Landmark Infrastructure Partners (LMRK) 10-K 20 Feb 19 2018 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Feb. 15, 2019	Jun. 29, 2018
Document And Entity Information [Abstract]
Entity Registrant Name	Landmark Infrastructure Partners LP
Entity Central Index Key	1,615,346
Document Type	10-K
Document Period End Date	Dec. 31, 2018
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	true
Entity Ex Transition Period	true
Entity Shell Company	false
Limited Partners Units		25,338,432
Entity Public Float			$ 341
Document Fiscal Year Focus	2,018
Trading Symbol	LMRK
Document Fiscal Period Focus	FY

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Assets
Land	$ 128,302	$ 114,385
Real property interests	517,423	596,422
Construction in progress	29,556	7,574
Total land and real property interests	675,281	718,381
Accumulated amortization of real property interests	(39,069)	(37,817)
Land and net real property interests	636,212	680,564
Investments in receivables, net	18,348	20,782
Investment in unconsolidated joint venture	65,670
Cash and cash equivalents	4,108	9,188
Restricted cash	3,672	18,672
Rent receivables, net	4,292	4,141
Due from Landmark and affiliates	1,390	629
Deferred loan costs, net	5,552	3,589
Deferred rent receivable	5,251	4,252
Derivative assets	4,590	3,159
Other intangible assets, net	20,839	17,984
Assets held for sale (AHFS)	7,846
Other assets	8,843	5,039
Total assets	786,613	767,999
Liabilities and equity
Revolving credit facility	155,000	304,000
Secured Notes, net	223,685	187,249
Accounts payable and accrued liabilities	7,435	4,978
Other intangible liabilities, net	9,291	12,833
Liabilities associated with AHFS	397
Prepaid rent	5,418	4,581
Derivative liabilities	402
Total liabilities	401,628	513,641
Commitments and contingencies (Note 17)
Equity
Accumulated other comprehensive income (loss)	(2,806)	968
Total partner's equity	337,476	254,157
Noncontrolling interests	201	201
Total equity	337,677	254,358
Total liabilities, mezzanine equity and equity	786,613	767,999
Limited Partners | Preferred Units Series C
Mezzanine equity
Limited partners	47,308
Limited Partners | Preferred Units Series A
Equity
Limited partners	37,207	36,604
Limited Partners | Preferred Units Series B
Equity
Limited partners	58,936	58,936
Total equity	58,936	58,936
Limited Partners | Common Units
Equity
Limited partners	411,158	288,527
Total equity	411,158	288,527
Limited Partners | Subordinated Units
Equity
Limited partners		19,641
Total equity		19,641
General Partner
Equity
General Partner	(167,019)	(150,519)
Total equity	$ (167,019)	$ (150,519)

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - Limited Partners - shares	Dec. 31, 2018	Dec. 31, 2017
Preferred Units Series C
Temporary equity, preferred units
Preferred units issued (in shares)	2,000,000,000	0
Preferred units outstanding (in shares)	2,000,000,000	0
Preferred Units Series A
Preferred units
Preferred units issued (in shares)	1,593,149,000	1,568,402,000
Preferred units outstanding (in shares)	1,593,149,000	1,568,402,000
Preferred Units Series B
Preferred units
Preferred units issued (in shares)	2,463,015,000	2,463,015,000
Preferred units outstanding (in shares)	2,463,015,000	2,463,015,000
Common Units
Common and subordinated units
Units issued (in shares)	25,327,801,000	20,146,458,000
Units outstanding (in shares)	25,327,801,000	20,146,458,000
Subordinated Units
Common and subordinated units
Units issued (in shares)	0	3,135,109,000
Units outstanding (in shares)	0	3,135,109,000

CONSOLIDATED AND COMBINED STATE

CONSOLIDATED AND COMBINED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Revenue
Rental revenue	$ 64,765,000	$ 52,625,000	$ 41,171,000
Expenses
Management fees to affiliate			196,000
Property operating	1,147,000	394,000	107,000
General and administrative	4,731,000	5,286,000	3,755,000
Acquisition-related	3,287,000	1,287,000	2,906,000
Amortization	16,152,000	13,537,000	11,191,000
Impairments	1,559,000	848,000	1,275,000
Total expenses	26,876,000	21,352,000	19,430,000
Other income and expenses
Interest and other income	1,642,000	1,587,000	1,225,000
Interest expense	(24,273,000)	(18,399,000)	(13,923,000)
Loss on early extinguishment of debt	(157,000)		(1,703,000)
Realized loss on derivatives			(99,000)
Unrealized gain on derivatives	1,010,000	1,675,000	2,306,000
Equity income from unconsolidated joint venture	59,000
Gain (loss) on sale of real property interests	99,884,000	(5,000)	374,000
Foreign currency transaction loss	(6,000)
Total other income and expenses	78,159,000	(15,142,000)	(11,820,000)
Income before income tax expense (benefit)	116,048,000	16,131,000	9,921,000
Income tax expense (benefit)	227,000	(3,145,000)	0
Net income	115,821,000	19,276,000	9,921,000
Less: Pre-acquisition net income from Drop-down Assets			48,000
Less: Net income attributable to noncontrolling interest	27,000	19,000
Net income attributable to limited partners	115,794,000	19,257,000	9,873,000
Less: Distributions declared to preferred unitholders	(10,630,000)	(6,673,000)	(2,660,000)
Less: General partner's incentive distribution rights	(784,000)	(488,000)	(110,000)
Net income attributable to common and subordinated unitholders	$ 104,380,000	$ 12,096,000	$ 7,103,000
Net income per common and subordinated unit
Common units – basic	$ 4.25	$ 0.54	$ 0.46
Common units – diluted	3.97	0.53	0.41
Subordinated units – basic and diluted	$ (0.78)	$ 0.50	$ 0.23
Weighted average common and subordinated units outstanding
Common units – basic	24,626	19,701	13,986
Common units – diluted	26,967	22,836	17,121
Subordinated units – basic and diluted	387	3,135	3,135

CONSOLIDATED AND COMBINED STA_2

CONSOLIDATED AND COMBINED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 115,821	$ 19,276	$ 9,921
Other comprehensive income (loss):
Foreign currency translation adjustment	(3,774)	1,477	(517)
Other comprehensive income (loss)	(3,774)	1,477	(517)
Comprehensive income	112,047	20,753	9,404
Less: Comprehensive loss attributable to Drop-down Assets			(469)
Less: Comprehensive income attributable to noncontrolling interest	27	19
Comprehensive income attributable to limited partners	$ 112,020	$ 20,734	$ 9,873

CONSOLIDATED AND COMBINED STA_3

CONSOLIDATED AND COMBINED STATEMENTS OF EQUITY AND MEZZANINE EQUITY - USD ($) $ in Thousands	Total	General Partner	Limited PartnersCommon Units	Limited PartnersSubordinated Units	Limited PartnersPreferred Units Series A	Limited PartnersPreferred Units Series B	Limited PartnersPreferred Units Series C	Accumulated Other Comprehensive Income	Noncontrolling Interest
Balance at Dec. 31, 2015	$ 157,362	$ (47,633)	$ 179,045	$ 25,942				$ 8
Balance (in units) at Dec. 31, 2015			11,820,144	3,135,109
Increase (decrease) in partners' capital
Pre-acquisition net income from Drop-down Assets	48	48
Net investment of Drop-down Assets	(90,701)	(90,701)
Foreign currency translation adjustment	(517)							(517)
Issuance of Preferred Units, net	63,649				$ 19,393	$ 44,256
Issuance of Units, net (in units)			7,621,000		864,000	1,840,000
Issuance of Common Units, net	127,128		$ 127,128
Distributions	(25,195)	(32)	(18,349)	$ (4,154)	$ (1,250)	$ (1,410)
Capital contribution to fund general and administrative expense reimbursement	2,578	2,578
Unit-based compensation	105		$ 105
Unit-based compensation (in units)			9,840
Net income (loss)	9,873	110	$ 6,367	736	1,250	1,410
Balance at Dec. 31, 2016	244,330	(135,630)	$ 294,296	$ 22,524	$ 19,393	$ 44,256		(509)
Balance (in units) at Dec. 31, 2016			19,450,555	3,135,109	863,957	1,840,000
Increase (decrease) in partners' capital
Net investment of Drop-down Assets	(18,629)	(18,629)
Foreign currency translation adjustment	1,477							1,477
Issuance of Preferred Units, net	31,891				$ 17,211	$ 14,680
Issuance of Units, net (in units)			688,000		704,000	623,000
Issuance of Common Units, net	11,417		$ 11,417
Issuance of non-controlling interests, net	201								$ 201
Distributions	(39,226)	(264)	(27,834)	$ (4,436)	$ (2,434)	$ (4,239)			(19)
Capital contribution to fund general and administrative expense reimbursement	3,516	3,516
Unit-based compensation	105		$ 105
Unit-based compensation (in units)			6,798
Net income (loss)	19,276	488	$ 10,543	1,553	2,434	4,239			19
Balance at Dec. 31, 2017	254,358	(150,519)	$ 288,527	$ 19,641	$ 36,604	$ 58,936		968	201
Balance (in units) at Dec. 31, 2017			20,146,458	3,135,109	1,568,402	2,463,015
Increase (decrease) in partners' capital
Net investment of Drop-down Assets	(20,394)	(20,394)
Foreign currency translation adjustment	(3,774)							(3,774)
Issuance of Preferred Units, net	603				$ 603
Issuance of Units, net (in units)			2,043,000		25,000
Issuance of Common Units, net	35,361		$ 35,361
Conversion of subordinated units			$ 18,186	$ (18,186)
Conversion of subordinated units (in units)			3,135,109	(3,135,109)
Distributions	(45,951)	(1,086)	$ (35,669)	$ (1,152)	$ (3,166)	$ (4,851)			(27)
Capital contributions from Sponsor	3,802	3,802
Other deemed contributions	394	394
Unit-based compensation	70		$ 70
Unit-based compensation (in units)			3,826
Net income (loss)	113,208	784	$ 104,683	$ (303)	3,166	4,851			27
Balance at Dec. 31, 2018	$ 337,677	$ (167,019)	$ 411,158		$ 37,207	$ 58,936		$ (2,806)	$ 201
Balance (in units) at Dec. 31, 2018			25,327,801		1,593,149	2,463,015	2,000,000
Increase (Decrease) in temporary equity
Temporary equity, Issuance of Preferred Units, net							$ 47,308
Temporary equity, Distributions							(2,613)
Temporary equity, Net income (loss)							2,613
Temporary equity, Balance at Dec. 31, 2018							$ 47,308

CONSOLIDATED AND COMBINED STA_4

CONSOLIDATED AND COMBINED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Operating activities
Net income	$ 115,821	$ 19,276	$ 9,921
Adjustments to reconcile net income to net cash provided by operating activities:
Unit-based compensation	70	105	105
Unrealized (gain) loss on derivatives	(1,010)	(1,675)	(2,306)
Loss on early extinguishment of debt	157		1,703
Amortization expense	16,152	13,537	11,191
Amortization of above- and below- market lease	(1,226)	(1,226)	(1,338)
Amortization of deferred loan costs	3,435	2,203	1,701
Amortization of discount on secured notes	374	34	2
Receivables interest accretion	(3)	(7)	(36)
Impairments	1,559	848	1,275
(Gain) loss on sale of real property interests	(99,884)	5	(374)
Allowance for doubtful accounts	60	215	182
Equity income from unconsolidated joint venture	(59)
Foreign currency transaction loss	6
Changes in operating assets and liabilities:
Rent receivables, net	(238)	(1,980)	(1,217)
Accounts payable and accrued liabilities	(1,009)	(879)	911
Deferred rent receivables	235	(358)	(514)
Prepaid rent	853	590	(101)
Due from Landmark and affiliates	186	217	1,369
Other assets	(4,223)	(2,432)	(1,009)
Net cash provided by operating activities	31,256	28,473	21,465
Investing activities
Acquisition of land	(15,810)	(24,778)	(78,032)
Acquisition of real property interests and development activities	(86,817)	(112,315)	(70,958)
Proceeds from sales of real property interests	63,986	174	1,789
Acquisition of receivables		(4,389)	(10,172)
Repayments of receivables	1,108	1,180	905
Net cash used in investing activities	(37,533)	(140,128)	(156,468)
Financing activities
Proceeds from the issuance of Common Units, net	437	4,109	59,990
Proceeds from the issuance of Preferred Units, net	47,911	31,891	63,649
Proceeds from the issuance of non-controlling interests, net		201
Proceeds from revolving credit facility	120,000	133,500	230,800
Proceeds from the issuance of secured notes	169,128	78,155	116,583
Principal payments on revolving credit facility	(269,000)	(54,000)	(239,299)
Principal payments on secured notes	(6,408)	(1,747)	(583)
Principal payments on secured debt facilities			(76,235)
Deferred loan costs	(10,128)	(4,338)	(4,345)
Capital contribution to fund general and administrative expense reimbursement	2,560	3,569	2,678
Distributions to non-controlling interests	(27)	(19)
Consideration received from (paid to) General Partner associated with Drop-down Acquisitions	(20,394)	(18,629)	9,806
Net cash provided by (used in) financing activities	(13,652)	133,981	138,649
Effect of changes in foreign currency exchange rates on cash, cash equivalents and restricted cash	(151)	(28)	(68)
Net increase (decrease) in cash, cash equivalents and restricted cash	(20,080)	22,298	3,578
Cash, cash equivalents and restricted cash at beginning of the period	27,860	5,562	1,984
Cash, cash equivalents and restricted cash at end of the period	7,780	27,860	5,562
Limited Partners | Preferred Units
Financing activities
Distributions to limited partners	(10,218)	(6,177)	(1,860)
Limited Partners | Common and Subordinated Units
Financing activities
Distributions to limited partners	$ (37,513)	$ (32,534)	$ (22,535)

Organization

Organization	12 Months Ended
	Dec. 31, 2018
Limited Liability Company Or Limited Partnership Business Organization And Operations [Abstract]
Organization	1. Organization Landmark Infrastructure Partners LP (the “Partnership”) was formed on July 28, 2014 by Landmark Dividend LLC (“Landmark” or “Sponsor”) to own and manage a portfolio of real property interest and infrastructure assets that are leased to companies in the wireless communication, outdoor advertising and renewable power generation industries. In addition, the Partnership owns certain interests in receivables associated with similar assets. The Partnership is a master limited partnership organized in the State of Delaware and has been publicly traded since its initial public offering on November 19, 2014 (the “IPO”). On July 31, 2017, the Partnership completed changes to its organizational structure by transferring substantially all of its assets to a consolidated subsidiary, Landmark Infrastructure Inc., a Delaware corporation (“REIT Subsidiary”), which elected to be taxed as a REIT commencing with its taxable year ending December 31, 2017. References in this report to “Landmark Infrastructure Partners LP,” the “partnership,” “we,” “our,” “us,” or like terms, refer to Landmark Infrastructure Partners LP. Our operations are managed by the board of directors and executive officers of Landmark Infrastructure Partners GP LLC, our general partner (the “General Partner”). As of December 31, 2018, our Sponsor and affiliates own (a) our general partner; (b) 3,415,405 common units representing limited partnership interest in the Partnership (“Common Units”) and; (c) all of the incentive distribution rights (“IDRs”).

Basis of Presentation and Summa

Basis of Presentation and Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2018
Basis Of Presentation And Summary Of Significant Accounting Policies [Abstract]
Basis of Presentation and Summary of Significant Accounting Policies	2. Basis of Presentation and Summary of Significant Accounting Policies Basis of Presentation and Principles of Consolidated and Combined Financial Statements During the years ended December 31, 2018, 2017 and 2016, the Partnership completed one, four and five drop-down acquisitions of 127, 155 and 539 tenant sites and related real property interests, respectively, and zero, two and 14 investment in receivables, respectively, from the Sponsor and affiliates in exchange for total consideration of $59.9 million, $118.3 million and $205.7 million, respectively (the “Drop-down Acquisitions” or “Drop-down Assets”). In accordance with the adoption of ASU No. 2017-01, drop-down acquisitions no longer meet the definition of a business and do not require to be retroactively adjusted. As such, drop-down acquisitions from the Sponsor and affiliates subsequent to March 31, 2017 are accounted for prospectively as transfers of net assets in the period in which the transfer occurs at the net carrying value. Any differences between the cash consideration and the net carrying value of the transfer of net assets is allocated to the General Partner. On an ongoing basis, we evaluate each legal entity that is not wholly owned by us in accordance with the consolidation guidance. The accompanying consolidated financial statements include the accounts of the Partnership, its wholly-owned subsidiaries and those entities in which it has a controlling interest. Investments in entities that the Partnership does not control are accounted for using the equity or cost method, depending upon the Partnership’s ability to exercise significant influence over operating and financial policies. Our results of operations, cash flows, assets and liabilities consist of the consolidated Landmark Infrastructure Partners LP activities and balances with retroactive adjustments of the combined results of operations, cash flows, assets and liabilities of the 2016 Drop-down Assets as if the 2016 Drop-down Acquisitions occurred on the earliest date during which the 2016 Drop-down Assets were under common control. See Note 3, Acquisitions The consolidated and combined financial statements were prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”). All intercompany transactions and account balances have been eliminated. Management believes that the assumptions and estimates used in the preparation of the underlying consolidated and combined financial statements are reasonable. However, the consolidated and combined financial statements herein do not necessarily reflect what the Partnership’s financial position, results of operations, comprehensive income or cash flows would have been if the Partnership had been a stand-alone entity during the periods presented. As a result, historical financial information is not necessarily indicative of the Partnership’s future results of operations, comprehensive income, financial position or cash flows. All references to tenant sites are unaudited. Use of Estimates The preparation of the consolidated and combined financial statements, in conformity with GAAP, requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated and combined financial statements and reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates. Purchase Accounting for Acquisitions The Partnership applies the business combination or asset acquisition method to all acquired investments of real property interests for transactions that meet the definition of a business combination or asset acquisition based on the revised framework for determining whether an integrated set of assets meets the definition of a business. The purchase consideration for the real property interests is allocated to the acquired tangible assets, such as land, and the identified intangible assets and liabilities, consisting of the value of perpetual and limited life easements, above-market and below-market leases and in-place leases, based in each case on their fair values. The fair value of the assets acquired and liabilities assumed is typically determined by using the discounted cash flow valuation method using discount rates ranging between 6% and 20%. When determining the fair value of intangible assets acquired, the Partnership estimates the applicable discount rate and the timing and amount of future cash flows. For acquisitions of a business, the determination of the final purchase price allocation and the acquisition-date fair value of identifiable assets acquired and liabilities assumed may extend over more than one period, but no later than 12 months from the acquisition date and result in adjustments to the preliminary estimates recognized in the prior period financial statements. Transaction costs related to the acquisition of a business, including investments in real property interests, are expensed as incurred. Transaction costs related to asset acquisitions are capitalized. Factors considered in estimating the fair value of tangible and intangible assets acquired include information obtained about each asset as a result of Landmark’s pre-acquisition due diligence and its marketing and leasing activities. In order to calculate the estimated in-place lease value, we employed the income approach in accordance with ASC 805 by multiplying the anticipated market absorption period by the market rent at the time of acquisition for each in-place lease agreement. Based on our experience in the industry, we have determined a range of lease execution timelines to be between one and twelve months. For the in-place lease valuation, we consider a lease-up period of four to eight months to be representative of the market. We estimated the fair value of real property interests using the income approach. The discount rates used ranged from 6% to 20%. The value of tenant relationships has not been separated from in-place tenant lease value for the real estate acquired as such value and its consequence to amortization expense is materially consistent with the in-place tenant lease value for these particular acquisitions. Should future acquisitions of real property interests result in allocating material amounts to the value of tenant relationships, an amount would be separately allocated and amortized over the estimated life of the relationship. The value of in-place leases and customer relationship is amortized to expense over the estimated period the tenant is expected to be leasing the site under the existing terms which typically range from 2 to 20 years. If a tenant lease were to be terminated prior to its stated expiration, all unamortized amounts relating to that lease would be impaired. The discount rate associated with each asset varies based on the location of an asset (including demographics and zoning restrictions), and other asset specific characteristics. Market rent for each asset is determined based on location of each asset, asset type, zoning restrictions, ground space necessary for the tenant’s equipment, remaining site capacity, visibility (specifically for billboards), and nearby sites. In allocating the purchase consideration of the identified intangible assets and liabilities of an acquired asset, above-market, below-market and in-place lease values are calculated based on the present value (using a discount rate that reflects the risks associated with the leases acquired) of the difference between (i) the contractual amounts to be paid pursuant to the in-place leases and (ii) management’s estimate of fair market lease rates for the corresponding in-place leases measured over the estimated period the tenant is expected to be leasing the site under the above or below-market terms. The capitalized above-market and below-market lease values are amortized as a decrease or increase, respectively, to rental income over the estimated period the tenant is expected to be leasing the site. All tenant leases obtained by the Partnership through its acquisition of real property interests are generally cancellable, upon 30 to 180 days’ notice by the tenants, with no significant penalty. With respect to below-market leases, consideration is given to any below-market renewal periods. However, for wireless communication assets, we estimated the above/below-market lease value over an analysis period of the earlier of the lease expiration or 10 years based on estimated useful life of the underlying equipment and assets. For outdoor advertising assets, we estimated the above- or below-market lease value over an analysis period of the earlier of the lease expiration or 20 years, based on a longer estimated useful life of 20 years for billboards. Real Property Interests Real property interests consist primarily of land, easements and lease assignments underlying wireless communication, outdoor advertising and renewable power generation infrastructure. The real property interests are typically held as ownership of land or easements to use land, or roof tops, both of which allow us to use the asset for a specific purpose. Real property interests, excluding land, are intangibles that are recorded at cost. Amortization is computed using the straight-line method over the estimated useful lives of the real property interests, which is estimated as the shorter of the revenue generating period of the asset or the term of the real estate rights which range from 12 to 99 years. Real property interests with a perpetual term are not amortized but evaluated periodically for impairment. The Partnership assesses whether there has been an impairment in the value of long-lived assets whenever events or changes in circumstances indicate the carrying amount of an asset may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount to the future estimated net cash flows, undiscounted and without interest, expected to be generated by the asset. If such assets are considered to be impaired, the impairment to be recognized is measured by the amount by which the carrying amount of the assets exceeds the estimated fair value of the assets based upon what a market participant would be willing to pay for the real estate interest. The estimated fair value of the asset group identified for step two testing is based on either Level 3 inputs utilizing the income approach with a market discount rate and estimated cash flows, or Level 2 inputs based upon the sales comparison approach to a similar asset. Assets to be disposed of are reported at the lower of the carrying amount or fair value, less costs to sell utilizing the Level 3 and Level 2 inputs discussed below. Fair Value of Financial Instruments The standard establishes a hierarchy for inputs used in measuring fair value that maximizes the use of observable inputs and minimizes the use of unobservable inputs by requiring that the most observable input be used when available. Observable inputs are inputs that the market participants would use in pricing an asset or liability developed based on market data obtained from sources independent of the Partnership. Unobservable inputs are inputs that reflect the Partnership’s assumptions about what market participants would use in pricing the asset or liability developed based on the best information available in the circumstances. The hierarchy is measured in three levels based on the reliability of inputs: Level 1 – unadjusted quoted prices in active markets that are accessible at the measurement date for identical assets or liabilities. Level 2 – quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, and model-derived valuations in which significant inputs and significant value drivers are observable in active markets; and, Level 3 – prices or valuations derived from other valuation methodologies where little or no market data is available that requires inputs that are both significant to the fair value measurement and unobservable, including pricing models, discounted cash flow models and similar techniques. Cash and Cash Equivalents All highly liquid investments with a maturity of three months or less when purchased are considered to be cash and cash equivalents. The Partnership monitors the cash balances in its operating accounts and adjusts the cash balances as appropriate; however, these cash balances could be impacted if the underlying financial institutions fail or are subject to other adverse conditions in the financial markets. To date, the Partnership has experienced no loss or lack of access to cash in the operating accounts. Restricted Cash Restricted cash primarily consists of amounts pledged as collateral to secure obligations. As of December 31, 2018 and 2017, the amount of restricted cash was $3.7 million and $18.7 million. See Note 9, Debt Accounting for Derivative Financial Instruments and Hedging Activities The Partnership utilize interest rate swap contracts to manage interest costs and risks associated with changing interest rates. These derivative financial instruments are carried at fair value on the consolidated and combined balance sheets, with the change in such fair value being recorded through earnings as an unrealized gain or loss in the consolidated and combined statements of operations. Capitalized development costs We capitalize project costs, including pre-construction costs, interest, and other costs directly related and essential to the development, pre-construction, or construction of a project. Capitalization of development, pre-construction, and construction costs is required while activities are ongoing to prepare an asset for its intended use. Fluctuations in our development, pre-construction, and construction activities could result in significant changes to total expenses and net income. Costs incurred after a project is substantially complete and ready for its intended use are expensed as incurred. Should development, pre-construction, or construction activity cease, interest and certain other costs would no longer be eligible for capitalization and would be expensed as incurred. Expenditures for repairs and maintenance are expensed as incurred. Investments in Receivables, Net The Partnership acquired streams of future cash flows associated with real property interests and certain lease arrangements that meet the definition of a financial asset within the wireless communication and renewable power generation industries. For certain investments in receivables, the Partnership has no significant rights or obligations associated with the cash flows other than in certain arrangements, to pass a portion of the cash flows received to the owner of the respective lease. Additionally, certain lease arrangements of real property interests meet the definition of a financial asset and are included in investments in receivables in our financial statements. Receivables are classified as held-for-investment based on management’s intent and ability to hold the receivables for the foreseeable future or to maturity. Receivables held-for-investment are carried at amortized cost and are reduced by a valuation allowance for estimated credit losses as necessary. Interest on receivables is accreted to income over the life of the receivables using the interest method. The interest method is applied on an individual receivable basis when collectability of the future payments, when due in accordance with the contractual terms of the arrangement, is reasonably assured. Receivables are transferred from held-for-investment to held-for-sale when management no longer intends to hold the receivables for the foreseeable future. Receivables held-for-sale are recorded at the lower of cost or fair value. Receivables are placed on non-accrual status when management determines that the collectability of contractual amounts is not reasonably assured. While on non-accrual status, receivables are either accounted for on a cash basis, in which income is recognized only upon receipt of cash, or on a cost-recovery basis, where cash receipts reduce the carrying value of the receivable, based on management’s expectation of future collectability. Allowances are established for receivables based upon an estimate of probable losses on an individual receivable by receivable basis if they are determined to be impaired. Receivables are impaired when it is deemed probable that the Partnership will be unable to collect all amounts when due in accordance with the contractual terms of the loan. An allowance is based upon the Partnership’s assessment of the borrower’s overall financial condition, economic resources, payment record, the prospects for support from any financially responsible guarantors and, if appropriate, the net realizable value of any collateral. These estimates consider all available evidence including the expected future cash flows discounted at the receivable’s effective interest rate, fair value of collateral, general economic conditions and trends, historical and industry loss experience and other relevant factors, as appropriate. On a regular basis, the Partnership assesses investments in receivables for impairment. Internally generated cash flow projections are used to determine if the receivables are expected to be repaid in accordance with the terms of the related agreements. If it is probable that a receivable will not be repaid in accordance with the related agreement, the General Partner considers the receivable impaired. To measure impairment, the General Partner calculates the present value of the expected future cash flows discounted at the original effective interest rate. If the present value is less than the carrying value of the receivable, a specific impairment reserve is recorded for the difference. For the year ended December 31, 2018, the Partnership impaired 16 of its investments in receivables and recognized impairment charges totaling $0.8 million. The investments in receivables were impaired to net realizable value. There was no impairment of investments in receivables during the years ended December 31, 2017 and 2016. Investment in Unconsolidated Joint Venture The Partnership accounts for its investment in an unconsolidated joint venture using the equity method of accounting. Under the equity method, the investment is initially recorded at fair value and subsequently adjusted for distributions and the Partnership’s proportionate share of equity in the joint venture’s income (loss). The Partnership recognizes its proportionate share of the ongoing income or loss of the unconsolidated joint venture as equity income (loss) from unconsolidated joint venture on the consolidated statements of operations. On a quarterly basis, the Partnership evaluates its investment in an unconsolidated joint venture for other-than-temporary impairments. Deferred Loan Costs Costs incurred associated with the revolving credit facility are capitalized as deferred loan costs and are included in deferred loan costs, net in the consolidated balance sheets in accordance with ASU 2015-15, Interest – Imputation of Interest (Subtopic 835-30): Presentation and Subsequent Measurement of Debt Issuance Costs Associated with Line-of-Credit Arrangements. As a result of the adoption of ASU 2015-03, Simplifying the Presentation of Debt Issuance Costs, costs incurred in obtaining the secured debt facilities are deducted from the carrying amount of the debt liability. The deferred loan costs are amortized to interest expense over the life of the related loan. When facilities are amended and restated that result in an of extinguishment of debt, any unamortized deferred loan costs, as well as charges incurred for the termination, are recorded to interest expense in the period of the amendment and restatement. Revenue Recognition The Partnership recognizes rental income under operating leases, including rental abatements, lease incentives and contractual fixed increases, if any, from tenants under lease arrangements with minimum fixed and determinable increases on a straight-line basis over the non-cancellable term of the related leases when collectability is reasonably assured. The excess of rents recognized over amounts contractually due pursuant to the underlying leases are recorded as deferred rent assets. The excess of rent payments collected over amounts recognized contractually due pursuant to the underlying lease are recorded as prepaid rents. For the years ended December 31, 2018, 2017, and 2016, leases obtained by the Partnership through its acquisition and ownership of real property interests in the wireless communication industry and the outdoor advertising industry were generally cancelable upon 30 - 180 days’ notice by the tenants with no significant penalty. The Partnership evaluates whether the lease arrangements economically compel the tenant to not cancel the lease in determining the term of the lease by considering various factors such as cancellation rights, availability of alternative sites, and historical cancellation rates. For cancellable leases where the tenant is not economically compelled to continue the lease, the term of the lease is considered to be the non-cancellable period with rental abatements and contractual fixed rate increases recorded in the period the amounts become due and payable. • Wireless Communication – As a result of various factors, including the cancellation rights, ability to find alternative sites, credit risk, and historical cancellation and lease amendment rates, the lease term is generally considered to be the non-cancellable term of the lease of 30 to 180 days. For these leases, rental abatements and contractual fixed increases are recorded in the period the amounts become due and payable. • Outdoor Advertising and Renewable Power Generation – The lease term is generally considered to be the non-cancellable term of the remaining portion of the existing term of the lease. The capitalized above-market and below-market lease values are amortized as a decrease or increase, respectively, to rental income over the estimated period the tenant is expected to be leasing the site. Certain leases provide for the greater of a minimum rent or a percentage of the revenue generated by the tenant (“Contingent Rent”). Contingent rent is recognized when measurable and all possible contingencies have been eliminated. During the years ended December 31, 2018, 2017, and 2016, the Partnership recognized $1.2 million, $1.0 million and $0.6 million of Contingent Rent, respectively. Rents Receivable, net Rents receivables consists of tenant receivables arising in the normal course of business. Tenant receivables are uncollateralized customer obligations requiring payment within various time frames not to exceed one year from the invoice date. Tenant receivables are recorded and carried at the amount billable per the applicable lease agreement, less any allowances for doubtful accounts. The amounts due from tenants are periodically reviewed and an allowance for doubtful accounts is maintained for estimated losses resulting from the inability of tenants to make required payments under lease agreements. Judgment is exercised in establishing these allowances with the payment history and the current credit status of tenants considered in developing these estimates. At December 31, 2018 and 2017, the allowance for doubtful accounts was $0.2 million and $0.3 million, respectively. Income Taxes The Partnership is generally not subject to federal, state or local income taxes, except for our subsidiary Landmark Infrastructure Asset OpCo LLC (“Asset OpCo”) and our foreign subsidiaries. Asset OpCo conducts certain activities that may not generate qualifying income and will be treated as a corporation for U.S. federal income tax purposes. Each limited partner is responsible for the tax liability, if any, related to its proportionate share of the Partnerships’ taxable income or loss. Asset OpCo and certain foreign wholly owned subsidiaries of the Partnership conduct certain activities in international locations that generate taxable income and will be treated as taxable entities. Additionally, our consolidated REIT subsidiary, Landmark Infrastructure Inc., a Delaware corporation, files as a corporation for U.S. federal income tax purposes. The REIT Subsidiary has elected to be treated as a REIT and we believe that it has operated in a manner that has allowed the REIT Subsidiary to qualify as a REIT for federal income tax purposes, and the REIT Subsidiary intends to continue operating in such manner. If the REIT Subsidiary fails to qualify as a REIT in any taxable year, and is unable to avail itself of certain savings provisions, all of its taxable income would be subject to federal income tax at regular corporate rates. The Partnership follows the requirements of ASC Topic 740, Income Taxes On December 22, 2017, the Tax Cuts and Jobs Act (the “Tax Act”) was signed into law, which made significant changes to U.S. federal income tax laws applicable to businesses and their owners, including REITs and corporations. Concurrently, the SEC issued Staff Accounting Bulletin (“SAB 118”), which provides guidance on accounting for tax effects of the Tax Act. In accordance with SAB 118, a company must reflect the income tax effects of those aspects of the Tax Act for which the accounting under ASC 740 is complete. As of December 31, 2018, the Partnership has completed its assessment of the impact of the Tax Act, including qualification as a real estate business. Our tax expense is reflected in the consolidated financial statements as of December 31, 2017 and there were no tax law adjustments during the year ended December 31, 2018. Foreign Currency Translation Assets and liabilities denominated in foreign currencies that are translated into U.S. dollars use exchange rates in effect at the end of the period, and revenues and expenses denominated in foreign currencies that are translated into U.S. dollars use average rates of exchange in effect during the related period. Gains and losses resulting from translation adjustments are included in accumulated other comprehensive income (loss). Foreign Currency Transactions Risk Management The Partnership is subject to risks incidental to the ownership and investment in real property interests. These risks and uncertainties include the competitive environment in which the Partnership operates – local, regional, and national economic conditions, including consumer confidence, employment rates, and the availability of capital; uncertainties and fluctuations in capital and securities markets; the cyclical and competitive nature of the real estate industry; changes in tax laws and their interpretation; legal proceedings; effect of restrictive covenants in the loan agreements; and the effects of governmental regulation. In the normal course of business, the Partnership encounters economic risk, including interest rate risk, currency risk, credit risk, and market risk. Interest rate risk is the result of movements in the underlying variable component of financing rates. Credit risk is the risk of default that results from an underlying tenant/borrower’s inability or unwillingness to make contractually required payments. Market risk reflects changes in the valuation of real property interests and investments in receivables held by the Partnership. Concentration of Credit Risk The Partnership’s credit risk relates primarily to rent receivables, investments in receivables, cash and interest rate swap agreements. Cash accounts at each U.S. institution are insured by the Federal Deposit Insurance Corporation up to $250,000. The Partnership has not experienced any losses to date on invested cash. Credit risk associated with interest rate swap agreements arises from the potential failure of counterparties to perform in accordance with the terms of their contracts. The Partnership’s risk management policies define parameters of acceptable market risk and limit exposure to credit risk. Credit exposure resulting from derivative financial instruments is considered in their fair value amounts, among other factors such as the potential adverse position exposure arising from changes over time in interest rates, maturities, and other relevant factors. The Partnership does not anticipate nonperformance by any of its counterparties. The Partnership’s real property interests are primarily located throughout the United States. The ability of the tenants to honor the terms of their respective leases is dependent upon the economic, regulatory, and social factors affecting the communities in which the tenants operate. In certain instances, the Partnership’s position in the real property interest may be subordinate to a mortgage lender on the real property. Business Segments The FASB accounting guidance with regard to disclosures about segments of an enterprise and related information establishes standards for the manner in which public business enterprises report information about operating segments. The Partnership has three reportable segments, wireless communication, outdoor advertising, and renewable power generation for all periods presented. Recently Issued Accounting Standards Changes to GAAP are established by the FASB in the form of ASUs to the FASB’s Accounting Standard Codification. The Partnership considers the applicability and impact of all ASUs. Newly issued ASUs not listed below are expected to not have any material impact on its combined financial position and results of operations because either the ASU is not applicable or the impact is expected to be immaterial. In June 2018, the FASB issued ASU No. 2018-07, Compensation – Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting In March 2018, the FASB issued ASU No. 2018-05, Income Taxes (Topic 740): Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 118 Income Taxes Basis of Presentation and Summary of Significant Accounting Policies In November 2016, the FASB issued ASU No. 2016-18, Restricted Cash (Topic 230) In June 2016, the FASB issued ASU No. 2016-13, Measurement of Credit Losses on Financial Instruments Financial Instruments – Credit Losses Codification Improvements to Topic 326, Financial Instruments – Credit Losses In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842) In March 2018, the FASB approved an optional practical expedient that would allow lessors to elect, by class of underlying asset, to not separate nonlease components from the related lease components. The practical expedient is limited to circumstances in which both (1) the timing and pattern of revenue recognition are the same for the nonlease component and related lease component and (2) the combined single lease component would be classified as an operating lease. If a lessee makes payments for taxes and insurance directly to a third party on behalf of a lessor, lessors are required to exclude them from variable payments and from recognition in the lessors’ income statements. Otherwise, tenant recoveries for taxes and insurance are classified as additional lease revenue recognized by the lessor on a gross basis in their income statements. The FASB has also clarified that the lease ASU will require an assessment of whether a land easement meets the definition of a lease under the new lease ASU. An entity with land easements that are not accounted for as leases under the current lease accounting standards, however, may elect a practical expedient to exclude those land easements from assessment under the new lease accounting standards (ASU No 2018-01, Leases (Topic 842): Land Easement Practical Expedient for Transition to Topic 842) The Partnership adopted the guidance as of January 1, 2019. We elected to adopt the following practical expedients provided by these ASUs: • Package of practical expedients – requires us not to reevaluate our existing or expired leases as of January 1, 2019, under the new lease accounting ASUs. The election of the package of practical expedients allowed us to not reassess whether any expired or existing contracts are or contain leases and not reassess lease classification for any expired or existing leases that commenced prior to January 1, 2019. The package of practical expedients also allowed an entity to not reassess initial direct costs for any existing leases. The Partnership has not incurred su

