (113 ) Present value of net minimum lease payments $ 2,290 $ 1,310 (a) Interest includes the amount necessary to reduce the total expected minimum lease obligations to present value calculated at the Company's incremental borrowing rate.
Schedule of Future Minimum Finance Lease Obligations	Future minimum lease obligations as of September 30, 2019 , were as follows: Future Minimum Lease Payments Operating Leases Finance Leases Remaining 2019 $ 125 $ 150 2020 587 493 2021 471 480 2022 443 279 2023 455 21 Thereafter 470 — Total expected minimum lease obligation 2,551 1,423 Less: Amount representing interest (a) (261 ) (113 ) Present value of net minimum lease payments $ 2,290 $ 1,310 (a) Interest includes the amount necessary to reduce the total expected minimum lease obligations to present value calculated at the Company's incremental borrowing rate.
Schedule of Minimum Lease Payments to be Received	As of December 31, 2018 , minimum lease payments to be received under long-term operating leases and short-term specialty leases, excluding additional percentage rent based on tenants' sales volume and tenant reimbursements of certain operating expenses, and assuming no exercise of renewal options or early termination rights, are as follows: Minimum Lease Payments 2019 $ 151,874 2020 139,290 2021 124,366 2022 103,204 2023 83,744 Thereafter 282,629 Total $ 885,107 Future minimum lease obligations as of December 31, 2018 , were as follows: Future Minimum Lease Payments Operating Leases Capital Leases 2019 $ 717 $ 532 2020 611 532 2021 494 519 2022 466 317 2023 479 40 Thereafter 1,041 — Total expected minimum lease obligation $ 3,808 1,940 Less: Amount representing interest (a) (151 ) Present value of net minimum lease payments $ 1,789 (a) Interest includes the amount necessary to reduce the total expected minimum lease obligations to present value calculated at the Company's incremental borrowing rate.
Schedule of Minimum Capital Lease Obligations Under Non-Cancelable Ground Leases	Future minimum lease obligations as of December 31, 2018 , were as follows: Future Minimum Lease Payments Operating Leases Capital Leases 2019 $ 717 $ 532 2020 611 532 2021 494 519 2022 466 317 2023 479 40 Thereafter 1,041 — Total expected minimum lease obligation $ 3,808 1,940 Less: Amount representing interest (a) (151 ) Present value of net minimum lease payments $ 1,789 (a) Interest includes the amount necessary to reduce the total expected minimum lease obligations to present value calculated at the Company's incremental borrowing rate.

Organization (Details)

Organization (Details) ft² in Millions	9 Months Ended
	Sep. 30, 2019ft²joint_ventureproperty	Sep. 30, 2018ft²joint_ventureproperty
Entity Information [Line Items]
Number of operating real estate joint ventures | joint_venture	1
Corporate Joint Venture
Entity Information [Line Items]
Number of retail properties | joint_venture		1
Area of real estate | ft²	2.6	3
Number of managed assets | property	11	14
Retail
Entity Information [Line Items]
Area of real estate | ft²	9.3	10.5
Retail
Entity Information [Line Items]
Number of retail properties | property	57	63

Revenue Recognition - Minimum L

Revenue Recognition - Minimum Lease Payments to be Received (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Minimum Lease Payments
Remaining 2019	$ 40,463
2020	154,921
2021	142,373
2022	121,061
2023	104,764
Thereafter	377,833
Total	$ 941,415
Minimum Lease Payments
2019		$ 151,874
2020		139,290
2021		124,366
2022		103,204
2023		83,744
Thereafter		282,629
Total		$ 885,107

Revenue Recognition - Disaggreg

Revenue Recognition - Disaggregation of Lease Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Disaggregation of Revenue [Line Items]
Minimum lease payments	$ 40,664	$ 42,990	$ 119,130	$ 131,173
Lease income, net	56,768	58,766	167,312	181,139
Estimated credit losses	(176)	(399)	(1,265)	(765)
Billed and unbilled tax and insurance recoveries
Disaggregation of Revenue [Line Items]
Lease income, net	8,520	7,613	25,495	25,788
Billed and unbilled common area maintenance and other recoveries
Disaggregation of Revenue [Line Items]
Lease income, net	5,627	6,000	16,752	18,602
Amortization of above and below-market leases and lease inducements, net
Disaggregation of Revenue [Line Items]
Lease income, net	1,628	1,104	4,546	3,852
Short-term, termination fee and other lease income
Disaggregation of Revenue [Line Items]
Lease income, net	$ 505	$ 1,458	$ 2,654	$ 2,489

Revenue Recognition - Narrative

Revenue Recognition - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Disaggregation of Revenue [Line Items]
Receivables from customers	$ 473		$ 473		$ 778
Affiliated entity
Disaggregation of Revenue [Line Items]
Joint venture partnership percentage	55.00%		55.00%
Other fee income
Disaggregation of Revenue [Line Items]
Income	$ 1,068	$ 965	$ 2,833	$ 2,965

