New Senior Investment (SNR) 10-Q 10 May 18 2018 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2018	May 04, 2018
Document and Entity Information [Abstract]
Entity Registrant Name	New Senior Investment Group Inc.
Entity Central Index Key	1,610,114
Current Fiscal Year End Date	--12-31
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		82,148,869
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q1
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2018

CONSOLIDATED BALANCE SHEETS (Un

CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Real estate investments:
Land	$ 182,238	$ 182,238
Buildings, improvements and other	2,333,016	2,329,524
Accumulated depreciation	(297,035)	(275,794)
Net real estate property	2,218,219	2,235,968
Acquired lease and other intangible assets	69,139	264,438
Accumulated amortization	(59,406)	(249,198)
Net real estate intangibles	9,733	15,240
Net real estate investments	2,227,952	2,251,208
Cash and cash equivalents	120,834	137,327
Straight-line rent receivables	85,771	82,445
Receivables and other assets, net	38,190	37,047
Total Assets	2,472,747	2,508,027
Liabilities
Mortgage notes payable, net	1,902,901	1,907,928
Due to affiliates	8,957	9,550
Accrued expenses and other liabilities	89,709	84,664
Total Liabilities	2,001,567	2,002,142
Commitments and contingencies (Note 13)
Equity
Preferred Stock $0.01 par value, 100,000,000 shares authorized and none issued or outstanding as of both March 31, 2018 and December 31, 2017	0	0
Common stock $0.01 par value, 2,000,000,000 shares authorized, 82,148,869 shares issued and outstanding as of both March 31, 2018 and December 31, 2017	821	821
Additional paid-in capital	898,135	898,132
Accumulated deficit	(427,776)	(393,068)
Total Equity	471,180	505,885
Total Liabilities and Equity	$ 2,472,747	$ 2,508,027

CONSOLIDATED BALANCE SHEETS (U3

CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - $ / shares	Mar. 31, 2018	Dec. 31, 2017
Equity
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	100,000,000	100,000,000
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	2,000,000,000	2,000,000,000
Common stock, shares issued (in shares)	82,148,869	82,148,869
Common stock, shares outstanding (in shares)	82,148,869	82,148,869

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
Revenues
Resident fees and services		$ 75,343	$ 86,726
Rental revenue		23,875	28,247
Total revenues		99,218	114,973
Expenses
Property operating expense		52,099	59,584
Depreciation and amortization		26,725	37,518
Interest expense		21,923	23,066
Acquisition, transaction and integration expense		2,888	348
Management fees and incentive compensation to affiliate		3,752	3,824
General and administrative expense		3,752	4,011
Loss on extinguishment of debt		0	375
Other expense		1,380	135
Total expenses		112,519	128,861
Gain on sale of real estate		0	4,199
Loss before income taxes		(13,301)	(9,689)
Income tax expense		48	206
Net loss		$ (13,349)	$ (9,895)
Net loss per share of common stock
Earnings per share, basic and diluted	[1]	$ (0.16)	$ (0.12)
Weighted average number of shares of common stock outstanding
Weighted average number of shares outstanding, basic and diluted	[2]	82,148,869	82,140,750
Dividends declared per share of common stock		$ 0.26	$ 0.26
Triple Net Lease Properties [Member]
Revenues
Resident fees and services		$ 0	$ 0
Rental revenue		23,875	28,247
Expenses
Property operating expense		0	0
Managed Properties [Member]
Revenues
Resident fees and services		75,343	86,726
Rental revenue		0	0
Expenses
Property operating expense		$ 52,099	$ 59,584
[1]	Basic earnings per share (“EPS”) is calculated by dividing net income by the weighted average number of shares of common stock outstanding. Diluted EPS is computed by dividing net income by the weighted average number of shares of common stock outstanding plus the additional dilutive effect, if any, of common stock equivalents during each period.
[2]	All outstanding options were excluded from the diluted share calculation as their effect would have been anti-dilutive.

CONSOLIDATED STATEMENT OF CHANG

CONSOLIDATED STATEMENT OF CHANGES IN EQUITY (Unaudited) - 3 months ended Mar. 31, 2018 - USD ($) $ in Thousands	Total	Common Stock [Member]	Accumulated Deficit [Member]	Additional Paid-in Capital [Member]
Equity at Dec. 31, 2017	$ 505,885	$ 821	$ (393,068)	$ 898,132
Equity (in shares) at Dec. 31, 2017	82,148,869	82,148,869
Increase (Decrease) in Equity [Roll Forward]
Fair value of stock options issued	$ 3	$ 0	0	3
Dividends declared	(21,359)	0	(21,359)	0
Net loss	(13,349)	0	(13,349)	0
Equity at Mar. 31, 2018	$ 471,180	$ 821	$ (427,776)	$ 898,135
Equity (in shares) at Mar. 31, 2018	82,148,869	82,148,869

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
Cash Flows From Operating Activities
Net loss		$ (13,349)	$ (9,895)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation of tangible assets and amortization of intangible assets		26,749	37,555
Amortization of deferred financing costs		2,132	2,465
Amortization of deferred revenue, net		331	190
Amortization of premium on mortgage notes payable		0	(144)
Non-cash straight line rent		(3,326)	(4,581)
Gain on sale of real estate		0	(4,199)
Loss on extinguishment of debt		0	375
Provision for uncollectible receivables		345	645
Other non-cash expense		1,322	87
Changes in:
Receivables and other assets, net		(796)	(198)
Due to affiliates		(593)	(549)
Accrued expenses and other liabilities		2,915	(297)
Net cash provided by operating activities		15,730	21,454
Cash Flows From Investing Activities
Proceeds from the sale of real estate, net		0	14,956
Capital expenditures, net of insurance proceeds		(3,561)	(4,386)
Net cash (used in) provided by investing activities		(3,561)	10,570
Cash Flows From Financing Activities
Principal payments of mortgage notes payable		(7,159)	(4,900)
Repayments of mortgage notes payable		0	(14,730)
Payment of exit fee on extinguishment of debt		0	(178)
Payment of deferred financing costs		(587)	0
Purchase of interest rate caps		(280)	0
Payment of common stock dividend		(21,359)	(21,357)
Net cash used in financing activities		(29,385)	(41,165)
Net decrease in cash, cash equivalents and restricted cash		(17,216)	(9,141)
Cash, cash equivalents and restricted cash, beginning of period		157,485	97,517
Cash, cash equivalents and restricted cash, end of period		140,269	88,376
Supplemental Disclosure of Cash Flow Information
Cash paid during the period for interest expense		19,633	20,679
Supplemental Disclosure of Non-Cash Investing and Financing Activities
Issuance of common stock		0	139
Reconciliation of Cash, Cash Equivalents and Restricted Cash
Cash and cash equivalents		137,327	58,048
Restricted cash	[1]	20,158	39,469
Cash, cash equivalents and restricted cash, beginning of period		157,485	97,517
Cash and cash equivalents		120,834	50,338
Restricted cash	[1]	19,435	38,038
Cash, cash equivalents and restricted cash, end of period		$ 140,269	$ 88,376
[1]	Primarily consists of (i) amounts held by lenders in tax, insurance, replacement reserve and other escrow accounts and (ii) security deposits and is included in “Receivables and other assets, net” in the Consolidated Balance Sheets.

ORGANIZATION

ORGANIZATION	3 Months Ended
	Mar. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
ORGANIZATION	ORGANIZATION New Senior is a REIT primarily focused on investing in private pay senior housing properties. As of March 31, 2018 , we owned a diversified portfolio of 133 primarily private pay senior housing properties located across 37 states. We are listed on the New York Stock Exchange (“NYSE”) under the symbol “SNR” and are headquartered in New York, New York. We operate in two reportable segments: (1) Managed Properties and (2) Triple Net Lease Properties. Managed Properties – We have engaged property managers to manage 81 of our properties on a day-to-day basis under the Managed Properties segment. These properties consist of 51 independent living (“IL”) facilities and 30 assisted living/memory care (“AL/MC”) facilities. Our managed properties are managed by Holiday Retirement (“Holiday”), a portfolio company that is majority owned by private equity funds managed by an affiliate of FIG LLC (the “Manager”), a subsidiary of Fortress Investment Group LLC (“Fortress”), FHC Property Management LLC (together with its subsidiaries, “Blue Harbor”), an affiliate of the Manager, Jerry Erwin Associates, Inc. (“JEA”), Thrive Senior Living LLC (“Thrive”), Grace Management, Inc. (“Grace”) and Watermark Retirement Communities, Inc. (“Watermark”), collectively, the “Property Managers,” under property management agreements (the “Property Management Agreements”). Under the Property Management Agreements, the Property Managers are responsible for the day-to-day operations of our senior housing properties and are entitled to a management fee in accordance with the terms of the Property Management Agreements. Our Property Management Agreements have initial five -year or ten -year terms, with successive, automatic one -year renewal periods. We pay property management fees of 5% to 7% of effective gross income pursuant to our Property Management Agreements with Holiday and, in some cases, Holiday is eligible to earn an incentive fee based on operating performance. We pay property management fees of 3 % to 7 % of gross revenues and, for certain properties, i) a property management fee based on a percentage of net operating income and ii) when eligible, an incentive fee based on operating performance, pursuant to our property management agreements with other managers. Triple Net Lease Properties – We own 52 properties subject to triple net lease arrangements (substantially all of which are leased to Holiday). These properties consist of 51 IL properties and 1 rental Continuing Care Retirement Communities (“CCRC”) property. In a triple net lease arrangement, the lessee agrees to operate and maintain the property at its own expense, including maintenance, utilities, taxes, insurance, repairs, capital improvements and the payroll expense of property-level employees. Our triple net lease agreements have initial terms of approximately 15 or 17 years and include renewal options and annual rent increases ranging from 2.5 % to 4.5 %.