Acquisitions

Acquisitions	12 Months Ended
	Dec. 31, 2018
Business Combinations [Abstract]
Acquisitions	3. Acquisitions Drop-down Acquisitions During the years ended December 31, 2018, 2017 and 2016, the Partnership completed one, four and five Drop-down Acquisitions, respectively, from our Sponsor and affiliates. Certain real property interests and financing assets included in the Drop-down Acquisitions completed by the Partnership were part of the right of first offer assets acquired from Landmark Dividend Growth Fund-G LLC (“Fund G”). All other Drop-down Acquisitions have been made directly from our Sponsor or from a wholly owned subsidiary of our Sponsor. The following table presents the Drop-down Acquisitions completed by the Partnership: Number of Tenant Sites Consideration (in millions) Renewable Investments Borrowings Wireless Outdoor Power in and Available Common Acquisition Date Source Communication Advertising Generation Total Receivables Cash Units Total January 18, 2018 Fund H 30 90 7 127 — $ 32.6 $ 27.3 $ 59.9 2018 Acquisitions 30 90 7 127 — $ 32.6 $ 27.3 $ 59.9 December 20, 2017 Sponsor 23 5 1 29 — $ 17.6 $ — $ 17.6 September 28, 2017 Sponsor 39 10 — 49 — 33.3 — 33.3 September 8, 2017 Sponsor (1) — — 1 1 — 1.6 — 1.6 July 28, 2017 Sponsor 30 1 1 32 2 22.0 — 22.0 June 8, 2017 Sponsor (1) 30 9 2 41 — 24.7 — 24.7 April 28, 2017 Sponsor (2) — 1 — 1 — 4.3 — 4.3 April 28, 2017 Fund G (2) — 1 — 1 — 3.8 3.5 7.3 March 31, 2017 Fund G (2) — 1 — 1 — 7.5 — 7.5 2017 Acquisitions 122 28 5 155 2 $ 114.8 $ 3.5 $ 118.3 December 22, 2016 Sponsor 28 5 2 35 2 $ 13.6 $ — $ 13.6 August 30, 2016 Sponsor 28 5 30 63 — 21.1 — 21.1 August 30, 2016 Fund G 214 171 1 386 5 75.6 64.7 140.3 August 1, 2016 Sponsor 37 4 12 53 6 24.4 — 24.4 April 20, 2016 Sponsor 1 — 1 2 1 6.3 — 6.3 2016 Acquisitions 308 185 46 539 14 $ 141.0 $ 64.7 $ 205.7 (1) In connection with the June 8, 2017 drop-down acquisition from our Sponsor, the Partnership entered into a contractual obligation to acquire one tenant site and related real property interest. On September 8, 2017, the Partnership completed the acquisition for cash consideration of $1.6 million. (2) In connection with the August 30, 2016 Fund G drop-down acquisition, the Partnership entered into a contractual obligation to acquire two tenant sites and related real property interests. The Partnership acquired one of these tenant sites and related real property interests on March 31, 2017 for cash consideration of $7.5 million and the remaining tenant site for $3.8 million on April 28, 2017. Upon completion of the full $11.3 million acquisition, the Partnership issued 221,729 Common Units to Fund G on April 28, 2017. Additionally, in connection with the December 22, 2016 drop-down acquisition, the Partnership entered into a contractual obligation to acquire one tenant site and related real property interest. On April 28, 2017 the Partnership completed the acquisition for cash consideration of approximately $3.7 million to the property owner and $0.6 million to Landmark as additional consideration. The 2016 Drop-down Acquisitions were deemed to be transactions between entities under common control. The Partnership’s statement of operation and cash flows for the year ended December 31, 2016 were adjusted retroactively, prior to the adoption of ASU No. 2017-01 on April 1, 2017, as if the 2016 Drop-down Acquisitions occurred on the earliest date during which the 2016 Drop-down Assets were under common control. Our historical financial statements for the year ended December 31, 2016, as filed on February 23, 2017, include all retroactive adjustments. The following tables present our results of operations and cash flows reflecting the effect of the 2016 Drop-down Acquisitions. Consolidated statement of operations and comprehensive income for the year ended December 31, 2016 (in thousands): Landmark Pre-Acquisition Infrastructure Landmark results of the Partners LP Infrastructure Drop-down (As Currently Partners LP Acquisitions Reported) Revenue Rental revenue $ 35,208 $ 5,963 $ 41,171 Expenses Management fees to affiliate — 196 196 Property operating 105 2 107 General and administrative 3,755 — 3,755 Acquisition-related 2,648 258 2,906 Amortization 9,703 1,488 11,191 Impairments 1,275 — 1,275 Total expenses 17,486 1,944 19,430 Other income and expenses (7,849 ) (3,971 ) (11,820 ) Net income $ 9,873 $ 48 $ 9,921 Other comprehensive loss (513 ) (4 ) (517 ) Comprehensive income $ 9,360 $ 44 $ 9,404 Consolidated summarized cash flows for the year ended December 31, 2016 (in thousands): Landmark Pre-Acquisition Infrastructure Landmark results of the Partners LP Infrastructure Drop-down (As Currently Partners LP Acquisitions Reported) Net cash provided by operating activities $ 18,982 $ 2,483 $ 21,465 Net cash used in investing activities (156,468 ) — (156,468 ) Net cash provided by (used in) financing activities 141,132 (2,483 ) 138,649 The Pre-Acquisition results of the Drop-Down Acquisitions column includes the retroactive adjustments to reflect the results of operations and cash flows of the 2016 Drop-down Acquisitions made prior to the acquisition dates for the periods under common control. Drop-down Acquisitions that occurred after March 31, 2017 are accounted for as transfers of net assets between entities under common control as the acquisitions do not meet the definition of a business in accordance with ASU No. 2017-01. The transfer of net assets is accounted for prospectively in the period in which the transfer occurs at the net carrying value. Any differences between the cash consideration and the net carrying value of the transfer of net assets have been allocated to the General Partner. Third Party Acquisitions During the years ended December 31, 2018, 2017 and 2016, the Partnership completed various direct third-party acquisitions. Third-party acquisitions include acquisitions in exchange for Common Units pursuant to our previously filed and effective registration statement on Form S-4, in which we may offer and issue, from time to time, an aggregate of up to 5,000,000 Common Units in connection with the acquisition by us or our subsidiaries of other businesses, assets or securities (the “Unit Exchange Program” or “UEP”). The following table presents direct third-party acquisitions completed by the Partnership: No. of Tenant Sites Consideration (in millions) Renewable Borrowings Wireless Outdoor Power Investments and Available Common Acquisition Description Communication Advertising Generation Total in Receivables Cash Units Total First Quarter UEP 5 1 — 6 — $ — $ 3.2 $ 3.2 Domestic 15 12 — 27 — 21.3 — 21.3 Total 20 13 — 33 — $ 21.3 $ 3.2 $ 24.5 Second Quarter International — 8 — 8 — $ 7.3 $ — $ 7.3 UEP 7 1 — 8 — 0.6 1.8 2.4 Domestic 3 1 — 4 — 21.5 — 21.5 Total 10 10 — 20 — $ 29.4 $ 1.8 $ 31.2 Third Quarter International 2 12 — 14 — $ 14.2 $ — $ 14.2 UEP 10 — — 10 — 0.9 1.8 2.7 Domestic 2 11 — 13 — 2.0 — 2.0 Total 14 23 — 37 — $ 17.1 $ 1.8 $ 18.9 Fourth Quarter International — 8 — 8 — $ 0.2 $ — $ 0.2 UEP 4 — — 4 — — 0.9 0.9 Domestic 1 1 — 2 — 0.1 — 0.1 Total 5 9 — 14 — $ 0.3 $ 0.9 $ 1.2 2018 Total 49 55 — 104 — $ 68.1 $ 7.7 $ 75.8 First Quarter International 3 4 — 7 — $ 3.6 $ — $ 3.6 UEP 1 — — 1 — — 0.1 0.1 Domestic 5 3 — 8 — 1.2 — 1.2 Total 9 7 — 16 — $ 4.8 $ 0.1 $ 4.9 Second Quarter International 2 4 — 6 1 $ 9.0 $ — $ 9.0 UEP 3 1 — 4 — — 1.0 1.0 Domestic 1 — — 1 — 0.5 — 0.5 Total 6 5 — 11 1 $ 9.5 $ 1.0 $ 10.5 Third Quarter International — 2 — 2 — $ 4.1 $ — $ 4.1 Domestic 3 — — 3 — 0.8 — 0.8 Total 3 2 — 5 — $ 4.9 $ — $ 4.9 Fourth Quarter International — 3 — 3 — $ 11.5 $ — $ 11.5 UEP 3 4 — 7 — — 2.7 2.7 Domestic 14 5 2 21 — 6.5 — 6.5 Total 17 12 2 31 — $ 18.0 $ 2.7 $ 20.7 2017 Total 35 26 2 63 1 $ 37.2 $ 3.8 $ 41.0 Second Quarter International 2 — — 2 — $ 0.1 $ — $ 0.1 UEP 3 — — 3 — — 1.6 1.6 Total 5 — — 5 — $ 0.1 $ 1.6 $ 1.7 Third Quarter International 4 1 — 5 — $ 4.4 $ — $ 4.4 UEP 1 — — 1 — — 0.1 0.1 Total 5 1 — 6 — $ 4.4 $ 0.1 $ 4.5 Fourth Quarter International 6 5 — 11 — $ 2.0 $ — $ 2.0 UEP 1 1 — 2 — — 0.9 0.9 Domestic 8 2 6 16 — 76.6 — 76.6 Total 15 8 6 29 — $ 78.6 $ 0.9 $ 79.5 2016 Total 25 9 6 40 — $ 83.1 $ 2.6 $ 85.7

Real Property Interests

Real Property Interests	12 Months Ended
	Dec. 31, 2018
Real Estate [Abstract]
Real Property Interests	4. Real Property Interests The following summarizes the Partnership’s real property interests (in thousands): December 31, 2018 2017 Land $ 128,302 $ 114,385 Real property interests – perpetual 101,343 114,612 Real property interests – finite life 416,080 481,810 Construction in progress 29,556 7,574 Total land and real property interests 675,281 718,381 Accumulated amortization of real property interests (39,069 ) (37,817 ) Land and net real property interests $ 636,212 $ 680,564 During the year ended December 31, 2018, the Partnership completed a sale of one outdoor advertising site to a third party in exchange for cash consideration of $0.1 million. We recognized a loss on sale of real property interest of less than $0.1 million upon completion of the sale. During the year ended December 31, 2017, the Partnership completed a sale of one wireless communication site to a third party in exchange for cash consideration of $0.2 million. We recognized a loss on sale of real property interest of less than $0.1 million upon completion of the sale. On March 22, 2016, the Partnership completed a sale of one wireless communication site to a third party in exchange for cash consideration of $0.8 million. We recognized a gain on sale of real property interest of $0.4 million upon completion of the sale. On March 30, 2016, the Partnership completed a sale of 12 wireless communication sites to Landmark, in exchange for cash consideration of $2.0 million. The assets were originally acquired by Landmark and sold to the Partnership during the July 21, 2015 and September 21, 2015 acquisitions. Landmark repurchased the pool of assets at the same purchase price sold to the Partnership. As the transaction is between entities under common control, the difference between the cash consideration and the net book value of the assets was allocated to the General Partner and no gain or loss was recognized. During the years ended December 31, 2018, 2017 and 2016, the Partnership paid total consideration of $59.9 million, $118.3 million and $205.7 million, respectively, for Drop-down Acquisitions. The Drop-down Acquisitions are deemed to be transactions between entities under common control. Drop-down Acquisitions prior to the adoption of ASU No. 2017-01 on April 1, 2017 required the assets and liabilities to be transferred at the historical cost of the parent of the entities and historical periods retroactively adjusted. During the year ended December 31, 2016, the difference between the total consideration of $205.7 million and the historical cost basis of $141.1 million, was allocated to the General Partner. For Drop-down Acquisitions after March 31, 2017, the transfer of net assets is accounted for prospectively in the period in which the transfer occurs at the net carrying value, and prior periods have not been retroactively adjusted. During the years ended December 31, 2018 and 2017, the difference between the total consideration of $59.9 million and $118.3 million and the net carrying value of $39.5 million and $99.8 million, respectively, was allocated to the General Partner. During 2017, the Partnership started developing an ecosystem of technologies that provide smart enabled infrastructure (“Flex Grid TM TM TM In December 2016, the Partnership formed a joint venture to acquire real property interests that are leased to companies in the outdoor advertising industry located in the UK and Europe. Our venture partner provides acquisition opportunities and asset management services to the consolidated joint venture. As of December 31, 2018, the consolidated joint venture had 34 tenant sites and one investment in receivables with total net book value of $43.5 million. During the year ended December 31, 2018 and 2017, the consolidated joint venture generated rental revenue of $3.4 million and $0.8 million, respectively. No revenue was generated during the year ended December 31, 2016. The Partnership applies the asset acquisition method to all acquired investments of real property interests for transactions that meet the definition of an asset acquisition. The fair value of the assets acquired and liabilities assumed is typically determined by using Level III valuation methods. The most sensitive assumption is the discount rate used to discount the estimated cash flows from the real estate rights. For purposes of the computation of fair value assigned to the various tangible and intangible assets, the Partnership assigned discount rates ranging between 6% and 20%. The following table summarizes final allocations for acquisitions made during the years ended December 31, 2018, 2017, and 2016 of estimated fair values of the assets acquired and liabilities assumed (in thousands). Financial information for the year ended December 31, 2016, has been retroactively adjusted for transactions between entities under common control prior to April 1, 2017. See Notes 2 and 3 for additional information. Investments in real In-place lease Above-market Below-market Period Land property interests intangibles lease intangibles lease intangibles Total 2018 $ 16,646 $ 91,314 $ 7,939 $ 1,309 $ (2,031 ) $ 115,177 2017 25,151 107,195 3,781 976 (1,850 ) 135,253 2016 75,959 34,096 4,003 972 (864 ) 114,166 Future estimated aggregate amortization of finite lived real property interests for each of the five succeeding fiscal years and thereafter as of December 31, 2018, are as follows (in thousands): 2019 $ 11,765 2020 11,237 2021 10,646 2022 10,362 2023 10,335 Thereafter 322,666 Total $ 377,011 The weighted average remaining amortization period for non‑perpetual real property interests is 42 years and 49 years at December 31, 2018 and 2017, respectively. During the years ended December 31, 2018, 2017 and 2016, six, six and nine of the Partnership’s real property interests were impaired and we recognized impairment charges totaling $0.6 million, $0.8 million and $1.3 million, respectively. The carrying value of each real property interest was determined to have a fair value of zero. During the year ended December 31, 2018, the Partnership recognized a gain on the contribution of real property interests of $100 million in connection with the formation of an unconsolidated joint venture (the “JV”) in which 545 tenant sites were contributed to the JV by the Partnership as described in Note 8, Investment in Unconsolidated Joint Venture In June 2018, the Partnership entered into a plan to sell one of its real property interests. The Partnership determined that the sale does not meet the criteria for discontinued operations presentation as the plan to sell does not represent a strategic shift that will have a major effect on its operations and financial results. As a result of this classification, the assets and liabilities of the real property interest are separately presented as AHFS and liabilities associated with AHFS in the consolidated balance sheet as of December 31, 2018. On January 4, 2019, the sale was completed for total consideration of $13.5 million. The carrying amounts of the major classes of assets and liabilities that were classified as held for sale are as follows (in thousands): December 31, 2018 Land $ 1,286 Real property interests, net 5,566 Other intangible assets, net 994 AHFS $ 7,846 Other intangible liabilities, net $ 397 Liabilities associated with AHFS $ 397

Other Intangible Assets and Lia

Other Intangible Assets and Liabilities	12 Months Ended
	Dec. 31, 2018
Other Intangible Assets And Liabilities [Abstract]
Other Intangible Assets and Liabilities	5. Other Intangible Assets and Liabilities The following summarizes our identifiable intangible assets, including above/below‑market lease intangibles (in thousands): December 31, 2018 2017 Acquired in-place lease Gross amount $ 23,261 $ 20,486 Accumulated amortization (6,237 ) (6,119 ) Net amount $ 17,024 $ 14,367 Acquired above-market leases Gross amount $ 6,542 $ 6,503 Accumulated amortization (2,727 ) (2,886 ) Net amount $ 3,815 $ 3,617 Total other intangible assets, net $ 20,839 $ 17,984 Acquired below-market leases Gross amount $ (17,097 ) $ (21,218 ) Accumulated amortization 7,806 8,385 Total other intangible liabilities, net $ (9,291 ) $ (12,833 ) We recorded net amortization of above and below‑market lease intangibles of $1.2 million, $1.2 million and $1.3 million as an increase to rental revenue for the years ended December 31, 2018, 2017 and 2016, respectively. We recorded amortization of in‑place lease intangibles of $2.1 million, $1.6 million and $1.5 million as amortization expense for the years ended December 31, 2018, 2017, and 2016, respectively. Future aggregate amortization of intangibles for each of the five succeeding fiscal years and thereafter as of December 31, 2018 follows (in thousands): Acquired Acquired Acquired in-place above-market below-market leases leases leases 2019 $ 1,725 $ 692 $ (1,580 ) 2020 1,651 532 (1,535 ) 2021 1,589 426 (1,408 ) 2022 1,507 344 (1,284 ) 2023 1,223 308 (831 ) Thereafter 9,329 1,513 (2,653 ) Total $ 17,024 $ 3,815 $ (9,291 )

Future Minimum Rents

Future Minimum Rents	12 Months Ended
	Dec. 31, 2018
Operating Leases Future Minimum Payments Receivable [Abstract]
Future Minimum Rents	6. Future Minimum Rents At December 31, 2018, future minimum receipts from tenants on leases with non ‑ 2019 $ 17,250 2020 16,798 2021 16,250 2022 16,050 2023 14,903 Thereafter 54,773 Total $ 136,024

Investments in Receivables

Investments in Receivables	12 Months Ended
	Dec. 31, 2018
Notes Receivable Net [Abstract]
Investments in Receivables	7. Investments in Receivables Investment in receivables includes financing arrangements and management agreements whereby we purchased the right to receive a portion of a rental payment under a contract but are not a party to the lease and do not have a real property interest. Additionally, certain lease arrangements of real property interests meet the definition of a financial asset and included in investments in receivables in our financial statements. Transfer of investments in receivables from the Sponsor and affiliates to the Partnership, which met the conditions to be accounted for as a sale in accordance with ASC 860, Transfers and Servicing During the year ended December 31, 2018, 16 of the Partnership’s investments in receivables were impaired and recognized impairment charges totaling $0.8 million. The investments in receivables were impaired to net realizable value. Pursuant to the terms of the omnibus agreement, Landmark indemnified the Partnership for the loss related to the impairment of investments in receivables which is treated as a deemed capital contribution. Interest income recognized on the receivables totaled $1.6 million, $1.6 million and $1.2 million during 2018, 2017, and 2016, respectively. The following table reflects the activity in investments in receivables (in thousands): Year Ended December 31, 2018 2017 Investments in receivables – beginning $ 20,782 $ 17,440 Acquisitions — 4,389 Impairments (785 ) — Sales (350 ) — Repayments (1,108 ) (1,180 ) Interest accretion 3 7 Foreign currency translation adjustment (194 ) 126 Investments in receivables – ending $ 18,348 $ 20,782 Annual amounts due as of December 31, 2018, are as follows (in thousands): 2019 $ 2,166 2020 2,154 2021 2,212 2022 2,345 2023 2,468 Thereafter 24,263 Total $ 35,608 Interest $ 17,260 Principal 18,348 Total $ 35,608

Investment in Unconsolidated Jo

Investment in Unconsolidated Joint Venture	12 Months Ended
	Dec. 31, 2018
Equity Method Investments And Joint Ventures [Abstract]
Investment in Unconsolidated Joint Venture	8. Investment in Unconsolidated Joint Venture On September 24, 2018, the Partnership completed the formation of the unconsolidated JV. The Partnership contributed 545 tenant site assets to the unconsolidated JV that secured the Partnership’s $125.4 million Series 2018-1 secured notes (the “2018 Securitization”), in exchange for a 50.01% membership interest in the unconsolidated JV and $65.5 million in cash (the “Transaction”). The Partnership does not control the unconsolidated JV and therefore, accounts for its investment in the unconsolidated JV using the equity method of accounting prospectively upon formation of the unconsolidated JV. The Partnership recognized a gain on contribution of real property interests in accordance with ASC 610-20, Other Income - Gains and Losses from the Derecognition of Nonfinancial Assets In addition to the contribution of assets, the JV assumed the 2018 Securitization, which was completed by the Partnership on June 6, 2018 involving certain tenant sites and related property interests owned by certain unrestricted special purpose subsidiaries of the Partnership, through the issuance of the Class C, Class D and Class F Series 2018-1 Secured Notes (the “2018 Secured Notes”), in an aggregate principal amount of $125.4 million. The net proceeds from the 2018 Securitization were primarily used to pay down the revolving credit facility by $120.5 million. The Class F notes are subordinated in right of payment to the Class D notes and the Class D notes are subordinated in right of payment to the Class C notes. The 2018 Secured Notes were issued at a discount of less than $0.1 million, which will be accreted and recognized as interest expense over the term of the secured notes. The Class C, Class D and Class F 2018 Secured Notes bear interest at a fixed note rate per annum of 3.97%, 4.70% and 5.92%, respectively. The following table summarizes the Partnership’s contribution of assets and liabilities, at cost, to the unconsolidated JV as of the date of the Transaction (in thousands): Assets Cash, cash equivalents and restricted cash $ 1,549 Real property interests, net 153,028 Other intangible assets, net 2,468 Total assets $ 157,045 Liabilities Secured notes, net $ 122,084 Other intangible liabilities, net 3,046 Other liabilities 758 Total liabilities $ 125,888 Net equity contributed to the unconsolidated joint venture $ 31,157 The following table summarizes the Partnership’s gain on the contribution of real property interests to the unconsolidated JV as of the date of the Transaction (in thousands): Investment in unconsolidated joint venture $ 65,611 Proceeds from sale of real property interests 65,585 Less: Net equity contributed to the unconsolidated joint venture (31,157 ) Gain on sale of real property interests $ 100,039 The following table summarizes balance sheet information for the unconsolidated JV as of December 31, 2018 (in thousands): Total assets $ 263,228 Total liabilities 128,448 Total equity 134,780 Total liabilities and equity $ 263,228 The following table summarizes financial information for the unconsolidated JV from the date of the Transaction to December 31, 2018 (in thousands): Rental revenue $ 3,697 Net income $ 117

Debt

Debt	12 Months Ended
	Dec. 31, 2018
Debt Disclosure [Abstract]
Debt	9. Debt The following table summarizes the Partnership’s debt (in thousands): Outstanding Balance Maturity Date December 31, 2018 December 31, 2017 Revolving credit facility November 15, 2023 $ 155,000 $ 304,000 4.38% senior secured notes June 30, 2036 $ 42,058 $ — Series 2017-1 Class A November 15, 2022 (1) 60,900 62,000 Series 2017-1 Class B November 15, 2022 (1) 17,563 18,000 Series 2016-1 Class A June 1, 2021 (2) 86,258 89,171 Series 2016-1 Class B June 1, 2021 (2) 25,100 25,100 Secured Notes $ 231,879 $ 194,271 Discount on Secured Notes (1,454 ) (1,826 ) Deferred loan costs (6,740 ) (5,196 ) Secured Notes, net $ 223,685 $ 187,249 (1) Maturity date reflects anticipated repayment date; final legal maturity is November 15, 2047. (2) Maturity date reflects anticipated repayment date; final legal maturity is July 15, 2046. Revolving Credit Facility The Partnership’s revolving credit facility with SunTrust Bank, as administrative agent, and a syndicate of lenders will mature on November 15, 2023 and will be available for working capital, capital expenditures, permitted acquisitions and general partnership purposes, including distributions. On November 15, 2018, the Partnership completed its Third Amended and Restated Credit Facility and obtained commitments from a syndicate of banks with initial borrowing commitments of $450.0 million for five-years. Additionally, borrowings up to $75.0 million may be denominated in pound sterling, euro, Australian dollar and Canadian dollar. Substantially all of our assets, excluding equity in and assets of unrestricted subsidiaries, after‑acquired real property (other than real property that is acquired from affiliate funds and is subject to a mortgage), and other customary exclusions, are pledged (or secured by mortgages), as collateral under our revolving credit facility. Our revolving credit facility contains various customary covenants and restrictive provisions. In addition, our revolving credit facility contains customary events of default, including, but not limited to (i) event of default resulting from our failure or the failure of our restricted subsidiaries to comply with covenants and financial ratios, (ii) the occurrence of a change of control (as defined in the credit agreement), (iii) the institution of insolvency or similar proceedings against us or our restricted subsidiaries, (iv) the occurrence of a default under any other material indebtedness (as defined in the credit agreement) we or our restricted subsidiaries may have and (v) any one or more collateral documents ceasing to create a valid and perfected lien on collateral (as defined in the credit agreement). Upon the occurrence and during the continuation of an event of default, subject to the terms and conditions of the credit agreement, the lenders may declare any outstanding principal of our revolving credit facility debt, together with accrued and unpaid interest, to be immediately due and payable and may exercise the other remedies set forth or referred to in the credit agreement and the other loan documents. Loans under the revolving credit facility bear interest at a rate equal to LIBOR, plus a spread ranging from 1.75% to 2.25% (determined based on leverage levels). As of December 31, 2018, the applicable spread was 2.00%. Additionally, under the revolving credit facility we will be subject to an annual commitment fee (determined based on leverage levels) associated with the available undrawn capacity subject to certain restrictions. As of December 31, 2018, the applicable annual commitment rate used was 0.175%. The revolving credit facility requires monthly interest payments and the outstanding debt balance is due upon maturity on November 15, 2023. As of December 31, 2018, $155 million was outstanding and there was $295 million of undrawn borrowing capacity, subject to compliance with certain covenants. As of December 31, 2018, the Partnership was in compliance with all financial covenants required under the revolving credit facility. Secured Notes On April 24, 2018, the Partnership entered into a note purchase and private shelf agreement (“Note Purchase Agreement”) pursuant to which the Partnership agreed to sell an initial $43.7 million aggregate principal amount of 4.38% senior secured notes, in a private placement (the “4.38% Senior Secured Notes”) involving a segregated pool of renewable power generation sites and related property interests. The 4.38% Senior Secured Notes are fully amortized through June 30, 2036. The Partnership may from time to time issue and sell additional senior secured notes pursuant to the Note Purchase Agreement, in an aggregate principal amount when aggregated with the initial principal amount of up to $225 million. We used all the net proceeds of $41.0 million to repay a portion of the borrowings under our revolving credit facility. On November 30, 2017, the Partnership completed a securitization transaction (the “2017 Securitization”) involving certain outdoor advertising tenant sites and related property interests owned by certain unrestricted special purpose subsidiaries of the Partnership, through the issuance of the Series 2017-1 Secured Notes, Class A and Class B (the “2017 Secured Notes”), in an aggregate principal amount of $80.0 million. The net proceeds from the 2017 Securitization were primarily used to pay down the revolving credit facility by $54.0 million and $17.5 million held in a restricted reserve accounts, including $16.0 million into a site acquisition account to be used to acquire additional tenant sites pursuant to the Indenture. The Class B notes are subordinated in right of payment to the Class A notes. The 2017 Secured Notes were issued at a discount of $1.8 million, which will be accreted and recognized as interest expense over the term of the secured notes. The Class A and Class B 2017 Secured Notes bear interest at a fixed note rate per annum of 4.10% and 3.81%, respectively. The Partnership is required to make monthly payments of principal and interest on Class A and Class B 2017 Secured Notes based on a 30-year amortization period, commencing in January 2018. On each payment date on and after the payment date occurring in January 2018, available funds are used to repay the Class A 2017 Secured Notes in an amount sufficient to pay the Class A 2017 Secured Notes monthly amortization amount and to repay the Class B 2017 Secured Notes in an amount sufficient to pay the Class B 2017 Secured Notes monthly amortization amount on such payment date. No other payments of principal will be required to be made prior to the anticipated repayment date in November 2022. On June 16, 2016, the Partnership completed a securitization transaction (the “2016 Securitization”) involving certain tenant sites and related real property interests owned by certain unrestricted special purpose subsidiaries of the Partnership, through the issuance of the Series 2016-1 Secured Notes, Class A and Class B (the “2016 Secured Notes”), in an aggregate principal amount of $116.6 million. The net proceeds from the 2016 Securitization were used to pay down the revolving credit facility by $112.3 million. The Class B notes are subordinated in right of payment to the Class A notes. The 2016 Secured Notes were issued at a discount of $17,292, which will be accreted and recognized as interest expense over the term of the secured notes. The Class A and Class B 2016 Secured Notes bear interest at a fixed note rate per annum of 3.52% and 7.02%, respectively. The Partnership is required to make monthly payments of principal and interest on the Class A 2016 Secured Notes based on a 30-year amortization period and monthly payments of interest only on the Class B 2016 Secured Notes, commencing in July 2016. On each payment date on and after the payment date occurring in July 2016, available funds are used to repay the Class A 2016 Secured Notes in an amount sufficient to pay the Class A 2016 Secured Notes monthly amortization amount. No other payments of principal will be required to be made prior to the anticipated repayment date in June 2021. The secured notes described above are collectively referred to as the “Secured Notes” and the tenant site assets securing the Secured Notes are collectively referred to as the “Secured Tenant Site Assets.” The Secured Notes are secured by (1) mortgages and deeds of trust on substantially all of the Secured Tenant Site Assets and their operating cash flows, (2) a security interest in substantially all of the personal property of the obligors (as defined in the applicable indenture), and (3) the rights of the obligors under a management agreement. Under the terms of the applicable indenture, amounts due under the Secured Notes will be paid solely from the cash flows generated from the operation of the Secured Tenant Site Assets, as applicable, which must be deposited into reserve accounts, and thereafter distributed solely pursuant to the terms of the applicable indenture. On a monthly basis, after payment of all required amounts under the applicable indenture, subject to the conditions described below, the excess cash flows generated from the operation of such assets are released to the Partnership. As of December 31, 2018 and 2017, $3.7 million and $18.7 million was held in such reserve accounts which are classified as Restricted Cash on the accompanying consolidated and combined balance sheets. Certain information with respect to the 2017 Securitization and the 2016 Securitization is set forth below. The debt service coverage ratio (“DSCR”) is generally calculated as the ratio of annualized net cash flow (as defined in the applicable indenture) to the amount of interest, servicing fees and trustee fees required to be paid over the succeeding 12 months on the principal amount of the Secured Notes, as applicable, that will be outstanding on the payment date following such date of determination. Conditions Limiting Distributions of Excess Cash Issuer or Borrower Notes Issued Cash Trap DSCR Amortization Period 2017 Securitization LMRK Issuer Co. 2 LLC Series 2017-1 Secured Notes, Class A and Class B 1.30x (1) (2) 2016 Securitization LMRK Issuer Co. LLC Series 2016-1 Secured Notes, Class A and Class B 1.30x (1) (2) (1) Once triggered, a Cash Trap DSCR condition continues to exist until the DSCR exceeds the Cash Trap DSCR for two consecutive calendar months. During a Cash Trap DSCR condition, all cash flow in excess of amounts required to make debt service payments, to fund required reserves, to pay management fees and budgeted operating expenses and to make other payments required under the indenture, referred to as excess cash flow, will be deposited into a reserve account instead of being released to the applicable issuer. (2) An amortization period commences if the DSCR is equal to or below 1.15x (the “Minimum DSCR”) at the end of any calendar month and continues to exist until the DSCR exceeds the Minimum DSCR for two consecutive calendar months. The Partnership is subject to covenants customary for notes issued in rated securitizations. Among other things, the obligors are prohibited from incurring other indebtedness for borrowed money or further encumbering their assets (as defined in the applicable agreement). As of December 31, 2018, the Partnership was in compliance with all financial covenants under the Secured Notes. The Secured Notes’ annual principal payment amounts due as of December 31, 2018, are as follows (in thousands): 2019 $ 8,206 2020 10,313 2021 (1) 108,013 2022 72,598 2023 2,714 Thereafter (1) 30,035 Total $ 231,879 (1) Reflects anticipated repayment dates Interest Expense For the years ended December 31, 2018, 2017 and 2016, the Partnership incurred interest expense of $24.3 million, $18.4 million and $13.9 million, respectively, and had interest payable of $0.3 million and $0.7 million as of December 31, 2018 and 2017, respectively. Additionally, the Partnership recorded deferred loan costs and amortization of discount on secured notes, which is included in interest expense, of $3.8 million, $2.2 million and $1.7 million for the years ended December 31, 2018, 2017 and 2016, respectively. In connection with the amendment of the credit facility on November 15, 2018, the unamortized balance of the deferred loan costs totaling $0.2 million was recorded as a loss on extinguishment of debt during the year ended December 31, 2018. Additionally, the Partnership capitalized $3.8 million to deferred loan costs to be amortized over the term of the amended and restated revolving credit facility. Drop-down Acquisitions Interest expense for the year ended December 31, 2016 includes retroactive adjustment of $2.5 million associated with Fund G’s secured debt facilities. Additionally, deferred loan costs amortization, which is included in interest expense, has been retroactively adjusted to include $0.4 million for the year ended December 31, 2016. In connection with the acquisition of Fund G during the year ended December 31, 2016, $74.6 million was used to repay Fund G’s secured indebtedness. At the time of acquisition, the unamortized balance of the deferred loan costs totaling $1.7 million was recorded as a loss on extinguishment of debt during the year ended December 31, 2016.

Interest Rate Swap Agreements

Interest Rate Swap Agreements	12 Months Ended
	Dec. 31, 2018
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Interest Rate Swap Agreements	10. Interest Rate Swap Agreements The following table summarizes the terms and fair value of the Partnerships’ interest rate swap agreements (in thousands, except percentages): Date Notional Effective Maturity Fair Value Asset (Liability) at December 31, Entered Value Fixed Rate Index Date Date 2018 2017 December 24, 2014 $ 70,000 1.52 % 1-month USD LIBOR 12/24/2014 12/24/2018 $ — $ 164 February 5, 2015 25,000 1.29 1-month USD LIBOR 4/13/2015 4/13/2019 102 174 August 24, 2015 50,000 1.74 1-month USD LIBOR 10/1/2015 10/1/2022 1,259 840 March 23, 2016 50,000 1.67 1-month USD LIBOR 12/24/2018 12/24/2021 1,117 761 March 31, 2016 20,000 1.56 1-month USD LIBOR 12/24/2018 12/24/2021 508 364 March 31, 2016 25,000 1.63 1-month USD LIBOR 4/13/2019 4/13/2022 569 418 June 12, 2017 50,000 2.10 1-month USD LIBOR 3/2/2018 9/2/2024 1,035 438 November 15, 2018 £ 38,000 1.49 1-month GBP LIBOR 11/30/2020 11/30/2025 (402 ) — $ 4,188 $ 3,159 During the years ended December 31, 2018, 2017 and 2016, the Partnership recorded a gain of $1.0 million, $1.7 million and $2.3 million, respectively, resulting from the change in fair value of the interest rate swap agreements which is reflected as an unrealized gain on derivatives on the consolidated and combined statements of operations. Additionally, during the year ended December 31, 2018, the Partnership recognized less than $0.1 million of foreign currency transaction loss resulting from the changes in exchange rates as of December 31, 2018 affecting mark-to-market adjustments on our foreign currency interest rate swap agreement denominated in pound sterling. During the year ended December 31, 2016, the Partnership recorded a realized loss on derivatives of $0.1 million as a result of the termination of the Fund G’s interest rate swap agreements. Prior-period information has been retroactively adjusted to include an unrealized gain on derivative financial instruments related to Fund G’s interest rate swap agreements of $0.1 million during the year ended December 31, 2016. The fair value of the interest rate swap agreements is derived based on Level 2 inputs. To illustrate the effect of movements in the interest rate market, the Partnership performed a market sensitivity analysis on its outstanding interest rate swap agreements. The Partnership applied various basis point spreads to the underlying interest rate curve of the derivative in order to determine the instruments’ value including change in fair value at December 31, 2018. The following table summarizes the results of the analysis performed (in thousands): Effects of Change in Interest Rates Date Entered Maturity Date +50 Basis Points -50 Basis Points +100 Basis Points -100 Basis Points February 5, 2015 4/13/2019 134 71 165 40 August 24, 2015 10/1/2022 2,111 400 2,940 (483 ) March 23, 2016 12/24/2021 1,802 429 2,470 (276 ) March 31, 2016 12/24/2021 782 234 1,049 (48 ) March 31, 2016 4/13/2022 918 218 1,258 (143 ) June 12, 2017 9/2/2024 2,291 (262 ) 3,510 (1,598 ) November 15, 2018 11/30/2025 684 (1,675 ) 1,784 (2,939 )

Unit-Based Compensation

Unit-Based Compensation	12 Months Ended
	Dec. 31, 2018
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Unit-Based Compensation	11. Unit-Based Compensation Compensation of our Directors The Non-Employee Director Compensation Plan provides each director that is neither an officer of the General Partner nor an employee or an affiliate of the General Partner with annualized compensation consisting of $35,000 in cash, payable quarterly, plus an annual grant of Common Units valued at $35,000 and additional cash compensation for attending meetings of the board of directors of the General Partner or a committee thereof. The chairman of the audit committee of the board of directors shall be entitled to additional annualized cash compensation of $10,000 and the chairman of any other committee of the board of directors, as may be established at any time, shall be entitled to an amount in cash as determined by the board of directors. On January 25, 2018 the board of directors of the General Partner adopted the Amended and Restated Non-Employee Director Compensation Plan that increased the cash and equity compensation for Non-Employee Directors to $40,000 in cash, payable quarterly, and an annual grant of Common Units valued at $40,000. Additionally, the chairman of the audit committee of the board of directors shall be entitled to additional annualized cash compensation of $15,000. Our Long‑Term Incentive Plan In connection with the IPO, the board of directors of the General Partner adopted the Landmark Infrastructure Partners LP 2014 Long-Term Incentive Plan (the “LTIP”). The LTIP provides for the grant, from time to time at the discretion of the board of directors of the General Partner or any committee thereof that may be established for such purpose or by any delegate of the board of directors or such committee, subject to applicable law (the “plan administrator”), of equity-based awards. The purpose of the LTIP is to promote the interests of the Partnership and the General Partner by providing incentive compensation awards to individuals providing services to the Partnership or the General Partner to encourage superior performance. The LTIP is also intended to enhance the ability of the Partnership and the General Partner to attract and retain the services of individuals who are essential for the growth and profitability of the Partnership and the General Partner and to encourage these individuals to devote their best efforts to advancing the business of the Partnership and the General Partner. The LTIP will initially limit the number of units that may be delivered pursuant to vested awards to 785,000 Common Units, subject to proportionate adjustment in the event of unit splits and similar events, with such amount increased annually on the first day of each calendar year beginning January 1, 2016 and ending on and including January 1, 2024 by a number of Common Units equal to the least of (i) 1,570,000 Common Units, (ii) 2% of the total number of common units outstanding on the last day of the immediately preceding calendar year and (iii) such smaller number of Common Units as determined by the board of directors of the General Partner. Common Units subject to awards that are cancelled, forfeited, withheld to satisfy exercise prices or tax withholding obligations, or otherwise terminated without delivery of the Common Units will be available for delivery pursuant to other awards. We have granted 3,826, 6,798 and 9,840 units under our LTIP as compensation to our Non-Employee Directors during the years ended December 31, 2018, 2017 and 2016, respectively, and no other awards were granted to any of our executive officers.

