10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC  20549

FORM 10-Q

☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2016

OR

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

Commission File Number 1-15319

SENIOR HOUSING PROPERTIES TRUST

(Exact Name of Registrant as Specified in Its Charter)

Maryland	04-3445278
(State or Other Jurisdiction of Incorporation or Organization)	(IRS Employer Identification No.)

Two Newton Place, 255 Washington Street, Suite 300, Newton, MA 02458-1634

(Address of Principal Executive Offices) (Zip Code)

617-796-8350

(Registrant’s Telephone Number, Including Area Code)

Indicate by check mark whether the registrant:  (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.  Yes ☒  No ☐

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).  Yes ☒  No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company.  See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.  (Check One):

Large accelerated filer ☒	Accelerated filer ☐
Non—accelerated filer ☐	Smaller reporting company ☐
(Do not check if a smaller reporting company)

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).  Yes ☐  No ☒

Number of registrant’s common shares outstanding as of November 3, 2016:237,546,042

SENIOR HOUSING PROPERTIES TRUST

FORM 10-Q

September 30, 2016

INDEX

		Page
PART I	Financial Information
Item 1.	Financial Statements (unaudited)	1
	Condensed Consolidated Balance Sheets — September 30, 2016 and December 31, 2015	1
	Condensed Consolidated Statements of Comprehensive Income — Three and Nine Months Ended September 30, 2016 and 2015	2
	Condensed Consolidated Statements of Cash Flows — Nine Months Ended September 30, 2016 and 2015	3
	Notes to Condensed Consolidated Financial Statements	4
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	21
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	46
Item 4.	Controls and Procedures	49
	Warning Concerning Forward Looking Statements	50
	Statement Concerning Limited Liability	54
PART II	Other Information	55
Item 1A.	Risk Factors	55
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	55
Item 6.	Exhibits	55
	Signatures	57

References in this Quarterly Report on Form 10-Q to the Company, we, us or our include Senior Housing Properties Trust and its consolidated subsidiaries unless otherwise expressly stated or the context indicates otherwise.

PART I. Financial Information

Item 1.  Financial Statements.

SENIOR HOUSING PROPERTIES TRUST

CONDENSED CONSOLIDATED BALANCE SHEETS

(amounts in thousands, except share and per share data)

(unaudited)

	September 30,			December 31,
	2016			2015
ASSETS
Real estate properties:
Land	$	798,343		$	781,426
Buildings and improvements	6,869,576			6,675,514
	7,667,919			7,456,940
Accumulated depreciation	(1,280,778		)	(1,147,540		)
	6,387,141			6,309,400
Cash and cash equivalents	40,773			37,656
Restricted cash	6,325			6,155
Acquired real estate leases and other intangible assets, net	532,205			604,286
Other assets, net	263,654			202,593
Total assets	$	7,230,098		$	7,160,090
LIABILITIES AND SHAREHOLDERS’ EQUITY
Unsecured revolving credit facility	$	215,000		$	775,000
Unsecured term loans, net	546,869			546,305
Senior unsecured notes, net	1,722,032			1,478,536
Secured debt and capital leases, net	1,168,827			679,295
Accrued interest	33,130			16,974
Assumed real estate lease obligations, net	109,164			115,363
Other liabilities	196,108			188,857
Total liabilities	3,991,130			3,800,330
Commitments and contingencies
Shareholders’ equity:
Common shares of beneficial interest, $.01 par value: 300,000,000 shares authorized, 237,546,042 and 237,471,559 shares issued and outstanding at September 30, 2016 and December 31, 2015, respectively	2,375			2,375
Additional paid in capital	4,533,492			4,531,703
Cumulative net income	1,576,000			1,477,590
Cumulative other comprehensive income (loss)	24,318			(32,537		)
Cumulative distributions	(2,897,217		)	(2,619,371		)
Total shareholders’ equity	3,238,968			3,359,760
Total liabilities and shareholders’ equity	$	7,230,098		$	7,160,090

See accompanying notes.

1

SENIOR HOUSING PROPERTIES TRUST

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(amounts in thousands, except per share data)

(unaudited)

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2016			2015			2016			2015
Revenues:
Rental income	$	165,503		$	158,863		$	490,922		$	460,193
Residents fees and services	98,480			96,412			292,803			271,061
Total revenues	263,983			255,275			783,725			731,254
Expenses:
Property operating expenses	103,347			96,927			298,776			276,313
Depreciation and amortization	72,344			70,016			214,938			186,234
General and administrative	12,107			10,316			34,931			32,563
Acquisition and certain other transaction related costs	824			742			1,443			6,517
Impairment of assets	4,578			(98		)	16,930			(98		)
Total expenses	193,200			177,903			567,018			501,529
Operating income	70,783			77,372			216,707			229,725
Dividend income	659			—			1,449			—
Interest and other income	89			57			330			274
Interest expense	(43,438		)	(38,989		)	(123,837		)	(112,838		)
Loss on early extinguishment of debt	(84		)	(21		)	(90		)	(1,469		)
Income from continuing operations before income tax expense and equity in earnings (losses) of an investee	28,009			38,419			94,559			115,692
Income tax expense	(119		)	(146		)	(318		)	(385		)
Equity in earnings (losses) of an investee	13			(24		)	107			70
Income from continuing operations	27,903			38,249			94,348			115,377
Discontinued operations:
Loss from discontinued operations	—			—			—			(350		)
Impairment of assets from discontinued operations	—			—			—			(602		)
Income before gain on sale of properties	27,903			38,249			94,348			114,425
Gain on sale of properties	—			—			4,061			—
Net income	$	27,903		$	38,249		$	98,409		$	114,425
Other comprehensive income:
Unrealized gain (loss) on investments in available for sale securities	16,562			(7,242		)	56,680			(4,407		)
Equity in unrealized gain (loss) of an investee	80			(72		)	175			(91		)
Other comprehensive income	16,642			(7,314		)	56,855			(4,498		)
Comprehensive income	$	44,545		$	30,935		$	155,264		$	109,927
Weighted average common shares outstanding (basic)	237,347			237,263			237,329			231,454
Weighted average common shares outstanding (diluted)	237,396			237,293			237,369			231,486
Per common share amounts (basic and diluted):
Income from continuing operations	$	0.12		$	0.16		$	0.41		$	0.50
Loss from discontinued operations	—			—			—			(0.01		)
Net income	$	0.12		$	0.16		$	0.41		$	0.49

See accompanying notes.

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SENIOR HOUSING PROPERTIES TRUST

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(amounts in thousands)

(unaudited)

	Nine Months Ended
	September 30,
	2016			2015
Cash flows from operating activities:
Net income	$	98,409		$	114,425
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization	214,938			186,234
Amortization of deferred financing fees and debt discounts and premiums	4,272			4,541
Straight line rental income	(13,598		)	(13,739		)
Amortization of acquired real estate leases and other intangible assets	(3,795		)	(3,461		)
Loss on early extinguishment of debt	90			1,469
Impairment of assets	16,930			504
Gain on sale of properties	(4,061		)	—
Gain on sale of investments	—			(71		)
Other non-cash adjustments	(2,828		)	(1,714		)
Equity in earnings of an investee	(107		)	(70		)
Change in assets and liabilities:
Restricted cash	(170		)	2,365
Other assets	2,990			(9,561		)
Accrued interest	16,156			13,616
Other liabilities	13,170			26,303
Cash provided by operating activities	342,396			320,841
Cash flows from investing activities:
Real estate acquisitions and deposits	(188,523		)	(1,132,760		)
Real estate improvements	(72,455		)	(55,983		)
Investment in The RMR Group Inc.	—			(16,588		)
Proceeds from sale of properties	29,179			2,755
Proceeds from sale of investments	—			6,571
Cash used for investing activities	(231,799		)	(1,196,005		)
Cash flows from financing activities:
Proceeds from issuance of common shares, net	—			659,496
Proceeds from issuance of senior unsecured notes	250,000			—
Proceeds from unsecured term loans	—			200,000
Proceeds from borrowings on revolving credit facility	505,000			1,308,000
Proceeds from issuance of secured debt	620,000			—
Repayments of borrowings on revolving credit facility	(1,065,000		)	(920,243		)
Repayment of other debt	(127,202		)	(70,087		)
Loss on early extinguishment of debt settled in cash	—			(1,448		)
Payment of debt issuance costs	(12,016		)	(2,758		)
Repurchase of common shares	(416		)	(212		)
Distributions to shareholders	(277,846		)	(263,770		)
Cash (used for) provided by financing activities	(107,480		)	908,978
Increase in cash and cash equivalents	3,117			33,814
Cash and cash equivalents at beginning of period	37,656			27,594
Cash and cash equivalents at end of period	$	40,773		$	61,408
Supplemental cash flows information:
Interest paid	$	103,409		$	94,681
Income taxes paid	363			477
Non-cash investing activities:
Investment funded by issuance of common shares	—			(44,461		)
Acquisitions funded by assumed debt	—			(181,432		)
Non-cash financing activities:
Assumption of mortgage notes payable	—			181,432
Issuance of common shares	—			47,691

See accompanying notes.

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SENIOR HOUSING PROPERTIES TRUST

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

(dollar amounts in thousands, except per share data or as otherwise stated)

Note 1.  Basis of Presentation

The accompanying condensed consolidated financial statements of Senior Housing Properties Trust and its subsidiaries, or we, us, or our, are unaudited.  Certain information and disclosures required by U.S. generally accepted accounting principles, or GAAP, for complete financial statements have been condensed or omitted.  We believe the disclosures made are adequate to make the information presented not misleading.  However, the accompanying condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes contained in our Annual Report on Form 10-K for the year ended December 31, 2015, or our Annual Report.  In the opinion of our management, all adjustments, which include only normal recurring adjustments, considered necessary for a fair presentation have been included.  All intercompany transactions and balances with or among our consolidated subsidiaries have been eliminated.  Operating results for interim periods are not necessarily indicative of the results that may be expected for the full year.

The preparation of financial statements in conformity with GAAP requires us to make estimates and assumptions that affect reported amounts. Actual results could differ from those estimates.  Significant estimates in our condensed consolidated financial statements include purchase price allocations, useful lives of fixed assets and impairment of real estate and intangible assets. We have made reclassifications to the prior years’ condensed consolidated financial statements to conform to the current year’s presentation. These reclassifications had no effect on net income or shareholders’ equity. 

Note 2.  Recent Accounting Pronouncements

On January 1, 2016, we adopted the Financial Accounting Standards Board, or FASB, Accounting Standards Update, or ASU, No. 2015-02, Consolidation. Among other things, this update changed how an entity determines the primary beneficiary of a variable interest entity. The implementation of this update did not have an impact in our condensed consolidated financial statements.

On January 1, 2016, we adopted FASB ASU No. 2015-03, Simplifying the Presentation of Debt Issuance Costs, which requires debt issuance costs to be presented in the balance sheet as a direct deduction from the associated debt liability, and ASU No. 2015-15, Presentation and Subsequent Measurement of Debt Issuance Costs Associated with Line-of-Credit Arrangements – Amendments to SEC Paragraphs Pursuant to Staff Announcement at June 18, 2015 EITF Meeting, which addresses the presentation of debt issuance costs related to line of credit arrangements. The implementation of these updates resulted in the reclassification of certain of our capitalized debt issuance costs as an offset to the associated debt liability in our condensed consolidated balance sheets. The classification of capitalized debt issuance costs related to our unsecured revolving credit facility remains unchanged in accordance with ASU No. 2015-15. As of December 31, 2015, debt issuance costs related to our unsecured term loans, senior unsecured notes and secured debt and capital leases of $3,695, $16,530 and $3,664, respectively, were reclassified from assets to an offset to the associated debt liability in our condensed consolidated balance sheets.

On January 1, 2016, we adopted FASB ASU No. 2015-16, Simplifying the Accounting for Measurement-Period Adjustments, which eliminates the requirement for an acquirer in a business combination to account for measurement period adjustments retrospectively. Instead, acquirers must recognize measurement period adjustments during the period in which they determine the amounts, including the effect on earnings of any amounts they would have recorded in previous periods if the accounting had been completed at the acquisition date. The implementation of this update did not have an impact in our condensed consolidated financial statements.

In January 2016, the FASB issued ASU No. 2016-01, Recognition and Measurement of Financial Assets and Financial Liabilities, which changes how entities measure certain equity investments and present changes in the fair value of financial liabilities measured under the fair value option that are attributable to their own credit. This update is effective for interim and annual periods beginning after December 15, 2017, with early adoption permitted subject to certain conditions. Currently, changes in fair value of these investments are recorded through other comprehensive income. Under this ASU, these changes will be recorded through earnings. We are continuing to evaluate this guidance, but we expect the implementation of this guidance will affect how changes in the fair value of available for sale securities we hold are presented in our condensed consolidated financial statements.

In February 2016, the FASB issued ASU No. 2016-02, Leases, which sets out the principles for the recognition, measurement, presentation and disclosure of leases for both parties to a contract (i.e., lessees and lessors). ASU No. 2016-02

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NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

(dollar amounts in thousands, except per share data or as otherwise stated)

requires lessees to apply a dual approach, classifying leases as either finance or operating leases based on the principle of whether or not the lease is effectively a financed purchase of the leased asset by the lessee. This classification will determine whether the lease expense is recognized based on an effective interest method or on a straight line basis over the term of the lease. A lessee is also required to record a right of use asset and a lease liability for all leases with a term of greater than 12 months regardless of their classification. Leases with a term of 12 months or less will be accounted for similar to existing guidance for operating leases today. The new standard requires lessors to account for leases using an approach that is substantially equivalent to existing guidance for sales type leases, direct financing leases and operating leases. ASU No. 2016-02 is effective for reporting periods beginning after December 15, 2018, with early adoption permitted. We are currently assessing the potential impact the adoption of ASU No. 2016-02 will have in our condensed consolidated financial statements.

In March 2016, the FASB issued ASU No. 2016-09, Compensation – Stock Compensation, which identifies areas for simplification involving several aspects of accounting for share based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, an option to recognize gross stock compensation expense with actual forfeitures recognized as they occur, as well as certain classifications on the statement of cash flows. ASU No. 2016-09 is effective for reporting periods beginning after December 15, 2016.  We are currently assessing the potential impact that the adoption of ASU No. 2016-09 will have in our condensed consolidated financial statements.

In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, which requires that entities use a new forward looking “expected loss” model that generally will result in the earlier recognition of allowance for credit losses. The measurement of expected credit losses is based upon historical experience, current conditions, and reasonable and supportable forecasts that affect the collectability of the reported amount. ASU No. 2016-13 is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. We are currently assessing the potential impact that adoption of ASU No. 2016-13 will have in our condensed consolidated financial statements.

In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments, which clarifies how companies present and classify certain cash receipts and cash payments in the statement of cash flows. ASU No. 2016-15 is effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. We are currently assessing the potential impact that adoption of ASU No. 2016-15 will have in our condensed consolidated financial statements.

Note 3.  Real Estate Properties

At September 30, 2016, we owned 431 properties (457 buildings) located in 42 states and Washington, D.C. We have accounted for, or expect to account for, the following acquisitions as business combinations unless otherwise noted.

Acquisitions:

The allocation of the purchase prices of the acquisitions shown below are based upon preliminary estimates of the fair value of assets acquired and liabilities assumed.  The final amounts allocated to assets acquired and liabilities assumed may differ from the preliminary allocations presented in these condensed consolidated financial statements.

Triple Net Leased Senior Living Communities:

In June 2016, we acquired seven senior living communities located in four states with 545 living units from Five Star Quality Care, Inc., or, together with its subsidiaries, Five Star, for approximately $112,350, excluding closing costs, and simultaneously entered into a new long term master lease with Five Star for those communities.We funded this acquisition using cash on hand and borrowings under our revolving credit facility. See Note 10 for further information regarding this sale and leaseback transaction with Five Star.  We accounted for this acquisition as an asset acquisition, and the preliminary allocation of the purchase price is as follows:

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NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

(dollar amounts in thousands, except per share data or as otherwise stated)

Cash Paid

Number

plus

Premium

of

Units /

Assumed

Buildings and

Assumed

on Assumed

Date

Location

Properties

Beds

Debt(1)

Land

Improvements

FF&E

Debt

Debt

Jun-16

4 states

7

545

$

112,493

$

11,085

$

94,940

$

6,468

$

—

$

—

(1) This amount includes the cash we paid as well as various closing settlement adjustments and closing costs. 

In September 2016, we entered into an agreement to acquire two senior living communities with a combined 126 living units located in Illinois for approximately $18,600, excluding closing costs. We expect to acquire these communities in the fourth quarter of 2016. If these communities are acquired, we expect to lease these communities to Five Star under one of our existing master leases with Five Star. These acquisitions are subject to various conditions; accordingly, we cannot be sure that we will complete these acquisitions and that we will lease them to Five Star, that the acquisitions and leasing arrangements will not be delayed or that the terms will not change. See Note 10 for further information regarding our leasing arrangements with Five Star.

Managed Senior Living Communities:

In May 2016, we acquired one senior living community located in Georgia with 38 living units for a purchase price of approximately $8,400, excluding closing costs. We acquired this community using a taxable REIT subsidiary, or TRS, structure and we have entered into a management agreement with Five Star to manage this community. We funded this acquisition using cash on hand and borrowings under our revolving credit facility. See Note 10 for further information regarding our management arrangements with Five Star. The preliminary allocation of the purchase price for this acquisition is as follows:

Cash Paid

Number

plus

Acquired

Premium

of

Units /

Assumed

Buildings and

Real Estate

Assumed

on Assumed

Date

Location

Properties

Beds

Debt(1)

Land

Improvements

FF&E

Leases

Debt

Debt

May-16

Georgia

1

38

$

8,400

$

327

$

6,195

$

478

$

1,400

$

—

$

—

(1) This amount includes the cash we paid as well as various closing settlement adjustments and excludes closing costs. 

MOBs:

In February 2016, we acquired one property (three buildings) leased to medical providers, medical related businesses, clinics and biotech laboratory tenants, or MOBs, located in Minnesota with approximately 128,000 square feet for a purchase price of approximately $22,700, excluding closing costs. In May 2016, we acquired one MOB (one building) located in Florida with approximately 166,000 square feet for a purchase price of approximately $45,000, excluding closing costs. We accounted for the acquisition of the MOB located in Florida as an asset acquisition. We funded these acquisitions using cash on hand and borrowings under our revolving credit facility. The preliminary allocations of the purchase prices for these acquisitions are as follows:

					Cash Paid								Acquired
		Number	Number		plus						Acquired		Real Estate					Premium
		of	of	Square	Assumed				Buildings and		Real Estate		Lease			Assumed		on Assumed
Date	Location	Properties	Buildings	Feet (000’s)	Debt (1)		Land		Improvements		Leases(2)		Obligations(2)			Debt		Debt
Feb-16	Minnesota	1	3	128	$	22,700	$	4,074	$	15,223	$	5,163	$	(1,760	)	$	—	$	—
May-16	Florida	1	1	166	45,230		2,792		42,438		—		—			—		—
		2	4	294	$	67,930	$	6,866	$	57,661	$	5,163	$	(1,760	)	$	—	$	—

(1) With respect to the property located in Minnesota, this amount includes the cash we paid as well as various closing settlement adjustments, and excludes closing costs. With respect to the property located in Florida that is being accounted for as an asset acquisition, this amount includes the cash we paid as well as various closing settlement adjustments and closing costs.

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NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

(dollar amounts in thousands, except per share data or as otherwise stated)

(2) The weighted average amortization periods for acquired lease intangible assets and assumed real estate lease obligations at the time of these acquisitions was 6.4 years and 7.3 years, respectively.

In October 2016, we acquired one MOB (one building) located in Ohio with approximately 96,000 square feet for approximately $18,500, excluding closing costs.

Impairment:

We periodically evaluate our assets for impairments. Impairment indicators may include declining tenant or resident occupancy, weak or declining profitability from the property, decreasing tenant cash flows or liquidity, our decision to dispose of an asset before the end of its estimated useful life, and legislative, market or industry changes that could permanently reduce the value of an asset. If indicators of impairment are present, we evaluate the carrying value of the affected asset by comparing it to the expected future undiscounted net cash flows to be generated from that asset. If the sum of these expected future net cash flows is less than the carrying value, we reduce the net carrying value of the asset to its estimated fair value. During the nine months ended September 30, 2016, we recorded the following impairment charges:

• $4,391 in the first quarter of 2016 to write off acquired lease intangible assets associated with lease defaults at two of our triple net leased senior living communities leased to two third party private operators.  In April 2016, we reached an agreement with one of these tenants and its guarantor to settle past due amounts, terminate the lease and transfer operations. As part of this agreement, we received an amount of $2,365 and entered into a management agreement with Five Star to operate this community for our account under a TRS structure. In July 2016, we terminated the other lease and entered into a management agreement with Five Star to operate the community for our account under a TRS structure. See Note 10 for further information regarding our management arrangements with Five Star.

• $2,999 in the first quarter of 2016 to reduce the carrying values of one MOB (one building) and one land parcel to their estimated sales prices less costs to sell. In March 2016, we sold the land parcel as described further below at “Dispositions”.

• $4,961 in the second quarter of 2016 to reduce the carrying values of five MOBs (five buildings) to their estimated sales prices less costs to sell. In July 2016, we sold four of these MOBs as described further below at “Dispositions”. In the third quarter of 2016, we recorded a reversal of impairment charges previously recorded of $7 to adjust the carrying value of these MOBs to their sales prices less costs to sell.

• $2,394 and $2,191 in the third quarter of 2016 to reduce the carrying value of one managed senior living community and one triple net leased skilled nursing facility, or SNF, respectively, to their estimated sales prices less costs to sell. In September 2016, we sold the triple net leased SNF as described further below at "Dispositions".

We have one MOB and one former memory care building at a managed senior living community classified as held for sale as of September 30, 2016.

Dispositions:

In March 2016, we sold a land parcel that was previously classified as held for sale for approximately $700, excluding closing costs. We did not recognize a gain or loss on sale from this sale.

In June 2016, we sold one triple net leased SNF that was previously classified as held for sale for approximately $9,100, excluding closing costs. We recognized a gain on sale of approximately $4,061 from this sale.

In July 2016, we sold four MOBs (four buildings) that were classified as held for sale at June 30, 2016 for approximately $20,150, excluding closing costs. In the third quarter of 2016, we recorded a reversal of impairment charges previously recorded of $7 to adjust the carrying values of these MOBs to their sales prices less costs to sell, and we did not recognize a gain or loss on sale from this sale.

In September 2016, we sold one SNF that was previously leased to Five Star for approximately $248, excluding closing costs. We recorded an impairment charge of approximately $2,191 to reduce the carrying value of this SNF to its sale price less cost to sell, and we did not recognize a gain or loss on this sale. As a result of this sale, Five Star's annual rent payable to us

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NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

(dollar amounts in thousands, except per share data or as otherwise stated)

decreased by $25 in accordance with the terms of the applicable lease. See Note 10 for further information regarding our leasing arrangements with Five Star.

Results of operations for properties sold or held for sale are included in discontinued operations in our condensed consolidated statements of comprehensive income when the criteria for discontinued operations in Accounting Standards Codification 2015-20, Discontinued Operations, are met. The senior living communities and MOBs which we are or were offering for sale during the periods presented did not meet the criteria for discontinued operations and are included in continuing operations.

Note 4.  Investments in Available for Sale Securities

At September 30, 2016, we owned 4,235,000 common shares of Five Star. We classify these shares as available for sale securities and carry them at fair market value in other assets in our condensed consolidated balance sheets, with unrealized gains and losses reported as a component of shareholders’ equity. Our historical cost basis for these shares is $14,230. At September 30, 2016, our investment in Five Star had a fair value of $8,089, resulting in a cumulative unrealized loss of $6,141 based on Five Star’s quoted share price at September 30, 2016 ($1.91 per share).

At September 30, 2016, we owned 2,637,408 shares of class A common stock of The RMR Group Inc., or RMR Inc. We classify these shares of RMR Inc. as available for sale securities and carry them at fair value in other assets in our condensed consolidated balance sheets, with unrealized gains and losses reported as a component of shareholders’ equity. Our historical cost basis for these shares is $69,826. At September 30, 2016, our investment in RMR Inc. had a fair value of $100,063, resulting in a cumulative unrealized gain of $30,237 based on RMR Inc.’s quoted share price at September 30, 2016 ($37.94 per share).

See Notes 7 and 10 below for further information regarding our investments in available for sale securities.

Note 5.  Indebtedness

Our principal debt obligations at September 30, 2016 were: (1) outstanding borrowings under our $1,000,000 unsecured revolving credit facility; (2) six public issuances of senior unsecured notes, including: (a) $400,000 principal amount at an annual interest rate of 3.25% due 2019, (b) $200,000 principal amount at an annual interest rate of 6.75% due 2020, (c) $300,000 principal amount at an annual interest rate of 6.75% due 2021, (d) $250,000 principal amount at an annual interest rate of 4.75% due 2024, (e) $350,000 principal amount at an annual interest rate of 5.625% due 2042 and (f) $250,000 principal amount at an annual interest rate of 6.25% due 2046; (3) our $350,000 principal amount term loan due 2020; (4) our $200,000 principal amount term loan due 2022; and (5) $1,160,847 aggregate principal amount of mortgages (excluding premiums, discounts and net debt issuance costs) secured by 52 of our properties (54 buildings) with maturity dates between 2017 and 2043.  The 52 mortgaged properties (54 buildings) had a carrying value (before accumulated depreciation) of $1,693,723 at September 30, 2016.  We also had two properties subject to capital leases with lease obligations totaling $11,643 at September 30, 2016; these two properties had a carrying value (before accumulated depreciation) of $36,061 at September 30, 2016, and the capital leases expire in 2026.

In February 2016, we issued $250,000 of 6.25% senior unsecured notes due 2046. We used the net proceeds of this offering to repay in part the then outstanding amount under our revolving credit facility and for general business purposes.

In July 2016, we entered into loan agreements and obtained an aggregate $620,000 secured debt financing that matures in August 2026. These loans are secured by one MOB (two buildings) located in Massachusetts and require interest at a weighted average fixed annual interest rate of 3.53%. We used the net proceeds from these loans to repay, in part, the then outstanding amount under our revolving credit facility and for general business purposes. The loan agreements contain customary covenants and provide for acceleration of payment of all amounts due thereunder upon the occurrence and continuation of certain events of default.

We have a $1,000,000 revolving credit facility that is available for general business purposes, including acquisitions. The maturity date of our revolving credit facility is January 15, 2018 and, subject to our payment of an extension fee and meeting other conditions, we have an option to extend the stated maturity date by an additional year to January 15, 2019. Our revolving

8

SENIOR HOUSING PROPERTIES TRUST

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

(dollar amounts in thousands, except per share data or as otherwise stated)

credit facility provides that we can borrow, repay and re-borrow funds available under our revolving credit facility until maturity, and no principal repayment is due until maturity.  Our revolving credit facility requires annual interest to be paid on borrowings at LIBOR plus a premium, which was 130 basis points as of September 30, 2016, plus a facility fee of 30 basis points per annum on the total amount of lending commitments.  Both the interest rate premium and the facility fee are subject to adjustment based upon changes to our credit ratings.  As of September 30, 2016, the annual interest rate payable on borrowings under our revolving credit facility was 1.8%. The weighted average annual interest rates for borrowings under our revolving credit facility were 1.8% and 1.5% for the three months ended September 30, 2016 and 2015, respectively, and 1.7% and 1.5% for the nine months ended September 30, 2016 and 2015, respectively. As of September 30, 2016, we had $215,000 outstanding and $785,000 available for borrowing, and as of November 3, 2016, we had $265,000 outstanding and $735,000 available for borrowing under our revolving credit facility. We incurred interest expense and other associated costs related to our revolving credit facility of $2,024 and $2,884 for the three months ended September 30, 2016 and 2015, respectively. We incurred interest expense and other associated costs related to our revolving credit facility of $9,159 and $5,886 for the nine months ended September 30, 2016 and 2015, respectively. Our revolving credit facility includes an accordion feature pursuant to which maximum borrowings under the facility may be increased to up to $1,500,000 in certain circumstances.

We have a $200,000 term loan, which we borrowed in 2015. This term loan matures in September 2022 and is prepayable without penalty beginning September 29, 2017. This term loan requires annual interest to be paid at LIBOR plus a premium of 180 basis points that is subject to adjustment based upon changes to our credit ratings. At September 30, 2016, the annual interest rate payable for amounts outstanding under this term loan was 2.3%. The weighted average annual interest rate for amounts outstanding under this term loan was 2.3% for both the three and nine months ended September 30, 2016, and 2.3% for the period from September 28, 2015 (the day we entered into the term loan agreement) to September 30, 2015. We incurred interest expense and other associated costs related to this term loan of $1,173 and $3,433 for the three and nine months ended September 30, 2016, respectively, and $33 for both the three and nine months ended September 30, 2015. This term loan includes an accordion feature under which maximum borrowings may be increased to up to $400,000 in certain circumstances.

We also have a $350,000 term loan, which we borrowed in 2014. This term loan matures in January 2020 and is prepayable without penalty at any time.  This term loan requires annual interest to be paid at LIBOR plus a premium of 140 basis points that is subject to adjustment based upon changes to our credit ratings. At September 30, 2016, the annual interest rate payable on amounts outstanding under this term loan was 1.9%.  The weighted average annual interest rate for amounts outstanding under this term loan was 1.9% and 1.6% for the three months ended September 30, 2016 and 2015, respectively, and 1.9% and 1.6% for the nine months ended September 30, 2016 and 2015, respectively. We incurred interest expense and other associated costs related to this term loan of $1,707 and $1,423 for three months ended September 30, 2016 and 2015, respectively. We incurred interest expense and other associated costs related to this term loan of $4,956 and $4,246 for nine months ended September 30, 2016 and 2015, respectively. This term loan includes an accordion feature under which maximum borrowings may be increased to up to $700,000 in certain circumstances.

Our revolving credit facility and term loan agreements and our senior unsecured notes indentures and their supplements provide for acceleration of payment of all amounts due thereunder upon the occurrence and continuation of certain events of default, such as, in the case of our revolving credit facility and term loan agreements, a change of control of us, as defined, which includes The RMR Group LLC, or RMR LLC, ceasing to act as our business manager and property manager. Our revolving credit facility and term loan agreements and our senior unsecured notes indentures and their supplements also contain a number of covenants, including covenants that restrict our ability to incur debts, and generally require us to maintain certain financial ratios, and our revolving credit facility and term loan agreements restrict our ability to make distributions under certain circumstances. We believe we were in compliance with the terms and conditions of the respective covenants under our revolving credit facility and term loan agreements and our senior unsecured notes indentures and their supplements at September 30, 2016.

In January 2016, we prepaid, at par plus accrued interest, a $6,115 mortgage note secured by one of our properties with a maturity date in April 2016 and an annual interest rate of 5.97%. In April 2016, we prepaid, at par plus accrued interest, an $18,000 mortgage note secured by one of our properties with a maturity date in July 2016 and an annual interest rate of 4.65%. In July 2016, we prepaid, at par plus accrued interest, an $11,871 mortgage note secured by one of our properties with a maturity date in November 2016 and an annual interest rate of 6.25%. In September 2016, we prepaid, at par plus accrued interest, two mortgage notes secured by two properties with an aggregate principal balance of $79,957, maturity dates in November 2016 and a weighted average annual interest rate of 5.92%. In October 2016, we prepaid, at par plus prepayment premiums and accrued interest, mortgage notes secured by eight properties with an aggregate principal balance of $42,542, maturity dates in May 2017 and a weighted average annual interest rate of 6.54%.  Also in October 2016, we gave notice of our

9

SENIOR HOUSING PROPERTIES TRUST

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

(dollar amounts in thousands, except per share data or as otherwise stated)

intention to prepay, at par plus accrued interest, one mortgage note secured by one of our properties with an outstanding principal balance of approximately $5,428, a maturity date in March 2017 and an annual interest rate of 5.86%; we expect to make this prepayment in December 2016.

Note 6.  Shareholders’ Equity

Distributions:

On February 23, 2016, we paid a regular quarterly distribution to common shareholders of $0.39 per share, or approximately $92,614, that was declared on January 11, 2016 and was payable to shareholders of record on January 22, 2016. On May 19, 2016, we paid a regular quarterly distribution to common shareholders of $0.39 per share, or approximately $92,614, that was declared on April 13, 2016 and was payable to shareholders of record on April 25, 2016. On August 18, 2016, we paid a regular quarterly distribution to common shareholders of $0.39 per share, or approximately $92,619, that was declared on July 12, 2016 and was payable to shareholders of record on July 22, 2016. On October 11, 2016, we declared a regular quarterly distribution payable to common shareholders of record on October 21, 2016 of $0.39 per share, or approximately $92,643. We expect to pay this distribution on or about November 17, 2016.

Share Issuances and Purchases:

On May 18, 2016, we granted 2,500 of our common shares, valued at $18.26 per share, the closing price of our common shares on the New York Stock Exchange (where our common shares were then listed) on that day, to each of our five Trustees as part of their annual compensation.

On September 15, 2016, pursuant to our equity compensation plan, we granted an aggregate of 79,650 of our common shares to our officers and certain other employees of our manager, RMR LLC, valued at $21.64 per share, the closing price of our common shares on The NASDAQ Stock Market LLC, or the Nasdaq, on that day.

On September 26, 2016, we purchased an aggregate of 17,667 of our common shares valued at $23.53 per common share, the closing price of our common shares on the Nasdaq on that day, from certain employees of RMR LLC in satisfaction of tax withholding and payment obligations in connection with the vesting of awards of our common shares.

Note 7.  Fair Value of Assets and Liabilities

The table below presents certain of our assets measured at fair value at September 30, 2016, categorized by the level of inputs as defined in the fair value hierarchy under GAAP, used in the valuation of each asset: 

							Significant
	Total as of		Quoted Prices in Active		Significant Other		Unobservable
	September 30,		Markets for Identical		Observable Inputs		Inputs
Description	2016		Assets (Level 1)		(Level 2)		(Level 3)
Recurring Fair Value Measurements
Assets:
Investments in available for sale securities (1)	$	108,152	$	108,152	$	—	$	—
Non-Recurring Fair Value Measurements
Assets:
Assets held for sale (2)	$	3,627	$	—	$	—	$	3,627

(1) Our investments in available for sale securities include our 4,235,000 common shares of Five Star and our 2,637,408 shares of RMR Inc. class A common stock. The fair values of these shares are based upon quoted prices at September 30, 2016 in active markets (Level 1 inputs). Our historical cost basis for our Five Star and RMR Inc. shares is $14,230 and $69,826, respectively, as of September 30, 2016. The unrealized loss of $6,141 for our Five Star shares and the unrealized gain of $30,237 for our RMR Inc. shares as of September 30, 2016 are included in cumulative other comprehensive income (loss) in our condensed consolidated balance sheets. We evaluated the decline in the fair value of the Five Star shares and determined that based on the severity and duration of the decline, and our ability and intent to hold these investments for a reasonable period of time sufficient for a recovery of fair value, we do not consider these investments to be other-than-temporarily impaired at September 30, 2016.

10

SENIOR HOUSING PROPERTIES TRUST

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

(dollar amounts in thousands, except per share data or as otherwise stated)

(2) Assets held for sale consist of two properties held for sale as of September 30, 2016. These properties are recorded at their estimated fair values less costs to sell. We used offers from third parties to purchase these properties and our knowledge of local real estate markets to determine their fair values as of September 30, 2016. See Note 3 for further information regarding these properties.

In addition to the assets described in the table above, our financial instruments at September 30, 2016 and December 31, 2015 included cash and cash equivalents, restricted cash, other assets, our revolving credit facility, term loans, senior unsecured notes, secured debt and capital leases and other unsecured obligations and liabilities. The fair values of these financial instruments approximated their carrying values in our condensed consolidated financial statements as of such dates, except as follows: 

	As of September 30, 2016				As of December 31, 2015
Description	Carrying Amount(1)		Estimated Fair Value		Carrying Amount(1)		Estimated Fair Value
Senior unsecured notes	$	1,722,032	$	1,830,935	$	1,478,536	$	1,548,613
Secured debt and capital leases(2)	1,168,827		1,195,240		679,295		724,615
	$	2,890,859	$	3,026,175	$	2,157,831	$	2,273,228

(1) Includes unamortized debt issuance costs, premiums and discounts.

(2) We assumed certain of these secured debts in connection with our acquisitions of certain properties. We recorded the assumed mortgage debts at estimated fair value on the date of acquisition and we are amortizing the fair value adjustments, if any, to interest expense over the respective terms of the mortgage debts to reduce interest expense to the estimated market interest rates as of the date of acquisition.

We estimate the fair values of our senior unsecured notes using an average of the bid and ask price on or about September 30, 2016 of our six outstanding issuances of senior unsecured notes (Level 2 inputs as defined in the fair value hierarchy under GAAP).  We estimate the fair values of our secured debts by using discounted cash flows analyses and currently prevailing market terms as of the measurement date (Level 3 inputs as defined as defined in the fair value hierarchy under GAAP). Because Level 3 inputs are unobservable, our estimated fair value may differ materially from the actual fair value.

Note 8.  Segment Reporting

As of September 30, 2016, we have four operating segments, of which three are separate reporting segments. The first reporting segment includes triple net senior living communities that provide short term and long term residential care and other services for residents. The second reporting segment includes managed senior living communities that provide short term and long term residential care and other services for residents. The third reporting segment includes MOBs. Our fourth segment includes all of our other operations, including certain properties that offer wellness, fitness and spa services to members, which we do not consider to be sufficiently material to constitute a separate reporting segment.

11

SENIOR HOUSING PROPERTIES TRUST

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

(dollar amounts in thousands, except per share data or as otherwise stated)

	For the Three Months Ended September 30, 2016
	Triple Net
	Leased			Managed
	Senior Living			Senior Living						All Other
	Communities			Communities			MOBs			Operations			Consolidated
Revenues:
Rental income	$	66,520		$	—		$	94,404		$	4,579		$	165,503
Residents fees and services	—			98,480			—			—			98,480
Total revenues	66,520			98,480			94,404			4,579			263,983
Expenses:
Property operating expenses	47			74,763			28,537			—			103,347
Depreciation and amortization	19,727			20,747			30,922			948			72,344
General and administrative	—			—			—			12,107			12,107
Acquisition and certain other transaction related costs	—			—			—			824			824
Impairment of assets	2,191			2,394			(7		)	—			4,578
Total expenses	21,965			97,904			59,452			13,879			193,200
Operating income (loss)	44,555			576			34,952			(9,300		)	70,783
Dividend income	—			—			—			659			659
Interest and other income	—			—			—			89			89
Interest expense	(6,228		)	(2,104		)	(5,599		)	(29,507		)	(43,438		)
Loss on early extinguishment of debt	—			(84		)	—			—			(84		)
Income (loss) from continuing operations before income tax expense and equity in earnings of an investee	38,327			(1,612		)	29,353			(38,059		)	28,009
Income tax expense	—			—			—			(119		)	(119		)
Equity in earnings of an investee	—			—			—			13			13
Net income (loss)	$	38,327		$	(1,612	)	$	29,353		$	(38,165	)	27,903
	As of September 30, 2016
	Triple Net
	Leased			Managed
	Senior Living			Senior Living						All Other
	Communities			Communities			MOBs			Operations			Consolidated
Total assets	$	2,281,420		$	1,272,441		$	3,343,492		$	332,745		$	7,230,098

12

SENIOR HOUSING PROPERTIES TRUST

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

(dollar amounts in thousands, except per share data or as otherwise stated)

	For the Three Months Ended September 30, 2015
	Triple Net
	Leased			Managed
	Senior Living			Senior Living						All Other
	Communities			Communities			MOBs			Operations			Consolidated
Revenues:
Rental income	$	64,222		$	—		$	90,072		$	4,569		$	158,863
Residents fees and services	—			96,412			—			—			96,412
Total revenues	64,222			96,412			90,072			4,569			255,275
Expenses:
Property operating expenses	—			71,983			24,944			—			96,927
Depreciation and amortization	19,140			19,248			30,680			948			70,016
General and administrative	—			—			—			10,316			10,316
Acquisition and certain other transaction related costs	—			—			—			742			742
Impairment of assets	(98		)	—			—			—			(98		)
Total expenses	19,042			91,231			55,624			12,006			177,903
Operating income (loss)	45,180			5,181			34,448			(7,437		)	77,372
Interest and other income	—			—			—			57			57
Interest expense	(6,342		)	(2,705		)	(1,707		)	(28,235		)	(38,989		)
Loss on early extinguishment of debt	—			—			—			(21		)	(21		)
Income (loss) from continuing operations before income tax expense and equity in losses of an investee	38,838			2,476			32,741			(35,636		)	38,419
Income tax expense	—			—			—			(146		)	(146		)
Equity in losses of an investee	—			—			—			(24		)	(24		)
Net income (loss)	$	38,838		$	2,476		$	32,741		$	(35,806	)	$	38,249
	As of December 31, 2015
	Triple Net
	Leased			Managed
	Senior Living			Senior Living						All Other
	Communities			Communities			MOBs			Operations			Consolidated
Total assets	$	2,251,212		$	1,260,425		$	3,362,214		$	286,239		$	7,160,090

13

SENIOR HOUSING PROPERTIES TRUST

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

(dollar amounts in thousands, except per share data or as otherwise stated)

	For the Nine Months Ended September 30, 2016
	Triple Net
	Leased			Managed
	Senior Living			Senior Living						All Other
	Communities			Communities			MOBs			Operations			Consolidated
Revenues:
Rental income	$	198,269		$	—		$	278,964		$	13,689		$	490,922
Residents fees and services	—			292,803			—			—			292,803
Total revenues	198,269			292,803			278,964			13,689			783,725
Expenses:
Property operating expenses	833			218,582			79,361			—			298,776
Depreciation and amortization	58,401			60,905			92,788			2,844			214,938
General and administrative	—			—			—			34,931			34,931
Acquisition and certain other transaction related costs	—			—			—			1,443			1,443
Impairment of assets	6,583			2,394			7,953			—			16,930
Total expenses	65,817			281,881			180,102			39,218			567,018
Operating income (loss)	132,452			10,922			98,862			(25,529		)	216,707
Dividend income	—			—			—			1,449			1,449
Interest and other income	—			—			—			330			330
Interest expense	(18,892		)	(7,332		)	(7,398		)	(90,215		)	(123,837		)
Loss on early extinguishment of debt	—			(90		)	—			—			(90		)
Income (loss) from continuing operations before income tax expense and equity in earnings of an investee	113,560			3,500			91,464			(113,965		)	94,559
Income tax expense	—			—			—			(318		)	(318		)
Equity in earnings of an investee	—			—			—			107			107
Income (loss) before gain on sale of properties	113,560			3,500			91,464			(114,176		)	94,348
Gain on sale of properties	4,061			—			—			—			4,061
Net income (loss)	$	117,621		$	3,500		$	91,464		$	(114,176	)	$	98,409
	As of September 30, 2016
	Triple Net
	Leased			Managed
	Senior Living			Senior Living						All Other
	Communities			Communities			MOBs			Operations			Consolidated
Total assets	$	2,281,420		$	1,272,441		$	3,343,492		$	332,745		$	7,230,098

14

SENIOR HOUSING PROPERTIES TRUST

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

(dollar amounts in thousands, except per share data or as otherwise stated)

	For the Nine Months Ended September 30, 2015
	Triple Net
	Leased			Managed
	Senior Living			Senior Living						All Other
	Communities			Communities			MOBs			Operations			Consolidated
Revenues:
Rental income	$	180,820		$	—		$	265,664		$	13,709		$	460,193
Residents fees and services	—			271,061			—			—			271,061
Total revenues	180,820			271,061			265,664			13,709			731,254
Expenses:
Property operating expenses	—			204,178			72,135			—			276,313
Depreciation and amortization	51,322			41,357			90,711			2,844			186,234
General and administrative	—			—			—			32,563			32,563
Acquisition and certain other transaction related costs	—			—			—			6,517			6,517
Impairment of assets	(98		)	—			—			—			(98		)
Total expenses	51,224			245,535			162,846			41,924			501,529
Operating income (loss)	129,596			25,526			102,818			(28,215		)	229,725
Interest and other income	—			—			—			274			274
Interest expense	(18,598		)	(7,285		)	(5,232		)	(81,723		)	(112,838		)
Loss on early extinguishment of debt	(6		)	(33		)	—			(1,430		)	(1,469		)
Income (loss) from continuing operations before income tax expense and equity in earnings of an investee	110,992			18,208			97,586			(111,094		)	115,692
Income tax expense	—			—			—			(385		)	(385		)
Equity in earnings of an investee	—			—			—			70			70
Income (loss) from continuing operations	110,992			18,208			97,586			(111,409		)	115,377
Discontinued operations:
Loss from discontinued operations	—			—			(350		)	—			(350		)
Impairment of assets from discontinued operations	—			—			(602		)	—			(602		)
Net income (loss)	$	110,992		$	18,208		$	96,634		$	(111,409	)	$	114,425
	As of December 31, 2015
	Triple Net
	Leased			Managed
	Senior Living			Senior Living						All Other
	Communities			Communities			MOBs			Operations			Consolidated
Total assets	$	2,251,212		$	1,260,425		$	3,362,214		$	286,239		$	7,160,090

Note 9. Significant Tenant

Five Star is our most significant tenant.  Rental income from Five Star represented 19.1% of our total revenues for the three months ended September 30, 2016, and the properties Five Star leases from us represented 29.7% of our real estate investments, at cost, as of September 30, 2016.  As of September 30, 2016, Five Star also managed 63 senior living communities for our account. See Note 10 for further information relating to our leases and management arrangements with Five Star.