Revenue Recognition - Disaggr_2

Revenue Recognition - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Property management fees
Disaggregation of Revenue [Line Items]
Other fee income	$ 592	$ 631	$ 1,818	$ 1,996
Asset management fees
Disaggregation of Revenue [Line Items]
Other fee income	278	269	795	831
Leasing commissions and other fees
Disaggregation of Revenue [Line Items]
Other fee income	198	65	220	138
Other fee income
Disaggregation of Revenue [Line Items]
Other fee income	$ 1,068	$ 965	$ 2,833	$ 2,965

Acquired Properties - Summary o

Acquired Properties - Summary of Retail Properties Acquired (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019USD ($)ft²	Sep. 30, 2018USD ($)ft²	Sep. 30, 2019USD ($)ft²	Sep. 30, 2018USD ($)ft²
Real Estate Properties [Line Items]
Capitalized acquisition costs	$ 1,416	$ 60	$ 2,334	$ 260
Retail
Real Estate Properties [Line Items]
Gross Acquisition Price			$ 365,764	$ 159,800
Square Feet | ft²	977,400	250,000	977,400	250,000
Commons at University Place | Retail
Real Estate Properties [Line Items]
Gross Acquisition Price			$ 23,250
Square Feet | ft²	92,000		92,000
Lakeside Winter Park and Lakeside Crossings | Retail
Real Estate Properties [Line Items]
Gross Acquisition Price			$ 63,500
Square Feet | ft²	76,000		76,000
Scofield Crossing | Retail
Real Estate Properties [Line Items]
Gross Acquisition Price			$ 3,000
Square Feet | ft²	64,000		64,000
Tomball Town Center Kroger | Retail
Real Estate Properties [Line Items]
Gross Acquisition Price			$ 13,992
Square Feet | ft²	74,000		74,000
Sandy Plains Outparcel | Retail
Real Estate Properties [Line Items]
Gross Acquisition Price			$ 2,900
Square Feet | ft²	6,000		6,000
Shoppes at Fairview | Retail
Real Estate Properties [Line Items]
Gross Acquisition Price			$ 36,000
Square Feet | ft²	67,500		67,500
Southern Palm Crossing | Retail
Real Estate Properties [Line Items]
Gross Acquisition Price			$ 96,750
Square Feet | ft²	346,200		346,200
Travilah Square | Retail
Real Estate Properties [Line Items]
Gross Acquisition Price			$ 52,272
Square Feet | ft²	58,300		58,300
Eldorado Marketplace | Retail
Real Estate Properties [Line Items]
Gross Acquisition Price			$ 70,850
Square Feet | ft²	189,500		189,500
Garden Village Outparcel | Retail
Real Estate Properties [Line Items]
Gross Acquisition Price			$ 3,250
Square Feet | ft²	3,900		3,900
PGA Plaza, Miami-Fort Lauderdale-West Palm Beach, FL | Retail
Real Estate Properties [Line Items]
Gross Acquisition Price				$ 88,000
Square Feet | ft²		120,000		120,000
Kennesaw Marketplace, Atlanta-Sandy Springs-Roswell, GA | Retail
Real Estate Properties [Line Items]
Gross Acquisition Price				$ 64,300
Square Feet | ft²		117,000		117,000
Kennesaw Marketplace, Phase 3 | Retail
Real Estate Properties [Line Items]
Gross Acquisition Price				$ 7,500
Square Feet | ft²		13,000		13,000