Equity

Equity	12 Months Ended
	Dec. 31, 2018
Equity [Abstract]
Equity	12. Equity The table below summarizes changes in the numbers of units outstanding for the years ended December 31, 2018, 2017 and 2016 (in units): Mezzanine Equity - Series A Series B Series C Common Subordinated Preferred Preferred Preferred Balance at December 31, 2015 11,820,144 3,135,109 — — — Issuance of Series A Preferred Units - April 4, 2016 — — 800,000 — — Issuance of Series B Preferred Units - August 8, 2016 — — — 1,840,000 — Issuance of units in connection with the Acquired Funds 3,592,430 — — — — Issuance of Common Units - October 19, 2016 3,450,000 — — — — Issuance under ATM Programs 405,156 — 63,957 — — Issuance under Unit Exchange Program 172,985 — — — — Unit-based compensation 9,840 — — — — Balance at December 31, 2016 19,450,555 3,135,109 863,957 1,840,000 — Issuance of units to Fund G - April 28, 2017 221,729 — — — — Issuance under ATM Programs 240,426 — 704,445 623,015 — Issuance under Unit Exchange Program 226,950 — — — — Unit-based compensation 6,798 — — — — Balance at December 31, 2017 20,146,458 3,135,109 1,568,402 2,463,015 — Issuance of units to Fund H - January 18, 2018 1,506,421 — — — — Conversion of subordinated units 3,135,109 (3,135,109 ) — — — Issuance of Series C Preferred Units - April 2, 2018 — — — — 2,000,000 Issuance under ATM Programs 27,830 — 24,747 — — Issuance under Unit Exchange Program 508,157 — — — — Unit-based compensation 3,826 — — — — Balance at December 31, 2018 25,327,801 — 1,593,149 2,463,015 2,000,000 On February 23, 2017, the Partnership filed a universal shelf registration statement on Form S-3 with the SEC. The shelf registration statement was declared effective by the SEC on March 27, 2017 and permits us to issue and sell common and preferred units, from time to time, representing limited partner interests in us and debt securities up to an aggregate amount of $750.0 million. Common Units On February 16, 2016, the Partnership established a Common Unit at-the-market offering program (the “Common Unit ATM Program”) pursuant to which we may sell, from time to time, Common Units having an aggregate offering price of up to $50.0 million pursuant to our previously filed and effective registration statement on Form S-3. The net proceeds from sales under the Common Unit ATM Program will be used for general partnership purposes, which may include, among other things, the repayment of indebtedness and to potentially fund future acquisitions. During the years ended December 31, 2018, 2017 and 2016, the Partnership issued 27,830, 240,426 and 405,156 Common Units under our Common Unit ATM Program, generating proceeds of approximately $0.5 million, $4.2 million and $6.9 million before issuance costs, respectively. On February 16, 2016, the Partnership filed a shelf registration statement on Form S-4 with the SEC. The shelf registration statement was declared effective on March 10, 2016 and permits us to offer and issue, from time to time, an aggregate of up to 5,000,000 Common Units in connection with the acquisition by us or our subsidiaries of other businesses, assets or securities. During the years ended December 31, 2018, 2017 and 2016, under the Unit Exchange Program we completed acquisitions of twenty-eight, twelve and six tenant sites in exchange for 508,157, 226,950 and 172,985 Common Units, valued at approximately $7.6 million, $3.8 million and $2.6 million, respectively. On October 19, 2016, the Partnership completed a public offering of 3,450,000 Common Units, which includes the full exercise of the underwriters’ option to purchase 450,000 Common Units, at a price to the public of $16.30 per Common Unit, or $15.53 per Common Unit net of the underwriters’ discount. We received net proceeds of $53.3 million after deducting the underwriters’ discount and offering expenses paid by us of $2.9 million. The net proceeds from the offering were used to repay a portion of the borrowings under our revolving credit facility. In connection with the Fund G drop-down acquisition, the Partnership entered into a contractual obligation to acquire two tenant sites and related real property interests. Upon completion of the acquisitions, the Partnership issued 221,729 Common Units to Fund G on April 28, 2017, as described in Note 3, Acquisitions Subordinated Units Our Partnership Agreement provides that, during the subordination period, the Common Units have the right to receive distributions of available cash from operating surplus each quarter in an amount equal to $0.2875 per Common Unit, which amount is defined in our Partnership Agreement as the minimum quarterly distribution, plus any arrearages in the payment of the minimum quarterly distribution on the Common Units from prior quarters, before any distributions of available cash from operating surplus may be made on the subordinated units. The requirements under our partnership agreement for the conversion of all the subordinated units into common units was satisfied upon the payment of our quarterly cash distribution on February 14, 2018. Therefore, effective February 15, 2018, all of our subordinated units which are owned by Landmark, were converted on a one-for-one basis into common units. The conversion of subordinated units does not impact the amount of cash distributions or total number of outstanding units. Preferred Units On April 4, 2016, the Partnership completed a public offering of $20.0 million of 8.0% Series A Cumulative Redeemable Perpetual Preferred Units (“Series A Preferred Units”), representing limited partner interests in the Partnership, at a price of $25.00 per unit. We received net proceeds of approximately $18.4 million after deducting underwriters’ discounts and offering expenses paid by us of $1.6 million. We used all proceeds to repay a portion of the borrowings under our revolving credit facility. Distributions on the Series A Preferred Units are cumulative from the date of original issuance and will be payable quarterly in arrears on the 15th day of January, April, July and October of each year, when, as and if declared by the board of directors of our General Partner. The initial distribution on the Series A Preferred Units was paid on July 15, 2016 in an amount equal to $0.5611 per unit. Distributions on the Series A Preferred Units will accumulate at a rate of 8.0% per annum per $25.00 stated liquidation preference per Series A Preferred Unit. In connection with the closing of the Series A Preferred Unit offering, on April 4, 2016, the Partnership executed the Second Amended and Restated Agreement of Limited Partnership of Landmark Infrastructure Partners LP for the purpose of updating the form of Partnership Agreement and defining the preferences, rights, powers and duties of holders of Series A Preferred Units. On June 24, 2016, the Partnership established a Series A Preferred Unit at-the-market offering program (the “Series A Preferred Unit ATM Program”) pursuant to which we may sell, from time to time, Series A Preferred Units having an aggregate offering price of up to $40.0 million pursuant to our previously filed and effective registration statement on Form S-3. The net proceeds from sales under the Series A Preferred Unit ATM Program will be used for general Partnership purposes, which may include, among other things, the repayment of indebtedness and to potentially fund future acquisitions. During the years ended December 31, 2018, 2017 and 2016, the Partnership issued 24,747, 704,445 and 63,957 Series A Preferred Units under our Series A Preferred Unit ATM Program, generating proceeds of approximately $0.6 million, $17.7 million and $1.6 million before issuance costs, respectively. As of December 31, 2018, we have $20.1 million remaining available to be issued under the Series A Preferred Unit ATM Program. On August 8, 2016, the Partnership completed a public offering of $46.0 million of 7.9% Series B Cumulative Redeemable Perpetual Preferred Units, at a price of $25.00 per unit, representing limited partner interests in the Partnership (“Series B Preferred Units” and together with the Series A Preferred Units the “Preferred Units”). The Partnership issued 1,840,000 Series B Preferred Units, which included the full exercise of the underwriters’ option to purchase an additional 240,000 Series B Preferred Units. We received net proceeds of approximately $44.3 million after deducting underwriters’ discounts and offering expenses paid by us of $1.5 million. We used all proceeds to repay a portion of the borrowings under our revolving credit facility. Distributions on the Series B Preferred Units are cumulative from the date of the original issuance and will be payable quarterly in arrears on the 15th day of February, May, August and November of each year, when, as and if declared by the board of directors of our General Partner. The initial distribution on the Series B Preferred Units was paid on November 15, 2016 in an amount equal to $0.5321527 per unit. Distributions on the Series B Preferred Units will accumulate at a rate of 7.9% per annum per $25.00 stated liquidation preference per Series B Preferred Unit. The Series B Preferred Units will rank on parity to our Series A Preferred Units with respect to distributions and distributions upon a liquidation event. In connection with the closing of the Series B Preferred Unit offering, on August 8, 2016, the Partnership executed the Third Amended and Restated Agreement of Limited Partnership of Landmark Infrastructure Partners LP for the purpose of updating the form of Partnership Agreement and defining the preferences, rights, powers and duties of holders of Series B Preferred Units. The Preferred Units represent perpetual equity interests in us, and they have no maturity or mandatory redemption date and will remain outstanding indefinitely unless redeemed by the Partnership or converted into Common Units in connection with a change in control, as described in the Partnership Agreement. As a result, the Preferred Units will not give rise to a claim for payment of a principal amount at a particular date and are not redeemable at the option of investors under any circumstances. Instead, the Preferred Units may be redeemed by us at our option in the event of a change of control or at any time on or after April 4, 2021 for the Series A Preferred Units and on August 8, 2021 for the Series B Preferred Units, in whole or in part, out of funds legally available for such redemption, at a redemption price of $25.00 per unit plus an amount equal to all accumulated and unpaid distributions thereon to the date of redemption, whether or not declared. In addition, if we do not exercise the option to redeem the Preferred Units following certain changes of control, as described in the Partnership Agreement, then the holders of the Preferred Units have the option to convert the Preferred Units into a number of Common Units as set forth in the Partnership Agreement. If we exercise the right to redeem all outstanding Preferred Units, the holders of Preferred Units will not have the conversion right described above. On March 30, 2017, the Partnership established a Series B Preferred Unit at-the-market offering program (the “Series B Preferred Unit ATM Program” and together with the Series A Preferred Unit ATM Program and Common Unit ATM Program the “ATM Programs”) pursuant to which we may sell, from time to time, Series B Preferred Units having an aggregate offering price of up to $50.0 million pursuant to our previously filed and effective registration statement on Form S-3. The net proceeds from sales under the Series B Preferred Unit ATM Program will be used for general Partnership purposes, which may include, among other things, the repayment of indebtedness and to potentially fund future acquisitions. No Series B Preferred Units were issued under our Series B Preferred Unit ATM Program during the years ended December 31, 2018 and 2016. During the year ended December 31, 2017, the Partnership issued 623,015 Series B Preferred Units under our Series B Preferred Unit ATM Program, generating proceeds of approximately $15.6 million before issuance costs. As of December 31, 2018, we have $34.4 million remaining available to be issued under the Series B Preferred Unit ATM Program. Mezzanine Equity On April 2, 2018, the Partnership completed a public offering of 2,000,000 Series C Floating-to-Fixed Rate Cumulative Perpetual Redeemable Convertible Preferred Units (“Series C Preferred Units” and together with the Series A Preferred Units and Series B Preferred Units the “Preferred Units”), representing limited partner interest in the Partnership, at a price of $25.00 per unit. We received net proceeds of approximately $47.5 million after deducting underwriters’ discounts and offering expenses paid by us of $2.5 million. We used substantially all net proceeds to repay a portion of the borrowings under our revolving credit facility. In connection with the closing of the Series C Preferred Units offering, the Partnership executed the Fourth Amended and Restated Agreement of Limited Partnership of Landmark Infrastructure Partners LP (the “Partnership Agreement”) for the purpose of defining the preferences, rights, powers and duties of holders of the Series C Preferred Units. Distributions on the Series C Preferred Units are cumulative from the date of original issue and will be payable quarterly in arrears on the 15th day of February, May, August and November of each year, when, as and if declared by the board of directors of our General Partner. The initial distribution on the Series C Preferred Units was paid on May 15, 2018 in an amount equal to $0.2090 per unit. Distributions accruing from, and including, the date of original issuance and to, but excluding May 15, 2025 will accrue at an annual rate equal to the greater of (i) 7.00% per annum, and (ii) the sum of (a) three-month LIBOR as calculated on each applicable date of determination and (b) 4.698% per annum, based on the $25.00 liquidation preference per Series C Preferred Unit. Distributions accruing on and after May 15, 2025 will accrue at 9.00% per annum of the stated liquidation preference. Holders of Series C Preferred Units, at their option, may, at any time and from time to time, convert some or all of their Series C Preferred Units based on an initial conversion rate of 1.3017 common units per Series C Preferred Unit. In the event of a fundamental change, holder of the Series C Preferred Units, at their option, may convert some or all of their Series C Preferred Units into the greater of (i) a number of common units plus a make-whole premium and (ii) a number of common units equal to the lessor of (a) the liquidation preference divided by the market value of our common units on the effective date of such fundamental change and (b) 11.13 (subject to adjustments). On May 15, 2025, May 15, 2028, and each subsequent five-year anniversary date thereafter (each such date, a “designated redemption date”), each holder of Series C Preferred Units shall have the right (a “redemption right”) to require the Partnership to redeem any or all of the Series C Preferred Units held by such holder outstanding on such designated redemption date at a redemption price equal to the liquidation preference of $25.00, plus all accrued and unpaid distributions to, but not including, in each case out of funds legally available for such payment and to the extent not prohibited by law, the designated redemption date (the “put redemption price”). At our option we may pay the redemption in our common units or cash, subject to certain limitations. At any time on or after May 20, 2025, the Partnership shall have the option to redeem the Series C Preferred Units, in whole or in part, at a redemption price of $25.00 per Series C Preferred Unit plus an amount equal to all accumulated and unpaid distributions thereon to the date of redemption, whether or not declared. The Partnership has classified the Series C Preferred Units as mezzanine equity in the accompanying consolidated balance sheets based upon the terms and conditions of the holder’s redemption option. The Partnership concluded that the Series C Preferred Units are not currently redeemable and are not probable of being redeemed by the holder for cash. If redemption becomes probable, the units will be recorded to redemption value. Distributions The table below summarizes the quarterly distributions related to our quarterly financial results: Total Distribution Distribution Quarter Ended Declaration Date Distribution Date Per Unit (in thousands) Common and Subordinated Units and IDRs March 31, 2016 April 20, 2016 May 13, 2016 $ 0.3300 $ 4,954 June 30, 2016 July 27, 2016 August 15, 2016 0.3325 5,089 September 30, 2016 October 26, 2016 November 15, 2016 0.3375 7,628 December 31, 2016 January 25, 2017 February 15, 2017 0.3500 7,985 March 31, 2017 April 20, 2017 May 15, 2017 0.3525 8,133 June 30, 2017 July 19, 2017 August 14, 2017 0.3550 8,222 September 30, 2017 October 18, 2017 November 14, 2017 0.3575 8,303 December 31, 2017 January 24, 2018 February 14, 2018 0.3675 9,304 March 31, 2018 April 19, 2018 May 15, 2018 0.3675 9,384 June 30, 2018 July 19, 2018 August 14, 2018 0.3675 9,431 September 30, 2018 (1) October 26, 2018 November 14, 2018 0.3675 9,285 December 31, 2018 (1) January 25, 2019 February 14, 2019 0.3675 9,312 Series A Preferred Units June 30, 2016 June 16, 2016 July 15, 2016 $ 0.5611 $ 449 September 30, 2016 September 22, 2016 October 17, 2016 0.5000 432 December 31, 2016 December 16, 2016 January 17, 2017 0.5000 432 March 31, 2017 March 16, 2017 April 17, 2017 0.5000 432 June 30, 2017 June 22, 2017 July 17, 2017 0.5000 555 September 30, 2017 September 21, 2017 October 16, 2017 0.5000 713 December 31, 2017 December 21, 2017 January 16, 2018 0.5000 784 March 31, 2018 March 23, 2018 April 16, 2018 0.5000 797 June 30, 2018 June 21, 2018 July 16, 2018 0.5000 797 September 30, 2018 September 20, 2018 October 15, 2018 0.5000 797 December 31, 2018 December 20, 2018 January 15, 2019 0.5000 797 Series B Preferred Units September 30, 2016 October 20, 2016 November 15, 2016 $ 0.5322 $ 979 December 31, 2016 January 20, 2017 February 15, 2017 0.4938 909 March 31, 2017 April 20, 2017 May 15, 2017 0.4938 934 June 30, 2017 July 19, 2017 August 15, 2017 0.4938 990 September 30, 2017 October 18, 2017 November 15, 2017 0.4938 1,203 December 31, 2017 January 22, 2018 February 15, 2018 0.4938 1,216 March 31, 2018 April 19, 2018 May 15, 2018 0.4938 1,216 June 30, 2018 July 19, 2018 August 15, 2018 0.4938 1,216 September 30, 2018 October 22, 2018 November 15, 2018 0.4938 1,216 December 31, 2018 January 22, 2019 February 15, 2019 0.4938 1,216 Series C Preferred Units June 30, 2018 (2) April 19, 2018 May 15, 2018 $ 0.2090 $ 418 June 30, 2018 July 19, 2018 August 15, 2018 0.4400 880 September 30, 2018 October 22, 2018 November 15, 2018 0.4382 876 December 31, 2018 January 22, 2019 February 15, 2019 0.4571 914 (1) The General Partner irrevocably waived its right to receive the incentive distribution and incentive allocations related to the quarterly distribution for the three months ended September 30, 2018 and December 31, 2018. (2) The first distribution declared by the Partnership for the Series C Preferred Units was prorated for the 43-day period following the closing of the issuance on April 2, 2018. The distribution was paid on May 15, 2018 to unitholders of record as of May 1, 2018.

Net Income (Loss) Per Limited P

Net Income (Loss) Per Limited Partner Unit	12 Months Ended
	Dec. 31, 2018
Earnings Per Unit [Abstract]
Net Income (Loss) Per Limited Partner Unit	13. Net Income (Loss) Per Limited Partner Unit Landmark’s subordinated units and the General Partner’s incentive distribution rights meet the definition of a participating security and therefore we are required to compute income per unit using the two-class method under which any excess of distributions declared over net income shall be allocated to the partners based on their respective sharing of income specified in the Partnership Agreement. Payments made to our unitholders are determined in relation to actual distributions declared and are not based on the net income (loss) allocations used in the calculation of net income (loss) per unit. Net income (loss) per unit applicable to limited partners (including subordinated unitholders) is computed by dividing limited partners’ interest in net income (loss), after deducting any Preferred Unit distributions and General Partner incentive distributions, by the weighted-average number of outstanding common and subordinated units. Diluted net income (loss) per unit includes the effects of potentially dilutive units on our common and subordinated units and Series C Preferred Units. Net income (loss) related to the Drop-down Assets prior to the Partnership’s acquisition dates of each transaction is allocated to the General Partner. Effective February 15, 2018, all of our subordinated units, which were owned by Landmark, were converted on a one-for-one basis into common units. The board of directors of the general partner declared a cash distribution for the quarter ended March 31, 2018 payable on May 15, 2018 to common unitholders of record as of May 1, 2018. The subordinated units were only allocated the excess of distributions declared over net income through the conversion date. The calculation of the undistributed net loss attributable to common and subordinated unitholders for the years ended December 31, 2018, 2017 and 2016 is as follows (in thousands): Year Ended December 31, 2018 2017 2016 Net income attributable to limited partners $ 115,794 $ 19,257 $ 9,873 Less: Distributions declared on Preferred Units (10,630 ) (6,673 ) (2,660 ) General partner's incentive distribution rights (1) (784 ) (488 ) (110 ) Net income attributable to common and subordinated unitholders 104,380 12,096 7,103 Distributions declared on common units (37,022 ) (28,983 ) (21,314 ) Distributions declared on subordinated units — (4,491 ) (4,232 ) Undistributed net income (loss) $ 67,358 $ (21,378 ) $ (18,443 ) (1) The General Partner irrevocably waived its right to receive the incentive distribution and incentive allocations related to the quarterly distribution for the three months ended September 30, 2018 and December 31, 2018. For purposes of determining net income per common unit, the amount otherwise due to the general partner has been referenced as a deemed distribution. The calculation of net income (loss) per unit related to the Partnership for the years ended December 31, 2018, 2017 and 2016 is as follows (in thousands, except per unit data): Year Ended December 31, 2018 2017 2016 Common Subordinated Common Subordinated Common Subordinated Units Units Units Units Units Units Distributions declared $ 37,022 $ — $ 28,983 $ 4,491 $ 21,314 $ 4,232 Undistributed net income (loss) 67,661 (303 ) (18,440 ) (2,938 ) (14,947 ) (3,496 ) Net income (loss) attributable to common and subordinated units - basic 104,683 (303 ) 10,543 1,553 6,367 736 Net income (loss) attributable to subordinated units (303 ) — 1,553 — 736 — Distributions on dilutive preferred units 2,613 — — — — — Net income (loss) attributable to common and subordinated units - diluted $ 106,993 $ (303 ) $ 12,096 $ 1,553 $ 7,103 $ 736 Weighted-average units outstanding: Basic 24,626 387 19,701 3,135 13,986 3,135 Effect of dilutive subordinated units 387 — 3,135 — 3,135 — Effect of dilutive preferred units 1,954 — — — — — Diluted 26,967 387 22,836 3,135 17,121 3,135 Net income (loss) per common and subordinated unit: Basic $ 4.25 $ (0.78 ) $ 0.54 $ 0.50 $ 0.46 $ 0.23 Diluted (1)(2) $ 3.97 $ (0.78 ) $ 0.53 $ 0.50 $ 0.41 $ 0.23 (1) The Partnership Agreement provides that when the subordination period ends, each outstanding subordinated unit will convert into one Common Unit and will thereafter participate pro rata with the other Common Units in distributions of available cash. Effective February 15, 2018, all of the subordinated units, which were owned by Landmark, were converted on a one-for-one basis into Common Units. The diluted effect of Landmark’s subordinated units is reflected using the “if-converted method” which assumes conversion of the subordinated units into Common Units and excludes the subordinated distributions from the calculation, as the “if-converted method” is more dilutive. (2) Diluted earnings per unit takes into account the potential dilutive effect of common units that could be issued by the Partnership in conjunction with the Series C Preferred Units conversion features. Potential common unit equivalents are dilutive for the year ended December 31, 2018 and, as a result, have been included in the determination of diluted net income (loss) per common unit.

Fair Value of Financial Instrum

Fair Value of Financial Instruments	12 Months Ended
	Dec. 31, 2018
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	14. Fair Value of Financial Instruments The fair value for certain financial instruments is derived using a combination of market quotes, pricing models and other valuation techniques that involve significant management judgment. The price transparency of financial instruments is a key determinant of the degree of judgment involved in determining the fair value of the Partnership’s financial instruments. Financial instruments for which actively quoted prices or pricing parameters are available and for which markets contain orderly transaction will generally have a higher degree of price transparency than financial instruments for which markets are inactive or consist of non‑orderly trades. The Partnership evaluates several factors when determining if a market is inactive or when market transactions are not orderly. The following is a summary of the methods and assumptions used by management in estimating the fair value of each class of assets and liabilities for which it is practicable to estimate the fair value: Cash and cash equivalents, rent receivables, net accounts payable and accrued liabilities : The carrying values of these balances approximate their fair values because of the short‑term nature of these instruments. Revolving credit facility: The fair value of the Partnership’s revolving credit facility is estimated using a discounted cash flow analysis based on management’s estimates of current market interest rates for instruments with similar characteristics, including remaining loan term, loan‑to‑value ratio, type of collateral and other credit enhancements. Additionally, since a quoted price in an active market is generally not available for the instrument or an identical instrument, the Partnership measures fair value using a valuation technique that is consistent with the principles of fair value measurement which typically considers what management believes is a market participant rate for a similar instrument. The Partnership classifies these inputs as Level 3 inputs. The fair value of the Partnership’s revolving credit facility is considered to approximate the carrying value because the interest payments are based on LIBOR rates that reset every month. Secured notes : The Partnership determines fair value of its secured notes utilizing various Level 2 sources including quoted prices and indicative quotes (non-binding quotes) from brokers that require judgment to interpret market information. Quotes from brokers require judgment and are based on the brokers’ interpretation of market information, including implied credit spreads for similar borrowings on recent trades or bid/ask prices or quotes from active markets if available. Investments in receivables: The Partnership’s Investments in receivables are presented in the accompanying consolidated balance sheets at their amortized cost net of recorded reserves and not at fair value. The fair values of the receivables were estimated using an internal valuation model that considered the expected cash flow of the receivables and estimated yield requirements by market participants with similar characteristics, including remaining loan term, and credit enhancements. The Partnership classifies these inputs as Level 3 inputs. Interest rate swap agreements: The Partnership’s interest rate swap agreements are presented at fair value on the accompanying consolidated balance sheets. The valuation of these instruments is determined using a proprietary model that utilizes observable and unobservable inputs. A majority of the inputs are observable with the only unobservable inputs relating to the lack of performance risk on the part of the Partnership or the counter party to the instrument. As such, the Partnership classifies these inputs as Level 2 inputs. The proprietary model uses the contractual terms of the derivatives, including the period to maturity, as well as observable market‑based inputs, including the interest rate curves and volatility. The fair values of interest rate swaps are estimated using the market standard methodology of netting the discounted fixed cash payments and the discounted expected variable cash receipts. The variable cash receipts are based on an expectation of interest rates (forward curves) derived from observable market interest rate curves. In addition, credit valuation adjustments, which consider the impact of any credit risk to the contracts, are incorporated in the fair values to account for potential nonperformance risk. The table below summarizes the carrying amounts and fair values of financial instruments which are not carried at fair value on the face of the financial statements (in thousands): December 31, 2018 2017 Carrying amount Fair Value Carrying amount Fair Value Investment in receivables, net $ 18,348 $ 18,867 $ 20,782 $ 20,995 Revolving credit facility 155,000 155,000 304,000 304,000 Secured Notes, net 223,685 224,333 187,249 187,895 Disclosure of the fair values of financial instruments is based on pertinent information available to the Partnership as of the period end and requires a significant amount of judgment. Despite increased capital market and credit market activity, transaction volume for certain financial instruments remains relatively low. This has made the estimation of fair values difficult and, therefore, both the actual results and the Partnership’s estimate of value at a future date could be materially different. For the years ended December 31, 2018 and 2017, the Partnership measured the following assets and liabilities at fair value on a recurring basis (in thousands): December 31, 2018 2017 Derivative Assets (1) $ 4,590 $ 3,159 Derivative Liabilities (1) $ 402 $ — (1) Fair value is calculated using level 2 inputs. Level 2 inputs are quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, and model‑derived valuations in which significant inputs and significant value drivers are observable in active markets.

Related-Party Transactions

Related-Party Transactions	12 Months Ended
	Dec. 31, 2018
Related Party Transactions [Abstract]
Related-Party Transactions	15. Related‑Party Transactions General and Administrative Reimbursement Under the amended omnibus agreement, effective the quarter ended December 31, 2018, we are required to reimburse Landmark for expenses related to certain general and administrative services Landmark provides to us in support of our business, subject to a quarterly cap equal to 3% of our revenue during the current calendar quarter. This cap on expenses will last until the earlier to occur of: (i) the date on which our revenue for the immediately preceding four consecutive fiscal quarters exceeded $120 million and (ii) November 19, 2021. The full amount of general and administrative expenses incurred will be reimbursed by Landmark and reflected on our income statements, and to the extent such general and administrative expenses exceed the cap amount, the amount of such excess will be reflected in our financial statements as a capital contribution rather than as a reduction of our general and administrative expenses, except for expenses that would otherwise be allocated to us, which are not included in the amount of general and administrative expenses. These expenses include salary, bonus, incentive compensation and other amounts paid to persons who perform services for us or on our behalf and expenses allocated to our general partner by its affiliates. For the years ended December 31, 2018, 2017 and 2016, Landmark reimbursed us $2.8 million, $3.5 million and $2.6 million, respectively, for expenses related to certain general and administrative services that exceeded the cap. As of December 31, 2018, $0.1 million is included within due from affiliates related to the fourth quarter general and administrative reimbursement from Landmark including the unconsolidated JV management fees. Additionally, indemnification of $1.0 million related to certain assets is included in capital contributions from Sponsor on the Consolidated and Combined Statement of Equity and Mezzanine Equity. Patent License Agreement We entered into a Patent License Agreement (“License Agreement”) with American Infrastructure Funds, LLC (“AIF”), an affiliate of the controlling member of Landmark. Under the License Agreement, AIF granted us a nonexclusive, perpetual license to practice certain patented methods related to the apparatus and method for combining easements under a master limited partnership. We have agreed to pay AIF a license fee of $50,000 for the second year of the License Agreement, and thereafter, an amount equal to the greater of (i) one‑tenth of one percent (0.1%) of our gross revenue received during such contract year; or (ii) $100,000. During the years ended December 31, 2018, 2017 and 2016, we incurred $0.1 million of license fees related to the AIF patent license agreement. Right of First Offer In accordance with the Partnership’s omnibus agreement, certain other investment funds managed by Landmark had granted us a right of first offer (“ROFO”) on real property interests that they owned or acquired before selling or transferring those assets to any third party. During the year ended December 31, 2018, the Partnership waived its ROFO on certain assets in investment funds managed by Landmark. During the years ended December 31, 2018, 2017 and 2016, the Partnership completed the following ROFO acquisitions: Common Units Total No. of Total Total Issued to Acquired Total No. Investments in Consideration Common Units Landmark Acquisition Date Fund of Tenant Sites Receivables (in millions) Issued and Affiliates January 18, 2018 Fund H 127 — $ 59.9 1,506,421 — Various (1) Fund G 2 — 14.8 221,729 221,729 August 30, 2016 Fund G 386 5 140.3 3,592,430 25,220 (1) In connection with the Fund G drop-down acquisition, the Partnership entered into a contractual obligation to acquire two tenant sites and related real property interests. The Partnership acquired one of these tenant sites and related real property interests on March 31, 2017 for cash consideration of $7.5 million and the remaining additional tenant site for $3.8 million on April 28, 2017. Upon completion of the full acquisition, the Partnership issued to Fund G on April 28, 2017. See further discussion in Note 3, Acquisitions Management Fee In accordance with the limited liability company agreements for Fund G, Landmark or its affiliates were paid a management fee for providing various services to the fund. Management fees totaled $0.2 million for the year ended December 31, 2016. Landmark’s right to receive this management fee had been terminated and will instead reimburse Landmark for certain general and administrative expenses incurred by Landmark pursuant to the omnibus agreement, subject to a cap, as described above. For the year ended December 31, 2016, financial information was retroactively adjusted to include management fees of $0.2 million incurred by Fund G during the period prior to the acquisition by the Partnership. Secured Tenant Site Assets’ Management Fee In connection with the issuance of the Secured Notes, the Partnership entered into applicable management agreements with the General Partner. Pursuant to the applicable management agreements, our General Partner will perform those functions reasonably necessary to maintain, manage and administer the Secured Tenant Site Assets for a monthly management fee equal to (i) 1.5% of the Secured Tenant Site Assets’ operating revenue, as defined by the applicable management agreements for the 2016 and 2017 secured notes and (ii) 0.5% of operating revenue for the 4.38% senior secured notes. The Secured Tenant Site Assets’ management fee to Landmark will be treated as a capital distribution to Landmark. Landmark will reimburse us for the fees paid with the reimbursement treated as a capital contribution. We incurred $53,685, $18,451 and $10,215 of Secured Tenant Site Assets’ management fees during the years ended December 31, 2018, 2017 and 2016, respectively. In connection with the formation of the unconsolidated JV, the JV assumed the 2018 Secured Notes. Pursuant to the applicable management agreement, our General Partner will perform those functions reasonably necessary to maintain, manage and administer the 2018 Secured Tenant Site Assets for a monthly management fee equal to1.5% of the Secured Tenant Site Assets’ operating revenue, subject to a maximum of $46 per tenant site asset. Landmark will reimburse us for the management fees paid by the unconsolidated JV with the reimbursement treated as a capital contribution. For the year ended December 31, 2018, the unconsolidated JV incurred $0.1 million of management fees and included in capital contributions from Sponsor on the Consolidated and Combined Statement of Equity and Mezzanine Equity. Acquisition of Real Property Interests In connection with third party acquisitions, Landmark will be obligated to provide acquisition services to us, including asset identification, underwriting and due diligence, negotiation, documentation and closing, at the reasonable request of our General Partner, but we are under no obligation to utilize such services. We may pay Landmark reasonable fees, as mutually agreed to by Landmark and us, for providing these services. These fees will not be subject to the cap on general and administrative expenses described above. As of December 31, 2018 and 2017, no such fees have been incurred. Penteon Partnership On June 13, 2017, the Partnership and its Sponsor entered into a partnership with Penteon Corporation to deploy a nationwide Low Power Wide Area Network (LPWAN) based on the global open standard called LoRaWAN™ and utilizing the real property interests controlled by the Sponsor and the Partnership. As part of the agreement, the Sponsor owns a warrant to purchase up to approximately 25% of Penteon’s preferred stock. As of December 31, 2018 and 2017, the Partnership incurred zero and $0.2 million in leasing costs related to the deployment of LPWAN on its sites. Incentive Distribution Rights Cash distributions will be made to our General Partner in respect of its ownership of all IDRs, which entitle our General Partner to receive increasing percentages, up to a maximum of 50%, of the available cash we distribute from operating surplus (as defined in our Partnership Agreement) in excess of $0.2875 per unit per quarter. The General Partner irrevocably waived its right to receive the incentive distribution and incentive allocations related to the quarterly distributions for the three months ended September 30, 2018 and December 31, 2018 totaling $0.4 million, which is treated as a deemed contribution in the consolidated and combined statements of equity and mezzanine equity and as a deemed distribution for purposes of determining net income per common unit. During the years ended December 31, 2018, 2017 and 2016, we paid $0.4 million, $0.5 million and $0.1 million of incentive distribution rights, respectively. Due from Affiliates At December 31, 2018 and 2017, the General Partner and affiliates owed $1.4 million and $0.6 million, respectively, to the Partnership primarily for the indemnification related to certain assets, general and administrative reimbursement, unconsolidated JV management fees and for rents received on our behalf, offset by rents received on behalf of the unconsolidated JV.

Segment Information

Segment Information	12 Months Ended
	Dec. 31, 2018
Segment Reporting [Abstract]
Segment Information	16. Segment Information The Partnership had three reportable segments, wireless communication, outdoor advertising, and renewable power generation for all periods presented: The Partnership’s wireless communication segment consists of leasing infrastructure and real property interests and providing financing to companies in the wireless communication industry in the United States, Canada, and Australia. The Partnership’s outdoor advertising segment consists of leasing real property interests to companies in the outdoor advertising industry in the United States, Canada, Australia, and the United Kingdom. The Partnership’s renewable power generation segment consists of leasing real property interests and providing financing to companies in the renewable power industry in the United States. Items that are not included in any of the reportable segments are included in the corporate category. The reportable segments are strategic business units that offer different products and services. They are commonly managed as all three businesses require similar marketing and business strategies. Because our tenant lease arrangements are mostly triple net or effectively triple net, we evaluate our segments based on revenue. We believe this measure provides investors relevant and useful information because it is presented on an unlevered basis. The statements of operations for the reportable segments are as follows: For the year ended December 31, 2018 (in thousands): Renewable Wireless Outdoor Power Communication Advertising Generation Corporate Total Revenue Rental revenue $ 37,879 $ 18,820 $ 8,066 $ — $ 64,765 Expenses Property operating 258 681 208 — 1,147 General and administrative — — — 4,731 4,731 Acquisition-related — — — 3,287 3,287 Amortization 11,902 3,578 672 — 16,152 Impairments 1,169 390 — — 1,559 Total expenses 13,329 4,649 880 8,018 26,876 Total other income and expenses 105,479 242 811 (28,373 ) 78,159 Income (loss) before income tax expense 130,029 14,413 7,997 (36,391 ) 116,048 Income tax expense — — — 227 227 Net income (loss) $ 130,029 $ 14,413 $ 7,997 $ (36,618 ) $ 115,821 For the year ended December 31, 2017 (in thousands): Renewable Wireless Outdoor Power Communication Advertising Generation Corporate Total Revenue Rental revenue $ 33,456 $ 11,367 $ 7,802 $ — $ 52,625 Expenses Property operating 22 228 144 — 394 General and administrative — — — 5,286 5,286 Acquisition-related 22 230 — 1,035 1,287 Amortization 10,898 2,070 569 — 13,537 Impairments 645 203 — — 848 Total expenses 11,587 2,731 713 6,321 21,352 Total other income and expenses 698 144 740 (16,724 ) (15,142 ) Income (loss) before income tax benefit 22,567 8,780 7,829 (23,045 ) 16,131 Income tax benefit — — — (3,145 ) (3,145 ) Net income (loss) $ 22,567 $ 8,780 $ 7,829 $ (19,900 ) $ 19,276 For the year ended December 31, 2016 (in thousands): Renewable Wireless Outdoor Power Communication Advertising Generation Corporate Total Revenue Rental revenue $ 30,440 $ 8,176 $ 2,555 $ — $ 41,171 Expenses Management fees to affiliate 112 83 1 — 196 Property operating 62 29 16 — 107 General and administrative — — — 3,755 3,755 Acquisition-related 244 52 25 2,585 2,906 Amortization 9,649 1,247 295 — 11,191 Impairments 1,130 145 — — 1,275 Total expenses 11,197 1,556 337 6,340 19,430 Total other income and expenses 1,067 — 532 (13,419 ) (11,820 ) Net income (loss) $ 20,310 $ 6,620 $ 2,750 $ (19,759 ) $ 9,921 The Partnership’s total assets by segment were (in thousands): December 31, 2018 2017 Segments Wireless communication $ 433,254 $ 440,139 Outdoor advertising 216,326 175,825 Renewable power generation 112,338 111,482 Corporate assets 24,695 40,553 Total assets $ 786,613 $ 767,999 The following table represents the Partnership’s rental revenues by country (in thousands): December 31, 2018 2017 2016 Country United States $ 60,441 $ 51,144 $ 41,042 United Kingdom 3,356 814 — Australia 910 614 66 Canada 58 53 63 Total rental revenue $ 64,765 $ 52,625 $ 41,171 The following table represents the Partnership’s total assets by country (in thousands): December 31, 2018 2017 Country United States $ 720,331 $ 729,109 United Kingdom 53,850 30,391 Australia 11,830 7,938 Canada 602 561 Total assets $ 786,613 $ 767,999

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2018
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	17. Commitments and Contingencies The Partnership’s commitments and contingencies include customary claims and obligations incurred in the normal course of business. In the opinion of management, these matters will not have a material effect on the Partnership’s combined financial position. There has been consolidation in the wireless communication industry historically that has led to certain lease terminations. The past consolidation in the wireless industry has led to rationalization of wireless networks and reduced demand for tenant sites. We believe the impact of past consolidation is already reflected in our occupancy rates. In April 2018, T-Mobile and Sprint announced a proposed merger. Significant consolidation among our tenants in the wireless communication industry (or our tenants’ sub‑lessees) may result in the decommissioning of certain existing communications sites, because certain portions of these tenants’ (or their sub‑lessees’) networks may be redundant. The impact of any future consolidation in the wireless communication industry and the termination of additional leases in our portfolio would result in lower rental revenue and may lead to impairment of our real property interests or other adverse effects to our business. As of December 31, 2018, the Partnership had approximately $69.1 million of real property interests subject to subordination to lenders of the underlying property. To the extent a lender forecloses on a property the Partnership would take impairment charges for the book value of the asset and no longer be entitled to the revenue associated with the asset. Substantially all of our tenant sites are subject to triple net or effectively triple-net lease arrangements, which require the tenant or the underlying property owner to pay all utilities, property taxes, insurance and repair and maintenance costs. Our overall financial results could be impacted to the extent the owners of the fee interest in the real property or our tenants do not satisfy their obligations.

Tenant Concentration

Tenant Concentration	12 Months Ended
	Dec. 31, 2018
Risks And Uncertainties [Abstract]
Tenant Concentration	18. Tenant Concentration For the years ended December 31, 2018, 2017 and 2016, the Partnership had the following tenant revenue concentrations: Year Ended December 31, Tenant 2018 2017 2016 Clear Channel Outdoor 11.6 % 8.8 % 5.8 % T-Mobile 9.6 % 11.7 % 13.8 % AT&T Mobility 9.3 % 11.0 % 12.6 % Sprint 7.8 % 9.5 % 11.4 % Crown Castle 7.7 % 9.2 % 10.3 % Verizon 7.5 % 8.9 % 9.7 % Most tenants are subsidiaries of these companies but have been aggregated for purposes of showing revenue concentration. Financial information for these companies can be found at www.sec.gov. The loss of any one of our large customers as a result of consolidation, merger, bankruptcy, insolvency, network sharing, roaming, joint development, resale agreements by our customers or otherwise may result in (1) a material decrease in our revenue, (2) uncollectible account receivables, (3) an impairment of our deferred site rental receivables, wireless infrastructure assets, site rental contracts or customer relationships intangible assets, or (4) other adverse effects to our business.

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Income Taxes	19. Income Taxes The Partnership is not a taxable entity for United States federal income tax purposes or for the majority of states that impose an income tax. Taxes on our net income generally are borne by our partners through the allocation of taxable income. Our consolidated REIT Subsidiary files as a corporation for U.S. federal income tax purposes. The REIT Subsidiary has elected to be treated as a REIT and may deduct earnings distributed to stockholders against the income generated by its REIT operations, therefore it does not have any federal income tax liability. Additionally, our wholly owned subsidiary Asset OpCo conducts certain activities that may not generate qualifying income and will be treated as a corporation for U.S. federal and state income tax purposes. In addition, certain subsidiaries of the Partnership are subject to corporate income tax in the foreign jurisdictions where we own assets and generate taxable income. The following information pertains to the Partnership’s income taxes on a consolidated basis. Income before income tax benefit by geographic area is as follows (in thousands): Year Ended December 31, 2018 2017 2016 Domestic $ 116,045 $ 15,259 $ 10,554 Foreign 3 872 (633 ) Total $ 116,048 $ 16,131 $ 9,921 For the years ended December 31, 2018 and 2017, income tax expense (benefit) consisted of the following (in thousands): Year Ended December 31, 2018 2017 Current Domestic $ (10 ) $ — Foreign 15 70 Deferred Domestic 370 (3,215 ) Foreign (148 ) — Income tax expense (benefit) $ 227 $ (3,145 ) For the year ended December 31, 2016, income tax expense (benefit) was zero. The statutory federal income tax rate is 21 percent for the year ended December 31, 2018 and 34 percent for the years ended December 31, 2017 and 2016 and the foreign income tax rates range from 15 percent to 39 percent. The difference between income tax benefit recorded by us and income taxes computed by applying the statutory corporate income tax rates to income before income tax benefit is due to the fact that the majority of our income is not subject to federal, state and foreign income tax as described above. Reconciliation between the U.S. statutory rate and the effective rate from income before income tax benefit is as follows: Year Ended December 31, 2018 2017 Statutory tax rate 21 % 34 % Adjustment to reflect MLP/REIT status (21 )% (29 )% Valuation allowance — % (32 )% Change in tax law — % 9 % Other — % (1 )% Effective tax rate — % (19 )% Deferred income taxes are recorded based on temporary differences between the financial statement carrying amounts and tax basis of assets and liabilities and operating loss carry forwards. Asset OpCo and foreign subsidiaries routinely assesses its ability to realize its deferred tax assets. If an entity concludes that it is more likely than not that some or all of the deferred tax assets will not be realized, the tax asset is reduced by a valuation allowance. The consolidated domestic and foreign deferred tax asset was $3.0 million for the year ended December 31, 2018. In the domestic and foreign jurisdictions, we believe it is more likely than not that the deferred tax assets will be realized and does not currently have a valuation allowance. The deferred tax assets primarily relate to difference between book and tax bases of assets and net operating losses. Asset OpCo generated a domestic NOL, including federal and various states, of $0.4 million, resulting in a deferred tax asset before valuation allowance of $0.1 million for the year ended December 31, 2018. Some federal NOL carryforwards begin to expire in 2035 and certain NOLs carryforward indefinitely. The foreign subsidiaries generated an NOL of $0.4 million, resulting in a deferred tax asset before valuation allowance of $0.1 million for the year ended December 31, 2018. The foreign NOLs carryforward indefinitely. During the year ended December 31, 2018, we recorded an immaterial liability for unrecognized tax benefits. We did not have any significant interest and penalties related to income taxes during the year ended December 31, 2018. The statutory federal income tax rate is 21 percent for valuation of the deferred tax assets and liabilities in future years resulting in a decrease in deferred tax asset of $1.5 million from December 31, 2016 to December 31, 2017. Asset OpCo believes it is more likely than not that the deferred tax asset will be realized and reduced its valuation allowance by $5.3 million, included in income tax benefit for the year ended December 31, 2017, resulting in zero valuation allowance as of December 31, 2017. During the year ended December 31, 2016, Asset OpCo’s acquisition activity and results of operations generated $5.5 million in deferred taxes with a valuation allowance of $5.3 million. For the years ended December 31, 2017 and 2016, there was no deferred tax liability. The change in deferred taxes is primarily a result of differences between book and tax bases of the contributed and purchased assets into Asset OpCo, and operating loss carry forwards. Asset OpCo generated a NOL for the year ended December 31, 2017 and 2016 which can be used to offset taxable income in future and prior years, subject to specified limitations. At December 31, 2017 and 2016 Asset OpCo had an NOL carryforward of $0.1 million and $5.2 million, translating to a deferred tax asset before valuation allowance of less than $0.1 million and $2.1 million, respectively. The federal NOL carryforwards expire beginning in 2035. As of December 31, 2017 and 2016, we had no liability reported for unrecognized tax benefits. We did not have any significant interest or penalties related to income taxes during the years ended December 31, 2017 and 2016.