15

SENIOR HOUSING PROPERTIES TRUST

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

(dollar amounts in thousands, except per share data or as otherwise stated)

Note 10. Related Person Transactions

We have relationships and historical and continuing transactions with Five Star, RMR LLC and others related to them, including other companies to which RMR LLC provides management services and which have trustees, directors and officers who are also our Trustees or officers.  For further information about these and other such relationships and certain other related person transactions, please refer to our Annual Report.

Five Star:  Five Star was our 100% owned subsidiary until we distributed its common shares to our shareholders in 2001.  We are currently Five Star’s largest stockholder.  As of September 30, 2016, we owned 4,235,000 of Five Star’s common shares, or approximately 8.6% of Five Star’s outstanding common shares.  Five Star is our largest tenant and a manager of certain of our senior living communities.

Our investment in Five Star common shares, which is included in other assets in our condensed consolidated balance sheets, is recorded at fair value, with the related unrealized gain (loss) included in cumulative other comprehensive income (loss) in our condensed consolidated balance sheets. We recognize the increase or decrease in the fair value of our Five Star common shares each reporting period as unrealized gain or loss on investment in available for sale securities which is a component of other comprehensive income (loss) in our condensed consolidated statements of comprehensive income. For further information, see Notes 4 and 7.

On June 29, 2016, we entered into a transaction agreement, or the Transaction Agreement, and related agreements, or, collectively, the Transaction Documents, with Five Star.  Pursuant to the Transaction Documents, among other things, on June 29, 2016, we and Five Star completed a sale and leaseback transaction with respect to certain senior living communities owned by Five Star and amended the pooling arrangements related to Five Star’s management of certain senior living communities we own.  Significant terms of the Transaction Documents are summarized below.

• Pursuant to the Transaction Agreement, we purchased seven senior living communities from Five Star for an aggregate purchase price of $112,350, and we and Five Star simultaneously entered into a new long term lease agreement, or the New Lease, whereby we have leased those seven senior living communities to Five Star.

• Pursuant to the New Lease, Five Star is required to pay initial annual rent of $8,426, plus, beginning in 2018, percentage rent equal to 4% of the amount by which gross revenues, as defined in the New Lease, of each community exceeds gross revenues of such community in 2017.  The initial term of the New Lease expires on December 31, 2028 and Five Star has options to extend the term of the New Lease for two consecutive 15-year terms.  Pursuant to the New Lease, Five Star may request that we purchase certain improvements to the communities in return for rent increases in accordance with the formula specified in the New Lease; however, we are not obligated to purchase such improvements and Five Star is not required to sell them to us.  Pursuant to the Transaction Agreement, we have the right, in connection with a financing or other capital raising transaction, to reassign one or more of the communities covered by the New Lease to another existing or new long term lease agreement between us and Five Star.  Other terms of the New Lease are substantially similar to those of our other four preexisting long term leases with Five Star, such terms being described in our Annual Report, which descriptions are incorporated herein by reference.

• Pursuant to the Transaction Agreement, our three then existing pooling agreements with Five Star that combined for certain purposes certain of our management agreements with Five Star for senior living communities that include assisted living units, or AL Management Agreements, were terminated and we entered into 10 new pooling agreements with Five Star, or the New Pooling Agreements.  Nine of the New Pooling Agreements combine six AL Management Agreements and one of the New Pooling Agreements currently combines five AL Management Agreements.  Each New Pooling Agreement combines various calculations of revenues and expenses from the operations of the applicable communities covered by each New Pooling Agreement.

• Pursuant to the New Pooling Agreements, the AL Management Agreements covered by each New Pooling Agreement generally provide Five Star with a management fee equal to either 3% or 5% of the gross revenues realized at such communities plus reimbursement for its direct costs and expenses related to such communities, as well as an annual incentive fee equal to either 35% or 20% of the annual net operating income of such communities remaining after we realize an annual minimum return equal to either 8% or 7% of our invested capital, or, in the case of nine communities, a specified amount plus 7% of our invested capital since December 31, 2015.  The calculations of Five Star’s fees and of our annual minimum return related to any AL Management Agreement that became effective before May 2015 and had been pooled under one of the previously existing pooling agreements are generally the same as they were under

16

SENIOR HOUSING PROPERTIES TRUST

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

(dollar amounts in thousands, except per share data or as otherwise stated)

the previously existing pooling agreements.  However, with respect to certain communities, our annual minimum return was reduced to 7%, and also, with respect to the nine communities referenced above, our annual minimum return was reset as of 2016 to specified amounts.  With regard to AL Management Agreements that became effective from and after May 2015, the management fee was changed to 5%, rather than the prior 3%, of the gross revenues realized at the applicable community, and the incentive fee was changed to 20%, rather than the prior 35%, of the annual net operating income of the applicable community remaining, in all cases after we realize our requisite annual minimum return.  Pursuant to the New Pooling Agreements, we will pay Five Star a fee for its management of capital expenditure projects equal to 3% of amounts funded by us.

• The terms of the AL Management Agreements covered by the New Pooling Agreements expire between 2030 and 2039 and are subject to automatic renewals, unless earlier terminated or timely notices of nonrenewal are delivered.  The right that we and Five Star each had under the AL Management Agreements that became effective from and after May 1, 2015 to terminate each such AL Management Agreement as of December 31, 2016 was eliminated pursuant to the applicable New Pooling Agreement.  Five Star has a limited right under the AL Management Agreements to require underperforming communities to be sold, and we have the right to terminate all the AL Management Agreements subject to a New Pooling Agreement if we do not receive our annual minimum return under such New Pooling Agreement in each of three consecutive years, commencing with calendar year 2016, subject to certain Five Star cure rights.

• The New Pooling Agreements collectively combine all AL Management Agreements except for the management agreement related to one assisted living community located in New York and the management agreement related to one assisted living community located in California, and, other than as described below, the terms of those management agreements were not amended as part of the transactions implemented by the Transaction Documents.  The terms of our existing pooling agreement with Five Star that combines our management agreements with Five Star for senior living communities that include only independent living units, and the terms of those management agreements, also were not amended as part of the transactions implemented by the Transaction Documents.

• Pursuant to the Transaction Agreement, we and Five Star amended the management agreement for one California community so that the calculation of our annual minimum return under that agreement is fixed at $3,610 plus 7% of any amount funded by us for capital expenditures at this community since December 31, 2015.

Because of the continuing relationships between us and Five Star, the terms of the Transaction Documents were negotiated and approved by special committees of our Board of Trustees and Five Star’s board of directors composed solely of our Independent Trustees and Five Star’s independent directors who are not also Trustees or directors of the other party, which committees were represented by separate counsel.

In September 2016, we acquired for $130 an additional living unit at a senior living community located in Florida that we lease to Five Star. This living unit was added to the applicable lease and Five Star’s annual rent payable to us increased by $10 in accordance with the terms of that lease.

In September 2016, we and Five Star sold a vacant SNF located in Wisconsin that we leased to Five Star for $248, and as a result of this sale, Five Star’s annual rent payable to us decreased by $25 in accordance with the terms of the applicable lease.

As of September 30, 2016 and 2015, we leased 183 and 178 senior living communities to Five Star, respectively.  We recognized total rental income from Five Star of $50,417 and $47,828 for the three months ended September 30, 2016 and 2015, respectively, and $146,758 and $143,271 for the nine months ended September 30, 2016 and 2015, respectively.  These amounts exclude estimated percentage rent payments we received from Five Star of $1,367 and $1,371 for the three months ended September 30, 2016 and 2015, respectively, and $4,228 and $4,194 for the nine months ended September 30, 2016 and 2015, respectively.  We determine actual percentage rent due under our Five Star leases annually and recognize any resulting amount as rental income at year end when all contingencies are met.  As of September 30, 2016 and December 31, 2015, we had rents receivable from Five Star of $16,831 and $17,466, respectively.  Those amounts are included in other assets in our condensed consolidated balance sheets.

Pursuant to the terms of our leases with Five Star, we funded $3,470 and $7,523 for the three months ended September 30, 2016 and 2015, respectively, and $15,306 and $16,425 for the nine months ended September 30, 2016 and 2015, respectively, of improvements to communities leased to Five Star. As a result, the annual rent payable to us by Five Star increased by approximately $279 and $604 for the three months ended September 30, 2016 and 2015, respectively, and $1,228 and $1,322, for the nine months ended September 30, 2016 and 2015, respectively.

17

SENIOR HOUSING PROPERTIES TRUST

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

(dollar amounts in thousands, except per share data or as otherwise stated)

Also in September 2016, we agreed to acquire two senior living communities with a combined 126 living units located in Illinois for approximately $18,600, excluding closing costs. If these acquisitions are completed, we expect to lease these communities to Five Star under one of our existing master leases with Five Star. These acquisitions are subject to various conditions; accordingly, we cannot be sure that we will complete these acquisitions and that we will lease them to Five Star, that the acquisitions and lease arrangements will not be delayed or that the terms will not change.

During the nine months ended September 30, 2016, Five Star began managing for our account three senior living communities we own with an aggregate 288 living units.  We acquired one of those communities in May 2016 for a purchase price of approximately $8,400, excluding closing costs, and each of the other two communities had previously been leased to an unrelated third party that defaulted on its lease. The terms under which Five Star is managing these senior living communities are described above.

As of September 30, 2016 and 2015, Five Star managed 63 and 60 senior living communities for our account, respectively.  We incurred management fees payable to Five Star of $3,070 and $2,717 for the three months ended September 30, 2016 and 2015, respectively, and $8,689 and $7,939 for the nine months ended September 30, 2016 and 2015, respectively.  These amounts are included in property operating expenses in our condensed consolidated statements of comprehensive income. In addition, we incurred fees for Five Star's management of capital expenditure projects at our Five Star managed communities of $266 for the three and nine months ended September 30, 2016. These amounts have been capitalized in our condensed consolidated financial statements.

In October 2016, we entered into an agreement to sell a former memory care building at an assisted living community in Florida that Five Star has historically managed for our account for $2,100. If this sale is completed, we expect that our management agreement with Five Star for this community will be terminated. This sale is subject to various conditions; accordingly, we cannot be sure that we will complete the sale or that the management agreement will be terminated, that the sale and termination will not be delayed or that the terms will not change.

In October 2016, Five Star agreed to manage four senior living communities we own located in Georgia with approximately 350 living units. Five Star will manage these senior living communities pursuant to management agreements that will be added to an existing or new pooling agreement with terms consistent with the AL Management Agreements that became effective from and after May 2015 as described above. Five Star's assumption of the management of these communities is subject to conditions and we cannot be sure that those conditions will be satisfied.

D&R Yonkers LLC:  In order to accommodate certain requirements of New York licensing laws, one of our TRSs subleases a part of a senior living community we own that is managed by Five Star to D&R Yonkers LLC.  D&R Yonkers LLC is owned by our President and Chief Operating Officer and Five Star’s chief financial officer and treasurer.  Our transactions and balances with D&R Yonkers LLC are eliminated upon consolidation for accounting purposes and are not separately stated and do not appear in our condensed consolidated financial statements.

RMR LLC:  Pursuant to our business management agreement with RMR LLC, we recognized net business management fees of $9,609 and $8,682 for the three months ended September 30, 2016 and 2015, respectively, and $27,199 and $26,644 for the nine months ended September 30, 2016 and 2015, respectively.  The net business management fees we recognized for the 2016 and 2015 periods are included in general and administrative expenses in our condensed consolidated statements of comprehensive income.

In accordance with the terms of our business management agreement, we issued 68,983 of our common shares to RMR LLC for the period from January 1, 2015 through May 31, 2015 as payment for a part of the business management fee we recognized for that period.  Beginning June 1, 2015, all management fees under our business management agreement are paid in cash.

Pursuant to our property management agreement with RMR LLC, we recognized aggregate net property management and construction supervision fees of $2,961 and $2,533 for the three months ended September 30, 2016 and 2015, respectively, and $8,193 and $7,554 for the nine months ended September 30, 2016 and 2015, respectively.  These amounts are included in property operating expenses or have been capitalized, as appropriate, in our condensed consolidated financial statements.

18

SENIOR HOUSING PROPERTIES TRUST

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

(dollar amounts in thousands, except per share data or as otherwise stated)

We are generally responsible for all of our operating expenses, including certain expenses incurred by RMR LLC on our behalf.  Our property level operating expenses are generally incorporated into rents charged to our tenants, including certain payroll and related costs incurred by RMR LLC.  We reimbursed RMR LLC $2,482 and $1,954 for property management related expenses for the three months ended September 30, 2016 and 2015, respectively, and $6,781 and $5,189 for the nine months ended September 30, 2016 and 2015, respectively.  These amounts are included in property operating expenses in our condensed consolidated statements of comprehensive income.

We have historically awarded share grants to certain RMR LLC employees under our equity compensation plans.  In September 2016 and 2015, we awarded annual share grants of 79,650 and 84,000 of our common shares, respectively, to our officers and to other employees of RMR LLC. In September 2016, we purchased 17,667 of our common shares, at the closing price of our common shares on the Nasdaq on the date of purchase, from certain employees of RMR LLC in satisfaction of tax withholding and payment obligations in connection with the vesting of awards of our common shares. In addition, under our business management agreement we reimburse RMR LLC for our allocable costs for internal audit services.  The amounts recognized as expense for share grants to RMR LLC employees and internal audit costs were $901 and $302 for the three months ended September 30, 2016 and 2015, respectively, and $2,075 and $1,337 for the nine months ended September 30, 2016 and 2015, respectively.  These amounts are included in general and administrative expenses in our condensed consolidated statements of comprehensive income.

We lease office space to RMR LLC in certain of our properties for its property management offices.  Pursuant to our lease agreements with RMR LLC, we recognized rental income from RMR LLC for leased office space of $82 and $198 for the three and nine months ended September 30, 2016, respectively, and $51 and $153 for the three and nine months ended September 30, 2015, respectively.

RMR Inc.: In connection with our June 2015 acquisition of shares of class A common stock of RMR Inc., we recorded a liability for the amount by which the estimated fair value of these shares exceeded the price we paid for these shares.  This liability is included in accounts payable and other liabilities in our condensed consolidated balance sheets.  A part of this liability is being amortized on a straight line basis through December 31, 2035 as an allocated reduction to our business management and property management fee expense.  We amortized $943 and $959 of this liability for the three months ended September 30, 2016 and 2015, respectively, and $2,829 and $1,202 of this liability for the nine months ended September 30, 2016 and 2015, respectively.  These amounts are included in the net business management and property management fee amounts for such periods.  As of September 30, 2016, the remaining unamortized amount of this liability was $72,876.

As of September 30, 2016, we owned 2,637,408 shares of class A common stock of RMR Inc.  We receive dividends on our RMR Inc. class A common shares as declared and paid by RMR Inc. to all holders of its class A common shares.  We received a dividend of $789 on our RMR Inc. class A common shares during the three months ended June 30, 2016, which was for the period from December 14, 2015 through March 31, 2016.  We received a dividend of $659 on our RMR Inc. class A common shares during the three months ended September 30, 2016, which was for the period from April 1, 2016 through June 30, 2016. On October 11, 2016, RMR Inc. declared a regular quarterly dividend of $0.25 per class A common share payable to shareholders of record on October 21, 2016.  RMR Inc. has stated that it expects to pay this dividend on or about November17, 2016.

Our investment in RMR Inc. class A common shares is included in other assets in our condensed consolidated balance sheets and is recorded at fair value, with the related unrealized gain (loss) included in cumulative other comprehensive income (loss) in our condensed consolidated balance sheets. We recognize the increase or decrease in the fair value of our RMR Inc. class A common shares each reporting period as unrealized gain or loss on investment in available for sale securities which is a component of other comprehensive income (loss) in our condensed consolidated statements of comprehensive income. For further information, see Notes 4 and 7.

ABP Trust: ABP Trust is the indirect controlling shareholder of RMR LLC and is owned by our Managing Trustees, Barry M. Portnoy and Adam D. Portnoy. On October 2, 2016, in connection with the proposed commencement of a partial tender offer by a subsidiary of ABP Trust, or the Purchaser, of up to 10,000,000 shares of common stock of Five Star at a price of $3.00 per share, or the Offer, we entered into a Consent Agreement with the Purchaser, ABP Trust, Adam D. Portnoy and Barry M. Portnoy, or the Requesting Parties. Pursuant to the Consent Agreement, we consented to Five Star’s granting of certain exceptions to the ownership restrictions set forth in its charter to the Requesting Parties, and waived any default under our leases, management and other agreements with Five Star arising or resulting from the Offer. The Consent Agreement provides certain conditions to the effectiveness of our consent and waiver, including that the Requesting Parties enter into a Consent,

19

SENIOR HOUSING PROPERTIES TRUST

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

(dollar amounts in thousands, except per share data or as otherwise stated)

Standstill, Registration Rights and Lock-Up Agreement with Five Star in a form satisfactory to us, and that all conditions to the effectiveness of that agreement be satisfied. The Requesting Parties entered into that agreement on October 2, 2016. On October 6, 2016, the Purchaser commenced the Offer, and on October 27, 2016, the Purchaser amended the Offer to increase the number of shares of common stock of Five Star that it is offering to purchase from 10,000,000 to 18,000,000. Because of the continuing relationships among us and ABP Trust and its affiliates, the terms of the Consent Agreement were negotiated and approved by a special committee of our Board of Trustees composed solely of our Independent Trustees and which special committee was represented by separate counsel, and also were approved by our Independent Trustees and our Board of Trustees (with Barry M. Portnoy and Adam D. Portnoy abstaining), voting separately. For additional information related to the Consent Agreement, please refer to our Current Report on Form 8-K dated October 2, 2016.

AIC:  We and six other companies to which RMR LLC provides management services each own Affiliates Insurance Company, or AIC, in equal amounts.  We and the other AIC shareholders participate in a combined property insurance program arranged and reinsured in part by AIC. We paid aggregate annual premiums, including taxes and fees, of approximately $3,607 in connection with this insurance program for the policy year ending June 30, 2017, which amount may be adjusted from time to time as we acquire and dispose of properties that are included in this insurance program.

As of September 30, 2016 and December 31, 2015, our investment in AIC had a carrying value of $7,110 and $6,827, respectively.  These amounts are included in other assets in our condensed consolidated balance sheets.  We recognized income (loss) of $13 and $(24) related to our investment in AIC for the three months ended September 30, 2016 and 2015, respectively, and $107 and $70 for the nine months ended September 30, 2016 and 2015, respectively.  Our other comprehensive income includes our proportionate part of unrealized gains (losses) on securities which are owned by AIC of $80 and $(72) for the three months ended September 30, 2016 and 2015, respectively, and $175 and $(91) for the nine months ended September 30, 2016 and 2015, respectively.

Directors’ and Officers’ Liability Insurance: We, RMR Inc., RMR LLC and certain companies to which RMR LLC provides management services participate in a combined directors’ and officers’ liability insurance policy. In September 2016, we participated in a one year extension of this combined directors’ and officers’ insurance policy through September 2018. Our premium for this policy extension was approximately $142.

Note 11.  Income Taxes

We have elected to be taxed as a real estate investment trust, or REIT, under the Internal Revenue Code of 1986, as amended, and as such, are generally not subject to federal and most state income taxation on our operating income provided we distribute our taxable income to our shareholders and meet certain organization and operating requirements. We do, however, lease certain managed senior living communities to our wholly owned TRSs that, unlike most of our subsidiaries, file a separate consolidated federal corporate income tax return and are subject to federal and state income taxes.  Our consolidated income tax provision includes the income tax provision related to the operations of our TRSs and certain state income taxes we incur despite our taxation as a REIT.  During the three months ended September 30, 2016 and 2015, we recognized income tax expense of $119 and $146, respectively. During the nine months ended September 30, 2016 and 2015, we recognized income tax expense of $318 and $385, respectively.

Note 12. Weighted Average Common Shares

The following table provides a reconciliation of the weighted average number of common shares used in the calculation of basic and diluted earnings per share (in thousands): 

	Three Months Ended September 30,		Nine Months Ended September 30,
	2016	2015	2016	2015
Weighted average common shares for basic earnings per share	237,347	237,263	237,329	231,454
Effect of dilutive securities: unvested share awards	49	30	40	32
Weighted average common shares for diluted earnings per share	237,396	237,293	237,369	231,486

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Item 2.  Management’s Discussion and Analysis of Financial Condition and Results of Operations.

The following discussion should be read in conjunction with our condensed consolidated financial statements and notes thereto included in this Quarterly Report on Form 10-Q and with our Annual Report. We are a REIT organized under Maryland law. At September 30, 2016, we owned 431 properties (457 buildings) located in 42 states and Washington, D.C. (including two properties (two buildings) classified as held for sale).  At September 30, 2016, the undepreciated carrying value of our properties was $7.7 billion, excluding properties classified as held for sale. For the three months ended September 30, 2016, 97% of our net operating income, or NOI, came from properties where a majority of the revenues are paid from our residents’ and tenants’ private resources.

PORTFOLIO OVERVIEW

The following tables present an overview of our portfolio (dollars in thousands, except per unit / bed or square foot data):

		Number of						Investment per				% of
	Number of	Units/Beds or		Investment		% of Total		Unit / Bed or		Q3 2016		Q3 2016
(As of September 30, 2016)	Properties	Square Feet		Carrying Value (1)		Investment		Square Foot (2)		NOI (3)		NOI(3)
Facility Type
Independent living (4)	68	16,441		$	2,264,237	29.6	%	$	137,719	$	46,100	28.7	%
Assisted living (4)	195	14,319		1,977,679		25.8	%	$	138,116	39,959		24.9	%
Skilled nursing facilities (4)	39	4,131		182,999		2.4	%	$	44,299	4,213		2.6	%
Subtotal senior living communities	302	34,891		4,424,915		57.8	%	$	126,821	90,272		56.2	%
MOBs (5)	119	11,400,789	sq. ft.	3,062,987		39.9	%	$	269	65,835		41.0	%
Wellness centers	10	812,000	sq. ft.	180,017		2.3	%	$	222	4,579		2.8	%
Total	431			$	7,667,919	100.0	%			$	160,686	100.0	%
Tenant / Operator / Managed Properties
Five Star	183	20,061		$	2,270,664	29.7	%	$	113,188	$	50,336	31.5	%
Sunrise / Marriott (6)	4	1,619		126,326		1.6	%	$	78,027	3,132		1.9	%
Brookdale	18	894		64,766		0.8	%	$	72,445	1,813		1.1	%
11 private senior living companies (combined)	29	3,520		506,246		6.6	%	$	143,820	11,274		6.9	%
Subtotal triple net leased senior living communities	234	26,094		2,968,002		38.7	%	$	113,743	66,555		41.4	%
Managed senior living communities (7)	68	8,797		1,456,913		19.1	%	$	165,615	23,717		14.8	%
Subtotal senior living communities	302	34,891		4,424,915		57.8	%	$	126,821	90,272		56.2	%
MOBs (5)	119	11,400,789	sq. ft.	3,062,987		39.9	%	$	269	65,835		41.0	%
Wellness centers	10	812,000	sq. ft.	180,017		2.3	%	$	222	4,579		2.8	%
Total	431			$	7,667,919	100.0	%			$	160,686	100.0	%

Tenant / Managed Property Operating Statistics⁽⁸⁾ 

	Rent Coverage		Occupancy
	2016	2015	2016		2015
Five Star	1.23x	1.22x	84.2	%	84.9	%
Sunrise / Marriott (6)	1.94x	1.98x	90.3	%	92.2	%
Brookdale	2.71x	2.71x	86.6	%	92.5	%
11 private senior living companies (combined)	1.25x	1.70x	88.4	%	86.1	%
Subtotal triple net leased senior living communities	1.33x	1.36x	85.3	%	85.8	%
Managed senior living communities (7)	NA	NA	87.5	%	88.4	%
Subtotal senior living communities	1.33x	1.36x	85.8	%	86.4	%
MOBs (5)	NA	NA	95.9	%	96.0	%
Wellness centers	2.03x	1.94x	100.0	%	100.0	%
Total	1.37x	1.40x

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(1) Amounts are at cost before depreciation, but after impairment write downs, if any. Amounts exclude gross book value of real estate assets for one MOB (one building) and one senior living community classified as held for sale as of September 30, 2016 totaling approximately $3.6 million, which are included in other assets in our condensed consolidated balance sheets.

(2) Represents investment carrying value divided by the number of living units, beds or square feet at September 30, 2016, as applicable.

(3) NOI is defined and calculated by reportable segment and reconciled to net income below in this Item 2. Excludes NOI from properties that were sold or that was earned from properties prior to the transfer of operations to one of our TRSs during the periods presented.

(4) Senior living communities are categorized by the type of living units or beds which constitute a majority of the living units or beds at the community.

(5) These 119 MOB properties are comprised of 145 buildings.  Our MOB leases include some triple net leases where, in addition to paying fixed rents, the tenants assume the obligation to operate and maintain the properties at their expense, and some net and modified gross leases where we are responsible for the operation and maintenance of the properties, and we charge tenants for some or all of the property operating costs.  A small percentage of our MOB leases are so-called "full-service" leases where we receive fixed rent from our tenants and no reimbursement for our property operating costs.

(6) Marriott International, Inc. guarantees the lessee’s obligations under these leases.

(7) These senior living communities are managed by Five Star and one other third party private operator. The occupancy for the 12 month period ended, or, if shorter, from the date of acquisitions through, September 30, 2016 was 87.3%.

(8) Operating data for MOBs are presented as of September 30, 2016 and 2015 and includes (i) space being fitted out for occupancy pursuant to existing leases and (ii) space which is leased but is not occupied or is being offered for sublease by tenants; operating data for other properties, tenants and managers are presented based upon the operating results provided by our tenants and managers for the 12 months ended June 30, 2016 and 2015, or the most recent prior period for which tenant operating results are made available to us. Rent coverage is calculated as operating cash flows from our tenants’ operations of our properties, before subordinated charges, if any, divided by rents payable to us. We have not independently verified tenant operating data. Excludes data for periods prior to our ownership of certain properties, as well as data for properties sold during the periods presented.

The following tables set forth information regarding our lease expirations as of September 30, 2016 (dollars in thousands):

									Percent of		Cumulative
	Annualized Rental Income(1) (2)								Total		Percentage of
	Triple Net Leased								Annualized		Annualized
	Senior Living				Wellness				Rental Income		Rental Income
Year	Communities		MOBs		Centers		Total		Expiring(2)		Expiring(2)
2016	$	—	$	8,779	$	—	$	8,779	1.3	%	1.3	%
2017	—		26,156		—		26,156		4.0	%	5.3	%
2018	14,769		25,070		—		39,839		6.0	%	11.3	%
2019	590		39,695		—		40,285		6.1	%	17.4	%
2020	—		30,970		—		30,970		4.7	%	22.1	%
2021	1,424		15,423		—		16,847		2.6	%	24.7	%
2022	—		14,991		—		14,991		2.3	%	27.0	%
2023	13,424		10,626		7,546		31,596		4.8	%	31.8	%
2024	68,706		36,487		—		105,193		15.9	%	47.7	%
Thereafter	177,509		157,870		10,550		345,929		52.3	%	100.0	%
Total	$	276,422	$	366,067	$	18,096	$	660,585	100.0	%

Average remaining lease term for triple net leased senior living communities, MOB and wellness center properties (weighted by annualized rental income):  8.8 years ⁽²⁾ 

(1) Annualized rental income is rents pursuant to existing leases as of September 30, 2016, including estimated percentage rents, straight line rent adjustments, estimated recurring expense reimbursements for certain net and modified gross leases and excluding lease value amortization at certain of our MOBs and wellness centers.

(2) Excludes rent received from our managed senior living communities leased to our TRSs.  If the NOI from our TRSs (three months ended September 30, 2016, annualized) were included in the foregoing table, the percent of total annualized rental income expiring in each of the following years would be: 2016 — 1.2%; 2017 — 3.5%; 2018 — 5.3%; 2019 — 5.3%; 2020 — 4.1%; 2021 — 2.2%; 2022 — 2.0%; 2023 — 4.2%; 2024 —  13.9%; and thereafter — 58.3%. In addition, if our leases to our TRSs using the terms of the management agreements for these communities were included in the foregoing table, the average remaining lease term for all properties (weighted by annualized rental income) would be 9.6 years.

22

					Percent of		Cumulative
					Total		Percentage of
	Number of Tenants(1)				Number of		Number of
	Senior Living		Wellness		Tenancies		Tenancies
Year	Communities	MOBs	Centers	Total	Expiring(1)		Expiring(1)
2016	—	56	—	56	8.4	%	8.4	%
2017	—	100	—	100	15.2	%	23.6	%
2018	1	96	—	97	14.8	%	38.4	%
2019	1	88	—	89	13.5	%	51.9	%
2020	—	73	—	73	11.1	%	63.0	%
2021	1	58	—	59	9.0	%	72.0	%
2022	—	42	—	42	6.4	%	78.4	%
2023	1	22	1	24	3.7	%	82.1	%
2024	3	25	—	28	4.3	%	86.4	%
Thereafter	11	77	1	89	13.6	%	100.0	%
Total	18	637	2	657	100.0	%

(1) Excludes our managed senior living communities leased to our TRSs.

	Number of Living Units / Beds or Square Feet with Leases Expiring
	Living Units / Beds(1)					Square Feet
	Triple Net			Cumulative
	Leased Senior	Percent of		Percentage of			Wellness		Percent of		Cumulative
	Living	Total Living		Living Units /			Centers		Total		Percent of
	Communities	Units / Beds		Beds		MOBs	(Square	Total Square	Square Feet		Total Square
Year	(Units / Beds)	Expiring		Expiring		(Square Feet)	Feet)	Feet	Expiring		Feet Expiring
2016	—	—	%	—	%	228,347	—	228,347	1.9	%	1.9	%
2017	—	—	%	—	%	942,781	—	942,781	8.0	%	9.9	%
2018	1,619	6.2	%	6.2	%	848,001	—	848,001	7.2	%	17.1	%
2019	175	0.7	%	6.9	%	1,271,794	—	1,271,794	10.8	%	27.9	%
2020	—	—	%	6.9	%	1,433,002	—	1,433,002	12.2	%	40.1	%
2021	361	1.4	%	8.3	%	467,156	—	467,156	4.0	%	44.1	%
2022	—	—	%	8.3	%	579,302	—	579,302	4.9	%	49.0	%
2023	644	2.5	%	10.8	%	749,779	354,000	1,103,779	9.4	%	58.4	%
2024	6,561	25.1	%	35.9	%	1,393,641	—	1,393,641	11.9	%	70.3	%
Thereafter	16,734	64.1	%	100.0	%	3,015,490	458,000	3,473,490	29.7	%	100.0	%
Total	26,094	100.0	%			10,929,293	812,000	11,741,293	100.0	%

(1) Excludes 8,797 living units from our managed senior living communities leased to our TRSs. If the number of living units included in our TRS leases using the terms of the management agreements for these communities were included in the foregoing table, the percent of total living units / beds expiring in each of the following years would be: 2016 — 0.0%; 2017 — 0.0%; 2018 — 4.6%; 2019 — 0.5%; 2020 — 0.0%; 2021 — 1.0%; 2022 — 0.0%; 2023 — 1.8%; 2024 — 18.8%; and thereafter — 73.3%.

During the three months ended September 30, 2016, we entered into MOB lease renewals for 139,000 leasable square feet and new leases for 54,000 leasable square feet. The weighted average annual rental rate for leases entered into during the quarter was $35.48 per square foot, and these rental rates were, on a weighted average basis, 0.4% below previous rents charged for the same space.  Average lease terms for leases entered into during the third quarter of 2016 were 7.0 years based on annualized rental income pursuant to existing leases as of September 30, 2016, including straight line rent adjustments and estimated recurring expense reimbursements and excluding lease value amortization. Commitments for tenant improvement costs, leasing commission costs and concessions for leases we entered into during the third quarter of 2016 totaled $5.0 million, or $25.85 per square foot on average (approximately $3.72 per square foot per year of the lease term).

During the past several years, weak economic conditions in many markets throughout the country have negatively affected many businesses within our industry and others. These conditions have resulted in, among other things, a decrease in our senior living communities’ occupancy, and it is unclear when these conditions may materially improve. Although many of the services that our senior living community tenants and managers provide to residents are needs driven, some prospective residents may

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be deferring decisions to relocate to senior living communities in light of current economic circumstances.  In recent years, economic indicators reflect an improving housing market; however, it is unclear how sustainable the improvements will be and whether any such improvements will result in any increased demand for the services that our tenants and managers provide.  For the past two to three years, low capital costs appear to have encouraged increased senior living development, particularly in certain higher demand markets.  As the recently developed senior living communities begin operations, we expect to experience continuing challenges in maintaining or increasing occupancy at, or the rates that our tenants and managers charge residents of, our senior living communities.

RESULTS OF OPERATIONS (dollars and square feet in thousands, unless otherwise noted)

We have four operating segments, of which three are separate reporting segments: (i) triple net senior living communities that provide short term and long term residential care and other services for residents, (ii) managed senior living communities that provide short term and long term residential care and other services for residents and (iii) MOBs. The “All Other” category includes all of our other operations, including certain properties that offer wellness, fitness and spa services to members, which segment we do not consider to be sufficiently material to constitute a separate reporting segment.

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2016			2015			2016			2015
Revenues:
Triple net leased senior living communities	$	66,520		$	64,222		$	198,269		$	180,820
Managed senior living communities	98,480			96,412			292,803			271,061
MOBs	94,404			90,072			278,964			265,664
All other operations	4,579			4,569			13,689			13,709
Total revenues	$	263,983		$	255,275		$	783,725		$	731,254
Net income:
Triple net leased senior living communities	$	38,327		$	38,838		$	117,621		$	110,992
Managed senior living communities	(1,612		)	2,476			3,500			18,208
MOBs	29,353			32,741			91,464			96,634
All other operations	(38,165		)	(35,806		)	(114,176		)	(111,409		)
Net income	$	27,903		$	38,249		$	98,409		$	114,425

The following sections analyze and discuss the results of operations of each of our segments for the periods presented.

Three Months Ended September 30, 2016 Compared to Three Months Ended September 30, 2015 (dollars in thousands, except average monthly rate):

Unless otherwise indicated, references in this section to changes or comparisons of results, income or expenses refer to comparisons of the results for the three months ended September 30, 2016 to the comparable 2015 period.

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Triple net leased senior living communities:    

	All Properties				Comparable Properties (1)
	As of and for the Three Months				As of and for the Three Months
	Ended September 30,				Ended September 30,
	2016		2015		2016		2015
Total properties	234		232		226		226
# of units / beds	26,094		26,231		25,465		25,465
Tenant operating data (2)
Occupancy	85.3	%	85.8	%	85.2	%	85.8	%
Rent coverage	1.33x		1.36x		1.33x		1.36x

(1) Consists of triple net leased senior living communities we have owned continuously since July 1, 2015.

(2) All tenant operating data presented are based upon the operating results provided by our tenants for the 12 months ended June 30, 2016 and 2015 or the most recent prior period for which tenant operating results are made available to us.  Rent coverage is calculated as operating cash flows from our triple net lease tenants’ operations of our properties, before subordinated charges, if any, divided by triple net lease minimum rents payable to us.  We have not independently verified tenant operating data.  Excludes data for historical periods prior to our ownership of certain properties, as well as for properties sold during the periods presented.

Triple net leased senior living communities, all properties:

	Three Months Ended September 30,
	2016			2015			Change			% Change
Rental income	$	66,520		$	64,222		$	2,298		3.6	%
Property operating expenses	(47		)	—			47			100.0	%
Net operating income (NOI)	66,473			64,222			2,251			3.5	%
Depreciation and amortization expense	(19,727		)	(19,140		)	587			3.1	%
Impairment of assets	(2,191		)	98			2,289			2,335.7	%
Operating income	44,555			45,180			(625		)	(1.4	)%
Interest expense	(6,228		)	(6,342		)	(114		)	(1.8	)%
Net income	$	38,327		$	38,838		$	(511	)	(1.3	)%

Except as noted below under “Rental income”, we have not included a discussion and analysis of the results of our comparable properties data for the triple net leased senior living communities segment as we believe that a comparison of the results for our comparable properties within our triple net leased senior living communities segment is generally consistent from quarter to quarter and a separate, comparable properties comparison is not meaningful.

Rental income. Rental income increased primarily because of our acquisitions since July 1, 2015. Rental income also increased due to our purchases of capital improvements at certain of these communities since July 1, 2015. These increases in rental income were partially offset by our sale of four senior living communities since July 1, 2015. Rental income includes non-cash straight line rent adjustments totaling $865 and $1,373 for the three months ended September 30, 2016 and 2015, respectively. Rental income increased year over year on a comparable property basis by $798, primarily as a result of our capital improvement purchases at certain of the 226 communities we have owned continuously since July 1, 2015 and the resulting increase in rent pursuant to the terms of the applicable leases.

Property operating expenses. Property operating expenses recorded in 2016 relate to bad debt reserves associated with the defaulted lease at one triple net leased senior living community we acquired in 2015 which was previously leased to a third party private operator. In July 2016, we terminated the lease at this community and entered into a management agreement with Five Star to operate this community for our account under a TRS structure.

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Net operating income.  NOI increased because of the increase in rental income, partially offset by the increased property operating expenses described above.  We typically incur minimal property operating expenses at these communities, as the majority of those expenses are paid by our tenants. The reconciliation of NOI to net income for our triple net leased senior living communities segment is shown in the table above. Our definition of NOI and our reconciliation of consolidated NOI to net income are included below under the heading “Non-GAAP Financial Measures”.

Depreciation and amortization expense.  Depreciation and amortization expense increased primarily as a result of our acquisitions and capital improvement purchases described above.

Impairment of assets. Impairment of assets charges recorded in 2016 relate to reducing the carrying value of one SNF that was previously leased to Five Star and was sold during the third quarter of 2016 to its sale price less cost to sell. In the third quarter of 2015, we adjusted the carrying value of two properties that we sold during the third quarter of 2015 by $98, to their sales prices less costs to sell.

Interest expense.  Interest expense relates to mortgage debts and capital leases secured by certain of these communities.