Disposed Properties - Schedule

Disposed Properties - Schedule of Disposal Groups (Details) $ in Thousands	Jun. 26, 2018USD ($)	Mar. 21, 2018USD ($)	Sep. 30, 2019USD ($)ft²	Sep. 30, 2018USD ($)ft²	Sep. 30, 2019USD ($)ft²	Sep. 30, 2018USD ($)ft²
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gross Disposition Price					$ 190,200	$ 282,950
Gain (loss) on extinguishment of debt, net (d)			$ (2,092)	$ (4)	$ (2,901)	$ 10,693
Retail | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Square Feet | ft²			1,151,500	2,232,000	1,151,500	2,232,000
Gross Disposition Price					$ 190,200	$ 282,950
Gain (loss) on sale and transfer of investment properties, net					32,443	51,741
Gain (loss) on extinguishment of debt, net (d)					$ (2,901)	$ 10,697
Brooks Corner | Retail | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Square Feet | ft²			173,000		173,000
Gross Disposition Price					$ 26,300
Gain (loss) on sale and transfer of investment properties, net					5,531
Gain (loss) on extinguishment of debt, net (d)					$ (809)
Silverlake | Retail | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Square Feet | ft²			101,000		101,000
Gross Disposition Price					$ 6,650
Gain (loss) on sale and transfer of investment properties, net					131
Gain (loss) on extinguishment of debt, net (d)					$ 0
Promenade Fultondale | Retail | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Square Feet | ft²			207,600		207,600
Gross Disposition Price					$ 23,200
Gain (loss) on sale and transfer of investment properties, net					1,861
Gain (loss) on extinguishment of debt, net (d)					$ 0
Crossroads at Chesapeake Square and Chesapeake Commons | Retail | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Square Feet | ft²			198,700		198,700
Gross Disposition Price					$ 23,100
Gain (loss) on sale and transfer of investment properties, net					1,353
Gain (loss) on extinguishment of debt, net (d)					$ 0
West Creek | Retail | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Square Feet | ft²			53,300		53,300
Gross Disposition Price					$ 18,700
Gain (loss) on sale and transfer of investment properties, net					5,962
Gain (loss) on extinguishment of debt, net (d)					$ 0
Boynton Commons | Retail | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Square Feet | ft²			210,300		210,300
Gross Disposition Price					$ 50,000
Gain (loss) on sale and transfer of investment properties, net					18,405
Gain (loss) on extinguishment of debt, net (d)					$ 0
Quebec Square | Retail | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Square Feet | ft²			207,600		207,600
Gross Disposition Price					$ 42,250
Gain (loss) on sale and transfer of investment properties, net					(800)
Gain (loss) on extinguishment of debt, net (d)					$ (2,092)
Sherman Town Center I & II | Retail | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Square Feet | ft²				485,000		485,000
Gross Disposition Price						$ 63,000
Gain (loss) on sale and transfer of investment properties, net						12,382
Gain (loss) on extinguishment of debt, net (d)						$ 0
Grafton Commons | Retail | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Square Feet | ft²				239,000		239,000
Gross Disposition Price						$ 33,500
Gain (loss) on sale and transfer of investment properties, net						6,564
Gain (loss) on extinguishment of debt, net (d)						$ 0
Lakeport Commons | Retail | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Square Feet | ft²				283,000		283,000
Gross Disposition Price						$ 31,000
Gain (loss) on sale and transfer of investment properties, net						(666)
Gain (loss) on extinguishment of debt, net (d)						$ 0
Stonecrest Marketplace | Retail | Disposal Group, Disposed of by Means Other than Sale, Not Discontinued Operations, Transfer
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Square Feet | ft²				265,000		265,000
Gross Disposition Price						$ 0
Gain (loss) on sale and transfer of investment properties, net		$ 1,777				1,777
Gain (loss) on extinguishment of debt, net (d)						$ 10,752
Carrying value, surrendered properties		$ 23,932
Northwest Marketplace | Retail | Disposal Group, Disposed of by Means Other than Sale, Not Discontinued Operations, Condemnation
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Square Feet | ft²				0		0
Gross Disposition Price						$ 0
Gain (loss) on sale and transfer of investment properties, net						248
Gain (loss) on extinguishment of debt, net (d)						$ 0
Market at Morse/Hamilton | Retail | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Square Feet | ft²				45,000		45,000
Gross Disposition Price						$ 10,000
Gain (loss) on sale and transfer of investment properties, net						1,592
Gain (loss) on extinguishment of debt, net (d)						$ 0
Siegen Plaza | Retail | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Square Feet | ft²				156,000		156,000
Gross Disposition Price						$ 29,000
Gain (loss) on sale and transfer of investment properties, net						3,849
Gain (loss) on extinguishment of debt, net (d)						$ (54)
Tomball Town Center | Retail | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Square Feet | ft²				67,000		67,000
Gross Disposition Price						$ 22,750
Gain (loss) on sale and transfer of investment properties, net						7,184
Gain (loss) on extinguishment of debt, net (d)						$ 0
Bellerive Plaza | Retail | Disposal Group, Disposed of by Means Other than Sale, Not Discontinued Operations, Transfer
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Square Feet | ft²				76,000		76,000
Gross Disposition Price						$ 0
Gain (loss) on sale and transfer of investment properties, net	$ 22					(22)
Gain (loss) on extinguishment of debt, net (d)						$ 1,694
Carrying value, surrendered properties	$ 4,771
Parkway Centre North | Retail | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Square Feet | ft²				143,000		143,000
Gross Disposition Price						$ 23,700
Gain (loss) on sale and transfer of investment properties, net						5,357
Gain (loss) on extinguishment of debt, net (d)						$ (1,695)
Tulsa Hills | Retail | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Square Feet | ft²				473,000		473,000
Gross Disposition Price						$ 70,000
Gain (loss) on sale and transfer of investment properties, net						13,476
Gain (loss) on extinguishment of debt, net (d)						0
Additional Loan | Retail
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (loss) on extinguishment of debt, net (d)						$ (4)

Disposed Properties - Narrative

Disposed Properties - Narrative (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Discontinued Operations and Disposal Groups [Abstract]
Proceeds from sale and transfer of investment properties, net	$ 183,588	$ 254,424