Supplemental Cash Flow Informat

Supplemental Cash Flow Information	12 Months Ended
	Dec. 31, 2018
Supplemental Cash Flow Information [Abstract]
Supplemental Cash Flow Information	20. Supplemental Cash Flow Information Noncash activities for the years ended December 31, 2018, 2017, and 2016 were as follows (in thousands): Year Ended December 31, 2018 2017 2016 Capital contributions from Sponsor $ 1,733 $ 491 $ 545 Purchase price for acquisitions included in due to Landmark and affiliates 436 196 217 Issuance of common units for Acquired Funds 27,342 3,492 64,664 Unit Exchange Program acquisitions 7,582 3,816 2,639 Fair value adjustment of investments in receivables — — 239 Distributions payable to preferred unitholders 1,710 1,296 800 Offering costs included in accounts payable and accrued liabilities — — 165 Deferred loan costs included in accounts payable and accrued liabilities — 285 235 Purchase price for acquisitions and development activities included in accounts payable 2,878 642 405 Investment in unconsolidated joint venture (65,611 ) — — Total assets contributed to unconsolidated joint venture 157,045 — — Total liabilities contributed to unconsolidated joint venture (125,888 ) — — Deemed contribution by the General Partner 394 — — Deemed distribution to the General Partner (394 ) — — Cash flows related to interest and income taxes paid were as follows (in thousands): Year Ended December 31, 2018 2017 2016 Cash paid for interest $ 20,882 $ 15,797 $ 12,349 Capitalized interest 759 48 — Income taxes paid 76 28 21

Quarterly Financial Data (Unaud

Quarterly Financial Data (Unaudited)	12 Months Ended
	Dec. 31, 2018
Quarterly Financial Information Disclosure [Abstract]
Quarterly Financial Data (Unaudited)	21. Quarterly Financial Data (Unaudited) The following tables summarize quarterly financial data for the years ended December 31, 2018 and 2017 (in thousands, except unit data). Quarterly financial information has been retroactively adjusted for transactions between entities under common control. 2018 Quarter Ended March 31 June 30 September 30 December 31 Total rental revenue $ 15,695 $ 16,796 $ 17,560 $ 14,714 Net income (loss) 6,741 6,105 105,147 (2,172 ) Less: Net income attributable to noncontrolling interest 4 8 8 7 Net income (loss) attributable to limited partners 6,737 6,097 105,139 (2,179 ) Net income (loss) per common and subordinated unit Common units – basic 0.21 0.12 4.06 (0.21 ) Common units – diluted 0.19 0.12 3.71 (0.21 ) Subordinated units – basic and diluted (0.19 ) — — — Cash distribution declared per unit 0.3675 0.3675 0.3675 0.3675 2017 Quarter Ended March 31 June 30 September 30 December 31 Total rental revenue $ 11,841 $ 12,803 $ 13,499 $ 14,482 Net income 3,527 2,677 3,798 9,274 Less: Net income attributable to noncontrolling interest 3 4 4 8 Net income attributable to limited partners 3,524 2,673 3,794 9,266 Net income per common and subordinated unit Common units – basic 0.09 0.05 0.08 0.31 Common units – diluted 0.09 0.05 0.08 0.31 Subordinated units – basic and diluted 0.09 0.05 0.08 0.28 Cash distribution declared per unit 0.3525 0.3550 0.3575 0.3675

Subsequent Event

Subsequent Event	12 Months Ended
	Dec. 31, 2018
Subsequent Events [Abstract]
Subsequent Events	22. Subsequent Events On January 4, 2019, the Partnership completed the sale of one of its real property interests held for sale as of December 31, 2018 for total consideration of $13.5 million. On January 30, 2019, the Partnership amended its Omnibus Agreement to modify the quarterly cap on the general and administrative reimbursement to 3% revenue during the current calendar quarter. This cap on expenses will last until the earlier to occur of: (i) the date on which our revenue for the immediately preceding four consecutive fiscal quarters exceeded $120 million and (ii) November 19, 2021.

SCHEDULE III - REAL ESTATE AND

SCHEDULE III - REAL ESTATE AND ACCUMULATED DEPRECIATION	12 Months Ended
	Dec. 31, 2018
Real Estate And Accumulated Depreciation Disclosure [Abstract]
SCHEDULE III - REAL ESTATE AND ACCUMULATED DEPRECIATION	Landmark Infrastructure Partners LP Schedule III – Real Estate and Accumulated Depreciation (in thousands) December 31, 2018 Gross Amount at Which Carried Initial cost to the Partnership As of December 31, 2018 (1) Building and Building and Accumulated Date Description Location Encumbrances Land Improvements Total Land Improvements Total Depreciation (2) Acquired Wireless Communication Mound House, NV $ — $ 100 $ — $ 100 $ 100 $ — $ 100 $ — 2012 Wireless Communication Las Vegas, NV — 536 — 536 536 — 536 — 2012 Wireless Communication Tombstone, AZ — 594 — 594 594 — 594 — 2012 Outdoor Advertising Rosemont, IL — 971 — 971 971 — 971 — 2013 Outdoor Advertising Gary, IN — 119 — 119 119 — 119 — 2013 Wireless Communication Walnut Creek, CA — 705 — 705 705 — 705 — 2013 Wireless Communication Los Angeles, CA — 331 — 331 331 — 331 — 2013 Outdoor Advertising Largo, FL — 168 — 168 168 — 168 — 2014 Outdoor Advertising Grand Prairie, TX — 301 — 301 301 — 301 — 2014 Outdoor Advertising Terrell, TX — 48 — 48 48 — 48 — 2014 Outdoor Advertising Phoenix, AZ — 321 — 321 321 — 321 — 2014 Outdoor Advertising Houston, TX — 258 — 258 258 — 258 — 2014 Outdoor Advertising Saint Petersburg, FL — 200 — 200 200 — 200 — 2014 Outdoor Advertising Vadnais Heights, MN — 390 — 390 390 — 390 — 2014 Outdoor Advertising West Palm Beach, FL — 94 — 94 94 — 94 — 2014 Outdoor Advertising West Palm Beach, FL — 107 — 107 107 — 107 — 2014 Wireless Communication Orlando, FL — 531 — 531 531 — 531 — 2014 Outdoor Advertising Chattanooga, TN — 73 — 73 73 — 73 — 2014 Outdoor Advertising Monroe, MI — 447 — 447 447 — 447 — 2014 Outdoor Advertising Mary Esther, FL — 22 — 22 22 — 22 — 2015 Renewable Power Generation West Deptford, NJ — 1,813 — 1,813 1,813 — 1,813 — 2015 Wireless Communication Mary Esther, FL — 262 — 262 262 — 262 — 2015 Wireless Communication Milwaukee, WI — 273 — 273 273 — 273 — 2015 Renewable Power Generation West Chicago, IL — 1,275 — 1,275 1,275 — 1,275 — 2015 Renewable Power Generation Joliet, IL — 1,275 — 1,275 1,275 — 1,275 — 2015 Outdoor Advertising Phoenix, AZ — 325 — 325 325 — 325 — 2015 Renewable Power Generation Hubbardston, MA — 1,229 — 1,229 1,229 — 1,229 — 2015 Outdoor Advertising London, UK — 3,566 — 3,566 3,566 — 3,566 — 2016 Renewable Power Generation Valley Center, CA — 880 — 880 880 — 880 — 2016 Outdoor Advertising Homebush West, New South Wales — 478 — 478 478 — 478 — 2016 Outdoor Advertising Golden Square, Victoria — 246 — 246 246 — 246 — 2016 Outdoor Advertising Forbes, New South Wales — 30 — 30 30 — 30 — 2016 Renewable Power Generation Rosamond, CA — 3,215 — 3,215 3,215 — 3,215 — 2016 Renewable Power Generation Rosamond, CA — 41,505 — 41,505 41,505 — 41,505 — 2016 Renewable Power Generation Rosamond, CA — 14,136 — 14,136 14,136 — 14,136 — 2016 Renewable Power Generation Leemore, CA — 11,267 — 11,267 11,267 — 11,267 — 2016 Renewable Power Generation Jacksonville, FL — 731 — 731 731 — 731 — 2016 Renewable Power Generation Florence Township, NJ — 2,200 — 2,200 2,200 — 2,200 — 2017 Wireless Communication Appleton, WI — 594 — 594 594 — 594 — 2017 Outdoor Advertising Glasgow, UK — 3,769 — 3,769 3,769 — 3,769 — 2017 Outdoor Advertising Salford, UK — 263 — 263 263 — 263 — 2017 Wireless Communication Encounter Bay, South Australia — 255 — 255 255 — 255 — 2017 Outdoor Advertising Leeds, UK — 500 — 500 500 — 500 — 2017 Outdoor Advertising Leeds, UK — 2,477 — 2,477 2,477 — 2,477 — 2017 Outdoor Advertising London, UK — 3,205 — 3,205 3,205 — 3,205 — 2017 Renewable Power Generation Pemberton, NJ — 1,092 — 1,092 1,092 — 1,092 — 2017 Outdoor Advertising Liverpool, UK — 648 — 648 648 — 648 — 2017 Outdoor Advertising Barnet, UK — 480 — 480 480 — 480 — 2017 Outdoor Advertising Bristol, UK — 5,556 — 5,556 5,556 — 5,556 — 2017 Wireless Communication Austin, TX — 745 3,701 4,446 745 3,701 4,446 (97 ) 2017 Wireless Communication Charlotte, NC — 106 393 499 106 393 499 (10 ) 2017 Wireless Communication Mars Hill, NC — 117 — 117 117 — 117 — 2017 Renewable Power Generation Ringoes, NJ — 2,113 — 2,113 2,113 — 2,113 — 2017 Renewable Power Generation Tehachapi, CA — — 1,060 1,060 — 1,060 1,060 (36 ) 2017 Outdoor Advertising Orlando, FL — 180 — 180 180 — 180 — 2018 Outdoor Advertising Boston, MA — 480 — 480 480 — 480 — 2018 Outdoor Advertising Dallas, TX — 455 — 455 455 — 455 — 2018 Outdoor Advertising Lithonia, GA — 184 — 184 184 — 184 — 2018 Outdoor Advertising Tampa, FL — 248 — 248 248 — 248 — 2018 Outdoor Advertising Manchester, UK — 170 — 170 170 — 170 — 2018 Outdoor Advertising Wallangarra, Queensland — 24 — 24 24 — 24 — 2018 Outdoor Advertising Capalaba, Queensland — 473 — 473 473 — 473 — 2018 Outdoor Advertising Liverpool, UK — 117 — 117 117 — 117 — 2018 Outdoor Advertising Edinburgh, UK — 113 — 113 113 — 113 — 2018 Outdoor Advertising Cardiff, UK — 3,141 — 3,141 3,141 — 3,141 — 2018 Outdoor Advertising Manchester, UK — 68 — 68 68 — 68 — 2018 Outdoor Advertising Barrow-in-Furness, UK — 84 — 84 84 — 84 — 2018 Outdoor Advertising Milsons Point, New South Wales — 3,523 — 3,523 3,523 — 3,523 — 2018 Outdoor Advertising Stockton-On-Tees, UK — 46 — 46 46 — 46 — 2018 Outdoor Advertising Brighton, MI — 64 — 64 64 — 64 — 2018 Wireless Communication Omaha, NE — 2,661 11,895 14,556 2,661 11,895 14,556 (236 ) 2018 Wireless Communication Hartland, WI — 1,250 18,110 19,360 1,250 18,110 19,360 (244 ) 2018 Wireless Communication Wiley Park, New South Wales — 337 — 337 337 — 337 — 2018 Outdoor Advertising Birkenhead, England — 16 — 16 16 — 16 — 2018 Outdoor Advertising Birmingham, England — 17 — 17 17 — 17 — 2018 Outdoor Advertising Glasgow, UK — 34 — 34 34 — 34 — 2018 Outdoor Advertising Barrhead, England — 19 — 19 19 — 19 — 2018 Outdoor Advertising Manchester, UK — 45 — 45 45 — 45 — 2018 Outdoor Advertising Stretford, England — 26 — 26 26 — 26 — 2018 Outdoor Advertising Barnsley, England — 106 — 106 106 — 106 — 2018 Wireless Communication Franklin, MA — 1,478 — 1,478 1,478 — 1,478 — 2018 Outdoor Advertising London, UK — 1 — 1 1 — 1 — 2018 Total $ — $ 128,302 $ 35,159 $ 163,461 $ 128,302 $ 35,159 $ 163,461 $ (623 ) (1) The aggregate cost of real estate for federal income tax purposes is $221.5 million (unaudited). (2) The Partnership computes depreciation using the straight-line method over 40 years for building and improvements. A summary of activity for real estate and accumulated depreciation follows (in thousands): Year Ended December 31, 2018 2017 2016 Real estate: Balances at beginning of year $ 119,539 $ 88,845 $ 12,887 Acquisitions of real estate 52,290 30,305 75,958 Sales and transfers to assets held for sale (7,044 ) — — Other (1) (1,324 ) 389 — Balances at end of year $ 163,461 $ 119,539 $ 88,845 Accumulated depreciation: Balances at beginning of year $ 13 $ — $ — Depreciation expense 681 13 — Sales and transfers to assets held for sale (71 ) — — Balances at end of year $ 623 $ 13 $ — (1) Represents impact of foreign exchange translation.

Basis of Presentation and Sum_2

Basis of Presentation and Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2018
Basis Of Presentation And Summary Of Significant Accounting Policies [Abstract]
Basis of Presentation and Principles of Consolidated and Combined Financial Statements	Basis of Presentation and Principles of Consolidated and Combined Financial Statements During the years ended December 31, 2018, 2017 and 2016, the Partnership completed one, four and five drop-down acquisitions of 127, 155 and 539 tenant sites and related real property interests, respectively, and zero, two and 14 investment in receivables, respectively, from the Sponsor and affiliates in exchange for total consideration of $59.9 million, $118.3 million and $205.7 million, respectively (the “Drop-down Acquisitions” or “Drop-down Assets”). In accordance with the adoption of ASU No. 2017-01, drop-down acquisitions no longer meet the definition of a business and do not require to be retroactively adjusted. As such, drop-down acquisitions from the Sponsor and affiliates subsequent to March 31, 2017 are accounted for prospectively as transfers of net assets in the period in which the transfer occurs at the net carrying value. Any differences between the cash consideration and the net carrying value of the transfer of net assets is allocated to the General Partner. On an ongoing basis, we evaluate each legal entity that is not wholly owned by us in accordance with the consolidation guidance. The accompanying consolidated financial statements include the accounts of the Partnership, its wholly-owned subsidiaries and those entities in which it has a controlling interest. Investments in entities that the Partnership does not control are accounted for using the equity or cost method, depending upon the Partnership’s ability to exercise significant influence over operating and financial policies. Our results of operations, cash flows, assets and liabilities consist of the consolidated Landmark Infrastructure Partners LP activities and balances with retroactive adjustments of the combined results of operations, cash flows, assets and liabilities of the 2016 Drop-down Assets as if the 2016 Drop-down Acquisitions occurred on the earliest date during which the 2016 Drop-down Assets were under common control. See Note 3, Acquisitions The consolidated and combined financial statements were prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”). All intercompany transactions and account balances have been eliminated. Management believes that the assumptions and estimates used in the preparation of the underlying consolidated and combined financial statements are reasonable. However, the consolidated and combined financial statements herein do not necessarily reflect what the Partnership’s financial position, results of operations, comprehensive income or cash flows would have been if the Partnership had been a stand-alone entity during the periods presented. As a result, historical financial information is not necessarily indicative of the Partnership’s future results of operations, comprehensive income, financial position or cash flows. All references to tenant sites are unaudited.
Use of Estimates	Use of Estimates The preparation of the consolidated and combined financial statements, in conformity with GAAP, requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated and combined financial statements and reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates.
Purchase Accounting for Acquisitions	Purchase Accounting for Acquisitions The Partnership applies the business combination or asset acquisition method to all acquired investments of real property interests for transactions that meet the definition of a business combination or asset acquisition based on the revised framework for determining whether an integrated set of assets meets the definition of a business. The purchase consideration for the real property interests is allocated to the acquired tangible assets, such as land, and the identified intangible assets and liabilities, consisting of the value of perpetual and limited life easements, above-market and below-market leases and in-place leases, based in each case on their fair values. The fair value of the assets acquired and liabilities assumed is typically determined by using the discounted cash flow valuation method using discount rates ranging between 6% and 20%. When determining the fair value of intangible assets acquired, the Partnership estimates the applicable discount rate and the timing and amount of future cash flows. For acquisitions of a business, the determination of the final purchase price allocation and the acquisition-date fair value of identifiable assets acquired and liabilities assumed may extend over more than one period, but no later than 12 months from the acquisition date and result in adjustments to the preliminary estimates recognized in the prior period financial statements. Transaction costs related to the acquisition of a business, including investments in real property interests, are expensed as incurred. Transaction costs related to asset acquisitions are capitalized. Factors considered in estimating the fair value of tangible and intangible assets acquired include information obtained about each asset as a result of Landmark’s pre-acquisition due diligence and its marketing and leasing activities. In order to calculate the estimated in-place lease value, we employed the income approach in accordance with ASC 805 by multiplying the anticipated market absorption period by the market rent at the time of acquisition for each in-place lease agreement. Based on our experience in the industry, we have determined a range of lease execution timelines to be between one and twelve months. For the in-place lease valuation, we consider a lease-up period of four to eight months to be representative of the market. We estimated the fair value of real property interests using the income approach. The discount rates used ranged from 6% to 20%. The value of tenant relationships has not been separated from in-place tenant lease value for the real estate acquired as such value and its consequence to amortization expense is materially consistent with the in-place tenant lease value for these particular acquisitions. Should future acquisitions of real property interests result in allocating material amounts to the value of tenant relationships, an amount would be separately allocated and amortized over the estimated life of the relationship. The value of in-place leases and customer relationship is amortized to expense over the estimated period the tenant is expected to be leasing the site under the existing terms which typically range from 2 to 20 years. If a tenant lease were to be terminated prior to its stated expiration, all unamortized amounts relating to that lease would be impaired. The discount rate associated with each asset varies based on the location of an asset (including demographics and zoning restrictions), and other asset specific characteristics. Market rent for each asset is determined based on location of each asset, asset type, zoning restrictions, ground space necessary for the tenant’s equipment, remaining site capacity, visibility (specifically for billboards), and nearby sites. In allocating the purchase consideration of the identified intangible assets and liabilities of an acquired asset, above-market, below-market and in-place lease values are calculated based on the present value (using a discount rate that reflects the risks associated with the leases acquired) of the difference between (i) the contractual amounts to be paid pursuant to the in-place leases and (ii) management’s estimate of fair market lease rates for the corresponding in-place leases measured over the estimated period the tenant is expected to be leasing the site under the above or below-market terms. The capitalized above-market and below-market lease values are amortized as a decrease or increase, respectively, to rental income over the estimated period the tenant is expected to be leasing the site. All tenant leases obtained by the Partnership through its acquisition of real property interests are generally cancellable, upon 30 to 180 days’ notice by the tenants, with no significant penalty. With respect to below-market leases, consideration is given to any below-market renewal periods. However, for wireless communication assets, we estimated the above/below-market lease value over an analysis period of the earlier of the lease expiration or 10 years based on estimated useful life of the underlying equipment and assets. For outdoor advertising assets, we estimated the above- or below-market lease value over an analysis period of the earlier of the lease expiration or 20 years, based on a longer estimated useful life of 20 years for billboards.
Real Property Interests	Real Property Interests Real property interests consist primarily of land, easements and lease assignments underlying wireless communication, outdoor advertising and renewable power generation infrastructure. The real property interests are typically held as ownership of land or easements to use land, or roof tops, both of which allow us to use the asset for a specific purpose. Real property interests, excluding land, are intangibles that are recorded at cost. Amortization is computed using the straight-line method over the estimated useful lives of the real property interests, which is estimated as the shorter of the revenue generating period of the asset or the term of the real estate rights which range from 12 to 99 years. Real property interests with a perpetual term are not amortized but evaluated periodically for impairment. The Partnership assesses whether there has been an impairment in the value of long-lived assets whenever events or changes in circumstances indicate the carrying amount of an asset may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount to the future estimated net cash flows, undiscounted and without interest, expected to be generated by the asset. If such assets are considered to be impaired, the impairment to be recognized is measured by the amount by which the carrying amount of the assets exceeds the estimated fair value of the assets based upon what a market participant would be willing to pay for the real estate interest. The estimated fair value of the asset group identified for step two testing is based on either Level 3 inputs utilizing the income approach with a market discount rate and estimated cash flows, or Level 2 inputs based upon the sales comparison approach to a similar asset. Assets to be disposed of are reported at the lower of the carrying amount or fair value, less costs to sell utilizing the Level 3 and Level 2 inputs discussed below.
Fair Value of Financial Instruments	Fair Value of Financial Instruments The standard establishes a hierarchy for inputs used in measuring fair value that maximizes the use of observable inputs and minimizes the use of unobservable inputs by requiring that the most observable input be used when available. Observable inputs are inputs that the market participants would use in pricing an asset or liability developed based on market data obtained from sources independent of the Partnership. Unobservable inputs are inputs that reflect the Partnership’s assumptions about what market participants would use in pricing the asset or liability developed based on the best information available in the circumstances. The hierarchy is measured in three levels based on the reliability of inputs: Level 1 – unadjusted quoted prices in active markets that are accessible at the measurement date for identical assets or liabilities. Level 2 – quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, and model-derived valuations in which significant inputs and significant value drivers are observable in active markets; and, Level 3 – prices or valuations derived from other valuation methodologies where little or no market data is available that requires inputs that are both significant to the fair value measurement and unobservable, including pricing models, discounted cash flow models and similar techniques.
Cash and Cash Equivalents	Cash and Cash Equivalents All highly liquid investments with a maturity of three months or less when purchased are considered to be cash and cash equivalents. The Partnership monitors the cash balances in its operating accounts and adjusts the cash balances as appropriate; however, these cash balances could be impacted if the underlying financial institutions fail or are subject to other adverse conditions in the financial markets. To date, the Partnership has experienced no loss or lack of access to cash in the operating accounts.
Restricted Cash	Restricted Cash Restricted cash primarily consists of amounts pledged as collateral to secure obligations. As of December 31, 2018 and 2017, the amount of restricted cash was $3.7 million and $18.7 million. See Note 9, Debt
Accounting for Derivative Financial Instruments and Hedging Activities	Accounting for Derivative Financial Instruments and Hedging Activities The Partnership utilize interest rate swap contracts to manage interest costs and risks associated with changing interest rates. These derivative financial instruments are carried at fair value on the consolidated and combined balance sheets, with the change in such fair value being recorded through earnings as an unrealized gain or loss in the consolidated and combined statements of operations.
Capitalized Development Costs	Capitalized development costs We capitalize project costs, including pre-construction costs, interest, and other costs directly related and essential to the development, pre-construction, or construction of a project. Capitalization of development, pre-construction, and construction costs is required while activities are ongoing to prepare an asset for its intended use. Fluctuations in our development, pre-construction, and construction activities could result in significant changes to total expenses and net income. Costs incurred after a project is substantially complete and ready for its intended use are expensed as incurred. Should development, pre-construction, or construction activity cease, interest and certain other costs would no longer be eligible for capitalization and would be expensed as incurred. Expenditures for repairs and maintenance are expensed as incurred.
Investments in Receivables, Net	Investments in Receivables, Net The Partnership acquired streams of future cash flows associated with real property interests and certain lease arrangements that meet the definition of a financial asset within the wireless communication and renewable power generation industries. For certain investments in receivables, the Partnership has no significant rights or obligations associated with the cash flows other than in certain arrangements, to pass a portion of the cash flows received to the owner of the respective lease. Additionally, certain lease arrangements of real property interests meet the definition of a financial asset and are included in investments in receivables in our financial statements. Receivables are classified as held-for-investment based on management’s intent and ability to hold the receivables for the foreseeable future or to maturity. Receivables held-for-investment are carried at amortized cost and are reduced by a valuation allowance for estimated credit losses as necessary. Interest on receivables is accreted to income over the life of the receivables using the interest method. The interest method is applied on an individual receivable basis when collectability of the future payments, when due in accordance with the contractual terms of the arrangement, is reasonably assured. Receivables are transferred from held-for-investment to held-for-sale when management no longer intends to hold the receivables for the foreseeable future. Receivables held-for-sale are recorded at the lower of cost or fair value. Receivables are placed on non-accrual status when management determines that the collectability of contractual amounts is not reasonably assured. While on non-accrual status, receivables are either accounted for on a cash basis, in which income is recognized only upon receipt of cash, or on a cost-recovery basis, where cash receipts reduce the carrying value of the receivable, based on management’s expectation of future collectability. Allowances are established for receivables based upon an estimate of probable losses on an individual receivable by receivable basis if they are determined to be impaired. Receivables are impaired when it is deemed probable that the Partnership will be unable to collect all amounts when due in accordance with the contractual terms of the loan. An allowance is based upon the Partnership’s assessment of the borrower’s overall financial condition, economic resources, payment record, the prospects for support from any financially responsible guarantors and, if appropriate, the net realizable value of any collateral. These estimates consider all available evidence including the expected future cash flows discounted at the receivable’s effective interest rate, fair value of collateral, general economic conditions and trends, historical and industry loss experience and other relevant factors, as appropriate. On a regular basis, the Partnership assesses investments in receivables for impairment. Internally generated cash flow projections are used to determine if the receivables are expected to be repaid in accordance with the terms of the related agreements. If it is probable that a receivable will not be repaid in accordance with the related agreement, the General Partner considers the receivable impaired. To measure impairment, the General Partner calculates the present value of the expected future cash flows discounted at the original effective interest rate. If the present value is less than the carrying value of the receivable, a specific impairment reserve is recorded for the difference. For the year ended December 31, 2018, the Partnership impaired 16 of its investments in receivables and recognized impairment charges totaling $0.8 million. The investments in receivables were impaired to net realizable value. There was no impairment of investments in receivables during the years ended December 31, 2017 and 2016.
Investment in Unconsolidated Joint Venture	Investment in Unconsolidated Joint Venture The Partnership accounts for its investment in an unconsolidated joint venture using the equity method of accounting. Under the equity method, the investment is initially recorded at fair value and subsequently adjusted for distributions and the Partnership’s proportionate share of equity in the joint venture’s income (loss). The Partnership recognizes its proportionate share of the ongoing income or loss of the unconsolidated joint venture as equity income (loss) from unconsolidated joint venture on the consolidated statements of operations. On a quarterly basis, the Partnership evaluates its investment in an unconsolidated joint venture for other-than-temporary impairments.
Deferred Loan Costs	Deferred Loan Costs Costs incurred associated with the revolving credit facility are capitalized as deferred loan costs and are included in deferred loan costs, net in the consolidated balance sheets in accordance with ASU 2015-15, Interest – Imputation of Interest (Subtopic 835-30): Presentation and Subsequent Measurement of Debt Issuance Costs Associated with Line-of-Credit Arrangements. As a result of the adoption of ASU 2015-03, Simplifying the Presentation of Debt Issuance Costs, costs incurred in obtaining the secured debt facilities are deducted from the carrying amount of the debt liability. The deferred loan costs are amortized to interest expense over the life of the related loan. When facilities are amended and restated that result in an of extinguishment of debt, any unamortized deferred loan costs, as well as charges incurred for the termination, are recorded to interest expense in the period of the amendment and restatement.
Revenue Recognition	Revenue Recognition The Partnership recognizes rental income under operating leases, including rental abatements, lease incentives and contractual fixed increases, if any, from tenants under lease arrangements with minimum fixed and determinable increases on a straight-line basis over the non-cancellable term of the related leases when collectability is reasonably assured. The excess of rents recognized over amounts contractually due pursuant to the underlying leases are recorded as deferred rent assets. The excess of rent payments collected over amounts recognized contractually due pursuant to the underlying lease are recorded as prepaid rents. For the years ended December 31, 2018, 2017, and 2016, leases obtained by the Partnership through its acquisition and ownership of real property interests in the wireless communication industry and the outdoor advertising industry were generally cancelable upon 30 - 180 days’ notice by the tenants with no significant penalty. The Partnership evaluates whether the lease arrangements economically compel the tenant to not cancel the lease in determining the term of the lease by considering various factors such as cancellation rights, availability of alternative sites, and historical cancellation rates. For cancellable leases where the tenant is not economically compelled to continue the lease, the term of the lease is considered to be the non-cancellable period with rental abatements and contractual fixed rate increases recorded in the period the amounts become due and payable. • Wireless Communication – As a result of various factors, including the cancellation rights, ability to find alternative sites, credit risk, and historical cancellation and lease amendment rates, the lease term is generally considered to be the non-cancellable term of the lease of 30 to 180 days. For these leases, rental abatements and contractual fixed increases are recorded in the period the amounts become due and payable. • Outdoor Advertising and Renewable Power Generation – The lease term is generally considered to be the non-cancellable term of the remaining portion of the existing term of the lease. The capitalized above-market and below-market lease values are amortized as a decrease or increase, respectively, to rental income over the estimated period the tenant is expected to be leasing the site. Certain leases provide for the greater of a minimum rent or a percentage of the revenue generated by the tenant (“Contingent Rent”). Contingent rent is recognized when measurable and all possible contingencies have been eliminated. During the years ended December 31, 2018, 2017, and 2016, the Partnership recognized $1.2 million, $1.0 million and $0.6 million of Contingent Rent, respectively.
Rents Receivable, net	Rents Receivable, net Rents receivables consists of tenant receivables arising in the normal course of business. Tenant receivables are uncollateralized customer obligations requiring payment within various time frames not to exceed one year from the invoice date. Tenant receivables are recorded and carried at the amount billable per the applicable lease agreement, less any allowances for doubtful accounts. The amounts due from tenants are periodically reviewed and an allowance for doubtful accounts is maintained for estimated losses resulting from the inability of tenants to make required payments under lease agreements. Judgment is exercised in establishing these allowances with the payment history and the current credit status of tenants considered in developing these estimates. At December 31, 2018 and 2017, the allowance for doubtful accounts was $0.2 million and $0.3 million, respectively.
Income Taxes	Income Taxes The Partnership is generally not subject to federal, state or local income taxes, except for our subsidiary Landmark Infrastructure Asset OpCo LLC (“Asset OpCo”) and our foreign subsidiaries. Asset OpCo conducts certain activities that may not generate qualifying income and will be treated as a corporation for U.S. federal income tax purposes. Each limited partner is responsible for the tax liability, if any, related to its proportionate share of the Partnerships’ taxable income or loss. Asset OpCo and certain foreign wholly owned subsidiaries of the Partnership conduct certain activities in international locations that generate taxable income and will be treated as taxable entities. Additionally, our consolidated REIT subsidiary, Landmark Infrastructure Inc., a Delaware corporation, files as a corporation for U.S. federal income tax purposes. The REIT Subsidiary has elected to be treated as a REIT and we believe that it has operated in a manner that has allowed the REIT Subsidiary to qualify as a REIT for federal income tax purposes, and the REIT Subsidiary intends to continue operating in such manner. If the REIT Subsidiary fails to qualify as a REIT in any taxable year, and is unable to avail itself of certain savings provisions, all of its taxable income would be subject to federal income tax at regular corporate rates. The Partnership follows the requirements of ASC Topic 740, Income Taxes On December 22, 2017, the Tax Cuts and Jobs Act (the “Tax Act”) was signed into law, which made significant changes to U.S. federal income tax laws applicable to businesses and their owners, including REITs and corporations. Concurrently, the SEC issued Staff Accounting Bulletin (“SAB 118”), which provides guidance on accounting for tax effects of the Tax Act. In accordance with SAB 118, a company must reflect the income tax effects of those aspects of the Tax Act for which the accounting under ASC 740 is complete. As of December 31, 2018, the Partnership has completed its assessment of the impact of the Tax Act, including qualification as a real estate business. Our tax expense is reflected in the consolidated financial statements as of December 31, 2017 and there were no tax law adjustments during the year ended December 31, 2018.
Foreign Currency Translation and Transactions	Foreign Currency Translation Assets and liabilities denominated in foreign currencies that are translated into U.S. dollars use exchange rates in effect at the end of the period, and revenues and expenses denominated in foreign currencies that are translated into U.S. dollars use average rates of exchange in effect during the related period. Gains and losses resulting from translation adjustments are included in accumulated other comprehensive income (loss). Foreign Currency Transactions
Risk Management	Risk Management The Partnership is subject to risks incidental to the ownership and investment in real property interests. These risks and uncertainties include the competitive environment in which the Partnership operates – local, regional, and national economic conditions, including consumer confidence, employment rates, and the availability of capital; uncertainties and fluctuations in capital and securities markets; the cyclical and competitive nature of the real estate industry; changes in tax laws and their interpretation; legal proceedings; effect of restrictive covenants in the loan agreements; and the effects of governmental regulation. In the normal course of business, the Partnership encounters economic risk, including interest rate risk, currency risk, credit risk, and market risk. Interest rate risk is the result of movements in the underlying variable component of financing rates. Credit risk is the risk of default that results from an underlying tenant/borrower’s inability or unwillingness to make contractually required payments. Market risk reflects changes in the valuation of real property interests and investments in receivables held by the Partnership.
Concentration of Credit Risk	Concentration of Credit Risk The Partnership’s credit risk relates primarily to rent receivables, investments in receivables, cash and interest rate swap agreements. Cash accounts at each U.S. institution are insured by the Federal Deposit Insurance Corporation up to $250,000. The Partnership has not experienced any losses to date on invested cash. Credit risk associated with interest rate swap agreements arises from the potential failure of counterparties to perform in accordance with the terms of their contracts. The Partnership’s risk management policies define parameters of acceptable market risk and limit exposure to credit risk. Credit exposure resulting from derivative financial instruments is considered in their fair value amounts, among other factors such as the potential adverse position exposure arising from changes over time in interest rates, maturities, and other relevant factors. The Partnership does not anticipate nonperformance by any of its counterparties. The Partnership’s real property interests are primarily located throughout the United States. The ability of the tenants to honor the terms of their respective leases is dependent upon the economic, regulatory, and social factors affecting the communities in which the tenants operate. In certain instances, the Partnership’s position in the real property interest may be subordinate to a mortgage lender on the real property.
Business Segments	Business Segments The FASB accounting guidance with regard to disclosures about segments of an enterprise and related information establishes standards for the manner in which public business enterprises report information about operating segments. The Partnership has three reportable segments, wireless communication, outdoor advertising, and renewable power generation for all periods presented.
Recently Issued Accounting Standards	Recently Issued Accounting Standards Changes to GAAP are established by the FASB in the form of ASUs to the FASB’s Accounting Standard Codification. The Partnership considers the applicability and impact of all ASUs. Newly issued ASUs not listed below are expected to not have any material impact on its combined financial position and results of operations because either the ASU is not applicable or the impact is expected to be immaterial. In June 2018, the FASB issued ASU No. 2018-07, Compensation – Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting In March 2018, the FASB issued ASU No. 2018-05, Income Taxes (Topic 740): Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 118 Income Taxes Basis of Presentation and Summary of Significant Accounting Policies In November 2016, the FASB issued ASU No. 2016-18, Restricted Cash (Topic 230) In June 2016, the FASB issued ASU No. 2016-13, Measurement of Credit Losses on Financial Instruments Financial Instruments – Credit Losses Codification Improvements to Topic 326, Financial Instruments – Credit Losses In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842) In March 2018, the FASB approved an optional practical expedient that would allow lessors to elect, by class of underlying asset, to not separate nonlease components from the related lease components. The practical expedient is limited to circumstances in which both (1) the timing and pattern of revenue recognition are the same for the nonlease component and related lease component and (2) the combined single lease component would be classified as an operating lease. If a lessee makes payments for taxes and insurance directly to a third party on behalf of a lessor, lessors are required to exclude them from variable payments and from recognition in the lessors’ income statements. Otherwise, tenant recoveries for taxes and insurance are classified as additional lease revenue recognized by the lessor on a gross basis in their income statements. The FASB has also clarified that the lease ASU will require an assessment of whether a land easement meets the definition of a lease under the new lease ASU. An entity with land easements that are not accounted for as leases under the current lease accounting standards, however, may elect a practical expedient to exclude those land easements from assessment under the new lease accounting standards (ASU No 2018-01, Leases (Topic 842): Land Easement Practical Expedient for Transition to Topic 842) The Partnership adopted the guidance as of January 1, 2019. We elected to adopt the following practical expedients provided by these ASUs: • Package of practical expedients – requires us not to reevaluate our existing or expired leases as of January 1, 2019, under the new lease accounting ASUs. The election of the package of practical expedients allowed us to not reassess whether any expired or existing contracts are or contain leases and not reassess lease classification for any expired or existing leases that commenced prior to January 1, 2019. The package of practical expedients also allowed an entity to not reassess initial direct costs for any existing leases. The Partnership has not incurred such initial direct costs for leases. Consequently, the adoption of the new lease ASUs had no effect on our accounting of initial direct cost on January 1, 2019. • Optional transition method practical expedient – requires us to apply the new lease ASUs prospectively from the adoption date of January 1, 2019. • Land easements practical expedient – requires us to account for land easements existing as of January 1, 2019, under the accounting standards applied to them prior to January 1, 2019. The Partnership’s land easements are primarily prepaid and included on the Consolidated Balance Sheets in real property interest, the impact of the adoption of the easement related provisions does not have a significant impact on our Consolidated Financial Statements. • Single component practical expedient – requires us to account for lease and nonlease components associated with that lease under the new lease ASUs, if certain criteria are met. Our operating leases commencing or modified after January 1, 2019, for which we are the lessor are expected to qualify for the single component practical expedient accounting. • Short-term leases practical expedient – for our operating leases with a term of 12 months or less in which we are the lessee, this expedient requires us not to record on our balance sheets related lease liabilities and right-of-use assets. While most of our leases are and will continue to be classified as operating leases in which the Partnership is the lessor, the Partnership is the lessee in an insignificant population of leases that have recurring ground lease rental payments. We applied the modified retrospective transition method and practical expedients mentioned above to all leases existing at January 1, 2019. The adoption of these ASUs results in the recognition of right-of-use assets and lease liabilities on the Consolidated Balance Sheets on January 1, 2019 for such operating leases of approximately $7 million, based on the present value of the remaining minimum rental payments using each respective lease term and a corresponding incremental borrowing rate, which is the interest rate that we estimate we would have to pay to borrow on a collateralized basis over a similar term for an amount equal to the lease payments. We have also evaluated the effect of the new lease ASUs on the calculation of our debt covenants as of December 31, 2018 and noted no significant effect on our calculation of our debt covenants. In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606) Revenue from Contracts with Customers (Topic 606)

Acquisitions (Tables)