Managed senior living communities:

	All Properties						Comparable Properties (1)
	As of and for the Three Months						As of and for the Three Months
	Ended September 30,						Ended September 30,
	2016			2015			2016			2015
Total properties	68			65			65			65
# of units / beds	8,797			8,606			8,496			8,496
Occupancy	86.7		%	87.7		%	87.2		%	87.8		%
Average monthly rate	$	4,208		$	4,161		$	4,229		$	4,171

(1) Consists of managed senior living communities we have owned continuously since July 1, 2015 and excludes communities classified as held for sale.

Managed senior living communities, all properties:    

	Three Months Ended September 30,
	2016			2015			Change			% Change
Residents fees and services	$	98,480		$	96,412		$	2,068		2.1	%
Property operating expenses	(74,763		)	(71,983		)	2,780			3.9	%
Net operating income (NOI)	23,717			24,429			(712		)	(2.9	)%
Depreciation and amortization expense	(20,747		)	(19,248		)	1,499			7.8	%
Impairment of assets	(2,394		)	—			2,394			100.0	%
Operating income	576			5,181			(4,605		)	(88.9	)%
Interest expense	(2,104		)	(2,705		)	(601		)	(22.2	)%
Loss on early extinguishment of debt	(84		)	—			84			100.0	%
Net (loss) income	$	(1,612	)	$	2,476		$	(4,088	)	(165.1	)%

Residents fees and services. Residents fees and services are the revenues earned at our managed senior living communities.  We recognize these revenues as fees are charged and services are provided.  Residents fees and services increased primarily due to our acquisitions and the transfer of certain other senior living communities we own from triple net leased senior living communities to managed senior living communities since July 1, 2015, as well as an increase in average monthly rates, offset, in part, by a decline in occupancy.

Property operating expenses.  Property operating expenses consist of management fees, real estate taxes, utility expense, insurance, salaries and benefits of property level personnel, repairs and maintenance expense, cleaning expense and other direct

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costs of operating these communities. Property operating expenses increased primarily due to our acquisitions and the transfer of certain other senior living communities we own from triple net leased senior living communities to managed senior living communities since July 1, 2015, increases in real estate taxes, salaries and benefits of property level personnel, utility expense and management fees earned by Five Star as a result of the modifications made to our management and pooling arrangements with Five Star that took effect on July 1, 2016.

Net operating income.  NOI decreased because of the increases in property operating expenses, partially offset by the increase in residents fees and services described above.  The reconciliation of NOI to net income for our managed senior living communities segment is shown in the table above.  Our definition of NOI and our reconciliation of consolidated NOI to net income are included below under the heading “Non-GAAP Financial Measures”.

Depreciation and amortization expense.  Depreciation and amortization expense includes the depreciation of owned property and equipment as well as the amortization expense of in place resident agreements assumed upon the acquisition of a community. Depreciation and amortization expense increased primarily as a result of our acquisitions and the transfer of certain other senior living communities we own from triple net leased senior living communities to managed senior living communities since July 1, 2015, as well as funding of capital improvements since July 1, 2015.

Impairment of assets. Impairment of assets charges recorded in 2016 relate to reducing the carrying value of one senior living community that is classified as held for sale as of September 30, 2016 to its estimated fair value less cost to sell.

Interest expense. Interest expense relates to mortgage debts secured by certain of these communities.  The decrease in interest expense is due to our prepayment of $97,943 in aggregate principal amount of mortgage debts since July 1, 2015 with a weighted average annual interest rate of 5.97%, as well as regularly scheduled amortization of our mortgage debts.

Loss on early extinguishment of debt. Loss on early extinguishment of debt is a result of our prepayment of three mortgage notes in the third quarter of 2016.

Managed senior living communities, comparable properties (managed senior living communities we have owned continuously since July 1, 2015 excluding communities classified as held for sale):

	Three Months Ended September 30,
	2016			2015			Change			% Change
Residents fees and services	$	96,415		$	96,206		$	209		0.2	%
Property operating expenses	(72,381		)	(71,465		)	916			1.3	%
Net operating income (NOI)	24,034			24,741			(707		)	(2.9	)%
Depreciation and amortization expense	(19,859		)	(19,245		)	614			3.2	%
Operating income	4,175			5,500			(1,325		)	(24.1	)%
Interest expense	(1,958		)	(2,705		)	(747		)	(27.6	)%
Loss on early extinguishment of debt	(84		)	—			84			100.0	%
Net income	$	2,133		$	2,795		$	(662	)	(23.7	)%

Residents fees and services. Residents fees and services are the revenues earned at our managed senior living communities.  We recognize these revenues as fees are charged and services are provided.  Residents fees and services increased year over year on a comparable property basis primarily because of an increase in average monthly rates of 1.4% for the 2016 period compared to the 2015 period at the 65 communities we owned continuously since July 1, 2015, partially offset by a decrease in occupancy from 87.8% during the three months ended September 30, 2015 to 87.2% during the three months ended September 30, 2016.

Property operating expenses.  Property operating expenses consist of management fees, real estate taxes, utility expense, insurance, salaries and benefit costs of property level personnel, repairs and maintenance expense, cleaning expense and other direct costs of operating these communities.  Property operating expenses increased primarily due to increases in real estate taxes, in management fees earned by Five Star as a result of the modifications made to our management and pooling arrangements with Five Star that took effect on July 1, 2016 and other increased costs during the three months ended September 30, 2016 compared to the three months ended September 30, 2015.

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Net operating income.  The decrease in NOI reflects the net changes in residents fees and services and property operating expenses described above.  The reconciliation of NOI to net income for our managed senior living communities segment, comparable properties, is shown in the table above.  Our definition of NOI and our reconciliation of consolidated NOI to net income are included below under the heading “Non-GAAP Financial Measures”.

Depreciation and amortization expense.  Depreciation and amortization expense includes the depreciation of owned property and equipment as well as the amortization expense of in place resident agreements assumed upon the acquisition of a community. The increase in depreciation and amortization expense results from our funding of capital improvements since July 1, 2015.

Interest expense. Interest expense relates to mortgage debts secured by certain of these communities.  Interest expense decreased as a result of our prepayment of $97,943 in aggregate principal amount of mortgage debts since July 1, 2015 with a weighted average annual interest rate of 5.97%, as well as regularly scheduled amortization of our mortgage debts.

Loss on early extinguishment of debt. Loss on early extinguishment of debt is a result of our prepayment of three mortgage notes in the third quarter of 2016.

MOBs:

	All Properties				Comparable Properties(1)
	As of and for the Three Months				As of and for the Three Months
	Ended September 30,				Ended September 30,
	2016		2015		2016		2015
Total properties	119		121		116		116
Total buildings	145		145		140		140
Total square feet (2)	11,401		11,315		11,041		11,040
Occupancy (3)	95.9	%	96.0	%	96.3	%	96.0	%

(1) Consists of MOBs we have owned continuously since July 1, 2015 and excludes properties classified as held for sale.

(2) Prior periods exclude space remeasurements made subsequent to those periods.

(3) MOB occupancy includes (i) space being fitted out for occupancy pursuant to existing leases and (ii) space which is leased, but is not occupied or is being offered for sublease by tenants.

MOBs, all properties:

	Three Months Ended September 30,
	2016			2015			Change			% Change
Rental income	$	94,404		$	90,072		$	4,332		4.8	%
Property operating expenses	(28,537		)	(24,944		)	3,593			14.4	%
Net operating income (NOI)	65,867			65,128			739			1.1	%
Depreciation and amortization expense	(30,922		)	(30,680		)	242			0.8	%
Impairment of assets	7			—			(7		)	(100.0	)%
Operating income	34,952			34,448			504			1.5	%
Interest expense	(5,599		)	(1,707		)	3,892			228.0	%
Net income	$	29,353		$	32,741		$	(3,388	)	(10.3	)%

Rental income.Rental income increased primarily because of our acquisitions since July 1, 2015, as well as certain changes at our comparable MOB properties discussed below. Rental income includes non-cash straight line rent adjustments totaling $3,290 and $3,530 and net amortization of approximately $1,181 and $1,029 of above and below market lease adjustments for the three months ended September 30, 2016 and 2015, respectively.

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Property operating expenses. Property operating expenses consist of real estate taxes, utility expense, property management fees, salaries and benefit costs of property level personnel, repairs and maintenance expense, cleaning expense and other direct costs of operating these properties.  Property operating expenses increased primarily because of our acquisitions since July 1, 2015, as well as certain changes at our comparable MOB properties discussed below.

Net operating income.  NOI increased because of the increases in rental income, partially offset by the increased property operating expenses described above.  The reconciliation of NOI to net income for our MOB segment is shown in the table above.  Our definition of NOI and our reconciliation of consolidated NOI to net income are included below under the heading “Non-GAAP Financial Measures”.

Depreciation and amortization expense.  Depreciation and amortization expense increased primarily because of an increase in depreciation expense related to our acquisitions and funding of capital expenditures since July 1, 2015, partially offset by a decrease in the amortization of acquired in place real estate leases during the three months ended September 30, 2016 that we amortize over the respective lease terms.

Impairment of assets. We recorded a reversal of impairment charges previously recorded of $7 in the third quarter of 2016 to adjust the carrying value of four MOBs that we sold in the third quarter of 2016 to their sales prices less costs to sell.

Interest expense.  Interest expense relates to mortgage debts secured by certain of these properties.  The increase in interest expense is the result of our obtaining, in July 2016, an aggregate $620,000 secured debt financing with a weighted average fixed annual interest rate of 3.53%, partially offset by our prepayment of $70,000 in aggregate principal amount of mortgage debts since July 1, 2015 with a weighted average annual interest rate of 5.39%, as well as the regularly scheduled amortization of our mortgage debts.

MOBs, comparable properties (MOBs we have owned continuously since July 1, 2015 excluding properties classified as held for sale):

	Three Months Ended September 30,
	2016			2015			Change			% Change
Rental income	$	91,536		88,918			$	2,618		2.9	%
Property operating expenses	(27,815		)	(24,783		)	3,032			(12.2	)%
Net operating income (NOI)	63,721			64,135			(414		)	(0.6	)%
Depreciation and amortization expense	(30,339		)	(30,244		)	95			(0.3	)%
Operating income	33,382			33,891			(509		)	(1.5	)%
Interest expense	(5,599		)	(1,707		)	3,892			(228.0	)%
Net income	$	27,783		$	32,184		$	(4,401	)	(13.7	)%

Rental income. Rental income increased primarily due to an increase in tax escalation income and other reimbursable expenses and increased net leasing activity at certain of these properties. Rental income includes non-cash straight line rent adjustments totaling $3,033 and $3,594 and net amortization of approximately $1,118 and $968 of above and below market lease adjustments for the three months ended September 30, 2016 and 2015, respectively.

Property operating expenses.  Property operating expenses consist of real estate taxes, utility expense, property management fees, salaries and benefit costs of property level personnel, repairs and maintenance expense, cleaning expense and other direct costs of operating these properties. Property operating expenses increased primarily as the result of increases in real estate taxes and salaries and benefit costs of property level personnel at certain of these properties and other direct costs of operating these properties during the third quarter of 2016 compared to the third quarter of 2015.

Net operating income.  NOI reflects the net changes in rental income and property operating expenses described above.  The reconciliation of NOI to net income for our MOB segment for comparable properties is shown in the table above.  Our definition of NOI and our reconciliation of consolidated NOI to net income are included below under the heading “Non-GAAP Financial Measures”.

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Depreciation and amortization expense.  Depreciation and amortization expense increased slightly due to an increase in the amortization of leasing costs and depreciation expense on fixed assets, partially offset by a reduction in amortization of acquired in place real estate leases that we amortize over the respective lease terms.

Interest expense.  Interest expense relates to mortgage debts secured by certain of these properties.  The increase in interest expense is the result of our obtaining, in July 2016, an aggregate $620,000 secured debt financing with a weighted average fixed annual interest rate of 3.53%, partially offset by our prepayment of $70,000 in aggregate principal amount of mortgage debts since July 1, 2015 with a weighted average annual interest rate of 5.39%, as well as the regularly scheduled amortization of our mortgage debts.

All other operations⁽¹⁾: 

	Three Months Ended September 30,
	2016			2015			Change			% Change
Rental income	$	4,579		$	4,569		$	10		0.2	%
Expenses:
Depreciation and amortization expense	(948		)	(948		)	—			—
General and administrative	(12,107		)	(10,316		)	1,791			17.4	%
Acquisition and certain other transaction related costs	(824		)	(742		)	82			11.1	%
Total expenses	(13,879		)	(12,006		)	1,873			15.6	%
Operating loss	(9,300		)	(7,437		)	1,863			25.1	%
Dividend income	659			—			659			100.0	%
Interest and other income	89			57			32			56.1	%
Interest expense	(29,507		)	(28,235		)	1,272			4.5	%
Loss on early extinguishment of debt	—			(21		)	21			(100.0	)%
Loss before income tax expense and equity in earnings (losses) of an investee	(38,059		)	(35,636		)	2,423			6.8	%
Income tax expense	(119		)	(146		)	(27		)	(18.5	)%
Equity in earnings (losses) of an investee	13			(24		)	37			154.2	%
Net loss	$	(38,165	)	$	(35,806	)	$	2,359		6.6	%

(1) All other operations includes all of our other operations, including certain properties that offer wellness, fitness and spa services to members, which segment we do not consider to be sufficiently material to constitute a separate reporting segment, and any operating expenses that are not attributable to a specific reporting segment.

Rental income. Rental income includes non-cash straight line rent totaling approximately $137 and $138 for each of the three months ended September 30, 2016 and 2015, respectively. Rental income also includes net amortization of approximately $55 of acquired real estate leases and obligations for each of the three months ended September 30, 2016 and 2015.

Depreciation and amortization expense.  Depreciation and amortization expense remained consistent as we had no acquisitions or capital expenditures in this segment since July 1, 2015. We generally depreciate our long lived wellness center assets on a straight line basis.

General andadministrative expense.  General and administrative expenses consist of fees and expenses of our Trustees, fees paid to RMR LLC under our business management agreement, equity compensation expense, legal and accounting fees and other costs relating to our status as a publicly owned company. General and administrative expenses increased primarily due to our acquisitions since July 1, 2015, as well as increased equity compensation expense resulting from an increase in the trading price of our common shares.

Acquisition and certain other transaction related costs.  Acquisition and certain other transaction related costs represent legal and professional fees, including due diligence costs, incurred in connection with our acquisition and disposition activities during the three months ended September 30, 2016 and 2015. Acquisition and certain other transaction related costs increased during the three months ended September 30, 2016 due to an increase in such activities during the three months ended September 30, 2016 compared to the three months ended September 30, 2015.

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Dividend income. Dividend income recognized for the three months ended September 30, 2016 is a result of cash dividends we received during the third quarter of 2016 from our investment in RMR Inc. shares for the second quarter of 2016.

Interest and other income.  The increase in interest and other income is primarily due to increased investable cash on hand during the third quarter of 2016 compared to the third quarter of 2015.

Interest expense.  Interest expense increased due to our borrowing a $200,000 term loan in September 2015 at an interest rate of LIBOR plus a premium of 180 basis points, as well as our issuance of $250,000 of 6.25% senior unsecured notes due 2046 in February 2016. These increases were partially offset by our November 2015 prepayment of our $250,000 of 4.30% senior unsecured notes due 2016 and decreased borrowings under our revolving credit facility during the three months ended September 30, 2016 compared to the three months ended September 30, 2015.

Loss on early extinguishment of debt: In September 2015, we amended our revolving credit facility, which resulted in a loss on extinguishment of debt of $21.

Income tax expense: Income tax expense primarily reflects state income taxes payable in certain jurisdictions.

Equity in earnings of an investee.  Equity in earnings of an investee represents our proportionate share of earnings from AIC.

Nine Months Ended September 30, 2016 Compared to Nine Months Ended September 30, 2015 (dollars in thousands, except average monthly rate):

Unless otherwise indicated, references in this section to changes or comparisons of results, income or expenses refer to comparisons of the results for the nine months ended September 30, 2016 against the comparable 2015 period.

Triple net leased senior living communities: 

	All Properties				Comparable Properties (1)
	As of and for the Nine Months				As of and for the Nine Months
	Ended September 30,				Ended September 30,
	2016		2015		2016		2015
Total properties	234		232		209		209
# of units / beds	26,094		26,231		23,509		23,509
Tenant operating data (2)
Occupancy	85.3	%	85.8	%	84.6	%	85.7	%
Rent coverage	1.33x		1.36x		1.35x		1.36x

(1) Consists of triple net leased senior living communities we have owned continuously since January 1, 2015.

(2) All tenant operating data presented are based upon the operating results provided by our tenants for the 12 months ended June 30, 2016 and 2015 or the most recent prior period for which tenant operating results are made available to us.  Rent coverage is calculated as operating cash flows from our triple net lease tenants’ operations of our properties, before subordinated charges, if any, divided by triple net lease minimum rents payable to us.  We have not independently verified tenant operating data.  Excludes data for historical periods prior to our ownership of certain properties, as well as for properties sold during the periods presented.

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Triple net leased senior living communities, all properties: 

	Nine Months Ended September 30,
	2016			2015			Change			% Change
Rental income	$	198,269		$	180,820		$	17,449		9.6	%
Property operating expenses	(833		)	—			833			100.0	%
Net operating income (NOI)	197,436			180,820			16,616			9.2	%
Depreciation and amortization expense	(58,401		)	(51,322		)	7,079			13.8	%
Impairment of assets	(6,583		)	98			6,681			6,817.3	%
Operating income	132,452			129,596			2,856			2.2	%
Interest expense	(18,892		)	(18,598		)	294			1.6	%
Loss on early extinguishment of debt	—			(6		)	(6		)	(100.0	)%
Gain on sale of properties	4,061			—			4,061			100.0	%
Net income	$	117,621		$	110,992		$	6,629		6.0	%

Except as noted below under “Rental income”, we have not included a discussion and analysis of the results of our comparable properties data for the triple net leased senior living communities segment as we believe that a comparison of the results for our comparable properties within our triple net leased senior living communities segment is generally consistent from quarter to quarter and a separate, comparable properties comparison is not meaningful.

Rental income. Rental income increased primarily because of our acquisitions since January 1, 2015. Rental income also increased due to our purchases of capital improvements at certain of these communities since January 1, 2015. These increases in rental income were partially offset by our sale of six senior living communities since January 1, 2015. Rental income includes non-cash straight line rent adjustments totaling $3,184 and $2,675 for the nine months ended September 30, 2016 and 2015, respectively. Rental income increased year over year on a comparable property basis by $1,986, primarily as a result of our capital improvement purchases at certain of the 209 communities we have owned continuously since January 1, 2015 and the resulting increase in rent pursuant to the terms of the applicable leases.

Property operating expenses. Property operating expenses recorded in 2016 relate to bad debt reserves associated with the defaulted leases at two triple net leased senior living communities we acquired in 2015 which were previously leased to third party private operators.  In April and July 2016, we terminated these leases and entered into management agreements with Five Star to operate the communities for our account under a TRS structure. In connection with the termination of one of these leases, we received $2,365 in past due amounts from the guarantor under the lease.

Net operating income.  NOI increased because of the increase in rental income, partially offset by the increased property operating expenses described above.  We typically incur minimal property operating expenses at these communities, as the majority of those expenses are paid by our tenants. The reconciliation of NOI to net income for our triple net leased senior living communities segment is shown in the table above.  Our definition of NOI and our reconciliation of consolidated NOI to net income are included below under the heading “Non-GAAP Financial Measures”.

Depreciation and amortization expense.  Depreciation and amortization expense increased primarily as a result of our acquisitions and funding of capital improvement purchases described above.

Impairment of assets. Impairment of assets charges recorded in 2016 relate to the write off of acquired lease intangible assets associated with the lease defaults at two communities discussed above, as well as a reduction of the carrying value of one SNF that was previously leased to Five Star and was sold during the third quarter of 2016 to its sale price less cost to sell. In the third quarter of 2015, we adjusted the carrying value of two properties that we sold during the third quarter of 2015 by $98, to their sales prices less costs to sell.

Interest expense. Interest expense relates to mortgage debts and capital leases secured by certain of these communities.

Loss on early extinguishment of debt. Loss on early extinguishment of debt is a result of our prepayment of three mortgage notes during the second quarter of 2015.

Gain on sale of properties. Gain on sale of properties is the result of our sale of one SNF in June 2016.

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Managed senior living communities:

	All Properties						Comparable Properties (1)
	As of and for the Nine Months						As of and for the Nine Months
	Ended September 30,						Ended September 30,
	2016			2015			2016			2015
Total properties	68			65			46			46
# of units / beds	8,797			8,606			7,217			7,217
Occupancy	87.2		%	87.8		%	86.9		%	87.4		%
Average monthly rate	$	4,251		$	4,224		$	4,340		$	4,279

(1) Consists of managed senior living communities we have owned continuously since January 1, 2015 and excludes communities classified as held for sale.

Managed senior living communities, all properties:    

	Nine Months Ended September 30,
	2016			2015			Change			% Change
Residents fees and services	$	292,803		$	271,061		$	21,742		8.0	%
Property operating expenses	(218,582		)	(204,178		)	14,404			7.1	%
Net operating income (NOI)	74,221			66,883			7,338			11.0	%
Depreciation and amortization expense	(60,905		)	(41,357		)	19,548			47.3	%
Impairment of assets	(2,394		)	—			2,394			100.0	%
Operating income	10,922			25,526			(14,604		)	(57.2	)%
Interest expense	(7,332		)	(7,285		)	47			0.6	%
Loss on early extinguishment of debt	(90		)	(33		)	57			172.7	%
Net income	$	3,500		$	18,208		$	(14,708	)	(80.8	)%

Residents fees and services. Residents fees and services are the revenues earned at our managed senior living communities.  We recognize these revenues as fees are charged and services are provided.  Residents fees and services increased primarily due to our acquisitions and the transfer of certain other senior living communities we own from triple net leased senior living communities to managed senior living communities since January 1, 2015.

Property operating expenses.  Property operating expenses consist of management fees, real estate taxes, utility expense, insurance, salaries and benefits of property level personnel, repairs and maintenance expense, cleaning expense and other direct costs of operating these communities. Property operating expenses increased primarily due to our acquisitions and the transfer of certain other senior living communities we own from triple net leased senior living communities to managed senior living communities since January 1, 2015 and management fees earned by Five Star as a result of the modifications made to our management and pooling arrangements with Five Star that took effect on July 1, 2016.

Net operating income.  NOI increased because of the increases in residents fees and services, partially offset by the increased property operating expenses described above.  The reconciliation of NOI to net income for our managed senior living communities segment is shown in the table above.  Our definition of NOI and our reconciliation of consolidated NOI to net income are included below under the heading “Non-GAAP Financial Measures”.

Depreciation and amortization expense.  Depreciation and amortization expense includes the depreciation of owned property and equipment as well as the amortization expense of in place resident agreements assumed upon the acquisition of a community. Depreciation and amortization expense increased primarily as a result of our acquisitions and funding of capital improvements since January 1, 2015.

Impairment of assets. Impairment of assets charges recorded in 2016 relate to reducing the carrying value of one senior living community that is classified as held for sale as of September 30, 2016 to its estimated fair value less cost to sell.

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Interest expense. Interest expense relates to mortgage debts secured by certain of these communities.  The slight increase in interest expense is due to our assumption of $94,786 in aggregate principal amount of mortgage debts with a weighted average annual interest rate of 4.12% in connection with our acquisitions since January 1, 2015, partially offset by our prepayment or repayment of $143,897 in aggregate principal amount of mortgage debts since January 1, 2015 with a weighted average annual interest rate of 5.94%, as well as regularly scheduled amortization of our mortgage debts.

Loss on early extinguishment of debt. Loss on early extinguishment of debt is a result of our prepayment of mortgage notes in 2016 and 2015.

Managed senior living communities, comparable properties (managed senior living communities we have owned continuously since January 1, 2015 excluding communities classified as held for sale): 

	Nine Months Ended September 30,
	2016			2015			Change			% Change
Residents fees and services	$	248,621		248,223			$	398		0.2	%
Property operating expenses	(185,972		)	(187,214		)	(1,242		)	(0.7	)%
Net operating income (NOI)	62,649			61,009			1,640			2.7	%
Depreciation and amortization expense	(28,210		)	(25,823		)	2,387			9.2	%
Operating income	34,439			35,186			(747		)	(2.1	)%
Interest expense	(4,044		)	(5,532		)	(1,488		)	(26.9	)%
Loss on early extinguishment of debt	(90		)	(33		)	57			172.7	%
Net income	$	30,305		$	29,621		$	684		2.3	%

Residents fees and services. Residents fees and services are the revenues earned at our managed senior living communities.  We recognize these revenues as fees are charged and services are provided.  Residents fees and services increased slightly year over year on a comparable property basis primarily because of an increase in average monthly rates of approximately 1.4% at the 46 communities we have owned continuously since January 1, 2015, partially offset by a decrease in occupancy.

Property operating expenses.  Property operating expenses consist of management fees, real estate taxes, utility expense, insurance, salaries and benefit costs of property level personnel, repairs and maintenance expense, cleaning expense and other direct costs of operating these communities.  Property operating expenses decreased during the first nine months of 2016 compared to the first nine months of 2015 primarily due to decreased salaries and benefit costs of property level personnel, partially offset by an increase in management fees earned by Five Star as a result of the modifications made to our management and pooling arrangements with Five Star that took effect July 1, 2016.

Net operating income.  The increase in NOI reflects the net changes in residents fees and services and property operating expenses described above.  The reconciliation of NOI to net income for our managed senior living communities segment, comparable properties, is shown in the table above.  Our definition of NOI and our consolidated reconciliation of NOI to net income are included below under the heading “Non-GAAP Financial Measures”.

Depreciation and amortization expense.  Depreciation and amortization expense includes the depreciation of owned property and equipment as well as the amortization expense of in place resident agreements assumed upon the acquisition of a community. The increase in depreciation and amortization expense results from our funding of capital improvements since January 1, 2015.

Interest expense. Interest expense relates to mortgage debts secured by certain of these communities.  Interest expense decreased as a result of our prepayment or repayment of $143,897 in aggregate principal amount of mortgage debts since January 1, 2015 with a weighted average annual interest rate of 5.94%, as well as regularly scheduled amortization of our mortgage debts.

Loss on early extinguishment of debt. Loss on early extinguishment of debt is a result of our prepayment of mortgage notes in 2016 and 2015.

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MOBs:

	All Properties				Comparable Properties (1)
	As of and for the Nine Months				As of and for the Nine Months
	Ended September 30,				Ended September 30,
	2016		2015		2016		2015
Total properties	119		121		93		93
Total buildings	145		145		117		117
Total square feet (2)	11,401		11,315		8,872		8,870
Occupancy (3)	95.9	%	96.0	%	95.4	%	95.0	%

(1) Consists of MOBs we have owned continuously since January 1, 2015 and excludes properties classified as held for sale.

(2) Prior periods exclude space remeasurements made subsequent to those periods.

(3) MOB occupancy includes (i) space being fitted out for occupancy pursuant to existing leases and (ii) space which is leased, but is not occupied or is being offered for sublease by tenants.

MOBs, all properties:

	Nine Months Ended September 30,
	2016			2015			Change			% Change
Rental income	$	278,964		$	265,664		$	13,300		5.0	%
Property operating expenses	(79,361		)	(72,135		)	7,226			10.0	%
Net operating income (NOI)	199,603			193,529			6,074			3.1	%
Depreciation and amortization expense	(92,788		)	(90,711		)	2,077			2.3	%
Impairment of assets	(7,953		)	—			7,953			100.0	%
Operating income	98,862			102,818			(3,956		)	(3.8	)%
Interest expense	(7,398		)	(5,232		)	2,166			41.4	%
Income from continuing operations	91,464			97,586			(6,122		)	(6.3	)%
Discontinued operations:
Loss from discontinued operations	—			(350		)	(350		)	(100.0	)%
Impairment of assets from discontinued operations	—			(602		)	(602		)	(100.0	)%
Net income	$	91,464		$	96,634		$	(5,170	)	(5.4	)%

Rental income.Rental income increased primarily because of our acquisitions since January 1, 2015, as well as certain changes at our comparable MOB properties discussed below. Rental income includes non-cash straight line rent adjustments totaling $10,002 and $10,651 and net amortization of approximately $3,629 and $3,296 of above and below market lease adjustments for the nine months ended September 30, 2016 and 2015, respectively.

Property operating expenses. Property operating expenses consist of real estate taxes, utility expense, property management fees, salaries and benefit costs of property level personnel, repairs and maintenance expense, cleaning expense and other direct costs of operating these properties.  Property operating expenses increased primarily because of our acquisitions since January 1, 2015, as well as certain changes at our comparable MOB properties discussed below.

Net operating income.  NOI increased because of the increases in rental income, partially offset by the increased property operating expenses described above.  The reconciliation of NOI to net income for our MOB segment is shown in the table above.  Our definition of NOI and our reconciliation of consolidated NOI to net income are included below under the heading “Non-GAAP Financial Measures”.

Depreciation and amortization expense.  Depreciation and amortization expense increased primarily because of our acquisitions and funding of capital expenditures since January 1, 2015.

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Impairment of assets. Impairment of assets for the nine months ended September 30, 2016 relates to reducing the carrying value of five MOBs (five buildings) and one land parcel to their estimated sales prices less costs to sell or estimated fair values less costs to sell. As of September 30, 2016, one MOB (one building) was classified as held for sale.

Interest expense.  Interest expense relates to mortgage debts secured by certain of these properties.  The increase in interest expense is the result of our obtaining, in July 2016, an aggregate $620,000 secured debt financing with a weighted average fixed annual interest rate of 3.53%, partially offset by our prepayment of $70,000 in aggregate principal amount of mortgage debts since January 1, 2015 with a weighted average annual interest rate of 5.39%, as well as the regularly scheduled amortization of our mortgage debts.

Impairment of assets and loss from discontinued operations. Impairment of assets and loss from discontinued operations for the nine months ended September 30, 2015 relate to one MOB (four buildings) which we sold in April 2015.

MOBs, comparable properties (MOBs we have owned continuously since January 1, 2015 excluding properties classified as held for sale): 

	Nine Months Ended September 30,
	2016			2015			Change			% Change
Rental income	$	240,441		234,791			$	5,650		2.4	%
Property operating expenses	(71,903		)	(67,443		)	4,460			6.6	%
Net operating income (NOI)	168,538			167,348			1,190			0.7	%
Depreciation and amortization expense	(76,213		)	(76,408		)	(195		)	(0.3	)%
Operating income	92,325			90,940			1,385			1.5	%
Interest expense	(6,848		)	(4,479		)	2,369			52.9	%
Net income	$	85,477		$	86,461		$	(984	)	(1.1	)%

Rental income. Rental income increased primarily due to an increase in tax escalation income and other reimbursable expenses and increased net leasing activity at certain of these properties. Rental income includes non-cash straight line rent adjustments totaling $7,855 and $8,867 and net amortization of approximately $3,339 and $3,134 of above and below market lease adjustments for the nine months ended September 30, 2016 and 2015, respectively.

Property operating expenses.  Property operating expenses consist of real estate taxes, utility expense, property management fees, salaries and benefit costs of property level personnel, repairs and maintenance expense, cleaning expense and other direct costs of operating these properties. Property operating expense increased primarily because of increases in real estate taxes and salaries and benefit costs of property level personnel at certain of these properties and other direct costs of operating these properties, partially offset by decreased landscaping, snow removal and utility expense at certain of these properties during the first nine months of 2016 compared to the first nine months of 2015.

Net operating income.  NOI reflects the net changes in rental income and property operating expenses described above.  The reconciliation of NOI to net income for our MOB segment for comparable properties is shown in the table above.  Our definition of NOI and our reconciliation of consolidated NOI to net income are included below under the heading “Non-GAAP Financial Measures”.

Depreciation and amortization expense.  Depreciation and amortization expense decreased slightly due to a reduction in amortization of acquired in place real estate leases that we amortize over the respective lease terms, partially offset by an increase in the amortization of leasing costs and depreciation expense on fixed assets.

Interest expense.  Interest expense relates to mortgage debts secured by certain of these properties.  The increase in interest expense is the result of our obtaining, in July 2016, an aggregate $620,000 secured debt financing with a weighted average fixed annual interest rate of 3.53%, partially offset by our prepayment of $52,000 in aggregate principal amount of mortgage debts since January 1, 2015 with a weighted average annual interest rate of 5.64% as well as the regularly scheduled amortization of our mortgage debts.

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All other operations⁽¹⁾:

	Nine Months Ended September 30,
	2016			2015			Change			% Change
Rental income	$	13,689		$	13,709		$	(20	)	(0.1	)%
Expenses:
Depreciation and amortization expense	(2,844		)	(2,844		)	—			—
General and administrative	(34,931		)	(32,563		)	2,368			7.3	%
Acquisition and certain other transaction related costs	(1,443		)	(6,517		)	(5,074		)	(77.9	)%
Total expenses	(39,218		)	(41,924		)	(2,706		)	(6.5	)%
Operating loss	(25,529		)	(28,215		)	(2,686		)	(9.5	)%
Dividend income	1,449			—			1,449			100.0	%
Interest and other income	330			274			56			20.4	%
Interest expense	(90,215		)	(81,723		)	8,492			10.4	%
Loss on early extinguishment of debt	—			(1,430		)	(1,430		)	(100.0	)%
Loss before income tax expense and equity in earnings of an investee	(113,965		)	(111,094		)	2,871			2.6	%
Income tax expense	(318		)	(385		)	(67		)	(17.4	)%
Equity in earnings of an investee	107			70			37			52.9	%
Net loss	$	(114,176	)	$	(111,409	)	$	2,767		2.5	%

(1) All other operations includes all of our other operations, including certain properties that offer wellness, fitness and spa services to members, which segment we do not consider to be sufficiently material to constitute a separate reporting segment, and any operating expenses that are not attributable to a specific reporting segment.

Rental income. Rental income includes non-cash straight line rent totaling approximately $412 for each of the nine months ended September 30, 2016 and 2015. Rental income also includes net amortization of approximately $166 of acquired real estate leases and obligations for each of the nine months ended September 30, 2016 and 2015.

Depreciation and amortization expense.  Depreciation and amortization expense remained consistent as we had no acquisitions or other capital expenditures in this segment since January 1, 2015. We generally depreciate our long lived wellness center assets on a straight line basis.

General andadministrative expense.  General and administrative expenses consist of fees and expenses of our Trustees, fees paid to RMR LLC under our business management agreement, equity compensation expense, legal and accounting fees and other costs relating to our status as a publicly owned company. General and administrative expenses increased primarily due to our acquisitions since January 1, 2015 as well as increased equity compensation expense resulting from an increase in the trading price of our common shares.

Acquisition and certain other transaction related costs.  Acquisition and certain other transaction related costs represent legal and professional fees, including due diligence costs, incurred in connection with our acquisition and disposition activities during the nine months ended September 30, 2016 and 2015. Acquisition and certain other transaction related costs decreased during the nine months ended September 30, 2016 due to a decrease in acquisition activity during the nine months ended September 30, 2016 compared to the nine months ended September 30, 2015.

Dividend income. Dividend income recognized for the nine months ended September 30, 2016 is a result of cash dividends we received during 2016 from our investment in RMR Inc. shares for the period from December 14, 2015 through June 30, 2016. 

Interest and other income.  The increase in interest and other income is primarily due to increased investable cash on hand during the first nine months of 2016 compared to the first nine months of 2015.

Interest expense.  Interest expense increased due to our borrowing a $200,000 term loan in September 2015 at an interest rate of LIBOR plus a premium of 180 basis points, as well as our issuance of $250,000 of 6.25% senior unsecured notes due

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2046 in February 2016. These increases were partially offset by our November 2015 prepayment of our $250,000 of 4.30% senior unsecured notes due 2016 and decreased borrowings under our revolving credit facility during the nine months ended September 30, 2016 compared to the nine months ended September 30, 2015.

Loss on extinguishment of debt. In December 2014, we entered into an agreement to acquire 38 senior living communities. Simultaneous with entering this agreement, we obtained a bridge loan commitment for $700,000. In February 2015, we terminated the bridge loan commitment and we recognized a loss of $1,409 on early extinguishment of debt in the first quarter of 2015 in connection with that termination. In September 2015, we amended our revolving credit facility, which resulted in a loss on early extinguishment of debt of $21.

Income tax expense: Income tax expense primarily reflects state income taxes payable in certain jurisdictions.

Equity in earnings of an investee.  Equity in earnings of an investee represents our proportionate share of earnings from AIC.

Non-GAAP Financial Measures (dollars in thousands, except per share amounts)

We provide below calculations of our funds from operations, or FFO, normalized funds from operations, or Normalized FFO, and NOI for the three and nine months ended September 30, 2016 and 2015.  These measures should be considered in conjunction with net income and operating income as presented in our condensed consolidated statements of comprehensive income.  These measures do not represent cash generated by operating activities in accordance with GAAP and should not be considered as alternatives to net income or operating income as an indicator of our operating performance or as a measure of our liquidity. Other real estate companies and REITs may calculate FFO, Normalized FFO or NOI differently than we do.

Funds From Operations and Normalized Funds From Operations

We calculate FFO and Normalized FFO as shown below. FFO is calculated on the basis defined by the National Association of Real Estate Investment Trusts, or NAREIT, which is net income, calculated in accordance with GAAP, excluding any gain or loss on sale of properties and impairment of real estate assets, plus real estate depreciation and amortization, as well as certain other adjustments currently not applicable to us. Our calculation of Normalized FFO differs from NAREIT’s definition of FFO because we include business management incentive fees, if any, only in the fourth quarter versus the quarter when they are recognized as expense in accordance with GAAP due to their quarterly volatility not necessarily being indicative of our core operating performance and the uncertainty as to whether any such business management incentive fees will ultimately be payable when all contingencies for determining any such fees are determined at the end of the calendar year, and we exclude acquisition and certain other transaction related costs such as legal and professional fees associated with our acquisition and disposition activities and gains and losses on early extinguishment of debt, if any. We consider FFO and Normalized FFO to be appropriate supplemental measures of operating performance for a REIT, along with net income and operating income. We believe that FFO and Normalized FFO provide useful information to investors, because by excluding the effects of certain historical amounts, such as depreciation expense, FFO and Normalized FFO may facilitate a comparison of our operating performance between periods and with other REITs. FFO and Normalized FFO are among the factors considered by our Board of Trustees when determining the amount of distributions to our shareholders. Other factors include, but are not limited to, requirements to maintain our qualification for taxation as a REIT, limitations in our revolving credit facility and term loan agreements and our public debt covenants, the availability to us of debt and equity capital, our expectation of our future capital requirements and operating performance, and our expected needs and availability of cash to pay our obligations.

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Our calculations of FFO and Normalized FFO for the three and nine months ended September 30, 2016 and 2015 and reconciliations of net income, the most directly comparable financial measure under GAAP reported in our condensed consolidated financial statements, to FFO and Normalized FFO appear in the following table. This table also provides a comparison of distributions to shareholders, FFO, Normalized FFO and net income per share for these periods.

	Three Months Ended					Nine Months Ended
	September 30,					September 30,
	2016		2015			2016			2015
Net income	$	27,903	$	38,249		$	98,409		$	114,425
Depreciation and amortization expense	72,344		70,016			214,938			186,234
Gain on sale of properties	—		—			(4,061		)	—
Impairment of assets from continuing operations	4,578		(98		)	16,930			(98		)
Impairment of assets from discontinued operations	—		—			—			602
FFO	104,825		108,167			326,216			301,163
Acquisition and certain other transaction related costs	824		742			1,443			6,517
Loss on early extinguishment of debt	84		21			90			1,469
Normalized FFO (1)	$	105,733	$	108,930		$	327,749		$	309,149
Weighted average shares outstanding (basic)	237,347		237,263			237,329			231,454
Weighted average shares outstanding (diluted)	237,396		237,293			237,369			231,486
Net income per share (basic and diluted)	$	0.12	$	0.16		$	0.41		$	0.49
FFO per share (basic and diluted)	$	0.44	$	0.46		$	1.37		$	1.30
Normalized FFO per share (basic and diluted)	$	0.45	$	0.46		$	1.38		$	1.34
Distributions declared per share	$	0.39	$	0.39		$	1.17		$	1.17

(1) Effective as of the quarter ended June 30, 2016, we changed the calculation of Normalized FFO to no longer include adjustments for estimated percentage rent. Historically, when calculating Normalized FFO, we estimated an amount of percentage rental income for each of the first three quarters of the year and then, in the fourth quarter, excluded the amounts that had been included in the first three quarters.  In calculating net income in accordance with GAAP, we recognize percentage rental income for the full year in the fourth quarter, which is when all contingencies are met and the income is earned.  Normalized FFO for historical periods has been restated to be comparable with the current period calculation.

Property Net Operating Income (NOI)

We calculate NOI as shown below. The calculation of NOI excludes certain components of net income in order to provide results that are more closely related to our property level results of operations. We define NOI as income from our real estate less our property operating expenses. NOI excludes amortization of capitalized tenant improvement costs and leasing commissions because we record those amounts as depreciation and amortization. We consider NOI to be an appropriate supplemental measure to net income because it may help both investors and management to understand the operations of our properties. We use NOI internally to evaluate individual and company wide property level performance, and we believe that NOI provides useful information to investors regarding our results of operations because it reflects only those income and expense items that are generated and incurred at the property level and may facilitate comparisons of our operating performance between periods and with other REITs. Other real estate companies and REITs may calculate FFO, Normalized FFO or NOI differently than we do.

The calculation of NOI by reportable segment is included above in this Item 2.  The following table includes the reconciliation of our consolidated NOI to net income, the most directly comparable financial measure under GAAP reported in our condensed consolidated financial statements, for the three and nine months ended September 30, 2016 and 2015.