SUMMARY OF SIGNIFICANT ACCOUNTI

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	3 Months Ended
	Mar. 31, 2018
Accounting Policies [Abstract]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Basis of Presentation and Principles of Consolidation The accompanying consolidated financial statements are prepared in accordance with U.S. Generally Accepted Accounting Principles (“GAAP’’) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. The consolidated financial statements include the accounts of New Senior and its consolidated subsidiaries. All significant intercompany transactions and balances have been eliminated. We consolidate those entities in which we have control over significant operating, financial and investing decisions of the entity. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. These consolidated financial statements should be read in conjunction with our consolidated financial statements and notes thereto included on Form 10-K for the year ended December 31, 2017 , as filed with the SEC. Certain prior period amounts have been reclassified to conform to the current period’s presentation. Use of Estimates Management is required to make estimates and assumptions when preparing financial statements in conformity with GAAP. These estimates and assumptions affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the accompanying consolidated financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results may differ from management’s estimates. Significant Accounting Policies There were no material changes to our significant accounting policies disclosed in our Form 10-K for the year ended December 31, 2017 . Recently Adopted Accounting Pronouncements On January 1, 2018, we adopted ASU 2014-09, Revenues from Contracts with Customers (“ASC 606”) using the modified retrospective method of adoption. This standard requires revenue to be recognized when promised goods or services are transferred to the customer in an amount that reflects the consideration expected in exchange for those goods or services. The adoption did not result in an adjustment to beginning retained earnings and did not have a significant impact on our consolidated financial statements. Substantially all of our revenue is generated through our triple net lease and managed property leasing arrangements, which are specifically excluded from ASC 606, and are accounted for under other applicable GAAP standards. We account for ancillary revenue under ASC 606. The timing and pattern of revenue recognition of our ancillary revenue under ASC 606 is consistent with that under the prior accounting model. Additionally, real estate sales are within the scope of ASC 606, as amended by ASU 2017-05, Other Income - Gains and Losses from the Derecognition of Nonfinancial Assets (“ASU 2017-05”). ASU 2017-05 clarifies the scope of subtopic 610-20, Other Income - Gains and Losses from Derecognition of Nonfinancial Assets, and adds guidance for partial sales of nonfinancial assets. Under these models, income recognition for real estate sales is largely based on the transfer of control versus continuing involvement under the current guidance. As a result, more transactions may qualify as sales of real estate and gains or losses may be recognized earlier. Sales of our real estate are generally not executory across points in time and our performance obligations from these contracts are expected to fall within a single period. On January 1, 2018, we adopted ASU 2016-18, Statement of Cash Flows (Topic 230) - Restricted Cash , which requires that the statement of cash flows include a reconciliation and explain the change during the period in the total of cash, cash equivalents, and amounts generally described as restricted cash or restricted cash equivalents. This standard impacts the presentation of our Consolidated Statements of Cash Flows as activity between cash and cash equivalents and restricted cash is no longer presented in our operating, financing or investing activities. Upon adoption, the changes in classification within the statement of cash flows is applied retrospectively to all periods presented. The adoption of this standard resulted in a $ 0.4 million decrease to the amount of net cash provided by operating activities and a $ 1.1 million decrease to the amount of net cash provided by investing activities for the three months ended March 31, 2017. On January 1, 2018, we adopted ASU 2016-15, Statement of Cash Flows – Classification of Certain Cash Receipts and Cash Payments , which provides guidance on how certain cash receipts and cash payments are to be presented and classified on the statement of cash flows. The adoption of this standard did not have a material impact on our consolidated financial statements. Recently Issued Accounting Pronouncements Not Yet Adopted In February 2016, the FASB issued ASU 2016-02, Leases . This standard amends the existing accounting standards for lease accounting, including requiring lessees to recognize most leases on their balance sheets and making targeted changes to lessor accounting. The effective date of the standard will be for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018, and early adoption is permitted. The new leases standard requires a modified retrospective transition approach for all leases existing at, or entered into after, the date of initial application, with an option to use certain transition relief. We continue to assess the guidance and the impact it may have on our consolidated financial statements and have initiated a review to identify non-lease components, if any, in our lease agreements. In June 2016, the FASB issued ASU 2016-13, Financial Instruments - Credit Losses, Measurement of Credit Losses on Financial Instruments . This standard replaces the current incurred loss methodology with a methodology that reflects expected credit losses. Under this methodology, a company would recognize an impairment allowance equal to its current estimate of all contractual cash flows that it does not expect to collect from financial assets measured at amortized cost. The effective date of the standard will be for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019, and early adoption is permitted beginning after December 15, 2018. We are assessing the impact this guidance may have on our consolidated financial statements.

DISPOSITIONS

DISPOSITIONS	3 Months Ended
	Mar. 31, 2018
Dispositions [Abstract]
DISPOSITIONS	DISPOSITIONS We did not have any dispositions during the three months ended March 31, 2018 . During the three months ended March 31, 2017 , we sold two AL/MC properties in the Managed Properties segment for a sale price of $ 15.5 million , and recognized a gain on sale of $ 4.2 million , net of selling costs. In connection with this sale, we repaid $ 14.7 million of debt.

SEGMENT REPORTING

SEGMENT REPORTING	3 Months Ended
	Mar. 31, 2018
Segment Reporting [Abstract]
SEGMENT REPORTING	SEGMENT REPORTING We operate in two reportable business segments: Managed Properties and Triple Net Lease Properties. Under our Managed Properties segment, we invest in senior housing properties throughout the United States and engages property managers to manage those senior housing properties. Under our Triple Net Lease Properties segment, we invest in senior housing and healthcare properties throughout the United States and lease those properties to healthcare operating companies under triple net leases that obligate the tenants to pay all property-related expenses, including maintenance, utilities, taxes, insurance, repairs, capital improvements and the payroll expense of property-level employees. We evaluate performance of the combined properties in each reportable business segment based on segment NOI. We define NOI as total revenues less property-level operating expenses, which include property management fees and travel cost reimbursements. We believe that net income, as defined by GAAP, is the most appropriate earnings measurement. However, we believe that segment NOI serves as a useful supplement to net income because it allows investors, analysts and management to measure unlevered property-level operating results and to compare our operating results between periods and to the operating results of other real estate companies on a consistent basis. Segment NOI should not be considered as an alternative to net income as determined in accordance with GAAP. Depreciation and amortization, interest expense, acquisition, transaction and integration expense, management fees and incentive compensation to affiliate, general and administrative expense, loss on extinguishment of debt, other expense, gain on sale of real estate and income tax expense are not allocated to individual segments for purposes of assessing segment performance. There are no intersegment sales or transfers. Three Months Ended March 31, 2018 Three Months Ended March 31, 2017 Triple Net Lease Properties Managed Properties Consolidated Triple Net Lease Properties Managed Consolidated Revenues Resident fees and services $ — $ 75,343 $ 75,343 $ — $ 86,726 $ 86,726 Rental revenue 23,875 — 23,875 28,247 — 28,247 Less: Property operating expense — 52,099 52,099 — 59,584 59,584 Segment NOI $ 23,875 $ 23,244 $ 47,119 $ 28,247 $ 27,142 $ 55,389 Depreciation and amortization 26,725 37,518 Interest expense 21,923 23,066 Acquisition, transaction and integration expense 2,888 348 Management fees and incentive compensation to affiliate 3,752 3,824 General and administrative expense 3,752 4,011 Loss on extinguishment of debt — 375 Other expense 1,380 135 Total expenses 60,420 69,277 Gain on sale of real estate — 4,199 Loss before income taxes (13,301 ) (9,689 ) Income tax expense 48 206 Net loss $ (13,349 ) $ (9,895 ) Property operating expense includes property management fees, property-level payroll expense and travel reimbursement costs. See Note 10 for additional information on these expenses related to Blue Harbor and Holiday. Assets by reportable business segment are reconciled to total assets as follows: March 31, 2018 December 31, 2017 Amount Percentage Amount Percentage Managed Properties $ 1,419,198 57.4 % $ 1,430,957 57.1 % Triple Net Lease Properties 970,246 39.2 % 980,666 39.1 % All other assets (A) 83,303 3.4 % 96,404 3.8 % Total assets $ 2,472,747 100.0 % $ 2,508,027 100.0 % (A) Primarily consists of corporate cash which is not directly attributable to our reportable business segments. Rental revenue attributable to our triple net leases with Holiday accounted for 22.5% and 19.4% of our total revenues for the three months ended March 31, 2018 and 2017 , respectively. The following table presents the percentage of total revenues by geographic location: As of and for the three months ended March 31, 2018 As of and for the three months ended March 31, 2017 Number of Communities % of Total Revenue Number of Communities % of Total Revenue Florida 15 12.9 % 24 19.2 % California 11 11.6 % 11 9.7 % Texas 13 9.2 % 19 12.2 % North Carolina 9 7.5 % 9 6.5 % Pennsylvania 7 7.2 % 7 5.8 % Oregon 9 5.8 % 9 4.8 % Other 69 45.8 % 71 41.8 % Total 133 100.0 % 150 100.0 %

REAL ESTATE INVESTMENTS

REAL ESTATE INVESTMENTS	3 Months Ended
	Mar. 31, 2018
Real Estate [Abstract]
REAL ESTATE INVESTMENTS	REAL ESTATE INVESTMENTS March 31, 2018 December 31, 2017 Gross Carrying Amount Accumulated Depreciation Net Carrying Value Gross Carrying Amount Accumulated Depreciation Net Carrying Value Land $ 182,238 $ — $ 182,238 $ 182,238 $ — $ 182,238 Building and improvements 2,218,277 (224,335 ) 1,993,942 2,216,461 (208,540 ) 2,007,921 Furniture, fixtures and equipment 114,739 (72,700 ) 42,039 113,063 (67,254 ) 45,809 Total real estate investments $ 2,515,254 $ (297,035 ) $ 2,218,219 $ 2,511,762 $ (275,794 ) $ 2,235,968 Depreciation expense was $ 21.2 million and $ 23.2 million for the three months ended March 31, 2018 and 2017 , respectively. The following table summarizes our real estate intangibles: March 31, 2018 December 31, 2017 Gross Carrying Amount Accumulated Amortization Net Carrying Value Weighted Average Remaining Amortization Period Gross Carrying Amount Accumulated Amortization Net Carrying Value Weighted Average Remaining Amortization Period Above/below market lease intangibles, net $ 1,607 $ (404 ) $ 1,203 12.7 years $ 1,607 $ (380 ) $ 1,227 12.9 years In-place lease and other intangibles 67,532 (59,002 ) 8,530 29.4 years 262,831 (248,818 ) 14,013 18.3 years Total intangibles $ 69,139 $ (59,406 ) $ 9,733 $ 264,438 $ (249,198 ) $ 15,240 Amortization expense was $ 5.5 million and $ 14.3 million for the three months ended March 31, 2018 and 2017 , respectively. During the three months ended March 31, 2018 , we wrote-off $ 195.3 million of fully amortized in-place lease and other intangible assets. We evaluated long-lived assets, primarily consisting of our real estate investments, for impairment indicators. In performing this evaluation, market conditions and our current intentions with respect to holding or disposing of the asset are considered. Where indicators of impairment are present, we evaluated whether the sum of the expected future undiscounted cash flows is less than book value. Based on such assessment, the future undiscounted cash flows of the underlying operations exceeds the carrying value of such real estate investments, including definite lived intangible assets. Therefore, we did not recognize any impairment loss during the periods presented.