Acquisitions (Tables)	12 Months Ended
	Dec. 31, 2018
Business Acquisition [Line Items]
Consolidated Statement of Operations	Consolidated statement of operations and comprehensive income for the year ended December 31, 2016 (in thousands): Landmark Pre-Acquisition Infrastructure Landmark results of the Partners LP Infrastructure Drop-down (As Currently Partners LP Acquisitions Reported) Revenue Rental revenue $ 35,208 $ 5,963 $ 41,171 Expenses Management fees to affiliate — 196 196 Property operating 105 2 107 General and administrative 3,755 — 3,755 Acquisition-related 2,648 258 2,906 Amortization 9,703 1,488 11,191 Impairments 1,275 — 1,275 Total expenses 17,486 1,944 19,430 Other income and expenses (7,849 ) (3,971 ) (11,820 ) Net income $ 9,873 $ 48 $ 9,921 Other comprehensive loss (513 ) (4 ) (517 ) Comprehensive income $ 9,360 $ 44 $ 9,404
Consolidated Cash Flows	Consolidated summarized cash flows for the year ended December 31, 2016 (in thousands): Landmark Pre-Acquisition Infrastructure Landmark results of the Partners LP Infrastructure Drop-down (As Currently Partners LP Acquisitions Reported) Net cash provided by operating activities $ 18,982 $ 2,483 $ 21,465 Net cash used in investing activities (156,468 ) — (156,468 ) Net cash provided by (used in) financing activities 141,132 (2,483 ) 138,649
Drop-down Acquisitions
Business Acquisition [Line Items]
Schedule of Acquisitions	The following table presents the Drop-down Acquisitions completed by the Partnership: Number of Tenant Sites Consideration (in millions) Renewable Investments Borrowings Wireless Outdoor Power in and Available Common Acquisition Date Source Communication Advertising Generation Total Receivables Cash Units Total January 18, 2018 Fund H 30 90 7 127 — $ 32.6 $ 27.3 $ 59.9 2018 Acquisitions 30 90 7 127 — $ 32.6 $ 27.3 $ 59.9 December 20, 2017 Sponsor 23 5 1 29 — $ 17.6 $ — $ 17.6 September 28, 2017 Sponsor 39 10 — 49 — 33.3 — 33.3 September 8, 2017 Sponsor (1) — — 1 1 — 1.6 — 1.6 July 28, 2017 Sponsor 30 1 1 32 2 22.0 — 22.0 June 8, 2017 Sponsor (1) 30 9 2 41 — 24.7 — 24.7 April 28, 2017 Sponsor (2) — 1 — 1 — 4.3 — 4.3 April 28, 2017 Fund G (2) — 1 — 1 — 3.8 3.5 7.3 March 31, 2017 Fund G (2) — 1 — 1 — 7.5 — 7.5 2017 Acquisitions 122 28 5 155 2 $ 114.8 $ 3.5 $ 118.3 December 22, 2016 Sponsor 28 5 2 35 2 $ 13.6 $ — $ 13.6 August 30, 2016 Sponsor 28 5 30 63 — 21.1 — 21.1 August 30, 2016 Fund G 214 171 1 386 5 75.6 64.7 140.3 August 1, 2016 Sponsor 37 4 12 53 6 24.4 — 24.4 April 20, 2016 Sponsor 1 — 1 2 1 6.3 — 6.3 2016 Acquisitions 308 185 46 539 14 $ 141.0 $ 64.7 $ 205.7 (1) In connection with the June 8, 2017 drop-down acquisition from our Sponsor, the Partnership entered into a contractual obligation to acquire one tenant site and related real property interest. On September 8, 2017, the Partnership completed the acquisition for cash consideration of $1.6 million. (2) In connection with the August 30, 2016 Fund G drop-down acquisition, the Partnership entered into a contractual obligation to acquire two tenant sites and related real property interests. The Partnership acquired one of these tenant sites and related real property interests on March 31, 2017 for cash consideration of $7.5 million and the remaining tenant site for $3.8 million on April 28, 2017. Upon completion of the full $11.3 million acquisition, the Partnership issued 221,729 Common Units to Fund G on April 28, 2017. Additionally, in connection with the December 22, 2016 drop-down acquisition, the Partnership entered into a contractual obligation to acquire one tenant site and related real property interest. On April 28, 2017 the Partnership completed the acquisition for cash consideration of approximately $3.7 million to the property owner and $0.6 million to Landmark as additional consideration.
Third Party Acquisitions
Business Acquisition [Line Items]
Schedule of Acquisitions	The following table presents direct third-party acquisitions completed by the Partnership: No. of Tenant Sites Consideration (in millions) Renewable Borrowings Wireless Outdoor Power Investments and Available Common Acquisition Description Communication Advertising Generation Total in Receivables Cash Units Total First Quarter UEP 5 1 — 6 — $ — $ 3.2 $ 3.2 Domestic 15 12 — 27 — 21.3 — 21.3 Total 20 13 — 33 — $ 21.3 $ 3.2 $ 24.5 Second Quarter International — 8 — 8 — $ 7.3 $ — $ 7.3 UEP 7 1 — 8 — 0.6 1.8 2.4 Domestic 3 1 — 4 — 21.5 — 21.5 Total 10 10 — 20 — $ 29.4 $ 1.8 $ 31.2 Third Quarter International 2 12 — 14 — $ 14.2 $ — $ 14.2 UEP 10 — — 10 — 0.9 1.8 2.7 Domestic 2 11 — 13 — 2.0 — 2.0 Total 14 23 — 37 — $ 17.1 $ 1.8 $ 18.9 Fourth Quarter International — 8 — 8 — $ 0.2 $ — $ 0.2 UEP 4 — — 4 — — 0.9 0.9 Domestic 1 1 — 2 — 0.1 — 0.1 Total 5 9 — 14 — $ 0.3 $ 0.9 $ 1.2 2018 Total 49 55 — 104 — $ 68.1 $ 7.7 $ 75.8 First Quarter International 3 4 — 7 — $ 3.6 $ — $ 3.6 UEP 1 — — 1 — — 0.1 0.1 Domestic 5 3 — 8 — 1.2 — 1.2 Total 9 7 — 16 — $ 4.8 $ 0.1 $ 4.9 Second Quarter International 2 4 — 6 1 $ 9.0 $ — $ 9.0 UEP 3 1 — 4 — — 1.0 1.0 Domestic 1 — — 1 — 0.5 — 0.5 Total 6 5 — 11 1 $ 9.5 $ 1.0 $ 10.5 Third Quarter International — 2 — 2 — $ 4.1 $ — $ 4.1 Domestic 3 — — 3 — 0.8 — 0.8 Total 3 2 — 5 — $ 4.9 $ — $ 4.9 Fourth Quarter International — 3 — 3 — $ 11.5 $ — $ 11.5 UEP 3 4 — 7 — — 2.7 2.7 Domestic 14 5 2 21 — 6.5 — 6.5 Total 17 12 2 31 — $ 18.0 $ 2.7 $ 20.7 2017 Total 35 26 2 63 1 $ 37.2 $ 3.8 $ 41.0 Second Quarter International 2 — — 2 — $ 0.1 $ — $ 0.1 UEP 3 — — 3 — — 1.6 1.6 Total 5 — — 5 — $ 0.1 $ 1.6 $ 1.7 Third Quarter International 4 1 — 5 — $ 4.4 $ — $ 4.4 UEP 1 — — 1 — — 0.1 0.1 Total 5 1 — 6 — $ 4.4 $ 0.1 $ 4.5 Fourth Quarter International 6 5 — 11 — $ 2.0 $ — $ 2.0 UEP 1 1 — 2 — — 0.9 0.9 Domestic 8 2 6 16 — 76.6 — 76.6 Total 15 8 6 29 — $ 78.6 $ 0.9 $ 79.5 2016 Total 25 9 6 40 — $ 83.1 $ 2.6 $ 85.7

Real Property Interests (Tables

Real Property Interests (Tables)	12 Months Ended
	Dec. 31, 2018
Real Estate [Abstract]
Summary of the Partnership's Real Property Interests	The following summarizes the Partnership’s real property interests (in thousands): December 31, 2018 2017 Land $ 128,302 $ 114,385 Real property interests – perpetual 101,343 114,612 Real property interests – finite life 416,080 481,810 Construction in progress 29,556 7,574 Total land and real property interests 675,281 718,381 Accumulated amortization of real property interests (39,069 ) (37,817 ) Land and net real property interests $ 636,212 $ 680,564
Schedule of Allocation of Estimated Fair Values of the Assets Acquired and Liabilities Assumed	The following table summarizes final allocations for acquisitions made during the years ended December 31, 2018, 2017, and 2016 of estimated fair values of the assets acquired and liabilities assumed (in thousands). Financial information for the year ended December 31, 2016, has been retroactively adjusted for transactions between entities under common control prior to April 1, 2017. See Notes 2 and 3 for additional information. Investments in real In-place lease Above-market Below-market Period Land property interests intangibles lease intangibles lease intangibles Total 2018 $ 16,646 $ 91,314 $ 7,939 $ 1,309 $ (2,031 ) $ 115,177 2017 25,151 107,195 3,781 976 (1,850 ) 135,253 2016 75,959 34,096 4,003 972 (864 ) 114,166
Schedule of Future Estimated Amortization of Finite Lived Real Property Interests	Future estimated aggregate amortization of finite lived real property interests for each of the five succeeding fiscal years and thereafter as of December 31, 2018, are as follows (in thousands): 2019 $ 11,765 2020 11,237 2021 10,646 2022 10,362 2023 10,335 Thereafter 322,666 Total $ 377,011
Schedule of Carrying Amounts of Major Classes of Assets and Liabilities Held for Sale	The carrying amounts of the major classes of assets and liabilities that were classified as held for sale are as follows (in thousands): December 31, 2018 Land $ 1,286 Real property interests, net 5,566 Other intangible assets, net 994 AHFS $ 7,846 Other intangible liabilities, net $ 397 Liabilities associated with AHFS $ 397

Other Intangible Assets and L_2

Other Intangible Assets and Liabilities (Tables)	12 Months Ended
	Dec. 31, 2018
Other Intangible Assets And Liabilities [Abstract]
Summary of Identifiable Intangible Assets, Including Above/Below Market Lease Intangibles	The following summarizes our identifiable intangible assets, including above/below‑market lease intangibles (in thousands): December 31, 2018 2017 Acquired in-place lease Gross amount $ 23,261 $ 20,486 Accumulated amortization (6,237 ) (6,119 ) Net amount $ 17,024 $ 14,367 Acquired above-market leases Gross amount $ 6,542 $ 6,503 Accumulated amortization (2,727 ) (2,886 ) Net amount $ 3,815 $ 3,617 Total other intangible assets, net $ 20,839 $ 17,984 Acquired below-market leases Gross amount $ (17,097 ) $ (21,218 ) Accumulated amortization 7,806 8,385 Total other intangible liabilities, net $ (9,291 ) $ (12,833 )
Future Aggregate Amortization of Intangibles for Each of the Five Succeeding Fiscal Years and Thereafter	Future aggregate amortization of intangibles for each of the five succeeding fiscal years and thereafter as of December 31, 2018 follows (in thousands): Acquired Acquired Acquired in-place above-market below-market leases leases leases 2019 $ 1,725 $ 692 $ (1,580 ) 2020 1,651 532 (1,535 ) 2021 1,589 426 (1,408 ) 2022 1,507 344 (1,284 ) 2023 1,223 308 (831 ) Thereafter 9,329 1,513 (2,653 ) Total $ 17,024 $ 3,815 $ (9,291 )

Future Minimum Rents (Tables)

Future Minimum Rents (Tables)	12 Months Ended
	Dec. 31, 2018
Operating Leases Future Minimum Payments Receivable [Abstract]
Future minimum receipts from tenants	At December 31, 2018, future minimum receipts from tenants on leases with non ‑ 2019 $ 17,250 2020 16,798 2021 16,250 2022 16,050 2023 14,903 Thereafter 54,773 Total $ 136,024

Investments in Receivables (Tab

Investments in Receivables (Tables)	12 Months Ended
	Dec. 31, 2018
Notes Receivable Net [Abstract]
Activity in investments in receivables	The following table reflects the activity in investments in receivables (in thousands): Year Ended December 31, 2018 2017 Investments in receivables – beginning $ 20,782 $ 17,440 Acquisitions — 4,389 Impairments (785 ) — Sales (350 ) — Repayments (1,108 ) (1,180 ) Interest accretion 3 7 Foreign currency translation adjustment (194 ) 126 Investments in receivables – ending $ 18,348 $ 20,782
Annual amounts due	Annual amounts due as of December 31, 2018, are as follows (in thousands): 2019 $ 2,166 2020 2,154 2021 2,212 2022 2,345 2023 2,468 Thereafter 24,263 Total $ 35,608 Interest $ 17,260 Principal 18,348 Total $ 35,608

Investment in Unconsolidated _2

Investment in Unconsolidated Joint Venture (Tables)	12 Months Ended
	Dec. 31, 2018
Equity Method Investments And Joint Ventures [Abstract]
Summary of Partnership Contribution of Assets and Liabilities at Cost to JV	The following table summarizes the Partnership’s contribution of assets and liabilities, at cost, to the unconsolidated JV as of the date of the Transaction (in thousands): Assets Cash, cash equivalents and restricted cash $ 1,549 Real property interests, net 153,028 Other intangible assets, net 2,468 Total assets $ 157,045 Liabilities Secured notes, net $ 122,084 Other intangible liabilities, net 3,046 Other liabilities 758 Total liabilities $ 125,888 Net equity contributed to the unconsolidated joint venture $ 31,157
Summary of Partnership Gain on Contribution of Real Property Interests to JV	The following table summarizes the Partnership’s gain on the contribution of real property interests to the unconsolidated JV as of the date of the Transaction (in thousands): Investment in unconsolidated joint venture $ 65,611 Proceeds from sale of real property interests 65,585 Less: Net equity contributed to the unconsolidated joint venture (31,157 ) Gain on sale of real property interests $ 100,039
Summary of Balance Sheet Information for Unconsolidated JV	The following table summarizes balance sheet information for the unconsolidated JV as of December 31, 2018 (in thousands): Total assets $ 263,228 Total liabilities 128,448 Total equity 134,780 Total liabilities and equity $ 263,228
Summary of Financial Information for Unconsolidated JV	The following table summarizes financial information for the unconsolidated JV from the date of the Transaction to December 31, 2018 (in thousands): Rental revenue $ 3,697 Net income $ 117

Debt (Tables)

Debt (Tables)	12 Months Ended
	Dec. 31, 2018
Debt Disclosure [Abstract]
Schedule of Partnership's debt	The following table summarizes the Partnership’s debt (in thousands): Outstanding Balance Maturity Date December 31, 2018 December 31, 2017 Revolving credit facility November 15, 2023 $ 155,000 $ 304,000 4.38% senior secured notes June 30, 2036 $ 42,058 $ — Series 2017-1 Class A November 15, 2022 (1) 60,900 62,000 Series 2017-1 Class B November 15, 2022 (1) 17,563 18,000 Series 2016-1 Class A June 1, 2021 (2) 86,258 89,171 Series 2016-1 Class B June 1, 2021 (2) 25,100 25,100 Secured Notes $ 231,879 $ 194,271 Discount on Secured Notes (1,454 ) (1,826 ) Deferred loan costs (6,740 ) (5,196 ) Secured Notes, net $ 223,685 $ 187,249 (1) Maturity date reflects anticipated repayment date; final legal maturity is November 15, 2047. (2) Maturity date reflects anticipated repayment date; final legal maturity is July 15, 2046.
Schedule of debt service coverage ratio	Certain information with respect to the 2017 Securitization and the 2016 Securitization is set forth below. The debt service coverage ratio (“DSCR”) is generally calculated as the ratio of annualized net cash flow (as defined in the applicable indenture) to the amount of interest, servicing fees and trustee fees required to be paid over the succeeding 12 months on the principal amount of the Secured Notes, as applicable, that will be outstanding on the payment date following such date of determination. Conditions Limiting Distributions of Excess Cash Issuer or Borrower Notes Issued Cash Trap DSCR Amortization Period 2017 Securitization LMRK Issuer Co. 2 LLC Series 2017-1 Secured Notes, Class A and Class B 1.30x (1) (2) 2016 Securitization LMRK Issuer Co. LLC Series 2016-1 Secured Notes, Class A and Class B 1.30x (1) (2)
Schedule of 'secured notes' annual amounts due	The Secured Notes’ annual principal payment amounts due as of December 31, 2018, are as follows (in thousands): 2019 $ 8,206 2020 10,313 2021 (1) 108,013 2022 72,598 2023 2,714 Thereafter (1) 30,035 Total $ 231,879

Interest Rate Swap Agreements (

Interest Rate Swap Agreements (Tables)	12 Months Ended
	Dec. 31, 2018
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Table Summarizing Terms and Fair Value of Interest Rate Swaps	The following table summarizes the terms and fair value of the Partnerships’ interest rate swap agreements (in thousands, except percentages): Date Notional Effective Maturity Fair Value Asset (Liability) at December 31, Entered Value Fixed Rate Index Date Date 2018 2017 December 24, 2014 $ 70,000 1.52 % 1-month USD LIBOR 12/24/2014 12/24/2018 $ — $ 164 February 5, 2015 25,000 1.29 1-month USD LIBOR 4/13/2015 4/13/2019 102 174 August 24, 2015 50,000 1.74 1-month USD LIBOR 10/1/2015 10/1/2022 1,259 840 March 23, 2016 50,000 1.67 1-month USD LIBOR 12/24/2018 12/24/2021 1,117 761 March 31, 2016 20,000 1.56 1-month USD LIBOR 12/24/2018 12/24/2021 508 364 March 31, 2016 25,000 1.63 1-month USD LIBOR 4/13/2019 4/13/2022 569 418 June 12, 2017 50,000 2.10 1-month USD LIBOR 3/2/2018 9/2/2024 1,035 438 November 15, 2018 £ 38,000 1.49 1-month GBP LIBOR 11/30/2020 11/30/2025 (402 ) — $ 4,188 $ 3,159
Table Summarizing Fair Values of Sensitivity Analysis	The following table summarizes the results of the analysis performed (in thousands): Effects of Change in Interest Rates Date Entered Maturity Date +50 Basis Points -50 Basis Points +100 Basis Points -100 Basis Points February 5, 2015 4/13/2019 134 71 165 40 August 24, 2015 10/1/2022 2,111 400 2,940 (483 ) March 23, 2016 12/24/2021 1,802 429 2,470 (276 ) March 31, 2016 12/24/2021 782 234 1,049 (48 ) March 31, 2016 4/13/2022 918 218 1,258 (143 ) June 12, 2017 9/2/2024 2,291 (262 ) 3,510 (1,598 ) November 15, 2018 11/30/2025 684 (1,675 ) 1,784 (2,939 )

Equity (Tables)

Equity (Tables)	12 Months Ended
	Dec. 31, 2018
Equity [Abstract]
Schedule of changes in the number of units outstanding	The table below summarizes changes in the numbers of units outstanding for the years ended December 31, 2018, 2017 and 2016 (in units): Mezzanine Equity - Series A Series B Series C Common Subordinated Preferred Preferred Preferred Balance at December 31, 2015 11,820,144 3,135,109 — — — Issuance of Series A Preferred Units - April 4, 2016 — — 800,000 — — Issuance of Series B Preferred Units - August 8, 2016 — — — 1,840,000 — Issuance of units in connection with the Acquired Funds 3,592,430 — — — — Issuance of Common Units - October 19, 2016 3,450,000 — — — — Issuance under ATM Programs 405,156 — 63,957 — — Issuance under Unit Exchange Program 172,985 — — — — Unit-based compensation 9,840 — — — — Balance at December 31, 2016 19,450,555 3,135,109 863,957 1,840,000 — Issuance of units to Fund G - April 28, 2017 221,729 — — — — Issuance under ATM Programs 240,426 — 704,445 623,015 — Issuance under Unit Exchange Program 226,950 — — — — Unit-based compensation 6,798 — — — — Balance at December 31, 2017 20,146,458 3,135,109 1,568,402 2,463,015 — Issuance of units to Fund H - January 18, 2018 1,506,421 — — — — Conversion of subordinated units 3,135,109 (3,135,109 ) — — — Issuance of Series C Preferred Units - April 2, 2018 — — — — 2,000,000 Issuance under ATM Programs 27,830 — 24,747 — — Issuance under Unit Exchange Program 508,157 — — — — Unit-based compensation 3,826 — — — — Balance at December 31, 2018 25,327,801 — 1,593,149 2,463,015 2,000,000
Schedule of quarterly distributions related to quarterly financial results	The table below summarizes the quarterly distributions related to our quarterly financial results: Total Distribution Distribution Quarter Ended Declaration Date Distribution Date Per Unit (in thousands) Common and Subordinated Units and IDRs March 31, 2016 April 20, 2016 May 13, 2016 $ 0.3300 $ 4,954 June 30, 2016 July 27, 2016 August 15, 2016 0.3325 5,089 September 30, 2016 October 26, 2016 November 15, 2016 0.3375 7,628 December 31, 2016 January 25, 2017 February 15, 2017 0.3500 7,985 March 31, 2017 April 20, 2017 May 15, 2017 0.3525 8,133 June 30, 2017 July 19, 2017 August 14, 2017 0.3550 8,222 September 30, 2017 October 18, 2017 November 14, 2017 0.3575 8,303 December 31, 2017 January 24, 2018 February 14, 2018 0.3675 9,304 March 31, 2018 April 19, 2018 May 15, 2018 0.3675 9,384 June 30, 2018 July 19, 2018 August 14, 2018 0.3675 9,431 September 30, 2018 (1) October 26, 2018 November 14, 2018 0.3675 9,285 December 31, 2018 (1) January 25, 2019 February 14, 2019 0.3675 9,312 Series A Preferred Units June 30, 2016 June 16, 2016 July 15, 2016 $ 0.5611 $ 449 September 30, 2016 September 22, 2016 October 17, 2016 0.5000 432 December 31, 2016 December 16, 2016 January 17, 2017 0.5000 432 March 31, 2017 March 16, 2017 April 17, 2017 0.5000 432 June 30, 2017 June 22, 2017 July 17, 2017 0.5000 555 September 30, 2017 September 21, 2017 October 16, 2017 0.5000 713 December 31, 2017 December 21, 2017 January 16, 2018 0.5000 784 March 31, 2018 March 23, 2018 April 16, 2018 0.5000 797 June 30, 2018 June 21, 2018 July 16, 2018 0.5000 797 September 30, 2018 September 20, 2018 October 15, 2018 0.5000 797 December 31, 2018 December 20, 2018 January 15, 2019 0.5000 797 Series B Preferred Units September 30, 2016 October 20, 2016 November 15, 2016 $ 0.5322 $ 979 December 31, 2016 January 20, 2017 February 15, 2017 0.4938 909 March 31, 2017 April 20, 2017 May 15, 2017 0.4938 934 June 30, 2017 July 19, 2017 August 15, 2017 0.4938 990 September 30, 2017 October 18, 2017 November 15, 2017 0.4938 1,203 December 31, 2017 January 22, 2018 February 15, 2018 0.4938 1,216 March 31, 2018 April 19, 2018 May 15, 2018 0.4938 1,216 June 30, 2018 July 19, 2018 August 15, 2018 0.4938 1,216 September 30, 2018 October 22, 2018 November 15, 2018 0.4938 1,216 December 31, 2018 January 22, 2019 February 15, 2019 0.4938 1,216 Series C Preferred Units June 30, 2018 (2) April 19, 2018 May 15, 2018 $ 0.2090 $ 418 June 30, 2018 July 19, 2018 August 15, 2018 0.4400 880 September 30, 2018 October 22, 2018 November 15, 2018 0.4382 876 December 31, 2018 January 22, 2019 February 15, 2019 0.4571 914 (1) The General Partner irrevocably waived its right to receive the incentive distribution and incentive allocations related to the quarterly distribution for the three months ended September 30, 2018 and December 31, 2018. (2) The first distribution declared by the Partnership for the Series C Preferred Units was prorated for the 43-day period following the closing of the issuance on April 2, 2018. The distribution was paid on May 15, 2018 to unitholders of record as of May 1, 2018.

Net Income (Loss) Per Limited_2

Net Income (Loss) Per Limited Partner Unit (Tables)	12 Months Ended
	Dec. 31, 2018
Earnings Per Unit [Abstract]
Schedule of calculation of undistributed net loss	The calculation of the undistributed net loss attributable to common and subordinated unitholders for the years ended December 31, 2018, 2017 and 2016 is as follows (in thousands): Year Ended December 31, 2018 2017 2016 Net income attributable to limited partners $ 115,794 $ 19,257 $ 9,873 Less: Distributions declared on Preferred Units (10,630 ) (6,673 ) (2,660 ) General partner's incentive distribution rights (1) (784 ) (488 ) (110 ) Net income attributable to common and subordinated unitholders 104,380 12,096 7,103 Distributions declared on common units (37,022 ) (28,983 ) (21,314 ) Distributions declared on subordinated units — (4,491 ) (4,232 ) Undistributed net income (loss) $ 67,358 $ (21,378 ) $ (18,443 ) (1) The General Partner irrevocably waived its right to receive the incentive distribution and incentive allocations related to the quarterly distribution for the three months ended September 30, 2018 and December 31, 2018. For purposes of determining net income per common unit, the amount otherwise due to the general partner has been referenced as a deemed distribution.
Calculation of net income (loss) per unit	The calculation of net income (loss) per unit related to the Partnership for the years ended December 31, 2018, 2017 and 2016 is as follows (in thousands, except per unit data): Year Ended December 31, 2018 2017 2016 Common Subordinated Common Subordinated Common Subordinated Units Units Units Units Units Units Distributions declared $ 37,022 $ — $ 28,983 $ 4,491 $ 21,314 $ 4,232 Undistributed net income (loss) 67,661 (303 ) (18,440 ) (2,938 ) (14,947 ) (3,496 ) Net income (loss) attributable to common and subordinated units - basic 104,683 (303 ) 10,543 1,553 6,367 736 Net income (loss) attributable to subordinated units (303 ) — 1,553 — 736 — Distributions on dilutive preferred units 2,613 — — — — — Net income (loss) attributable to common and subordinated units - diluted $ 106,993 $ (303 ) $ 12,096 $ 1,553 $ 7,103 $ 736 Weighted-average units outstanding: Basic 24,626 387 19,701 3,135 13,986 3,135 Effect of dilutive subordinated units 387 — 3,135 — 3,135 — Effect of dilutive preferred units 1,954 — — — — — Diluted 26,967 387 22,836 3,135 17,121 3,135 Net income (loss) per common and subordinated unit: Basic $ 4.25 $ (0.78 ) $ 0.54 $ 0.50 $ 0.46 $ 0.23 Diluted (1)(2) $ 3.97 $ (0.78 ) $ 0.53 $ 0.50 $ 0.41 $ 0.23 (1) The Partnership Agreement provides that when the subordination period ends, each outstanding subordinated unit will convert into one Common Unit and will thereafter participate pro rata with the other Common Units in distributions of available cash. Effective February 15, 2018, all of the subordinated units, which were owned by Landmark, were converted on a one-for-one basis into Common Units. The diluted effect of Landmark’s subordinated units is reflected using the “if-converted method” which assumes conversion of the subordinated units into Common Units and excludes the subordinated distributions from the calculation, as the “if-converted method” is more dilutive. (2) Diluted earnings per unit takes into account the potential dilutive effect of common units that could be issued by the Partnership in conjunction with the Series C Preferred Units conversion features. Potential common unit equivalents are dilutive for the year ended December 31, 2018 and, as a result, have been included in the determination of diluted net income (loss) per common unit.

Fair Value of Financial Instr_2

Fair Value of Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2018
Fair Value Disclosures [Abstract]
Table Summarizing the Carrying Amounts and Fair Values of Financial Instruments Which are Not Carried at Fair Value	The table below summarizes the carrying amounts and fair values of financial instruments which are not carried at fair value on the face of the financial statements (in thousands): December 31, 2018 2017 Carrying amount Fair Value Carrying amount Fair Value Investment in receivables, net $ 18,348 $ 18,867 $ 20,782 $ 20,995 Revolving credit facility 155,000 155,000 304,000 304,000 Secured Notes, net 223,685 224,333 187,249 187,895
Assets and Liabilities Measured at Fair Value on a Recurring Basis	For the years ended December 31, 2018 and 2017, the Partnership measured the following assets and liabilities at fair value on a recurring basis (in thousands): December 31, 2018 2017 Derivative Assets (1) $ 4,590 $ 3,159 Derivative Liabilities (1) $ 402 $ — (1) Fair value is calculated using level 2 inputs. Level 2 inputs are quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, and model‑derived valuations in which significant inputs and significant value drivers are observable in active markets.

Related Party Transactions (Tab

Related Party Transactions (Tables)	12 Months Ended
	Dec. 31, 2018
Related Party Transactions [Abstract]
Schedule of Right of First Offer acquisitions	During the years ended December 31, 2018, 2017 and 2016, the Partnership completed the following ROFO acquisitions: Common Units Total No. of Total Total Issued to Acquired Total No. Investments in Consideration Common Units Landmark Acquisition Date Fund of Tenant Sites Receivables (in millions) Issued and Affiliates January 18, 2018 Fund H 127 — $ 59.9 1,506,421 — Various (1) Fund G 2 — 14.8 221,729 221,729 August 30, 2016 Fund G 386 5 140.3 3,592,430 25,220 (1) In connection with the Fund G drop-down acquisition, the Partnership entered into a contractual obligation to acquire two tenant sites and related real property interests. The Partnership acquired one of these tenant sites and related real property interests on March 31, 2017 for cash consideration of $7.5 million and the remaining additional tenant site for $3.8 million on April 28, 2017. Upon completion of the full acquisition, the Partnership issued to Fund G on April 28, 2017.

Segment Information (Tables)

Segment Information (Tables)	12 Months Ended
	Dec. 31, 2018
Segment Reporting [Abstract]
Schedule of Statement of Operations by Reportable Segment	For the year ended December 31, 2018 (in thousands): Renewable Wireless Outdoor Power Communication Advertising Generation Corporate Total Revenue Rental revenue $ 37,879 $ 18,820 $ 8,066 $ — $ 64,765 Expenses Property operating 258 681 208 — 1,147 General and administrative — — — 4,731 4,731 Acquisition-related — — — 3,287 3,287 Amortization 11,902 3,578 672 — 16,152 Impairments 1,169 390 — — 1,559 Total expenses 13,329 4,649 880 8,018 26,876 Total other income and expenses 105,479 242 811 (28,373 ) 78,159 Income (loss) before income tax expense 130,029 14,413 7,997 (36,391 ) 116,048 Income tax expense — — — 227 227 Net income (loss) $ 130,029 $ 14,413 $ 7,997 $ (36,618 ) $ 115,821 For the year ended December 31, 2017 (in thousands): Renewable Wireless Outdoor Power Communication Advertising Generation Corporate Total Revenue Rental revenue $ 33,456 $ 11,367 $ 7,802 $ — $ 52,625 Expenses Property operating 22 228 144 — 394 General and administrative — — — 5,286 5,286 Acquisition-related 22 230 — 1,035 1,287 Amortization 10,898 2,070 569 — 13,537 Impairments 645 203 — — 848 Total expenses 11,587 2,731 713 6,321 21,352 Total other income and expenses 698 144 740 (16,724 ) (15,142 ) Income (loss) before income tax benefit 22,567 8,780 7,829 (23,045 ) 16,131 Income tax benefit — — — (3,145 ) (3,145 ) Net income (loss) $ 22,567 $ 8,780 $ 7,829 $ (19,900 ) $ 19,276 For the year ended December 31, 2016 (in thousands): Renewable Wireless Outdoor Power Communication Advertising Generation Corporate Total Revenue Rental revenue $ 30,440 $ 8,176 $ 2,555 $ — $ 41,171 Expenses Management fees to affiliate 112 83 1 — 196 Property operating 62 29 16 — 107 General and administrative — — — 3,755 3,755 Acquisition-related 244 52 25 2,585 2,906 Amortization 9,649 1,247 295 — 11,191 Impairments 1,130 145 — — 1,275 Total expenses 11,197 1,556 337 6,340 19,430 Total other income and expenses 1,067 — 532 (13,419 ) (11,820 ) Net income (loss) $ 20,310 $ 6,620 $ 2,750 $ (19,759 ) $ 9,921
Schedule of Total Assets by Reportable Segment	The Partnership’s total assets by segment were (in thousands): December 31, 2018 2017 Segments Wireless communication $ 433,254 $ 440,139 Outdoor advertising 216,326 175,825 Renewable power generation 112,338 111,482 Corporate assets 24,695 40,553 Total assets $ 786,613 $ 767,999
Schedule of Rental Revenues by Country	The following table represents the Partnership’s rental revenues by country (in thousands): December 31, 2018 2017 2016 Country United States $ 60,441 $ 51,144 $ 41,042 United Kingdom 3,356 814 — Australia 910 614 66 Canada 58 53 63 Total rental revenue $ 64,765 $ 52,625 $ 41,171
Schedule of Total Assets by Country	The following table represents the Partnership’s total assets by country (in thousands): December 31, 2018 2017 Country United States $ 720,331 $ 729,109 United Kingdom 53,850 30,391 Australia 11,830 7,938 Canada 602 561 Total assets $ 786,613 $ 767,999

Tenant Concentration (Tables)

Tenant Concentration (Tables)	12 Months Ended
	Dec. 31, 2018
Risks And Uncertainties [Abstract]
Schedule of Tenant Revenue Concentrations	Year Ended December 31, Tenant 2018 2017 2016 Clear Channel Outdoor 11.6 % 8.8 % 5.8 % T-Mobile 9.6 % 11.7 % 13.8 % AT&T Mobility 9.3 % 11.0 % 12.6 % Sprint 7.8 % 9.5 % 11.4 % Crown Castle 7.7 % 9.2 % 10.3 % Verizon 7.5 % 8.9 % 9.7 %

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Summary of Income Before Income Tax Benefit by Geographic Area	Income before income tax benefit by geographic area is as follows (in thousands): Year Ended December 31, 2018 2017 2016 Domestic $ 116,045 $ 15,259 $ 10,554 Foreign 3 872 (633 ) Total $ 116,048 $ 16,131 $ 9,921
Summary of Income Tax Benefit	For the years ended December 31, 2018 and 2017, income tax expense (benefit) consisted of the following (in thousands): Year Ended December 31, 2018 2017 Current Domestic $ (10 ) $ — Foreign 15 70 Deferred Domestic 370 (3,215 ) Foreign (148 ) — Income tax expense (benefit) $ 227 $ (3,145 )
Summary of Reconciliation Between U.S. Statutory Rate and Effective Rate from Income Before Income Tax Benefit	Reconciliation between the U.S. statutory rate and the effective rate from income before income tax benefit is as follows: Year Ended December 31, 2018 2017 Statutory tax rate 21 % 34 % Adjustment to reflect MLP/REIT status (21 )% (29 )% Valuation allowance — % (32 )% Change in tax law — % 9 % Other — % (1 )% Effective tax rate — % (19 )%

Supplemental Cash Flow Inform_2

Supplemental Cash Flow Information (Tables)	12 Months Ended
	Dec. 31, 2018
Supplemental Cash Flow Information [Abstract]
Schedule of noncash activities	Noncash activities for the years ended December 31, 2018, 2017, and 2016 were as follows (in thousands): Year Ended December 31, 2018 2017 2016 Capital contributions from Sponsor $ 1,733 $ 491 $ 545 Purchase price for acquisitions included in due to Landmark and affiliates 436 196 217 Issuance of common units for Acquired Funds 27,342 3,492 64,664 Unit Exchange Program acquisitions 7,582 3,816 2,639 Fair value adjustment of investments in receivables — — 239 Distributions payable to preferred unitholders 1,710 1,296 800 Offering costs included in accounts payable and accrued liabilities — — 165 Deferred loan costs included in accounts payable and accrued liabilities — 285 235 Purchase price for acquisitions and development activities included in accounts payable 2,878 642 405 Investment in unconsolidated joint venture (65,611 ) — — Total assets contributed to unconsolidated joint venture 157,045 — — Total liabilities contributed to unconsolidated joint venture (125,888 ) — — Deemed contribution by the General Partner 394 — — Deemed distribution to the General Partner (394 ) — —
Schedule of cash flows related to interest paid	Cash flows related to interest and income taxes paid were as follows (in thousands): Year Ended December 31, 2018 2017 2016 Cash paid for interest $ 20,882 $ 15,797 $ 12,349 Capitalized interest 759 48 — Income taxes paid 76 28 21

Quarterly Financial Data (Una_2

Quarterly Financial Data (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2018
Supplemental Cash Flow Information [Abstract]
Summary of quarterly financial data	2018 Quarter Ended March 31 June 30 September 30 December 31 Total rental revenue $ 15,695 $ 16,796 $ 17,560 $ 14,714 Net income (loss) 6,741 6,105 105,147 (2,172 ) Less: Net income attributable to noncontrolling interest 4 8 8 7 Net income (loss) attributable to limited partners 6,737 6,097 105,139 (2,179 ) Net income (loss) per common and subordinated unit Common units – basic 0.21 0.12 4.06 (0.21 ) Common units – diluted 0.19 0.12 3.71 (0.21 ) Subordinated units – basic and diluted (0.19 ) — — — Cash distribution declared per unit 0.3675 0.3675 0.3675 0.3675 2017 Quarter Ended March 31 June 30 September 30 December 31 Total rental revenue $ 11,841 $ 12,803 $ 13,499 $ 14,482 Net income 3,527 2,677 3,798 9,274 Less: Net income attributable to noncontrolling interest 3 4 4 8 Net income attributable to limited partners 3,524 2,673 3,794 9,266 Net income per common and subordinated unit Common units – basic 0.09 0.05 0.08 0.31 Common units – diluted 0.09 0.05 0.08 0.31 Subordinated units – basic and diluted 0.09 0.05 0.08 0.28 Cash distribution declared per unit 0.3525 0.3550 0.3575 0.3675

Organization (Details)

Organization (Details) - Limited Partners - Common Units - shares	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Partnership Equity
Number of units held (in shares)	25,327,801	20,146,458	19,450,555	11,820,144
Landmark Dividend LLC
Partnership Equity
Number of units held (in shares)	3,415,405

Basis of Presentation and Sum_3

Basis of Presentation and Summary of Significant Accounting Policies - Drop-down Acquisitions (Details) $ in Millions	12 Months Ended
	Dec. 31, 2018USD ($)itemsite	Dec. 31, 2017USD ($)itemsite	Dec. 31, 2016USD ($)itemsite
Acquisitions
Number of tenant sites acquired | site	104	63	40
Investments in Receivables		1
Consideration
Consideration | $	$ 75.8	$ 41	$ 85.7
Acquisition from related party | Landmark, General Partner and affiliates | 2018 Drop-down Acquisitions
Acquisitions
Number of drop-down acquisitions	1
Number of tenant sites acquired | site	127
Investments in Receivables	0
Consideration
Consideration | $	$ 59.9
Acquisition from related party | Landmark, General Partner and affiliates | 2017 Drop-down Acquisitions
Acquisitions
Number of drop-down acquisitions		4
Number of tenant sites acquired | site		155
Investments in Receivables		2
Consideration
Consideration | $		$ 118.3
Acquisition from related party | Landmark, General Partner and affiliates | 2016 Drop-down Acquisitions
Acquisitions
Number of drop-down acquisitions			5
Number of tenant sites acquired | site			539
Investments in Receivables			14
Consideration
Consideration | $	$ 59.9	$ 118.3	$ 205.7

Basis of Presentation and Sum_4

Basis of Presentation and Summary of Significant Accounting Policies - Purchase Accounting for Acquisitions (Details)	12 Months Ended
	Dec. 31, 2018
Wireless Communication
Business Acquisition [Line Items]
Maximum time period to estimate above/below market lease value	10 years
Outdoor Advertising
Business Acquisition [Line Items]
Maximum time period to estimate above/below market lease value	20 years
Outdoor Advertising | Billboards
Business Acquisition [Line Items]
Useful life	20 years
Minimum
Business Acquisition [Line Items]
Lease execution period	1 month
Lease-up period	4 months
Lease term	2 years
Cancellation period	30 days
Maximum
Business Acquisition [Line Items]
Lease execution period	12 months
Lease-up period	8 months
Lease term	20 years
Cancellation period	180 days
Measurement Input, Discount Rate | Minimum
Business Acquisition [Line Items]
Discount rate used to estimate fair values (as a percent)	6
Measurement Input, Discount Rate | Maximum
Business Acquisition [Line Items]
Discount rate used to estimate fair values (as a percent)	20

Basis of Presentation and Sum_5

Basis of Presentation and Summary of Significant Accounting Policies - Real Property Interests (Details)	12 Months Ended
	Dec. 31, 2018
Minimum
Real Estate [Line Items]
Term of real estate rights	12 years
Maximum
Real Estate [Line Items]
Term of real estate rights	99 years

Basis of Presentation and Sum_6

Basis of Presentation and Summary of Significant Accounting Policies - Restricted Cash (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017	Dec. 28, 2017	Dec. 31, 2016	Dec. 31, 2015
Accounting Policies [Abstract]
Restricted cash	$ 3,672	$ 18,672	$ 18,700	$ 2,900	$ 0

Basis of Presentation and Sum_7

Basis of Presentation and Summary of Significant Accounting Policies - Investments in Receivables, Net (Details)	12 Months Ended
	Dec. 31, 2018USD ($)site	Dec. 31, 2017USD ($)	Dec. 31, 2016USD ($)
Impairment
Number of real property interests impaired | site	16
Impairment of investments in receivables | $	$ 800,000	$ 0	$ 0

Basis of Presentation and Sum_8

Basis of Presentation and Summary of Significant Accounting Policies - Revenue Recognition (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Revenue Recognition
Contingent rent recognized	$ 1.2	$ 1	$ 0.6
Minimum
Revenue Recognition
Cancellation period	30 days
Maximum
Revenue Recognition
Cancellation period	180 days

Basis of Presentation and Sum_9

Basis of Presentation and Summary of Significant Accounting Policies - Rents Receivable, Net (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Accounting Policies [Abstract]
Allowance for doubtful accounts	$ 0.2	$ 0.3

Basis of Presentation and Su_10

Basis of Presentation and Summary of Significant Accounting Policies - Concentration of Credit Risk (Details)	Dec. 31, 2018USD ($)
Accounting Changes And Error Corrections [Abstract]
Cash accounts at each institution are insured, amount	$ 250,000

Basis of Presentation and Su_11

Basis of Presentation and Summary of Significant Accounting Policies - Business Segments (Details) - segment	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Accounting Policies [Abstract]
Number of reportable segments	3	3	3

Basis of Presentation and Su_12

Basis of Presentation and Summary of Significant Accounting Policies - Recently Issued Accounting Standards (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017	Dec. 28, 2017	Dec. 31, 2016	Dec. 31, 2015
Accounting Policies [Abstract]
Restricted cash	$ 3,672	$ 18,672	$ 18,700	$ 2,900	$ 0
Operating lease right of use asset and lease liabilities	$ 7,000

Acquisitions - Drop-down Acquis

Acquisitions - Drop-down Acquisitions - General Information (Details) - Landmark, General Partner and affiliates - Acquisition from related party - item	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
2018 Drop-down Acquisitions
Acquisitions
Number of drop-down acquisitions	1
2017 Drop-down Acquisitions
Acquisitions
Number of drop-down acquisitions		4
2016 Drop-down Acquisitions
Acquisitions
Number of drop-down acquisitions			5