Investment in Consolidated an_3

Investment in Consolidated and Unconsolidated Entities - Schedule of Consolidated Variable interest Entities (Details) $ in Thousands	Dec. 31, 2018USD ($)
Variable Interest Entity [Line Items]
Total assets	$ 44,091
Liabilities	(385)
Net assets	43,706
Net investment properties
Variable Interest Entity [Line Items]
Total assets	39,634
Other assets
Variable Interest Entity [Line Items]
Total assets	$ 4,457

Investment in Consolidated an_4

Investment in Consolidated and Unconsolidated Entities - Net Equity Investment and Share of Net Income (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Schedule of net equity investment and share of net income or loss
Carrying value of investment	$ 120,050	$ 156,132
IAGM Retail Fund I, LLC
Schedule of net equity investment and share of net income or loss
Ownership %	55.00%
Carrying value of investment	$ 120,050	126,195
Downtown Railyard Venture, LLC
Schedule of net equity investment and share of net income or loss
Ownership %	0.00%
Carrying value of investment	$ 0	30,049
Other unconsolidated entities
Schedule of net equity investment and share of net income or loss
Carrying value of investment	$ 0	$ (112)

Investment in Consolidated an_5

Investment in Consolidated and Unconsolidated Entities - Narrative (Details) ft² in Thousands	Jun. 30, 2019USD ($)	Jun. 24, 2019USD ($)	Apr. 17, 2013USD ($)	Sep. 30, 2019USD ($)ft²VIE	Sep. 30, 2018USD ($)	Sep. 30, 2019USD ($)ft²VIE	Sep. 30, 2018USD ($)	Dec. 31, 2018USD ($)	Dec. 31, 2017	Jan. 01, 2018USD ($)	Dec. 31, 2013property
Variable Interest Entity [Line Items]
Number of variable interest entities | VIE				0		0
Proceeds from sale and transfer of investment properties, net						$ 183,588,000	$ 254,424,000
Provision for asset impairment				$ 0	$ 1,405,000	1,443,000	3,673,000
Proceeds from liquidation of unconsolidated entity						30,000,000	0
Retail | Rockwell Plaza
Variable Interest Entity [Line Items]
Provision for asset impairment						794,000
Loss on sale						307,000
Retail | Bryant Square
Variable Interest Entity [Line Items]
Provision for asset impairment					773,000		2,020,000
Loss on sale							2,148,000
IAGM Retail Fund I, LLC | Retail
Variable Interest Entity [Line Items]
Provision for asset impairment					$ 1,405,000		3,673,000
IAGM Retail Fund I, LLC | Retail | Rockwell Plaza
Variable Interest Entity [Line Items]
Proceeds from sale and transfer of investment properties, net						$ 20,500,000
Area of real estate | ft²				255		255
Provision for asset impairment						$ 1,443,000
Loss on sale						559,000
IAGM Retail Fund I, LLC | Retail | Bryant Square
Variable Interest Entity [Line Items]
Loss on sale							$ 3,905,000
Unconsolidated Entities | IAGM Retail Fund I, LLC
Variable Interest Entity [Line Items]
Number of retail properties contributed | property											14
Proceeds from sale and transfer of investment properties, net			$ 15,625,000
Equity investment basis adjustment, amortization period									30 years
Deferred gain on sale of property										$ 12,756,000
Unconsolidated Entities | Downtown Railyard Venture, LLC
Variable Interest Entity [Line Items]
Proceeds from liquidation of unconsolidated entity		$ 30,000,000
Other-than-temporary-impairment on unconsolidated entity								$ 29,933,000
Gain (loss) on transaction								$ 0
Mortgages
Variable Interest Entity [Line Items]
Extinguishment mortgage payable						$ 16,250,000
Extended Maturity | IAGM Retail Fund I, LLC
Variable Interest Entity [Line Items]
Extension period	1 year
Non Recourse, Mortgage Loan | IAGM Retail Fund I, LLC
Variable Interest Entity [Line Items]
Carrying value of loans payable	$ 14,872,000
Loans Payable | Non Recourse, Mortgage Loan | IAGM Retail Fund I, LLC
Variable Interest Entity [Line Items]
Debt instrument, face amount	$ 15,103,000