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	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2016			2015			2016			2015
Reconciliation of NOI to Net Income:
Triple net leased communities NOI	$	66,473		$	64,222		$	197,436		$	180,820
Managed communities NOI	23,717			24,429			74,221			66,883
MOB NOI	65,867			65,128			199,603			193,529
All other operations NOI	4,579			4,569			13,689			13,709
Total NOI	160,636			158,348			484,949			454,941
Depreciation and amortization expense	(72,344		)	(70,016		)	(214,938		)	(186,234		)
General and administrative expense	(12,107		)	(10,316		)	(34,931		)	(32,563		)
Acquisition and certain other transaction related costs	(824		)	(742		)	(1,443		)	(6,517		)
Impairment of assets	(4,578		)	98			(16,930		)	98
Operating income	70,783			77,372			216,707			229,725
Dividend income	659			—			1,449			—
Interest and other income	89			57			330			274
Interest expense	(43,438		)	(38,989		)	(123,837		)	(112,838		)
Loss on early extinguishment of debt	(84		)	(21		)	(90		)	(1,469		)
Income from continuing operations before income tax expense and equity in earnings of an investee	28,009			38,419			94,559			115,692
Income tax expense	(119		)	(146		)	(318		)	(385		)
Equity in earnings of an investee	13			(24		)	107			70
Income from continuing operations	27,903			38,249			94,348			115,377
Loss from discontinued operations	—			—			—			(350		)
Impairment of assets from discontinued operations	—			—			—			(602		)
Income before gain on sale of assets	27,903			38,249			94,348			114,425
Gain on sale of assets	—			—			4,061			—
Net income	$	27,903		$	38,249		$	98,409		$	114,425

LIQUIDITY AND CAPITAL RESOURCES

Our principal sources of funds to meet operating and capital expenses and debt service obligations and to pay distributions on our common shares are rental income revenues from our leased properties, residents fees and services revenues from our managed communities and borrowings under our revolving credit facility. We believe that these sources will be sufficient to meet our operating and capital expenses and debt service obligations and pay distributions on our common shares for the next 12 months and for the foreseeable future thereafter. Our future cash flows from operating activities will depend primarily upon:

• our ability to maintain or increase the occupancy of, and the rental rates at, our properties;

• our ability to control operating expenses at our properties;

• our managers’ ability to operate our managed senior living communities so as to maintain or increase our returns; and

• our ability to purchase additional properties which produce cash flows in excess of our cost of acquisition capital and property operating expenses.

Our Operating Liquidity and Resources

We generally receive minimum rents monthly or quarterly from our tenants, we receive percentage rents from our senior living community tenants monthly, quarterly or annually and we receive residents fees and services revenues, net of expenses, from our managed senior living communities monthly. Our changes in cash flows for the nine months ended September 30, 2016 compared to the nine months ended September 30, 2015 were as follows: (i) cash provided by operating activities increased to $342.4 million in 2016 from $320.8 million in 2015; (ii) cash used for investing activities decreased to $(231.8)

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million in 2016 from $(1.2) billion in 2015; and (iii) cash flows (used for) provided by financing activities decreased to $(107.5) million used in 2016 from $909.0 million provided in 2015.

The increase in cash provided by operating activities for the nine months ended September 30, 2016 compared to the prior year was primarily a result of additional operating income from acquisitions during 2016 as well as working capital changes in 2016, including prepaid expenses, prepaid rent and various accrued expenses and liabilities. Cash used for investing activities decreased in 2016 primarily due to higher acquisition activity in the first nine months of 2015 than in the first nine months of 2016 and higher proceeds from the sale of properties during the nine months ended September 30, 2016, partially offset by increased funding for real estate improvements during the 2016 period. The decrease in cash (used for) provided by financing activities for the nine months ended September 30, 2016 compared to the prior year was due primarily to (i) proceeds of $659.5 million from our issuance of common shares in 2015, (ii) increased aggregate distributions to shareholders in 2016 due to additional common shares outstanding and (iii) net repayments of borrowings under our revolving credit facility in 2016 compared to borrowings under our revolving credit facility in the prior year, partially offset by our issuance of $250.0 million senior unsecured notes and $620.0 million of secured mortgage debt in 2016.

Our Investment and Financing Liquidity and Resources

As of September 30, 2016, we had $40.8 million of cash and cash equivalents and $785.0 million available to borrow under our revolving credit facility. We expect to use cash balances, borrowings under our revolving credit facility, net proceeds from offerings of debt or equity securities and the cash flows from our operations to fund our operations, debt repayments, distributions, property acquisitions, capital expenditures related to the repair, maintenance or renovation of our properties and other general business purposes. We believe these funding sources will be sufficient to fund these activities for the next 12 months and the foreseeable future thereafter.

In order to fund acquisitions and to meet cash needs that may result from timing differences between our receipts of rents and our need or desire to make distributions or pay operating or capital expenses, we maintain a $1.0 billion unsecured revolving credit facility with a group of institutional lenders. The maturity date of our revolving credit facility is January 15, 2018 and, subject to our payment of an extension fee and meeting other conditions, we have an option to extend the stated maturity date of our revolving credit facility by one year to January 15, 2019. In addition, our revolving credit facility includes a feature under which the maximum borrowing availability under the facility may be increased to up to $1.5 billion in certain circumstances. We pay interest on borrowings under our revolving credit facility at a rate of LIBOR plus a premium, which was 130 basis points per annum as of September 30, 2016. We also pay a facility fee of 30 basis points per annum on the total amount of lending commitments under our revolving credit facility. Both the interest rate premium and the facility fee are subject to adjustment based upon changes to our credit ratings. We can borrow, repay and re-borrow funds available under our revolving credit facility until maturity, and no principal repayment is due until maturity. As of September 30, 2016, the annual interest rate required on borrowings under our revolving credit facility was 1.8%. As of September 30, 2016 and November 3, 2016, we had $215.0 million and $265.0 million outstanding under our revolving credit facility, respectively.

When significant amounts are outstanding under our revolving credit facility or as the maturity dates of our revolving credit facility, term loans, senior unsecured notes and mortgage debts approach, we intend to explore alternatives for the repayment of amounts due. Such alternatives may include incurring additional debt, selling certain properties and issuing new equity securities. In addition, we may also seek to participate in joint ventures or other arrangements that may provide us additional sources of financing. We currently have an effective shelf registration statement that allows us to issue public securities on an expedited basis, but it does not assure that there will be buyers for such securities. We may also assume mortgage debts in connection with our acquisitions of properties or place new mortgages on properties we own.

We have a $350.0 million unsecured term loan that matures on January 15, 2020, and is prepayable without penalty, at any time.  In addition, this term loan includes a feature under which maximum borrowings may be increased to up to $700.0 million in certain circumstances. This term loan requires interest to be paid at LIBOR plus a premium (currently 140 basis points per annum) that is subject to adjustment based upon changes to our credit ratings.  As of September 30, 2016, the annual interest rate payable for amounts outstanding under this term loan was 1.9%.

We also have a $200.0 million unsecured term loan that matures on September 28, 2022, and is prepayable without penalty beginning September 29, 2017. In addition, this term loan includes a feature under which maximum borrowings may be increased to up to $400.0 million in certain circumstances. This term loan requires interest to be paid at LIBOR plus a premium (currently 180 basis points per annum) that is subject to adjustment based upon changes to our credit ratings. As of September 30, 2016, the annual interest rate payable for amounts outstanding under this term loan was 2.3%.

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In July 2016, we entered into loan agreements and obtained an aggregate $620.0 million secured debt financing that matures in August 2026.  These loans are secured by one MOB (two buildings) located in Massachusetts and require interest at a weighted average fixed annual interest rate of 3.53%. We used the net proceeds from these loans to repay, in part, the then outstanding amount under our revolving credit facility and for general business purposes.

In February 2016, we issued $250.0 million of 6.25% senior unsecured notes due 2046, raising net proceeds of approximately $241.4 million after underwriting discounts and expenses. We used the net proceeds of this offering to repay, in part, the then outstanding amount under our revolving credit facility and for general business purposes.

In January 2016, we prepaid, at par plus accrued interest, a $6.1 million note secured by one of our properties with a maturity date in April 2016 and an annual interest rate of 5.97%. In April 2016, we prepaid, at par plus accrued interest, an $18 million mortgage note secured by one of our properties with a maturity date in July 2016 and an annual interest rate of 4.65%. In July 2016, we prepaid, at par plus accrued interest, an $11.9 million mortgage note secured by one of our properties with a maturity date in November 2016 and an annual interest rate of 6.25%. In September 2016, we prepaid, at par plus accrued interest, mortgage notes secured by two of our properties with an aggregate principal balance of approximately $80.0 million, maturity dates in November 2016 and a weighted average annual interest rate of 5.92%. In October 2016, we prepaid, at par plus prepayment premiums and accrued interest, mortgage notes secured by eight of our properties with an aggregate principal balance of approximately $42.5 million, maturity dates in May 2017 and a weighted average annual interest rate of 6.54%. Also in October 2016, we gave notice of our intention to prepay, at par plus accrued interest, one mortgage note secured by one of our properties with an outstanding principal balance of approximately $5.4 million, a maturity date in March 2017 and an annual interest rate of 5.86%; we expect to make this prepayment in December 2016.

In February 2016, we acquired one MOB (three buildings) in Minnesota with approximately 128,000 square feet for a purchase price of approximately $22.7 million, excluding closing costs. .

In May 2016, we acquired one senior living community located in Georgia with 38 living units for a purchase price of approximately $8.4 million, excluding closing costs. We acquired this community using a TRS structure, and entered into a management agreement with Five Star to manage this community for our account.  Also in May 2016, we acquired one MOB (one building) located in Florida with approximately 166,000 square feet for a purchase price of approximately $45.0 million, excluding closing costs.

In June 2016, we acquired seven senior living communities located in four states with 545 living units from Five Star for approximately $112.4 million, excluding closing costs, and simultaneously entered into a new long term master lease with Five Star for those communities. See Note 10 to our condensed consolidated financial statements included in Part I, Item 1 of this Quarterly Report on Form 10-Q for further information regarding this sale and leaseback transaction with Five Star.

In October 2016, we acquired one MOB (one building) located in Ohio with approximately 96,000 square feet for approximately $18.5 million, excluding closing costs.

We funded the foregoing acquisitions with cash on hand and borrowings under our revolving credit facility.

In September 2016, we entered into an agreement to acquire two senior living communities with a combined 126 living units located in Illinois for approximately $18.6 million, excluding closing costs. We expect to acquire these communities in the fourth quarter of 2016. If these communities are acquired, we expect to lease these communities to Five Star under one of our existing master leases with Five Star. These acquisitions are subject to various conditions; accordingly, we cannot be sure that we will complete these acquisitions and that we will lease them to Five Star, that the acquisitions and lease arrangements will not be delayed or that the terms will not change. See Note 10 to our condensed consolidated financial statements included in Part I, Item 1 of this Quarterly Report on Form 10-Q for further information regarding our leasing arrangements with Five Star.

In October 2016, Five Star agreed to manage four senior living communities we own with approximately 350 living units. Five Star will manage these senior living communities pursuant to management agreements that will be added to an existing or new pooling agreement with terms consistent with the AL Management Agreements that became effective from and after May 2015 as described above. Five Star's assumption of the management of these communities is subject to conditions and we cannot be sure that those conditions will be satisfied.

In March 2016, we sold a land parcel that was previously classified as held for sale for approximately $0.7 million, excluding closing costs. In June 2016, we sold one triple net leased senior living community that was previously classified as held for sale for approximately $9.1 million, excluding closing costs. We recognized a gain on sale of approximately $4.1

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million during the third quarter of 2016 related to the sale of that senior living community. In July 2016, we sold four MOBs (four buildings) that were previously classified as held for sale at September 30, 2016 for approximately $20.2 million, excluding closing costs. In September 2016, we sold one senior living community previously leased to Five Star for approximately $0.2 million, excluding closing costs.

We have one MOB and one former memory care building at a managed senior living community classified as held for sale as of September 30, 2016.

During the three and nine months ended September 30, 2016, we invested $5.3 million and $21.4 million, respectively, of revenue producing capital improvements at certain of our triple net leased senior living communities, and, as a result, annual rent payable to us increased by approximately $0.4 million and $1.7 million, respectively, pursuant to the terms of certain of our leases. We used cash on hand to fund these purchases.

During the three and nine months ended September 30, 2016 and 2015, amounts capitalized for leasing costs and building improvements at our MOBs and capital expenditures at our managed senior living communities were as follows (dollars in thousands): 

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2016		2015		2016		2015
MOB tenant improvements (1)	$	2,652	$	2,568	$	4,784	$	6,373
MOB leasing costs (2)	1,220		1,046		3,042		4,528
MOB building improvements (3)	3,816		2,263		10,552		4,082
Managed senior living communities capital improvements	4,542		3,054		10,790		7,986
Development, redevelopment and other activities (4)	7,362		5,278		24,668		15,146
Total capital expenditures	$	19,592	$	14,209	$	53,836	$	38,115

(1) MOB tenant improvements generally include capital expenditures to improve tenants’ space or amounts paid directly to tenants to improve their space.

(2) MOB leasing costs generally include leasing related costs, such as brokerage commissions and other tenant inducements.

(3) MOB building improvements generally include capital expenditures to replace obsolete building components and capital expenditures that extend the useful life of existing assets.

(4) Development, redevelopment and other activities generally include (i) capital expenditures that are identified at the time of acquisition of a property and incurred within a short period thereafter; and (ii) capital expenditure projects that reposition a property or result in new sources of revenues.

During the three months ended September 30, 2016, commitments made for expenditures in connection with leasing space in our MOBs, such as tenant improvements and leasing costs, were as follows (dollars and square feet in thousands, except per square foot amounts):

	New
	Leases		Renewals		Total
Square feet leased during the quarter	54		139		193
Total leasing costs and concession commitments (1)	$	2,261	$	2,709	$	4,970
Total leasing costs and concession commitments per square foot (1)	$	42.26	$	19.53	$	25.85
Weighted average lease term (years) (2)	7.6		6.8		7.0
Total leasing costs and concession commitments per square foot per year (1)	$	5.56	$	2.89	$	3.72

(1) Includes commitments made for leasing expenditures and concessions, such as tenant improvements, leasing commissions, tenant reimbursements and free rent.

(2) Weighted based on annualized rental income pursuant to existing leases as of September 30, 2016, including straight line rent adjustments and estimated recurring expense reimbursements and excluding lease value amortization.

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We funded or expect to fund the foregoing capital commitments at our MOBs using cash on hand and borrowings under our revolving credit facility. As of September 30, 2016, we have estimated unspent leasing related obligations of approximately $31.1 million.

On February 23, 2016, we paid a regular quarterly distribution of $0.39 per common share, or $92.6 million, to our common shareholders for the quarter ended December 31, 2015. On May 19, 2016, we paid a regular quarterly distribution of $0.39 per common share, or $92.6 million, to our common shareholders for the quarter ended March 31, 2016. On August 18, 2016, we paid a regular quarterly distribution of $0.39 per common share, or $92.6 million, to our common shareholders of record on July 22, 2016 for the quarter ended June 30, 2016. We funded these distributions using cash on hand and borrowings under our revolving credit facility.

On October 11, 2016, we declared a regular quarterly distribution of $0.39 per common share, or $92.6 million, to our common shareholders of record on October 21, 2016 for the quarter ended September 30, 2016. We expect to pay this distribution to shareholders on or about November 17, 2016 using cash on hand and borrowings under our revolving credit facility.

We believe we will have access to various types of financings, including debt or equity offerings, to fund our future acquisitions and to pay our debts and other obligations as they become due. Our ability to complete and the costs of our future debt and equity transactions depend primarily upon market conditions and our credit ratings. We have no control over market conditions. Our credit ratings depend upon evaluations by credit rating agencies of our business practices and plans, including our ability to maintain our earnings, to stagger our debt maturities and to balance our use of debt and equity capital so that our financial performance and leverage ratios afford us flexibility to withstand any reasonably anticipated adverse changes. We intend to conduct our business activities in a manner which will continue to afford us reasonable access to capital for investment and financing activities, but we cannot be sure that we will be able to successfully carry out this intention.

Our strategy related to property acquisitions and dispositions is materially unchanged from that disclosed in our Annual Report. We continue to explore and evaluate for possible acquisition additional properties primarily for income and secondarily for appreciation potential; however, we cannot be sure that we will reach any agreement to acquire such properties, or that if we do reach any such agreement, that we will complete any acquisitions. We expect to periodically identify properties for sale based on future changes in market conditions, changes in property performance, our expectation regarding lease renewals, our plans with regard to particular properties or alternative opportunities we may wish to pursue. Our plans for particular properties and other strategic considerations may cause us to change our acquisition and disposition strategies, and we may do so at any time and without shareholder approval.

Off Balance Sheet Arrangements

As of September 30, 2016, we had no off balance sheet arrangements that have had or that we expect would be reasonably likely to have a material effect on our financial condition, changes in financial condition, revenues or expenses, results of operations, liquidity, capital expenditures or capital resources.

Debt Covenants

Our principal debt obligations at September 30, 2016 were: (1) outstanding borrowings under our $1.0 billion revolving credit facility; (2) six public issuances of senior unsecured notes, including: (a) $400.0 million principal amount at an annual interest rate of 3.25% due 2019, (b) $200.0 million principal amount at an annual interest rate of 6.75% due 2020, (c) $300.0 million principal amount at an annual interest rate of 6.75% due 2021, (d) $250.0 million principal amount at an annual interest rate of 4.75% due 2024, (e) $350.0 million principal amount at an annual interest rate of 5.625% due 2042 and (f) $250.0 million principal amount at an annual interest rate of 6.25% due 2046; (3) our $350.0 million principal amount term loan due 2020; (4) our $200.0 million principal amount term loan due 2022; and (5) $1.2 billion aggregate principal amount of mortgage notes secured by 52 of our properties (54 buildings) with maturity dates between 2017 and 2043. We also have two properties encumbered by capital leases with lease obligations totaling $11.6 million at September 30, 2016; the capital leases expire in 2026. We had $215.0 million outstanding under our revolving credit facility as of September 30, 2016. Our senior unsecured notes are governed by our senior unsecured notes indentures and their supplements. Our revolving credit facility and term loan agreements and our senior unsecured notes indentures and their supplements provide for acceleration of payment of all amounts outstanding upon the occurrence and continuation of certain events of default, such as, in the case of our revolving credit facility and term loan agreements, a change of control of us, as defined, which includes RMR LLC ceasing to act as our business manager and property manager. Our senior unsecured notes indentures and their supplements and our revolving credit facility and term loan agreements also contain a number of covenants which restrict our ability to incur debts, including debts secured by mortgages on our properties, in excess of calculated amounts and require us to maintain various financial ratios, and

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our revolving credit facility and term loan agreements contains covenants which restrict our ability to make distributions in certain circumstances. As of September 30, 2016, we believe we were in compliance with all of the covenants under our senior unsecured notes indentures and their supplements, our revolving credit facility and term loan agreements and our other debt obligations.

Neither our senior unsecured notes indentures and their supplements, nor our revolving credit facility and term loan agreements, contain provisions for acceleration which could be triggered by our debt ratings. However, under our revolving credit facility and term loan agreements, our senior unsecured debt ratings are used to determine the fees and interest rates we pay. Accordingly, if our debt ratings are downgraded by credit rating agencies, our interest expense and related costs under our revolving credit facility and term loan agreements would increase.

Our senior unsecured notes indentures and their supplements contain cross default provisions to any other debts of more than $20.0 million ($50 million or more in the case of our senior unsecured notes indenture and supplement entered into in February 2016). Similarly, our revolving credit facility and term loan agreements have cross default provisions to other indebtedness that is recourse of $25.0 million or more and indebtedness that is non-recourse of $75.0 million or more.

The loan agreements governing the aggregate $620 million secured debt financing we obtained in July 2016 contain customary covenants and provide for acceleration of payment of all amounts due thereunder upon the occurrence and continuation of certain events of default.

Related Person Transactions

We have relationships and historical and continuing transactions with Five Star, RMR LLC and others related to them. For example, Five Star is our former subsidiary, our largest tenant and a manager of certain of our senior living communities and we are currently Five Star’s largest stockholder. Also, we have no employees and the personnel and various services we require to operate our business are provided to us by RMR LLC pursuant to management agreements; RMR Inc. is the managing member of RMR LLC and we own shares of class A common stock of RMR Inc.; and the controlling shareholder of RMR Inc., ABP Trust, is owned by our Managing Trustees and ABP Trust also owns an equity interest in RMR LLC. In addition, we and six other companies to which RMR LLC provides management services own in equal amounts AIC, an insurance company, and we participate in a combined property insurance program arranged and reinsured in part by AIC. For further information about these and other such relationships and related person transactions, please see Note 10 to our condensed consolidated financial statements included in Part I, Item 1 of this Quarterly Report on Form 10-Q, our Annual Report, our definitive Proxy Statement for our 2016 Annual Meeting of Shareholders, our Current Reports on Form 8-K dated June 29, 2016 and October 2, 2016, and our other filings with the Securities and Exchange Commission, or SEC. In addition, please see the section captioned “Risk Factors” of our Annual Report for a description of risks that may arise as a result of these and other related person transactions and relationships. Our filings with the SEC and copies of certain of our agreements with these related parties are publicly available as exhibits to our public filings with the SEC and accessible at the SEC’s website, www.sec.gov. We may engage in additional transactions with related persons, including RMR LLC and companies to which RMR LLC or its affiliates provide management services.

Impact of Government Reimbursement

For the nine months ended September 30, 2016, approximately 97% of our NOI was generated from properties where a majority of the revenues are derived from our tenants’ and residents’ private resources, and the remaining 3% of our NOI was generated from properties where a majority of the revenues are derived from Medicare and Medicaid payments. Nonetheless, we own and our tenants and managers operate facilities in many states that participate in federal and state healthcare payment programs, including the federal Medicare and state Medicaid programs and other federal and state healthcare payment programs. Also, some of our MOB tenants participate in federal Medicare and state Medicaid programs and other government healthcare payment programs.

Because of the current and projected federal budget deficit, other federal spending priorities and challenging state fiscal conditions, there have been numerous recent legislative and regulatory actions or proposed actions with respect to federal Medicare rates, state Medicaid rates and federal payments to states for Medicaid programs. We cannot currently predict the type and magnitude of the potential Medicare and Medicaid policy changes, rate reductions or other changes that may cause these government funded healthcare programs to not increase rates to match our tenants’ and managers’ increasing expenses, but such changes may be adverse and material to their or our operations and to their or our future financial results.

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On July 29, 2016, the Centers for Medicare and Medicaid Services, or CMS, adopted a final rule updating Medicare payments to SNFs for federal fiscal year 2017, which CMS estimates will increase payments to SNFs by an aggregate of 2.4% compared to payments in federal fiscal year 2016. Due to the previous reduction of Medicare payment rates of approximately 11.1% for federal fiscal year 2012, Medicare payment rates are expected to be lower for federal fiscal year 2017 than they were in federal fiscal year 2011. The final rule also includes regulations to implement the SNF quality reporting program beginning in federal fiscal year 2018 and the SNF value-based purchasing program beginning in federal fiscal year 2019.  The SNF quality reporting program will subject SNFs that fail to timely comply with the reporting requirements to a 2.0% reduction in their annual updated Medicare payment rates as required by the Improving Medicare Post-Acute Transformation Act of 2014, or the IMPACT Act.  The SNF value-based purchasing program will provide incentive payments to SNFs for quality and efficiency, as required by the Protecting Access to Medicare Act of 2014.

On September 28, 2016, CMS issued a final rule to update the requirements for long term care facilities that participate in Medicare and Medicaid, including the SNFs our tenants and managers operate. The final rule, which is effective beginning on November 28, 2016, institutes a broad range of new requirements, some of which stem from statutory modifications under the Patient Protection and Affordable Care Act, as amended by the Health Care and Education Reconciliation Act, or collectively the ACA, and the IMPACT Act. The requirements under the final rule largely match those set forth in the proposed rule, which was released by CMS on July 13, 2015. These requirements will increase the cost of operations for long term care facilities that participate in Medicare and Medicaid, including the SNFs our tenants and managers operate. Specifically, CMS now estimates in the final rule that the cost of complying with all of the new requirements per facility would be approximately $62,900 in the first year, and approximately $55,000 each year thereafter. However, we believe new requirements often cost considerably more than CMS estimates.

On October 14, 2016, CMS issued a final rule to implement the Merit-Based Incentive System, or MIPS, and Advanced Alternative Payment Models, or APMs, which together CMS calls the Quality Payment Program.  These reforms were mandated under the Medicare Access and CHIP Reauthorization Act and replace the Sustainable Growth Rate methodology for updates to the Medicare Physician Fee Schedule, or MPFS.  Starting in 2019, providers may be subject to either MIPS payment adjustments or APM incentive payments.  MIPS is a new Medicare program that combines certain parts of existing quality and incentive programs into a single program that addresses quality, resource use, clinical practice activities and meaningful use of electronic health records.  APMs are innovative models approved by CMS for paying healthcare providers for services provided to Medicare beneficiaries which draw on existing programs, such as the bundled payment and shared savings models.  Our tenants’, our managers’ and our Medicare Part B outpatient therapy revenue rates and revenues of some of our MOB tenants are tied to the MPFS and may be affected by these regulatory changes. 

For more information regarding the government healthcare funding and regulation of our business, please see the section captioned “Business-Government Regulation and Reimbursement” in our Annual Report and the section captioned “Impact of Government Reimbursement” in our Quarterly Report on Form 10-Q for the quarters ended March 31, 2016 and June 30, 2016.

Item 3.  Quantitative and Qualitative Disclosures About Market Risk.

We are exposed to risks associated with market changes in interest rates. We manage our exposure to this market risk by monitoring available financing alternatives. Our strategy to manage exposure to changes in interest rates has not materially changed since December 31, 2015. Other than as described below, we do not currently foresee any significant changes in our exposure to fluctuations in interest rates or in how we manage this exposure in the near future.

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Fixed Rate Debt

At September 30, 2016, our outstanding fixed rate debt included the following (dollars in thousands):

			Annual		Annual
	Principal		Interest		Interest			Interest
Debt	Balance (1)		Rate (1)		Expense		Maturity	Payments Due
Senior unsecured notes	$	400,000	3.25	%	$	13,000	2019	Semi-Annually
Senior unsecured notes	350,000		5.63	%	19,705		2042	Quarterly
Senior unsecured notes	300,000		6.75	%	20,250		2021	Semi-Annually
Senior unsecured notes	250,000		4.75	%	11,875		2024	Semi-Annually
Senior unsecured notes	250,000		6.25	%	15,625		2046	Quarterly
Senior unsecured notes	200,000		6.75	%	13,500		2020	Semi-Annually
Mortgages	620,000		3.53	%	21,886		2026	Monthly
Mortgage	280,718		6.71	%	18,836		2019	Monthly
Mortgages	70,490		4.47	%	3,151		2018	Monthly
Mortgages	44,684		3.79	%	1,694		2019	Monthly
Mortgages (2)	42,645		6.54	%	2,789		2017	Monthly
Mortgage	14,434		6.28	%	906		2022	Monthly
Mortgages	12,825		6.31	%	809		2018	Monthly
Mortgages	12,111		6.24	%	756		2018	Monthly
Mortgage	11,643		4.85	%	565		2022	Monthly
Mortgage	10,707		6.15	%	658		2017	Monthly
Mortgage	8,925		5.95	%	531		2038	Monthly
Mortgage	8,754		6.73	%	589		2018	Monthly
Mortgage	6,598		4.69	%	309		2019	Monthly
Mortgage (3)	5,446		5.86	%	319		2017	Monthly
Mortgage	4,449		4.38	%	195		2043	Monthly
Mortgages	3,254		7.49	%	244		2022	Monthly
Mortgage	3,164		6.25	%	198		2033	Monthly
	$	2,910,847			$	148,390

(1) The principal balances and interest rates are the amounts stated in the applicable contracts.  In accordance with GAAP, our carrying values and recorded interest expense may differ from these amounts because of market conditions at the time we assumed these debts. This table does not include obligations under capital leases.

(2) We prepaid these mortgage notes in October 2016.

(3) In October 2016, we gave notice of our intention to prepay, at par plus accrued interest, this mortgage note; we expect to make this prepayment in December 2016.

No principal repayments are due under our unsecured notes until maturity. Our mortgage debts require principal and interest payments through maturity pursuant to amortization schedules. Because these debts require interest to be paid at a fixed rate, changes in market interest rates during the term of these debts will not affect our interest obligations.

If these debts were refinanced at interest rates which are 100 basis points higher or lower than shown above, our annual interest cost would increase or decrease by approximately $29.1 million.

Changes in market interest rates would affect the fair value of our fixed rate debt obligations; increases in market interest rates decrease the fair value of our fixed rate debt, while decreases in market interest rates increase the fair value of our fixed rate debt. Based on the balances outstanding at September 30, 2016, and discounted cash flows analyses through the respective maturity dates, and assuming no other changes in factors that may affect the fair value of our fixed rate debt obligations, a hypothetical immediate 100 basis point change in interest rates would change the fair value of those obligations by approximately $66.0 million.

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Our senior unsecured notes and certain of our mortgages contain provisions that allow us to make repayments earlier than the stated maturity date. In some cases, we are not allowed to make early repayment prior to a cutoff date and we are generally allowed to make prepayments only at a premium equal to a make whole amount, as defined, which is generally designed to preserve a stated yield to the noteholder. In the past, we have repurchased and retired some of our outstanding debts and we may do so again in the future. These prepayment rights and our ability to repurchase and retire outstanding debt may afford us opportunities to mitigate the risk of refinancing our debts at maturity at higher rates by refinancing prior to maturity.

Floating Rate Debt

At September 30, 2016, our floating rate debt obligations consisted of our $1.0 billion revolving credit facility, under which we had $215.0 million outstanding, our $350.0 million term loan and our $200.0 million term loan.  Our revolving credit facility matures in January 2018, and, subject to our payment of an extension fee and our meeting other conditions, we have the option to extend the stated maturity date by one year to January 2019.  No principal repayments are required under our revolving credit facility prior to maturity, and we can borrow, repay and re-borrow funds available, subject to conditions, at any time without penalty. Our $350.0 million term loan matures on January 15, 2020, and our $200.0 million term loan matures on September 28, 2022. Our $350.0 million term loan is prepayable without penalty at any time. Our $200.0 million term loan is prepayable without penalty beginning September 29, 2017.

Borrowings under our revolving credit facility and term loans are in U.S. dollars and interest is required to be paid at LIBOR plus premiums that are subject to adjustment based upon changes to our credit ratings.  Accordingly, we are exposed to interest rate risk for changes in U.S. dollar based short term rates, specifically LIBOR.  In addition, upon renewal or refinancing of our revolving credit facility or our term loans, we are vulnerable to increases in interest rate premiums due to market conditions or our perceived credit characteristics. Generally, a change in interest rates would not affect the value of our floating rate debt but would affect our operating results.

The following table presents the impact a 100 basis point increase in interest rates would have on our annual floating rate interest expense as of September 30, 2016 (dollars in thousands): 

	Impact of Changes in Interest Rates
			Outstanding		Total Interest		Annual Earnings
	Interest Rate (1)		Floating Rate Debt		Expense Per Year		per Share Impact (2)
At September 30, 2016	1.98	%	$	765,000	$	15,147	$	(0.06	)
100 basis point increase	2.98	%	$	765,000	$	22,797	$	(0.10	)

(1) Weighted based on the respective interest rates and outstanding borrowings under our credit facility and term loans as of September 30, 2016.

(2) Based on weighted average number of shares outstanding (diluted) for the three months ended September 30, 2016.

The following table presents the impact a 100 basis point increase in interest rates would have on our annual floating rate interest expense as of September 30, 2016 if we were fully drawn on our revolving credit facility and our term loan remained outstanding (dollars in thousands): 

	Impact of Changes in Interest Rates
			Outstanding		Total Interest		Annual Earnings
	Interest Rate (1)		Floating Rate Debt		Expense Per Year		per Share Impact (2)
At September 30, 2016	1.86	%	$	1,550,000	$	28,830	$	(0.12	)
100 basis point increase	2.86	%	$	1,550,000	$	44,330	$	(0.19	)

(1) Weighted based on the respective interest rates and outstanding borrowings under our credit facility (assuming fully drawn) and term loans as of September 30, 2016.

(2) Based on weighted average number of shares outstanding (diluted) for the three months ended September 30, 2016.

The foregoing tables show the impact of an immediate increase in floating interest rates. If interest rates were to change gradually over time, the impact would be spread over time. Our exposure to fluctuations in floating interest rates will increase or decrease in the future with increases or decreases in the outstanding amount of our borrowings under our revolving credit facility or other floating rate debt.

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Although we have no present plans to do so, we may in the future enter into hedge arrangements from time to time to mitigate our exposure to changes in interest rates.

Item 4.  Controls and Procedures.

As of the end of the period covered by this report, our management carried out an evaluation, under the supervision and with the participation of our Managing Trustees, President and Chief Operating Officer and Chief Financial Officer and Treasurer, of the effectiveness of our disclosure controls and procedures pursuant to Rules 13a-15 and 15d-15 under the Securities Exchange Act of 1934, as amended.  Based upon that evaluation, our Managing Trustees, President and Chief Operating Officer and Chief Financial Officer and Treasurer concluded that our disclosure controls and procedures are effective.

There have been no changes in our internal control over financial reporting during the quarter ended September 30, 2016 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

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WARNING CONCERNING FORWARD LOOKING STATEMENTS

THIS QUARTERLY REPORT ON FORM 10-Q CONTAINS STATEMENTS THAT CONSTITUTE FORWARD LOOKING STATEMENTS WITHIN THE MEANING OF THE PRIVATE SECURITIES LITIGATION REFORM ACT OF 1995 AND OTHER SECURITIES LAWS. ALSO, WHENEVER WE USE WORDS SUCH AS “BELIEVE”, “EXPECT”, “ANTICIPATE”, “INTEND”, “PLAN”, “ESTIMATE”, “WILL”, “MAY” AND NEGATIVES OR DERIVATIVES OF THESE OR SIMILAR EXPRESSIONS, WE ARE MAKING FORWARD LOOKING STATEMENTS. THESE FORWARD LOOKING STATEMENTS ARE BASED UPON OUR PRESENT INTENT, BELIEFS OR EXPECTATIONS, BUT FORWARD LOOKING STATEMENTS ARE NOT GUARANTEED TO OCCUR AND MAY NOT OCCUR. FORWARD LOOKING STATEMENTS IN THIS REPORT RELATE TO VARIOUS ASPECTS OF OUR BUSINESS, INCLUDING: 

• OUR POLICIES AND PLANS REGARDING INVESTMENTS, FINANCINGS AND DISPOSITIONS,

• OUR ABILITY TO RETAIN OUR EXISTING TENANTS, ATTRACT NEW TENANTS AND MAINTAIN OR INCREASE CURRENT RENTAL RATES,

• THE CREDIT QUALITIES OF OUR TENANTS,

• OUR ABILITY TO COMPETE FOR ACQUISITIONS AND TENANCIES EFFECTIVELY,

• OUR ACQUISITIONS AND SALES OF PROPERTIES,

• OUR ABILITY TO PAY DISTRIBUTIONS TO OUR SHAREHOLDERS AND THE AMOUNT OF SUCH DISTRIBUTIONS,

• OUR ABILITY TO RAISE DEBT OR EQUITY CAPITAL,

• THE FUTURE AVAILABILITY OF BORROWINGS UNDER OUR REVOLVING CREDIT FACILITY,

• OUR ABILITY TO PAY INTEREST ON AND PRINCIPAL OF OUR DEBT,

• OUR ABILITY TO APPROPRIATELY BALANCE OUR DEBT AND EQUITY CAPITAL,

• OUR CREDIT RATINGS,

• OUR EXPECTATION THAT WE BENEFIT FROM OUR OWNERSHIP OF RMR INC.,

• OUR EXPECTATION THAT WE BENEFIT FROM OUR OWNERSHIP OF AIC AND OUR PARTICIPATION IN INSURANCE PROGRAMS ARRANGED BY AIC,

• OUR QUALIFICATION FOR TAXATION AS A REIT,

• OUR BELIEF THAT THE AGING U.S. POPULATION WILL INCREASE THE DEMAND FOR EXISTING SENIOR LIVING COMMUNITIES,

• OUR BELIEF THAT FIVE STAR, OUR FORMER SUBSIDIARY, WHICH IS OUR LARGEST TENANT AND WHICH MANAGES CERTAIN OF OUR SENIOR LIVING COMMUNITIES FOR OUR ACCOUNT, HAS ADEQUATE FINANCIAL RESOURCES AND LIQUIDITY AND THE ABILITY TO MEET ITS OBLIGATIONS TO US AND TO MANAGE OUR SENIOR LIVING COMMUNITIES SUCCESSFULLY, AND

• OTHER MATTERS.

OUR ACTUAL RESULTS MAY DIFFER MATERIALLY FROM THOSE CONTAINED IN OR IMPLIED BY OUR FORWARD LOOKING STATEMENTS AS A RESULT OF VARIOUS FACTORS. FACTORS THAT COULD HAVE A MATERIAL ADVERSE EFFECT ON OUR FORWARD LOOKING STATEMENTS AND UPON OUR BUSINESS, RESULTS OF OPERATIONS, FINANCIAL CONDITION, FFO, NORMALIZED FFO, NOI, CASH FLOWS, LIQUIDITY AND PROSPECTS INCLUDE, BUT ARE NOT LIMITED TO:

• THE IMPACT OF CHANGES IN THE ECONOMY AND THE CAPITAL MARKETS ON US AND OUR TENANTS AND MANAGERS,

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• THE IMPACT OF THE ACA AND OTHER EXISTING OR PROPOSED LEGISLATION OR REGULATIONS ON US, ON OUR TENANTS AND MANAGERS AND ON THEIR ABILITY TO PAY OUR RENTS AND RETURNS,

• ACTUAL AND POTENTIAL CONFLICTS OF INTEREST WITH OUR RELATED PARTIES, INCLUDING OUR MANAGING TRUSTEES, FIVE STAR, RMR LLC, RMR INC., AIC, D&R YONKERS LLC AND OTHERS AFFILIATED WITH THEM,

• COMPLIANCE WITH, AND CHANGES TO, FEDERAL, STATE AND LOCAL LAWS AND REGULATIONS, ACCOUNTING RULES, TAX LAWS AND SIMILAR MATTERS,

• LIMITATIONS IMPOSED ON OUR BUSINESS AND OUR ABILITY TO SATISFY COMPLEX RULES IN ORDER FOR US TO QUALIFY FOR TAXATION AS A REIT FOR U.S. FEDERAL INCOME TAX PURPOSES,

• COMPETITION WITHIN THE HEALTHCARE AND REAL ESTATE INDUSTRIES, AND

• ACTS OF TERRORISM, OUTBREAKS OF SO CALLED PANDEMICS OR OTHER MANMADE OR NATURAL DISASTERS BEYOND OUR CONTROL.

FOR EXAMPLE: 

• FIVE STAR IS OUR LARGEST TENANT AND MANAGES CERTAIN OF OUR SENIOR LIVING COMMUNITIES FOR OUR ACCOUNT AND IT MAY EXPERIENCE FINANCIAL DIFFICULTIES AS A RESULT OF A NUMBER OF FACTORS, INCLUDING, BUT NOT LIMITED TO: 

• CHANGES IN MEDICARE OR MEDICAID POLICIES, INCLUDING THOSE THAT MAY RESULT FROM THE ACA AND OTHER EXISTING OR PROPOSED LEGISLATION OR REGULATIONS, WHICH COULD RESULT IN REDUCED MEDICARE OR MEDICAID RATES OR A FAILURE OF SUCH RATES TO COVER FIVE STAR’S COSTS,

• CHANGES IN REGULATIONS AFFECTING FIVE STAR’S OPERATIONS,

• CHANGES IN THE ECONOMY OR GOVERNMENTAL POLICIES WHICH REDUCE THE DEMAND FOR THE SERVICES FIVE STAR OFFERS,

• INCREASES IN INSURANCE AND TORT LIABILITY COSTS,

• INEFFECTIVE INTEGRATION OF NEWLY ACQUIRED LEASED OR MANAGED SENIOR LIVING COMMUNITIES, AND

• INSUFFICIENT ACCESS TO CAPITAL AND FINANCING.