STRAIGHT-LINE RENT RECEIVABLES

STRAIGHT-LINE RENT RECEIVABLES	3 Months Ended
	Mar. 31, 2018
STRAIGHT-LINE RENT RECEIVABLES [Abstract]
STRAIGHT-LINE RENT RECEIVABLES	STRAIGHT-LINE RENT RECEIVABLES Rental revenue from the Triple Net Lease Properties segment is recognized on a straight-line basis over the applicable term of the lease when collectability is reasonably assured. Recognizing rental revenue on a straight-line basis typically results in recognizing revenue in excess of cash amounts contractually due from our tenants during the first half of the lease term, creating a straight-line rent receivable. Our straight-line rent receivable was $ 85.8 million and $ 82.4 million as of March 31, 2018 and December 31, 2017 , respectively. We assess the collectability of straight-line rent receivables on an ongoing basis. This assessment is based on several qualitative and quantitative factors, including and as appropriate, the payment history of the triple net lease tenant, the tenant’s ability to satisfy its lease obligations, the value of the underlying collateral or deposit, if any, and current economic conditions. We considered the timeliness of lease payments, compliance with lease terms, security and other deposits posted by the tenants and collateral provided by the lease guarantors and determined no reserve was necessary for the periods presented.

RECEIVABLES AND OTHER ASSETS, N

RECEIVABLES AND OTHER ASSETS, NET	3 Months Ended
	Mar. 31, 2018
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
RECEIVABLES AND OTHER ASSETS, NET	RECEIVABLES AND OTHER ASSETS, NET March 31, 2018 December 31, 2017 Escrows held by lenders (A) $ 16,659 $ 16,936 Prepaid expenses 4,355 4,490 Resident receivables, net 2,826 2,672 Deferred tax assets, net 5,413 5,475 Security deposits 2,776 3,222 Income tax receivable 816 802 Other assets and receivables 5,345 3,450 Total receivables and other assets $ 38,190 $ 37,047 (A) Represents amounts held by lenders in tax, insurance, replacement reserve and other escrow accounts that are related to mortgage notes collateralized by New Senior’s properties. The following table summarizes the allowance for doubtful accounts and the related provision for uncollectible receivables: Three Months Ended March 31, 2018 2017 Balance, beginning of period $ 938 $ 976 Provision for uncollectible receivables 345 645 Write-offs, net of recoveries (448 ) (502 ) Balance, end of period $ 835 $ 1,119 The provision for resident receivables and related write-offs are included in “Property operating expense” in the Consolidated Statements of Operations.

MORTGAGE NOTES PAYABLE, NET

MORTGAGE NOTES PAYABLE, NET	3 Months Ended
	Mar. 31, 2018
Debt Disclosure [Abstract]
MORTGAGE NOTES PAYABLE, NET	MORTGAGE NOTES PAYABLE, NET March 31, 2018 December 31, 2017 Outstanding Face Amount Carrying Value (A) Maturity Date Stated Interest Rate Weighted Average Maturity (Years) Outstanding Face Amount Carrying Value (A) Managed Properties Fixed Rate $ 562,985 $ 559,806 Aug 2019 - Sep 2025 3.65% to 4.93% 6.3 $ 563,526 $ 560,182 Floating Rate (B) 638,043 633,668 Oct 2020 - May 2022 1M LIBOR + 2.20% to 1M LIBOR + 2.70% 3.8 640,880 636,166 Triple Net Lease Properties Fixed Rate (C) 666,102 658,686 Jan 2021 - Jan 2024 3.80% to 7.40% 4.1 669,656 660,646 Floating Rate (D) 50,809 50,741 Apr 2019 3M LIBOR + 3.00% 1.1 51,036 50,934 Total $ 1,917,939 $ 1,902,901 4.6 $ 1,925,098 $ 1,907,928 (A) The totals are reported net of deferred financing costs of $ 15.0 million and $ 17.2 million as of March 31, 2018 and December 31, 2017 , respectively. (B) Substantially all of these loans have LIBOR caps that range between 3.30% and 3.71% as of March 31, 2018 . (C) Includes loans with an outstanding face amount of $ 335.0 million and $ 285.1 million , as of March 31, 2018 , for which we bought down the interest rates to 4.00 % and 3.80 %, respectively, through January 2019. The interest rates will increase to 4.99 % and 4.55 %, respectively, thereafter. (D) We have an option to extend the maturity date to April 2020, subject to a fee of 0.125 % of the then-outstanding principal balance. During the three months ended March 31, 2017 , we repaid $ 14.7 million of debt associated with the sale of two properties in the Managed Properties segment and recognized a loss on extinguishment of debt of $ 0.4 million , which represents the write-off of related unamortized deferred financing costs and other exit fees. During the three months ended March 31, 2018 , we exercised an option to extend a balloon payment of $ 50.7 million from April 2018 to April 2019. The carrying value of the collateral relating to the fixed rate and floating rate mortgages was $ 1.5 billion and $ 0.8 billion as of both March 31, 2018 and December 31, 2017 , respectively. Our mortgage notes payable contain various customary financial and other covenants, in some cases including Debt Service Coverage Ratio and Project Yield, as defined in the agreements. We were in compliance with the covenants in our mortgage notes payable agreements as of March 31, 2018 . The fair values of mortgage notes payable as of both March 31, 2018 and December 31, 2017 was $ 1.9 billion . Mortgage notes payable are not measured at fair value in the Consolidated Balance Sheets. The disclosed fair value of mortgage notes payable, classified as level 3 within the fair value hierarchy, is based on a discounted cash flow valuation model. Significant inputs in the model include amounts and timing of expected future cash flows and market yields which are constructed based on inputs implied from similar debt offerings. Interest rate caps During the three months ended March 31, 2018 , we renewed an interest rate cap on our floating rate debt which carries a LIBOR cap rate of 3.66 %, has a notional value of $ 591.2 million and is effective through April 1, 2020. Our interest rate caps are level 2 instruments and we estimate the fair value based on pricing models that consider inputs including forward yield curves, cap strike rates, cap volatility and discount rates. We recognized fair value losses of $ 0.1 million for both the three months ended March 31, 2018 and 2017 which are included in “Other expense” in the Consolidated Statements of Operations and “Other non-cash expense” in the Consolidated Statements of Cash Flows. The fair value was $ 0.2 million as of March 31, 2018 and is included in “Receivables and other assets, net” in the Consolidated Balance Sheets. The fair value as of December 31, 2017 was not material.

ACCRUED EXPENSES AND OTHER LIAB

ACCRUED EXPENSES AND OTHER LIABILITIES	3 Months Ended
	Mar. 31, 2018
Payables and Accruals [Abstract]
ACCRUED EXPENSES AND OTHER LIABILITIES	ACCRUED EXPENSES AND OTHER LIABILITIES March 31, 2018 December 31, 2017 Security deposits payable $ 47,103 $ 46,291 Escrow liabilities (A) 6,100 6,664 Accounts payable 12,105 9,794 Mortgage interest payable 6,455 6,297 Deferred community fees, net 4,772 4,612 Rent collected in advance 2,745 2,091 Property tax payable 3,563 3,331 Other liabilities 6,866 5,584 Total accrued expenses and other liabilities $ 89,709 $ 84,664 (A) Represents amounts held by lenders in tax, insurance, replacement reserve and other escrow accounts that are related to mortgage notes collateralized by New Senior’s triple net lease properties.

