Healthcare Realty Trust 10-Q 1 Nov 18 2018 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2018	Oct. 26, 2018
Document and Entity Information [Abstract]
Entity Registrant Name	HEALTHCARE REALTY TRUST INCORPORATED
Entity Central Index Key	899,749
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Sep. 30, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q3
Amendment Flag	false
Entity Common Stock, Shares Outstanding		125,237,283
Entity Emerging Growth Company	false
Entity Small Business	false

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Real estate properties:
Land	$ 217,322	$ 201,283
Buildings, improvements and lease intangibles	3,669,852	3,601,460
Personal property	10,454	10,314
Construction in progress	26,960	5,458
Land held for development	24,645	20,123
Real estate properties, Total	3,949,233	3,838,638
Less accumulated depreciation and amortization	(989,585)	(897,430)
Total real estate properties, net	2,959,648	2,941,208
Cash and cash equivalents	10,027	6,215
Assets held for sale, net	8,826	33,147
Other assets, net	222,582	213,015
Total assets	3,201,083	3,193,585
Liabilities:
Notes and bonds payable	1,344,759	1,283,880
Accounts payable and accrued liabilities	72,927	70,995
Liabilities of properties held for sale	141	93
Other liabilities	43,004	48,734
Total liabilities	1,460,831	1,403,702
Commitments and contingencies
Stockholders' equity:
Preferred stock, $.01 par value per share; 50,000 shares authorized; none issued and outstanding	0	0
Common stock, $.01 par value per share; 300,000 shares authorized; 125,237 and 125,132 shares issued and outstanding at September 30, 2018 and December 31, 2017, respectively	1,252	1,251
Additional paid-in capital	3,181,263	3,173,429
Accumulated other comprehensive income (loss)	473	(1,299)
Cumulative net income attributable to common stockholders	1,071,804	1,018,348
Cumulative dividends	(2,514,540)	(2,401,846)
Total stockholders' equity	1,740,252	1,789,883
Total liabilities and stockholders' equity	$ 3,201,083	$ 3,193,585

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Sep. 30, 2018	Dec. 31, 2017
Statement of Financial Position [Abstract]
Preferred stock, par value (dollars per share)	$ 0.01	$ 0.01
Preferred stock, authorized shares	50,000,000	50,000,000
Preferred stock, issued shares	0	0
Preferred stock, outstanding shares	0	0
Common stock, par value (dollars per share)	$ 0.01	$ 0.01
Common stock, authorized shares	300,000,000	300,000,000
Common stock, issued shares	125,237,000	125,132,000
Common stock, outstanding shares	125,237,000	125,132,000

Condensed Consolidated Statemen

Condensed Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
REVENUES
Rental income	$ 111,452	$ 105,078	$ 331,247	$ 311,171
Other operating	2,010	1,947	5,973	5,816
Revenues	113,462	107,025	337,220	316,987
EXPENSES
Property operating	44,135	40,628	127,691	116,663
General and administrative	8,504	8,021	25,977	24,720
Acquisition and pursuit costs	141	507	538	1,878
Depreciation and amortization	42,061	35,873	121,764	105,148
Bad debts, net of recoveries	(62)	4	42	175
Total Expenses	94,779	85,033	276,012	248,584
OTHER INCOME (EXPENSE)
Gain (loss) on sales of real estate assets	1,288	(7)	30,879	39,525
Interest expense	(13,464)	(14,107)	(39,202)	(42,694)
Impairment of real estate assets	0	(5,059)		(5,387)
Interest and other income, net	41	354	571	396
Total other income (expense)	(12,135)	(18,819)	(7,752)	(8,160)
NET INCOME	$ 6,548	$ 3,173	$ 53,456	$ 60,243
Basic earnings per common share (in dollars per share)	$ 0.05	$ 0.02	$ 0.42	$ 0.50
Diluted earnings per common share (in dollars per share)	$ 0.05	$ 0.02	$ 0.42	$ 0.50
Weighted average common shares outstanding - basic (in shares)	123,299,809	119,098,149	123,280,753	116,180,979
Weighted average common shares outstanding - diluted (in shares)	123,351,956	119,181,391	123,335,516	116,277,239
Dividends declared, per common share, during the period (in dollars per share)	$ 0.30	$ 0.30	$ 0.90	$ 0.90