• IF FIVE STAR’S OPERATIONS REMAIN UNPROFITABLE, FIVE STAR MAY BECOME UNABLE TO PAY OUR RENTS AND WE MAY NOT RECEIVE OUR EXPECTED RETURN ON OUR INVESTED CAPITAL OR ADDITIONAL AMOUNTS FROM OUR SENIOR LIVING COMMUNITIES THAT ARE MANAGED BY FIVE STAR,

• OUR OTHER TENANTS MAY EXPERIENCE LOSSES AND BECOME UNABLE TO PAY OUR RENTS,

• SOME OF OUR TENANTS MAY NOT RENEW EXPIRING LEASES, AND WE MAY BE UNABLE TO LOCATE NEW TENANTS TO MAINTAIN OR INCREASE THE HISTORICAL OCCUPANCY RATES OF, OR RENTS FROM, OUR PROPERTIES,

• OUR ABILITY TO MAKE FUTURE DISTRIBUTIONS TO OUR SHAREHOLDERS AND TO MAKE PAYMENTS OF PRINCIPAL AND INTEREST ON OUR INDEBTEDNESS DEPENDS UPON A NUMBER OF FACTORS, INCLUDING OUR FUTURE EARNINGS, THE CAPITAL COSTS WE INCUR TO LEASE AND OPERATE OUR PROPERTIES AND OUR WORKING CAPITAL REQUIREMENTS. WE MAY BE UNABLE TO PAY OUR DEBT OBLIGATIONS OR TO MAINTAIN OUR CURRENT RATE OF DISTRIBUTIONS ON OUR COMMON SHARES AND FUTURE DISTRIBUTIONS MAY BE REDUCED OR ELIMINATED,

• OUR ABILITY TO GROW OUR BUSINESS AND INCREASE OUR DISTRIBUTIONS DEPENDS IN LARGE PART UPON OUR ABILITY TO BUY PROPERTIES AND ARRANGE FOR THEIR PROFITABLE OPERATION

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OR LEASE THEM FOR RENTS, LESS PROPERTY OPERATING EXPENSES, THAT EXCEED OUR CAPITAL COSTS. WE MAY BE UNABLE TO IDENTIFY PROPERTIES THAT WE WANT TO ACQUIRE OR TO NEGOTIATE ACCEPTABLE PURCHASE PRICES, ACQUISITION FINANCING, MANAGEMENT CONTRACTS OR LEASE TERMS FOR NEW PROPERTIES,

• RENTS THAT WE CAN CHARGE AT OUR PROPERTIES MAY DECLINE BECAUSE OF CHANGING MARKET CONDITIONS OR OTHERWISE,

• CONTINGENCIES IN OUR ACQUISITION AND SALE AGREEMENTS MAY NOT BE SATISFIED AND ANY PENDING ACQUISITIONS AND/OR SALES AND ANY RELATED LEASES OR MANAGEMENT AGREEMENTS MAY NOT OCCUR, MAY BE DELAYED OR THE TERMS OF SUCH TRANSACTIONS MAY CHANGE,

• WE MAY ENTER INTO ADDITIONAL LEASE OR MANAGEMENT ARRANGEMENTS WITH FIVE STAR FOR ADDITIONAL SENIOR LIVING COMMUNITIES THAT WE OWN OR MAY ACQUIRE IN THE FUTURE OR OTHER TRANSACTIONS WITH FIVE STAR. HOWEVER, WE CANNOT BE SURE THAT WE AND FIVE STAR WILL ENTER INTO ANY ADDITIONAL LEASES, MANAGEMENT ARRANGEMENTS OR OTHER TRANSACTIONS,

• CONTINUED AVAILABILITY OF BORROWINGS UNDER OUR REVOLVING CREDIT FACILITY IS SUBJECT TO OUR SATISFYING CERTAIN FINANCIAL COVENANTS AND OTHER CUSTOMARY CREDIT FACILITY CONDITIONS THAT WE MAY BE UNABLE TO SATISFY,

• ACTUAL COSTS UNDER OUR REVOLVING CREDIT FACILITY OR OTHER FLOATING RATE CREDIT FACILITIES WILL BE HIGHER THAN LIBOR PLUS A PREMIUM BECAUSE OF OTHER FEES AND EXPENSES ASSOCIATED WITH SUCH FACILITIES,

• THE MAXIMUM BORROWING AVAILABILITY UNDER OUR REVOLVING CREDIT FACILITY AND TERM LOANS MAY BE INCREASED TO UP TO $2.6 BILLION ON A COMBINED BASIS IN CERTAIN CIRCUMSTANCES. HOWEVER, INCREASING THE MAXIMUM BORROWING AVAILABILITY UNDER OUR REVOLVING CREDIT FACILITY AND TERM LOANS IS SUBJECT TO OUR OBTAINING ADDITIONAL COMMITMENTS FROM LENDERS, WHICH MAY NOT OCCUR,

• WE HAVE THE OPTION TO EXTEND THE MATURITY DATE OF OUR REVOLVING CREDIT FACILITY UPON PAYMENT OF A FEE AND MEETING OTHER CONDITIONS.  HOWEVER, THE APPLICABLE CONDITIONS MAY NOT BE MET,

• THE PREMIUMS USED TO DETERMINE THE INTEREST RATE PAYABLE ON OUR REVOLVING CREDIT FACILITY AND TERM LOANS AND THE FACILITY FEE PAYABLE ON OUR REVOLVING CREDIT FACILITY ARE BASED ON OUR CREDIT RATINGS.  FUTURE CHANGES IN OUR CREDIT RATINGS MAY CAUSE THE INTEREST AND FEES WE PAY TO INCREASE,

• WE MAY BE UNABLE TO REPAY OUR DEBT OBLIGATIONS WHEN THEY BECOME DUE,

• FOR THE THREE MONTHS ENDED SEPTEMBER 30, 2016, APPROXIMATELY 97% OF OUR NOI WAS GENERATED FROM PROPERTIES WHERE A MAJORITY OF THE REVENUES ARE DERIVED FROM OUR TENANTS’ AND RESIDENTS’ PRIVATE RESOURCES.  THIS MAY IMPLY THAT WE WILL MAINTAIN OR INCREASE THE PERCENTAGE OF OUR NOI GENERATED FROM PRIVATE RESOURCES AT OUR SENIOR LIVING COMMUNITIES.  HOWEVER, OUR RESIDENTS AND PATIENTS MAY BECOME UNABLE TO FUND OUR CHARGES WITH PRIVATE RESOURCES IN THE FUTURE AND WE MAY BE REQUIRED OR MAY ELECT FOR BUSINESS REASONS TO ACCEPT OR PURSUE REVENUES FROM GOVERNMENT SOURCES, WHICH COULD RESULT IN AN INCREASED PART OF OUR NOI AND REVENUE BEING GENERATED FROM GOVERNMENT PAYMENTS AND OUR BECOMING MORE DEPENDENT ON GOVERNMENT PAYMENTS,

• IN RECENT YEARS ECONOMIC INDICATORS REFLECT AN IMPROVING HOUSING MARKET AND MANY OF THE SERVICES OUR SENIOR LIVING COMMUNITY TENANTS AND MANAGERS PROVIDE ARE NEEDS DRIVEN.  THESE FACTORS MAY IMPLY THAT ECONOMIC CONDITIONS WILL IMPROVE AND THAT THOSE TENANTS’ AND MANAGERS’ AND OUR REVENUES AND PROFITABILITY WILL IMPROVE.  HOWEVER, WE CANNOT BE SURE THAT GENERAL ECONOMIC CONDITIONS WILL IMPROVE, THAT

52

THERE EXISTS ANY PENT UP DEMAND FOR THOSE SERVICES OR THAT, EVEN IF THERE IS SUCH DEMAND, THAT OUR TENANTS AND MANAGERS WOULD BE SUCCESSFUL IN ATTRACTING SUCH DEMAND, OR THAT OUR TENANTS’ OR MANAGERS' OR OUR REVENUES AND PROFITS WILL IMPROVE. FURTHER, SOME ECONOMIC INDICATORS MAY INDICATE DECLINING ECONOMIC ACTIVITY, WHICH COULD BE HARMFUL TO OUR TENANTS’, MANAGERS’ AND OUR BUSINESSES AND CAUSE THEM OR US TO EXPERIENCE CONTINUING LOSSES,

• WE MAY NOT BE ABLE TO SELL OUR ASSETS CLASSIFIED AS HELD FOR SALE ON TERMS ACCEPTABLE TO US OR OTHERWISE,

• WE BELIEVE THAT OUR RELATIONSHIPS WITH OUR RELATED PARTIES, INCLUDING FIVE STAR, RMR LLC, RMR INC., ABP TRUST, AIC, D&R YONKERS LLC AND OTHERS AFFILIATED WITH THEM MAY BENEFIT US AND PROVIDE US WITH COMPETITIVE ADVANTAGES IN OPERATING AND GROWING OUR BUSINESS.  HOWEVER, THE ADVANTAGES WE BELIEVE WE MAY REALIZE FROM THESE RELATIONSHIPS MAY NOT MATERIALIZE,

• THIS QUARTERLY REPORT STATES THAT THE TERMS OF THE TRANSACTION DOCUMENTS WITH FIVE STAR AND OF THE CONSENT AGREEMENT WITH ABP TRUST AND OTHERS WERE NEGOTIATED AND APPROVED BY SPECIAL COMMITTEES OF OUR BOARD OF TRUSTEES COMPOSED SOLELY OF OUR INDEPENDENT TRUSTEES.  AN IMPLICATION OF THESE STATEMENTS MAY BE THAT THE TERMS OF THE TRANSACTION DOCUMENTS AND OF THE CONSENT AGREEMENT ARE EQUIVALENT TO THOSE THAT COULD BE OBTAINED IN “ARM’S LENGTH” NEGOTIATIONS BETWEEN UNRELATED PARTIES.  WE AND FIVE STAR ARE RELATED BECAUSE, AMONG OTHER THINGS, FIVE STAR IS OUR LARGEST TENANT AND WE ARE CURRENTLY FIVE STAR’S LARGEST STOCKHOLDER. WE AND ABP TRUST ARE RELATED BECAUSE, AMONG OTHER THINGS, ABP TRUST IS THE INDIRECT CONTROLLING SHAREHOLDER OF OUR MANAGER, RMR LLC, AND IS OWNED BY OUR MANAGING TRUSTEES.  ACCORDINGLY, THE TERMS OF THE TRANSACTION DOCUMENTS AND THE CONSENT AGREEMENT DESCRIBED HEREIN MAY NOT BE EQUIVALENT TO THOSE THAT COULD BE OBTAINED IN “ARM’S LENGTH” NEGOTIATIONS BETWEEN UNRELATED PARTIES.

• OUR SENIOR LIVING COMMUNITIES ARE SUBJECT TO EXTENSIVE GOVERNMENTAL REGULATION, LICENSURE AND OVERSIGHT. WE SOMETIMES EXPERIENCE DEFICIENCIES IN THE OPERATION OF OUR SENIOR LIVING COMMUNITIES AND SOME OF OUR COMMUNITIES MAY BE PROHIBITED FROM ADMITTING NEW RESIDENTS OR OUR LICENSE TO CONTINUE OPERATIONS AT A COMMUNITY MAY BE REVOKED. ALSO, OPERATING DEFICIENCIES OR A LICENSE REVOCATION AT ONE OR MORE OF OUR SENIOR LIVING COMMUNITIES MAY HAVE AN ADVERSE IMPACT ON OUR ABILITY TO OBTAIN LICENSES FOR, OR ATTRACT RESIDENTS TO, OUR OTHER COMMUNITIES, AND

• THE BUSINESS MANAGEMENT AND PROPERTY MANAGEMENT AGREEMENTS BETWEEN US AND RMR LLC HAVE CONTINUING 20 YEAR TERMS. HOWEVER, THOSE AGREEMENTS INCLUDE TERMS WHICH PERMIT EARLY TERMINATION IN CERTAIN CIRCUMSTANCES.  ACCORDINGLY, WE CANNOT BE SURE THAT THESE AGREEMENTS WILL REMAIN IN EFFECT FOR CONTINUING 20 YEAR TERMS OR FOR SHORTER TERMS.

CURRENTLY UNEXPECTED RESULTS COULD OCCUR DUE TO MANY DIFFERENT CIRCUMSTANCES, SOME OF WHICH ARE BEYOND OUR CONTROL, SUCH AS NEW LEGISLATION OR REGULATIONS AFFECTING OUR BUSINESS OR THE BUSINESSES OF OUR TENANTS OR MANAGERS, CHANGES IN OUR TENANTS’ OR MANAGERS’ REVENUES OR COSTS, CHANGES IN OUR TENANTS’ OR MANAGERS’ FINANCIAL CONDITIONS, DEFICIENCIES IN OPERATIONS BY THE TENANTS OR MANAGERS OF OUR SENIOR LIVING COMMUNITIES, CHANGED MEDICARE AND MEDICAID RATES, ACTS OF TERRORISM, NATURAL DISASTERS OR CHANGES IN CAPITAL MARKETS OR THE ECONOMY GENERALLY.

THE INFORMATION CONTAINED ELSEWHERE IN THIS QUARTERLY REPORT ON FORM 10-Q AND IN OUR ANNUAL REPORT OR IN OUR OTHER FILINGS WITH THE SEC INCLUDING UNDER THE CAPTION “RISK FACTORS”, OR INCORPORATED HEREIN OR THEREIN, IDENTIFIES OTHER IMPORTANT FACTORS THAT COULD CAUSE DIFFERENCES FROM OUR FORWARD LOOKING STATEMENTS. OUR FILINGS WITH THE SEC ARE AVAILABLE ON THE SEC’S WEBSITE AT WWW.SEC.GOV.

YOU SHOULD NOT PLACE UNDUE RELIANCE UPON OUR FORWARD LOOKING STATEMENTS.

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EXCEPT AS REQUIRED BY LAW, WE DO NOT INTEND TO UPDATE OR CHANGE ANY FORWARD LOOKING STATEMENTS AS A RESULT OF NEW INFORMATION, FUTURE EVENTS OR OTHERWISE.

STATEMENT CONCERNING LIMITED LIABILITY

THE AMENDED AND RESTATED DECLARATION OF TRUST ESTABLISHING SENIOR HOUSING PROPERTIES TRUST, DATED SEPTEMBER 20, 1999, AS AMENDED AND SUPPLEMENTED, AS FILED WITH THE STATE DEPARTMENT OF ASSESSMENTS AND TAXATION OF MARYLAND, PROVIDES THAT NO TRUSTEE, OFFICER, SHAREHOLDER, EMPLOYEE OR AGENT OF SENIOR HOUSING PROPERTIES TRUST SHALL BE HELD TO ANY PERSONAL LIABILITY, JOINTLY OR SEVERALLY, FOR ANY OBLIGATION OF, OR CLAIM AGAINST, SENIOR HOUSING PROPERTIES TRUST. ALL PERSONS DEALING WITH SENIOR HOUSING PROPERTIES TRUST IN ANY WAY SHALL LOOK ONLY TO THE ASSETS OF SENIOR HOUSING PROPERTIES TRUST FOR THE PAYMENT OF ANY SUM OR THE PERFORMANCE OF ANY OBLIGATION.

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PART II.  Other Information

Item 1A. Risk Factors

There have been no material changes to risk factors from those we previously disclosed in our Annual Report and in our Quarterly Report on Form 10-Q for the quarter ended June 30, 2016.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

Issuer purchases of equity securities.  The following table provides information about our purchases of our equity securities during the quarter ended September 30, 2016:

					Maximum
				Total Number of	Approximate Dollar
				Shares Purchased	Value of Shares that
				as Part of Publicly	May Yet Be Purchased
Calendar Month	Number of Shares Purchased (1)	Average Price Paid per Share		Announced Plans or Programs	Under the Plans or Programs
September 2016	17,667		$23.53	—	$	—
Total	17,667		$23.53	—	$	—

(1)    During September 2016, all common share purchases were made to satisfy certain of RMR LLC employees’ tax withholding and payment obligations in connection with the vesting of awards of our common shares.  We repurchased these shares at their fair market value based upon the trading price of our common shares on the repurchase date.

Item 6. Exhibits

Exhibit Number	Description
3.1	Composite Copy of Articles of Amendment and Restatement, dated September 20, 1999, as amended to date. (Incorporated by reference to the Company’s Annual Report on Form 10-K for the year ended December 31, 2014.)
3.2	Articles Supplementary, dated May 11, 2000. (Incorporated by reference to the Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2000, File No. 001-15319.)
3.3	Articles Supplementary, dated April 17, 2014. (Incorporated by reference to the Company’s Current Report on Form 8-K dated April 17, 2014.)
3.4	Amended and Restated Bylaws of the Company, adopted September 7, 2016. (Incorporated by reference to the Company’s Current Report on Form 8-K dated September 7, 2016.)
4.1	Form of Common Share Certificate. (Incorporated by reference to the Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2014.)
4.2	Indenture, dated as of December 20, 2001, between the Company and State Street Bank and Trust Company. (Incorporated by reference to the Company’s Registration Statement on Form S-3, File No. 333-76588.)
4.3	Supplemental Indenture No. 4, dated as of April 9, 2010, between the Company and U.S. Bank National Association, related to 6.75% Senior Notes due 2020, including form thereof. (Incorporated by reference to the Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2010, File No. 001-15319.)
4.4	Supplemental Indenture No. 6, dated as of December 8, 2011, between the Company and U.S. Bank National Association, related to 6.75% Senior Notes due 2021, including form thereof. (Incorporated by reference to the Company’s Annual Report on Form 10-K for the year ended December 31, 2011.)
4.5	Supplemental Indenture No. 7, dated as of July 20, 2012, between the Company and U.S. Bank National Association, related to 5.625% Senior Notes due 2042, including form thereof (Incorporated by reference to the Company’s Registration Statement on Form 8-A dated July 20, 2012.)
4.6	Supplemental Indenture No. 8, dated as of April 28, 2014, between the Company and U.S. Bank National Association, related to 3.25% Senior Notes due 2019, including form thereof. (Incorporated by reference to the Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2014.)
4.7	Supplemental Indenture No. 9, dated as of April 28, 2014, between the Company and U.S. Bank National Association, related to 4.75% Senior Notes due 2024, including form thereof. (Incorporated by reference to the Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2014.)

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4.8	Indenture, dated as of February 18, 2016, between the Company and U.S. Bank National Association.  (Incorporated by reference to the Company’s Current Report on Form 8-K dated February 18, 2016.)
4.9	First Supplemental Indenture, dated as of February 18, 2016, between the Company and U.S. Bank National Association, related to 6.25% Senior Notes due 2046, including form thereof. (Incorporated by reference to the Company’s Current Report on Form 8-K dated February 18, 2016.)
4.10	Registration Rights and Lock-Up Agreement, dated as of June 5, 2015, among the Company, ABP Trust (f/k/a Reit Management & Research Trust), Barry M. Portnoy and Adam D. Portnoy. (Incorporated by reference to the Company’s Current Report on Form 8-K dated June 5, 2015.)
10.1	Form of Share Award Agreement. (Filed herewith.)
10.2	Partial Termination of and Ninth Amendment to Amended and Restated Master Lease Agreement (Lease No. 2), dated as of September 29, 2016, among certain subsidiaries of the Company, as landlord, and certain subsidiaries of Five Star Quality Care, Inc., as tenant. (Filed herewith.)
12.1	Computation of Ratio of Earnings to Fixed Charges. (Filed herewith.)
31.1	Rule 13a-14(a) Certification. (Filed herewith.)
31.2	Rule 13a-14(a) Certification. (Filed herewith.)
31.3	Rule 13a-14(a) Certification. (Filed herewith.)
31.4	Rule 13a-14(a) Certification. (Filed herewith.)
32.1	Section 1350 Certification. (Furnished herewith.)
99.1	Consent Agreement, dated October 2, 2016, among the Company, ABP Trust, ABP Acquisition LLC, Barry M. Portnoy and Adam D. Portnoy. (Incorporated by reference to the Company’s Current Report on Form 8-K dated October 2, 2016.)
99.2	Letter Agreement dated October 28, 2016 between the Company and Five Star Quality Care, Inc. (Filed herewith.)
101.1	The following materials from the Company’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2016 formatted in XBRL (eXtensible Business Reporting Language): (i) the Condensed Consolidated Balance Sheets, (ii) the Condensed Consolidated Statements of Comprehensive Income, (iii) the Condensed Consolidated Statements of Cash Flows and (iv) related notes to these financial statements, tagged as blocks of text and in detail. (Filed herewith.)

56

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

	SENIOR HOUSING PROPERTIES TRUST
	By:	/s/ David J. Hegarty
		David J. Hegarty
		President and Chief Operating Officer
Dated: November 4, 2016
	By:	/s/ Richard W. Siedel, Jr.
		Richard W. Siedel, Jr.
		Chief Financial Officer and Treasurer
		(principal financial and accounting officer)
Dated: November 4, 2016

57

EX-10.1

Exhibit 10.1

SENIOR HOUSING PROPERTIES TRUST

Share Award Agreement

This Share Award Agreement (this “Agreement”) is made as of «DATE», 2016, between «NAME» (the “Recipient”) and Senior Housing Properties Trust (the “Company”).

In consideration of the mutual promises and covenants contained in this Agreement, and for other valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto agree as follows:

1.    Grant of Shares. Subject to the terms and conditions hereinafter set forth and the terms and conditions of the Senior Housing Properties Trust 2012 Equity Compensation Plan, as it may be amended from time to time (the “Plan”), the Company hereby grants to the Recipient, effective as of the date of this Agreement, «NUMBER» of its common shares of beneficial interest, par value $.01 per share (the “Common Shares”). The shares so granted are hereinafter referred to as the “Shares,” which term shall also include any shares of the Company issued to the Recipient by virtue of his or her ownership of the Shares, by share dividend, share split or combination, recapitalization or otherwise.

2.    Vesting; Repurchase of Shares.

(a)    Subject to Sections 2(b) and 2(c) hereof, the Shares shall vest one-fifth of the total number of Shares as of the date hereof and as to a further one-fifth of such total number of Shares on each anniversary of the date hereof for the next four calendar years. Any Shares not vested as of any date are herein referred to as “Unvested Shares.”

(b)    Subject to Section 2(c) hereof, at the option of the Company, in the event the Recipient ceases to render significant services, whether as an employee or otherwise, to (i) the Company, (ii) the entity which is the manager or shared services provider to the Company or an entity controlled by, under common control with or controlling such entity (collectively, the “Manager”), or (iii) an affiliate of the Company (which shall be deemed for such purpose to include any other entity to which the Manager is the manager or shared services provider), all or any portion of the Unvested Shares shall be forfeited by the Recipient as of the date the Recipient ceases to render all such services. The Company may exercise such option by delivering or mailing to the Recipient (or his or her estate), at any time after the Recipient has ceased to render such services, a written notice of exercise of such option. Such notice shall specify the number of Unvested Shares to be forfeited.

(c)    Notwithstanding anything in this Agreement to the contrary, immediately upon the occurrence of an Acceleration Event (as defined below), all of the Unvested Shares shall vest and any forfeiture or other rights of the Company described in Section 2(b) shall lapse in their entirety, and such vesting and lapse of forfeiture or other Company rights shall also immediately apply to each other Common Share previously granted to the Recipient which then remains subject to comparable restrictions and rights. For

purposes of this Section 2(c), an Acceleration Event shall be deemed to occur immediately upon the occurrence of any of the following events: a Change in Control, a Termination Event (as each such term is defined in Exhibit A hereto) or the death of the Recipient.

3.    Legends. Vested and Unvested Shares granted under this Agreement may bear or contain, as applicable, such legends and notations as may be required by the Plan or the Company’s declaration of trust, any applicable supplement thereto or bylaws, each as in effect from time to time, or as the Company may otherwise determine appropriate.

Promptly following the request of the Recipient with respect to any Shares (or any other Common Shares previously granted to the Recipient), the Company shall take, at its sole cost and expense, all such actions as may be required to permit the Recipient to sell such shares including, as applicable and without limitation, providing to the Company’s transfer agent certificates of officers of the Company, and opinions of counsel and/or filing an appropriate registration statement, and taking all such other actions as may be required to remove the legends set forth above with respect to transfer and vesting restrictions from the certificates evidencing such shares and, if applicable, from the share books and records of the Company. The Company shall reimburse the Recipient, promptly upon the receipt of a request for payment, for all expenses (including legal expenses) reasonably incurred by the Recipient in connection with the enforcement of the Recipient’s rights under this paragraph.

4.    Tax Withholding. To the extent required by law, the Company or the Manager shall withhold or cause to be withheld income and other taxes incurred by the Recipient by reason of a grant of Shares, and the Recipient agrees that he or she shall, upon the request of the Company or the Manager, pay to the Company or to the Manager an amount sufficient to satisfy his or her tax withholding obligations from time to time (including as Shares become vested).

5.    Miscellaneous.

(a)    Amendments. Neither this Agreement nor any provision hereof may be changed or modified except by an agreement in writing executed by the Recipient and the Company; provided, however, that any change or modification that does not adversely affect the rights hereunder of the Recipient, as they may exist immediately prior to the effective date of such change or modification, may be adopted by the Company without an agreement in writing executed by the Recipient, and the Company shall give the Recipient written notice of such change or modification reasonably promptly following the adoption of such change or modification.

(b)    Binding Effect of the Agreement. This Agreement shall inure to the benefit of, and be binding upon , the Company, the Recipient and their respective estates, heirs, executors, transferees, successors, assigns and legal representatives.

(c)    Provisions Separable. In the event that any of the terms of this Agreement shall be or become or is declared to be illegal or unenforceable by any court or other authority of competent jurisdiction, such terms shall be null and void and shall be deemed

deleted from this Agreement, and all the remaining terms of this Agreement shall remain in full force and effect.

(d)    Notices. Any notice in connection with this Agreement shall be deemed to have been properly delivered if it is in writing and is delivered by hand or by facsimile or sent by registered certified mail, postage prepaid, to the party addressed as follows, unless another address has been substituted by notice so given:

To the Recipient: To the Recipient’s address as set forth on the signature page hereof.

To the Company: Senior Housing Properties Trust

Two Newton Place

255 Washington Street, Suite 300

Newton, MA 02458

Attn: Secretary

(e)    Construction. The headings and subheadings of this Agreement have been inserted for convenience only, and shall not affect the construction of the provisions hereof. All references to sections of this Agreement shall be deemed to refer as well to all subsections which form a part of such section.

(f)    Employment Agreement. This Agreement shall not be construed as an agreement by the Company, the Manager or any affiliate of the Company or the Manager to employ the Recipient, nor is the Company, the Manager or any affiliate of the Company or the Manager obligated to continue employing the Recipient by reason of this Agreement or the grant of the Shares to the Recipient hereunder.

(g)    Applicable Law. This Agreement shall be construed and enforced in accordance with the laws of the State of Maryland, without giving effect to the principles of conflicts of law of such state.

(h)    Binding Arbitration. Any disputes regarding this Agreement, the granting or vesting of any shares of the Company and/or any related matters shall be settled by binding arbitration in accordance with any Mutual Agreement to Resolve Disputes and Arbitrate Claims between the Recipient and the Manager. In the absence of such an agreement, any such claims or disputes shall be resolved through binding arbitration before one arbitrator conducted under the rules of JAMS in Boston, Massachusetts.

IN WITNESS WHEREOF, the parties hereto have executed this Agreement, or caused this Agreement to be executed under seal, as of the date first above written.

SENIOR HOUSING PROPERTIES TRUST

By:________________________________

Title: Chief Financial Officer and Treasurer

RECIPIENT:

__________________________________________

«NAME»

«ADDRESS»

«CITY», «ST» «ZIP»

Exhibit A

A “Change in Control” shall be deemed to have occurred if any of the events set forth in any one of the following paragraphs shall have occurred:

(a)    any Person is or becomes the Beneficial Owner, directly or indirectly, of securities of the Company representing 50% or more of either the then outstanding common shares of beneficial interest of the Company or the combined voting power of the Company’s then outstanding securities, excluding any Person who becomes such a Beneficial Owner in connection with a transaction described in paragraph (c)(i) below;

(b)    the following individuals cease for any reason to constitute a majority of the number of Trustees then serving: individuals who, on the date of the Agreement, constitute the Board and any new Trustee (other than a Trustee whose initial assumption of office is in connection with an actual or threatened election contest, including but not limited to a consent solicitation, relating to the election of Trustees) whose appointment or election by the Board or nomination for election by the Company’s shareholders was approved or recommended by a vote of at least two-thirds (2/3) of the Trustees then in office who either were Trustees on the date of the Agreement or whose appointment, election or nomination for election was previously so approved or recommended;

(c)    there is consummated a merger or consolidation of the Company or any direct or indirect subsidiary of the Company with any other entity, other than (i) a merger or consolidation which would result in the voting securities of the Company outstanding immediately prior to such merger or consolidation continuing to represent (either by remaining outstanding or by being converted into voting securities of the surviving entity or any parent thereof) at least 50% of the combined voting power of the securities of the Company or such surviving entity or any parent thereof outstanding immediately after such merger or consolidation, or (ii) a merger or consolidation effected to implement a recapitalization of the Company (or similar transaction) in which no Person is or becomes the Beneficial Owner, directly or indirectly, of securities of the Company (not including in the securities Beneficially Owned by such Person any securities acquired directly from the Company or its Affiliates) representing 50% or more of the combined voting power of the Company’s then outstanding securities; or

(d)    the shareholders of the Company approve a plan of complete liquidation or dissolution of the Company or there is consummated an agreement for the sale or disposition by the Company of all or substantially all of the Company’s assets, other than a sale or disposition by the Company of all or substantially all of the Company’s assets to an entity, at least 50% of the combined voting power of the voting securities of which are owned by shareholders of the Company in substantially the same proportions as their ownership of the Company immediately prior to such sale.

A “Termination Event” shall occur if The RMR Group LLC (or any entity controlled by, under common control with or controlling The RMR Group LLC) ceases to be the manager or shared services provider to the Company.

For purposes of the definitions set forth on this Exhibit A, the following definitions shall apply, with capitalized terms used but not defined in this Exhibit A having the meaning set forth in the Plan:

“Affiliate” shall have the meaning set forth in Rule 12b-2 promulgated under Section 12 of the Exchange Act.

“Agreement” shall mean the Share Award Agreement to which this Exhibit A is attached.

“Beneficial Owner” shall have the meaning set forth in Rule 13d-3 under the Exchange Act.

“Exchange Act” shall mean the Securities Exchange Act of 1934, as amended.

“Person” shall have the meaning given in Section 3(a)(9) of the Exchange Act, as modified and used in Sections 13(d) and 14(d) thereof, except that such term shall not include (i) the Company or any of its subsidiaries, (ii) a trustee or other fiduciary holding securities under an employee benefit plan of the Company or any of its Affiliates, (iii) an underwriter temporarily holding securities pursuant to an offering of such securities and (iv) a corporation owned, directly or indirectly, by the shareholders of the Company in substantially the same proportions as their ownership of shares of the Company.

“Trustee” is a member of the Board of Trustees of the Company.

EX-10.2

Exhibit 10.2

PARTIAL TERMINATION OF AND NINTH AMENDMENT TO
AMENDED AND RESTATED MASTER LEASE AGREEMENT
(LEASE NO. 2)

THIS PARTIAL TERMINATION OF AND NINTH AMENDMENT TO AMENDED AND RESTATED MASTER LEASE AGREEMENT (LEASE NO. 2) (this "Amendment") is made and entered into as of September 29, 2016, by and among each of the parties identified on the signature pages hereof as a landlord (collectively, "Landlord") and each of the parties identified on the signature pages hereof as a tenant (jointly and severally, "Tenant").

WITNESSETH:

WHEREAS, pursuant to the terms of that certain Amended and Restated Master Lease Agreement (Lease No. 2), dated as of August 4, 2009, as amended by that certain Partial Termination of and First Amendment to Amended and Restated Master Lease Agreement (Lease No. 2), dated as of November 1, 2009, that certain Partial Termination of and Second Amendment to Amended and Restated Master Lease Agreement (Lease No. 2), dated as of August 1, 2010, that certain Third Amendment to Amended and Restated Master Lease Agreement (Lease No. 2), dated as of June 20, 2011, that certain Fourth Amendment to Amended and Restated Master Lease Agreement (Lease No. 2), dated as of July 22, 2011, that certain Fifth Amendment to Amended and Restated Master Lease Agreement (Lease No. 2), dated as of August 31, 2012, that certain Partial Termination of and Sixth Amendment to Amended and Restated Master Lease Agreement (Lease No. 2), dated as of September 19, 2013, that certain Partial Termination of and Seventh Amendment to Amended and Restated Master Lease Agreement (Lease No. 2), dated as of June 1, 2014, and that certain Partial Termination of and Eighth Amendment to Amended and Restated Master Lease Agreement (Lease No. 2), dated as of July 20, 2015 (as so amended, "Amended Lease No. 2"), Landlord leases to Tenant, and Tenant leases from Landlord, the Leased Property (this and other capitalized terms used but not otherwise defined herein having the meanings given such terms in Amended Lease No. 2), all as more particularly described in Amended Lease No. 2;

WHEREAS, SPTMNR Properties Trust and Five Star Quality Care-WI, LLC have agreed to sell the Property formerly known as River Hills West and having any address at 321 Riverside Drive, Pewaukee, Wisconsin (the "Pewaukee Property"); and

WHEREAS, in connection with the sale of the Pewaukee Property, Landlord and Tenant wish to amend Amended Lease No. 2 to terminate Amended Lease No. 2 with respect to the Pewaukee Property effective as of the date hereof;

NOW, THEREFORE, in consideration of the mutual covenants herein contained and other good and valuable consideration, the mutual receipt and legal sufficiency of which are hereby acknowledged, Landlord and Tenant hereby agree that, effective as of the date hereof, Amended Lease No. 2 is hereby amended as follows:

1.    Partial Termination of Lease. Amended Lease No. 2 is terminated with respect to the Pewaukee Property and neither Landlord nor Tenant shall have any further

- 1 -

rights or liabilities thereunder with respect to the Pewaukee Property from and after the date hereof, except for those rights and liabilities which by their terms survive the termination of Amended Lease No. 2.

2.    Minimum Rent. The defined term "Minimum Rent" set forth in Section 1.67 of Amended Lease No. 2 is deleted in its entirety and replaced with the following:

"Minimum Rent" shall mean the sum of Sixty-Four Million Two Hundred Eighty-Seven Thousand Seven Hundred Thirty-Nine and 93/100ths Dollars ($64,287,739.93) per annum.

3.    Schedule 1. Schedule 1 to Amended Lease No. 2 is deleted in its entirety and replaced with Schedule 1 attached hereto.

4.    Exhibit A. Exhibit A to Amended Lease No. 2 is amended by deleting Exhibit A-49 attached thereto in its entirety and replacing it with "Intentionally Deleted."

5.    Ratification. As amended hereby, Amended Lease No. 2 is ratified and confirmed.

[Remainder of page intentionally left blank; signature pages follow]

- 2 -

IN WITNESS WHEREOF, the parties have caused this Amendment to be duly executed as a sealed instrument as of the date first above written.

LANDLORD:

SPTIHS PROPERTIES TRUST

By: /s/ David J. Hegarty             

David J. Hegarty

President

SPTMNR PROPERTIES TRUST

By: /s/ David J. Hegarty             

David J. Hegarty

President

SNH/LTA PROPERTIES GA LLC

By: /s/ David J. Hegarty             

David J. Hegarty

President

SNH/LTA PROPERTIES TRUST

By: /s/ David J. Hegarty             

David J. Hegarty

President

O.F.C. CORPORATION

By: /s/ David J. Hegarty             

David J. Hegarty

President

SNH CHS PROPERTIES TRUST

By: /s/ David J. Hegarty             

David J. Hegarty

President

- 3 -

CCC OF KENTUCKY TRUST

By: /s/ David J. Hegarty             

David J. Hegarty

President

LEISURE PARK VENTURE LIMITED PARTNERSHIP

By:    CCC Leisure Park Corporation,        its General Partner

By: /s/ David J. Hegarty        

David J. Hegarty

President

CCDE SENIOR LIVING LLC

By: /s/ David J. Hegarty             

David J. Hegarty

President

CCOP SENIOR LIVING LLC

By: /s/ David J. Hegarty             

David J. Hegarty

President

CCC PUEBLO NORTE TRUST

By: /s/ David J. Hegarty             

David J. Hegarty

President

CCC RETIREMENT COMMUNITIES II, L.P.

By:    Crestline Ventures LLC,

its General Partner

By: /s/ David J. Hegarty        

David J. Hegarty

President

- 4 -

CCC INVESTMENTS I, L.L.C.

By: /s/ David J. Hegarty             

David J. Hegarty

President

CCC FINANCING I TRUST

By: /s/ David J. Hegarty             

David J. Hegarty

President

CCC FINANCING LIMITED, L.P.

By:    CCC Retirement Trust,

its General Partner

By: /s/ David J. Hegarty        

David J. Hegarty

President

SNH SOMERFORD PROPERTIES TRUST

By: /s/ David J. Hegarty             

David J. Hegarty

President

- 5 -

TENANT:

FIVE STAR QUALITY CARE TRUST

By: /s/ Bruce J. Mackey Jr.             

Bruce J. Mackey Jr.

President

FS TENANT HOLDING COMPANY TRUST

By: /s/ Bruce J. Mackey Jr.             

Bruce J. Mackey Jr.

President

- 6 -

SCHEDULE 1

PROPERTY-SPECIFIC INFORMATION

Exhibit	Property Address	Base Gross Revenues (Calendar Year)	Base Gross Revenues (Dollar Amount)	Commencement Date	Interest Rate
A-1	Ashton Gables in Riverchase 2184 Parkway Lake Drive Birmingham, AL 35244	2009	$2,121,622	08/01/2008	8%
A-2	Lakeview Estates 2634 Valleydale Road Birmingham, AL 35244	2009	$2,692,868	08/01/2008	8%
A-3	Forum at Pueblo Norte 7090 East Mescal Street Scottsdale, AZ 85254	2005	$11,470,312	01/11/2002	10%
A-4	La Salette Health and Rehabilitation Center 537 East Fulton Street Stockton, CA 95204	2005	$7,726,002	12/31/2001	10%
A-5	Thousand Oaks Health Care Center 93 West Avenida de Los Arboles Thousand Oaks, CA 91360	2005	$8,087,430	12/31/2001	10%
A-6	Skyline Ridge Nursing & Rehabilitation Center 515 Fairview Avenue Canon City, CO 81212	2005	$4,104,100	12/31/2001	10%
A-7	Springs Village Care Center 110 West Van Buren Street Colorado Springs, CO 80907	2005	$4,799,252	12/31/2001	10%
A-8	Willow Tree Care Center 2050 South Main Street Delta, CO 81416	2005	$4,310,982	12/31/2001	10%
A-9	Cedars Healthcare Center 1599 Ingalls Street Lakewood, CO 80214	2005	$6,964,007	12/31/2001	10%
A-10	Millcroft 255 Possum Park Road Newark, DE 19711	2005	$11,410,121	01/11/2002	10%
A-11	Forwood Manor 1912 Marsh Road Wilmington, DE 19810	2005	$13,446,434	01/11/2002	10%
A-12	Foulk Manor South 407 Foulk Road Wilmington, DE 19803	2005	$4,430,251	01/11/2002	10%
A-13	Shipley Manor 2723 Shipley Road Wilmington, DE 19810	2005	$9,333,057	01/11/2002	10%
A-14	Forum at Deer Creek 3001 Deer Creek Country Club Blvd. Deerfield Beach, FL 33442	2005	$12,323,581	01/11/2002	10%
A-15	Springwood Court 12780 Kenwood Lane Fort Myers, FL 33907	2005	$2,577,612	01/11/2002	10%
A-16	Fountainview 111 Executive Center Drive West Palm Beach, FL 33401	2005	$7,920,202	01/11/2002	10%
A-17	Morningside of Athens 1291 Cedar Shoals Drive Athens, GA 30605	2006	$1,560,026	11/19/2004	9%
A-18	Marsh View Senior Living 7410 Skidaway Road Savannah, GA 31406	2007	$2,108,378	11/01/2006	8.25%

Exhibit	Property Address	Base Gross Revenues (Calendar Year)	Base Gross Revenues (Dollar Amount)	Commencement Date	Interest Rate
A-19	Intentionally deleted.	N/A	N/A	N/A	N/A
A-20	West Bridge Care & Rehabilitation 1015 West Summit Street Winterset, IA 50273	2005	$3,157,928	12/31/2001	10%
A-21	Meadowood Retirement Community 2455 Tamarack Trail Bloomington, IN 47408	2009	$12,061,814	11/01/2008	8%
A-22	Woodhaven Care Center 510 West 7th Street Ellinwood, KS 67526	2005	$2,704,674	12/31/2001	10%
A-23	Lafayette at Country Place 690 Mason Headley Road Lexington, KY 40504	2005	$4,928,052	01/11/2002	10%
A-24	Lexington Country Place 700 Mason Headley Road Lexington, KY 40504	2005	$8,893,947	01/11/2002	10%
A-25	Intentionally deleted.	N/A	N/A	N/A	N/A
A-26	Intentionally deleted.	N/A	N/A	N/A	N/A
A-27	HeartFields at Bowie 7600 Laurel Bowie Road Bowie, MD 20715	2005	$2,436,102	10/25/2002	10%
A-28	HeartFields at Frederick 1820 Latham Drive Frederick, MD 21701	2005	$2,173,971	10/25/2002	10%
A-29	Intentionally deleted.	N/A	N/A	N/A	N/A
A-30	Intentionally deleted.	N/A	N/A	N/A	N/A
A-31	Morys Haven 1112 15th Street Columbus, NE 68601	2005	$2,440,714	12/31/2001	10%
A-32	Intentionally deleted.	N/A	N/A	N/A	N/A
A-33	Wedgewood Care Center 800 Stoeger Drive Grand Island, NE 68803	2005	$4,000,565	12/31/2001	10%
A-34	Intentionally deleted.	N/A	N/A	N/A	N/A
A-35	Crestview Healthcare Center 1100 West First Street Milford, NE 68405	2005	$2,284,407	12/31/2001	10%
A-36	Utica Community Care Center 1350 Centennial Avenue Utica, NE 68456	2005	$1,950,325	12/31/2001	10%
A-37	Leisure Park 1400 Route 70 Lakewood, NJ 08701	2005	$14,273,446	01/07/2002	10%
A-38	Franciscan Manor 71 Darlington Road Patterson Township Beaver Falls, PA 15010	2006	$4,151,818	10/31/2005	9%
A-39	Mount Vernon of Elizabeth 145 Broadlawn Drive Elizabeth, PA 15037	2006	$2,332,574	10/31/2005	9%
A-40	Overlook Green 5250 Meadowgreen Drive Whitehall, PA 15236	2006	$3,878,300	10/31/2005	9%
A-41	Myrtle Beach Manor 9547 Highway 17 North Myrtle Beach, SC 29572	2005	$6,138,714	01/11/2002	10%

Exhibit	Property Address	Base Gross Revenues (Calendar Year)	Base Gross Revenues (Dollar Amount)	Commencement Date	Interest Rate
A-42	Morningside of Anderson 1304 McLees Road Anderson, SC 29621	2006	$1,381,775	11/19/2004	9%
A-43	Heritage Place at Boerne 120 Crosspoint Drive Boerne, TX 78006	2009	$1,469,683	02/07/2008	8%
A-44	Forum at Park Lane 7831 Park Lane Dallas, TX 75225	2005	$13,620,931	01/11/2002	10%
A-45	Heritage Place at Fredericksburg 96 Frederick Road Fredericksburg, TX 78624	2009	$1,386,771	02/07/2008	8%
A-46	Intentionally deleted.	N/A	N/A	N/A	N/A
A-47	Intentionally deleted.	N/A	N/A	N/A	N/A
A-48	ManorPointe - Oak Creek Independent Senior Apartments and Meadowmere - Mitchell Manor - Oak Creek 700 East Stonegate Drive and 701 East Puetz Road Oak Creek, WI 53154	2009	$4,189,440	01/04/2008	8%
A-49	Intentionally deleted.	N/A	N/A	N/A	N/A
A-50	The Virginia Health &    Rehabilitation Center 1451 Cleveland Avenue Waukesha, WI 53186	2005	$6,128,045	12/31/2001	10%
A-51	Reserve at Greenbriar 1005 Elysian Place Chesapeake, Virginia	2012	$2,508,269	06/20/2011	7.5%
A-52	Palms at St. Lucie West 501 N.W. Cashmere Boulevard Port St. Lucie, Florida	2012	$2,903,642	07/22/2011	7.5%
A-53	Forum at Desert Harbor 13840 North Desert Harbor Drive Peoria, AZ 85381	2005	$9,830,918	01/11/2002	10.0%
A-54	Forum at Tucson 2500 North Rosemont Blvd. Tucson, AZ 85712	2005	$13,258,998	01/11/2002	10.0%
A-55	Park Summit at Coral Springs 8500 Royal Palm Blvd. Coral Springs, FL 33065	2005	$11,229,677	01/11/2002	10.0%
A-56	Gables at Winchester 299 Cambridge Street Winchester, MA 01890	2005	$6,937,852	01/11/2002	10.0%
A-57	Forum at Memorial Woods 777 North Post Oak Road Houston, TX 77024	2005	$19,734,400	01/11/2002	10.0%

EX-12.1

Exhibit 12.1

Senior Housing Properties Trust

Computation of Ratio of Earnings to Fixed Charges

(dollars in thousands)

	Nine Months Ended September 30,		Year Ended December 31,
	2016		2015		2014		2013		2012		2011
Earnings:
Income from continuing operations (including gains on sales of properties, if any) before income tax expense and equity in earnings of an investee	$	98,620	$	125,474	$	162,141	$	183,997	$	131,882	$	148,128
Fixed charges	123,837		150,881		135,114		117,819		117,240		98,262
Adjusted earnings	$	222,457	$	276,355	$	297,255	$	301,816	$	249,122	$	246,390
Fixed charges:
Interest expense (including net amortization of debt premiums and discounts and debt issuance costs)	$	123,837	$	150,881	$	135,114	$	117,819	$	117,240	$	98,262
Ratio of Earnings to Fixed Charges	1.8x		1.8x		2.2x		2.6x		2.1x		2.5x

EX-31.1

Exhibit 31.1

CERTIFICATION PURSUANT TO EXCHANGE ACT RULES 13a-14(a) AND 15d-14(a)

I, Barry M. Portnoy, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Senior Housing Properties Trust;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a. Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b. Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c. Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d. Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a. All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b. Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: November 4, 2016	/s/ Barry M. Portnoy
	Barry M. Portnoy
	Managing Trustee

EX-31.2

Exhibit 31.2

CERTIFICATION PURSUANT TO EXCHANGE ACT RULES 13a-14(a) AND 15d-14(a)

I, Adam D. Portnoy, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Senior Housing Properties Trust;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a. Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b. Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c. Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d. Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a. All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b. Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: November 4, 2016	/s/ Adam D. Portnoy
	Adam D. Portnoy
	Managing Trustee

EX-31.3

Exhibit 31.3

CERTIFICATION PURSUANT TO EXCHANGE ACT RULES 13a-14(a) AND 15d-14(a)

I, David J. Hegarty, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Senior Housing Properties Trust;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a. Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b. Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c. Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d. Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a. All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b. Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: November 4, 2016	/s/ David J. Hegarty
	David J. Hegarty
	President and Chief Operating Officer

EX-31.4

Exhibit 31.4

CERTIFICATION PURSUANT TO EXCHANGE ACT RULES 13a-14(a) AND 15d-14(a)

I, Richard W. Siedel, Jr., certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Senior Housing Properties Trust;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a. Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b. Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c. Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d. Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a. All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b. Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: November 4, 2016	/s/ Richard W. Siedel, Jr.
	Richard W. Siedel, Jr.
	Chief Financial Officer and Treasurer

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO 18 U.S.C. SEC. 1350

In connection with the filing by Senior Housing Properties Trust (the “Company”) of the Quarterly Report on Form 10-Q for the period ended September 30, 2016 (the “Report”), each of the undersigned hereby certifies, to the best of his knowledge:

1. The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Barry M. Portnoy	/s/ David J. Hegarty
Barry M. Portnoy	David J. Hegarty
Managing Trustee	President and Chief Operating Officer
/s/ Adam D. Portnoy	/s/ Richard W. Siedel, Jr.
Adam D. Portnoy	Richard W. Siedel, Jr.
Managing Trustee	Chief Financial Officer and Treasurer

Date: November 4, 2016

EX-99.2

Exhibit 99.2

October 28, 2016

Mr. Bruce J. Mackey, Jr.