TRANSACTIONS WITH AFFILIATES

TRANSACTIONS WITH AFFILIATES	3 Months Ended
	Mar. 31, 2018
Related Party Transactions [Abstract]
TRANSACTIONS WITH AFFILIATES	TRANSACTIONS WITH AFFILIATES Management Agreements We are party to a management agreement (the “Management Agreement”) with the Manager, under which the Manager advises us on various aspects of our business and manages our day-to-day operations, subject to the supervision of our board of directors. For its management services, the Manager is entitled to a base management fee of 1.5 % per annum of our gross equity. Gross equity is generally defined as the equity invested by Drive Shack Inc. (“Drive Shack”) (including cash contributed to us) as of the completion of the spin-off from Drive Shack, plus the aggregate offering price from stock offerings, plus certain capital contributions to subsidiaries, less capital distributions (calculated without regard to depreciation and amortization) and repurchases of common stock, calculated and payable monthly in arrears in cash. We incurred management fees of $ 3.8 million during both the three months ended March 31, 2018 and 2017 , under the Management Agreement, which are included in “Management fees and incentive compensation to affiliate” in the Consolidated Statements of Operations. As of March 31, 2018 and December 31, 2017 , we had a payable for management fees of $ 1.2 million and $ 1.3 million , respectively, which is included in “Due to affiliates” in the Consolidated Balance Sheets. The Manager is entitled to receive, on a quarterly basis, incentive compensation on a cumulative, but not compounding basis, in an amount equal to the product of (A) 25 % of the dollar amount by which (1)(a) funds from operations (as defined in the Management Agreement) before the incentive compensation per share of common stock, plus (b) gains (or losses) from sales of property per share of common stock, plus (c) internal and third party acquisition-related expenses, plus (d) unconsummated transaction expenses, and plus (e) other non-routine items (as defined in the Management Agreement), exceed (2) an amount equal to (a) the weighted average value per share of the equity invested by Drive Shack in the assets of New Senior (including cash contributed to us) as of the completion of the spin-off and the price per share of our common stock in any offerings by us (adjusted for prior capital dividends or capital distributions, which shall be calculated without regard to depreciation and amortization and repurchases of common stock) multiplied by (b) a simple interest rate of 10 % per annum, multiplied by (B) the weighted average number of shares of common stock outstanding. The Manager did not earn incentive compensation during the three months ended March 31, 2018 or 2017 . The Manager is also entitled to receive, upon the successful completion of an equity offering, options with respect to 10% of the number of shares sold in the offering with an exercise price equal to the price paid by the purchaser in the offering. Because the Manager’s employees perform certain legal, accounting, due diligence, asset management and other services that outside professionals or outside consultants otherwise would perform, the Manager is paid or reimbursed, pursuant to the Management Agreement, for the cost of performing such tasks, provided that such costs and reimbursements are no greater than those which would be paid to outside professionals or consultants on an arm’s-length basis. We are also required to pay all operating expenses, except those specifically required to be borne by the Manager under the Management Agreement. We are required to pay expenses that include, but are not limited to, issuance and transaction costs incidental to the sourcing, evaluation, acquisition, management, disposition, and financing of our investments, legal, underwriting, sourcing, asset management and accounting and auditing fees and expenses, the compensation and expenses of independent directors, the costs associated with the establishment and maintenance of any credit facilities and other indebtedness (including commitment fees, legal fees, closing costs, etc.), expenses associated with other securities offerings, the costs of printing and mailing proxies and reports to our stockholders, costs incurred by employees or agents of the Manager for travel on our behalf, costs associated with any computer software or hardware that is used by us, costs to obtain liability insurance to indemnify directors and officers and the compensation and expenses of our transfer agent. The following table summarizes our reimbursement to the Manager for costs incurred for tasks and other services performed by the Manager under the Management Agreement: Three Months Ended March 31, 2018 2017 Included in: General and administrative expense $ 1,777 $ 2,020 Acquisition, transaction and integration expense 487 362 Total reimbursements to the Manager $ 2,264 $ 2,382 As of March 31, 2018 and December 31, 2017 , we had a payable for Manager reimbursements of $ 0.8 million and $ 1.3 million , respectively, which is included in “Due to affiliates” in the Consolidated Balance Sheets. Property Management Agreements Within our Managed Properties segment, we are party to Property Management Agreements with Blue Harbor, an affiliate of Fortress, and Holiday, a portfolio company that is majority owned by a private equity fund managed by an affiliate of Fortress, to manage most of its senior housing properties. Pursuant to these Property Management Agreements, we pay monthly property management fees. For AL/MC properties managed by Blue Harbor and Holiday, we pay management fees equal to 6 % of effective gross income for the first two years and 7 % thereafter. For IL properties managed by Blue Harbor and Holiday, we generally pay management fees equal to 5 % of effective gross income. For certain property management agreements, we may also pay an incentive fee based on operating performance of the properties. No incentive fees were incurred during the three months ended March 31, 2018 and 2017 . Property management fees are included in “Property operating expense” in the Consolidated Statements of Operations. Other amounts paid to affiliated managers that are included in property operating expense are payroll expense and travel reimbursement costs. The payroll expense is structured as a reimbursement to the Property Manager, who is the employer of record. The following table summarizes property management fees and reimbursements paid to Property Managers affiliated with Fortress: Three Months Ended March 31, 2018 2017 Property management fees $ 3,881 $ 4,927 Travel reimbursement costs 56 85 Property-level payroll expenses 19,361 24,891 As of March 31, 2018 and December 31, 2017 , we had payables for property management fees of $ 1.3 million and $ 1.4 million , respectively, and property-level payroll expenses of $ 5.6 million and $ 5.6 million , respectively, which are included in “Due to affiliates” in the Consolidated Balance Sheets. The Property Management Agreements with affiliated managers have initial terms of 5 or 10 years and provide for automatic one -year extensions after the initial term, subject to termination rights. Triple Net Lease Agreements Within our Triple Net Lease segment, we are party to triple net leases with Holiday. Pursuant to the leases, the tenant is required to pay monthly rent payments in accordance with the lease terms. Such payments amounted to $ 19.2 million and $ 18.6 million for the three months ended March 31, 2018 and 2017 , respectively.

INCOME TAXES

INCOME TAXES	3 Months Ended
	Mar. 31, 2018
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES New Senior is organized and conducts its operations to qualify as a REIT under the requirements of the Internal Revenue Code of 1986, as amended (the “Code”). However, certain of our activities are conducted through our taxable REIT subsidiary (“TRS”) and therefore are subject to federal and state income taxes at regular corporate tax rates. The following table presents the provision for income taxes: Three Months Ended March 31, 2018 2017 Current Federal $ (41 ) $ — State and local 27 71 Total current provision (14 ) 71 Deferred Federal 58 95 State and local 4 40 Total deferred provision 62 135 Total provision for income taxes $ 48 $ 206 The following table presents the significant components of deferred tax assets: March 31, 2018 December 31, 2017 Deferred tax assets: Prepaid fees and rent $ 901 $ 790 Net operating losses 4,055 4,050 Deferred rent 728 949 Tax credits — 42 Other 74 99 Total deferred tax assets 5,758 5,930 Less valuation allowance — — Net deferred tax assets 5,758 5,930 Deferred tax liabilities: Depreciation and amortization 345 455 Total deferred tax liabilities 345 455 Total net deferred tax assets $ 5,413 $ 5,475 In assessing the recoverability of deferred tax assets, management considers whether it is more likely than not that some portion or all of the deferred tax assets will not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income by the TRS during the periods in which temporary differences become deductible and before the net operating loss carryforward expires. We have not recorded a valuation allowance against our deferred tax assets as of March 31, 2018 or December 31, 2017 as management believes that it is more likely than not that our deferred tax assets will be realized. On December 22, 2017, the Tax Cuts and Jobs Act (the “Act”) was signed into law. The Act includes a number of significant changes to existing U.S. corporate income tax laws, most notably a reduction of the U.S. corporate income tax rate from 35 percent to 21 percent, effective January 1, 2018. We measure deferred tax assets using enacted tax rates that will apply in the years in which the temporary differences are expected to be recovered or paid. Accordingly, our deferred tax assets were remeasured to reflect the reduction in the U.S. corporate income tax rate, resulting in a non-recurring $ 3.0 million increase in income tax expense for the year ended December 31, 2017 and a corresponding decrease of the same amount in our deferred tax assets as of December 31, 2017.

EQUITY

EQUITY	3 Months Ended
	Mar. 31, 2018
Equity [Abstract]
EQUITY	EQUITY In the first quarter of 2018, strike prices for outstanding options were reduced by $ 1.04 , reflecting the portion of our 2017 dividends which were deemed return of capital. In March 2018, we granted options to a new director relating to 5,000 shares of common stock, the grant date fair value of which was not material. As of March 31, 2018 , approximately 1.3 million shares of our common stock were held by Fortress, through its affiliates, and its principals.

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	3 Months Ended
	Mar. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES	COMMITMENTS AND CONTINGENCIES As of March 31, 2018 , management believes there are no material contingencies that would affect our results of operations, cash flows or financial position. Certain Obligations, Liabilities and Litigation We are and may become subject to various obligations, liabilities, investigations, inquiries and litigation assumed in connection with or arising from our on-going business, as well as acquisitions, sales, leasing and other activities. These obligations and liabilities (including the costs associated with investigations, inquiries and litigation) may be greater than expected or may not be known in advance. Any such obligations or liabilities could have a material adverse effect on our financial position, cash flows and results of operations, particularly if we are not entitled to indemnification, or if a responsible third party fails to indemnify us. Certain Tax-Related Covenants If we are treated as a successor to Drive Shack under applicable U.S. federal income tax rules, and if Drive Shack failed to qualify as a REIT for a taxable year ending on or before December 31, 2015, we could be prohibited from electing to be a REIT. Accordingly, in the separation and distribution agreement entered into to effect our spin-off from Drive Shack (“Separation and Distribution Agreement”), Drive Shack (i) represented that it had no knowledge of any fact or circumstance that would cause us to fail to qualify as a REIT, (ii) covenanted to use commercially reasonable efforts to cooperate with New Senior as necessary to enable us to qualify for taxation as a REIT and receive customary legal opinions concerning REIT status, including providing information and representations to us and our tax counsel with respect to the composition of Drive Shack’s income and assets, the composition of its stockholders and its operation as a REIT, and (iii) covenanted to use its reasonable best efforts to maintain its REIT status for each of Drive Shack’s taxable years ending on or before December 31, 2015 (unless Drive Shack obtains an opinion from a nationally recognized tax counsel or a private letter ruling from the Internal Revenue Service (“IRS”) to the effect that Drive Shack’s failure to maintain its REIT status will not cause us to fail to qualify as a REIT under the successor REIT rule referred to above). Proceedings Indemnified and Defended by Third Parties From time to time, we are party to certain legal actions, regulatory investigations and claims for which third parties are contractually obligated to indemnify, defend and hold us harmless. While we are presently not being defended by any tenant and other obligated third parties in these types of matters, there is no assurance that our tenants, their affiliates or other obligated third parties will defend us in these matters in the future, or that such parties will have sufficient assets, income and access to financing to enable them to satisfy their defense and indemnification obligations to us. Environmental Costs As a commercial real estate owner, we are subject to potential environmental costs. As of March 31, 2018 , management is not aware of any environmental concerns that would have a material adverse effect on our financial position or results of operations. Capital Improvement and Repair Commitments We have agreed to make $ 1.0 million available for capital improvements during the 15 year lease periods to the triple net lease property under Watermark, none of which has been funded as of March 31, 2018 . Upon funding these capital improvements, we will be entitled to a rent increase.

