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Significant Accounting Policies | 12 Months Ended
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Dec. 31, 2018
Accounting Policies [Abstract] |
Significant Accounting Policies | SIGNIFICANT ACCOUNTING POLICIES The Company - National Health Investors, Inc. (“NHI”), established in 1991 as a Maryland corporation, is a self-managed real estate investment trust (“REIT”) specializing in sale-leaseback, joint-venture, mortgage and mezzanine financing of need-driven and discretionary senior housing and medical investments. Our portfolio consists of lease, mortgage and other note investments in independent living facilities, assisted living facilities, entrance-fee communities, senior living campuses, skilled nursing facilities, specialty hospitals and medical office buildings. Other investments have included marketable securities and a joint venture structured to comply with the provisions of the REIT Investment Diversification Empowerment Act of 2007 (“RIDEA”) through which we invested in facility operations managed by independent third-parties. We fund our real estate investments primarily through: (1) operating cash flow, (2) debt offerings, including bank lines of credit and term debt, both unsecured and secured, and (3) the sale of equity securities. Units, beds and square footage disclosures in this annual report on Form 10-K are unaudited. Principles of Consolidation - The accompanying consolidated financial statements include our accounts and the accounts of our wholly-owned subsidiaries, joint ventures, partnerships and consolidated variable interest entities (“VIE”), if any. All intercompany transactions and balances have been eliminated in consolidation. Net income is reduced by the portion of net income attributable to noncontrolling interests. A VIE is broadly defined as an entity with one or more of the following characteristics: (a) the total equity investment at risk is insufficient to finance the entity’s activities without additional subordinated financial support; (b) as a group, the holders of the equity investment at risk lack (i) the ability to make decisions about the entity’s activities through voting or similar rights, (ii) the obligation to absorb the expected losses of the entity, or (iii) the right to receive the expected residual returns of the entity; or (c) the equity investors have voting rights that are not proportional to their economic interests, and substantially all of the entity’s activities either involve, or are conducted on behalf of, an investor that has disproportionately few voting rights. We apply Financial Accounting Standards Board (“FASB”) guidance for our arrangements with VIEs which requires us to identify entities for which control is achieved through means other than voting rights and to determine which business enterprise is the primary beneficiary of the VIE. In accordance with FASB guidance, management must evaluate each of the Company’s contractual relationships which creates a variable interest in other entities. If the Company has a variable interest and the entity is a VIE, then management must determine whether the Company is the primary beneficiary of the VIE. If it is determined that the Company is the primary beneficiary, NHI consolidates the VIE. We identify the primary beneficiary of a VIE as the enterprise that has both: (i) the power to direct the activities of the VIE that most significantly impact the entity’s economic performance; and (ii) the obligation to absorb losses or the right to receive benefits of the VIE that could be significant to the entity. We perform this analysis on an ongoing basis. If, after consideration of the VIE accounting lit eratu re, the Company has determined that an entity is not a VIE, the Company assesses the need for consolidation under all other provi s ion s of ASC 810. These provisions provide for consolidation of majority-owned en titie s through a majority voti ng interest held by the Company providing control. At December 31, 2018, we held an interest in six unconsolidated VIEs. Because we generally lack either directly or through related parties any material input in the activities that most significantly impact their economic performance, we have concluded that NHI is not the primary beneficiary. Accordingly, we account for our transactions with these entities and their subsidiaries at amortized cost. Our VIEs are summarized below by date of initial involvement. For further discussion of the nature of the relationships, including the sources of our exposure to these VIEs, see the notes to our consolidated financial statements cross-referenced below.