Investment in Consolidated an_6

Investment in Consolidated and Unconsolidated Entities - Schedule Investment in Unconsolidated Entities (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Assets
Real estate assets, net of accumulated depreciation	$ 427,652		$ 427,652		$ 494,583
Other assets	64,705		64,705		103,565
Total assets	492,357		492,357		598,148
Liabilities and equity:
Mortgages payable, net	256,593		256,593		272,629
Other liabilities	19,068		19,068		42,569
Equity	216,696		216,696		282,950
Total liabilities and equity	492,357		492,357		598,148
Company's share of equity	120,050		120,050		185,814
Outside basis difference	0		0		(29,682)
Carrying value of investments in unconsolidated entities	120,050		120,050		$ 156,132
Statements of Operations:
Revenues	13,277	$ 15,087	40,024	$ 44,951
Operating expenses
Interest expense and loan cost amortization	2,630	3,434	8,418	10,240
Depreciation and amortization	4,687	5,124	15,626	16,401
Operating and general and administrative expenses	4,919	4,766	14,030	15,774
Provision for asset impairment	0	1,405	1,443	3,673
Total expenses	12,236	14,729	39,517	46,088
Net income (loss) before sale of real estate	1,041	358	507	(1,137)
Gain (loss) on sale of real estate	0	13	(5,540)	(3,892)
Net income (loss)	1,041	371	(5,033)	(5,029)
Company's share of net income (loss)	572	(93)	(4,451)	(3,069)
Distributions from unconsolidated entities in excess of the investments' carrying value	0	50	0	274
Outside basis adjustment for investee's sale of real estate	0	0	4,403	0
Equity in earnings (losses) of unconsolidated entities	$ 572	$ (43)	$ (48)	$ (2,795)

Investment in Consolidated an_7

Investment in Consolidated and Unconsolidated Entities - Unconsolidated Entities (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Schedule of Debt Maturities of the Unconsolidated Entities
Mortgage debt	$ 256,593	$ 272,629
IAGM Retail Fund I, LLC
Schedule of Debt Maturities of the Unconsolidated Entities
2019	0
2020	14,872
2021	23,150
2022	0
2023	180,125
Thereafter	40,680
Mortgage debt	$ 258,827

Debt - Narrative (Details)

Debt - Narrative (Details)	Dec. 21, 2018USD ($)trancheoption	Sep. 30, 2019USD ($)swap	Sep. 30, 2019USD ($)swap	Dec. 31, 2018USD ($)
Debt Instrument [Line Items]
Debt, net		$ 573,097,000	$ 573,097,000	$ 561,782,000
Number of interest rate swaps | swap		4	4
Number of interest rate swaps to be terminated | swap		2
Mortgages Payable
Debt Instrument [Line Items]
Total mortgages payable, net		$ 175,764,000	$ 175,764,000	$ 212,927,000
Mortgages Payable | Minimum
Debt Instrument [Line Items]
Interest rate (percent)		3.49%	3.49%	3.49%
Mortgages Payable | Maximum
Debt Instrument [Line Items]
Interest rate (percent)		5.49%	5.49%	5.49%
Line of Credit | Unsecured Term Loan
Debt Instrument [Line Items]
Total mortgages payable, net		$ 397,333,000	$ 397,333,000	$ 348,855,000
Revolving Credit Facility | Revolving Credit Facility, Amended and Restated
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 350,000,000
Debt instrument, term	4 years
Number of extension options | option	2
Extension option on line of credit, period	6 months
Unused commitment fee			0.15%	0.15%
Line of credit facility, remaining borrowing capacity		0	$ 0	$ 0
Revolving Credit Facility | Revolving Credit Facility, Amended and Restated | Minimum
Debt Instrument [Line Items]
Commitment fee			0.15%
Revolving Credit Facility | Revolving Credit Facility, Amended and Restated | Maximum
Debt Instrument [Line Items]
Commitment fee			0.30%
Unsecured Debt | Unsecured Term Loan
Debt Instrument [Line Items]
Debt instrument, face amount	$ 400,000,000
Number of tranches | tranche	2
Unsecured Debt | Term Loan, Tranche One
Debt Instrument [Line Items]
Debt instrument, term	5 years
Debt instrument, face amount	$ 250,000,000
Unsecured Debt | Term Loan, Tranche Two
Debt Instrument [Line Items]
Debt instrument, term	5 years 6 months
Debt instrument, face amount	$ 150,000,000
Interest Rate Swap Three | Unsecured Debt | Term Loan, 5 year, Swapped to Fixed Rate, 2.68%
Debt Instrument [Line Items]
Notional amount		$ 100,000,000	$ 100,000,000
Interest rate (percent)		2.68%	2.68%
Interest Rate Swap Four | Unsecured Debt | Term Loan, 5 year, Swapped to Fixed Rate, 2.68%
Debt Instrument [Line Items]
Notional amount		$ 100,000,000	$ 100,000,000
Interest rate (percent)		2.68%	2.68%
Interest Rate Swap Five | Unsecured Debt | Term Loan, 5 year, Swapped to Fixed Rate, 2.69%
Debt Instrument [Line Items]
Notional amount		$ 50,000,000	$ 50,000,000
Interest rate (percent)		2.69%	2.69%
Interest Rate Swap Six | Unsecured Debt | Term Loan, 5 year, Swapped to Fixed Rate, 2.70%
Debt Instrument [Line Items]
Notional amount		$ 50,000,000	$ 50,000,000
Interest rate (percent)		2.70%	2.70%