Acquisitions - Drop-down Acqu_2

Acquisitions - Drop-down Acquisitions - Summary of Acquisitions Completed (Details) $ in Millions	Sep. 08, 2017USD ($)	Apr. 28, 2017USD ($)	Mar. 31, 2017USD ($)site	Mar. 31, 2017USD ($)site	Dec. 31, 2018USD ($)itemsite	Dec. 31, 2017USD ($)itemsite	Dec. 31, 2016USD ($)itemsite
Acquisitions
Number of tenant sites acquired					104	63	40
Investments in Receivables | item						1
Consideration
Borrowings and Available Cash | $					$ 68.1	$ 37.2	$ 83.1
Common Units Issued to Landmark and Affiliates | $					7.7	3.8	2.6
Total | $					$ 75.8	$ 41	$ 85.7
1-site acquisition
Acquisitions
Number of tenant sites acquired			1
Consideration
Borrowings and Available Cash | $		$ 3.8	$ 7.5
2-site acquisition
Consideration
Borrowings and Available Cash | $		11.3
Wireless Communication
Acquisitions
Number of tenant sites acquired					49	35	25
Outdoor Advertising
Acquisitions
Number of tenant sites acquired					55	26	9
Renewable Power Generation
Acquisitions
Number of tenant sites acquired						2	6
Landmark, General Partner and affiliates | Acquisition from related party | 127-site fund H acquisition
Acquisitions
Number of tenant sites acquired					127
Consideration
Borrowings and Available Cash | $					$ 32.6
Common Units Issued to Landmark and Affiliates | $					27.3
Total | $					$ 59.9
Landmark, General Partner and affiliates | Acquisition from related party | 29-site acquisition
Acquisitions
Number of tenant sites acquired						29
Consideration
Borrowings and Available Cash | $						$ 17.6
Total | $						$ 17.6
Landmark, General Partner and affiliates | Acquisition from related party | 49-site acquisition
Acquisitions
Number of tenant sites acquired						49
Consideration
Borrowings and Available Cash | $						$ 33.3
Total | $						$ 33.3
Landmark, General Partner and affiliates | Acquisition from related party | 1-site sponsor one acquisition
Acquisitions
Number of tenant sites acquired						1
Consideration
Borrowings and Available Cash | $						$ 1.6
Total | $						$ 1.6
Landmark, General Partner and affiliates | Acquisition from related party | 32-site acquisition
Acquisitions
Number of tenant sites acquired						32
Investments in Receivables | item						2
Consideration
Borrowings and Available Cash | $						$ 22
Total | $						$ 22
Landmark, General Partner and affiliates | Acquisition from related party | 41-site acquisition
Acquisitions
Number of tenant sites acquired						41
Consideration
Borrowings and Available Cash | $						$ 24.7
Total | $						$ 24.7
Landmark, General Partner and affiliates | Acquisition from related party | 1-site sponsor one acquisition
Acquisitions
Number of tenant sites acquired						1
Consideration
Borrowings and Available Cash | $						$ 4.3
Total | $						$ 4.3
Landmark, General Partner and affiliates | Acquisition from related party | 1-site fund G acquisition
Acquisitions
Number of tenant sites acquired						1
Consideration
Borrowings and Available Cash | $						$ 3.8
Common Units Issued to Landmark and Affiliates | $						3.5
Total | $						$ 7.3
Landmark, General Partner and affiliates | Acquisition from related party | 2018 Drop-down Acquisitions
Acquisitions
Number of tenant sites acquired					127
Investments in Receivables | item					0
Consideration
Borrowings and Available Cash | $					$ 32.6
Common Units Issued to Landmark and Affiliates | $					27.3
Total | $					59.9
Landmark, General Partner and affiliates | Acquisition from related party | 1-site acquisition
Acquisitions
Number of tenant sites acquired				1		1
Consideration
Borrowings and Available Cash | $	$ 1.6	3.8		$ 7.5		$ 7.5
Total | $						$ 7.5
Landmark, General Partner and affiliates | Acquisition from related party | 2017 Drop-down Acquisitions
Acquisitions
Number of tenant sites acquired						155
Investments in Receivables | item						2
Consideration
Borrowings and Available Cash | $						$ 114.8
Common Units Issued to Landmark and Affiliates | $						3.5
Total | $						118.3
Landmark, General Partner and affiliates | Acquisition from related party | 35-site acquisition
Acquisitions
Number of tenant sites acquired							35
Investments in Receivables | item							2
Consideration
Borrowings and Available Cash | $							$ 13.6
Total | $							$ 13.6
Landmark, General Partner and affiliates | Acquisition from related party | 63-site acquisition
Acquisitions
Number of tenant sites acquired							63
Consideration
Borrowings and Available Cash | $							$ 21.1
Total | $							$ 21.1
Landmark, General Partner and affiliates | Acquisition from related party | 386-site acquisition
Acquisitions
Number of tenant sites acquired							386
Investments in Receivables | item							5
Consideration
Borrowings and Available Cash | $							$ 75.6
Common Units Issued to Landmark and Affiliates | $							64.7
Total | $							$ 140.3
Landmark, General Partner and affiliates | Acquisition from related party | 53-site acquisition
Acquisitions
Number of tenant sites acquired							53
Investments in Receivables | item							6
Consideration
Borrowings and Available Cash | $							$ 24.4
Total | $							$ 24.4
Landmark, General Partner and affiliates | Acquisition from related party | 2-site acquisition
Acquisitions
Number of tenant sites acquired							2
Investments in Receivables | item							1
Consideration
Borrowings and Available Cash | $		$ 11.3					$ 6.3
Total | $							$ 6.3
Landmark, General Partner and affiliates | Acquisition from related party | 2016 Drop-down Acquisitions
Acquisitions
Number of tenant sites acquired							539
Investments in Receivables | item							14
Consideration
Borrowings and Available Cash | $							$ 141
Common Units Issued to Landmark and Affiliates | $							64.7
Total | $					$ 59.9	$ 118.3	$ 205.7
Landmark, General Partner and affiliates | Wireless Communication | Acquisition from related party | 127-site fund H acquisition
Acquisitions
Number of tenant sites acquired					30
Landmark, General Partner and affiliates | Wireless Communication | Acquisition from related party | 29-site acquisition
Acquisitions
Number of tenant sites acquired						23
Landmark, General Partner and affiliates | Wireless Communication | Acquisition from related party | 49-site acquisition
Acquisitions
Number of tenant sites acquired						39
Landmark, General Partner and affiliates | Wireless Communication | Acquisition from related party | 32-site acquisition
Acquisitions
Number of tenant sites acquired						30
Landmark, General Partner and affiliates | Wireless Communication | Acquisition from related party | 41-site acquisition
Acquisitions
Number of tenant sites acquired						30
Landmark, General Partner and affiliates | Wireless Communication | Acquisition from related party | 2018 Drop-down Acquisitions
Acquisitions
Number of tenant sites acquired					30
Landmark, General Partner and affiliates | Wireless Communication | Acquisition from related party | 2017 Drop-down Acquisitions
Acquisitions
Number of tenant sites acquired						122
Landmark, General Partner and affiliates | Wireless Communication | Acquisition from related party | 35-site acquisition
Acquisitions
Number of tenant sites acquired							28
Landmark, General Partner and affiliates | Wireless Communication | Acquisition from related party | 63-site acquisition
Acquisitions
Number of tenant sites acquired							28
Landmark, General Partner and affiliates | Wireless Communication | Acquisition from related party | 386-site acquisition
Acquisitions
Number of tenant sites acquired							214
Landmark, General Partner and affiliates | Wireless Communication | Acquisition from related party | 53-site acquisition
Acquisitions
Number of tenant sites acquired							37
Landmark, General Partner and affiliates | Wireless Communication | Acquisition from related party | 2-site acquisition
Acquisitions
Number of tenant sites acquired							1
Landmark, General Partner and affiliates | Wireless Communication | Acquisition from related party | 2016 Drop-down Acquisitions
Acquisitions
Number of tenant sites acquired							308
Landmark, General Partner and affiliates | Outdoor Advertising | Acquisition from related party | 127-site fund H acquisition
Acquisitions
Number of tenant sites acquired					90
Landmark, General Partner and affiliates | Outdoor Advertising | Acquisition from related party | 29-site acquisition
Acquisitions
Number of tenant sites acquired						5
Landmark, General Partner and affiliates | Outdoor Advertising | Acquisition from related party | 49-site acquisition
Acquisitions
Number of tenant sites acquired						10
Landmark, General Partner and affiliates | Outdoor Advertising | Acquisition from related party | 32-site acquisition
Acquisitions
Number of tenant sites acquired						1
Landmark, General Partner and affiliates | Outdoor Advertising | Acquisition from related party | 41-site acquisition
Acquisitions
Number of tenant sites acquired						9
Landmark, General Partner and affiliates | Outdoor Advertising | Acquisition from related party | 1-site sponsor one acquisition
Acquisitions
Number of tenant sites acquired						1
Landmark, General Partner and affiliates | Outdoor Advertising | Acquisition from related party | 1-site fund G acquisition
Acquisitions
Number of tenant sites acquired						1
Landmark, General Partner and affiliates | Outdoor Advertising | Acquisition from related party | 2018 Drop-down Acquisitions
Acquisitions
Number of tenant sites acquired					90
Landmark, General Partner and affiliates | Outdoor Advertising | Acquisition from related party | 1-site acquisition
Acquisitions
Number of tenant sites acquired						1
Landmark, General Partner and affiliates | Outdoor Advertising | Acquisition from related party | 2017 Drop-down Acquisitions
Acquisitions
Number of tenant sites acquired						28
Landmark, General Partner and affiliates | Outdoor Advertising | Acquisition from related party | 35-site acquisition
Acquisitions
Number of tenant sites acquired							5
Landmark, General Partner and affiliates | Outdoor Advertising | Acquisition from related party | 63-site acquisition
Acquisitions
Number of tenant sites acquired							5
Landmark, General Partner and affiliates | Outdoor Advertising | Acquisition from related party | 386-site acquisition
Acquisitions
Number of tenant sites acquired							171
Landmark, General Partner and affiliates | Outdoor Advertising | Acquisition from related party | 53-site acquisition
Acquisitions
Number of tenant sites acquired							4
Landmark, General Partner and affiliates | Outdoor Advertising | Acquisition from related party | 2016 Drop-down Acquisitions
Acquisitions
Number of tenant sites acquired							185
Landmark, General Partner and affiliates | Renewable Power Generation | Acquisition from related party | 127-site fund H acquisition
Acquisitions
Number of tenant sites acquired					7
Landmark, General Partner and affiliates | Renewable Power Generation | Acquisition from related party | 29-site acquisition
Acquisitions
Number of tenant sites acquired						1
Landmark, General Partner and affiliates | Renewable Power Generation | Acquisition from related party | 1-site sponsor one acquisition
Acquisitions
Number of tenant sites acquired						1
Landmark, General Partner and affiliates | Renewable Power Generation | Acquisition from related party | 32-site acquisition
Acquisitions
Number of tenant sites acquired						1
Landmark, General Partner and affiliates | Renewable Power Generation | Acquisition from related party | 41-site acquisition
Acquisitions
Number of tenant sites acquired						2
Landmark, General Partner and affiliates | Renewable Power Generation | Acquisition from related party | 2018 Drop-down Acquisitions
Acquisitions
Number of tenant sites acquired					7
Landmark, General Partner and affiliates | Renewable Power Generation | Acquisition from related party | 2017 Drop-down Acquisitions
Acquisitions
Number of tenant sites acquired						5
Landmark, General Partner and affiliates | Renewable Power Generation | Acquisition from related party | 35-site acquisition
Acquisitions
Number of tenant sites acquired							2
Landmark, General Partner and affiliates | Renewable Power Generation | Acquisition from related party | 63-site acquisition
Acquisitions
Number of tenant sites acquired							30
Landmark, General Partner and affiliates | Renewable Power Generation | Acquisition from related party | 386-site acquisition
Acquisitions
Number of tenant sites acquired							1
Landmark, General Partner and affiliates | Renewable Power Generation | Acquisition from related party | 53-site acquisition
Acquisitions
Number of tenant sites acquired							12
Landmark, General Partner and affiliates | Renewable Power Generation | Acquisition from related party | 2-site acquisition
Acquisitions
Number of tenant sites acquired							1
Landmark, General Partner and affiliates | Renewable Power Generation | Acquisition from related party | 2016 Drop-down Acquisitions
Acquisitions
Number of tenant sites acquired							46

Acquisitions - Drop-down Acqu_3

Acquisitions - Drop-down Acquisitions - Summary of Acquisitions Completed - Additional Information (Details) $ in Millions	Sep. 08, 2017USD ($)	Apr. 28, 2017USD ($)shares	Mar. 31, 2017USD ($)site	Mar. 31, 2017USD ($)site	Dec. 31, 2018USD ($)siteshares	Dec. 31, 2017USD ($)site	Dec. 31, 2016USD ($)site	Jun. 08, 2017site	Aug. 30, 2016site
Acquisitions
Number of tenant sites obligated to acquire | site					2
Cash consideration | $					$ 68.1	$ 37.2	$ 83.1
Number of tenant sites acquired | site					104	63	40
Common units issued to Fund G | shares		221,729
1-site acquisition
Acquisitions
Cash consideration | $		$ 3.8	$ 7.5
Number of tenant sites acquired | site			1
2-site acquisition
Acquisitions
Cash consideration | $		$ 11.3
Landmark, General Partner and affiliates | 2-site acquisition
Acquisitions
Common units issued to Fund G | shares					221,729
Landmark, General Partner and affiliates | Acquisition from related party
Acquisitions
Number of tenant sites obligated to acquire | site									2
Common units issued to Fund G | shares		221,729
Landmark, General Partner and affiliates | Acquisition from related party | 1-site acquisition
Acquisitions
Number of tenant sites obligated to acquire | site								1
Cash consideration | $	$ 1.6	$ 3.8		$ 7.5		$ 7.5
Number of tenant sites acquired | site				1		1
Landmark, General Partner and affiliates | Acquisition from related party | Property Owner
Acquisitions
Cash consideration | $		3.7
Landmark, General Partner and affiliates | Acquisition from related party | Landmark Acquisition
Acquisitions
Cash consideration | $		0.6
Landmark, General Partner and affiliates | Acquisition from related party | 2-site acquisition
Acquisitions
Cash consideration | $		$ 11.3					$ 6.3
Number of tenant sites acquired | site							2

Acquisitions - Drop-down Acqu_4

Acquisitions - Drop-down Acquisitions - Consolidated Statement of Operations and Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Revenue
Rental revenue	$ 14,714	$ 17,560	$ 16,796	$ 15,695	$ 14,482	$ 13,499	$ 12,803	$ 11,841	$ 64,765	$ 52,625	$ 41,171
Expenses
Management fees to affiliate											196
Property operating									1,147	394	107
General and administrative									4,731	5,286	3,755
Acquisition-related									3,287	1,287	2,906
Amortization									16,152	13,537	11,191
Impairments									1,559	848	1,275
Total expenses									26,876	21,352	19,430
Other income and expenses									78,159	(15,142)	(11,820)
Net income									115,821	19,276	9,921
Other comprehensive income (loss)									(3,774)	1,477	(517)
Comprehensive income									$ 112,047	$ 20,753	9,404
Scenario, Previously Reported
Revenue
Rental revenue											35,208
Expenses
Property operating											105
General and administrative											3,755
Acquisition-related											2,648
Amortization											9,703
Impairments											1,275
Total expenses											17,486
Other income and expenses											(7,849)
Net income											9,873
Other comprehensive income (loss)											(513)
Comprehensive income											9,360
Drop-down Acquisitions | Landmark, General Partner and affiliates | Acquisition from related party | Restatement Adjustment
Revenue
Rental revenue											5,963
Expenses
Management fees to affiliate											196
Property operating											2
Acquisition-related											258
Amortization											1,488
Total expenses											1,944
Other income and expenses											(3,971)
Net income											48
Other comprehensive income (loss)											(4)
Comprehensive income											$ 44

Acquisitions - Drop-down Acqu_5

Acquisitions - Drop-down Acquisitions - Consolidated Summarized Cash Flows (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016USD ($)
Cash flows
Net cash provided by operating activities	$ 21,465
Net cash used in investing activities	(156,468)
Net cash provided by (used in) financing activities	138,649
Scenario, Previously Reported
Cash flows
Net cash provided by operating activities	18,982
Net cash used in investing activities	(156,468)
Net cash provided by (used in) financing activities	141,132
Drop-down Acquisitions | Restatement Adjustment | Landmark, General Partner and affiliates | Acquisition from related party
Cash flows
Net cash provided by operating activities	2,483
Net cash provided by (used in) financing activities	$ (2,483)

Acquisitions - Third Party Acqu

Acquisitions - Third Party Acquisitions - General Information (Details) - shares	Apr. 28, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Acquisitions
Number of common units in connection with acquisition (in shares)	221,729
UEP
Acquisitions
Number of common units in connection with acquisition (in shares)		5,000,000	5,000,000	5,000,000

Acquisitions - Third Party Ac_2

Acquisitions - Third Party Acquisitions - Summary of Acquisitions Completed (Details) $ in Millions	3 Months Ended											12 Months Ended
	Dec. 31, 2018USD ($)site	Sep. 30, 2018USD ($)site	Jun. 30, 2018USD ($)site	Mar. 31, 2018USD ($)site	Dec. 31, 2017USD ($)site	Sep. 30, 2017USD ($)site	Jun. 30, 2017USD ($)itemsite	Mar. 31, 2017USD ($)site	Dec. 31, 2016USD ($)site	Sep. 30, 2016USD ($)site	Jun. 30, 2016USD ($)site	Dec. 31, 2018USD ($)site	Dec. 31, 2017USD ($)itemsite	Dec. 31, 2016USD ($)site
Acquisitions
Number of tenant sites acquired												104	63	40
Consideration
Borrowings and Available Cash | $												$ 68.1	$ 37.2	$ 83.1
Common Units Issued to Landmark and Affiliates | $												7.7	3.8	2.6
Consideration | $												$ 75.8	$ 41	$ 85.7
Investments in Receivables | item													1
International
Acquisitions
Number of tenant sites acquired	8	14	8		3	2	6	7	11	5	2
Consideration
Borrowings and Available Cash | $	$ 0.2	$ 14.2	$ 7.3		$ 11.5	$ 4.1	$ 9	$ 3.6	$ 2	$ 4.4	$ 0.1
Consideration | $	$ 0.2	$ 14.2	$ 7.3		$ 11.5	$ 4.1	$ 9	$ 3.6	$ 2	$ 4.4	$ 0.1
Investments in Receivables | item							1
Unit Exchange Acquisitions
Acquisitions
Number of tenant sites acquired	4	10	8	6	7		4	1	2	1	3
Consideration
Borrowings and Available Cash | $		$ 0.9	$ 0.6
Common Units Issued to Landmark and Affiliates | $	$ 0.9	1.8	1.8	$ 3.2	$ 2.7		$ 1	$ 0.1	$ 0.9	$ 0.1	$ 1.6
Consideration | $	$ 0.9	$ 2.7	$ 2.4	$ 3.2	$ 2.7		$ 1	$ 0.1	$ 0.9	$ 0.1	$ 1.6
Domestic
Acquisitions
Number of tenant sites acquired	2	13	4	27	21	3	1	8	16
Consideration
Borrowings and Available Cash | $	$ 0.1	$ 2	$ 21.5	$ 21.3	$ 6.5	$ 0.8	$ 0.5	$ 1.2	$ 76.6
Consideration | $	$ 0.1	$ 2	$ 21.5	$ 21.3	$ 6.5	$ 0.8	$ 0.5	$ 1.2	$ 76.6
2018 Direct Third Party Acquisitions, First Quarter
Acquisitions
Number of tenant sites acquired				33
Consideration
Borrowings and Available Cash | $				$ 21.3
Common Units Issued to Landmark and Affiliates | $				3.2
Consideration | $				$ 24.5
2017 Direct Third Party Acquisitions, First Quarter
Acquisitions
Number of tenant sites acquired								16
Consideration
Borrowings and Available Cash | $								$ 4.8
Common Units Issued to Landmark and Affiliates | $								0.1
Consideration | $								$ 4.9
2018 Direct Third Party Acquisitions, Second Quarter
Acquisitions
Number of tenant sites acquired			20
Consideration
Borrowings and Available Cash | $			$ 29.4
Common Units Issued to Landmark and Affiliates | $			1.8
Consideration | $			$ 31.2
2017 Direct Third Party Acquisitions, Second Quarter
Acquisitions
Number of tenant sites acquired							11
Consideration
Borrowings and Available Cash | $							$ 9.5
Common Units Issued to Landmark and Affiliates | $							1
Consideration | $							$ 10.5
Investments in Receivables | item							1
2018 Direct Third Party Acquisitions, Third Quarter
Acquisitions
Number of tenant sites acquired		37
Consideration
Borrowings and Available Cash | $		$ 17.1
Common Units Issued to Landmark and Affiliates | $		1.8
Consideration | $		$ 18.9
2017 Direct Third Party Acquisitions, Third Quarter
Acquisitions
Number of tenant sites acquired						5
Consideration
Borrowings and Available Cash | $						$ 4.9
Consideration | $						$ 4.9
2018 Direct Third Party Acquisitions, Fourth Quarter
Acquisitions
Number of tenant sites acquired	14
Consideration
Borrowings and Available Cash | $	$ 0.3
Common Units Issued to Landmark and Affiliates | $	0.9
Consideration | $	$ 1.2
2017 Direct Third Party Acquisitions, Fourth Quarter
Acquisitions
Number of tenant sites acquired					31
Consideration
Borrowings and Available Cash | $					$ 18
Common Units Issued to Landmark and Affiliates | $					2.7
Consideration | $					$ 20.7
2016 Direct Third Party Acquisitions, Second Quarter
Acquisitions
Number of tenant sites acquired											5
Consideration
Borrowings and Available Cash | $											$ 0.1
Common Units Issued to Landmark and Affiliates | $											1.6
Consideration | $											$ 1.7
2016 Direct Third Party Acquisitions, Third Quarter
Acquisitions
Number of tenant sites acquired										6
Consideration
Borrowings and Available Cash | $										$ 4.4
Common Units Issued to Landmark and Affiliates | $										0.1
Consideration | $										$ 4.5
2016 Direct Third Party Acquisitions, Fourth Quarter
Acquisitions
Number of tenant sites acquired									29
Consideration
Borrowings and Available Cash | $									$ 78.6
Common Units Issued to Landmark and Affiliates | $									0.9
Consideration | $									$ 79.5
Wireless Communication
Acquisitions
Number of tenant sites acquired												49	35	25
Wireless Communication | International
Acquisitions
Number of tenant sites acquired		2					2	3	6	4	2
Wireless Communication | Unit Exchange Acquisitions
Acquisitions
Number of tenant sites acquired	4	10	7	5	3		3	1	1	1	3
Wireless Communication | Domestic
Acquisitions
Number of tenant sites acquired	1	2	3	15	14	3	1	5	8
Wireless Communication | 2018 Direct Third Party Acquisitions, First Quarter
Acquisitions
Number of tenant sites acquired				20
Wireless Communication | 2017 Direct Third Party Acquisitions, First Quarter
Acquisitions
Number of tenant sites acquired								9
Wireless Communication | 2018 Direct Third Party Acquisitions, Second Quarter
Acquisitions
Number of tenant sites acquired			10
Wireless Communication | 2017 Direct Third Party Acquisitions, Second Quarter
Acquisitions
Number of tenant sites acquired							6
Wireless Communication | 2018 Direct Third Party Acquisitions, Third Quarter
Acquisitions
Number of tenant sites acquired		14
Wireless Communication | 2017 Direct Third Party Acquisitions, Third Quarter
Acquisitions
Number of tenant sites acquired						3
Wireless Communication | 2018 Direct Third Party Acquisitions, Fourth Quarter
Acquisitions
Number of tenant sites acquired	5
Wireless Communication | 2017 Direct Third Party Acquisitions, Fourth Quarter
Acquisitions
Number of tenant sites acquired					17
Wireless Communication | 2016 Direct Third Party Acquisitions, Second Quarter
Acquisitions
Number of tenant sites acquired											5
Wireless Communication | 2016 Direct Third Party Acquisitions, Third Quarter
Acquisitions
Number of tenant sites acquired										5
Wireless Communication | 2016 Direct Third Party Acquisitions, Fourth Quarter
Acquisitions
Number of tenant sites acquired									15
Outdoor Advertising
Acquisitions
Number of tenant sites acquired												55	26	9
Outdoor Advertising | International
Acquisitions
Number of tenant sites acquired	8	12	8		3	2	4	4	5	1
Outdoor Advertising | Unit Exchange Acquisitions
Acquisitions
Number of tenant sites acquired			1	1	4		1		1
Outdoor Advertising | Domestic
Acquisitions
Number of tenant sites acquired	1	11	1	12	5			3	2
Outdoor Advertising | 2018 Direct Third Party Acquisitions, First Quarter
Acquisitions
Number of tenant sites acquired				13
Outdoor Advertising | 2017 Direct Third Party Acquisitions, First Quarter
Acquisitions
Number of tenant sites acquired								7
Outdoor Advertising | 2018 Direct Third Party Acquisitions, Second Quarter
Acquisitions
Number of tenant sites acquired			10
Outdoor Advertising | 2017 Direct Third Party Acquisitions, Second Quarter
Acquisitions
Number of tenant sites acquired							5
Outdoor Advertising | 2018 Direct Third Party Acquisitions, Third Quarter
Acquisitions
Number of tenant sites acquired		23
Outdoor Advertising | 2017 Direct Third Party Acquisitions, Third Quarter
Acquisitions
Number of tenant sites acquired						2
Outdoor Advertising | 2018 Direct Third Party Acquisitions, Fourth Quarter
Acquisitions
Number of tenant sites acquired	9
Outdoor Advertising | 2017 Direct Third Party Acquisitions, Fourth Quarter
Acquisitions
Number of tenant sites acquired					12
Outdoor Advertising | 2016 Direct Third Party Acquisitions, Third Quarter
Acquisitions
Number of tenant sites acquired										1
Outdoor Advertising | 2016 Direct Third Party Acquisitions, Fourth Quarter
Acquisitions
Number of tenant sites acquired									8
Renewable Power Generation
Acquisitions
Number of tenant sites acquired													2	6
Renewable Power Generation | Domestic
Acquisitions
Number of tenant sites acquired					2				6
Renewable Power Generation | 2017 Direct Third Party Acquisitions, Fourth Quarter
Acquisitions
Number of tenant sites acquired					2
Renewable Power Generation | 2016 Direct Third Party Acquisitions, Fourth Quarter
Acquisitions
Number of tenant sites acquired									6

Real Property Interests - Summa

Real Property Interests - Summary of Real Property Interests (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Real Estate [Abstract]
Land	$ 128,302	$ 114,385
Real property interests – perpetual	101,343	114,612
Real property interests – finite life	416,080	481,810
Construction in progress	29,556	7,574
Total land and real property interests	675,281	718,381
Accumulated amortization of real property interests	(39,069)	(37,817)
Land and net real property interests	$ 636,212	$ 680,564

Real Property Interests - Sale

Real Property Interests - Sale (Details)	Jan. 04, 2019USD ($)	Mar. 30, 2016USD ($)site	Mar. 22, 2016USD ($)site	Dec. 31, 2018USD ($)site	Dec. 31, 2017USD ($)site	Dec. 31, 2016USD ($)
Real Property Interests
Gain (loss) on sale of real property interests				$ 99,884,000	$ (5,000)	$ 374,000
Subsequent Event
Real Property Interests
Cash consideration received	$ 13,500,000
One Outdoor Advertising Site on December 31, 2018
Real Property Interests
Number of tenant sites sold | site				1
Cash consideration received				$ 100,000
One Outdoor Advertising Site on December 31, 2018 | Maximum
Real Property Interests
Gain (loss) on sale of real property interests				$ (100,000)
One Wireless Communication Site on December 31, 2017
Real Property Interests
Number of tenant sites sold | site					1
Cash consideration received					$ 200,000
One Wireless Communication Site on December 31, 2017 | Maximum
Real Property Interests
Gain (loss) on sale of real property interests					$ (100,000)
One Wireless Communication Site on March 22, 2016 | Sale
Real Property Interests
Number of tenant sites sold | site			1
Cash consideration received			$ 800,000
Gain (loss) on sale of real property interests			$ 400,000
12 Wireless Communication Sites March 30, 2016 | Sale | Landmark Dividend LLC | Sale to Related Party
Real Property Interests
Number of tenant sites sold | site		12
Cash consideration received		$ 2,000,000
Gain (loss) on sale of real property interests		$ 0

Real Property Interests - Acqui

Real Property Interests - Acquisitions (Details)	12 Months Ended
	Dec. 31, 2018USD ($)itemsite	Dec. 31, 2017USD ($)itemsite	Dec. 31, 2016USD ($)itemsite
Acquisitions
Consideration	$ 75,800,000	$ 41,000,000	$ 85,700,000
Construction in progress	$ 29,556,000	$ 7,574,000
Number of tenant sites acquired | site	104	63	40
Investments in Receivables | item		1
Measurement Input, Discount Rate | Minimum
Acquisitions
Discount rate used to estimate fair values (as a percent)	6
Measurement Input, Discount Rate | Maximum
Acquisitions
Discount rate used to estimate fair values (as a percent)	20
Joint Venture
Acquisitions
Number of tenant sites acquired | site	34
Investments in Receivables | item	1
Total net book value, one investment in receivable	$ 43,500,000
Rental revenue generated by consolidated joint venture	3,400,000	$ 800,000	$ 0
Acquisition from related party | 2016 Drop-down Acquisitions | Landmark, General Partner and affiliates
Acquisitions
Consideration	59,900,000	118,300,000	205,700,000
Historical cost basis			$ 141,100,000
Net carry value	39,500,000	99,800,000
Number of tenant sites acquired | site			539
Investments in Receivables | item			14
Flex Grid
Acquisitions
Construction in progress	$ 29,600,000	$ 7,600,000
Construction completed on number of infrastructure sites | site	4
Infrastructure Sites Completion Cost of Construction	$ 1,500,000

Real Property Interests - Sum_2

Real Property Interests - Summary of Allocation of Estimated Fair Values of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Fair values of the assets acquired and liabilities assumed at the date of acquisition
Below market lease intangibles	$ (17,097)	$ (21,218)
Landmark, General Partner and affiliates | Acquisition from related party
Fair values of the assets acquired and liabilities assumed at the date of acquisition
Land	16,646	25,151	$ 75,959
Investments in real property interests	91,314	107,195	34,096
Below market lease intangibles	(2,031)	(1,850)	(864)
Total	115,177	135,253	114,166
Landmark, General Partner and affiliates | Acquisition from related party | Acquired in-place leases
Fair values of the assets acquired and liabilities assumed at the date of acquisition
Lease intangibles, assets	7,939	3,781	4,003
Landmark, General Partner and affiliates | Acquisition from related party | Acquired above-market leases
Fair values of the assets acquired and liabilities assumed at the date of acquisition
Lease intangibles, assets	$ 1,309	$ 976	$ 972

Real Property Interests - Futur

Real Property Interests - Future Estimated Aggregate Amortization of Finite Lived Real Property Interests (Details) $ in Thousands	Dec. 31, 2018USD ($)
Future estimated aggregate amortization of real property interests
2,019	$ 11,765
2,020	11,237
2,021	10,646
2,022	10,362
2,023	10,335
Thereafter	322,666
Total	$ 377,011

Real Property Interests - Weigh

Real Property Interests - Weighted Average Remaining Amortization Period for Non-perpetual Real Property Interests (Details)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Real Estate [Abstract]
Weighted average remaining amortization period for non-perpetual real property interests	42 years	49 years

Real Property Interests - Impai

Real Property Interests - Impairment (Details)	12 Months Ended
	Dec. 31, 2018USD ($)site	Dec. 31, 2017USD ($)site	Dec. 31, 2016USD ($)site
Impairment
Number of real property interests impaired | site	16
Recognized impairment charge	$ 1,559,000	$ 848,000	$ 1,275,000
Impaired Real Property Interest
Impairment
Number of real property interests impaired | site	6	6	9
Recognized impairment charge	$ 600,000	$ 800,000	$ 1,300,000
Impaired real property interests	$ 0

Real Property Interests - Uncon

Real Property Interests - Unconsolidated Joint Venture (Details) $ in Thousands	1 Months Ended	12 Months Ended
	Sep. 24, 2018site	Dec. 31, 2018USD ($)site	Dec. 31, 2017USD ($)	Dec. 31, 2016USD ($)
Impaired Assets To Be Disposed Of By Method Other Than Sale [Line Items]
Gain on sale of real property interests		$ 99,884	$ (5)	$ 374
Net proceeds to repay the borrowings		59
Revolving Credit Facility
Impaired Assets To Be Disposed Of By Method Other Than Sale [Line Items]
Net proceeds to repay the borrowings		59,700
Unconsolidated Joint Venture
Impaired Assets To Be Disposed Of By Method Other Than Sale [Line Items]
Gain on sale of real property interests		$ 100,000
Number of tenant site assets contributed | site	545	545

Real Property Interests - Carry

Real Property Interests - Carrying Amounts of Major Classes of Assets and Liabilities Held for Sale (Details) $ in Thousands	Dec. 31, 2018USD ($)
Real Estate [Abstract]
Land	$ 1,286
Real property interests, net	5,566
Other intangible assets, net	994
AHFS	7,846
Other intangible liabilities, net	397
Liabilities associated with AHFS	$ 397

Other Intangible Assets and L_3

Other Intangible Assets and Liabilities - Total Other Intangible Assets, Net (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Other Intangible Assets
Net amount	$ 20,839	$ 17,984
Acquired in-place leases
Other Intangible Assets
Gross amount	23,261	20,486
Accumulated amortization	(6,237)	(6,119)
Net amount	17,024	14,367
Acquired above-market leases
Other Intangible Assets
Gross amount	6,542	6,503
Accumulated amortization	(2,727)	(2,886)
Net amount	$ 3,815	$ 3,617

Other Intangible Assets and L_4

Other Intangible Assets and Liabilities - Total Other Intangible Liabilities, Net (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Acquired below-market leases
Below market lease intangibles	$ (17,097)	$ (21,218)
Accumulated amortization	7,806	8,385
Net amount	$ (9,291)	$ (12,833)

Other Intangible Assets and L_5

Other Intangible Assets and Liabilities - Amortization (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Other Intangible Assets And Liabilities [Abstract]
Amortization of above-and below-market leases	$ 1,226	$ 1,226	$ 1,338
Amortization expense	$ 2,100	$ 1,600	$ 1,500

Other Intangible Assets and L_6

Other Intangible Assets and Liabilities - Future Aggregate Amortization of Other Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Future amortization of lease intangibles
Net amount	$ 20,839	$ 17,984
Acquired in-place leases
Future amortization of lease intangibles
2,019	1,725
2,020	1,651
2,021	1,589
2,022	1,507
2,023	1,223
Thereafter	9,329
Net amount	17,024	14,367
Acquired above-market leases
Future amortization of lease intangibles
2,019	692
2,020	532
2,021	426
2,022	344
2,023	308
Thereafter	1,513
Net amount	$ 3,815	$ 3,617

Other Intangible Assets and L_7

Other Intangible Assets and Liabilities - Future Aggregate Amortization of Other Intangible Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Future amortization of acquired below-market leases
2,019	$ (1,580)
2,020	(1,535)
2,021	(1,408)
2,022	(1,284)
2,023	(831)
Thereafter	(2,653)
Net amount	$ (9,291)	$ (12,833)

Future Minimum Rents (Details)

Future Minimum Rents (Details) $ in Thousands	Dec. 31, 2018USD ($)
Future Minimum Rents
2,019	$ 17,250
2,020	16,798
2,021	16,250
2,022	16,050
2,023	14,903
Thereafter	54,773
Total	$ 136,024

Investments in Receivables - Ge

Investments in Receivables - General Information (Details) - USD ($) $ in Thousands	Jul. 21, 2015	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Receivables With Imputed Interest [Line Items]
Payment collection period, minimum		2 years
Payment collection period, maximum		99 years
Interest income recognized		$ 1,600	$ 1,600	$ 1,200
Recognized impairment charge		$ 785
Minimum
Receivables With Imputed Interest [Line Items]
Discount rate	7.00%
Maximum
Receivables With Imputed Interest [Line Items]
Discount rate	14.00%

Investments in Receivables - Ac

Investments in Receivables - Activity in Investments in Receivables (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Notes Receivable Net [Abstract]
Investments in receivables – beginning	$ 20,782	$ 17,440
Acquisitions		4,389
Impairments	(785)
Sales	(350)
Repayments	(1,108)	(1,180)	$ (905)
Interest accretion	3	7	36
Foreign currency translation adjustment	(194)	126
Investments in receivables – ending	$ 18,348	$ 20,782	$ 17,440

Investments in Receivables - An

Investments in Receivables - Annual Amounts Due (Details) $ in Thousands	Dec. 31, 2018USD ($)
Notes Receivable Net [Abstract]
2,019	$ 2,166
2,020	2,154
2,021	2,212
2,022	2,345
2,023	2,468
Thereafter	24,263
Total	$ 35,608

Investments in Receivables - _2

Investments in Receivables - Annual Amounts Due - Principal and Interest (Details) $ in Thousands	Dec. 31, 2018USD ($)
Notes Receivable Net [Abstract]
Interest	$ 17,260
Principal	18,348
Total	$ 35,608

Investment in Unconsolidated _3

Investment in Unconsolidated Joint Venture - Additional Information (Details)	Jun. 16, 2016USD ($)	Sep. 24, 2018USD ($)site	Jun. 06, 2018USD ($)	Dec. 31, 2018USD ($)site	Dec. 31, 2017USD ($)	Nov. 30, 2017USD ($)
Secured notes
Schedule Of Equity Method Investments [Line Items]
Aggregate principal amount	$ 116,600,000		$ 125,400,000			$ 80,000,000
Debt discount	17,292			$ 1,454,000	$ 1,826,000	$ 1,800,000
Secured notes | Maximum
Schedule Of Equity Method Investments [Line Items]
Debt discount			100,000
Senior secured revolving credit facility
Schedule Of Equity Method Investments [Line Items]
Repayment of debt	$ 112,300,000		$ 120,500,000
Series 2018-1 Class C 3.97%
Schedule Of Equity Method Investments [Line Items]
Interest rate (as a percent)				3.97%
Series 2018-1 Class D 4.70%
Schedule Of Equity Method Investments [Line Items]
Interest rate (as a percent)				4.70%
Series 2018-1 Class F 5.92%
Schedule Of Equity Method Investments [Line Items]
Interest rate (as a percent)				5.92%
Unconsolidated Joint Venture
Schedule Of Equity Method Investments [Line Items]
Number of tenant site assets contributed | site		545		545
Aggregate principal amount		$ 125,400,000
Percentage of membership interest in unconsolidated JV		50.01%
Cash transaction in unconsolidated JV		$ 65,500,000

Investment in Unconsolidated _4

Investment in Unconsolidated Joint Venture - Summary of Partnership Contribution of Assets and Liabilities at Cost to JV (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Sep. 24, 2018
Assets
Total assets	$ 263,228
Liabilities
Total liabilities	128,448
Net equity contributed to the unconsolidated joint venture	$ 134,780
Unconsolidated Joint Venture
Assets
Cash, cash equivalents and restricted cash		$ 1,549
Real property interests, net		153,028
Other intangible assets, net		2,468
Total assets		157,045
Liabilities
Secured notes, net		122,084
Other intangible liabilities, net		3,046
Other liabilities		758
Total liabilities		125,888
Net equity contributed to the unconsolidated joint venture		$ 31,157

Investment in Unconsolidated _5

Investment in Unconsolidated Joint Venture - Summary of Partnership Gain on Contribution of Real Property Interests to JV (Details) - USD ($) $ in Thousands	Sep. 24, 2018	Dec. 31, 2018
Schedule Of Equity Method Investments [Line Items]
Less: Net equity contributed to the unconsolidated joint venture		$ (134,780)
Unconsolidated Joint Venture
Schedule Of Equity Method Investments [Line Items]
Investment in unconsolidated joint venture	$ 65,611
Proceeds from sale of real property interests	65,585
Less: Net equity contributed to the unconsolidated joint venture	(31,157)
Gain on sale of real property interests	$ 100,039

Investment in Unconsolidated _6

Investment in Unconsolidated Joint Venture - Summary of Balance Sheet Information for Unconsolidated JV (Details) $ in Thousands	Dec. 31, 2018USD ($)
Statement Of Financial Position [Abstract]
Total assets	$ 263,228
Total liabilities	128,448
Total equity	134,780
Total liabilities and equity	$ 263,228

Investment in Unconsolidated _7

Investment in Unconsolidated Joint Venture - Summary of Financial Information for Unconsolidated JV (Details) - Unconsolidated Joint Venture $ in Thousands	12 Months Ended
	Dec. 31, 2018USD ($)
Schedule Of Equity Method Investments [Line Items]
Rental revenue	$ 3,697
Net income	$ 117