Date | Name | Source of Exposure | Carrying Amount | Maximum Exposure to Loss | Note Reference
2012 | Bickford Senior Living | Various 1 | $ | 53,649,000 |  | $ | 77,878,000 |  | Notes 2, 3
2014 | Senior Living Communities | Notes and straight-line receivable | $ | 44,376,000 |  | $ | 57,475,000 |  | Notes 2, 3
2014 | Life Care Services affiliate | Notes receivable | $ | 57,939,000 |  | $ | 59,781,000 |  | Note 3
2016 | Senior Living Management | Notes and straight-line receivable | $ | 26,584,000 |  | $ | 26,584,000 |  | Note 3
2017 | Evolve Senior Living | Note receivable | $ | 9,928,000 |  | $ | 9,928,000 |  | —
2018 | Life Care Services affiliate | Notes receivable | $ | 85,017,000 |  | $ | 178,200,000 |  | Note 3
1 Notes, straight-line rent receivables & unamortized lease incentives We are not obligated to provide support beyond our stated commitments to these tenants and borrowers whom we classify as VIEs, and accordingly our maximum exposure to loss from these relationships is limited to the amount of our commitments, as shown above and discussed in the notes. When the above relationships involve leases, some additional exposure to economic loss is present. Generally, additional economic loss on a lease, if any, would be limited to that resulting from a short period of arrearage and non-payment of monthly rent before we are able to take effective remedial action, as well as costs incurred in transitioning the lease. The potential extent of such loss will be dependent upon individual facts and circumstances, cannot be quantified, and is therefore not included in the tabulation above. Typically, the only carrying amounts involving our leases are accumulated straight-line receivables. We apply FASB guidance related to investments in joint ventures based on the type of controlling rights held by the members’ interests in limited liability companies that may preclude consolidation by the majority equity owner in certain circumstances in which the majority equity owner would otherwise consolidate the joint venture. We have structured our joint ventures to be compliant with the provisions of RIDEA which permits NHI to receive rent payments through a triple-net lease between a property company and an operating company and allows NHI the opportunity to capture additional value on the improving performance of the operating company through distributions to a taxable REIT subsidiary (“TRS”). Accordingly, prior to the termination of our joint venture on September 30, 2016, our TRS held NHI’s equity interest in an unconsolidated operating company, which we did not control, thus providing an organizational structure that allowed the TRS to engage in a broad range of activities and share in revenues that were otherwise non-qualifying income under the REIT gross income tests. Noncontrolling Interest - We have excluded net income attributable to the noncontrolling interest from net income attributable to common shareholders in our Consolidated Statement of Income for the year ended December 31, 2016. As of December 31, 2018 and during the years ended December 31, 2018 and December 31, 2017, there were no noncontrolling interests. Equity-Method Investment - Through September 30, 2016, we reported our TRS investment in an unconsolidated entity, over whose operating and financial policies we had the ability to exercise significant influence but not control, under the equity method of accounting. Under this accounting method, our pro rata share of the entity’s earnings or losses was included in our Consolidated Statements of Income. Additionally, we adjusted our investment carrying amount to reflect our share of changes in the equity-method investee’s capital resulting from its capital transactions. On September 30, 2016, we unwound the joint venture underlying the TRS and ceased participation in the operations which comprised all its activity. Use of Estimates - The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the U.S. requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Earnings Per Share - The weighted average number of common shares outstanding during the reporting period is used to calculate basic earnings per common share. Diluted earnings per common share assume the exercise of stock options using the treasury stock method, to the extent dilutive. Diluted earnings per share also incorporate the potential dilutive impact of our 3.25% convertible senior notes due 2021. We apply the treasury stock method to our convertible debt instruments, the effect of which is that conversion will not be assumed for purposes of computing diluted earnings per share unless the average share price of our common stock for the period exceeds the conversion price per share. Fair Value Measurements - Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants at the measurement date. A three-level fair value hierarchy is required to prioritize the inputs used to measure fair value. This hierarchy requires entities to maximize the use of observable inputs and minimize the use of unobservable inputs. The three levels of inputs used to measure fair value are as follows: Level 1 - Quoted prices in active markets for identical assets or liabilities. Level 2 - Observable inputs other than quoted prices included in Level 1, such as quoted prices for similar assets and liabilities in active markets; quoted prices for identical or similar assets and liabilities in markets that are not active; or other inputs that are observable or can be corroborated by observable market data. Level 3 - Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. This includes certain pricing models, discounted cash flow methodologies and similar techniques that use significant unobservable inputs. If the fair value measurement is based on inputs from different levels of the hierarchy, the level within which the entire fair value measurement falls is the lowest level input that is significant to the fair value measurement in its entirety. Our assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment and considers factors specific to the asset or liability. When an event or circumstance alters our assessment of the observability and thus the appropriate classification of an input to a fair value measurement which we deem to be