Debt - Mortgages Payable (Detai

Debt - Mortgages Payable (Details) - Mortgages Payable - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Mortgages payable	$ 176,502	$ 213,925
Premium, net of accumulated amortization	60	239
Discount, net of accumulated amortization	(130)	(158)
Issuance costs, net of accumulated amortization	(668)	(1,079)
Total debt, net	$ 175,764	$ 212,927
Weighted average interest rate (percent)	4.34%	4.33%
Minimum
Debt Instrument [Line Items]
Fixed interest rate (percent)	3.49%	3.49%
Maximum
Debt Instrument [Line Items]
Fixed interest rate (percent)	5.49%	5.49%

Debt - Mortgage Maturities (Det

Debt - Mortgage Maturities (Details) - Mortgages Payable - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Schedule of maturities for outstanding mortgage indebtedness
2019	$ 0
2020	41,000
2021	0
2022	50,034
2023	41,138
Thereafter	44,330
Total	$ 176,502	$ 213,925

Debt - Line of Credit (Details)

Debt - Line of Credit (Details)	9 Months Ended
	Sep. 30, 2019USD ($)swap	Sep. 03, 2019	Dec. 31, 2018USD ($)	Dec. 21, 2018USD ($)	Dec. 03, 2018
Line of Credit Facility [Line Items]
Number of interest rate swaps | swap	4
$250.0 million 5 year - swapped to fixed rate | Unsecured Debt | Interest Rate Swap One
Line of Credit Facility [Line Items]
Debt instrument, face amount	$ 250,000,000
Debt instrument, term	5 years
Unsecured term loans	$ 90,000,000		$ 90,000,000
Interest rate (percent)	2.551%		2.551%
Notional amount	$ 90,000,000
$250.0 million 5 year - swapped to fixed rate | Unsecured Debt | Interest Rate Swap Two
Line of Credit Facility [Line Items]
Debt instrument, face amount	$ 250,000,000
Debt instrument, term	5 years
Unsecured term loans	$ 60,000,000		$ 60,000,000
Interest rate (percent)	2.5525%		2.5525%
Notional amount	$ 60,000,000
$250.0 million 5 year - variable-rate | Unsecured Debt
Line of Credit Facility [Line Items]
Debt instrument, face amount	$ 250,000,000
Debt instrument, term	5 years
Unsecured term loans	$ 50,000,000		$ 50,000,000
Interest rate (percent)	3.3003%		3.5493%
$250.0 million 5 year - variable-rate | Unsecured Debt | Interest Rate Swap One | One-month LIBOR
Line of Credit Facility [Line Items]
Variable rate		1.20%			1.20%
$250.0 million 5 year - variable-rate | Unsecured Debt
Line of Credit Facility [Line Items]
Debt instrument, face amount	$ 250,000,000
Debt instrument, term	5 years
Unsecured term loans	$ 50,000,000		$ 26,000,000
Interest rate (percent)	3.3003%		3.6794%
$250.0 million 5 year - variable-rate | Unsecured Debt | Interest Rate Swap One | One-month LIBOR
Line of Credit Facility [Line Items]
Variable rate				1.20%
$150.0 million 5.5 year - variable-rate | Unsecured Debt
Line of Credit Facility [Line Items]
Debt instrument, face amount	$ 150,000,000
Debt instrument, term	5 years 6 months
Unsecured term loans	$ 100,000,000		$ 100,000,000
Interest rate (percent)	3.3003%		3.5493%
$150.0 million 5.5 year - variable-rate | Unsecured Debt
Line of Credit Facility [Line Items]
Debt instrument, face amount	$ 150,000,000
Debt instrument, term	5 years 6 months
Unsecured term loans	$ 50,000,000		$ 26,000,000
Interest rate (percent)	3.3003%		3.6794%
Unsecured Term Loan | Unsecured Debt
Line of Credit Facility [Line Items]
Debt instrument, face amount				$ 400,000,000
Unsecured term loans	$ 400,000,000		$ 352,000,000
Issuance costs, net of accumulated amortization	$ (2,667,000)		(3,145,000)
Unsecured Term Loan | Unsecured Debt | Interest Rate Swap One | One-month LIBOR
Line of Credit Facility [Line Items]
Variable rate	1.20%
Unsecured Term Loan | Line of Credit
Line of Credit Facility [Line Items]
Total debt, net	$ 397,333,000		$ 348,855,000

Fair Value Measurements - Quant

Fair Value Measurements - Quantitative Disclosure of The Fair Value For Each Major Category Of Assets And Liabilities (Details) - Recurring - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Level 1
Schedule of Fair Value Assets and Liabilities Measured on Recurring Basis
Derivative interest rate assets	$ 0	$ 0
Derivative interest rate liabilities	0	0
Level 2
Schedule of Fair Value Assets and Liabilities Measured on Recurring Basis
Derivative interest rate assets	161	1,637
Derivative interest rate liabilities	(1,629)	0
Level 3
Schedule of Fair Value Assets and Liabilities Measured on Recurring Basis
Derivative interest rate assets	0	0
Derivative interest rate liabilities	$ 0	$ 0