SUBSEQUENT EVENTS

SUBSEQUENT EVENTS	3 Months Ended
	Mar. 31, 2018
Subsequent Events [Abstract]
SUBSEQUENT EVENTS	SUBSEQUENT EVENTS These consolidated financial statements include a discussion of material events, if any, which have occurred subsequent to March 31, 2018 (referred to as subsequent events) through the issuance of the consolidated financial statements. On May 9, 2018, we entered into an agreement (the “Lease Termination Agreement”) to terminate our triple net leases with affiliates of Holiday Retirement (collectively, “Holiday”). In exchange, we will receive $ 116 million of total consideration, including a $ 70 million termination payment and $ 46 million of retained security deposits. The effectiveness of the lease termination is subject to us completing a refinancing of the existing debt on the portfolio, which had an outstanding face amount of approximately $ 666 million and a coupon of 4.15% as of March 31, 2018, on or before May 21, 2018. We expect to refinance the existing debt with a one -year $ 720 million secured loan bearing interest at LIBOR plus 4.0% for the first six months and increasing by 50 basis points after the sixth monthly payment date and by an additional 50 basis points after the ninth monthly payment date. We expect to incur approximately $ 65 million of prepayment fees and expenses refinancing the existing debt. Pursuant to the Lease Termination Agreement, we also agreed to enter into property management agreements with Holiday, whereby Holiday will manage this portfolio.

SUMMARY OF SIGNIFICANT ACCOUN21

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	3 Months Ended
	Mar. 31, 2018
Accounting Policies [Abstract]
Principles of Consolidation	The accompanying consolidated financial statements are prepared in accordance with U.S. Generally Accepted Accounting Principles (“GAAP’’) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. The consolidated financial statements include the accounts of New Senior and its consolidated subsidiaries. All significant intercompany transactions and balances have been eliminated. We consolidate those entities in which we have control over significant operating, financial and investing decisions of the entity. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. These consolidated financial statements should be read in conjunction with our consolidated financial statements and notes thereto included on Form 10-K for the year ended December 31, 2017 , as filed with the SEC.
Reclassifications	Certain prior period amounts have been reclassified to conform to the current period’s presentation.
Use of Estimates	Use of Estimates Management is required to make estimates and assumptions when preparing financial statements in conformity with GAAP. These estimates and assumptions affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the accompanying consolidated financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results may differ from management’s estimates.
Recent Accounting Pronouncements	Recently Adopted Accounting Pronouncements On January 1, 2018, we adopted ASU 2014-09, Revenues from Contracts with Customers (“ASC 606”) using the modified retrospective method of adoption. This standard requires revenue to be recognized when promised goods or services are transferred to the customer in an amount that reflects the consideration expected in exchange for those goods or services. The adoption did not result in an adjustment to beginning retained earnings and did not have a significant impact on our consolidated financial statements. Substantially all of our revenue is generated through our triple net lease and managed property leasing arrangements, which are specifically excluded from ASC 606, and are accounted for under other applicable GAAP standards. We account for ancillary revenue under ASC 606. The timing and pattern of revenue recognition of our ancillary revenue under ASC 606 is consistent with that under the prior accounting model. Additionally, real estate sales are within the scope of ASC 606, as amended by ASU 2017-05, Other Income - Gains and Losses from the Derecognition of Nonfinancial Assets (“ASU 2017-05”). ASU 2017-05 clarifies the scope of subtopic 610-20, Other Income - Gains and Losses from Derecognition of Nonfinancial Assets, and adds guidance for partial sales of nonfinancial assets. Under these models, income recognition for real estate sales is largely based on the transfer of control versus continuing involvement under the current guidance. As a result, more transactions may qualify as sales of real estate and gains or losses may be recognized earlier. Sales of our real estate are generally not executory across points in time and our performance obligations from these contracts are expected to fall within a single period. On January 1, 2018, we adopted ASU 2016-18, Statement of Cash Flows (Topic 230) - Restricted Cash , which requires that the statement of cash flows include a reconciliation and explain the change during the period in the total of cash, cash equivalents, and amounts generally described as restricted cash or restricted cash equivalents. This standard impacts the presentation of our Consolidated Statements of Cash Flows as activity between cash and cash equivalents and restricted cash is no longer presented in our operating, financing or investing activities. Upon adoption, the changes in classification within the statement of cash flows is applied retrospectively to all periods presented. The adoption of this standard resulted in a $ 0.4 million decrease to the amount of net cash provided by operating activities and a $ 1.1 million decrease to the amount of net cash provided by investing activities for the three months ended March 31, 2017. On January 1, 2018, we adopted ASU 2016-15, Statement of Cash Flows – Classification of Certain Cash Receipts and Cash Payments , which provides guidance on how certain cash receipts and cash payments are to be presented and classified on the statement of cash flows. The adoption of this standard did not have a material impact on our consolidated financial statements. Recently Issued Accounting Pronouncements Not Yet Adopted In February 2016, the FASB issued ASU 2016-02, Leases . This standard amends the existing accounting standards for lease accounting, including requiring lessees to recognize most leases on their balance sheets and making targeted changes to lessor accounting. The effective date of the standard will be for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018, and early adoption is permitted. The new leases standard requires a modified retrospective transition approach for all leases existing at, or entered into after, the date of initial application, with an option to use certain transition relief. We continue to assess the guidance and the impact it may have on our consolidated financial statements and have initiated a review to identify non-lease components, if any, in our lease agreements. In June 2016, the FASB issued ASU 2016-13, Financial Instruments - Credit Losses, Measurement of Credit Losses on Financial Instruments . This standard replaces the current incurred loss methodology with a methodology that reflects expected credit losses. Under this methodology, a company would recognize an impairment allowance equal to its current estimate of all contractual cash flows that it does not expect to collect from financial assets measured at amortized cost. The effective date of the standard will be for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019, and early adoption is permitted beginning after December 15, 2018. We are assessing the impact this guidance may have on our consolidated financial statements.

SEGMENT REPORTING (Tables)

SEGMENT REPORTING (Tables)	3 Months Ended
	Mar. 31, 2018
Segment Reporting Information [Line Items]
Segment Reporting	Three Months Ended March 31, 2018 Three Months Ended March 31, 2017 Triple Net Lease Properties Managed Properties Consolidated Triple Net Lease Properties Managed Consolidated Revenues Resident fees and services $ — $ 75,343 $ 75,343 $ — $ 86,726 $ 86,726 Rental revenue 23,875 — 23,875 28,247 — 28,247 Less: Property operating expense — 52,099 52,099 — 59,584 59,584 Segment NOI $ 23,875 $ 23,244 $ 47,119 $ 28,247 $ 27,142 $ 55,389 Depreciation and amortization 26,725 37,518 Interest expense 21,923 23,066 Acquisition, transaction and integration expense 2,888 348 Management fees and incentive compensation to affiliate 3,752 3,824 General and administrative expense 3,752 4,011 Loss on extinguishment of debt — 375 Other expense 1,380 135 Total expenses 60,420 69,277 Gain on sale of real estate — 4,199 Loss before income taxes (13,301 ) (9,689 ) Income tax expense 48 206 Net loss $ (13,349 ) $ (9,895 ) Property operating expense includes property management fees, property-level payroll expense and travel reimbursement costs. See Note 10 for additional information on these expenses related to Blue Harbor and Holiday. Assets by reportable business segment are reconciled to total assets as follows: March 31, 2018 December 31, 2017 Amount Percentage Amount Percentage Managed Properties $ 1,419,198 57.4 % $ 1,430,957 57.1 % Triple Net Lease Properties 970,246 39.2 % 980,666 39.1 % All other assets (A) 83,303 3.4 % 96,404 3.8 % Total assets $ 2,472,747 100.0 % $ 2,508,027 100.0 % (A) Primarily consists of corporate cash which is not directly attributable to our reportable business segments.
Percentage of Total Revenues by Geographic Location	The following table presents the percentage of total revenues by geographic location: As of and for the three months ended March 31, 2018 As of and for the three months ended March 31, 2017 Number of Communities % of Total Revenue Number of Communities % of Total Revenue Florida 15 12.9 % 24 19.2 % California 11 11.6 % 11 9.7 % Texas 13 9.2 % 19 12.2 % North Carolina 9 7.5 % 9 6.5 % Pennsylvania 7 7.2 % 7 5.8 % Oregon 9 5.8 % 9 4.8 % Other 69 45.8 % 71 41.8 % Total 133 100.0 % 150 100.0 %

REAL ESTATE INVESTMENTS (Tables

REAL ESTATE INVESTMENTS (Tables)	3 Months Ended
	Mar. 31, 2018
Real Estate [Abstract]
Real Estate Investments	March 31, 2018 December 31, 2017 Gross Carrying Amount Accumulated Depreciation Net Carrying Value Gross Carrying Amount Accumulated Depreciation Net Carrying Value Land $ 182,238 $ — $ 182,238 $ 182,238 $ — $ 182,238 Building and improvements 2,218,277 (224,335 ) 1,993,942 2,216,461 (208,540 ) 2,007,921 Furniture, fixtures and equipment 114,739 (72,700 ) 42,039 113,063 (67,254 ) 45,809 Total real estate investments $ 2,515,254 $ (297,035 ) $ 2,218,219 $ 2,511,762 $ (275,794 ) $ 2,235,968
Real Estate Intangibles	The following table summarizes our real estate intangibles: March 31, 2018 December 31, 2017 Gross Carrying Amount Accumulated Amortization Net Carrying Value Weighted Average Remaining Amortization Period Gross Carrying Amount Accumulated Amortization Net Carrying Value Weighted Average Remaining Amortization Period Above/below market lease intangibles, net $ 1,607 $ (404 ) $ 1,203 12.7 years $ 1,607 $ (380 ) $ 1,227 12.9 years In-place lease and other intangibles 67,532 (59,002 ) 8,530 29.4 years 262,831 (248,818 ) 14,013 18.3 years Total intangibles $ 69,139 $ (59,406 ) $ 9,733 $ 264,438 $ (249,198 ) $ 15,240