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Statement of Comprehensive Income [Abstract]
NET INCOME	$ 6,548	$ 3,173	$ 53,456	$ 60,243
Interest rate swaps:
Reclassification adjustments for losses included in net income (interest expense)	95	43	369	127
Gains arising during the period on interest rate swaps	374		1,403
Total other comprehensive income	469	43	1,772	127
COMPREHENSIVE INCOME	$ 7,017	$ 3,216	$ 55,228	$ 60,370

Condensed Consolidated Statem_3

Condensed Consolidated Statement of Equity (Unaudited) Statement - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income (Loss)	Cumulative Net Income	Cumulative Dividends
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 60,243
Reclassification adjustments for losses included in net income (interest expense)	127
Beginning balance at Dec. 31, 2017	1,789,883	$ 1,251	$ 3,173,429	$ (1,299)	$ 1,018,348	$ (2,401,846)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock	464		464
Common stock redemptions	(719)		(719)
Share-based compensation	8,090	1	8,089
Net income	53,456				53,456
Reclassification adjustments for losses included in net income (interest expense)	369			369
Gains arising during the period on interest rate swaps	1,403			1,403
Dividends to common stockholders ($0.90 per share)	(112,694)					(112,694)
Ending balance at Sep. 30, 2018	$ 1,740,252	$ 1,252	$ 3,181,263	$ 473	$ 1,071,804	$ (2,514,540)

Condensed Consolidated Statem_4

Condensed Consolidated Statement of Equity (Unaudited) (Parenthetical)	9 Months Ended
	Sep. 30, 2018$ / shares
Statement of Stockholders' Equity [Abstract]
Dividend per share to common Stockholders (in dollars per share)	$ 0.90

Condensed Consolidated Statem_5

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
OPERATING ACTIVITIES
Net income	$ 53,456	$ 60,243
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	121,764	105,148
Other amortization	2,113	3,056
Share-based compensation	8,090	7,496
Amortization of straight-line rent receivable	(3,599)	(4,867)
Amortization of straight-line rent liability	1,147	492
Gain on sales of real estate assets	(30,879)	(39,525)
Impairment of real estate assets		5,387
Equity from unconsolidated joint ventures (income)	(15)
Distributions from unconsolidated joint ventures	182
Provision for bad debts, net	42	175
Changes in operating assets and liabilities:
Other assets	(6,891)	(6,037)
Accounts payable and accrued liabilities	5,908	(3,301)
Other liabilities	(638)	1,098
Net cash provided by operating activities	150,680	129,365
INVESTING ACTIVITIES
Acquisitions of real estate	(67,445)	(72,934)
Development of real estate	(21,059)	(11,753)
Additional long-lived assets	(59,802)	(52,305)
Proceeds from sales of real estate	64,271	119,425
Proceeds from notes receivable repayments	8	15
Net cash used in investing activities	(84,027)	(17,552)
FINANCING ACTIVITIES
Net borrowings (repayments) on unsecured credit facility	56,000	(107,000)
Repayments on notes and bonds payable	(3,808)	(4,654)
Dividends paid	(112,694)	(104,860)
Net proceeds from issuance of common stock	459	248,384
Common stock redemptions	(2,673)	(1,125)
Debt issuance and assumption costs	(125)	(84)
Net cash (used in) provided by financing activities	(62,841)	30,661
Increase in cash and cash equivalents	3,812	142,474
Cash and cash equivalents at beginning of period	6,215	54,507
Cash and cash equivalents at end of period	10,027	196,981
Supplemental Cash Flow Information:
Interest paid	30,463	42,136
Invoices accrued for construction, tenant improvements and other capitalized costs	5,680	6,842
Mortgage notes payable assumed upon acquisition (adjusted to fair value)	7,995	12,460
Capitalized interest	$ 684	$ 681