Fair Value Measurements - Asset

Fair Value Measurements - Assets Measured at Fair Value on Non-Recurring Basis (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Impairment Losses
Investment properties	$ 2,359	$ 2,713	$ 2,359	$ 3,510
Nonrecurring
Impairment Losses
Investment properties	2,359	2,713	2,359	3,510
Nonrecurring | Level 3
Impairment Losses
Investment properties	$ 42,250	$ 33,075	$ 42,250	$ 64,075

Fair Value Measurements - Fair

Fair Value Measurements - Fair Value of Financial Instruments Presented at Carrying Values (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Carrying Value
Debt Instrument [Line Items]
Mortgages payable	$ 176,502	$ 213,925
Term loans	400,000	352,000
Estimated Fair Value
Debt Instrument [Line Items]
Mortgages payable	180,671	212,572
Term loans	$ 400,004	$ 352,006

Fair Value Measurements - Narra

Fair Value Measurements - Narrative (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019USD ($)	Sep. 30, 2018USD ($)property	Sep. 30, 2019USD ($)property	Sep. 30, 2018USD ($)property	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Number of properties impaired | property		2	1	3
Interest expense, net | $	$ 2,359	$ 2,713	$ 2,359	$ 3,510
Mortgages Payable | Weighted Average Effective Market Rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value measurement input	0.0339		0.0339		0.0438
Line of Credit | Discount Rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value measurement input	0.0257		0.0257		0.0363

Earnings per Share (Details)

Earnings per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Numerator:
Net income from continuing operations	$ 24,926	$ 8,947	$ 35,205	$ 66,342
Earnings allocated to unvested restricted shares	(50)	0	0	(77)
Net income from continuing operations attributable to common stockholders - basic and diluted	24,876	8,947	35,205	66,265
Net loss from discontinued operations attributable to common stockholders - basic and diluted	$ 0	$ 0	$ (25,500)	$ 0
Denominator:
Weighted-average number of common shares outstanding - basic	728,722,763	768,385,770	728,645,975	772,341,263
Effect of unvested restricted shares (in shares)	733,959	921,089	575,251	630,524
Weighted-average number of common shares outstanding - diluted	729,456,722	769,306,859	729,221,226	772,971,787
Income per common share:
Net income from continuing operations per share - basic and diluted (in dollars per share)	$ 0.03	$ 0.01	$ 0.05	$ 0.09
Net loss from discontinued operations per share - basic and diluted (in dollars per share)	0	0	(0.03)	0
Net income per common share, basic and diluted (in dollars per share)	$ 0.03	$ 0.01	$ 0.02	$ 0.09

Stock-Based Compensation - Rest

Stock-Based Compensation - Restricted Stock Units Award Activity (Details)	9 Months Ended
	Sep. 30, 2019$ / sharesshares
Unvested Time-Based RSUs
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Outstanding at beginning of year (in shares)	1,548,150
Shares granted (in shares)	1,225,170
Shares vested (in shares)	(227,707)
Shares forfeited (in shares)	(202,441)
Outstanding at end of year (in shares)	2,343,172
Weighted Average Grant Date Price Per Share
Weighted average price per share at beginning of year (in dollars per share) | $ / shares	$ 3.18
Weighted average price per share, shares granted (in dollars per share) | $ / shares	3.14
Weighted average price per share, shares vested (in dollars per share) | $ / shares	3.14
Weighted average price per share, shares forfeited (in dollars per share) | $ / shares	3.17
Weighted average price per share at end of year (in dollars per share) | $ / shares	$ 3.15
Unvested Performance-Based RSUs
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Outstanding at beginning of year (in shares)	0
Shares granted (in shares)	967,201
Shares vested (in shares)	0
Shares forfeited (in shares)	(40,779)
Outstanding at end of year (in shares)	926,422

Stock-Based Compensation - Narr

Stock-Based Compensation - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Share-based Payment Arrangement [Abstract]
Stock-based compensation expense not yet recognized	$ 7,161		$ 7,161
Stock-based compensation expense recognized	$ 1,289	$ 1,103	$ 3,454	$ 3,187

Commitments and Contingencies -

Commitments and Contingencies - Narrative (Details) - USD ($) $ in Thousands	Jun. 14, 2019	Sep. 30, 2019	Jan. 01, 2019
Loss Contingencies [Line Items]
Loss contingency accrual, period increase (decrease)		$ 25,500
Operating lease right-of-use asset		2,493
Lease liabilities		$ 2,290
Accounting Standards Update 2016-02
Loss Contingencies [Line Items]
Operating lease right-of-use asset			$ 2,890
Lease liabilities			$ 3,114
Settled Litigation | University House Communities Group, Inc
Loss Contingencies [Line Items]
Litigation settlement, amount awarded to other party	$ 30,000