RECEIVABLES AND OTHER ASSETS,24

RECEIVABLES AND OTHER ASSETS, NET (Tables)	3 Months Ended
	Mar. 31, 2018
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Receivables and Other Assets, Net	March 31, 2018 December 31, 2017 Escrows held by lenders (A) $ 16,659 $ 16,936 Prepaid expenses 4,355 4,490 Resident receivables, net 2,826 2,672 Deferred tax assets, net 5,413 5,475 Security deposits 2,776 3,222 Income tax receivable 816 802 Other assets and receivables 5,345 3,450 Total receivables and other assets $ 38,190 $ 37,047 (A) Represents amounts held by lenders in tax, insurance, replacement reserve and other escrow accounts that are related to mortgage notes collateralized by New Senior’s properties.
Allowance for Doubtful Accounts and Related Provision for Resident Receivables	The following table summarizes the allowance for doubtful accounts and the related provision for uncollectible receivables: Three Months Ended March 31, 2018 2017 Balance, beginning of period $ 938 $ 976 Provision for uncollectible receivables 345 645 Write-offs, net of recoveries (448 ) (502 ) Balance, end of period $ 835 $ 1,119

MORTGAGE NOTES PAYABLE, NET (Ta

MORTGAGE NOTES PAYABLE, NET (Tables)	3 Months Ended
	Mar. 31, 2018
Debt Disclosure [Abstract]
Mortgage Notes Payable, Net	March 31, 2018 December 31, 2017 Outstanding Face Amount Carrying Value (A) Maturity Date Stated Interest Rate Weighted Average Maturity (Years) Outstanding Face Amount Carrying Value (A) Managed Properties Fixed Rate $ 562,985 $ 559,806 Aug 2019 - Sep 2025 3.65% to 4.93% 6.3 $ 563,526 $ 560,182 Floating Rate (B) 638,043 633,668 Oct 2020 - May 2022 1M LIBOR + 2.20% to 1M LIBOR + 2.70% 3.8 640,880 636,166 Triple Net Lease Properties Fixed Rate (C) 666,102 658,686 Jan 2021 - Jan 2024 3.80% to 7.40% 4.1 669,656 660,646 Floating Rate (D) 50,809 50,741 Apr 2019 3M LIBOR + 3.00% 1.1 51,036 50,934 Total $ 1,917,939 $ 1,902,901 4.6 $ 1,925,098 $ 1,907,928 (A) The totals are reported net of deferred financing costs of $ 15.0 million and $ 17.2 million as of March 31, 2018 and December 31, 2017 , respectively. (B) Substantially all of these loans have LIBOR caps that range between 3.30% and 3.71% as of March 31, 2018 . (C) Includes loans with an outstanding face amount of $ 335.0 million and $ 285.1 million , as of March 31, 2018 , for which we bought down the interest rates to 4.00 % and 3.80 %, respectively, through January 2019. The interest rates will increase to 4.99 % and 4.55 %, respectively, thereafter. (D) We have an option to extend the maturity date to April 2020, subject to a fee of 0.125 % of the then-outstanding principal balance.

ACCRUED EXPENSES AND OTHER LI26

ACCRUED EXPENSES AND OTHER LIABILITIES (Tables)	3 Months Ended
	Mar. 31, 2018
Payables and Accruals [Abstract]
Accrued Expenses and Other Liabilities	March 31, 2018 December 31, 2017 Security deposits payable $ 47,103 $ 46,291 Escrow liabilities (A) 6,100 6,664 Accounts payable 12,105 9,794 Mortgage interest payable 6,455 6,297 Deferred community fees, net 4,772 4,612 Rent collected in advance 2,745 2,091 Property tax payable 3,563 3,331 Other liabilities 6,866 5,584 Total accrued expenses and other liabilities $ 89,709 $ 84,664 (A) Represents amounts held by lenders in tax, insurance, replacement reserve and other escrow accounts that are related to mortgage notes collateralized by New Senior’s triple net lease properties.

TRANSACTIONS WITH AFFILIATES Tr

TRANSACTIONS WITH AFFILIATES Transactions With Affiliates (Tables)	3 Months Ended
	Mar. 31, 2018
Transactions With Affiliates [Abstract]
Reimbursement to the Manager for Services Performed by the Manager	The following table summarizes our reimbursement to the Manager for costs incurred for tasks and other services performed by the Manager under the Management Agreement: Three Months Ended March 31, 2018 2017 Included in: General and administrative expense $ 1,777 $ 2,020 Acquisition, transaction and integration expense 487 362 Total reimbursements to the Manager $ 2,264 $ 2,382
Property Management Fees and Other Expenses Reimbursed to Property Managers	The following table summarizes property management fees and reimbursements paid to Property Managers affiliated with Fortress: Three Months Ended March 31, 2018 2017 Property management fees $ 3,881 $ 4,927 Travel reimbursement costs 56 85 Property-level payroll expenses 19,361 24,891

INCOME TAXES (Tables)

INCOME TAXES (Tables)	3 Months Ended
	Mar. 31, 2018
Income Tax Disclosure [Abstract]
Provision for Income Taxes	The following table presents the provision for income taxes: Three Months Ended March 31, 2018 2017 Current Federal $ (41 ) $ — State and local 27 71 Total current provision (14 ) 71 Deferred Federal 58 95 State and local 4 40 Total deferred provision 62 135 Total provision for income taxes $ 48 $ 206
Deferred Tax Assets	The following table presents the significant components of deferred tax assets: March 31, 2018 December 31, 2017 Deferred tax assets: Prepaid fees and rent $ 901 $ 790 Net operating losses 4,055 4,050 Deferred rent 728 949 Tax credits — 42 Other 74 99 Total deferred tax assets 5,758 5,930 Less valuation allowance — — Net deferred tax assets 5,758 5,930 Deferred tax liabilities: Depreciation and amortization 345 455 Total deferred tax liabilities 345 455 Total net deferred tax assets $ 5,413 $ 5,475

ORGANIZATION (Details)

ORGANIZATION (Details)	3 Months Ended
	Mar. 31, 2018segmentProperty
Organization [Abstract]
Number of real estate properties	133
Number of states in which properties are located	37
Number of reportable segments | segment	2
Managed Properties [Member]
Organization [Abstract]
Number of real estate properties	81
Extension period after initial term of Property Management Agreements	1 year
Managed Properties [Member] | Minimum [Member]
Organization [Abstract]
Initial term of Property Management Agreements	5 years
Managed Properties [Member] | Maximum [Member]
Organization [Abstract]
Initial term of Property Management Agreements	10 years
Managed Properties [Member] | Holiday [Member] | Minimum [Member]
Organization [Abstract]
Percentage of property's effective gross income paid as property management fees	5.00%
Managed Properties [Member] | Holiday [Member] | Maximum [Member]
Organization [Abstract]
Percentage of property's effective gross income paid as property management fees	7.00%
Managed Properties [Member] | Other Property Managers [Member] | Minimum [Member]
Organization [Abstract]
Percentage of property's gross revenues paid as property management fees	3.00%
Managed Properties [Member] | Other Property Managers [Member] | Maximum [Member]
Organization [Abstract]
Percentage of property's gross revenues paid as property management fees	7.00%
Managed Properties [Member] | Independent Living Properties [Member]
Organization [Abstract]
Number of real estate properties	51
Managed Properties [Member] | Assisted Living and Memory Care Properties [Member]
Organization [Abstract]
Number of real estate properties	30
Triple Net Lease Properties [Member]
Organization [Abstract]
Number of real estate properties	52
Triple Net Lease Properties [Member] | Minimum [Member]
Organization [Abstract]
Term of lease agreements	15 years
Rent increase percentage in lease agreements	2.50%
Triple Net Lease Properties [Member] | Maximum [Member]
Organization [Abstract]
Term of lease agreements	17 years
Rent increase percentage in lease agreements	4.50%
Triple Net Lease Properties [Member] | Independent Living Properties [Member]
Organization [Abstract]
Number of real estate properties	51
Triple Net Lease Properties [Member] | Continuing Care Retirement Communities [Member]
Organization [Abstract]
Number of real estate properties	1

SUMMARY OF SIGNIFICANT ACCOUN30

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) $ in Millions	3 Months Ended
	Mar. 31, 2018USD ($)
Revenue Recognition [Abstract]
Adjustment to net cash provided by operating activities due to adoption of ASU 2016-18	$ 0.4
Adjustment to net cash provided by investing activities due to adoption of ASU 2016-18	$ 1.1

DISPOSITIONS (Details)

DISPOSITIONS (Details) $ in Thousands	Jan. 31, 2017USD ($)Property	Mar. 31, 2018USD ($)	Mar. 31, 2017USD ($)
Discontinued Operations and Disposal Groups [Abstract]
Number of properties sold | Property	2
Sale price	$ 15,500
Gain on sale of real estate	$ 4,199	$ 0	$ 4,199
Early repayment of debt		$ 0	14,730
Mortgages [Member]
Discontinued Operations and Disposal Groups [Abstract]
Early repayment of debt			$ 14,700

SEGMENT REPORTING (Details)