significant to the fair value measurement as a whole, we will transfer that fair value measurement to the appropriate level within the fair value hierarchy. Real Estate Properties - Real estate properties are recorded at cost or, if acquired through business combination, at fair value, including the fair value of contingent consideration, if any. Cost or fair value at the time of acquisition is allocated among land, buildings, improvements, lease and other intangibles, and personal property. For properties acquired in transactions accounted for as asset purchases, the purchase price allocation is based on the relative fair values of the assets acquired. Cost includes the amount of contingent consideration, if any, deemed to be probable at the acquisition date. Contingent consideration is deemed to be probable to the extent that a significant reversal in amounts recognized is not likely to occur when the uncertainty associated with the contingent consideration is subsequently resolved. Cost also includes capitalized interest during construction periods. We use the straight-line method of depreciation for buildings over their estimated useful lives of 40 years, and improvements over their estimated useful lives ranging to 25 years. For contingent consideration arising from business combinations, the liability is adjusted to estimated fair value at each reporting date through earnings. For contingent consideration arising from asset acquisitions, the liability is adjusted to the amount considered probable each reporting period, with changes reflected as an adjustment to the basis of the related assets. We evaluate the recoverability of the carrying value of our real estate properties on a property-by-property basis. On a quarterly basis, we review our properties for recoverability when events or circumstances, including significant physical changes in the property, significant adverse changes in general economic conditions and significant deteriorations of the underlying cash flows of the property, indicate that the carrying amount of the property may not be recoverable. The need to recognize an impairment charge is based on estimated undiscounted future cash flows from a property compared to the carrying value of that property. If recognition of an impairment charge is necessary, it is measured as the amount by which the carrying amount of the property exceeds the fair value of the property. Mortgage and Other Notes Receivable - Each quarter, we evaluate the carrying values of our notes receivable on an instrument-by-instrument basis for recoverability when events or circumstances, including the non-receipt of contractual principal and interest payments, significant deteriorations of the financial condition of the borrower and significant adverse changes in general economic conditions, indicate that the carrying amount of the note receivable may not be recoverable. If a note receivable becomes more than 30 days delinquent as to contractual principal or interest payments, the loan is classified as non-performing, and thereafter we recognize all amounts due when received. If necessary, an impairment is measured as the amount by which the carrying amount exceeds the discounted cash flows expected to be received under the note receivable or, if foreclosure is probable, the fair value of the collateral securing the note receivable. Cash and Cash Equivalents and Restricted Cash - Cash equivalents consist of all highly liquid investments with an original maturity of three months or less. Restricted cash includes amounts required to be held on deposit in accordance with agency agreements governing our Fannie Mae and HUD mortgages. The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the Company’s Consolidated Balance Sheets with the same amounts shown on the Company’s Consolidated Statements of Cash Flows (in thousands):
| As of December 31,
| 2018 |  | 2017
Cash and cash equivalents | $ | 4,659 |  |  | $ | 3,063 |
Restricted cash | 5,253 |  |  | 5,012 |
| $ | 9,912 |  |  | $ | 8,075 |
Concentration of Credit Risks - Our credit risks primarily relate to cash and cash equivalents and investments in mortgage and other notes receivable. Cash and cash equivalents are primarily held in bank accounts and overnight investments. We maintain our bank deposit accounts with large financial institutions in amounts that often exceed federally-insured limits. We have not experienced any losses in such accounts. Our mortgages and other notes receivable consist primarily of secured loans on facilities. Our financial instruments, principally our investments in notes receivable, are subject to the possibility of loss of the carrying values as a result of the failure of other parties to perform according to their contractual obligations which may make the instruments less valuable. We obtain collateral in the form of mortgage liens and other protective rights for notes receivable and continually monitor these rights in order to reduce such possibilities of loss. We evaluate the need to provide for reserves for potential losses on our financial instruments based on management’s periodic review of our portfolio on an instrument-by-instrument basis. Deferred Loan Costs - Costs incurred to acquire debt are amortized by the effective interest method over the term of the related debt. Deferred Income - Deferred income primarily includes non-refundable lease commitment fees received by us, which are amortized into income over the expected period of the related loan or lease. In the event that our financing commitment to a potential borrower or lessee expires, the related commitment fees are recognized into income immediately. Commitment fees may be charged based on the terms of the lease agreements and the creditworthiness of the parties. Rental Income - Base rental income is recognized using the straight-line method over the term of the lease to the extent that lease payments are considered collectible. Under certain leases, we receive additional contingent rent, which is calculated on the increase in revenues of the lessee over a base year or base quarter. We recognize contingent rent annually or quarterly based on the actual revenues of the lessee once the target threshold has been achieved. Lease payments