Commitments and Contingencies_2

Commitments and Contingencies - Operating, Finance, and Capital Lease Arrangements (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Leases [Abstract]
Operating lease ROU assets	$ 2,493
Operating lease ROU accumulated amortization	(407)
Operating lease liabilities	2,290
Finance lease ROU assets	1,925
Finance lease ROU accumulated amortization	(195)
Finance lease liabilities	$ 1,310
Capital lease assets		$ 2,097
Capital lease accumulated amortization		(104)
Capital lease liabilities		$ 1,789

Commitments and Contingencies_3

Commitments and Contingencies - Lease Cost, Weighted Average Lease Term and Weighted Average Discount Rate (Details) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2019USD ($)	Sep. 30, 2019USD ($)
Leases [Abstract]
Minimum operating lease payments	$ 166	$ 506
Variable operating lease payments	30	92
Short-term operating lease payments	84	228
ROU amortization of finance leases	34	104
Interest expense of finance leases	15	46
Total lease cost	$ 329	$ 976
Weighted-average remaining lease term of operating leases	4 years 10 months 24 days	4 years 10 months 24 days
Weighted-average remaining lease term of finance leases	2 years 10 months 24 days	2 years 10 months 24 days
Weighted-average discount rate of operating leases	4.44%	4.44%
Weighted-average discount rate of finance leases	3.50%	3.50%

Commitments and Contingencies_4

Commitments and Contingencies - Future Minimum Lease Payments (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Operating Leases
Remaining 2019	$ 125
2020	587
2021	471
2022	443
2023	455
Thereafter	470
Total expected minimum lease obligation	2,551
Less: Amount representing interest	(261)
Operating lease liabilities	2,290
Finance Leases
Remaining 2019	150
2020	493
2021	480
2022	279
2023	21
Thereafter	0
Total expected minimum lease obligation	1,423
Less: Amount representing interest	(113)
Present value of net minimum lease payments	$ 1,310
Operating Leases
2019		$ 717
2020		611
2021		494
2022		466
2023		479
Thereafter		1,041
Total expected minimum lease obligation		3,808
Capital Leases
2019		532
2020		532
2021		519
2022		317
2023		40
Thereafter		0
Total expected minimum lease obligation		1,940
Less: Amount representing interest		(151)
Present value of net minimum lease payments		$ 1,789

Subsequent Events - (Details)

Subsequent Events - (Details) - Retail - Disposal Group, Disposed of by Sale, Not Discontinued Operations $ in Thousands	Oct. 11, 2019USD ($)ft²	Sep. 30, 2019ft²	Sep. 30, 2018ft²
Subsequent Event [Line Items]
Square Feet		1,151,500	2,232,000
Northwest Marketplace | Subsequent Event
Subsequent Event [Line Items]
Square Feet	185,000
Gross Disposition Price | $	$ 29,500

Uncategorized Items - ivtpsepte

Label	Element	Value
Business Combination, Contingent Consideration, Liability	us-gaap_BusinessCombinationContingentConsiderationLiability	$ 5,207,000
Business Combination, Contingent Consideration, Liability	us-gaap_BusinessCombinationContingentConsiderationLiability	732,000
Disposition, Accounts Payable, Acquired Lease Intangibles, and Other Liabilities	ivtp_DispositionAccountsPayableAcquiredLeaseIntangiblesandOtherLiabilities	(5,527,000)
Disposition, Accounts Payable, Acquired Lease Intangibles, and Other Liabilities	ivtp_DispositionAccountsPayableAcquiredLeaseIntangiblesandOtherLiabilities	(10,289,000)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	1,918,478,000
Recognition of Partially Deferred Gains on Property Sales	ivtp_RecognitionofPartiallyDeferredGainsonPropertySales	12,756,000
Recognition of Partially Deferred Gains on Property Sales	ivtp_RecognitionofPartiallyDeferredGainsonPropertySales	0
AOCI Attributable to Parent [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	1,670,000
Accumulated Distributions in Excess of Net Income [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	$ (3,765,877,000)
Common Stock [Member]
Shares, Issued	us-gaap_SharesIssued	774,293,197
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	$ 773,000
Additional Paid-in Capital [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	5,681,912,000
Accounting Standards Update 2017-05 [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	12,756,000	[1]
Accounting Standards Update 2017-05 [Member] | Accumulated Distributions in Excess of Net Income [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	12,756,000	[1]
Accounting Standards Update 2016-01 [Member] | AOCI Attributable to Parent [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	(275,000)
Accounting Standards Update 2016-01 [Member] | Accumulated Distributions in Excess of Net Income [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	$ 275,000
[1]	See Note 6. Investments in Consolidated and Unconsolidated Entities.