SEGMENT REPORTING (Details) $ in Thousands		Jan. 31, 2017USD ($)	Mar. 31, 2018USD ($)segmentProperty	Mar. 31, 2017USD ($)Property	Dec. 31, 2017USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | segment			2
Assets			$ 2,472,747		$ 2,508,027
Percentage of assets			100.00%		100.00%
Revenues
Resident fees and services			$ 75,343	$ 86,726
Rental revenue			23,875	28,247
Less: Property operating expense			52,099	59,584
Segment NOI			47,119	55,389
Depreciation and amortization			26,725	37,518
Interest expense			21,923	23,066
Acquisition, transaction and integration expense			2,888	348
Management fees and incentive compensation to affiliate			3,752	3,824
General and administrative expense			3,752	4,011
Loss on extinguishment of debt			0	375
Other expense			1,380	135
Total expenses			60,420	69,277
Gain on sale of real estate		$ 4,199	0	4,199
Loss before income taxes			(13,301)	(9,689)
Total provision for income taxes			48	206
Net loss			$ (13,349)	(9,895)
Major Customers [Abstract]
Number of communities | Property			133
Nonsegment and Other [Member]
Segment Reporting Information [Line Items]
Assets	[1]		$ 83,303		$ 96,404
Percentage of assets	[1]		3.40%		3.80%
Triple Net Lease Properties [Member]
Segment Reporting Information [Line Items]
Assets			$ 970,246		$ 980,666
Percentage of assets			39.20%		39.10%
Revenues
Resident fees and services			$ 0	0
Rental revenue			23,875	28,247
Less: Property operating expense			0	0
Segment NOI			$ 23,875	28,247
Major Customers [Abstract]
Number of communities | Property			52
Managed Properties [Member]
Segment Reporting Information [Line Items]
Assets			$ 1,419,198		$ 1,430,957
Percentage of assets			57.40%		57.10%
Revenues
Resident fees and services			$ 75,343	86,726
Rental revenue			0	0
Less: Property operating expense			52,099	59,584
Segment NOI			$ 23,244	$ 27,142
Major Customers [Abstract]
Number of communities | Property			81
Sales Revenue, Net [Member]
Major Customers [Abstract]
Number of communities | Property			133	150
Percentage of revenue			100.00%	100.00%
Sales Revenue, Net [Member] | Florida
Major Customers [Abstract]
Number of communities | Property			15	24
Percentage of revenue			12.90%	19.20%
Sales Revenue, Net [Member] | California
Major Customers [Abstract]
Number of communities | Property			11	11
Percentage of revenue			11.60%	9.70%
Sales Revenue, Net [Member] | Texas
Major Customers [Abstract]
Number of communities | Property			13	19
Percentage of revenue			9.20%	12.20%
Sales Revenue, Net [Member] | North Carolina
Major Customers [Abstract]
Number of communities | Property			9	9
Percentage of revenue			7.50%	6.50%
Sales Revenue, Net [Member] | Pennsylvania
Major Customers [Abstract]
Number of communities | Property			7	7
Percentage of revenue			7.20%	5.80%
Sales Revenue, Net [Member] | Oregon
Major Customers [Abstract]
Number of communities | Property			9	9
Percentage of revenue			5.80%	4.80%
Sales Revenue, Net [Member] | Other
Major Customers [Abstract]
Number of communities | Property			69	71
Percentage of revenue			45.80%	41.80%
Tenant for Holiday Portfolios [Member] | Sales Revenue, Net [Member]
Major Customers [Abstract]
Percentage of revenue			22.50%	19.40%
[1]	Primarily consists of corporate cash which is not directly attributable to our reportable business segments.

REAL ESTATE INVESTMENTS, Real E

REAL ESTATE INVESTMENTS, Real Estate Assets and Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 21,200	$ 23,200
Real Estate Investments, Net [Abstract]
Gross carrying amount	2,515,254		$ 2,511,762
Accumulated depreciation	(297,035)		(275,794)
Net real estate property	2,218,219		2,235,968
Finite-Lived Intangible Assets [Line Items]
Amortization expense	5,500	$ 14,300
Fully amortized in-place lease and other intangibles, write-off	195,300
Real Estate Intangibles [Abstract]
Gross carrying amount	69,139		264,438
Accumulated amortization	(59,406)		(249,198)
Net real estate intangibles	9,733		15,240
Land [Member]
Real Estate Investments, Net [Abstract]
Gross carrying amount	182,238		182,238
Accumulated depreciation	0		0
Net real estate property	182,238		182,238
Building and Improvements [Member]
Real Estate Investments, Net [Abstract]
Gross carrying amount	2,218,277		2,216,461
Accumulated depreciation	(224,335)		(208,540)
Net real estate property	1,993,942		2,007,921
Furniture, Fixtures and Equipment [Member]
Real Estate Investments, Net [Abstract]
Gross carrying amount	114,739		113,063
Accumulated depreciation	(72,700)		(67,254)
Net real estate property	42,039		45,809
Above/Below Market Lease Intangibles, Net [Member]
Real Estate Intangibles [Abstract]
Gross carrying amount	1,607		1,607
Accumulated amortization	(404)		(380)
Net real estate intangibles	$ 1,203		$ 1,227
Weighted average remaining amortization period	12 years 8 months		12 years 11 months
In-Place Lease and Other Intangibles [Member]
Real Estate Intangibles [Abstract]
Gross carrying amount	$ 67,532		$ 262,831
Accumulated amortization	(59,002)		(248,818)
Net real estate intangibles	$ 8,530		$ 14,013
Weighted average remaining amortization period	29 years 5 months		18 years 4 months

STRAIGHT-LINE RENT RECEIVABLES

STRAIGHT-LINE RENT RECEIVABLES (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
STRAIGHT-LINE RENT RECEIVABLES [Abstract]
Straight-line rent receivables	$ 85,771	$ 82,445

RECEIVABLES AND OTHER ASSETS,35

RECEIVABLES AND OTHER ASSETS, NET (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Receivables and Other Assets [Abstract]
Escrows held by lenders	[1]	$ 16,659		$ 16,936
Prepaid expenses		4,355		4,490
Resident receivables, net		2,826		2,672
Deferred tax assets, net		5,413		5,475
Security deposits		2,776		3,222
Income tax receivable		816		802
Other assets and receivables		5,345		3,450
Total receivables and other assets		38,190		$ 37,047
Allowance for Doubtful Accounts [Roll Forward]
Balance, beginning of period		938	$ 976
Provision for uncollectible receivables		345	645
Write-offs, net of recoveries		(448)	(502)
Balance, end of period		$ 835	$ 1,119
[1]	Represents amounts held by lenders in tax, insurance, replacement reserve and other escrow accounts that are related to mortgage notes collateralized by New Senior’s properties.

MORTGAGE NOTES PAYABLE, NET (De

MORTGAGE NOTES PAYABLE, NET (Details) $ in Thousands		3 Months Ended
		Mar. 31, 2018USD ($)		Mar. 31, 2017USD ($)	Dec. 31, 2017USD ($)	Jan. 31, 2017Property
Mortgage Notes Payable [Abstract]
Outstanding face amount		$ 1,917,939			$ 1,925,098
Carrying value	[1]	$ 1,902,901			1,907,928
Weighted average maturity (years)		4 years 7 months
Balloon payment extension fee, percentage		0.125%
Early repayment of debt		$ 0		$ 14,730
Number of properties sold | Property						2
Loss on extinguishment of debt		0		375
Balloon payment		50,700
Interest rate cap, notional value		591,200
Fair value adjustment on interest rate caps		100
Interest rate cap, fair value		200
Mortgage Notes Payable [Member]
Mortgage Notes Payable [Abstract]
Deferred financing costs		15,000			17,200
Early repayment of debt				$ 14,700
Mortgage Notes Payable [Member] | Level 3 [Member]
Mortgage Notes Payable [Abstract]
Fair value of mortgage notes payable		1,900,000			1,900,000
Mortgage Notes Payable [Member] | Fixed Rate [Member]
Mortgage Notes Payable [Abstract]
Carrying value of collateral		1,500,000			1,500,000
Mortgage Notes Payable [Member] | Floating Rate [Member]
Mortgage Notes Payable [Abstract]
Carrying value of collateral		$ 800,000			800,000
Managed Properties [Member] | Mortgage Notes Payable [Member] | LIBOR [Member]
Mortgage Notes Payable [Abstract]
Basis spread on variable rate		3.66%
Managed Properties [Member] | Mortgage Notes Payable [Member] | LIBOR [Member] | Minimum [Member]
Mortgage Notes Payable [Abstract]
Basis spread on variable rate		3.30%
Managed Properties [Member] | Mortgage Notes Payable [Member] | LIBOR [Member] | Maximum [Member]
Mortgage Notes Payable [Abstract]
Basis spread on variable rate		3.71%
Managed Properties [Member] | Mortgage Notes Payable [Member] | Fixed Rate [Member]
Mortgage Notes Payable [Abstract]
Outstanding face amount		$ 562,985			563,526
Carrying value	[1]	$ 559,806			560,182
Stated interest rate		3.65% to 4.93%
Weighted average maturity (years)		6 years 4 months
Managed Properties [Member] | Mortgage Notes Payable [Member] | Fixed Rate [Member] | Minimum [Member]
Debt Instrument [Line Items]
Interest rate		3.65%
Managed Properties [Member] | Mortgage Notes Payable [Member] | Fixed Rate [Member] | Maximum [Member]
Debt Instrument [Line Items]
Interest rate		4.93%
Managed Properties [Member] | Mortgage Notes Payable [Member] | Floating Rate [Member]
Mortgage Notes Payable [Abstract]
Outstanding face amount	[2]	$ 638,043			640,880
Carrying value	[1],[2]	$ 633,668			636,166
Stated interest rate	[2]	1M LIBOR + 2.20% to 1M LIBOR + 2.70%
Weighted average maturity (years)	[2]	3 years 9 months
Managed Properties [Member] | Mortgage Notes Payable [Member] | Floating Rate [Member] | LIBOR [Member] | Minimum [Member]
Mortgage Notes Payable [Abstract]
Basis spread on variable rate		2.20%
Managed Properties [Member] | Mortgage Notes Payable [Member] | Floating Rate [Member] | LIBOR [Member] | Maximum [Member]
Mortgage Notes Payable [Abstract]
Basis spread on variable rate		2.70%
Triple Net Lease Properties [Member] | Mortgage Notes Payable [Member] | Mortgage Loans, Outstanding Face Amount of $335.0 million
Mortgage Notes Payable [Abstract]
Outstanding face amount		$ 335,000
Triple Net Lease Properties [Member] | Mortgage Notes Payable [Member] | Mortgage Loans, Outstanding Face Amount of $335.0 million | Through January 2019 [Member]
Mortgage Notes Payable [Abstract]
Stated interest rate		4.00%
Triple Net Lease Properties [Member] | Mortgage Notes Payable [Member] | Mortgage Loans, Outstanding Face Amount of $335.0 million | After January 2019 [Member]
Mortgage Notes Payable [Abstract]
Stated interest rate		4.99%
Triple Net Lease Properties [Member] | Mortgage Notes Payable [Member] | Mortgage Loans, Outstanding Face Amount $285.1 million
Mortgage Notes Payable [Abstract]
Outstanding face amount		$ 285,100
Triple Net Lease Properties [Member] | Mortgage Notes Payable [Member] | Mortgage Loans, Outstanding Face Amount $285.1 million | Through January 2019 [Member]
Mortgage Notes Payable [Abstract]
Stated interest rate		3.80%
Triple Net Lease Properties [Member] | Mortgage Notes Payable [Member] | Mortgage Loans, Outstanding Face Amount $285.1 million | After January 2019 [Member]
Mortgage Notes Payable [Abstract]
Stated interest rate		4.55%
Triple Net Lease Properties [Member] | Mortgage Notes Payable [Member] | Fixed Rate [Member]
Mortgage Notes Payable [Abstract]
Outstanding face amount	[3]	$ 666,102			669,656
Carrying value	[1],[3]	$ 658,686			660,646
Stated interest rate	[3]	3.80% to 7.40%
Weighted average maturity (years)	[3]	4 years 1 month
Triple Net Lease Properties [Member] | Mortgage Notes Payable [Member] | Fixed Rate [Member] | Minimum [Member]
Debt Instrument [Line Items]
Interest rate		3.80%
Triple Net Lease Properties [Member] | Mortgage Notes Payable [Member] | Fixed Rate [Member] | Maximum [Member]
Debt Instrument [Line Items]
Interest rate		7.40%
Triple Net Lease Properties [Member] | Mortgage Notes Payable [Member] | Floating Rate [Member]
Mortgage Notes Payable [Abstract]
Outstanding face amount		$ 50,809	[4]		51,036
Carrying value	[1]	$ 50,741	[4]		$ 50,934
Stated interest rate		3M LIBOR + 3.00%
Weighted average maturity (years)		1 year 1 month
Triple Net Lease Properties [Member] | Mortgage Notes Payable [Member] | Floating Rate [Member] | LIBOR [Member]
Mortgage Notes Payable [Abstract]
Basis spread on variable rate		3.00%
[1]	The totals are reported net of deferred financing costs of $15.0 million and $17.2 million as of March 31, 2018 and December 31, 2017, respectively.
[2]	ll of these loans have LIBOR caps that range between 3.30% and 3.71% as of March 31, 2018.
[3]	Includes loans with an outstanding face amount of $335.0 million and $285.1 million, as of March 31, 2018, for which we bought down the interest rates to 4.00% and 3.80%, respectively, through January 2019. The interest rates will increase to 4.99% and 4.55%, respectively, thereafter.
[4]	We have an option to extend the maturity date to April 2020, subject to a fee of 0.125% of the then-outstanding principal balance.