Debt - Summary of Debt (Details

Debt - Summary of Debt (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Nov. 30, 2017	Jun. 16, 2016
Debt
Outstanding Balance, revolving credit facility	$ 155,000,000	$ 304,000,000
Deferred loan costs	(5,552,000)	(3,589,000)
Secured Notes, net	223,685,000	187,249,000
Senior secured revolving credit facility
Debt
Outstanding Balance, revolving credit facility	$ 155,000,000	304,000,000
Maturity Date	Nov. 15, 2023
4.38% senior secured notes
Debt
Outstanding Balance, secured debt	$ 42,058,000
Maturity Date	Jun. 30, 2036
Series 2017-1 Class A
Debt
Outstanding Balance, secured debt	$ 60,900,000	62,000,000
Maturity Date	Nov. 15, 2022
Series 2017-1 Class B
Debt
Outstanding Balance, secured debt	$ 17,563,000	18,000,000
Maturity Date	Nov. 15, 2022
Series 2016-1 Class A
Debt
Outstanding Balance, secured debt	$ 86,258,000	89,171,000
Maturity Date	Jun. 1, 2021
Series 2016-1 Class B
Debt
Outstanding Balance, secured debt	$ 25,100,000	25,100,000
Maturity Date	Jun. 1, 2021
Secured notes
Debt
Outstanding Balance, secured debt	$ 231,879,000	194,271,000
Discount on Secured Notes	(1,454,000)	(1,826,000)	$ (1,800,000)	$ (17,292)
Deferred loan costs	(6,740,000)	(5,196,000)
Secured Notes, net	$ 223,685,000	$ 187,249,000

Debt - Summary of Debt (Parenth

Debt - Summary of Debt (Parenthetical) (Details)	12 Months Ended
	Dec. 31, 2018
Series 2017-1 Class A and B
Debt Instrument [Line Items]
Debt instrument, final legal maturity date	Nov. 15, 2047
Series 2016-1 Class A and B
Debt Instrument [Line Items]
Debt instrument, final legal maturity date	Jul. 15, 2046

Debt - Revolving Credit Facilit

Debt - Revolving Credit Facility (Details) - USD ($) $ in Thousands	Nov. 15, 2018	Dec. 31, 2018	Dec. 31, 2017
Debt
Revolving credit facility		$ 155,000	$ 304,000
Senior secured revolving credit facility
Debt
Annual commitment rate		0.175%
Maturity Date		Nov. 15, 2023
Revolving credit facility		$ 155,000	$ 304,000
Undrawn borrowing capacity		$ 295,000
Senior secured revolving credit facility | Base rate - federal funds rate
Debt
Applicable margin (as a percent)		1.75%
Senior secured revolving credit facility | Base rate - one month LIBOR
Debt
Applicable margin (as a percent)		2.25%
Senior secured revolving credit facility | Base rate
Debt
Applicable margin (as a percent)		2.00%
Amended and Restated Senior Secured Revolving Credit Facility
Debt
Initial borrowing capacity	$ 450,000
Credit facility term	5 years
Additional borrowing capacity	$ 75,000

Debt - Secured Notes (Details)

Debt - Secured Notes (Details) - USD ($)	Apr. 24, 2018	Nov. 30, 2017	Jun. 16, 2016	Jun. 06, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 28, 2017	Dec. 31, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Restricted cash reserved					$ 3,672,000	$ 18,672,000	$ 18,700,000	$ 2,900,000	$ 0
Note Purchase Agreement
Debt Instrument [Line Items]
Aggregate principal amount	$ 43,700,000
Interest rate (as a percent)	4.38%
Maturity Date	Jun. 30, 2036
Debt instrument amortized, description					The 4.38% Senior Secured Notes are fully amortized through June 30, 2036
Note Purchase Agreement | Revolving Credit Facility
Debt Instrument [Line Items]
Net proceeds from borrowings	$ 41,000,000
Note Purchase Agreement | Maximum
Debt Instrument [Line Items]
Aggregate principal amount	$ 225,000,000
Secured notes
Debt Instrument [Line Items]
Aggregate principal amount		$ 80,000,000	$ 116,600,000	$ 125,400,000
Acquisition costs, period cost		16,000,000
Debt discount		1,800,000	17,292		$ 1,454,000	$ 1,826,000
Number of calendar months to maintain maximum debt service coverage ratio					12 months
Secured notes | Maximum
Debt Instrument [Line Items]
Debt discount				100,000
Senior secured revolving credit facility
Debt Instrument [Line Items]
Maturity Date					Nov. 15, 2023
Repayment of debt			$ 112,300,000	$ 120,500,000
Senior secured revolving credit facility | Maximum | Restricted Reserve Accounts
Debt Instrument [Line Items]
Repayment of debt		17,500,000
Senior secured revolving credit facility | Minimum | Restricted Reserve Accounts
Debt Instrument [Line Items]
Repayment of debt		$ 54,000,000
Series 2017-1 Class A
Debt Instrument [Line Items]
Interest rate (as a percent)		4.10%
Maturity Date					Nov. 15, 2022
Series 2017-1 Class B
Debt Instrument [Line Items]
Interest rate (as a percent)		3.81%
Maturity Date					Nov. 15, 2022
Series 2017-1 Class A and B
Debt Instrument [Line Items]
Maturity Date					Nov. 15, 2047
Frequency of periodic payment of principal and interest					monthly
Amortization period		30 years
Secured Notes, Commencing start date		Jan. 31, 2018
Other payments related to principal		$ 0
Secured Notes, Anticipated repayment end date		Nov. 30, 2022
Series 2016-1 Class A
Debt Instrument [Line Items]
Interest rate (as a percent)			3.52%
Series 2016-1 Class B
Debt Instrument [Line Items]
Interest rate (as a percent)			7.02%
Maturity Date					Jun. 1, 2021
Series 2016-1 Class A and B
Debt Instrument [Line Items]
Maturity Date					Jul. 15, 2046
Frequency of periodic payment of principal and interest					monthly
Amortization period			30 years
Secured Notes, Commencing start date			Jul. 31, 2016
Other payments related to principal			$ 0
Secured Notes, Anticipated repayment end date			Jun. 30, 2021

Debt - Schedule of Debt Service

Debt - Schedule of Debt Service Coverage Ratio (Details)	12 Months Ended
	Dec. 31, 2018
2017 Securitization
Debt Instrument [Line Items]
Issuer or Borrower	LMRK Issuer Co. 2 LLC
Notes Issued	Series 2017-1 Secured Notes, Class A and Class B
Conditions Limiting Distributions of Excess Cash, Cash Trap DSCR	1.30%	[1]
2016 Securitization
Debt Instrument [Line Items]
Issuer or Borrower	LMRK Issuer Co. LLC
Notes Issued	Series 2016-1 Secured Notes, Class A and Class B
Conditions Limiting Distributions of Excess Cash, Cash Trap DSCR	1.30%	[1]
[1]	Once triggered, a Cash Trap DSCR condition continues to exist until the DSCR exceeds the Cash Trap DSCR for two consecutive calendar months. During a Cash Trap DSCR condition, all cash flow in excess of amounts required to make debt service payments, to fund required reserves, to pay management fees and budgeted operating expenses and to make other payments required under the indenture, referred to as excess cash flow, will be deposited into a reserve account instead of being released to the applicable issuer.

Debt - Schedule of Debt Servi_2

Debt - Schedule of Debt Service Coverage Ratio (Parenthetical) (Details) - Secured notes	Nov. 30, 2017	Jun. 16, 2016
Debt Instrument [Line Items]
Number of consecutive calendar months	2 months	2 months
Minimum
Debt Instrument [Line Items]
Debt service coverage ratio	1.15%	1.15%

Debt - Annual Principal Payment

Debt - Annual Principal Payment Amounts (Details) - Secured notes - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
2,019	$ 8,206
2,020	10,313
2,021	108,013
2,022	72,598
2,023	2,714
Thereafter	30,035
Total	$ 231,879	$ 194,271

Debt - Interest Expense (Detail

Debt - Interest Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Interest Expense
Debt interest expense	$ 24,300	$ 18,400	$ 13,900
Interest payable	300	700
Loss on early extinguishment of debt	(157)		(1,703)
Amortization of deferred loan costs	3,435	2,203	1,701
Interest expense
Interest Expense
Amortization of deferred loan costs and discount on secured notes	3,800	$ 2,200	$ 1,700
Amended and Restated Senior Secured Revolving Credit Facility
Interest Expense
Loss on early extinguishment of debt	200
Amortization of deferred loan costs	$ 3,800

Debt - Drop-down Acquisitions (

Debt - Drop-down Acquisitions (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Debt
Debt interest expense	$ 24,300	$ 18,400	$ 13,900
Amortization of deferred loan costs	3,435	$ 2,203	1,701
Loss on early extinguishment of debt	$ (157)		(1,703)
Secured Debt Facility | Landmark Dividend Growth Fund G LLC
Debt
Repayment of debt			74,600
Secured Debt Facility | Acquired Funds
Debt
Debt interest expense			2,500
Amortization of deferred loan costs			400
Loss on early extinguishment of debt			$ 1,700

Interest Rate Swap Agreements -

Interest Rate Swap Agreements - Fair Value of Interest Rate Swap Agreements (Details)	12 Months Ended
	Dec. 31, 2018USD ($)	Dec. 31, 2018GBP (£)	Dec. 31, 2017USD ($)
Level 2 inputs
Interest Rate Swap Agreements
Fair Value Asset (Liability)	$ 4,188,000		$ 3,159,000
Agreement effective date December 24, 2014
Interest Rate Swap Agreements
Notional value	$ 70,000,000
Fixed Rate	1.52%	1.52%
Index	1-month USD LIBOR
Agreement effective date December 24, 2014 | Level 2 inputs
Interest Rate Swap Agreements
Fair Value Asset (Liability)			164,000
Agreement effective date April 13, 2015
Interest Rate Swap Agreements
Notional value	$ 25,000,000
Fixed Rate	1.29%	1.29%
Index	1-month USD LIBOR
Agreement effective date April 13, 2015 | Level 2 inputs
Interest Rate Swap Agreements
Fair Value Asset (Liability)	$ 102,000		174,000
Agreement effective date October 1, 2015
Interest Rate Swap Agreements
Notional value	$ 50,000,000
Fixed Rate	1.74%	1.74%
Index	1-month USD LIBOR
Agreement effective date October 1, 2015 | Level 2 inputs
Interest Rate Swap Agreements
Fair Value Asset (Liability)	$ 1,259,000		840,000
Agreement entered into March 23, 2016 effective date December 24, 2018
Interest Rate Swap Agreements
Notional value	$ 50,000,000
Fixed Rate	1.67%	1.67%
Index	1-month USD LIBOR
Agreement entered into March 23, 2016 effective date December 24, 2018 | Level 2 inputs
Interest Rate Swap Agreements
Fair Value Asset (Liability)	$ 1,117,000		761,000
Agreement entered into March 31, 2016 effective date December 24, 2018
Interest Rate Swap Agreements
Notional value	$ 20,000,000
Fixed Rate	1.56%	1.56%
Index	1-month USD LIBOR
Agreement entered into March 31, 2016 effective date December 24, 2018 | Level 2 inputs
Interest Rate Swap Agreements
Fair Value Asset (Liability)	$ 508,000		364,000
Agreement entered into March 31, 2016 effective date April 13, 2019
Interest Rate Swap Agreements
Notional value	$ 25,000,000
Fixed Rate	1.63%	1.63%
Index	1-month USD LIBOR
Agreement entered into March 31, 2016 effective date April 13, 2019 | Level 2 inputs
Interest Rate Swap Agreements
Fair Value Asset (Liability)	$ 569,000		418,000
Agreement entered into June 12, 2017 effective date March 02, 2018
Interest Rate Swap Agreements
Notional value	$ 50,000,000
Fixed Rate	2.10%	2.10%
Index	1-month USD LIBOR
Agreement entered into June 12, 2017 effective date March 02, 2018 | Level 2 inputs
Interest Rate Swap Agreements
Fair Value Asset (Liability)	$ 1,035,000		$ 438,000
Agreement entered into November 15, 2018 effective date November 30, 2020
Interest Rate Swap Agreements
Notional value | £		£ 38,000,000
Fixed Rate	1.49%	1.49%
Index	1-month GBP LIBOR
Agreement entered into November 15, 2018 effective date November 30, 2020 | Level 2 inputs
Interest Rate Swap Agreements
Fair Value Asset (Liability)	$ (402,000)

Interest Rate Swap Agreements_2

Interest Rate Swap Agreements - Gain (Loss) on Derivatives (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Interest Rate Swap Agreements
Unrealized gain on derivatives	$ 1,010,000	$ 1,675,000	$ 2,306,000
Realized loss on derivatives			100,000
Acquired Funds | Interest Rate Swap Agreement | Restatement Adjustment
Interest Rate Swap Agreements
Unrealized gain on derivatives			$ 100,000
Maximum
Interest Rate Swap Agreements
Realized loss on foreign currency derivatives	$ 100,000

Interest Rate Swap Agreements_3

Interest Rate Swap Agreements - Sensitivity Analysis (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2018USD ($)
Agreement effective date April 13, 2015 | Increase of 50 Basis Points
Interest Rate Swap Agreements
Sensitivity analysis, increase (decrease) in fair value of interest rate derivative	$ 134
Agreement effective date April 13, 2015 | Decrease of 50 Basis Points
Interest Rate Swap Agreements
Sensitivity analysis, increase (decrease) in fair value of interest rate derivative	71
Agreement effective date April 13, 2015 | Increase of 100 Basis Points
Interest Rate Swap Agreements
Sensitivity analysis, increase (decrease) in fair value of interest rate derivative	165
Agreement effective date April 13, 2015 | Decrease of 100 Basis Points
Interest Rate Swap Agreements
Sensitivity analysis, increase (decrease) in fair value of interest rate derivative	40
Agreement effective date October 1, 2015 | Increase of 50 Basis Points
Interest Rate Swap Agreements
Sensitivity analysis, increase (decrease) in fair value of interest rate derivative	2,111
Agreement effective date October 1, 2015 | Decrease of 50 Basis Points
Interest Rate Swap Agreements
Sensitivity analysis, increase (decrease) in fair value of interest rate derivative	400
Agreement effective date October 1, 2015 | Increase of 100 Basis Points
Interest Rate Swap Agreements
Sensitivity analysis, increase (decrease) in fair value of interest rate derivative	2,940
Agreement effective date October 1, 2015 | Decrease of 100 Basis Points
Interest Rate Swap Agreements
Sensitivity analysis, increase (decrease) in fair value of interest rate derivative	(483)
Agreement entered into March 23, 2016 effective date December 24, 2018 | Increase of 50 Basis Points
Interest Rate Swap Agreements
Sensitivity analysis, increase (decrease) in fair value of interest rate derivative	1,802
Agreement entered into March 23, 2016 effective date December 24, 2018 | Decrease of 50 Basis Points
Interest Rate Swap Agreements
Sensitivity analysis, increase (decrease) in fair value of interest rate derivative	429
Agreement entered into March 23, 2016 effective date December 24, 2018 | Increase of 100 Basis Points
Interest Rate Swap Agreements
Sensitivity analysis, increase (decrease) in fair value of interest rate derivative	2,470
Agreement entered into March 23, 2016 effective date December 24, 2018 | Decrease of 100 Basis Points
Interest Rate Swap Agreements
Sensitivity analysis, increase (decrease) in fair value of interest rate derivative	(276)
Agreement entered into March 31, 2016 effective date December 24, 2018 | Increase of 50 Basis Points
Interest Rate Swap Agreements
Sensitivity analysis, increase (decrease) in fair value of interest rate derivative	782
Agreement entered into March 31, 2016 effective date December 24, 2018 | Decrease of 50 Basis Points
Interest Rate Swap Agreements
Sensitivity analysis, increase (decrease) in fair value of interest rate derivative	234
Agreement entered into March 31, 2016 effective date December 24, 2018 | Increase of 100 Basis Points
Interest Rate Swap Agreements
Sensitivity analysis, increase (decrease) in fair value of interest rate derivative	1,049
Agreement entered into March 31, 2016 effective date December 24, 2018 | Decrease of 100 Basis Points
Interest Rate Swap Agreements
Sensitivity analysis, increase (decrease) in fair value of interest rate derivative	(48)
Agreement entered into March 31, 2016 effective date April 13, 2019 | Increase of 50 Basis Points
Interest Rate Swap Agreements
Sensitivity analysis, increase (decrease) in fair value of interest rate derivative	918
Agreement entered into March 31, 2016 effective date April 13, 2019 | Decrease of 50 Basis Points
Interest Rate Swap Agreements
Sensitivity analysis, increase (decrease) in fair value of interest rate derivative	218
Agreement entered into March 31, 2016 effective date April 13, 2019 | Increase of 100 Basis Points
Interest Rate Swap Agreements
Sensitivity analysis, increase (decrease) in fair value of interest rate derivative	1,258
Agreement entered into March 31, 2016 effective date April 13, 2019 | Decrease of 100 Basis Points
Interest Rate Swap Agreements
Sensitivity analysis, increase (decrease) in fair value of interest rate derivative	(143)
Agreement entered into June 12, 2017 effective date March 02, 2018 | Increase of 50 Basis Points
Interest Rate Swap Agreements
Sensitivity analysis, increase (decrease) in fair value of interest rate derivative	2,291
Agreement entered into June 12, 2017 effective date March 02, 2018 | Decrease of 50 Basis Points
Interest Rate Swap Agreements
Sensitivity analysis, increase (decrease) in fair value of interest rate derivative	(262)
Agreement entered into June 12, 2017 effective date March 02, 2018 | Increase of 100 Basis Points
Interest Rate Swap Agreements
Sensitivity analysis, increase (decrease) in fair value of interest rate derivative	3,510
Agreement entered into June 12, 2017 effective date March 02, 2018 | Decrease of 100 Basis Points
Interest Rate Swap Agreements
Sensitivity analysis, increase (decrease) in fair value of interest rate derivative	(1,598)
Agreement entered into November 15, 2018 effective date November 30, 2020 | Increase of 50 Basis Points
Interest Rate Swap Agreements
Sensitivity analysis, increase (decrease) in fair value of interest rate derivative	684
Agreement entered into November 15, 2018 effective date November 30, 2020 | Decrease of 50 Basis Points
Interest Rate Swap Agreements
Sensitivity analysis, increase (decrease) in fair value of interest rate derivative	(1,675)
Agreement entered into November 15, 2018 effective date November 30, 2020 | Increase of 100 Basis Points
Interest Rate Swap Agreements
Sensitivity analysis, increase (decrease) in fair value of interest rate derivative	1,784
Agreement entered into November 15, 2018 effective date November 30, 2020 | Decrease of 100 Basis Points
Interest Rate Swap Agreements
Sensitivity analysis, increase (decrease) in fair value of interest rate derivative	$ (2,939)
Interest Rate Swap Agreement | Increase of 50 Basis Points
Interest Rate Swap Agreements
Sensitivity analysis, assumed increase (decrease) in basis points (as a percent)	0.50%
Interest Rate Swap Agreement | Decrease of 50 Basis Points
Interest Rate Swap Agreements
Sensitivity analysis, assumed increase (decrease) in basis points (as a percent)	(0.50%)
Interest Rate Swap Agreement | Increase of 100 Basis Points
Interest Rate Swap Agreements
Sensitivity analysis, assumed increase (decrease) in basis points (as a percent)	1.00%
Interest Rate Swap Agreement | Decrease of 100 Basis Points
Interest Rate Swap Agreements
Sensitivity analysis, assumed increase (decrease) in basis points (as a percent)	(1.00%)

Unit-Based Compensation (Detail

Unit-Based Compensation (Details)	Jan. 25, 2018$ / yr	Dec. 31, 2018$ / yrshares	Dec. 31, 2017shares	Dec. 31, 2016shares
Landmark Infrastructure Partners LP 2014 Long-Term Incentive Plan (the "LTIP") | Limited Partners | Common Units
Unit-Based Compensation
Initial limit on the number of units that may be delivered pursuant to vested awards (in shares) | shares		785,000
Annual increase in the number of units that may be delivered pursuant to vested awards, maximum (in shares) | shares		1,570,000
Annual increase in the number of units that may be delivered pursuant to vested awards, as a percentage of total number of units outstanding (as a percent)		2.00%
Non-Employee Director
Unit-Based Compensation
Annualized compensation, payable in cash (in dollars per year)		35,000
Annualized compensation, payable in common units, value (in dollars per year)		35,000
Non-Employee Director | Amended and Restated Plan
Unit-Based Compensation
Annualized compensation, payable in cash (in dollars per year)	40,000
Annualized compensation, payable in common units, value (in dollars per year)	40,000
Non-Employee Director | Landmark Infrastructure Partners LP 2014 Long-Term Incentive Plan (the "LTIP")
Unit-Based Compensation
Number of units granted (in shares) | shares		3,826	6,798	9,840
Chairman of the Audit Committee
Unit-Based Compensation
Additional annualized compensation, payable in cash (in dollars per year)		10,000
Chairman of the Audit Committee | Amended and Restated Plan
Unit-Based Compensation
Additional annualized compensation, payable in cash (in dollars per year)	15,000
Executive Officer
Unit-Based Compensation
Number of units granted (in shares) | shares		0

Equity - Changes in Units Outst

Equity - Changes in Units Outstanding (Details) - shares	Apr. 28, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Increase (decrease) in partners' capital
Issuance of units to Fund	221,729
Limited Partners | Common Units
Increase (decrease) in partners' capital
Balance (in units)		20,146,458	19,450,555	11,820,144
Conversion of subordinated units (in units)		3,135,109
Issuance of units in connection with the Acquired Funds				3,592,430
Issuance of units, net (in units)				3,450,000
Unit-based compensation (in units)		3,826	6,798	9,840
Balance (in units)		25,327,801	20,146,458	19,450,555
Limited Partners | Common Units | Landmark, General Partner and affiliates
Increase (decrease) in partners' capital
Issuance of units to Fund	221,729	1,506,421	221,729
Limited Partners | Common Units | At The Market Issuance Sales Agreement
Increase (decrease) in partners' capital
Issuance of units, net (in units)		27,830	240,426	405,156
Limited Partners | Common Units | Unit Exchange Program
Increase (decrease) in partners' capital
Issuance of units, net (in units)		508,157	226,950	172,985
Limited Partners | Subordinated Units
Increase (decrease) in partners' capital
Balance (in units)		3,135,109	3,135,109	3,135,109
Conversion of subordinated units (in units)		(3,135,109)
Balance (in units)			3,135,109	3,135,109
Limited Partners | Preferred Units Series A
Increase (decrease) in partners' capital
Balance (in units)		1,568,402	863,957
Issuance of units, net (in units)				800,000
Balance (in units)		1,593,149	1,568,402	863,957
Limited Partners | Preferred Units Series A | At The Market Issuance Sales Agreement
Increase (decrease) in partners' capital
Issuance of units, net (in units)		24,747	704,445	63,957
Limited Partners | Preferred Units Series B
Increase (decrease) in partners' capital
Balance (in units)		2,463,015	1,840,000
Issuance of units, net (in units)				1,840,000
Balance (in units)		2,463,015	2,463,015	1,840,000
Limited Partners | Preferred Units Series B | At The Market Issuance Sales Agreement
Increase (decrease) in partners' capital
Issuance of units, net (in units)			623,015
Limited Partners | Preferred Units Series C
Increase (decrease) in partners' capital
Issuance of units, net (in units)		2,000,000
Balance (in units)		2,000,000

Equity - General Information (D

Equity - General Information (Details) $ / shares in Units, $ in Thousands

Dec. 31, 2018USD ($)site$ / sharesshares

May 15, 2018$ / shares

Apr. 02, 2018USD ($)$ / sharesshares

Feb. 15, 2018

Apr. 28, 2017siteshares

Mar. 30, 2017USD ($)

Mar. 27, 2017USD ($)

Nov. 15, 2016$ / shares

Oct. 19, 2016USD ($)$ / sharesshares

Aug. 08, 2016USD ($)$ / sharesshares

Jul. 15, 2016$ / shares

Jun. 24, 2016USD ($)

Apr. 04, 2016USD ($)$ / shares

Feb. 16, 2016USD ($)

Dec. 31, 2018site$ / sharesshares

Sep. 30, 2018$ / shares

Jun. 30, 2018$ / shares

Mar. 31, 2018$ / shares

Dec. 31, 2017$ / shares

Sep. 30, 2017$ / shares

Jun. 30, 2017$ / shares

Mar. 31, 2017$ / shares

Dec. 31, 2016$ / shares

Sep. 30, 2016$ / shares

Jun. 30, 2016$ / shares

Jun. 30, 2017$ / shares

Dec. 31, 2018USD ($)site$ / sharesshares

Dec. 31, 2017USD ($)siteshares

Dec. 31, 2016USD ($)siteshares

Aug. 30, 2016site

Mar. 10, 2016shares

Partnership Equity

Aggregate offering price

$ 750,000

Number of tenant sites acquired | site

104

63

40

Number of common units in connection with acquisition (in shares) | shares

221,729

Common Units Issued to Landmark and Affiliates

$ 7,700

$ 3,800

$ 2,600

Proceeds from the issuance of Preferred Units, net

$ 47,911

31,891

63,649

Number of tenant sites obligated to acquire | site

2

2

2

Proceeds from the issuance of Common Units, net

$ 437

$ 4,109

$ 59,990

Quarterly distributions

Conversion ratio of subordinated units into common units

100.00%

Acquisition from related party | Landmark, General Partner and affiliates

Partnership Equity

Number of common units in connection with acquisition (in shares) | shares

221,729

Number of tenant sites obligated to acquire | site

2

Wireless Communication

Partnership Equity

Number of tenant sites acquired | site

49

35

25

Preferred Units Series A

Partnership Equity

Distribution Per Unit Paid (in dollars per share) | $ / shares

$ 0.5000

$ 0.5000

$ 0.5000

$ 0.5000

$ 0.5000

$ 0.5000

$ 0.5000

$ 0.5000

$ 0.5000

$ 0.5000

$ 0.5611

Distribution date

Jan. 15, 2019

Oct. 15, 2018

Jul. 16, 2018

Apr. 16, 2018

Jan. 16, 2018

Oct. 16, 2017

Jul. 17, 2017

Apr. 17, 2017

Jan. 17, 2017

Oct. 17, 2016

Jul. 15, 2016

Preferred Units Series B

Partnership Equity

Distribution Per Unit Paid (in dollars per share) | $ / shares

$ 0.4938

$ 0.4938

$ 0.4938

$ 0.4938

$ 0.4938

$ 0.4938

$ 0.4938

$ 0.4938

$ 0.4938

$ 0.5322

Distribution date

Feb. 15, 2019

Nov. 15, 2018

Aug. 15, 2018

May 15, 2018

Feb. 15, 2018

Nov. 15, 2017

Aug. 15, 2017

May 15, 2017

Feb. 15, 2017

Nov. 15, 2016

Preferred Units Series C

Partnership Equity

Distribution Per Unit Paid (in dollars per share) | $ / shares

$ 0.4571

$ 0.4382

$ 0.4400

Stated liquidation preference / redemption price (in dollars per share) | $ / shares

$ 25

$ 25

$ 25

Distribution date

Feb. 15, 2019

Nov. 15, 2018

Aug. 15, 2018

Conversion rate for preferred unit | shares

1.3017

1.3017

1.3017

Designated redemption date one

May 15, 2025

Designated redemption date two

May 15, 2028

Designated redemption period

5 years

Liquidation preference | $ / shares

$ 11.13

$ 11.13

$ 11.13

Preferred units redemption date

May 20, 2025

Preferred units redemption price | $ / shares

25

25

$ 25

At The Market Issuance Sales Agreement | Preferred Units

Partnership Equity

Aggregate offering price

$ 40,000

Unit Exchange Program | 28-site acquisition | Wireless Communication

Partnership Equity

Number of tenant sites acquired | site

28

Common Units Issued to Landmark and Affiliates

$ 7,600

Unit Exchange Program | 12-site acquisition | Wireless Communication

Partnership Equity

Number of tenant sites acquired | site

12

Common Units Issued to Landmark and Affiliates

$ 3,800

Unit Exchange Program | 6-site acquisition | Wireless Communication

Partnership Equity

Number of tenant sites acquired | site

6

Common Units Issued to Landmark and Affiliates

$ 2,600

Limited Partners | Acquisition from related party | Landmark, General Partner and affiliates

Partnership Equity

Number of tenant sites obligated to acquire | site

2

Limited Partners | Common Units

Partnership Equity

Issuance of units, net (in shares) | shares

2,043,000

688,000

7,621,000

Quarterly distributions

Minimum quarterly distribution per unit (in dollars per share) | $ / shares

$ 0.2875

Limited Partners | Common Units | Landmark, General Partner and affiliates

Partnership Equity

Number of common units in connection with acquisition (in shares) | shares

221,729

1,506,421

221,729

Limited Partners | Preferred Units Series A

Partnership Equity

Issuance of units, net (in shares) | shares

25,000

704,000

864,000

Distribution Per Unit Paid (in dollars per share) | $ / shares

$ 0.5611

Limited Partners | Preferred Units Series B

Partnership Equity

Issuance of units, net (in shares) | shares

623,000

1,840,000

Dividend rate (as a percent)

7.90%

Distribution Per Unit Paid (in dollars per share) | $ / shares

$ 0.5321527

Stated liquidation preference / redemption price (in dollars per share) | $ / shares

$ 25

$ 25

$ 25

Limited Partners | Preferred Units Series C

Partnership Equity

Distribution Per Unit Paid (in dollars per share) | $ / shares

$ 0.2090

Distribution date

May 15, 2018

Limited Partners | Preferred Units Series C | Distributions Accruing After May 15, 2025

Partnership Equity

Dividend rate (as a percent)

9.00%

Limited Partners | Preferred Units Series C | Three-month LIBOR | Distributions Accruing Before May 15, 2025

Partnership Equity

Dividend rate (as a percent)

4.698%

Stated liquidation preference / redemption price (in dollars per share) | $ / shares

$ 25

$ 25

$ 25

Limited Partners | Preferred Units Series C | Minimum | Distributions Accruing Before May 15, 2025

Partnership Equity

Dividend rate (as a percent)

7.00%

Limited Partners | At The Market Issuance Sales Agreement | Common Units

Partnership Equity

Aggregate offering price

$ 50,000

Issuance of units, net (in shares) | shares

27,830

240,426

405,156

Proceeds from issuance of unit, before costs

$ 500

$ 4,200

$ 6,900

Limited Partners | At The Market Issuance Sales Agreement | Preferred Units Series A

Partnership Equity

Issuance of units, net (in shares) | shares

24,747

704,445

63,957

Proceeds from issuance of unit, before costs

$ 600

$ 17,700

$ 1,600

Remaining available amount to be issued

$ 20,100

Limited Partners | At The Market Issuance Sales Agreement | Preferred Units Series B

Partnership Equity

Aggregate offering price

$ 50,000

Issuance of units, net (in shares) | shares

0

623,015

0

Proceeds from issuance of unit, before costs

$ 15,600

Remaining available amount to be issued

$ 34,400

Limited Partners | Unit Exchange Program | Common Units

Partnership Equity

Units authorized (in units) | shares

5,000,000

Limited Partners | Unit Exchange Program | Common Units | 28-site acquisition | Wireless Communication

Partnership Equity

Number of common units in connection with acquisition (in shares) | shares

508,157

Limited Partners | Unit Exchange Program | Common Units | 12-site acquisition | Wireless Communication

Partnership Equity

Number of common units in connection with acquisition (in shares) | shares

226,950

Limited Partners | Unit Exchange Program | Common Units | 6-site acquisition | Wireless Communication

Partnership Equity

Number of common units in connection with acquisition (in shares) | shares

172,985

Limited Partners | Public Offering

Partnership Equity

Unit offering price (in dollars per share) | $ / shares

$ 25

Limited Partners | Public Offering | Common Units

Partnership Equity

Issuance of units, net (in shares) | shares

3,450,000

Unit offering price (in dollars per share) | $ / shares

$ 16.30

Unit offering price, net of costs (in dollars per share) | $ / shares

$ 15.53

Offering expenses paid

$ 2,900

Limited Partners | Public Offering | Preferred Units Series A

Partnership Equity

Unit offering price (in dollars per share) | $ / shares

$ 25

Proceeds from the issuance of Preferred Units, net

$ 53,300

$ 18,400

Offering expenses paid

1,600

Value of units issued

$ 20,000

Dividend rate (as a percent)

8.00%

Limited Partners | Public Offering | Preferred Units Series B

Partnership Equity

Issuance of units, net (in shares) | shares

1,840,000

Unit offering price (in dollars per share) | $ / shares

$ 25

Offering expenses paid

$ 1,500

Value of units issued

$ 46,000

Dividend rate (as a percent)

7.90%

Proceeds from the issuance of Common Units, net

$ 44,300

Limited Partners | Public Offering | Preferred Units Series C

Partnership Equity

Issuance of units, net (in shares) | shares

2,000,000

Unit offering price (in dollars per share) | $ / shares

$ 25

Proceeds from the issuance of Preferred Units, net

$ 47,500

Offering expenses paid

$ 2,500

Limited Partners | Underwriters' option | Common Units

Partnership Equity

Issuance of units, net (in shares) | shares

450,000

Limited Partners | Underwriters' option | Preferred Units Series B

Partnership Equity

Issuance of units, net (in shares) | shares

240,000

Equity - Summary of Quarterly D

Equity - Summary of Quarterly Distributions (Details) - USD ($) $ / shares in Units, $ in Thousands

3 Months Ended

Dec. 31, 2018

Sep. 30, 2018

Jun. 30, 2018

Mar. 31, 2018

Dec. 31, 2017

Sep. 30, 2017

Jun. 30, 2017

Mar. 31, 2017

Dec. 31, 2016

Sep. 30, 2016

Jun. 30, 2016

Mar. 31, 2016

Common and Subordinated Units and IDRs

Quarterly distributions

Declaration Date

Jan. 25, 2019

Oct. 26, 2018

Jul. 19, 2018

Apr. 19, 2018

Jan. 24, 2018

Oct. 18, 2017

Jul. 19, 2017

Apr. 20, 2017

Jan. 25, 2017

Oct. 26, 2016

Jul. 27, 2016

Apr. 20, 2016

Distribution Date

Feb. 14, 2019

Nov. 14, 2018

Aug. 14, 2018

May 15, 2018

Feb. 14, 2018

Nov. 14, 2017

Aug. 14, 2017

May 15, 2017

Feb. 15, 2017

Nov. 15, 2016

Aug. 15, 2016

May 13, 2016

Distribution Per Unit Paid (in dollars per share)

$ 0.3675

$ 0.3675

$ 0.3675

$ 0.3675

$ 0.3675

$ 0.3575

$ 0.3550

$ 0.3525

$ 0.3500

$ 0.3375

$ 0.3325

$ 0.3300

Total Distribution Paid

$ 9,312

$ 9,285

$ 9,431

$ 9,384

$ 9,304

$ 8,303

$ 8,222

$ 8,133

$ 7,985

$ 7,628

$ 5,089

$ 4,954

Preferred Units Series A

Quarterly distributions

Declaration Date

Dec. 20, 2018

Sep. 20, 2018

Jun. 21, 2018

Mar. 23, 2018

Dec. 21, 2017

Sep. 21, 2017

Jun. 22, 2017

Mar. 16, 2017

Dec. 16, 2016

Sep. 22, 2016

Jun. 16, 2016

Distribution Date

Jan. 15, 2019

Oct. 15, 2018

Jul. 16, 2018

Apr. 16, 2018

Jan. 16, 2018

Oct. 16, 2017

Jul. 17, 2017

Apr. 17, 2017

Jan. 17, 2017

Oct. 17, 2016

Jul. 15, 2016

Distribution Per Unit Paid (in dollars per share)

$ 0.5000

$ 0.5000

$ 0.5000

$ 0.5000

$ 0.5000

$ 0.5000

$ 0.5000

$ 0.5000

$ 0.5000

$ 0.5000

$ 0.5611

Total Distribution Paid

$ 797

$ 797

$ 797

$ 797

$ 784

$ 713

$ 555

$ 432

$ 432

$ 432

$ 449

Preferred Units Series B

Quarterly distributions

Declaration Date

Jan. 22, 2019

Oct. 22, 2018

Jul. 19, 2018

Apr. 19, 2018

Jan. 22, 2018

Oct. 18, 2017

Jul. 19, 2017

Apr. 20, 2017

Jan. 20, 2017

Oct. 20, 2016

Distribution Date

Feb. 15, 2019

Nov. 15, 2018

Aug. 15, 2018

May 15, 2018

Feb. 15, 2018

Nov. 15, 2017

Aug. 15, 2017

May 15, 2017

Feb. 15, 2017

Nov. 15, 2016

Distribution Per Unit Paid (in dollars per share)

$ 0.4938

$ 0.4938

$ 0.4938

$ 0.4938

$ 0.4938

$ 0.4938

$ 0.4938

$ 0.4938

$ 0.4938

$ 0.5322

Total Distribution Paid

$ 1,216

$ 1,216

$ 1,216

$ 1,216

$ 1,216

$ 1,203

$ 990

$ 934

$ 909

$ 979

Preferred Units Series C

Quarterly distributions

Declaration Date

Jan. 22, 2019

Oct. 22, 2018

Jul. 19, 2018

Distribution Date

Feb. 15, 2019

Nov. 15, 2018

Aug. 15, 2018

Distribution Per Unit Paid (in dollars per share)

$ 0.4571

$ 0.4382

$ 0.4400

Total Distribution Paid

$ 914

$ 876

$ 880

Preferred Units Series C | Prorated Distribution ( April 2, 2018 to May 14, 2018)

Quarterly distributions

Declaration Date

Apr. 19, 2018

Distribution Date

May 15, 2018

Distribution Per Unit Paid (in dollars per share)

$ 0.2090

Total Distribution Paid

$ 418

Equity - Summary of Quarterly_2

Equity - Summary of Quarterly Distributions (Parenthetical) (Details) - Preferred Units Series C	3 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018
Quarterly distributions
Distribution Date	Feb. 15, 2019	Nov. 15, 2018	Aug. 15, 2018
Prorated Distribution ( April 2, 2018 to May 14, 2018)
Quarterly distributions
Prorated period			43 days
Closing date of issuance			Apr. 2, 2018
Distribution Date			May 15, 2018
Record date			May 1, 2018

Net Income (Loss) Per Limited_3

Net Income (Loss) Per Limited Partner Unit - Additional Information (Details) - item	Feb. 15, 2018	Dec. 31, 2018
General Partner | Common Units
Limited Partners Capital Account [Line Items]
Cash distribution declaration date		Mar. 31, 2018
Distribution date		May 15, 2018
Cash distribution record date		May 1, 2018
Landmark Dividend LLC
Limited Partners Capital Account [Line Items]
Number of common units that will convert from each outstanding subordinated unit	1

Net Income (Loss) Per Limited_4

Net Income (Loss) Per Limited Partner Unit - Undistributed Net Loss Attributable to Common and Subordinated Unitholders (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Net income (loss) attributable to partners:
Net income attributable to limited partners	$ (2,179)	$ 105,139	$ 6,097	$ 6,737	$ 9,266	$ 3,794	$ 2,673	$ 3,524	$ 115,794	$ 19,257	$ 9,873
Less: Distributions declared									(10,630)	(6,673)	(2,660)
Incentive distribution rights									(784)	(488)	(110)
Net income attributable to common and subordinated unitholders									104,380	12,096	7,103
General Partner
Net income (loss) attributable to partners:
Incentive distribution rights									(784)	(488)	(110)
Preferred Units
Net income (loss) attributable to partners:
Less: Distributions declared									(10,630)	(6,673)	(2,660)
Common Units
Net income (loss) attributable to partners:
Less: Distributions declared									(37,022)	(28,983)	(21,314)
Net income attributable to common and subordinated unitholders									104,683	10,543	6,367
Undistributed net income (loss)									67,661	(18,440)	(14,947)
Subordinated Units
Net income (loss) attributable to partners:
Less: Distributions declared										(4,491)	(4,232)
Net income attributable to common and subordinated unitholders									(303)	1,553	736
Undistributed net income (loss)									(303)	(2,938)	(3,496)
Common and Subordinated Units
Net income (loss) attributable to partners:
Undistributed net income (loss)									$ 67,358	$ (21,378)	$ (18,443)