that depend on a factor directly related to future use of the property, such as an increase in annual revenues over a base year, are considered to be contingent rentals and are excluded from the schedule of minimum lease payments. If rental income calculated on a straight-line basis exceeds the cash rent due under a lease, the difference is recorded as an increase to straight-line rent receivable in the Consolidated Balance Sheets and an increase in rental income in the Consolidated Statements of Income. If rental income on a straight-line basis is calculated to be less than cash received, there is a decrease in the same accounts. Rental income is reduced for the non-cash amortization of payments made upon the eventual settlement of commitments and contingencies originally identified and recorded as lease inducements. We record contingent consideration arising from lease inducements to the extent that it is probable that a significant reversal of amounts recognized will not occur when the uncertainty associated with the contingent consideration is subsequently resolved. We identify a lease as non-performing if a required payment is not received within 30 days of the date it is due. Our policy related to rental income on non-performing leased real estate properties is to recognize rental income in the period when the related cash is received. Interest Income from Mortgage and Other Notes Receivable - Interest income is recognized based on the interest rates and principal amounts outstanding on the notes receivable. Under certain notes, we receive additional contingent interest, which is calculated on the increase in the current year revenues of a borrower over a base year. We identify a mortgage loan as non-performing if a required payment is not received within 30 days of the date it is due. Our policy related to mortgage interest income on non-performing mortgage loans is to recognize mortgage interest income in the period when the cash is received. As of December 31, 2018, we had not identified any of our mortgages as non-performing. Derivatives - In the normal course of business, we are subject to risk from adverse fluctuations in interest rates. We have chosen to manage this risk through the use of derivative financial instruments, primarily interest rate swaps. Counterparties to these contracts are major financial institutions. We are exposed to credit loss in the event of nonperformance by these counterparties. We do not use derivative instruments for trading or speculative purposes. Our objective in managing exposure to market risk is to limit the impact on cash flows. To qualify for hedge accounting, our interest rate swaps must effectively reduce the risk exposure that they are designed to hedge. In addition, at inception of a qualifying cash flow hedging relationship, the underlying transaction or transactions must be, and be expected to remain, probable of occurring in accordance with our related assertions. All of our hedges are cash flow hedges. We recognize all derivative instruments, including embedded derivatives required to be bifurcated, as assets or liabilities at their fair value in the Consolidated Balance Sheets. Changes in the fair value of derivative instruments that are not designated as hedges or that do not meet the criteria of hedge accounting are recognized in earnings. For derivatives designated in qualifying cash flow hedging relationships, the change in fair value of the effective portion of the derivatives is recognized in accumulated other comprehensive income (loss), whereas the change in fair value of the ineffective portion is recognized in earnings. Gains and losses are reclassified from accumulated other comprehensive income (loss) into earnings once the underlying hedged transaction is recognized in earnings. Federal Income Taxes - We intend at all times to qualify as a REIT under Sections 856 through 860 of the Internal Revenue Code of 1986, as amended. Until 2016, we recorded income tax expense or benefit with respect to one of our subsidiaries which was taxed under provisions similar to those applicable to regular corporations. Aside from such income taxes which may be applicable to the taxable income in the TRS, we will not be subject to U.S. federal income tax, provided that we continue to qualify as a REIT and make distributions to stockholders at least equal to or in excess of 90% our taxable income. Accordingly, no provision for federal income taxes has been made in the consolidated financial statements, except for the provision on the taxable income of the TRS, which is included in our consolidated statements of income under the caption, “Income tax expense of taxable REIT subsidiary.” Our failure to continue to qualify under the applicable REIT qualification rules and regulations would have a material adverse impact on our financial position, results of operations and cash flows. Earnings and profits, which determine the taxability of dividends to stockholders, differ from net income reported for financial reporting purposes due primarily to differences in the basis of assets, estimated useful lives used to compute depreciation expense, gains on sales of real estate, non-cash compensation expense and recognition of commitment fees. Our tax returns filed for years beginning in 2015 are subject to examination by taxing authorities. We classify interest and penalties related to uncertain tax positions, if any, in our consolidated financial statements as a component of income tax expense. Segment Disclosures - We are in the business of owning and financing health care properties. We are managed as one segment, rather than multiple segments, for internal purposes and for internal decision making. Reclassifications - We have reclassified certain balances where necessary to conform the presentation of prior periods to the current period. These reclassifications had no effect on previously reported net income. New Accounting Pronouncements - For a review of recent accounting pronouncements pertinent to our operations and management’s judgment as to the impact that the eventual adoption of these pronouncements will have on our financial position and results of operation, see Note 14.

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