ACCRUED EXPENSES AND OTHER LI37

ACCRUED EXPENSES AND OTHER LIABILITIES (Details) - USD ($) $ in Thousands		Mar. 31, 2018	Dec. 31, 2017
Accounts Payable and Accrued Liabilities [Abstract]
Security deposits payable		$ 47,103	$ 46,291
Escrow liabilities	[1]	6,100	6,664
Accounts payable		12,105	9,794
Mortgage interest payable		6,455	6,297
Deferred community fees, net		4,772	4,612
Rent collected in advance		2,745	2,091
Property tax payable		3,563	3,331
Other liabilities		6,866	5,584
Total accrued expenses and other liabilities		$ 89,709	$ 84,664
[1]	Represents amounts held by lenders in tax, insurance, replacement reserve and other escrow accounts that are related to mortgage notes collateralized by New Senior’s triple net lease properties.

TRANSACTIONS WITH AFFILIATES (D

TRANSACTIONS WITH AFFILIATES (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Management Agreements [Abstract]
Management fees and incentive compensation to affiliate	$ 3,752	$ 3,824
Due to affiliates	8,957		$ 9,550
Property Management Agreements [Abstract]
Property management fees	3,881	4,927
Travel reimbursement costs	56	85
Property-level payroll expenses	19,361	24,891
Triple Net Lease Agreements [Abstract]
Rental revenue	$ 23,875	28,247
Manager [Member]
Management Agreements [Abstract]
Management fee rate payable	1.50%
Management fees and incentive compensation to affiliate	$ 3,800	3,800
Percentage used in calculation of annual incentive compensation paid to Manager	25.00%
Interest rate used in calculation of annual incentive compensation paid to Manager	10.00%
Reimbursement to manager for tasks and other services under the management agreement	$ 2,264	2,382
Manager [Member] | General and Administrative Expense [Member]
Management Agreements [Abstract]
Reimbursement to manager for tasks and other services under the management agreement	1,777	2,020
Manager [Member] | Acquisition, Transaction and Integration Expense [Member]
Management Agreements [Abstract]
Reimbursement to manager for tasks and other services under the management agreement	487	362
Manager [Member] | Management Fees Under Management Agreement [Member]
Management Agreements [Abstract]
Due to affiliates	1,200		1,300
Manager [Member] | Reimbursement for Tasks and Other Services Performed Under the Management Agreement [Member]
Management Agreements [Abstract]
Due to affiliates	800		1,300
Property Managers [Member] | Property Management Fees Under Property Management Agreement [Member]
Management Agreements [Abstract]
Due to affiliates	1,300		1,400
Property Managers [Member] | Reimbursement of Property-Level Payroll Expenses Under Property Management Agreement [Member]
Management Agreements [Abstract]
Due to affiliates	$ 5,600		$ 5,600
Managed Properties [Member]
Property Management Agreements [Abstract]
Extension period after initial term of Property Management Agreements	1 year
Triple Net Lease Agreements [Abstract]
Rental revenue	$ 0	0
Managed Properties [Member] | Blue Harbor and Holiday [Member] | Assisted Living and Memory Care Properties [Member]
Property Management Agreements [Abstract]
Percentage of property's gross income paid as property management fees for first two years	6.00%
Percentage of property's gross income paid as property management fees thereafter	7.00%
Initial term of Property Management Agreements	2 years
Managed Properties [Member] | Blue Harbor and Holiday [Member] | Independent Living Properties [Member]
Property Management Agreements [Abstract]
Percentage of property's effective gross income paid as property management fees	5.00%
Managed Properties [Member] | Property Managers [Member]
Property Management Agreements [Abstract]
Extension period after initial term of Property Management Agreements	1 year
Triple Net Lease Properties [Member]
Triple Net Lease Agreements [Abstract]
Rental revenue	$ 23,875	28,247
Triple Net Lease Properties [Member] | Holiday [Member]
Triple Net Lease Agreements [Abstract]
Rental revenue	$ 19,200	$ 18,600
Minimum [Member] | Managed Properties [Member]
Property Management Agreements [Abstract]
Initial term of Property Management Agreements	5 years
Minimum [Member] | Managed Properties [Member] | Property Managers [Member]
Property Management Agreements [Abstract]
Initial term of Property Management Agreements	5 years
Minimum [Member] | Managed Properties [Member] | Holiday [Member]
Property Management Agreements [Abstract]
Percentage of property's effective gross income paid as property management fees	5.00%
Maximum [Member] | Managed Properties [Member]
Property Management Agreements [Abstract]
Initial term of Property Management Agreements	10 years
Maximum [Member] | Managed Properties [Member] | Property Managers [Member]
Property Management Agreements [Abstract]
Initial term of Property Management Agreements	10 years
Maximum [Member] | Managed Properties [Member] | Holiday [Member]
Property Management Agreements [Abstract]
Percentage of property's effective gross income paid as property management fees	7.00%

INCOME TAXES (Details)

INCOME TAXES (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Prior federal corporate income tax rate			35.00%
Federal corporate tax rate under the tax cuts and jobs act			21.00%
Adjustment to deferred tax assets			$ 3,000
Current
Federal	$ (41)	$ 0
State and local	27	71
Total current provision	(14)	71
Deferred
Federal	58	95
State and local	4	40
Total deferred provision	62	135
Total provision for income taxes	48	$ 206
Deferred tax assets:
Prepaid fees and rent	901		790
Net operating losses	4,055		4,050
Deferred rent	728		949
Tax credits	0		42
Other	74		99
Total deferred tax assets	5,758		5,930
Less valuation allowance	0		0
Net deferred tax assets	5,758		5,930
Deferred tax liabilities:
Depreciation and amortization	345		455
Total deferred tax liabilities	345		455
Deferred tax assets, net	$ 5,413		$ 5,475

EQUITY (Details)

EQUITY (Details)	Mar. 31, 2018$ / sharesshares
Equity [Abstract]
Strike price reduction for outstanding options | $ / shares	$ 1.04
Number of options granted to new director	5,000
Fortress Investment Group, LLC [Member]
Related Party Transaction [Line Items]
Common stock outstanding	1,300,000

COMMITMENTS AND CONTINGENCIES (

COMMITMENTS AND CONTINGENCIES (Details) - Triple Net Lease [Member] - Watermark [Member] $ in Thousands	3 Months Ended
	Mar. 31, 2018USD ($)
Capital Improvement and Repair Commitments [Abstract]
Lease period	15 years
Additional Capital Improvements [Member]
Capital Improvement and Repair Commitments [Abstract]
Capital improvements	$ 1,000

SUBSEQUENT EVENTS (Details)

SUBSEQUENT EVENTS (Details) $ in Thousands	May 09, 2018USD ($)	Mar. 31, 2018USD ($)	Mar. 31, 2017USD ($)	Dec. 31, 2017USD ($)
Subsequent Event [Line Items]
Retained security deposits		$ 2,776		$ 3,222
Outstanding face amount		1,917,939		$ 1,925,098
Prepayment penalty on existing debt		$ 0	$ 178
Subsequent Event [Member]
Subsequent Event [Line Items]
Consideration received for the lease termination agreement	$ 116,000
Termination payment associated with the lease termination agreement	70,000
Retained security deposits	46,000
Outstanding face amount	$ 666,000
Coupon rate	4.15%
Loan term	1 year
Outstanding face amount	$ 720,000
Increase in variable rate after six months, in basis points	50
Increase in variable rate after nine months, in basis points	50
Prepayment penalty on existing debt	$ 65,000
LIBOR [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Basis spread on variable rate	4.00%