Net Income (Loss) Per Limited_5

Net Income (Loss) Per Limited Partner Unit - Net Income (Loss) per Unit (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Net income (loss) attributable to partners:
Distributions declared									$ 10,630	$ 6,673	$ 2,660
Net income attributable to common and subordinated unitholders									$ 104,380	$ 12,096	$ 7,103
Weighted-average units outstanding:
Basic (in shares)									24,626	19,701	13,986
Units - diluted (in shares)									26,967	22,836	17,121
Net income (loss) per common and subordinated unit:
Basic (in dollars per share)									$ 4.25	$ 0.54	$ 0.46
Diluted (in dollars per share)									$ 3.97	$ 0.53	$ 0.41
Common Units
Net income (loss) attributable to partners:
Distributions declared									$ 37,022	$ 28,983	$ 21,314
Undistributed net income (loss)									67,661	(18,440)	(14,947)
Net income attributable to common and subordinated unitholders									104,683	10,543	6,367
Net income (loss) attributable to subordinated units									(303)	1,553	736
Distributions on dilutive preferred units									2,613
Net income (loss) attributable to common and subordinated units - diluted									$ 106,993	$ 12,096	$ 7,103
Weighted-average units outstanding:
Basic (in shares)									24,626	19,701	13,986
Effect of dilutive subordinated units									387	3,135	3,135
Effect of dilutive preferred units									1,954
Units - diluted (in shares)									26,967	22,836	17,121
Net income (loss) per common and subordinated unit:
Basic (in dollars per share)	$ (0.21)	$ 4.06	$ 0.12	$ 0.21	$ 0.31	$ 0.08	$ 0.05	$ 0.09	$ 4.25	$ 0.54	$ 0.46
Diluted (in dollars per share)	$ (0.21)	$ 3.71	$ 0.12	$ 0.19	$ 0.31	$ 0.08	$ 0.05	$ 0.09	$ 3.97	$ 0.53	$ 0.41
Subordinated Units
Net income (loss) attributable to partners:
Distributions declared										$ 4,491	$ 4,232
Undistributed net income (loss)									$ (303)	(2,938)	(3,496)
Net income attributable to common and subordinated unitholders									(303)	1,553	736
Net income (loss) attributable to common and subordinated units - diluted									$ (303)	$ 1,553	$ 736
Weighted-average units outstanding:
Basic (in shares)									387	3,135	3,135
Units - diluted (in shares)									387	3,135	3,135
Net income (loss) per common and subordinated unit:
Basic (in dollars per share)									$ (0.78)	$ 0.50	$ 0.23
Diluted (in dollars per share)									$ (0.78)	$ 0.50	$ 0.23

Net Income (Loss) Per Limited_6

Net Income (Loss) Per Limited Partner Unit - Net Income (Loss) per Unit (Parenthetical) (Details)	Feb. 15, 2018item
Landmark Dividend LLC
Limited Partners Capital Account [Line Items]
Number of common units that will convert from each outstanding subordinated unit	1

Fair Value of Financial Instr_3

Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Carrying Amount
Investment in receivables, net
Investment in receivables, net	$ 18,348	$ 20,782
Carrying Amount | Senior secured revolving credit facility
Debt
Revolving credit facility	155,000	304,000
Carrying Amount | Secured notes
Debt
Secured Notes, net	223,685	187,249
Fair Value
Investment in receivables, net
Investment in receivables, net	18,867	20,995
Fair Value | Senior secured revolving credit facility
Debt
Revolving credit facility	155,000	304,000
Fair Value | Secured notes
Debt
Secured Notes, net	$ 224,333	$ 187,895

Fair Value of Financial Instr_4

Fair Value of Financial Instruments - Assets and Liabilities Carried at Fair Value (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Derivative Liabilities	$ 402
Recurring | Level 2 inputs
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Derivative Assets	4,590	$ 3,159
Derivative Liabilities	$ 402

Related-Party Transactions (Det

Related-Party Transactions (Details)	Jun. 16, 2017	Nov. 30, 2017	Dec. 31, 2018USD ($)	Sep. 30, 2018USD ($)	Dec. 31, 2018USD ($)item$ / shares$ / property	Dec. 31, 2017USD ($)	Dec. 31, 2016USD ($)	Jun. 13, 2017
Related-Party Transactions
Due from Landmark and affiliates			$ 1,390,000		$ 1,390,000	$ 629,000
Incentive Distribution Distribution Rights					$ 784,000	488,000	$ 110,000
Maximum | Unconsolidated Joint Venture | 2018 Secured Notes
Related-Party Transactions
Operating revenue per tenant site | $ / property					46
Incentive Distribution Rights
Related-Party Transactions
Incentive distribution and allocations waived amount			400,000	$ 400,000
Threshold percentage per unit per quarter (in dollars per share) | $ / shares					$ 0.2875
Incentive Distribution Distribution Rights					$ 400,000	500,000	100,000
Incentive Distribution Rights | Maximum
Related-Party Transactions
Percentage of available cash					50.00%
Landmark, General Partner and affiliates
Related-Party Transactions
Due from Landmark and affiliates			1,400,000		$ 1,400,000	600,000
Landmark, General Partner and affiliates | Capped reimbursement for certain general and administrative expenses
Related-Party Transactions
Percentage of revenue (as a percent)					3.00%
Expiration of quarterly cap, measurement period, number of consecutive fiscal quarters (in periods) | item					4
Expiration of quarterly cap, measurement period, minimum revenue					$ 120,000,000
Reimbursement of expenses that exceeded the cap					2,800,000	3,500,000	2,600,000
Due from Landmark and affiliates			$ 100,000		100,000
Indemnification amount					1,000,000
Landmark, General Partner and affiliates | Management fees
Related-Party Transactions
Expense from related party							200,000
American Infrastructure Funds | Patent License Agreement Fees
Related-Party Transactions
Fee for second year of agreement (in dollars per year)					$ 50,000
Maximum fee each year starting in third year of agreement, as a percentage of our gross revenue					0.10%
Minimum fee each year starting in third year of agreement (in dollars per year)					$ 100,000
License fees related to agreement					$ 100,000	$ 100,000	$ 100,000
Type of Cost, Good or Service [Extensible List]					us-gaap:LicenseMember	us-gaap:LicenseMember	us-gaap:LicenseMember
Landmark Dividend LLC | Management fees
Related-Party Transactions
Costs incurred					$ 0	$ 0
Landmark Dividend LLC | Management fees | Acquired Funds | Restatement Adjustment
Related-Party Transactions
Management fees prior to acquisition							$ 200,000
General Partner | 4.38% Senior Secured Notes
Related-Party Transactions
Management fee (as a percent)					0.50%
Interest rate (as a percent)			4.38%		4.38%
General Partner | Management fees
Related-Party Transactions
Costs incurred					$ 53,685	18,451	$ 10,215
General Partner | Management fees | Unconsolidated Joint Venture | 2018 Secured Notes
Related-Party Transactions
Costs incurred					$ 100,000
General Partner | Secured Notes Management Agreement
Related-Party Transactions
Management fee (as a percent)	1.50%	1.50%
General Partner | Secured Notes Management Agreement | Unconsolidated Joint Venture | 2018 Secured Notes
Related-Party Transactions
Management fee (as a percent)					1.50%
Penteon Corporation
Related-Party Transactions
Leasing costs incurred for deployment of LPWAN					$ 0	$ 200,000
Penteon Corporation | Sponsor
Related-Party Transactions
Warrant to purchase maximum number of preferred stock, in percentage								25.00%

Related-Party Transactions - Su

Related-Party Transactions - Summary of Completed Right of First Offer ("ROFO") Acquisitions (Details) $ in Millions	Jan. 18, 2018USD ($)itemshares	Apr. 28, 2017shares	Aug. 30, 2016USD ($)itemshares	Apr. 28, 2017USD ($)itemshares	Dec. 31, 2018USD ($)siteshares	Dec. 31, 2017USD ($)itemsite	Dec. 31, 2016USD ($)site
Related-Party Transactions
Total No. of Tenant Sites | site					104	63	40
Total No. of Investments in Receivables | item						1
Total Consideration | $					$ 75.8	$ 41	$ 85.7
Common units issued to Fund G		221,729
Landmark Dividend Growth Fund G LLC | 2-site acquisition
Related-Party Transactions
Total No. of Tenant Sites | item				2
Total Consideration | $				$ 14.8
Common units issued to Fund G				221,729
Landmark Dividend Growth Fund G LLC | 386-site acquisition
Related-Party Transactions
Total No. of Tenant Sites | item			386
Total No. of Investments in Receivables | item			5
Total Consideration | $			$ 140.3
Common units issued to Fund G			25,220
Landmark Dividend Growth Fund F LLC | 136-site acquisition
Related-Party Transactions
Total No. of Tenant Sites | item	127
Total Consideration | $	$ 59.9
Landmark, General Partner and affiliates | 2-site acquisition
Related-Party Transactions
Common units issued to Fund G					221,729
Landmark, General Partner and affiliates | 386-site acquisition
Related-Party Transactions
Common units issued to Fund G			3,592,430
Landmark, General Partner and affiliates | 136-site acquisition
Related-Party Transactions
Common units issued to Fund G	1,506,421

Related-Party Transactions - _2

Related-Party Transactions - Summary of Completed Right of First Offer ("ROFO") Acquisitions (Parenthetical) (Details) $ in Millions	Apr. 28, 2017USD ($)shares	Mar. 31, 2017USD ($)site	Dec. 31, 2018USD ($)site	Dec. 31, 2017USD ($)site	Dec. 31, 2016USD ($)site
Related-Party Transactions
Number of tenant sites obligated to acquire | site			2
Number of tenant sites acquired | site			104	63	40
Cash consideration | $			$ 68.1	$ 37.2	$ 83.1
Common units issued to Fund G | shares	221,729
1-site acquisition
Related-Party Transactions
Number of tenant sites acquired | site		1
Cash consideration | $	$ 3.8	$ 7.5
2-site acquisition
Related-Party Transactions
Cash consideration | $	$ 11.3

Segment Information - General I

Segment Information - General Information (Details) - segment	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Segment Reporting [Abstract]
Number of reportable segments	3	3	3

Segment Information - Statement

Segment Information - Statements of Operations (Details) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Revenue
Rental revenue	$ 14,714,000	$ 17,560,000	$ 16,796,000	$ 15,695,000	$ 14,482,000	$ 13,499,000	$ 12,803,000	$ 11,841,000	$ 64,765,000	$ 52,625,000	$ 41,171,000
Expenses
Management fees to affiliate											196,000
Property operating									1,147,000	394,000	107,000
General and administrative									4,731,000	5,286,000	3,755,000
Acquisition-related									3,287,000	1,287,000	2,906,000
Amortization									16,152,000	13,537,000	11,191,000
Impairments									1,559,000	848,000	1,275,000
Total expenses									26,876,000	21,352,000	19,430,000
Total other income and expenses									78,159,000	(15,142,000)	(11,820,000)
Income (loss) before income tax expense (benefit)									116,048,000	16,131,000	9,921,000
Income tax expense (benefit)									227,000	(3,145,000)	0
Net income									115,821,000	19,276,000	9,921,000
Operating Segments | Wireless Communication
Revenue
Rental revenue									37,879,000	33,456,000	30,440,000
Expenses
Management fees to affiliate											112,000
Property operating									258,000	22,000	62,000
Acquisition-related										22,000	244,000
Amortization									11,902,000	10,898,000	9,649,000
Impairments									1,169,000	645,000	1,130,000
Total expenses									13,329,000	11,587,000	11,197,000
Total other income and expenses									105,479,000	698,000	1,067,000
Income (loss) before income tax expense (benefit)									130,029,000	22,567,000
Net income									130,029,000	22,567,000	20,310,000
Operating Segments | Outdoor Advertising
Revenue
Rental revenue									18,820,000	11,367,000	8,176,000
Expenses
Management fees to affiliate											83,000
Property operating									681,000	228,000	29,000
Acquisition-related										230,000	52,000
Amortization									3,578,000	2,070,000	1,247,000
Impairments									390,000	203,000	145,000
Total expenses									4,649,000	2,731,000	1,556,000
Total other income and expenses									242,000	144,000
Income (loss) before income tax expense (benefit)									14,413,000	8,780,000
Net income									14,413,000	8,780,000	6,620,000
Operating Segments | Renewable Power Generation
Revenue
Rental revenue									8,066,000	7,802,000	2,555,000
Expenses
Management fees to affiliate											1,000
Property operating									208,000	144,000	16,000
Acquisition-related											25,000
Amortization									672,000	569,000	295,000
Total expenses									880,000	713,000	337,000
Total other income and expenses									811,000	740,000	532,000
Income (loss) before income tax expense (benefit)									7,997,000	7,829,000
Net income									7,997,000	7,829,000	2,750,000
Corporate
Expenses
General and administrative									4,731,000	5,286,000	3,755,000
Acquisition-related									3,287,000	1,035,000	2,585,000
Total expenses									8,018,000	6,321,000	6,340,000
Total other income and expenses									(28,373,000)	(16,724,000)	(13,419,000)
Income (loss) before income tax expense (benefit)									(36,391,000)	(23,045,000)
Income tax expense (benefit)									227,000	(3,145,000)
Net income									$ (36,618,000)	$ (19,900,000)	$ (19,759,000)

Segment Information - Total Ass

Segment Information - Total Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Segment Reporting Asset Reconciling Item [Line Items]
Assets	$ 786,613	$ 767,999
Corporate
Segment Reporting Asset Reconciling Item [Line Items]
Assets	24,695	40,553
Wireless Communication | Operating Segments
Segment Reporting Asset Reconciling Item [Line Items]
Assets	433,254	440,139
Outdoor Advertising | Operating Segments
Segment Reporting Asset Reconciling Item [Line Items]
Assets	216,326	175,825
Renewable Power Generation | Operating Segments
Segment Reporting Asset Reconciling Item [Line Items]
Assets	$ 112,338	$ 111,482

Segment Information - Schedule

Segment Information - Schedule of Rental Revenues by Country (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Segment Reporting Asset Reconciling Item [Line Items]
Rental revenue	$ 14,714	$ 17,560	$ 16,796	$ 15,695	$ 14,482	$ 13,499	$ 12,803	$ 11,841	$ 64,765	$ 52,625	$ 41,171
United States
Segment Reporting Asset Reconciling Item [Line Items]
Rental revenue									60,441	51,144	41,042
United Kingdom
Segment Reporting Asset Reconciling Item [Line Items]
Rental revenue									3,356	814
Australia
Segment Reporting Asset Reconciling Item [Line Items]
Rental revenue									910	614	66
Canada
Segment Reporting Asset Reconciling Item [Line Items]
Rental revenue									$ 58	$ 53	$ 63

Segment Information - Schedul_2

Segment Information - Schedule of Total Assets by Country (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Segment Reporting Asset Reconciling Item [Line Items]
Assets	$ 786,613	$ 767,999
United States
Segment Reporting Asset Reconciling Item [Line Items]
Assets	720,331	729,109
United Kingdom
Segment Reporting Asset Reconciling Item [Line Items]
Assets	53,850	30,391
Australia
Segment Reporting Asset Reconciling Item [Line Items]
Assets	11,830	7,938
Canada
Segment Reporting Asset Reconciling Item [Line Items]
Assets	$ 602	$ 561

Commitments and Contingencies -

Commitments and Contingencies - Real Property Interest Subject to Subordination (Details) $ in Millions	Dec. 31, 2018USD ($)
Commitments And Contingencies Disclosure [Abstract]
Real property interest subject to subordination	$ 69.1

Tenant Concentration (Details)

Tenant Concentration (Details) - Concentration - Tenant Revenue	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Clear Channel Outdoor
Concentration Risk [Line Items]
Percentage of revenue	11.60%	8.80%	5.80%
T-Mobile
Concentration Risk [Line Items]
Percentage of revenue	9.60%	11.70%	13.80%
AT&T Mobility
Concentration Risk [Line Items]
Percentage of revenue	9.30%	11.00%	12.60%
Sprint
Concentration Risk [Line Items]
Percentage of revenue	7.80%	9.50%	11.40%
Crown Castle
Concentration Risk [Line Items]
Percentage of revenue	7.70%	9.20%	10.30%
Verizon
Concentration Risk [Line Items]
Percentage of revenue	7.50%	8.90%	9.70%

Income Taxes - Summary of Incom

Income Taxes - Summary of Income Before Income Tax Benefit by Geographic Area (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Domestic	$ 116,045	$ 15,259	$ 10,554
Foreign	3	872	(633)
Income (loss) before income tax expense (benefit)	$ 116,048	$ 16,131	$ 9,921

Income Taxes - Summary of Inc_2

Income Taxes - Summary of Income Tax Benefit (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Current
Domestic	$ (10,000)
Foreign	15,000	$ 70,000
Deferred
Domestic	370,000	(3,215,000)
Foreign	(148,000)
Income tax expense (benefit)	$ 227,000	$ (3,145,000)	$ 0

Income Taxes (Details)

Income Taxes (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Valuation Allowance [Line Items]
Income tax expense (benefit)	$ 227,000	$ (3,145,000)	$ 0
Statutory federal income tax rate (as a percent)	21.00%	34.00%	34.00%
Foreign income tax rates, low end of range (as a percent)	15.00%	15.00%	15.00%
Foreign income tax rates, high end of range (as a percent)	39.00%	39.00%	39.00%
Deferred tax assets	$ 3,000,000		$ 5,500,000
NOL carryforward		$ 100,000	5,200,000
Deferred tax asset before valuation allowance, domestic	100,000
Deferred tax asset before valuation allowance, foreign	$ 100,000
Decrease in deferred tax asset		1,500,000
Reduction in valuation allowance		5,300,000
Valuation allowance		0	5,300,000
Deferred tax liability		0	0
Deferred tax asset before valuation allowance			2,100,000
Federal NOL carryforwards expiration beginning period	2,035
Unrecognized tax benefit		0	$ 0
Maximum
Valuation Allowance [Line Items]
Deferred tax asset before valuation allowance		$ 100,000
United States
Valuation Allowance [Line Items]
NOL carryforward	$ 400,000
Foreign
Valuation Allowance [Line Items]
NOL carryforward	$ 400,000

Income Taxes - Summary of Recon

Income Taxes - Summary of Reconciliation Between U.S. Statutory Rate and Effective Rate from Income Before Income Tax Benefit (Details)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Statutory federal income tax rate (as a percent)	21.00%	34.00%	34.00%
Adjustment to reflect MLP/REIT status	(21.00%)	(29.00%)
Valuation allowance		(32.00%)
Change in tax law		9.00%
Other		(1.00%)
Effective tax rate		(19.00%)

Supplemental Cash Flow Inform_3

Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	3 Months Ended										12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Noncash activities
Capital contributions from sponsor											$ 1,733	$ 491	$ 545
Issuance of common units for Acquired Funds											7,700	3,800	2,600
Fair value adjustment of investments in receivables													239
Distributions payable to preferred unitholders											1,710	1,296	800
Offering costs included in accounts payable and accrued liabilities													165
Deferred loan costs included in accounts payable and accrued liabilities												285	235
Purchase price for acquisitions and development activities included in accounts payable											2,878	642	405
Investment in unconsolidated joint venture											(65,611)
Total assets contributed to unconsolidated joint venture											157,045
Total liabilities contributed to unconsolidated joint venture											(125,888)
Deemed contribution by the General Partner											394
Deemed distribution to the General Partner											(394)
Cash flows related to interest paid
Cash paid for interest											20,882	15,797	12,349
Capitalized interest											759	48
Income taxes paid											76	28	21
Landmark, General Partner and affiliates
Noncash activities
Purchase price for acquisitions included in due to Landmark and affiliates											436	196	217
Drop-down Acquisitions
Noncash activities
Issuance of common units for Acquired Funds											27,342	3,492	64,664
Unit Exchange Acquisitions
Noncash activities
Issuance of common units for Acquired Funds	$ 900	$ 1,800	$ 1,800	$ 3,200	$ 2,700	$ 1,000	$ 100	$ 900	$ 100	$ 1,600
Unit Exchange Program acquisitions											$ 7,582	$ 3,816	$ 2,639

Quarterly Financial Data (Una_3

Quarterly Financial Data (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Limited Partners Capital Account [Line Items]
Total rental revenue	$ 14,714	$ 17,560	$ 16,796	$ 15,695	$ 14,482	$ 13,499	$ 12,803	$ 11,841	$ 64,765	$ 52,625	$ 41,171
Net income (loss)	(2,172)	105,147	6,105	6,741	9,274	3,798	2,677	3,527
Less: Pre-acquisition net income from Drop-down Assets											48
Less: Net income attributable to noncontrolling interest	7	8	8	4	8	4	4	3	27	19
Net income attributable to limited partners	$ (2,179)	$ 105,139	$ 6,097	$ 6,737	$ 9,266	$ 3,794	$ 2,673	$ 3,524	$ 115,794	$ 19,257	$ 9,873
Net income per common and subordinated unit
Common units – basic									$ 4.25	$ 0.54	$ 0.46
Common units – diluted									3.97	0.53	0.41
Subordinated units – basic and diluted									(0.78)	0.50	0.23
Cash distribution declared per unit	$ 0.3675	$ 0.3675	$ 0.3675	$ 0.3675	$ 0.3675	$ 0.3575	$ 0.3550	$ 0.3525
Common Units
Net income per common and subordinated unit
Common units – basic	(0.21)	4.06	0.12	0.21	0.31	0.08	0.05	0.09	4.25	0.54	0.46
Common units – diluted	$ (0.21)	$ 3.71	$ 0.12	0.19	0.31	0.08	0.05	0.09	3.97	0.53	0.41
Subordinated Units
Net income per common and subordinated unit
Common units – basic									(0.78)	0.50	0.23
Common units – diluted									$ (0.78)	$ 0.50	$ 0.23
Subordinated units – basic and diluted				$ (0.19)	$ 0.28	$ 0.08	$ 0.05	$ 0.09

Subsequent Event (Details)

Subsequent Event (Details) - Subsequent Event	Jan. 30, 2019USD ($)item	Jan. 04, 2019USD ($)
Subsequent Event [Line Items]
Sale of real estate		$ 13,500,000
Capped reimbursement for general and administrative expenses
Subsequent Event [Line Items]
Percentage of revenue (as a percent)	3.00%
Expiration of quarterly cap, measurement period, number of consecutive fiscal quarters (in periods) | item	4
Expiration of quarterly cap, measurement period, minimum revenue	$ 120,000,000

SCHEDULE III - REAL ESTATE AN_2

SCHEDULE III - REAL ESTATE AND ACCUMULATED DEPRECIATION - Real Estate and Accumulated Depreciation by Property (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Initial cost to the Partnership
Land	$ 128,302
Building and improvements	35,159
Total	163,461
Gross Amount at Which Carried at End of Period
Land	128,302
Building and improvements	35,159
Total	163,461	$ 119,539	$ 88,845	$ 12,887
Accumulated depreciation	(623)	$ (13)
Wireless Communication | Wireless Communication, Mound House, NV, 2012, 01
Initial cost to the Partnership
Land	100
Total	100
Gross Amount at Which Carried at End of Period
Land	100
Total	100
Wireless Communication | Wireless Communication, Las Vegas, NV, 2012, 01
Initial cost to the Partnership
Land	536
Total	536
Gross Amount at Which Carried at End of Period
Land	536
Total	536
Wireless Communication | Wireless Communication, Tombstone, AZ, 2012, 01
Initial cost to the Partnership
Land	594
Total	594
Gross Amount at Which Carried at End of Period
Land	594
Total	594
Wireless Communication | Wireless Communication, Walnut Creek, CA, 2013, 01
Initial cost to the Partnership
Land	705
Total	705
Gross Amount at Which Carried at End of Period
Land	705
Total	705
Wireless Communication | Wireless Communication, Los Angeles, CA, 2013, 01
Initial cost to the Partnership
Land	331
Total	331
Gross Amount at Which Carried at End of Period
Land	331
Total	331
Wireless Communication | Wireless Communication, Orlando, FL, 2014, 01
Initial cost to the Partnership
Land	531
Total	531
Gross Amount at Which Carried at End of Period
Land	531
Total	531
Wireless Communication | Wireless Communication, Mary Esther, FL, 2015, 01
Initial cost to the Partnership
Land	262
Total	262
Gross Amount at Which Carried at End of Period
Land	262
Total	262
Wireless Communication | Wireless Communication, Milwaukee, WI, 2015, 01
Initial cost to the Partnership
Land	273
Total	273
Gross Amount at Which Carried at End of Period
Land	273
Total	273
Wireless Communication | Wireless Communication, Appleton, WI, 2017, 01
Initial cost to the Partnership
Land	594
Total	594
Gross Amount at Which Carried at End of Period
Land	594
Total	594
Wireless Communication | Wireless Communication, Encounter Bay, South Australia, 2017, 01
Initial cost to the Partnership
Land	255
Total	255
Gross Amount at Which Carried at End of Period
Land	255
Total	255
Wireless Communication | Wireless Communication, Austin, TX, 2017, 01
Initial cost to the Partnership
Land	745
Building and improvements	3,701
Total	4,446
Gross Amount at Which Carried at End of Period
Land	745
Building and improvements	3,701
Total	4,446
Accumulated depreciation	(97)
Wireless Communication | Wireless Communication, Charlotte, NC, 2017, 01
Initial cost to the Partnership
Land	106
Building and improvements	393
Total	499
Gross Amount at Which Carried at End of Period
Land	106
Building and improvements	393
Total	499
Accumulated depreciation	(10)
Wireless Communication | Wireless Communication, Mars Hill, NC, 2017, 01
Initial cost to the Partnership
Land	117
Total	117
Gross Amount at Which Carried at End of Period
Land	117
Total	117
Wireless Communication | Wireless Communication, Omaha, NE, 2018, 01
Initial cost to the Partnership
Land	2,661
Building and improvements	11,895
Total	14,556
Gross Amount at Which Carried at End of Period
Land	2,661
Building and improvements	11,895
Total	14,556
Accumulated depreciation	(236)
Wireless Communication | Wireless Communication, Hartland, WI, 2018, 01
Initial cost to the Partnership
Land	1,250
Building and improvements	18,110
Total	19,360
Gross Amount at Which Carried at End of Period
Land	1,250
Building and improvements	18,110
Total	19,360
Accumulated depreciation	(244)
Wireless Communication | Wireless Communication, Wiley Park, New South Wales, 2018, 01
Initial cost to the Partnership
Land	337
Total	337
Gross Amount at Which Carried at End of Period
Land	337
Total	337
Wireless Communication | Wireless Communication, Franklin, MA, 2018, 01
Initial cost to the Partnership
Land	1,478
Total	1,478
Gross Amount at Which Carried at End of Period
Land	1,478
Total	1,478
Outdoor Advertising | Outdoor Advertising, Rosemont, IL, 2013, 01
Initial cost to the Partnership
Land	971
Total	971
Gross Amount at Which Carried at End of Period
Land	971
Total	971
Outdoor Advertising | Outdoor Advertising, Gary, IN, 2013, 01
Initial cost to the Partnership
Land	119
Total	119
Gross Amount at Which Carried at End of Period
Land	119
Total	119
Outdoor Advertising | Acquired Funds
Initial cost to the Partnership
Land	168
Total	168
Outdoor Advertising | Outdoor Advertising, Grand Prairie, TX, 2014, 01
Initial cost to the Partnership
Land	301
Total	301
Gross Amount at Which Carried at End of Period
Land	301
Total	301
Outdoor Advertising | Outdoor Advertising, Terrell, TX, 2014, 01
Initial cost to the Partnership
Land	48
Total	48
Gross Amount at Which Carried at End of Period
Land	48
Total	48
Outdoor Advertising | Outdoor Advertising, Phoenix, AZ, 2014, 01
Initial cost to the Partnership
Land	321
Total	321
Gross Amount at Which Carried at End of Period
Land	321
Total	321
Outdoor Advertising | Outdoor Advertising, Houston, TX, 2014, 01
Initial cost to the Partnership
Land	258
Total	258
Gross Amount at Which Carried at End of Period
Land	258
Total	258
Outdoor Advertising | Outdoor Advertising, Saint Petersburg, FL, 2014, 01
Initial cost to the Partnership
Land	200
Total	200
Gross Amount at Which Carried at End of Period
Land	200
Total	200
Outdoor Advertising | Outdoor Advertising, Vadnais Heights, MN, 2014, 01
Initial cost to the Partnership
Land	390
Total	390
Gross Amount at Which Carried at End of Period
Land	390
Total	390
Outdoor Advertising | Outdoor Advertising, West Palm Beach, FL, 2014, 01
Initial cost to the Partnership
Land	94
Total	94
Gross Amount at Which Carried at End of Period
Land	94
Total	94
Outdoor Advertising | Outdoor Advertising, West Palm Beach, FL, 2014, 02
Initial cost to the Partnership
Land	107
Total	107
Gross Amount at Which Carried at End of Period
Land	107
Total	107
Outdoor Advertising | Outdoor Advertising, Chattanooga, TN, 2014, 01
Initial cost to the Partnership
Land	73
Total	73
Gross Amount at Which Carried at End of Period
Land	73
Total	73
Outdoor Advertising | Outdoor Advertising, Monroe, MI, 2014, 01
Initial cost to the Partnership
Land	447
Total	447
Gross Amount at Which Carried at End of Period
Land	447
Total	447
Outdoor Advertising | Outdoor Advertising, Mary Esther, FL, 2015, 01
Initial cost to the Partnership
Land	22
Total	22
Gross Amount at Which Carried at End of Period
Land	22
Total	22
Outdoor Advertising | Outdoor Advertising, Phoenix, AZ, 2015, 01
Initial cost to the Partnership
Land	325
Total	325
Gross Amount at Which Carried at End of Period
Land	325
Total	325
Outdoor Advertising | Outdoor Advertising, London, UK, 2016, 01
Initial cost to the Partnership
Land	3,566
Total	3,566
Gross Amount at Which Carried at End of Period
Land	3,566
Total	3,566
Outdoor Advertising | Outdoor Advertising, Homebush West, New South Wales, 2016, 01
Initial cost to the Partnership
Land	478
Total	478
Gross Amount at Which Carried at End of Period
Land	478
Total	478
Outdoor Advertising | Outdoor Advertising, Golden Square, Victoria, 2016, 01
Initial cost to the Partnership
Land	246
Total	246
Gross Amount at Which Carried at End of Period
Land	246
Total	246
Outdoor Advertising | Outdoor Advertising, Forbes, New South Wales, 2016, 01
Initial cost to the Partnership
Land	30
Total	30
Gross Amount at Which Carried at End of Period
Land	30
Total	30
Outdoor Advertising | Outdoor Advertising, Glasgow, UK, 2017, 01
Initial cost to the Partnership
Land	3,769
Total	3,769
Gross Amount at Which Carried at End of Period
Land	3,769
Total	3,769
Outdoor Advertising | Outdoor Advertising, Salford, UK, 2017, 01
Initial cost to the Partnership
Land	263
Total	263
Gross Amount at Which Carried at End of Period
Land	263
Total	263
Outdoor Advertising | Outdoor Advertising, Leeds, UK, 2017, 01
Initial cost to the Partnership
Land	500
Total	500
Gross Amount at Which Carried at End of Period
Land	500
Total	500
Outdoor Advertising | Outdoor Advertising, Leeds, UK, 2017, 02
Initial cost to the Partnership
Land	2,477
Total	2,477
Gross Amount at Which Carried at End of Period
Land	2,477
Total	2,477
Outdoor Advertising | Outdoor Advertising, London, UK, 2017, 01
Initial cost to the Partnership
Land	3,205
Total	3,205
Gross Amount at Which Carried at End of Period
Land	3,205
Total	3,205
Outdoor Advertising | Outdoor Advertising, Liverpool, UK, 2017, 01
Initial cost to the Partnership
Land	648
Total	648
Gross Amount at Which Carried at End of Period
Land	648
Total	648
Outdoor Advertising | Outdoor Advertising, Barnet, UK, 2017, 01
Initial cost to the Partnership
Land	480
Total	480
Gross Amount at Which Carried at End of Period
Land	480
Total	480
Outdoor Advertising | Outdoor Advertising, Bristol, UK, 2017, 01
Initial cost to the Partnership
Land	5,556
Total	5,556
Gross Amount at Which Carried at End of Period
Land	5,556
Total	5,556
Outdoor Advertising | Outdoor Advertising, Orlando, FL, 2018, 01
Initial cost to the Partnership
Land	180
Total	180
Gross Amount at Which Carried at End of Period
Land	180
Total	180
Outdoor Advertising | Outdoor Advertising, Boston, MA, 2018, 01
Initial cost to the Partnership
Land	480
Total	480
Gross Amount at Which Carried at End of Period
Land	480
Total	480
Outdoor Advertising | Outdoor Advertising, Dallas, TX, 2018, 01
Initial cost to the Partnership
Land	455
Total	455
Gross Amount at Which Carried at End of Period
Land	455
Total	455
Outdoor Advertising | Outdoor Advertising, Lithonia, GA, 2018, 01
Initial cost to the Partnership
Land	184
Total	184
Gross Amount at Which Carried at End of Period
Land	184
Total	184
Outdoor Advertising | Outdoor Advertising, Tampa, FL, 2018, 01
Initial cost to the Partnership
Land	248
Total	248
Gross Amount at Which Carried at End of Period
Land	248
Total	248
Outdoor Advertising | Outdoor Advertising, Manchester, UK, 2018, 01
Initial cost to the Partnership
Land	170
Total	170
Gross Amount at Which Carried at End of Period
Land	170
Total	170
Outdoor Advertising | Outdoor Advertising, Wallangarra,Queensland, 2018, 01
Initial cost to the Partnership
Land	24
Total	24
Gross Amount at Which Carried at End of Period
Land	24
Total	24
Outdoor Advertising | Outdoor Advertising, Capalaba, Queensland 2018, 01
Initial cost to the Partnership
Land	473
Total	473
Gross Amount at Which Carried at End of Period
Land	473
Total	473
Outdoor Advertising | Outdoor Advertising, Liverpool, UK, 2018, 01
Initial cost to the Partnership
Land	117
Total	117
Gross Amount at Which Carried at End of Period
Land	117
Total	117
Outdoor Advertising | Outdoor Advertising, Edinburgh, UK, 2018, 01
Initial cost to the Partnership
Land	113
Total	113
Gross Amount at Which Carried at End of Period
Land	113
Total	113
Outdoor Advertising | Outdoor Advertising, Cardiff, UK, 2018, 01
Initial cost to the Partnership
Land	3,141
Total	3,141
Gross Amount at Which Carried at End of Period
Land	3,141
Total	3,141
Outdoor Advertising | Outdoor Advertising, Manchester, UK, 2018, 01
Initial cost to the Partnership
Land	68
Total	68
Gross Amount at Which Carried at End of Period
Land	68
Total	68
Outdoor Advertising | Outdoor Advertising, Barrow-in-Furness, UK, 2018, 01
Initial cost to the Partnership
Land	84
Total	84
Gross Amount at Which Carried at End of Period
Land	84
Total	84
Outdoor Advertising | Outdoor Advertising, Milsons Point, New South Wales, 2018, 01
Initial cost to the Partnership
Land	3,523
Total	3,523
Gross Amount at Which Carried at End of Period
Land	3,523
Total	3,523
Outdoor Advertising | Outdoor Advertising, Stockton-On-Tees, UK, 2018, 01
Initial cost to the Partnership
Land	46
Total	46
Gross Amount at Which Carried at End of Period
Land	46
Total	46
Outdoor Advertising | Outdoor Advertising, Brighton, MI, 2018, 01
Initial cost to the Partnership
Land	64
Total	64
Gross Amount at Which Carried at End of Period
Land	64
Total	64
Outdoor Advertising | Outdoor Advertising, Birkenhead, England, 2018, 01
Initial cost to the Partnership
Land	16
Total	16
Gross Amount at Which Carried at End of Period
Land	16
Total	16
Outdoor Advertising | Outdoor Advertising, Birmingham, England, 2018, 01
Initial cost to the Partnership
Land	17
Total	17
Gross Amount at Which Carried at End of Period
Land	17
Total	17
Outdoor Advertising | Outdoor Advertising, Glasgow, UK, 2018, 01
Initial cost to the Partnership
Land	34
Total	34
Gross Amount at Which Carried at End of Period
Land	34
Total	34
Outdoor Advertising | Outdoor Advertising, Barrhead, England, 2018, 01
Initial cost to the Partnership
Land	19
Total	19
Gross Amount at Which Carried at End of Period
Land	19
Total	19
Outdoor Advertising | Outdoor Advertising, Manchester, UK, 2018, 01
Initial cost to the Partnership
Land	45
Total	45
Gross Amount at Which Carried at End of Period
Land	45
Total	45
Outdoor Advertising | Outdoor Advertising, Stretford, England, 2018, 01
Initial cost to the Partnership
Land	26
Total	26
Gross Amount at Which Carried at End of Period
Land	26
Total	26
Outdoor Advertising | Outdoor Advertising, Barnsley, England, 2018, 01
Initial cost to the Partnership
Land	106
Total	106
Gross Amount at Which Carried at End of Period
Land	106
Total	106
Outdoor Advertising | Outdoor Advertising, London, UK, 2018, 01
Initial cost to the Partnership
Land	1
Total	1
Gross Amount at Which Carried at End of Period
Land	1
Total	1
Outdoor Advertising | Outdoor Advertising2014 Largo Florida01
Gross Amount at Which Carried at End of Period
Land	168
Total	168
Renewable Power Generation | Renewable Power Generation, West Deptford, NJ, 2015, 01
Initial cost to the Partnership
Land	1,813
Total	1,813
Gross Amount at Which Carried at End of Period
Land	1,813
Total	1,813
Renewable Power Generation | Renewable Power Generation, West Chicago, IL, 2015, 01
Initial cost to the Partnership
Land	1,275
Total	1,275
Gross Amount at Which Carried at End of Period
Land	1,275
Total	1,275
Renewable Power Generation | Renewable Power Generation, Joliet, IL, 2015, 01
Initial cost to the Partnership
Land	1,275
Total	1,275
Gross Amount at Which Carried at End of Period
Land	1,275
Total	1,275
Renewable Power Generation | Renewable Power Generation, Hubbardston, MA, 2015, 01
Initial cost to the Partnership
Land	1,229
Total	1,229
Gross Amount at Which Carried at End of Period
Land	1,229
Total	1,229
Renewable Power Generation | Renewable Power Generation, Valley Center, CA, 2016, 01
Initial cost to the Partnership
Land	880
Total	880
Gross Amount at Which Carried at End of Period
Land	880
Total	880
Renewable Power Generation | Renewable Power Generation, Rosamond, CA, 2016, 01
Initial cost to the Partnership
Land	3,215
Total	3,215
Gross Amount at Which Carried at End of Period
Land	3,215
Total	3,215
Renewable Power Generation | Renewable Power Generation, Rosamond, CA, 2016, 02
Initial cost to the Partnership
Land	41,505
Total	41,505
Gross Amount at Which Carried at End of Period
Land	41,505
Total	41,505
Renewable Power Generation | Renewable Power Generation, Rosamond, CA, 2016, 03
Initial cost to the Partnership
Land	14,136
Total	14,136
Gross Amount at Which Carried at End of Period
Land	14,136
Total	14,136
Renewable Power Generation | Renewable Power Generation, Leemore, CA, 2016, 01
Initial cost to the Partnership
Land	11,267
Total	11,267
Gross Amount at Which Carried at End of Period
Land	11,267
Total	11,267
Renewable Power Generation | Renewable Power Generation, Jacksonville, FL, 2016, 01
Initial cost to the Partnership
Land	731
Total	731
Gross Amount at Which Carried at End of Period
Land	731
Total	731
Renewable Power Generation | Renewable Power Generation, Florence Township, NJ, 2017, 01
Initial cost to the Partnership
Land	2,200
Total	2,200
Gross Amount at Which Carried at End of Period
Land	2,200
Total	2,200
Renewable Power Generation | Renewable Power Generation, Pemberton, NJ, 2017, 01
Initial cost to the Partnership
Land	1,092
Total	1,092
Gross Amount at Which Carried at End of Period
Land	1,092
Total	1,092
Renewable Power Generation | Renewable Power Generation, Ringoes, NJ, 2017, 01
Initial cost to the Partnership
Land	2,113
Total	2,113
Gross Amount at Which Carried at End of Period
Land	2,113
Total	2,113
Renewable Power Generation | Renewable Power Generation, Tehachapi, CA, 2017, 01
Initial cost to the Partnership
Building and improvements	1,060
Total	1,060
Gross Amount at Which Carried at End of Period
Building and improvements	1,060
Total	1,060
Accumulated depreciation	$ (36)

SCHEDULE III - REAL ESTATE AN_3

SCHEDULE III - REAL ESTATE AND ACCUMULATED DEPRECIATION - Summary of Activity for Real Estate and Accumulated Depreciation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Real estate:
Balances at beginning of year	$ 119,539	$ 88,845	$ 12,887
Acquisitions of real estate	52,290	30,305	75,958
Sales and transfers to assets held for sale	(7,044)
Other	(1,324)	389
Balances at end of year	163,461	119,539	$ 88,845
Accumulated depreciation:
Balances at beginning of year	13
Depreciation expense	681	13
Sales and transfers to assets held for sale	(71)
Balances at end of year	$ 623	$ 13

SCHEDULE III - REAL ESTATE AN_4

SCHEDULE III - REAL ESTATE AND ACCUMULATED DEPRECIATION - Aggregate Cost of Real Estate for Federal Income Tax Purposes (Details) $ in Millions	Dec. 31, 2018USD ($)
SCHEDULE III - REAL ESTATE AND ACCUMULATED DEPRECIATION
Aggregate cost of real estate for federal income tax purposes	$ 221.5