Five Star Quality Care, Inc.

400 Centre Street

Newton, MA 02458

Four Georgia AL/IL Properties

Dear Bruce:

The purpose of this letter is to confirm our understanding and agreement that Five Star Quality Care, Inc. (“FVE”) will take over operations of the four senior living communities described below:

Property	Street Address	City, State	IL Units	AL Units	MC Units	Total Units
Dogwood Forest of Gainesville	3315 Thompson Bridge Rd.	Gainesville, GA	85	43	20	148
Dogwood Forest of Fayetteville	1294 Hwy 54 West	Fayetteville, GA	0	44	18	62
Dogwood Forest of Alpharetta	253 N. Main St	Alpharetta, GA	0	56	20	76
Dogwood Forest of Eagles Landing	475 Country Club Dr.	Stockbridge, GA	0	43	18	61
			85	186	76	347

Five Star will manage these communities for SNH on substantially the same terms and conditions as are applicable to the property known as Chateau Vestavia in Birmingham, Alabama.

We expect Five Star’s management of these four Georgia communities to begin on November 23. The transition of management to Five Star is conditioned on our obtaining any required approvals, including lender approvals, and the effective termination of the current manager of these communities.

October 28, 2016

Page Two

Please confirm your agreement with the foregoing by signing below where indicated and returning a copy of this letter so signed to me.

Very truly yours,

/s/ David J. Hegarty

David J. Hegarty

President

AGREED:

FIVE STAR QUALITY CARE, INC.

By: /s/ Bruce J. Mackey, Jr.

Bruce J. Mackey, Jr.

President

XML

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2016	Nov. 03, 2016
Document and Entity Information
Entity Registrant Name	SENIOR HOUSING PROPERTIES TRUST
Entity Central Index Key	0001075415
Document Type	10-Q
Document Period End Date	Sep. 30, 2016
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding (in shares)		237,546,042
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q3

XML

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Real estate properties:
Land	$ 798,343	$ 781,426
Buildings and improvements	6,869,576	6,675,514
Total real estate properties, gross	7,667,919	7,456,940
Accumulated depreciation	(1,280,778)	(1,147,540)
Total real estate properties, net	6,387,141	6,309,400
Cash and cash equivalents	40,773	37,656
Restricted cash	6,325	6,155
Acquired real estate leases and other intangible assets, net	532,205	604,286
Other assets, net	263,654	202,593
Total assets	7,230,098	7,160,090
LIABILITIES AND SHAREHOLDERS’ EQUITY
Unsecured revolving credit facility	215,000	775,000
Unsecured term loans, net	546,869	546,305
Senior unsecured notes, net	1,722,032	1,478,536
Secured debt and capital leases, net	1,168,827	679,295
Accrued interest	33,130	16,974
Assumed real estate lease obligations, net	109,164	115,363
Other liabilities	196,108	188,857
Total liabilities	3,991,130	3,800,330
Commitments and contingencies
Shareholders’ equity:
Common shares of beneficial interest, $.01 par value: 300,000,000 shares authorized, 237,546,042 and 237,471,559 shares issued and outstanding at September 30, 2016 and December 31, 2015, respectively	2,375	2,375
Additional paid in capital	4,533,492	4,531,703
Cumulative net income	1,576,000	1,477,590
Cumulative other comprehensive income (loss)	24,318	(32,537)
Cumulative distributions	(2,897,217)	(2,619,371)
Total shareholders’ equity	3,238,968	3,359,760
Total liabilities and shareholders’ equity	$ 7,230,098	$ 7,160,090

XML

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Sep. 30, 2016	Dec. 31, 2015
Statement of Financial Position [Abstract]
Common shares of beneficial interest, par value (in dollars per share)	$ 0.01	$ 0.01
Common shares of beneficial interest, shares authorized (in shares)	300,000,000	300,000,000
Common shares of beneficial interest, shares issued (in shares)	237,546,042	237,471,559
Common shares of beneficial interest, shares outstanding (in shares)	237,546,042	237,471,559

XML

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Revenues:
Rental income	$ 165,503	$ 158,863	$ 490,922	$ 460,193
Residents fees and services	98,480	96,412	292,803	271,061
Total revenues	263,983	255,275	783,725	731,254
Expenses:
Property operating expenses	103,347	96,927	298,776	276,313
Depreciation and amortization	72,344	70,016	214,938	186,234
General and administrative	12,107	10,316	34,931	32,563
Acquisition and certain other transaction related costs	824	742	1,443	6,517
Impairment of assets	4,578	(98)	16,930	(98)
Total expenses	193,200	177,903	567,018	501,529
Operating income	70,783	77,372	216,707	229,725
Dividend income	659	0	1,449	0
Interest and other income	89	57	330	274
Interest expense	(43,438)	(38,989)	(123,837)	(112,838)
Loss on early extinguishment of debt	(84)	(21)	(90)	(1,469)
Income from continuing operations before income tax expense and equity in earnings (losses) of an investee	28,009	38,419	94,559	115,692
Income tax expense	(119)	(146)	(318)	(385)
Equity in earnings (losses) of an investee	13	(24)	107	70
Income from continuing operations	27,903	38,249	94,348	115,377
Discontinued operations:
Loss from discontinued operations	0	0	0	(350)
Impairment of assets from discontinued operations	0	0	0	(602)
Income before gain on sale of properties	27,903	38,249	94,348	114,425
Gain on sale of properties	0	0	4,061	0
Net income	27,903	38,249	98,409	114,425
Other comprehensive income:
Unrealized gain (loss) on investments in available for sale securities	16,562	(7,242)	56,680	(4,407)
Equity in unrealized gain (loss) of an investee	80	(72)	175	(91)
Other comprehensive income	16,642	(7,314)	56,855	(4,498)
Comprehensive income	$ 44,545	$ 30,935	$ 155,264	$ 109,927
Weighted average common shares outstanding (basic) (in shares)	237,347	237,263	237,329	231,454
Weighted average common shares outstanding (diluted) (in shares)	237,396	237,293	237,369	231,486
Per common share amounts (basic and diluted):
Income from continuing operations (in dollars per share)	$ 0.12	$ 0.16	$ 0.41	$ 0.50
Loss from discontinued operations (in dollars per share)	0.00	0.00	0.00	(0.01)
Net income (in dollars per share)	$ 0.12	$ 0.16	$ 0.41	$ 0.49

XML

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) shares in Thousands, $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Cash flows from operating activities:
Net income	$ 98,409	$ 114,425
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization	214,938	186,234
Amortization of deferred financing fees and debt discounts and premiums	4,272	4,541
Straight line rental income	(13,598)	(13,739)
Amortization of acquired real estate leases and other intangible assets	(3,795)	(3,461)
Loss on early extinguishment of debt	90	1,469
Impairment of assets	16,930	504
Gain on sale of properties	(4,061)	0
Gain on sale of investments	0	(71)
Other non-cash adjustments	(2,828)	(1,714)
Equity in earnings of an investee	(107)	(70)
Change in assets and liabilities:
Restricted cash	(170)	2,365
Other assets	2,990	(9,561)
Accrued interest	16,156	13,616
Other liabilities	13,170	26,303
Cash provided by operating activities	342,396	320,841
Cash flows from investing activities:
Real estate acquisitions and deposits	(188,523)	(1,132,760)
Real estate improvements	(72,455)	(55,983)
Investment in The RMR Group Inc.	0	(16,588)
Proceeds from sale of properties	29,179	2,755
Proceeds from sale of investments	0	6,571
Cash used for investing activities	(231,799)	(1,196,005)
Cash flows from financing activities:
Proceeds from issuance of common shares, net	0	659,496
Proceeds from issuance of senior unsecured notes	250,000	0
Proceeds from unsecured term loans	0	200,000
Proceeds from borrowings on revolving credit facility	505,000	1,308,000
Proceeds from issuance of secured debt	620,000	0
Repayments of borrowings on revolving credit facility	(1,065,000)	(920,243)
Repayment of other debt	(127,202)	(70,087)
Loss on early extinguishment of debt settled in cash	0	(1,448)
Payment of debt issuance costs	(12,016)	(2,758)
Repurchase of common shares	(416)	(212)
Distributions to shareholders	(277,846)	(263,770)
Cash (used for) provided by financing activities	(107,480)	908,978
Increase in cash and cash equivalents	3,117	33,814
Cash and cash equivalents at beginning of period	37,656	27,594
Cash and cash equivalents at end of period	40,773	61,408
Supplemental cash flows information:
Interest paid	103,409	94,681
Income taxes paid	$ 363	$ 477
Non-cash investing activities:
Investment funded by issuance of common shares (in shares)	0	(44,461)
Acquisitions funded by assumed debt	$ 0	$ (181,432)
Non-cash financing activities:
Assumption of mortgage notes payable	0	181,432
Issuance of common shares	$ 0	$ 47,691

XML

Basis of Presentation

9 Months Ended

Sep. 30, 2016

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation

Basis of Presentation

The accompanying condensed consolidated financial statements of Senior Housing Properties Trust and its subsidiaries, or we, us, or our, are unaudited.  Certain information and disclosures required by U.S. generally accepted accounting principles, or GAAP, for complete financial statements have been condensed or omitted.  We believe the disclosures made are adequate to make the information presented not misleading.  However, the accompanying condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes contained in our Annual Report on Form 10-K for the year ended December 31, 2015, or our Annual Report.  In the opinion of our management, all adjustments, which include only normal recurring adjustments, considered necessary for a fair presentation have been included.  All intercompany transactions and balances with or among our consolidated subsidiaries have been eliminated.  Operating results for interim periods are not necessarily indicative of the results that may be expected for the full year.

The preparation of financial statements in conformity with GAAP requires us to make estimates and assumptions that affect reported amounts. Actual results could differ from those estimates.  Significant estimates in our condensed consolidated financial statements include purchase price allocations, useful lives of fixed assets and impairment of real estate and intangible assets. We have made reclassifications to the prior years’ condensed consolidated financial statements to conform to the current year’s presentation. These reclassifications had no effect on net income or shareholders’ equity.

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Recent Accounting Pronouncements

9 Months Ended

Sep. 30, 2016

New Accounting Pronouncements and Changes in Accounting Principles [Abstract]

Recent Accounting Pronouncements

Recent Accounting Pronouncements

On January 1, 2016, we adopted the Financial Accounting Standards Board, or FASB, Accounting Standards Update, or ASU, No. 2015-02, Consolidation. Among other things, this update changed how an entity determines the primary beneficiary of a variable interest entity. The implementation of this update did not have an impact in our condensed consolidated financial statements.

On January 1, 2016, we adopted FASB ASU No. 2015-03, Simplifying the Presentation of Debt Issuance Costs, which requires debt issuance costs to be presented in the balance sheet as a direct deduction from the associated debt liability, and ASU No. 2015-15, Presentation and Subsequent Measurement of Debt Issuance Costs Associated with Line-of-Credit Arrangements – Amendments to SEC Paragraphs Pursuant to Staff Announcement at June 18, 2015 EITF Meeting, which addresses the presentation of debt issuance costs related to line of credit arrangements. The implementation of these updates resulted in the reclassification of certain of our capitalized debt issuance costs as an offset to the associated debt liability in our condensed consolidated balance sheets. The classification of capitalized debt issuance costs related to our unsecured revolving credit facility remains unchanged in accordance with ASU No. 2015-15. As of December 31, 2015, debt issuance costs related to our unsecured term loans, senior unsecured notes and secured debt and capital leases of $3,695, $16,530 and $3,664, respectively, were reclassified from assets to an offset to the associated debt liability in our condensed consolidated balance sheets.

On January 1, 2016, we adopted FASB ASU No. 2015-16, Simplifying the Accounting for Measurement-Period Adjustments, which eliminates the requirement for an acquirer in a business combination to account for measurement period adjustments retrospectively. Instead, acquirers must recognize measurement period adjustments during the period in which they determine the amounts, including the effect on earnings of any amounts they would have recorded in previous periods if the accounting had been completed at the acquisition date. The implementation of this update did not have an impact in our condensed consolidated financial statements.

In January 2016, the FASB issued ASU No. 2016-01, Recognition and Measurement of Financial Assets and Financial Liabilities, which changes how entities measure certain equity investments and present changes in the fair value of financial liabilities measured under the fair value option that are attributable to their own credit. This update is effective for interim and annual periods beginning after December 15, 2017, with early adoption permitted subject to certain conditions. Currently, changes in fair value of these investments are recorded through other comprehensive income. Under this ASU, these changes will be recorded through earnings. We are continuing to evaluate this guidance, but we expect the implementation of this guidance will affect how changes in the fair value of available for sale securities we hold are presented in our condensed consolidated financial statements.

In February 2016, the FASB issued ASU No. 2016-02, Leases, which sets out the principles for the recognition, measurement, presentation and disclosure of leases for both parties to a contract (i.e., lessees and lessors). ASU No. 2016-02 requires lessees to apply a dual approach, classifying leases as either finance or operating leases based on the principle of whether or not the lease is effectively a financed purchase of the leased asset by the lessee. This classification will determine whether the lease expense is recognized based on an effective interest method or on a straight line basis over the term of the lease. A lessee is also required to record a right of use asset and a lease liability for all leases with a term of greater than 12 months regardless of their classification. Leases with a term of 12 months or less will be accounted for similar to existing guidance for operating leases today. The new standard requires lessors to account for leases using an approach that is substantially equivalent to existing guidance for sales type leases, direct financing leases and operating leases. ASU No. 2016-02 is effective for reporting periods beginning after December 15, 2018, with early adoption permitted. We are currently assessing the potential impact the adoption of ASU No. 2016-02 will have in our condensed consolidated financial statements.

In March 2016, the FASB issued ASU No. 2016-09, Compensation – Stock Compensation, which identifies areas for simplification involving several aspects of accounting for share based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, an option to recognize gross stock compensation expense with actual forfeitures recognized as they occur, as well as certain classifications on the statement of cash flows. ASU No. 2016-09 is effective for reporting periods beginning after December 15, 2016.  We are currently assessing the potential impact that the adoption of ASU No. 2016-09 will have in our condensed consolidated financial statements.

In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, which requires that entities use a new forward looking “expected loss” model that generally will result in the earlier recognition of allowance for credit losses. The measurement of expected credit losses is based upon historical experience, current conditions, and reasonable and supportable forecasts that affect the collectability of the reported amount. ASU No. 2016-13 is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. We are currently assessing the potential impact that adoption of ASU No. 2016-13 will have in our condensed consolidated financial statements.

In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments, which clarifies how companies present and classify certain cash receipts and cash payments in the statement of cash flows. ASU No. 2016-15 is effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. We are currently assessing the potential impact that adoption of ASU No. 2016-15 will have in our condensed consolidated financial statements.

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Real Estate Properties

9 Months Ended

Sep. 30, 2016

Real Estate [Abstract]

Real Estate Properties

Real Estate Properties

At September 30, 2016, we owned 431 properties (457 buildings) located in 42 states and Washington, D.C. We have accounted for, or expect to account for, the following acquisitions as business combinations unless otherwise noted.

Acquisitions:

The allocation of the purchase prices of the acquisitions shown below are based upon preliminary estimates of the fair value of assets acquired and liabilities assumed.  The final amounts allocated to assets acquired and liabilities assumed may differ from the preliminary allocations presented in these condensed consolidated financial statements.

Triple Net Leased Senior Living Communities:

In June 2016, we acquired seven senior living communities located in four states with 545 living units from Five Star Quality Care, Inc., or, together with its subsidiaries, Five Star, for approximately $112,350, excluding closing costs, and simultaneously entered into a new long term master lease with Five Star for those communities.We funded this acquisition using cash on hand and borrowings under our revolving credit facility. See Note 10 for further information regarding this sale and leaseback transaction with Five Star.  We accounted for this acquisition as an asset acquisition, and the preliminary allocation of the purchase price is as follows:

Cash Paid

Number

plus

Premium

of

Units /

Assumed

Buildings and

Assumed

on Assumed

Date

Location

Properties

Beds

Debt(1)

Land

Improvements

FF&E

Debt

Debt

Jun-16

4 states

7

545

$

112,493

$

11,085

$

94,940

$

6,468

$

—

$

—

(1) This amount includes the cash we paid as well as various closing settlement adjustments and closing costs. 

In September 2016, we entered into an agreement to acquire two senior living communities with a combined 126 living units located in Illinois for approximately $18,600, excluding closing costs. We expect to acquire these communities in the fourth quarter of 2016. If these communities are acquired, we expect to lease these communities to Five Star under one of our existing master leases with Five Star. These acquisitions are subject to various conditions; accordingly, we cannot be sure that we will complete these acquisitions and that we will lease them to Five Star, that the acquisitions and leasing arrangements will not be delayed or that the terms will not change. See Note 10 for further information regarding our leasing arrangements with Five Star.

Managed Senior Living Communities:

In May 2016, we acquired one senior living community located in Georgia with 38 living units for a purchase price of approximately $8,400, excluding closing costs. We acquired this community using a taxable REIT subsidiary, or TRS, structure and we have entered into a management agreement with Five Star to manage this community. We funded this acquisition using cash on hand and borrowings under our revolving credit facility. See Note 10 for further information regarding our management arrangements with Five Star. The preliminary allocation of the purchase price for this acquisition is as follows:

Cash Paid

Number

plus

Acquired

Premium

of

Units /

Assumed

Buildings and

Real Estate

Assumed

on Assumed

Date

Location

Properties

Beds

Debt(1)

Land

Improvements

FF&E

Leases

Debt

Debt

May-16

Georgia

1

38

$

8,400

$

327

$

6,195

$

478

$

1,400

$

—

$

—

(1) This amount includes the cash we paid as well as various closing settlement adjustments and excludes closing costs. 

MOBs:

In February 2016, we acquired one property (three buildings) leased to medical providers, medical related businesses, clinics and biotech laboratory tenants, or MOBs, located in Minnesota with approximately 128,000 square feet for a purchase price of approximately $22,700, excluding closing costs. In May 2016, we acquired one MOB (one building) located in Florida with approximately 166,000 square feet for a purchase price of approximately $45,000, excluding closing costs. We accounted for the acquisition of the MOB located in Florida as an asset acquisition. We funded these acquisitions using cash on hand and borrowings under our revolving credit facility. The preliminary allocations of the purchase prices for these acquisitions are as follows:

					Cash Paid								Acquired
		Number	Number		plus						Acquired		Real Estate					Premium
		of	of	Square	Assumed				Buildings and		Real Estate		Lease			Assumed		on Assumed
Date	Location	Properties	Buildings	Feet (000’s)	Debt (1)		Land		Improvements		Leases(2)		Obligations(2)			Debt		Debt
Feb-16	Minnesota	1	3	128	$	22,700	$	4,074	$	15,223	$	5,163	$	(1,760	)	$	—	$	—
May-16	Florida	1	1	166	45,230		2,792		42,438		—		—			—		—
		2	4	294	$	67,930	$	6,866	$	57,661	$	5,163	$	(1,760	)	$	—	$	—

(1) With respect to the property located in Minnesota, this amount includes the cash we paid as well as various closing settlement adjustments, and excludes closing costs. With respect to the property located in Florida that is being accounted for as an asset acquisition, this amount includes the cash we paid as well as various closing settlement adjustments and closing costs.

(2) The weighted average amortization periods for acquired lease intangible assets and assumed real estate lease obligations at the time of these acquisitions was 6.4 years and 7.3 years, respectively.

In October 2016, we acquired one MOB (one building) located in Ohio with approximately 96,000 square feet for approximately $18,500, excluding closing costs.

Impairment:

We periodically evaluate our assets for impairments. Impairment indicators may include declining tenant or resident occupancy, weak or declining profitability from the property, decreasing tenant cash flows or liquidity, our decision to dispose of an asset before the end of its estimated useful life, and legislative, market or industry changes that could permanently reduce the value of an asset. If indicators of impairment are present, we evaluate the carrying value of the affected asset by comparing it to the expected future undiscounted net cash flows to be generated from that asset. If the sum of these expected future net cash flows is less than the carrying value, we reduce the net carrying value of the asset to its estimated fair value. During the nine months ended September 30, 2016, we recorded the following impairment charges:

• $4,391 in the first quarter of 2016 to write off acquired lease intangible assets associated with lease defaults at two of our triple net leased senior living communities leased to two third party private operators.  In April 2016, we reached an agreement with one of these tenants and its guarantor to settle past due amounts, terminate the lease and transfer operations. As part of this agreement, we received an amount of $2,365 and entered into a management agreement with Five Star to operate this community for our account under a TRS structure. In July 2016, we terminated the other lease and entered into a management agreement with Five Star to operate the community for our account under a TRS structure. See Note 10 for further information regarding our management arrangements with Five Star.

• $2,999 in the first quarter of 2016 to reduce the carrying values of one MOB (one building) and one land parcel to their estimated sales prices less costs to sell. In March 2016, we sold the land parcel as described further below at “Dispositions”.

• $4,961 in the second quarter of 2016 to reduce the carrying values of five MOBs (five buildings) to their estimated sales prices less costs to sell. In July 2016, we sold four of these MOBs as described further below at “Dispositions”. In the third quarter of 2016, we recorded a reversal of impairment charges previously recorded of $7 to adjust the carrying value of these MOBs to their sales prices less costs to sell.

• $2,394 and $2,191 in the third quarter of 2016 to reduce the carrying value of one managed senior living community and one triple net leased skilled nursing facility, or SNF, respectively, to their estimated sales prices less costs to sell. In September 2016, we sold the triple net leased SNF as described further below at "Dispositions".

We have one MOB and one former memory care building at a managed senior living community classified as held for sale as of September 30, 2016.

Dispositions:

In March 2016, we sold a land parcel that was previously classified as held for sale for approximately $700, excluding closing costs. We did not recognize a gain or loss on sale from this sale.

In June 2016, we sold one triple net leased SNF that was previously classified as held for sale for approximately $9,100, excluding closing costs. We recognized a gain on sale of approximately $4,061 from this sale.

In July 2016, we sold four MOBs (four buildings) that were classified as held for sale at June 30, 2016 for approximately $20,150, excluding closing costs. In the third quarter of 2016, we recorded a reversal of impairment charges previously recorded of $7 to adjust the carrying values of these MOBs to their sales prices less costs to sell, and we did not recognize a gain or loss on sale from this sale.

In September 2016, we sold one SNF that was previously leased to Five Star for approximately $248, excluding closing costs. We recorded an impairment charge of approximately $2,191 to reduce the carrying value of this SNF to its sale price less cost to sell, and we did not recognize a gain or loss on this sale. As a result of this sale, Five Star's annual rent payable to us decreased by $25 in accordance with the terms of the applicable lease. See Note 10 for further information regarding our leasing arrangements with Five Star.

Results of operations for properties sold or held for sale are included in discontinued operations in our condensed consolidated statements of comprehensive income when the criteria for discontinued operations in Accounting Standards Codification 2015-20, Discontinued Operations, are met. The senior living communities and MOBs which we are or were offering for sale during the periods presented did not meet the criteria for discontinued operations and are included in continuing operations.

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Investments in Available for Sale Securities

9 Months Ended

Sep. 30, 2016

Unrealized Gain (Loss) on Investments [Abstract]

Investments in Available for Sale Securities

Investments in Available for Sale Securities

At September 30, 2016, we owned 4,235,000 common shares of Five Star. We classify these shares as available for sale securities and carry them at fair market value in other assets in our condensed consolidated balance sheets, with unrealized gains and losses reported as a component of shareholders’ equity. Our historical cost basis for these shares is $14,230. At September 30, 2016, our investment in Five Star had a fair value of $8,089, resulting in a cumulative unrealized loss of $6,141 based on Five Star’s quoted share price at September 30, 2016 ($1.91 per share).

At September 30, 2016, we owned 2,637,408 shares of class A common stock of The RMR Group Inc., or RMR Inc. We classify these shares of RMR Inc. as available for sale securities and carry them at fair value in other assets in our condensed consolidated balance sheets, with unrealized gains and losses reported as a component of shareholders’ equity. Our historical cost basis for these shares is $69,826. At September 30, 2016, our investment in RMR Inc. had a fair value of $100,063, resulting in a cumulative unrealized gain of $30,237 based on RMR Inc.’s quoted share price at September 30, 2016 ($37.94 per share).

See Notes 7 and 10 below for further information regarding our investments in available for sale securities.

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Indebtedness

9 Months Ended

Sep. 30, 2016

Debt Disclosure [Abstract]

Indebtedness

Indebtedness

Our principal debt obligations at September 30, 2016 were: (1) outstanding borrowings under our $1,000,000 unsecured revolving credit facility; (2) six public issuances of senior unsecured notes, including: (a) $400,000 principal amount at an annual interest rate of 3.25% due 2019, (b) $200,000 principal amount at an annual interest rate of 6.75% due 2020, (c) $300,000 principal amount at an annual interest rate of 6.75% due 2021, (d) $250,000 principal amount at an annual interest rate of 4.75% due 2024, (e) $350,000 principal amount at an annual interest rate of 5.625% due 2042 and (f) $250,000 principal amount at an annual interest rate of 6.25% due 2046; (3) our $350,000 principal amount term loan due 2020; (4) our $200,000 principal amount term loan due 2022; and (5) $1,160,847 aggregate principal amount of mortgages (excluding premiums, discounts and net debt issuance costs) secured by 52 of our properties (54 buildings) with maturity dates between 2017 and 2043.  The 52 mortgaged properties (54 buildings) had a carrying value (before accumulated depreciation) of $1,693,723 at September 30, 2016.  We also had two properties subject to capital leases with lease obligations totaling $11,643 at September 30, 2016; these two properties had a carrying value (before accumulated depreciation) of $36,061 at September 30, 2016, and the capital leases expire in 2026.

In February 2016, we issued $250,000 of 6.25% senior unsecured notes due 2046. We used the net proceeds of this offering to repay in part the then outstanding amount under our revolving credit facility and for general business purposes.

In July 2016, we entered into loan agreements and obtained an aggregate $620,000 secured debt financing that matures in August 2026. These loans are secured by one MOB (two buildings) located in Massachusetts and require interest at a weighted average fixed annual interest rate of 3.53%. We used the net proceeds from these loans to repay, in part, the then outstanding amount under our revolving credit facility and for general business purposes. The loan agreements contain customary covenants and provide for acceleration of payment of all amounts due thereunder upon the occurrence and continuation of certain events of default.

We have a $1,000,000 revolving credit facility that is available for general business purposes, including acquisitions. The maturity date of our revolving credit facility is January 15, 2018 and, subject to our payment of an extension fee and meeting other conditions, we have an option to extend the stated maturity date by an additional year to January 15, 2019. Our revolving credit facility provides that we can borrow, repay and re-borrow funds available under our revolving credit facility until maturity, and no principal repayment is due until maturity.  Our revolving credit facility requires annual interest to be paid on borrowings at LIBOR plus a premium, which was 130 basis points as of September 30, 2016, plus a facility fee of 30 basis points per annum on the total amount of lending commitments.  Both the interest rate premium and the facility fee are subject to adjustment based upon changes to our credit ratings.  As of September 30, 2016, the annual interest rate payable on borrowings under our revolving credit facility was 1.8%. The weighted average annual interest rates for borrowings under our revolving credit facility were 1.8% and 1.5% for the three months ended September 30, 2016 and 2015, respectively, and 1.7% and 1.5% for the nine months ended September 30, 2016 and 2015, respectively. As of September 30, 2016, we had $215,000 outstanding and $785,000 available for borrowing, and as of November 3, 2016, we had $265,000 outstanding and $735,000 available for borrowing under our revolving credit facility. We incurred interest expense and other associated costs related to our revolving credit facility of $2,024 and $2,884 for the three months ended September 30, 2016 and 2015, respectively. We incurred interest expense and other associated costs related to our revolving credit facility of $9,159 and $5,886 for the nine months ended September 30, 2016 and 2015, respectively. Our revolving credit facility includes an accordion feature pursuant to which maximum borrowings under the facility may be increased to up to $1,500,000 in certain circumstances.

We have a $200,000 term loan, which we borrowed in 2015. This term loan matures in September 2022 and is prepayable without penalty beginning September 29, 2017. This term loan requires annual interest to be paid at LIBOR plus a premium of 180 basis points that is subject to adjustment based upon changes to our credit ratings. At September 30, 2016, the annual interest rate payable for amounts outstanding under this term loan was 2.3%. The weighted average annual interest rate for amounts outstanding under this term loan was 2.3% for both the three and nine months ended September 30, 2016, and 2.3% for the period from September 28, 2015 (the day we entered into the term loan agreement) to September 30, 2015. We incurred interest expense and other associated costs related to this term loan of $1,173 and $3,433 for the three and nine months ended September 30, 2016, respectively, and $33 for both the three and nine months ended September 30, 2015. This term loan includes an accordion feature under which maximum borrowings may be increased to up to $400,000 in certain circumstances.

We also have a $350,000 term loan, which we borrowed in 2014. This term loan matures in January 2020 and is prepayable without penalty at any time.  This term loan requires annual interest to be paid at LIBOR plus a premium of 140 basis points that is subject to adjustment based upon changes to our credit ratings. At September 30, 2016, the annual interest rate payable on amounts outstanding under this term loan was 1.9%.  The weighted average annual interest rate for amounts outstanding under this term loan was 1.9% and 1.6% for the three months ended September 30, 2016 and 2015, respectively, and 1.9% and 1.6% for the nine months ended September 30, 2016 and 2015, respectively. We incurred interest expense and other associated costs related to this term loan of $1,707 and $1,423 for three months ended September 30, 2016 and 2015, respectively. We incurred interest expense and other associated costs related to this term loan of $4,956 and $4,246 for nine months ended September 30, 2016 and 2015, respectively. This term loan includes an accordion feature under which maximum borrowings may be increased to up to $700,000 in certain circumstances.

Our revolving credit facility and term loan agreements and our senior unsecured notes indentures and their supplements provide for acceleration of payment of all amounts due thereunder upon the occurrence and continuation of certain events of default, such as, in the case of our revolving credit facility and term loan agreements, a change of control of us, as defined, which includes The RMR Group LLC, or RMR LLC, ceasing to act as our business manager and property manager. Our revolving credit facility and term loan agreements and our senior unsecured notes indentures and their supplements also contain a number of covenants, including covenants that restrict our ability to incur debts, and generally require us to maintain certain financial ratios, and our revolving credit facility and term loan agreements restrict our ability to make distributions under certain circumstances. We believe we were in compliance with the terms and conditions of the respective covenants under our revolving credit facility and term loan agreements and our senior unsecured notes indentures and their supplements at September 30, 2016.

In January 2016, we prepaid, at par plus accrued interest, a $6,115 mortgage note secured by one of our properties with a maturity date in April 2016 and an annual interest rate of 5.97%. In April 2016, we prepaid, at par plus accrued interest, an $18,000 mortgage note secured by one of our properties with a maturity date in July 2016 and an annual interest rate of 4.65%. In July 2016, we prepaid, at par plus accrued interest, an $11,871 mortgage note secured by one of our properties with a maturity date in November 2016 and an annual interest rate of 6.25%. In September 2016, we prepaid, at par plus accrued interest, two mortgage notes secured by two properties with an aggregate principal balance of $79,957, maturity dates in November 2016 and a weighted average annual interest rate of 5.92%. In October 2016, we prepaid, at par plus prepayment premiums and accrued interest, mortgage notes secured by eight properties with an aggregate principal balance of $42,542, maturity dates in May 2017 and a weighted average annual interest rate of 6.54%.  Also in October 2016, we gave notice of our intention to prepay, at par plus accrued interest, one mortgage note secured by one of our properties with an outstanding principal balance of approximately $5,428, a maturity date in March 2017 and an annual interest rate of 5.86%; we expect to make this prepayment in December 2016.

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Shareholders' Equity

9 Months Ended

Sep. 30, 2016

Stockholders' Equity Note [Abstract]

Shareholders' Equity

Shareholders’ Equity

Distributions:

On February 23, 2016, we paid a regular quarterly distribution to common shareholders of $0.39 per share, or approximately $92,614, that was declared on January 11, 2016 and was payable to shareholders of record on January 22, 2016. On May 19, 2016, we paid a regular quarterly distribution to common shareholders of $0.39 per share, or approximately $92,614, that was declared on April 13, 2016 and was payable to shareholders of record on April 25, 2016. On August 18, 2016, we paid a regular quarterly distribution to common shareholders of $0.39 per share, or approximately $92,619, that was declared on July 12, 2016 and was payable to shareholders of record on July 22, 2016. On October 11, 2016, we declared a regular quarterly distribution payable to common shareholders of record on October 21, 2016 of $0.39 per share, or approximately $92,643. We expect to pay this distribution on or about November 17, 2016.

Share Issuances and Purchases:

On May 18, 2016, we granted 2,500 of our common shares, valued at $18.26 per share, the closing price of our common shares on the New York Stock Exchange (where our common shares were then listed) on that day, to each of our five Trustees as part of their annual compensation.

On September 15, 2016, pursuant to our equity compensation plan, we granted an aggregate of 79,650 of our common shares to our officers and certain other employees of our manager, RMR LLC, valued at $21.64 per share, the closing price of our common shares on The NASDAQ Stock Market LLC, or the Nasdaq, on that day.

On September 26, 2016, we purchased an aggregate of 17,667 of our common shares valued at $23.53 per common share, the closing price of our common shares on the Nasdaq on that day, from certain employees of RMR LLC in satisfaction of tax withholding and payment obligations in connection with the vesting of awards of our common shares.

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Fair Value of Assets and Liabilities

9 Months Ended

Sep. 30, 2016

Fair Value Disclosures [Abstract]

Fair Value of Assets and Liabilities

Fair Value of Assets and Liabilities

The table below presents certain of our assets measured at fair value at September 30, 2016, categorized by the level of inputs as defined in the fair value hierarchy under GAAP, used in the valuation of each asset: 

							Significant
	Total as of		Quoted Prices in Active		Significant Other		Unobservable
	September 30,		Markets for Identical		Observable Inputs		Inputs
Description	2016		Assets (Level 1)		(Level 2)		(Level 3)
Recurring Fair Value Measurements
Assets:
Investments in available for sale securities (1)	$	108,152	$	108,152	$	—	$	—
Non-Recurring Fair Value Measurements
Assets:
Assets held for sale (2)	$	3,627	$	—	$	—	$	3,627

(1) Our investments in available for sale securities include our 4,235,000 common shares of Five Star and our 2,637,408 shares of RMR Inc. class A common stock. The fair values of these shares are based upon quoted prices at September 30, 2016 in active markets (Level 1 inputs). Our historical cost basis for our Five Star and RMR Inc. shares is $14,230 and $69,826, respectively, as of September 30, 2016. The unrealized loss of $6,141 for our Five Star shares and the unrealized gain of $30,237 for our RMR Inc. shares as of September 30, 2016 are included in cumulative other comprehensive income (loss) in our condensed consolidated balance sheets. We evaluated the decline in the fair value of the Five Star shares and determined that based on the severity and duration of the decline, and our ability and intent to hold these investments for a reasonable period of time sufficient for a recovery of fair value, we do not consider these investments to be other-than-temporarily impaired at September 30, 2016.

(2) Assets held for sale consist of two properties held for sale as of September 30, 2016. These properties are recorded at their estimated fair values less costs to sell. We used offers from third parties to purchase these properties and our knowledge of local real estate markets to determine their fair values as of September 30, 2016. See Note 3 for further information regarding these properties.

In addition to the assets described in the table above, our financial instruments at September 30, 2016 and December 31, 2015 included cash and cash equivalents, restricted cash, other assets, our revolving credit facility, term loans, senior unsecured notes, secured debt and capital leases and other unsecured obligations and liabilities. The fair values of these financial instruments approximated their carrying values in our condensed consolidated financial statements as of such dates, except as follows: 

	As of September 30, 2016				As of December 31, 2015
Description	Carrying Amount(1)		Estimated Fair Value		Carrying Amount(1)		Estimated Fair Value
Senior unsecured notes	$	1,722,032	$	1,830,935	$	1,478,536	$	1,548,613
Secured debt and capital leases(2)	1,168,827		1,195,240		679,295		724,615
	$	2,890,859	$	3,026,175	$	2,157,831	$	2,273,228

(1) Includes unamortized debt issuance costs, premiums and discounts.

(2) We assumed certain of these secured debts in connection with our acquisitions of certain properties. We recorded the assumed mortgage debts at estimated fair value on the date of acquisition and we are amortizing the fair value adjustments, if any, to interest expense over the respective terms of the mortgage debts to reduce interest expense to the estimated market interest rates as of the date of acquisition.

We estimate the fair values of our senior unsecured notes using an average of the bid and ask price on or about September 30, 2016 of our six outstanding issuances of senior unsecured notes (Level 2 inputs as defined in the fair value hierarchy under GAAP).  We estimate the fair values of our secured debts by using discounted cash flows analyses and currently prevailing market terms as of the measurement date (Level 3 inputs as defined as defined in the fair value hierarchy under GAAP). Because Level 3 inputs are unobservable, our estimated fair value may differ materially from the actual fair value.

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Segment Reporting

9 Months Ended

Sep. 30, 2016

Segment Reporting [Abstract]

Segment Reporting

Segment Reporting

As of September 30, 2016, we have four operating segments, of which three are separate reporting segments. The first reporting segment includes triple net senior living communities that provide short term and long term residential care and other services for residents. The second reporting segment includes managed senior living communities that provide short term and long term residential care and other services for residents. The third reporting segment includes MOBs. Our fourth segment includes all of our other operations, including certain properties that offer wellness, fitness and spa services to members, which we do not consider to be sufficiently material to constitute a separate reporting segment.

	For the Three Months Ended September 30, 2016
	Triple Net
	Leased			Managed
	Senior Living			Senior Living						All Other
	Communities			Communities			MOBs			Operations			Consolidated
Revenues:
Rental income	$	66,520		$	—		$	94,404		$	4,579		$	165,503
Residents fees and services	—			98,480			—			—			98,480
Total revenues	66,520			98,480			94,404			4,579			263,983
Expenses:
Property operating expenses	47			74,763			28,537			—			103,347
Depreciation and amortization	19,727			20,747			30,922			948			72,344
General and administrative	—			—			—			12,107			12,107
Acquisition and certain other transaction related costs	—			—			—			824			824
Impairment of assets	2,191			2,394			(7		)	—			4,578
Total expenses	21,965			97,904			59,452			13,879			193,200
Operating income (loss)	44,555			576			34,952			(9,300		)	70,783
Dividend income	—			—			—			659			659
Interest and other income	—			—			—			89			89
Interest expense	(6,228		)	(2,104		)	(5,599		)	(29,507		)	(43,438		)
Loss on early extinguishment of debt	—			(84		)	—			—			(84		)
Income (loss) from continuing operations before income tax expense and equity in earnings of an investee	38,327			(1,612		)	29,353			(38,059		)	28,009
Income tax expense	—			—			—			(119		)	(119		)
Equity in earnings of an investee	—			—			—			13			13
Net income (loss)	$	38,327		$	(1,612	)	$	29,353		$	(38,165	)	27,903
	As of September 30, 2016
	Triple Net
	Leased			Managed
	Senior Living			Senior Living						All Other
	Communities			Communities			MOBs			Operations			Consolidated
Total assets	$	2,281,420		$	1,272,441		$	3,343,492		$	332,745		$	7,230,098

	For the Three Months Ended September 30, 2015
	Triple Net
	Leased			Managed
	Senior Living			Senior Living						All Other
	Communities			Communities			MOBs			Operations			Consolidated
Revenues:
Rental income	$	64,222		$	—		$	90,072		$	4,569		$	158,863
Residents fees and services	—			96,412			—			—			96,412
Total revenues	64,222			96,412			90,072			4,569			255,275
Expenses:
Property operating expenses	—			71,983			24,944			—			96,927
Depreciation and amortization	19,140			19,248			30,680			948			70,016
General and administrative	—			—			—			10,316			10,316
Acquisition and certain other transaction related costs	—			—			—			742			742
Impairment of assets	(98		)	—			—			—			(98		)
Total expenses	19,042			91,231			55,624			12,006			177,903
Operating income (loss)	45,180			5,181			34,448			(7,437		)	77,372
Interest and other income	—			—			—			57			57
Interest expense	(6,342		)	(2,705		)	(1,707		)	(28,235		)	(38,989		)
Loss on early extinguishment of debt	—			—			—			(21		)	(21		)
Income (loss) from continuing operations before income tax expense and equity in losses of an investee	38,838			2,476			32,741			(35,636		)	38,419
Income tax expense	—			—			—			(146		)	(146		)
Equity in losses of an investee	—			—			—			(24		)	(24		)
Net income (loss)	$	38,838		$	2,476		$	32,741		$	(35,806	)	$	38,249
	As of December 31, 2015
	Triple Net
	Leased			Managed
	Senior Living			Senior Living						All Other
	Communities			Communities			MOBs			Operations			Consolidated
Total assets	$	2,251,212		$	1,260,425		$	3,362,214		$	286,239		$	7,160,090

	For the Nine Months Ended September 30, 2016
	Triple Net
	Leased			Managed
	Senior Living			Senior Living						All Other
	Communities			Communities			MOBs			Operations			Consolidated
Revenues:
Rental income	$	198,269		$	—		$	278,964		$	13,689		$	490,922
Residents fees and services	—			292,803			—			—			292,803
Total revenues	198,269			292,803			278,964			13,689			783,725
Expenses:
Property operating expenses	833			218,582			79,361			—			298,776
Depreciation and amortization	58,401			60,905			92,788			2,844			214,938
General and administrative	—			—			—			34,931			34,931
Acquisition and certain other transaction related costs	—			—			—			1,443			1,443
Impairment of assets	6,583			2,394			7,953			—			16,930
Total expenses	65,817			281,881			180,102			39,218			567,018
Operating income (loss)	132,452			10,922			98,862			(25,529		)	216,707
Dividend income	—			—			—			1,449			1,449
Interest and other income	—			—			—			330			330
Interest expense	(18,892		)	(7,332		)	(7,398		)	(90,215		)	(123,837		)
Loss on early extinguishment of debt	—			(90		)	—			—			(90		)
Income (loss) from continuing operations before income tax expense and equity in earnings of an investee	113,560			3,500			91,464			(113,965		)	94,559
Income tax expense	—			—			—			(318		)	(318		)
Equity in earnings of an investee	—			—			—			107			107
Income (loss) before gain on sale of properties	113,560			3,500			91,464			(114,176		)	94,348
Gain on sale of properties	4,061			—			—			—			4,061
Net income (loss)	$	117,621		$	3,500		$	91,464		$	(114,176	)	$	98,409
	As of September 30, 2016
	Triple Net
	Leased			Managed
	Senior Living			Senior Living						All Other
	Communities			Communities			MOBs			Operations			Consolidated
Total assets	$	2,281,420		$	1,272,441		$	3,343,492		$	332,745		$	7,230,098

	For the Nine Months Ended September 30, 2015
	Triple Net
	Leased			Managed
	Senior Living			Senior Living						All Other
	Communities			Communities			MOBs			Operations			Consolidated
Revenues:
Rental income	$	180,820		$	—		$	265,664		$	13,709		$	460,193
Residents fees and services	—			271,061			—			—			271,061
Total revenues	180,820			271,061			265,664			13,709			731,254
Expenses:
Property operating expenses	—			204,178			72,135			—			276,313
Depreciation and amortization	51,322			41,357			90,711			2,844			186,234
General and administrative	—			—			—			32,563			32,563
Acquisition and certain other transaction related costs	—			—			—			6,517			6,517
Impairment of assets	(98		)	—			—			—			(98		)
Total expenses	51,224			245,535			162,846			41,924			501,529
Operating income (loss)	129,596			25,526			102,818			(28,215		)	229,725
Interest and other income	—			—			—			274			274
Interest expense	(18,598		)	(7,285		)	(5,232		)	(81,723		)	(112,838		)
Loss on early extinguishment of debt	(6		)	(33		)	—			(1,430		)	(1,469		)
Income (loss) from continuing operations before income tax expense and equity in earnings of an investee	110,992			18,208			97,586			(111,094		)	115,692
Income tax expense	—			—			—			(385		)	(385		)
Equity in earnings of an investee	—			—			—			70			70
Income (loss) from continuing operations	110,992			18,208			97,586			(111,409		)	115,377
Discontinued operations:
Loss from discontinued operations	—			—			(350		)	—			(350		)
Impairment of assets from discontinued operations	—			—			(602		)	—			(602		)
Net income (loss)	$	110,992		$	18,208		$	96,634		$	(111,409	)	$	114,425
	As of December 31, 2015
	Triple Net
	Leased			Managed
	Senior Living			Senior Living						All Other
	Communities			Communities			MOBs			Operations			Consolidated
Total assets	$	2,251,212		$	1,260,425		$	3,362,214		$	286,239		$	7,160,090

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Significant Tenant

9 Months Ended

Sep. 30, 2016

Risks and Uncertainties [Abstract]

Significant Tenant

Significant Tenant

Five Star is our most significant tenant.  Rental income from Five Star represented 19.1% of our total revenues for the three months ended September 30, 2016, and the properties Five Star leases from us represented 29.7% of our real estate investments, at cost, as of September 30, 2016.  As of September 30, 2016, Five Star also managed 63 senior living communities for our account. See Note 10 for further information relating to our leases and management arrangements with Five Star.

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Related Person Transactions

9 Months Ended

Sep. 30, 2016

Related Party Transactions [Abstract]

Related Person Transactions

Related Person Transactions

We have relationships and historical and continuing transactions with Five Star, RMR LLC and others related to them, including other companies to which RMR LLC provides management services and which have trustees, directors and officers who are also our Trustees or officers.  For further information about these and other such relationships and certain other related person transactions, please refer to our Annual Report.

Five Star:  Five Star was our 100% owned subsidiary until we distributed its common shares to our shareholders in 2001.  We are currently Five Star’s largest stockholder.  As of September 30, 2016, we owned 4,235,000 of Five Star’s common shares, or approximately 8.6% of Five Star’s outstanding common shares.  Five Star is our largest tenant and a manager of certain of our senior living communities.

Our investment in Five Star common shares, which is included in other assets in our condensed consolidated balance sheets, is recorded at fair value, with the related unrealized gain (loss) included in cumulative other comprehensive income (loss) in our condensed consolidated balance sheets. We recognize the increase or decrease in the fair value of our Five Star common shares each reporting period as unrealized gain or loss on investment in available for sale securities which is a component of other comprehensive income (loss) in our condensed consolidated statements of comprehensive income. For further information, see Notes 4 and 7.

On June 29, 2016, we entered into a transaction agreement, or the Transaction Agreement, and related agreements, or, collectively, the Transaction Documents, with Five Star.  Pursuant to the Transaction Documents, among other things, on June 29, 2016, we and Five Star completed a sale and leaseback transaction with respect to certain senior living communities owned by Five Star and amended the pooling arrangements related to Five Star’s management of certain senior living communities we own.  Significant terms of the Transaction Documents are summarized below.

• Pursuant to the Transaction Agreement, we purchased seven senior living communities from Five Star for an aggregate purchase price of $112,350, and we and Five Star simultaneously entered into a new long term lease agreement, or the New Lease, whereby we have leased those seven senior living communities to Five Star.

• Pursuant to the New Lease, Five Star is required to pay initial annual rent of $8,426, plus, beginning in 2018, percentage rent equal to 4% of the amount by which gross revenues, as defined in the New Lease, of each community exceeds gross revenues of such community in 2017.  The initial term of the New Lease expires on December 31, 2028 and Five Star has options to extend the term of the New Lease for two consecutive 15-year terms.  Pursuant to the New Lease, Five Star may request that we purchase certain improvements to the communities in return for rent increases in accordance with the formula specified in the New Lease; however, we are not obligated to purchase such improvements and Five Star is not required to sell them to us.  Pursuant to the Transaction Agreement, we have the right, in connection with a financing or other capital raising transaction, to reassign one or more of the communities covered by the New Lease to another existing or new long term lease agreement between us and Five Star.  Other terms of the New Lease are substantially similar to those of our other four preexisting long term leases with Five Star, such terms being described in our Annual Report, which descriptions are incorporated herein by reference.

• Pursuant to the Transaction Agreement, our three then existing pooling agreements with Five Star that combined for certain purposes certain of our management agreements with Five Star for senior living communities that include assisted living units, or AL Management Agreements, were terminated and we entered into 10 new pooling agreements with Five Star, or the New Pooling Agreements.  Nine of the New Pooling Agreements combine six AL Management Agreements and one of the New Pooling Agreements currently combines five AL Management Agreements.  Each New Pooling Agreement combines various calculations of revenues and expenses from the operations of the applicable communities covered by each New Pooling Agreement.

• Pursuant to the New Pooling Agreements, the AL Management Agreements covered by each New Pooling Agreement generally provide Five Star with a management fee equal to either 3% or 5% of the gross revenues realized at such communities plus reimbursement for its direct costs and expenses related to such communities, as well as an annual incentive fee equal to either 35% or 20% of the annual net operating income of such communities remaining after we realize an annual minimum return equal to either 8% or 7% of our invested capital, or, in the case of nine communities, a specified amount plus 7% of our invested capital since December 31, 2015.  The calculations of Five Star’s fees and of our annual minimum return related to any AL Management Agreement that became effective before May 2015 and had been pooled under one of the previously existing pooling agreements are generally the same as they were under the previously existing pooling agreements.  However, with respect to certain communities, our annual minimum return was reduced to 7%, and also, with respect to the nine communities referenced above, our annual minimum return was reset as of 2016 to specified amounts.  With regard to AL Management Agreements that became effective from and after May 2015, the management fee was changed to 5%, rather than the prior 3%, of the gross revenues realized at the applicable community, and the incentive fee was changed to 20%, rather than the prior 35%, of the annual net operating income of the applicable community remaining, in all cases after we realize our requisite annual minimum return.  Pursuant to the New Pooling Agreements, we will pay Five Star a fee for its management of capital expenditure projects equal to 3% of amounts funded by us.

• The terms of the AL Management Agreements covered by the New Pooling Agreements expire between 2030 and 2039 and are subject to automatic renewals, unless earlier terminated or timely notices of nonrenewal are delivered.  The right that we and Five Star each had under the AL Management Agreements that became effective from and after May 1, 2015 to terminate each such AL Management Agreement as of December 31, 2016 was eliminated pursuant to the applicable New Pooling Agreement.  Five Star has a limited right under the AL Management Agreements to require underperforming communities to be sold, and we have the right to terminate all the AL Management Agreements subject to a New Pooling Agreement if we do not receive our annual minimum return under such New Pooling Agreement in each of three consecutive years, commencing with calendar year 2016, subject to certain Five Star cure rights.

• The New Pooling Agreements collectively combine all AL Management Agreements except for the management agreement related to one assisted living community located in New York and the management agreement related to one assisted living community located in California, and, other than as described below, the terms of those management agreements were not amended as part of the transactions implemented by the Transaction Documents.  The terms of our existing pooling agreement with Five Star that combines our management agreements with Five Star for senior living communities that include only independent living units, and the terms of those management agreements, also were not amended as part of the transactions implemented by the Transaction Documents.

• Pursuant to the Transaction Agreement, we and Five Star amended the management agreement for one California community so that the calculation of our annual minimum return under that agreement is fixed at $3,610 plus 7% of any amount funded by us for capital expenditures at this community since December 31, 2015.

Because of the continuing relationships between us and Five Star, the terms of the Transaction Documents were negotiated and approved by special committees of our Board of Trustees and Five Star’s board of directors composed solely of our Independent Trustees and Five Star’s independent directors who are not also Trustees or directors of the other party, which committees were represented by separate counsel.

In September 2016, we acquired for $130 an additional living unit at a senior living community located in Florida that we lease to Five Star. This living unit was added to the applicable lease and Five Star’s annual rent payable to us increased by $10 in accordance with the terms of that lease.

In September 2016, we and Five Star sold a vacant SNF located in Wisconsin that we leased to Five Star for $248, and as a result of this sale, Five Star’s annual rent payable to us decreased by $25 in accordance with the terms of the applicable lease.

As of September 30, 2016 and 2015, we leased 183 and 178 senior living communities to Five Star, respectively.  We recognized total rental income from Five Star of $50,417 and $47,828 for the three months ended September 30, 2016 and 2015, respectively, and $146,758 and $143,271 for the nine months ended September 30, 2016 and 2015, respectively.  These amounts exclude estimated percentage rent payments we received from Five Star of $1,367 and $1,371 for the three months ended September 30, 2016 and 2015, respectively, and $4,228 and $4,194 for the nine months ended September 30, 2016 and 2015, respectively.  We determine actual percentage rent due under our Five Star leases annually and recognize any resulting amount as rental income at year end when all contingencies are met.  As of September 30, 2016 and December 31, 2015, we had rents receivable from Five Star of $16,831 and $17,466, respectively.  Those amounts are included in other assets in our condensed consolidated balance sheets.

Pursuant to the terms of our leases with Five Star, we funded $3,470 and $7,523 for the three months ended September 30, 2016 and 2015, respectively, and $15,306 and $16,425 for the nine months ended September 30, 2016 and 2015, respectively, of improvements to communities leased to Five Star. As a result, the annual rent payable to us by Five Star increased by approximately $279 and $604 for the three months ended September 30, 2016 and 2015, respectively, and $1,228 and $1,322, for the nine months ended September 30, 2016 and 2015, respectively.

Also in September 2016, we agreed to acquire two senior living communities with a combined 126 living units located in Illinois for approximately $18,600, excluding closing costs. If these acquisitions are completed, we expect to lease these communities to Five Star under one of our existing master leases with Five Star. These acquisitions are subject to various conditions; accordingly, we cannot be sure that we will complete these acquisitions and that we will lease them to Five Star, that the acquisitions and lease arrangements will not be delayed or that the terms will not change.

During the nine months ended September 30, 2016, Five Star began managing for our account three senior living communities we own with an aggregate 288 living units.  We acquired one of those communities in May 2016 for a purchase price of approximately $8,400, excluding closing costs, and each of the other two communities had previously been leased to an unrelated third party that defaulted on its lease. The terms under which Five Star is managing these senior living communities are described above.

As of September 30, 2016 and 2015, Five Star managed 63 and 60 senior living communities for our account, respectively.  We incurred management fees payable to Five Star of $3,070 and $2,717 for the three months ended September 30, 2016 and 2015, respectively, and $8,689 and $7,939 for the nine months ended September 30, 2016 and 2015, respectively.  These amounts are included in property operating expenses in our condensed consolidated statements of comprehensive income. In addition, we incurred fees for Five Star's management of capital expenditure projects at our Five Star managed communities of $266 for the three and nine months ended September 30, 2016. These amounts have been capitalized in our condensed consolidated financial statements.

In October 2016, we entered into an agreement to sell a former memory care building at an assisted living community in Florida that Five Star has historically managed for our account for $2,100. If this sale is completed, we expect that our management agreement with Five Star for this community will be terminated. This sale is subject to various conditions; accordingly, we cannot be sure that we will complete the sale or that the management agreement will be terminated, that the sale and termination will not be delayed or that the terms will not change.

In October 2016, Five Star agreed to manage four senior living communities we own located in Georgia with approximately 350 living units. Five Star will manage these senior living communities pursuant to management agreements that will be added to an existing or new pooling agreement with terms consistent with the AL Management Agreements that became effective from and after May 2015 as described above. Five Star's assumption of the management of these communities is subject to conditions and we cannot be sure that those conditions will be satisfied.

D&R Yonkers LLC:  In order to accommodate certain requirements of New York licensing laws, one of our TRSs subleases a part of a senior living community we own that is managed by Five Star to D&R Yonkers LLC.  D&R Yonkers LLC is owned by our President and Chief Operating Officer and Five Star’s chief financial officer and treasurer.  Our transactions and balances with D&R Yonkers LLC are eliminated upon consolidation for accounting purposes and are not separately stated and do not appear in our condensed consolidated financial statements.

RMR LLC:  Pursuant to our business management agreement with RMR LLC, we recognized net business management fees of $9,609 and $8,682 for the three months ended September 30, 2016 and 2015, respectively, and $27,199 and $26,644 for the nine months ended September 30, 2016 and 2015, respectively.  The net business management fees we recognized for the 2016 and 2015 periods are included in general and administrative expenses in our condensed consolidated statements of comprehensive income.

In accordance with the terms of our business management agreement, we issued 68,983 of our common shares to RMR LLC for the period from January 1, 2015 through May 31, 2015 as payment for a part of the business management fee we recognized for that period.  Beginning June 1, 2015, all management fees under our business management agreement are paid in cash.

Pursuant to our property management agreement with RMR LLC, we recognized aggregate net property management and construction supervision fees of $2,961 and $2,533 for the three months ended September 30, 2016 and 2015, respectively, and $8,193 and $7,554 for the nine months ended September 30, 2016 and 2015, respectively.  These amounts are included in property operating expenses or have been capitalized, as appropriate, in our condensed consolidated financial statements.

We are generally responsible for all of our operating expenses, including certain expenses incurred by RMR LLC on our behalf.  Our property level operating expenses are generally incorporated into rents charged to our tenants, including certain payroll and related costs incurred by RMR LLC.  We reimbursed RMR LLC $2,482 and $1,954 for property management related expenses for the three months ended September 30, 2016 and 2015, respectively, and $6,781 and $5,189 for the nine months ended September 30, 2016 and 2015, respectively.  These amounts are included in property operating expenses in our condensed consolidated statements of comprehensive income.

We have historically awarded share grants to certain RMR LLC employees under our equity compensation plans.  In September 2016 and 2015, we awarded annual share grants of 79,650 and 84,000 of our common shares, respectively, to our officers and to other employees of RMR LLC. In September 2016, we purchased 17,667 of our common shares, at the closing price of our common shares on the Nasdaq on the date of purchase, from certain employees of RMR LLC in satisfaction of tax withholding and payment obligations in connection with the vesting of awards of our common shares. In addition, under our business management agreement we reimburse RMR LLC for our allocable costs for internal audit services.  The amounts recognized as expense for share grants to RMR LLC employees and internal audit costs were $901 and $302 for the three months ended September 30, 2016 and 2015, respectively, and $2,075 and $1,337 for the nine months ended September 30, 2016 and 2015, respectively.  These amounts are included in general and administrative expenses in our condensed consolidated statements of comprehensive income.

We lease office space to RMR LLC in certain of our properties for its property management offices.  Pursuant to our lease agreements with RMR LLC, we recognized rental income from RMR LLC for leased office space of $82 and $198 for the three and nine months ended September 30, 2016, respectively, and $51 and $153 for the three and nine months ended September 30, 2015, respectively.

RMR Inc.: In connection with our June 2015 acquisition of shares of class A common stock of RMR Inc., we recorded a liability for the amount by which the estimated fair value of these shares exceeded the price we paid for these shares.  This liability is included in accounts payable and other liabilities in our condensed consolidated balance sheets.  A part of this liability is being amortized on a straight line basis through December 31, 2035 as an allocated reduction to our business management and property management fee expense.  We amortized $943 and $959 of this liability for the three months ended September 30, 2016 and 2015, respectively, and $2,829 and $1,202 of this liability for the nine months ended September 30, 2016 and 2015, respectively.  These amounts are included in the net business management and property management fee amounts for such periods.  As of September 30, 2016, the remaining unamortized amount of this liability was $72,876.

As of September 30, 2016, we owned 2,637,408 shares of class A common stock of RMR Inc.  We receive dividends on our RMR Inc. class A common shares as declared and paid by RMR Inc. to all holders of its class A common shares.  We received a dividend of $789 on our RMR Inc. class A common shares during the three months ended June 30, 2016, which was for the period from December 14, 2015 through March 31, 2016.  We received a dividend of $659 on our RMR Inc. class A common shares during the three months ended September 30, 2016, which was for the period from April 1, 2016 through June 30, 2016. On October 11, 2016, RMR Inc. declared a regular quarterly dividend of $0.25 per class A common share payable to shareholders of record on October 21, 2016.  RMR Inc. has stated that it expects to pay this dividend on or about November17, 2016.

Our investment in RMR Inc. class A common shares is included in other assets in our condensed consolidated balance sheets and is recorded at fair value, with the related unrealized gain (loss) included in cumulative other comprehensive income (loss) in our condensed consolidated balance sheets. We recognize the increase or decrease in the fair value of our RMR Inc. class A common shares each reporting period as unrealized gain or loss on investment in available for sale securities which is a component of other comprehensive income (loss) in our condensed consolidated statements of comprehensive income. For further information, see Notes 4 and 7.

ABP Trust: ABP Trust is the indirect controlling shareholder of RMR LLC and is owned by our Managing Trustees, Barry M. Portnoy and Adam D. Portnoy. On October 2, 2016, in connection with the proposed commencement of a partial tender offer by a subsidiary of ABP Trust, or the Purchaser, of up to 10,000,000 shares of common stock of Five Star at a price of $3.00 per share, or the Offer, we entered into a Consent Agreement with the Purchaser, ABP Trust, Adam D. Portnoy and Barry M. Portnoy, or the Requesting Parties. Pursuant to the Consent Agreement, we consented to Five Star’s granting of certain exceptions to the ownership restrictions set forth in its charter to the Requesting Parties, and waived any default under our leases, management and other agreements with Five Star arising or resulting from the Offer. The Consent Agreement provides certain conditions to the effectiveness of our consent and waiver, including that the Requesting Parties enter into a Consent, Standstill, Registration Rights and Lock-Up Agreement with Five Star in a form satisfactory to us, and that all conditions to the effectiveness of that agreement be satisfied. The Requesting Parties entered into that agreement on October 2, 2016. On October 6, 2016, the Purchaser commenced the Offer, and on October 27, 2016, the Purchaser amended the Offer to increase the number of shares of common stock of Five Star that it is offering to purchase from 10,000,000 to 18,000,000. Because of the continuing relationships among us and ABP Trust and its affiliates, the terms of the Consent Agreement were negotiated and approved by a special committee of our Board of Trustees composed solely of our Independent Trustees and which special committee was represented by separate counsel, and also were approved by our Independent Trustees and our Board of Trustees (with Barry M. Portnoy and Adam D. Portnoy abstaining), voting separately. For additional information related to the Consent Agreement, please refer to our Current Report on Form 8-K dated October 2, 2016.

AIC:  We and six other companies to which RMR LLC provides management services each own Affiliates Insurance Company, or AIC, in equal amounts.  We and the other AIC shareholders participate in a combined property insurance program arranged and reinsured in part by AIC. We paid aggregate annual premiums, including taxes and fees, of approximately $3,607 in connection with this insurance program for the policy year ending June 30, 2017, which amount may be adjusted from time to time as we acquire and dispose of properties that are included in this insurance program.

As of September 30, 2016 and December 31, 2015, our investment in AIC had a carrying value of $7,110 and $6,827, respectively.  These amounts are included in other assets in our condensed consolidated balance sheets.  We recognized income (loss) of $13 and $(24) related to our investment in AIC for the three months ended September 30, 2016 and 2015, respectively, and $107 and $70 for the nine months ended September 30, 2016 and 2015, respectively.  Our other comprehensive income includes our proportionate part of unrealized gains (losses) on securities which are owned by AIC of $80 and $(72) for the three months ended September 30, 2016 and 2015, respectively, and $175 and $(91) for the nine months ended September 30, 2016 and 2015, respectively.

Directors’ and Officers’ Liability Insurance: We, RMR Inc., RMR LLC and certain companies to which RMR LLC provides management services participate in a combined directors’ and officers’ liability insurance policy. In September 2016, we participated in a one year extension of this combined directors’ and officers’ insurance policy through September 2018. Our premium for this policy extension was approximately $142.

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Income Taxes

9 Months Ended

Sep. 30, 2016

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

We have elected to be taxed as a real estate investment trust, or REIT, under the Internal Revenue Code of 1986, as amended, and as such, are generally not subject to federal and most state income taxation on our operating income provided we distribute our taxable income to our shareholders and meet certain organization and operating requirements. We do, however, lease certain managed senior living communities to our wholly owned TRSs that, unlike most of our subsidiaries, file a separate consolidated federal corporate income tax return and are subject to federal and state income taxes.  Our consolidated income tax provision includes the income tax provision related to the operations of our TRSs and certain state income taxes we incur despite our taxation as a REIT.  During the three months ended September 30, 2016 and 2015, we recognized income tax expense of $119 and $146, respectively. During the nine months ended September 30, 2016 and 2015, we recognized income tax expense of $318 and $385, respectively.

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Weighted Average Common Shares

9 Months Ended

Sep. 30, 2016

Earnings Per Share [Abstract]

Weighted Average Common Shares

Weighted Average Common Shares

The following table provides a reconciliation of the weighted average number of common shares used in the calculation of basic and diluted earnings per share (in thousands): 

	Three Months Ended September 30,		Nine Months Ended September 30,
	2016	2015	2016	2015
Weighted average common shares for basic earnings per share	237,347	237,263	237,329	231,454
Effect of dilutive securities: unvested share awards	49	30	40	32
Weighted average common shares for diluted earnings per share	237,396	237,293	237,369	231,486

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Recent Accounting Pronouncements (Policies)

9 Months Ended

Sep. 30, 2016

New Accounting Pronouncements and Changes in Accounting Principles [Abstract]

Recent Accounting Pronouncements, Policy

Recent Accounting Pronouncements

On January 1, 2016, we adopted the Financial Accounting Standards Board, or FASB, Accounting Standards Update, or ASU, No. 2015-02, Consolidation. Among other things, this update changed how an entity determines the primary beneficiary of a variable interest entity. The implementation of this update did not have an impact in our condensed consolidated financial statements.

On January 1, 2016, we adopted FASB ASU No. 2015-03, Simplifying the Presentation of Debt Issuance Costs, which requires debt issuance costs to be presented in the balance sheet as a direct deduction from the associated debt liability, and ASU No. 2015-15, Presentation and Subsequent Measurement of Debt Issuance Costs Associated with Line-of-Credit Arrangements – Amendments to SEC Paragraphs Pursuant to Staff Announcement at June 18, 2015 EITF Meeting, which addresses the presentation of debt issuance costs related to line of credit arrangements. The implementation of these updates resulted in the reclassification of certain of our capitalized debt issuance costs as an offset to the associated debt liability in our condensed consolidated balance sheets. The classification of capitalized debt issuance costs related to our unsecured revolving credit facility remains unchanged in accordance with ASU No. 2015-15. As of December 31, 2015, debt issuance costs related to our unsecured term loans, senior unsecured notes and secured debt and capital leases of $3,695, $16,530 and $3,664, respectively, were reclassified from assets to an offset to the associated debt liability in our condensed consolidated balance sheets.

On January 1, 2016, we adopted FASB ASU No. 2015-16, Simplifying the Accounting for Measurement-Period Adjustments, which eliminates the requirement for an acquirer in a business combination to account for measurement period adjustments retrospectively. Instead, acquirers must recognize measurement period adjustments during the period in which they determine the amounts, including the effect on earnings of any amounts they would have recorded in previous periods if the accounting had been completed at the acquisition date. The implementation of this update did not have an impact in our condensed consolidated financial statements.

In January 2016, the FASB issued ASU No. 2016-01, Recognition and Measurement of Financial Assets and Financial Liabilities, which changes how entities measure certain equity investments and present changes in the fair value of financial liabilities measured under the fair value option that are attributable to their own credit. This update is effective for interim and annual periods beginning after December 15, 2017, with early adoption permitted subject to certain conditions. Currently, changes in fair value of these investments are recorded through other comprehensive income. Under this ASU, these changes will be recorded through earnings. We are continuing to evaluate this guidance, but we expect the implementation of this guidance will affect how changes in the fair value of available for sale securities we hold are presented in our condensed consolidated financial statements.

In February 2016, the FASB issued ASU No. 2016-02, Leases, which sets out the principles for the recognition, measurement, presentation and disclosure of leases for both parties to a contract (i.e., lessees and lessors). ASU No. 2016-02 requires lessees to apply a dual approach, classifying leases as either finance or operating leases based on the principle of whether or not the lease is effectively a financed purchase of the leased asset by the lessee. This classification will determine whether the lease expense is recognized based on an effective interest method or on a straight line basis over the term of the lease. A lessee is also required to record a right of use asset and a lease liability for all leases with a term of greater than 12 months regardless of their classification. Leases with a term of 12 months or less will be accounted for similar to existing guidance for operating leases today. The new standard requires lessors to account for leases using an approach that is substantially equivalent to existing guidance for sales type leases, direct financing leases and operating leases. ASU No. 2016-02 is effective for reporting periods beginning after December 15, 2018, with early adoption permitted. We are currently assessing the potential impact the adoption of ASU No. 2016-02 will have in our condensed consolidated financial statements.

In March 2016, the FASB issued ASU No. 2016-09, Compensation – Stock Compensation, which identifies areas for simplification involving several aspects of accounting for share based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, an option to recognize gross stock compensation expense with actual forfeitures recognized as they occur, as well as certain classifications on the statement of cash flows. ASU No. 2016-09 is effective for reporting periods beginning after December 15, 2016.  We are currently assessing the potential impact that the adoption of ASU No. 2016-09 will have in our condensed consolidated financial statements.

In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, which requires that entities use a new forward looking “expected loss” model that generally will result in the earlier recognition of allowance for credit losses. The measurement of expected credit losses is based upon historical experience, current conditions, and reasonable and supportable forecasts that affect the collectability of the reported amount. ASU No. 2016-13 is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. We are currently assessing the potential impact that adoption of ASU No. 2016-13 will have in our condensed consolidated financial statements.

In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments, which clarifies how companies present and classify certain cash receipts and cash payments in the statement of cash flows. ASU No. 2016-15 is effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. We are currently assessing the potential impact that adoption of ASU No. 2016-15 will have in our condensed consolidated financial statements.

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Real Estate Properties (Tables)

9 Months Ended

Sep. 30, 2016

MOBs

Real Estate Properties

Schedule of real estate property acquisition

We accounted for this acquisition as an asset acquisition, and the preliminary allocation of the purchase price is as follows:

Cash Paid

Number

plus

Premium

of

Units /

Assumed

Buildings and

Assumed

on Assumed

Date

Location

Properties

Beds

Debt(1)

Land

Improvements

FF&E

Debt

Debt

Jun-16

4 states

7

545

$

112,493

$

11,085

$

94,940

$

6,468

$

—

$

—

(1) This amount includes the cash we paid as well as various closing settlement adjustments and closing costs. 

Triple Net Leased Senior Living Communities

Real Estate Properties

Schedule of real estate property acquisition

The preliminary allocation of the purchase price for this acquisition is as follows:

Cash Paid

Number

plus

Acquired

Premium

of

Units /

Assumed

Buildings and

Real Estate

Assumed

on Assumed

Date

Location

Properties

Beds

Debt(1)

Land

Improvements

FF&E

Leases

Debt

Debt

May-16

Georgia

1

38

$

8,400

$

327

$

6,195

$

478

$

1,400

$

—

$

—

(1) This amount includes the cash we paid as well as various closing settlement adjustments and excludes closing costs. 

Managed senior living communities

Real Estate Properties

Schedule of real estate property acquisition

The preliminary allocations of the purchase prices for these acquisitions are as follows:

					Cash Paid								Acquired
		Number	Number		plus						Acquired		Real Estate					Premium
		of	of	Square	Assumed				Buildings and		Real Estate		Lease			Assumed		on Assumed
Date	Location	Properties	Buildings	Feet (000’s)	Debt (1)		Land		Improvements		Leases(2)		Obligations(2)			Debt		Debt
Feb-16	Minnesota	1	3	128	$	22,700	$	4,074	$	15,223	$	5,163	$	(1,760	)	$	—	$	—
May-16	Florida	1	1	166	45,230		2,792		42,438		—		—			—		—
		2	4	294	$	67,930	$	6,866	$	57,661	$	5,163	$	(1,760	)	$	—	$	—

(1) With respect to the property located in Minnesota, this amount includes the cash we paid as well as various closing settlement adjustments, and excludes closing costs. With respect to the property located in Florida that is being accounted for as an asset acquisition, this amount includes the cash we paid as well as various closing settlement adjustments and closing costs.

(2) The weighted average amortization periods for acquired lease intangible assets and assumed real estate lease obligations at the time of these acquisitions was 6.4 years and 7.3 years, respectively.

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Fair Value of Assets and Liabilities (Tables)

9 Months Ended

Sep. 30, 2016

Fair Value Disclosures [Abstract]

Assets and liabilities recurring and nonrecurring measured at fair value

The table below presents certain of our assets measured at fair value at September 30, 2016, categorized by the level of inputs as defined in the fair value hierarchy under GAAP, used in the valuation of each asset: 

							Significant
	Total as of		Quoted Prices in Active		Significant Other		Unobservable
	September 30,		Markets for Identical		Observable Inputs		Inputs
Description	2016		Assets (Level 1)		(Level 2)		(Level 3)
Recurring Fair Value Measurements
Assets:
Investments in available for sale securities (1)	$	108,152	$	108,152	$	—	$	—
Non-Recurring Fair Value Measurements
Assets:
Assets held for sale (2)	$	3,627	$	—	$	—	$	3,627

(1) Our investments in available for sale securities include our 4,235,000 common shares of Five Star and our 2,637,408 shares of RMR Inc. class A common stock. The fair values of these shares are based upon quoted prices at September 30, 2016 in active markets (Level 1 inputs). Our historical cost basis for our Five Star and RMR Inc. shares is $14,230 and $69,826, respectively, as of September 30, 2016. The unrealized loss of $6,141 for our Five Star shares and the unrealized gain of $30,237 for our RMR Inc. shares as of September 30, 2016 are included in cumulative other comprehensive income (loss) in our condensed consolidated balance sheets. We evaluated the decline in the fair value of the Five Star shares and determined that based on the severity and duration of the decline, and our ability and intent to hold these investments for a reasonable period of time sufficient for a recovery of fair value, we do not consider these investments to be other-than-temporarily impaired at September 30, 2016.

(2) Assets held for sale consist of two properties held for sale as of September 30, 2016. These properties are recorded at their estimated fair values less costs to sell. We used offers from third parties to purchase these properties and our knowledge of local real estate markets to determine their fair values as of September 30, 2016. See Note 3 for further information regarding these properties.

Schedule of carrying value and fair value of the financial instruments

The fair values of these financial instruments approximated their carrying values in our condensed consolidated financial statements as of such dates, except as follows: 

	As of September 30, 2016				As of December 31, 2015
Description	Carrying Amount(1)		Estimated Fair Value		Carrying Amount(1)		Estimated Fair Value
Senior unsecured notes	$	1,722,032	$	1,830,935	$	1,478,536	$	1,548,613
Secured debt and capital leases(2)	1,168,827		1,195,240		679,295		724,615
	$	2,890,859	$	3,026,175	$	2,157,831	$	2,273,228

(1) Includes unamortized debt issuance costs, premiums and discounts.

(2) We assumed certain of these secured debts in connection with our acquisitions of certain properties. We recorded the assumed mortgage debts at estimated fair value on the date of acquisition and we are amortizing the fair value adjustments, if any, to interest expense over the respective terms of the mortgage debts to reduce interest expense to the estimated market interest rates as of the date of acquisition.

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Segment Reporting (Tables)

9 Months Ended

Sep. 30, 2016

Segment Reporting [Abstract]

Schedule of segment reporting information

	For the Three Months Ended September 30, 2016
	Triple Net
	Leased			Managed
	Senior Living			Senior Living						All Other
	Communities			Communities			MOBs			Operations			Consolidated
Revenues:
Rental income	$	66,520		$	—		$	94,404		$	4,579		$	165,503
Residents fees and services	—			98,480			—			—			98,480
Total revenues	66,520			98,480			94,404			4,579			263,983
Expenses:
Property operating expenses	47			74,763			28,537			—			103,347
Depreciation and amortization	19,727			20,747			30,922			948			72,344
General and administrative	—			—			—			12,107			12,107
Acquisition and certain other transaction related costs	—			—			—			824			824
Impairment of assets	2,191			2,394			(7		)	—			4,578
Total expenses	21,965			97,904			59,452			13,879			193,200
Operating income (loss)	44,555			576			34,952			(9,300		)	70,783
Dividend income	—			—			—			659			659
Interest and other income	—			—			—			89			89
Interest expense	(6,228		)	(2,104		)	(5,599		)	(29,507		)	(43,438		)
Loss on early extinguishment of debt	—			(84		)	—			—			(84		)
Income (loss) from continuing operations before income tax expense and equity in earnings of an investee	38,327			(1,612		)	29,353			(38,059		)	28,009
Income tax expense	—			—			—			(119		)	(119		)
Equity in earnings of an investee	—			—			—			13			13
Net income (loss)	$	38,327		$	(1,612	)	$	29,353		$	(38,165	)	27,903
	As of September 30, 2016
	Triple Net
	Leased			Managed
	Senior Living			Senior Living						All Other
	Communities			Communities			MOBs			Operations			Consolidated
Total assets	$	2,281,420		$	1,272,441		$	3,343,492		$	332,745		$	7,230,098

	For the Three Months Ended September 30, 2015
	Triple Net
	Leased			Managed
	Senior Living			Senior Living						All Other
	Communities			Communities			MOBs			Operations			Consolidated
Revenues:
Rental income	$	64,222		$	—		$	90,072		$	4,569		$	158,863
Residents fees and services	—			96,412			—			—			96,412
Total revenues	64,222			96,412			90,072			4,569			255,275
Expenses:
Property operating expenses	—			71,983			24,944			—			96,927
Depreciation and amortization	19,140			19,248			30,680			948			70,016
General and administrative	—			—			—			10,316			10,316
Acquisition and certain other transaction related costs	—			—			—			742			742
Impairment of assets	(98		)	—			—			—			(98		)
Total expenses	19,042			91,231			55,624			12,006			177,903
Operating income (loss)	45,180			5,181			34,448			(7,437		)	77,372
Interest and other income	—			—			—			57			57
Interest expense	(6,342		)	(2,705		)	(1,707		)	(28,235		)	(38,989		)
Loss on early extinguishment of debt	—			—			—			(21		)	(21		)
Income (loss) from continuing operations before income tax expense and equity in losses of an investee	38,838			2,476			32,741			(35,636		)	38,419
Income tax expense	—			—			—			(146		)	(146		)
Equity in losses of an investee	—			—			—			(24		)	(24		)
Net income (loss)	$	38,838		$	2,476		$	32,741		$	(35,806	)	$	38,249
	As of December 31, 2015
	Triple Net
	Leased			Managed
	Senior Living			Senior Living						All Other
	Communities			Communities			MOBs			Operations			Consolidated
Total assets	$	2,251,212		$	1,260,425		$	3,362,214		$	286,239		$	7,160,090

	For the Nine Months Ended September 30, 2016
	Triple Net
	Leased			Managed
	Senior Living			Senior Living						All Other
	Communities			Communities			MOBs			Operations			Consolidated
Revenues:
Rental income	$	198,269		$	—		$	278,964		$	13,689		$	490,922
Residents fees and services	—			292,803			—			—			292,803
Total revenues	198,269			292,803			278,964			13,689			783,725
Expenses:
Property operating expenses	833			218,582			79,361			—			298,776
Depreciation and amortization	58,401			60,905			92,788			2,844			214,938
General and administrative	—			—			—			34,931			34,931
Acquisition and certain other transaction related costs	—			—			—			1,443			1,443
Impairment of assets	6,583			2,394			7,953			—			16,930
Total expenses	65,817			281,881			180,102			39,218			567,018
Operating income (loss)	132,452			10,922			98,862			(25,529		)	216,707
Dividend income	—			—			—			1,449			1,449
Interest and other income	—			—			—			330			330
Interest expense	(18,892		)	(7,332		)	(7,398		)	(90,215		)	(123,837		)
Loss on early extinguishment of debt	—			(90		)	—			—			(90		)
Income (loss) from continuing operations before income tax expense and equity in earnings of an investee	113,560			3,500			91,464			(113,965		)	94,559
Income tax expense	—			—			—			(318		)	(318		)
Equity in earnings of an investee	—			—			—			107			107
Income (loss) before gain on sale of properties	113,560			3,500			91,464			(114,176		)	94,348
Gain on sale of properties	4,061			—			—			—			4,061
Net income (loss)	$	117,621		$	3,500		$	91,464		$	(114,176	)	$	98,409
	As of September 30, 2016
	Triple Net
	Leased			Managed
	Senior Living			Senior Living						All Other
	Communities			Communities			MOBs			Operations			Consolidated
Total assets	$	2,281,420		$	1,272,441		$	3,343,492		$	332,745		$	7,230,098

	For the Nine Months Ended September 30, 2015
	Triple Net
	Leased			Managed
	Senior Living			Senior Living						All Other
	Communities			Communities			MOBs			Operations			Consolidated
Revenues:
Rental income	$	180,820		$	—		$	265,664		$	13,709		$	460,193
Residents fees and services	—			271,061			—			—			271,061
Total revenues	180,820			271,061			265,664			13,709			731,254
Expenses:
Property operating expenses	—			204,178			72,135			—			276,313
Depreciation and amortization	51,322			41,357			90,711			2,844			186,234
General and administrative	—			—			—			32,563			32,563
Acquisition and certain other transaction related costs	—			—			—			6,517			6,517
Impairment of assets	(98		)	—			—			—			(98		)
Total expenses	51,224			245,535			162,846			41,924			501,529
Operating income (loss)	129,596			25,526			102,818			(28,215		)	229,725
Interest and other income	—			—			—			274			274
Interest expense	(18,598		)	(7,285		)	(5,232		)	(81,723		)	(112,838		)
Loss on early extinguishment of debt	(6		)	(33		)	—			(1,430		)	(1,469		)
Income (loss) from continuing operations before income tax expense and equity in earnings of an investee	110,992			18,208			97,586			(111,094		)	115,692
Income tax expense	—			—			—			(385		)	(385		)
Equity in earnings of an investee	—			—			—			70			70
Income (loss) from continuing operations	110,992			18,208			97,586			(111,409		)	115,377
Discontinued operations:
Loss from discontinued operations	—			—			(350		)	—			(350		)
Impairment of assets from discontinued operations	—			—			(602		)	—			(602		)
Net income (loss)	$	110,992		$	18,208		$	96,634		$	(111,409	)	$	114,425
	As of December 31, 2015
	Triple Net
	Leased			Managed
	Senior Living			Senior Living						All Other
	Communities			Communities			MOBs			Operations			Consolidated
Total assets	$	2,251,212		$	1,260,425		$	3,362,214		$	286,239		$	7,160,090

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Weighted Average Common Shares (Tables)

9 Months Ended

Sep. 30, 2016

Earnings Per Share [Abstract]

Schedule of Weighted Average Number of Shares

The following table provides a reconciliation of the weighted average number of common shares used in the calculation of basic and diluted earnings per share (in thousands): 

	Three Months Ended September 30,		Nine Months Ended September 30,
	2016	2015	2016	2015
Weighted average common shares for basic earnings per share	237,347	237,263	237,329	231,454
Effect of dilutive securities: unvested share awards	49	30	40	32
Weighted average common shares for diluted earnings per share	237,396	237,293	237,369	231,486

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Recent Accounting Pronouncements (Details) - ASU No. 2015-03, Simplifying the Presentation of Debt Issuance Costs $ in Thousands	Dec. 31, 2015 USD ($)
Debt liabilities | Unsecured term loan
Deferred financing fees, net	$ 3,695
Debt liabilities | Senior unsecured notes
Deferred financing fees, net	16,530
Debt liabilities | Secured debt and capital lease
Deferred financing fees, net	3,664
Assets | Unsecured term loan
Deferred financing fees, net	(3,695)
Assets | Senior unsecured notes
Deferred financing fees, net	(16,530)
Assets | Secured debt and capital lease
Deferred financing fees, net	$ (3,664)

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Real Estate Properties (Details) ft² in Thousands, $ in Thousands	1 Months Ended										3 Months Ended		4 Months Ended	9 Months Ended
	Oct. 31, 2016 USD ($) ft² building property	Sep. 30, 2016 state building community property	Jul. 31, 2016 building	Jun. 30, 2016 state living_unit	Jun. 30, 2016 state building	Jun. 30, 2016 USD ($) state	Jun. 30, 2016 state community	Jun. 30, 2016 state property	May 31, 2016 USD ($) ft² living_unit building community property	Feb. 29, 2016 USD ($) ft² building property	Dec. 31, 2016 USD ($) living_unit community	Mar. 31, 2016 community	May 31, 2016 USD ($) ft² building property	Sep. 30, 2016 USD ($) state building property	Sep. 30, 2015 USD ($)
Real Estate Properties
Number of properties owned | property		431												431
Number of buildings owned | building		457												457
Number of states in which properties are located | state		42												42
Assumption of mortgage notes payable														$ 0	$ 181,432
Triple Net Leased Senior Living Communities
Real Estate Properties
Number of communities | community												2
Acquisition
Real Estate Properties
Weighted average amortization period														6 years 4 months 24 days
Weighted average amortization period of assumed real estate lease obligations														7 years 3 months 18 days
Acquisition | Managed senior living communities | Five Star | TRS
Real Estate Properties
Number of properties | community									1
Number of acquired living units | living_unit									38
Acquisition | MOBs
Real Estate Properties
Number of properties | property													2
Number of buildings acquired | building													4
Area of real estate properties (in square feet) | ft²									294				294
Acquired real estate leases									$ 5,163				$ 5,163
Acquired real estate lease obligations									$ (1,760)				(1,760)
Assumption of mortgage notes payable													0
Premium on assumed debt													0
Real estate aggregate purchase price													67,930
Land | Acquisition | MOBs
Real Estate Properties
Property plant and equipment acquired													6,866
Building improvements | Acquisition | MOBs
Real Estate Properties
Property plant and equipment acquired													57,661
4 States | Triple Net Leased Senior Living Communities
Real Estate Properties
Number of states in which properties are located | state				4	4	4	4	4
Number of properties							7	7
Number of acquired living units | living_unit				545
Assumption of mortgage notes payable						$ 0
Premium on assumed debt						0
Purchase price excluding closing costs						112,493
Real estate aggregate purchase price						112,350
4 States | Land | Triple Net Leased Senior Living Communities
Real Estate Properties
Real estate aggregate purchase price						11,085
4 States | Building improvements | Triple Net Leased Senior Living Communities
Real Estate Properties
Real estate aggregate purchase price						94,940
4 States | Furniture, fixtures and equipment | Triple Net Leased Senior Living Communities
Real Estate Properties
Real estate aggregate purchase price						$ 6,468
Georgia | Managed senior living communities | Five Star | TRS
Real Estate Properties
Number of properties | property									1
Number of acquired living units | living_unit									38
Acquired real estate leases									$ 1,400				$ 1,400
Assumption of mortgage notes payable									0
Premium on assumed debt									0
Purchase price excluding closing costs									8,400
Georgia | Land | Managed senior living communities | Five Star | TRS
Real Estate Properties
Purchase price excluding closing costs									327
Georgia | Building improvements | Managed senior living communities | Five Star | TRS
Real Estate Properties
Purchase price excluding closing costs									6,195
Georgia | Furniture, fixtures and equipment | Managed senior living communities | Five Star | TRS
Real Estate Properties
Purchase price excluding closing costs									$ 478
Minnesota | MOBs
Real Estate Properties
Number of properties | property										1
Number of buildings acquired | building										3
Area of real estate properties (in square feet) | ft²										128
Acquired real estate leases										$ 5,163
Acquired real estate lease obligations										(1,760)
Assumption of mortgage notes payable										0
Premium on assumed debt										0
Purchase price excluding closing costs										22,700
Minnesota | Land | MOBs
Real Estate Properties
Property plant and equipment acquired										4,074
Minnesota | Building improvements | MOBs
Real Estate Properties
Property plant and equipment acquired										$ 15,223
Florida | MOBs
Real Estate Properties
Number of properties | property									1
Number of buildings acquired | building									1
Area of real estate properties (in square feet) | ft²									166				166
Acquired real estate leases									$ 0				$ 0
Acquired real estate lease obligations									0				$ 0
Assumption of mortgage notes payable									0
Premium on assumed debt									0
Purchase price excluding closing costs									45,230
Real estate aggregate purchase price									45,000
Florida | Land | MOBs
Real Estate Properties
Property plant and equipment acquired									2,792
Florida | Building improvements | MOBs
Real Estate Properties
Property plant and equipment acquired									$ 42,438
Discontinued Operations, Disposed of by Sale | Five Star
Real Estate Properties
Number of communities | community		1
Discontinued Operations, Disposed of by Sale | MOBs
Real Estate Properties
Number of buildings sold | building			4
Number of properties sold | building			4
Discontinued Operations, Held-for-sale or Disposed of by Sale | Skilled Nursing Facilities
Real Estate Properties
Number of properties sold | building					1
Subsequent Event | Ohio | MOBs
Real Estate Properties
Number of properties | property	1
Number of buildings acquired | building	1
Area of real estate properties (in square feet) | ft²	96
Purchase price excluding closing costs	$ 18,500
Scenario, Forecast | Illinois | Triple Net Leased Senior Living Communities
Real Estate Properties
Number of properties | community											2
Number of acquired living units | living_unit											126
Purchase price excluding closing costs											$ 18,600

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Real Estate Properties - Discontinued Operations and Properties Held for Sale (Details)	1 Months Ended					3 Months Ended				9 Months Ended
	Sep. 30, 2016 USD ($) community property	Jul. 31, 2016 USD ($) building	Jun. 30, 2016 USD ($) building property	Apr. 30, 2016 USD ($) tenant_agreement	Mar. 31, 2016 USD ($) land_parcel	Sep. 30, 2016 USD ($) community property	Jun. 30, 2016 USD ($) building property	Mar. 31, 2016 USD ($) operator building community land_parcel property	Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($) community property	Sep. 30, 2015 USD ($)
Real estate properties
Impairment (reversal of impairment) of assets						$ 4,578,000			$ (98,000)	$ 16,930,000	$ (98,000)
Number of tenants | tenant_agreement				1
Gain on sale of properties						0			$ 0	$ 4,061,000	$ 0
Discontinued Operations, Disposed of by Sale
Real estate properties
Impairment (reversal of impairment) of assets						2,191,000
Discontinued Operations, Held-for-sale or Disposed of by Sale
Real estate properties
Impairment (reversal of impairment) of assets						$ 2,394,000
Number of properties classified as held for sale | community	1					1				1
Five Star | Discontinued Operations, Disposed of by Sale
Real estate properties
Number of communities | community	1
Sale price of property sold and agreed to be sold	$ 248,000
Gain on sale of properties						$ 0
Increase or decrease in annual lease rent payable						$ 25,000
Five Star | TRS
Real estate properties
Proceeds from settlement agreement				$ 2,365,000
Triple Net Leased Senior Living Communities
Real estate properties
Impairment (reversal of impairment) of assets								$ 4,391,000
Number of communities | community								2
Number of tenants | operator								2
MOBs
Real estate properties
Impairment (reversal of impairment) of assets							$ 4,961,000
Number of properties classified as held for sale | property	2		5			2	5			2
Number of buildings held for sale | building			5				5
MOBs | Discontinued Operations, Disposed of by Sale
Real estate properties
Number of properties sold | building		4
Number of buildings sold | building		4
Sale price of property sold and agreed to be sold		$ 20,150,000
Gain on sale of properties		$ 0
MOBs | Discontinued Operations, Held-for-sale or Disposed of by Sale
Real estate properties
Number of properties classified as held for sale | property	1					1				1
MOB and land parcel
Real estate properties
Impairment (reversal of impairment) of assets								$ 2,999,000
Number of properties sold | property								1
Number of buildings sold | building								1
Managed senior living communities | Discontinued Operations, Held-for-sale or Disposed of by Sale
Real estate properties
Number of properties classified as held for sale | community	1					1				1
Land parcel
Real estate properties
Number of properties classified as held for sale | land_parcel					1			1
Land parcel | Discontinued Operations, Disposed of by Sale
Real estate properties
Sale price of property sold and agreed to be sold					$ 700,000
Gain on sale of properties					$ 0
Skilled Nursing Facilities | Discontinued Operations, Disposed of by Sale
Real estate properties
Impairment (reversal of impairment) of assets						$ 2,191,000
Number of properties classified as held for sale | community	1					1				1
Skilled Nursing Facilities | Discontinued Operations, Held-for-sale or Disposed of by Sale
Real estate properties
Number of properties sold | building			1
Sale price of property sold and agreed to be sold			$ 9,100,000
Gain on sale of properties			$ 4,061,000
Scenario, Adjustment | MOBs | Discontinued Operations, Disposed of by Sale
Real estate properties
Impairment (reversal of impairment) of assets						$ (7,000)

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Investments in Available for Sale Securities (Details) $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 30, 2016 USD ($) $ / shares shares
Five Star
Unrealized gain on investments
Investment in common shares (in shares) | shares	4,235,000
Amount of investment acquired	$ 14,230
Fair value of the investments in available for sale securities	8,089
Unrealized loss	$ 6,141
Weighted average costs (in dollars per share) | $ / shares	$ 1.91
The RMR Group Inc
Unrealized gain on investments
Amount of investment acquired	$ 69,826
Fair value of the investments in available for sale securities	$ 100,063
Weighted average costs (in dollars per share) | $ / shares	$ 37.94
Unrealized gain	$ 30,237
The RMR Group Inc | Class A common shares
Unrealized gain on investments
Investment in common shares (in shares) | shares	2,637,408

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Indebtedness (Details)		1 Months Ended							3 Months Ended			9 Months Ended
	Sep. 30, 2015	Oct. 31, 2016 USD ($) property	Sep. 30, 2016 USD ($) property building note	Jul. 31, 2016 USD ($) building property	Apr. 30, 2016 USD ($) property	Feb. 29, 2016 USD ($)	Jan. 31, 2016 USD ($) property	Sep. 30, 2015	Dec. 31, 2016 USD ($) note property	Sep. 30, 2016 USD ($) property building note	Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($) property building note	Sep. 30, 2015 USD ($)	Nov. 03, 2016 USD ($)	Dec. 31, 2015 USD ($)
Indebtedness
Line of credit facility, periodic payment, principal										$ 0
Number of public issues of unsecured senior notes | note			6							6		6
Principal amount of unsecured senior notes			$ 1,722,032,000							$ 1,722,032,000		$ 1,722,032,000			$ 1,478,536,000
Aggregate principal amount of mortgage debt			1,160,847,000							1,160,847,000		1,160,847,000
Carrying value of mortgaged properties			6,387,141,000							6,387,141,000		6,387,141,000			6,309,400,000
Proceeds from unsecured term loans												0	$ 200,000,000
Unsecured revolving credit facility			215,000,000							215,000,000		215,000,000			$ 775,000,000
Loss on early extinguishment of debt										(84,000)	$ (21,000)	(90,000)	(1,469,000)
Unsecured revolving credit facility
Indebtedness
Unsecured revolving credit facility, maximum borrowing capacity			1,000,000,000							1,000,000,000		1,000,000,000
Option to increase the borrowing capacity under revolving credit facility			$ 1,500,000							$ 1,500,000		$ 1,500,000
Revolving credit facility, interest rate payable (as a percent)			1.80%							1.80%		1.80%
Interest expense and other associated costs incurred										$ 2,024,000	$ 2,884,000	$ 9,159,000	$ 5,886,000
Unsecured revolving credit facility			$ 215,000,000							$ 215,000,000		$ 215,000,000
Weighted average interest rate on debt (as a percent)										1.80%	1.50%	1.70%	1.50%
Revolving credit facility, available amount			785,000,000							$ 785,000,000		$ 785,000,000
Unsecured revolving credit facility | LIBOR
Indebtedness
Interest rate added to the base rate (as a percent)												1.30%
Debt instrument, facility fee (as a percent)												0.30%
Senior unsecured notes due 2019
Indebtedness
Principal amount of unsecured senior notes			$ 400,000,000							$ 400,000,000		$ 400,000,000
Interest rate (as a percent)			3.25%							3.25%		3.25%
Senior unsecured notes 6.75%
Indebtedness
Principal amount of unsecured senior notes			$ 200,000,000							$ 200,000,000		$ 200,000,000
Interest rate (as a percent)			6.75%							6.75%		6.75%
Unsecured senior notes due 2021
Indebtedness
Principal amount of unsecured senior notes			$ 300,000,000							$ 300,000,000		$ 300,000,000
Interest rate (as a percent)			6.75%							6.75%		6.75%
Senior unsecured notes due 2024
Indebtedness
Principal amount of unsecured senior notes			$ 250,000,000							$ 250,000,000		$ 250,000,000
Interest rate (as a percent)			4.75%							4.75%		4.75%
Senior unsecured notes 5.625% due in 2042
Indebtedness
Principal amount of unsecured senior notes			$ 350,000,000							$ 350,000,000		$ 350,000,000
Interest rate (as a percent)			5.625%							5.625%		5.625%
Senior unsecured notes 6.25% due in 2046
Indebtedness
Principal amount of unsecured senior notes			$ 250,000,000							$ 250,000,000		$ 250,000,000
Interest rate (as a percent)			6.25%			6.25%				6.25%		6.25%
Proceeds from unsecured term loans						$ 250,000,000
Term Loan Due 2020
Indebtedness
Interest rate (as a percent)			1.90%							1.90%		1.90%
Unsecured term loan facility			$ 350,000,000							$ 350,000,000		$ 350,000,000
Interest expense and other associated costs incurred										$ 1,707,000	$ 1,423,000	$ 4,956,000	$ 4,246,000
Weighted average interest rate on debt (as a percent)										1.90%	1.60%	1.90%	1.60%
Maximum borrowing capacity that may be increased			700,000,000							$ 700,000,000		$ 700,000,000
Term Loan Due 2022
Indebtedness
Principal amount of unsecured senior notes			200,000,000							200,000,000		200,000,000
Unsecured term loan facility			200,000,000							200,000,000		$ 200,000,000
Weighted average interest rate on debt (as a percent)	2.30%											2.30%
Maximum borrowing capacity that may be increased			$ 400,000,000							$ 400,000,000		$ 400,000,000
Mortgages
Indebtedness
Number of properties mortgaged | property			52	1	1		1			52		52
Number of buildings mortgaged | building			54							54		54
Carrying value of mortgaged properties			$ 1,693,723,000							$ 1,693,723,000		$ 1,693,723,000
Weighted average interest rate on prepaid debt (as a percent)				6.25%	4.65%		5.97%
Prepayment of mortgage				$ 11,871,000	$ 18,000,000		$ 6,115,000
Capital leases
Indebtedness
Carrying value of mortgaged properties			$ 36,061,000							$ 36,061,000		$ 36,061,000
Number of properties recorded under capital lease | property			2							2		2
Capital leases			$ 11,643,000							$ 11,643,000		$ 11,643,000
Unsecured Debt
Indebtedness
Weighted average interest rate on debt (as a percent)										2.30%		2.30%
Unsecured Debt | LIBOR
Indebtedness
Interest rate added to the base rate (as a percent)								1.80%				1.40%
Unsecured Debt September 2015
Indebtedness
Interest expense and other associated costs incurred										$ 1,173,000	$ 33,000	$ 3,433,000	$ 33,000
Prepayment Notification | Mortgages
Indebtedness
Number of properties mortgaged | property			2							2		2
Weighted average interest rate on prepaid debt (as a percent)			5.92%
Number of mortgage notes | note			2
Prepayment of mortgage			$ 79,957,000							$ 79,957,000		$ 79,957,000
MOBs | Secured debt financing due 2026
Indebtedness
Aggregate principal amount of mortgage debt				$ 620,000,000
Number of properties mortgaged | property				1
Number of buildings mortgaged | building				2
Weighted average interest rate on debt (as a percent)				3.53%
Scenario, Forecast | Prepayment Notification | Mortgages
Indebtedness
Number of properties mortgaged | property									1
Weighted average interest rate on prepaid debt (as a percent)									5.86%
Number of mortgage notes | note									1
Prepayment of mortgage									$ 5,428,000
Subsequent Event | Unsecured revolving credit facility
Indebtedness
Unsecured revolving credit facility														$ 265,000,000
Revolving credit facility, available amount														$ 735,000,000
Subsequent Event | Mortgages
Indebtedness
Number of properties mortgaged | property		8
Subsequent Event | Prepayment Notification | Mortgages
Indebtedness
Weighted average interest rate on prepaid debt (as a percent)		6.54%
Prepayment of mortgage		$ 42,542,000

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Shareholders' Equity (Details) $ / shares in Units, $ in Thousands								9 Months Ended
	Oct. 21, 2016 USD ($) $ / shares	Sep. 26, 2016 $ / shares shares	Sep. 15, 2016 $ / shares shares	Aug. 18, 2016 USD ($) $ / shares	May 19, 2016 USD ($) $ / shares	May 18, 2016 trustee $ / shares shares	Feb. 23, 2016 USD ($) $ / shares	Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)
Subsequent Event [Line Items]
Distribution to common shareholders (in dollars per share)				$ 0.39	$ 0.39		$ 0.39
Distribution to common shareholders | $				$ 92,619	$ 92,614		$ 92,614	$ 277,846	$ 263,770
Number of trustees | trustee						5
Shares paid for tax withholding for share based compensation (in shares) | shares		17,667
Share-based compensation, per share price of shares purchased (in dollars per share)		$ 23.53
Subsequent Event
Subsequent Event [Line Items]
Common stock dividends payable | $	$ 92,643
Common stock dividend declared (in dollars per share)	$ 0.39
Stock Compensation Plan
Subsequent Event [Line Items]
Share-based compensation, equity instruments other than options, grants in period (in shares) | shares						2,500
Share-based compensation, equity instruments other than options, grants in period, weighted average grant date fair value (in dollars per share)						$ 18.26
Stock Compensation Plan | Officers and Certain Employees
Subsequent Event [Line Items]
Share-based compensation, equity instruments other than options, grants in period (in shares) | shares			79,650
Share-based compensation, equity instruments other than options, grants in period, weighted average grant date fair value (in dollars per share)			$ 21.64

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Fair Value of Assets and Liabilities (Details) $ in Thousands	Sep. 30, 2016 USD ($) note property shares	Jun. 30, 2016 property	Dec. 31, 2015 USD ($)
Assets and liabilities measured at fair value
Number of public issues of unsecured senior notes | note	6
Senior unsecured notes	$ 1,722,032		$ 1,478,536
Secured mortgage debt and capital leases	1,168,827		679,295
Carrying value
Assets and liabilities measured at fair value
Senior unsecured notes	1,722,032		1,478,536
Secured mortgage debt and capital leases	1,168,827		679,295
Debt Instrument	2,890,859		2,157,831
Fair value
Assets and liabilities measured at fair value
Senior unsecured notes	1,830,935		1,548,613
Secured mortgage debt and capital leases	1,195,240		724,615
Debt Instrument	$ 3,026,175		$ 2,273,228
MOBs
Assets and liabilities measured at fair value
Number of properties classified as held for sale | property	2	5
Five Star
Assets and liabilities measured at fair value
Investment in common shares (in shares) | shares	4,235,000
Five Star | Common Shares
Assets and liabilities measured at fair value
Investment in common shares (in shares) | shares	4,235,000
Amount of investment acquired	$ 14,230
Unrealized loss	$ 6,141
RMR Inc | Class A common shares
Assets and liabilities measured at fair value
Investment in common shares (in shares) | shares	2,637,408
Amount of investment acquired	$ 69,826
Unrealized gain	30,237
Recurring
Assets and liabilities measured at fair value
Investments in available for sale securities	108,152
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets and liabilities measured at fair value
Investments in available for sale securities	108,152
Recurring | Significant Unobservable Inputs (Level 3)
Assets and liabilities measured at fair value
Investments in available for sale securities	0
Nonrecurring
Assets and liabilities measured at fair value
Assets held for sale	3,627
Nonrecurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets and liabilities measured at fair value
Assets held for sale	0
Nonrecurring | Significant Unobservable Inputs (Level 3)
Assets and liabilities measured at fair value
Assets held for sale	$ 3,627

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Segment Reporting (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($) segment	Sep. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)
Segment reporting
Number of operating segments | segment			4
Number of reportable segments | segment			3
Revenues:
Rental income	$ 165,503	$ 158,863	$ 490,922	$ 460,193
Residents fees and services	98,480	96,412	292,803	271,061
Total revenues	263,983	255,275	783,725	731,254
Expenses:
Property operating expenses	103,347	96,927	298,776	276,313
Depreciation and amortization	72,344	70,016	214,938	186,234
General and administrative	12,107	10,316	34,931	32,563
Acquisition and certain other transaction related costs	824	742	1,443	6,517
Impairment of assets	4,578	(98)	16,930	(98)
Total expenses	193,200	177,903	567,018	501,529
Operating income	70,783	77,372	216,707	229,725
Dividend income	659		1,449
Interest and other income	89	57	330	274
Interest expense	(43,438)	(38,989)	(123,837)	(112,838)
Loss on early extinguishment of debt	(84)	(21)	(90)	(1,469)
Income from continuing operations before income tax expense and equity in earnings (losses) of an investee	28,009	38,419	94,559	115,692
Income tax expense	(119)	(146)	(318)	(385)
Equity in earnings (losses) of an investee	13	(24)	107	70
Income from continuing operations	27,903	38,249	94,348	115,377
Discontinued operations:
Loss from discontinued operations	0	0	0	(350)
Impairment of assets from discontinued operations	0	0	0	(602)
Income before gain on sale of properties	27,903	38,249	94,348	114,425
Gain on sale of properties	0	0	4,061	0
Net income	27,903	38,249	98,409	114,425
Total assets	7,230,098		7,230,098		$ 7,160,090
Triple Net Leased Senior Living Communities
Revenues:
Rental income	66,520	64,222	198,269	180,820
Residents fees and services	0	0	0	0
Total revenues	66,520	64,222	198,269	180,820
Expenses:
Property operating expenses	47	0	833	0
Depreciation and amortization	19,727	19,140	58,401	51,322
General and administrative	0	0	0	0
Acquisition and certain other transaction related costs	0	0		0
Impairment of assets	2,191	(98)	6,583	(98)
Total expenses	21,965	19,042	65,817	51,224
Operating income	44,555	45,180	132,452	129,596
Dividend income	0		0
Interest and other income	0	0	0	0
Interest expense	(6,228)	(6,342)	(18,892)	(18,598)
Loss on early extinguishment of debt	0	0	0	(6)
Income from continuing operations before income tax expense and equity in earnings (losses) of an investee	38,327	38,838	113,560	110,992
Income tax expense	0	0	0	0
Equity in earnings (losses) of an investee	0	0	0	0
Income from continuing operations				110,992
Discontinued operations:
Loss from discontinued operations				0
Impairment of assets from discontinued operations				0
Income before gain on sale of properties		38,838	113,560
Gain on sale of properties			4,061
Net income	38,327		117,621	110,992
Total assets	2,281,420		2,281,420		2,251,212
Managed senior living communities
Revenues:
Rental income	0	0	0	0
Residents fees and services	98,480	96,412	292,803	271,061
Total revenues	98,480	96,412	292,803	271,061
Expenses:
Property operating expenses	74,763	71,983	218,582	204,178
Depreciation and amortization	20,747	19,248	60,905	41,357
General and administrative	0	0	0	0
Acquisition and certain other transaction related costs	0	0		0
Impairment of assets	2,394	0	2,394	0
Total expenses	97,904	91,231	281,881	245,535
Operating income	576	5,181	10,922	25,526
Dividend income	0		0
Interest and other income	0	0	0	0
Interest expense	(2,104)	(2,705)	(7,332)	(7,285)
Loss on early extinguishment of debt	(84)	0	(90)	(33)
Income from continuing operations before income tax expense and equity in earnings (losses) of an investee	(1,612)	2,476	3,500	18,208
Income tax expense	0	0	0	0
Equity in earnings (losses) of an investee	0	0	0	0
Income from continuing operations				18,208
Discontinued operations:
Loss from discontinued operations				0
Impairment of assets from discontinued operations				0
Income before gain on sale of properties		2,476	3,500
Gain on sale of properties			0
Net income	(1,612)		3,500	18,208
Total assets	1,272,441		1,272,441		1,260,425
MOBs
Revenues:
Rental income	94,404	90,072	278,964	265,664
Residents fees and services	0	0	0	0
Total revenues	94,404	90,072	278,964	265,664
Expenses:
Property operating expenses	28,537	24,944	79,361	72,135
Depreciation and amortization	30,922	30,680	92,788	90,711
General and administrative	0	0	0	0
Acquisition and certain other transaction related costs	0	0		0
Impairment of assets	(7)	0	7,953	0
Total expenses	59,452	55,624	180,102	162,846
Operating income	34,952	34,448	98,862	102,818
Dividend income	0		0
Interest and other income	0	0	0	0
Interest expense	(5,599)	(1,707)	(7,398)	(5,232)
Loss on early extinguishment of debt	0	0	0	0
Income from continuing operations before income tax expense and equity in earnings (losses) of an investee	29,353	32,741	91,464	97,586
Income tax expense	0	0	0	0
Equity in earnings (losses) of an investee	0	0	0	0
Income from continuing operations				97,586
Discontinued operations:
Loss from discontinued operations				(350)
Impairment of assets from discontinued operations				(602)
Income before gain on sale of properties		32,741	91,464
Gain on sale of properties			0
Net income	29,353		91,464	96,634
Total assets	3,343,492		3,343,492		3,362,214
All Other Operations
Revenues:
Rental income	4,579	4,569	13,689	13,709
Residents fees and services	0	0	0	0
Total revenues	4,579	4,569	13,689	13,709
Expenses:
Property operating expenses	0	0	0	0
Depreciation and amortization	948	948	2,844	2,844
General and administrative	12,107	10,316	34,931	32,563
Acquisition and certain other transaction related costs	824	742	1,443	6,517
Impairment of assets	0	0	0	0
Total expenses	13,879	12,006	39,218	41,924
Operating income	(9,300)	(7,437)	(25,529)	(28,215)
Dividend income	659		1,449
Interest and other income	89	57	330	274
Interest expense	(29,507)	(28,235)	(90,215)	(81,723)
Loss on early extinguishment of debt	0	(21)	0	(1,430)
Income from continuing operations before income tax expense and equity in earnings (losses) of an investee	(38,059)	(35,636)	(113,965)	(111,094)
Income tax expense	(119)	(146)	(318)	(385)
Equity in earnings (losses) of an investee	13	(24)	107	70
Income from continuing operations				(111,409)
Discontinued operations:
Loss from discontinued operations				0
Impairment of assets from discontinued operations				0
Income before gain on sale of properties		$ (35,806)	(114,176)
Gain on sale of properties			0
Net income	(38,165)		(114,176)	$ (111,409)
Total assets	$ 332,745		$ 332,745		$ 286,239

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Significant Tenant (Details) - Five Star - community	3 Months Ended	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2016
Number of properties managed by significant tenant		63
Investment
% of Total (as a percent)		29.70%
Rents from significant lessee
% of Total (as a percent)	19.10%

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Related Person Transactions - Five Star (Details)					1 Months Ended		3 Months Ended				9 Months Ended
	Oct. 31, 2016 living_unit	Oct. 31, 2016 community	Sep. 30, 2016 USD ($) community shares	Jun. 29, 2016 USD ($) community lease_agreement pooling_agreement management_agreement	Sep. 30, 2016 USD ($) community living_unit shares	May 31, 2016 USD ($)	Dec. 31, 2016 USD ($) living_unit community	Sep. 30, 2016 USD ($) community shares	Mar. 31, 2016 community	Sep. 30, 2015 USD ($) community	Sep. 30, 2016 USD ($) community shares	Sep. 30, 2015 USD ($) community	Apr. 30, 2016 living_unit	Dec. 31, 2015 USD ($)	May 31, 2015	Dec. 31, 2001
Minimum
Related person transactions
Number Of Units That May Be Re-Assigned To An Existing Or To A New Long Term Lease | community			1		1			1			1
Triple Net Leased Senior Living Communities
Related person transactions
Number of communities | community									2
Five Star
Related person transactions
Percentage of total shares outstanding			8.60%		8.60%			8.60%			8.60%					100.00%
Investment in common shares (in shares) | shares			4,235,000		4,235,000			4,235,000			4,235,000
Number of pre-existing agreements | lease_agreement				4
Number of management agreements used by one pooling agreement | management_agreement				5
Number of management agreements used by nine pooling agreements | management_agreement				6
Number of real estate properties leased | community			183		183			183		178	183	178
Total rental income recognized								$ 50,417,000		$ 47,828,000	$ 146,758,000	$ 143,271,000
Estimated percentage rent payments received								1,367,000		1,371,000	4,228,000	4,194,000
Rents receivable			$ 16,831,000		$ 16,831,000			16,831,000			16,831,000			$ 17,466,000
Payment of capital expenditure								266,000			266,000
Five Star | Florida
Related person transactions
Business management fees incurred											2,100,000
Five Star | Senior Living Communities
Related person transactions
Number of properties acquired or agreed to be acquired | community				7
Purchase price excluding closing costs and working capital adjustments				$ 112,350,000
Initial annual rent				$ 8,426,000
Annual rent percentage (as a percent)				0.04
Number of consecutive renewal terms of agreement | lease_agreement				2
Renewal period				15 years
Number of pre-existing management agreements terminated | pooling_agreement				3
Number of new management agreements entered | pooling_agreement				10
Real estate improvements purchased								3,470,000		7,523,000	15,306,000	16,425,000
Increase or decrease in annual lease rent payable								279,000		604,000	1,228,000	$ 1,322,000
Number of properties acquired, referred to as managed properties | community												60
Property management agreement expense								3,070,000		$ 2,717,000	$ 8,689,000	$ 7,939,000
Five Star | Senior Living Communities | Wisconsin
Related person transactions
Increase or decrease in annual lease rent payable					$ 25,000
Five Star | Senior Living Communities | Georgia
Related person transactions
Purchase price excluding closing costs and working capital adjustments						$ 8,400,000
Five Star | Senior Living Communities | North Carolina
Related person transactions
Number of living units | living_unit													288
Five Star | Living Unit
Related person transactions
Number of acquired living units | living_unit					1
Five Star | Living Unit | Florida
Related person transactions
Purchase price excluding closing costs and working capital adjustments			$ 130,000
Increase or decrease in annual lease rent payable					$ 10,000
Five Star | New Pooling Agreements Which Combine Six AL Management Agreements
Related person transactions
Number of combination or pooling agreements | pooling_agreement				9
Five Star | New Pooling Agreement Which Combine Five AL Management Agreements
Related person transactions
Number of combination or pooling agreements | pooling_agreement				1
Five Star | First AL Pooling Agreement
Related person transactions
Management fees as a percentage of gross revenues				5.00%											3.00%
Incentive fee as percentage of the annual net operating income after the entity realizes an annual return equal to 8% of invested capital				20.00%											35.00%
Payment of capital expenditure as a percentage of the amount funded by entity				0.03										0.07
Number of consecutive period during which the entity must not receive the minimum return for the property management agreement to be subject to the pooling agreement				3 years
Minimum annual rent from Five Star														$ 3,610,000
Five Star | First AL Pooling Agreement | Minimum
Related person transactions
Annual return as a percentage of invested surplus specified as a base for determining incentive fee															8.00%
Five Star | First AL Pooling Agreement | Maximum
Related person transactions
Annual return as a percentage of invested surplus specified as a base for determining incentive fee				7.00%
Five Star | First AL Pooling Agreement | Senior Living Communities
Related person transactions
Annual return as a percentage of invested surplus specified as a base for determining incentive fee														7.00%
Discontinued Operations, Disposed of by Sale | Five Star
Related person transactions
Number of communities | community					1
Increase or decrease in annual lease rent payable								$ 25,000
Sale price of property sold and agreed to be sold					$ 248,000
Discontinued Operations, Disposed of by Sale | Five Star | Wisconsin
Related person transactions
Number of communities | community					1
Sale price of property sold and agreed to be sold					$ 248,000
Subsequent Event | Five Star | Georgia
Related person transactions
Number of properties managed by significant tenant	350	4
Five Star
Related person transactions
Number of properties managed by significant tenant | community											63
Scenario, Forecast | Triple Net Leased Senior Living Communities | Illinois
Related person transactions
Number of properties acquired or agreed to be acquired | community							2
Number of acquired living units | living_unit							126
Purchase price excluding closing costs and working capital adjustments							$ 18,600,000

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Related Person Transactions - Management Fees and Reimbursements (Details) - USD ($) $ in Thousands		3 Months Ended		5 Months Ended	9 Months Ended
	Sep. 26, 2016	Sep. 30, 2016	Sep. 30, 2015	May 31, 2016	Sep. 30, 2016	Sep. 30, 2015
Related person transactions
Property management and construction supervision fees		$ 2,961	$ 2,533		$ 8,193	$ 7,554
Property management and construction supervision fees paid		2,482	1,954		6,781	5,189
Shares paid for tax withholding for share based compensation (in shares)	17,667
RMR LLC
Related person transactions
Business management fees incurred		9,609	8,682		27,199	26,644
Common shares issued as payment for base business management fee (in shares)				68,983
Accrual for RMR LLC employee share grants and internal audit costs		$ 901	$ 302		$ 2,075	$ 1,337
Stock Compensation Plan | RMR LLC
Related person transactions
Share-based compensation arrangement shares issued in period (in shares)					79,650	84,000
Shares paid for tax withholding for share based compensation (in shares)					17,667

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Related Person Transactions - Investment in RMR Inc (Details)		1 Months Ended	3 Months Ended			9 Months Ended
	Oct. 21, 2016 $ / shares	Sep. 30, 2016 USD ($) company	Sep. 30, 2016 USD ($) company $ / shares	Jun. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($) company shares	Sep. 30, 2015 USD ($)	Oct. 27, 2016 shares	Oct. 02, 2016 $ / shares shares	Dec. 31, 2015 USD ($)
Related person transactions
Income (loss) recognized arising from equity investments			$ 13,000		$ (24,000)	$ 107,000	$ 70,000
Change in net unrealized gain(loss) on investments			16,562,000		(7,242,000)	$ 56,680,000	(4,407,000)
Officers' compensation, directors' and officers' liability insurance policy extension period		1 year
Officers' compensation, directors' and officers' liability insurance policy premium		$ 142,000
RMR Inc
Related person transactions
Amortization of other liabilities to reduce business and property management fees			$ 943,000		959,000
RMR Inc | Class A common shares
Related person transactions
Number of shares purchased (in shares) | shares						2,637,408
Common stock dividend declared (in dollars per share) | $ / shares			$ 0.25
Five Star
Related person transactions
Payment of capital expenditure			$ 266,000			$ 266,000
AIC
Related person transactions
Equity method investments, carrying value		7,110,000	7,110,000			7,110,000				$ 6,827,000
Income (loss) recognized arising from equity investments			13,000		(24,000)	107,000	70,000
Change in net unrealized gain(loss) on investments			80,000		(72,000)	175,000	(91,000)
Property insurance premium						3,607,000
RMR LLC
Related person transactions
Rental revenue from related party			82,000		$ 51,000	198,000	153,000
RMR Inc | RMR Inc
Related person transactions
Amortization of other liabilities to reduce business and property management fees						2,829,000	$ 1,202,000
RMR Inc | RMR LLC
Related person transactions
Initial other liabilities		$ 72,876,000	$ 72,876,000			72,876,000
December 14, 2015 through March 31, 2016 | RMR Inc | Class A common shares
Related person transactions
Dividends received				$ 789,000
April 1, 2016 through June 30, 2016 | RMR Inc | Class A common shares
Related person transactions
Dividends received						$ 659,000
Subsequent Event
Related person transactions
Common stock dividend declared (in dollars per share) | $ / shares	$ 0.39
Subsequent Event | ABP Trust
Related person transactions
Consent agreement, maximum number of shares (in shares) | shares								18,000,000	10,000,000
Consent agreement, share price (in dollars per share) | $ / shares									$ 3.00
AIC
Related person transactions
Number of affiliates | company		7	7			7

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Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Components of provision for income taxes
Income Tax Expense (Benefit)	$ 119	$ 146	$ 318	$ 385

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Weighted Average Common Shares (Details) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Earnings Per Share [Abstract]
Weighted average common shares outstanding (basic) (in shares)	237,347	237,263	237,329	231,454
Effect of dilutive securities: unvested share awards (in shares)	49	30	40	32
Weighted average common shares outstanding (diluted) (in shares)	237,396	237,293	237,369	231,486