Summary of Significant Accounti

Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2018
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Business Overview Healthcare Realty Trust Incorporated (the "Company") is a real estate investment trust ("REIT") that owns, leases, manages, acquires, finances, develops and redevelops income-producing real estate properties associated primarily with the delivery of outpatient healthcare services throughout the United States. As of September 30, 2018 , the Company had gross investments of approximately $3.9 billion in 201 real estate properties located in 27 states totaling approximately 14.8 million square feet. The Company provided leasing and property management services to approximately 11.1 million square feet nationwide. Basis of Presentation The Condensed Consolidated Financial Statements have been prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP") for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. They do not include all of the information and footnotes required by GAAP for complete financial statements. However, except as disclosed herein, management believes there has been no material change in the information disclosed in the Notes to the Consolidated Financial Statements included in the Annual Report on Form 10-K for the year ended December 31, 2017 . All material intercompany transactions and balances have been eliminated in consolidation. This interim financial information should be read in conjunction with the Company’s Annual Report on Form 10-K for the year ended December 31, 2017 . Management believes that all adjustments of a normal, recurring nature considered necessary for a fair presentation have been included. In addition, the interim financial information does not necessarily represent or indicate what the operating results will be for the year ending December 31, 2018 for many reasons including, but not limited to, acquisitions, dispositions, capital financing transactions, changes in interest rates and the effects of other trends, risks and uncertainties. Use of Estimates in the Condensed Consolidated Financial Statements Preparation of the Condensed Consolidated Financial Statements in accordance with GAAP requires management to make estimates and assumptions that affect amounts reported in the Condensed Consolidated Financial Statements and accompanying notes. Actual results may differ from those estimates. Revenue from Contracts with Customers (Topic 606) The Company recognizes certain revenue under the core principle of Topic 606. This requires an entity to recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. Lease revenue is not within the scope of Topic 606. To achieve the core principle, the Company applies the five step model specified in the guidance. See the New Accounting Pronouncements section below for additional information. Revenue that is accounted for under Topic 606 is segregated on the Company’s Condensed Consolidated Statements of Income in the Other operating line item. This line item includes parking income, rental lease guaranty income, management fee income and other miscellaneous income. Below is a detail of the amounts by category: (in thousands) Three Months Ended September 30, Nine Months Ended September 30, Type of Revenue 2018 2017 2018 2017 Parking income $ 1,752 $ 1,669 $ 5,197 $ 4,907 Rental lease guaranty 168 168 488 545 Management fee income 68 70 205 237 Miscellaneous 22 40 83 127 $ 2,010 $ 1,947 $ 5,973 $ 5,816 The Company’s three major types of revenue that are accounted for under Topic 606 that are listed above are all accounted for as the performance obligation is satisfied. The performance obligations that are identified for each of these items are satisfied over time and the Company recognizes revenue monthly based on this principle. Reclassifications Condensed Consolidated Statements of Income Certain reclassifications have been made on the Company's Condensed Consolidated Statements of Income. After the adoption of Accounting Standards Update ("ASU") 2014-08, "Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity," the Company's dispositions have not met the updated definition to be reported as discontinued operations. The Company had some residual impact from properties that were identified as discontinued operations prior to the adoption of ASU 2014-08. These amounts are considered immaterial and have been reclassified for the prior year presentation on the Company's Condensed Consolidated Statements of Income. Three months ended September 30, 2017 Nine months ended September 30, 2017 (in thousands) As Previously Reported As Reclassified As Previously Reported As Reclassified EXPENSES Property operating expense $ 40,626 $ 40,628 $ 116,644 $ 116,663 Bad debt, net 14 4 185 175 OTHER INCOME (EXPENSE) Gain on sales of properties (7 ) (7 ) 39,519 39,525 INCOME FROM CONTINUING OPERATIONS $ 3,165 $ 3,173 $ 60,247 $ 60,243 DISCONTINUED OPERATIONS Income (loss) from discontinued operations $ 8 $ — $ (9 ) $ — Gain on sales of properties — — 5 — INCOME (LOSS) FROM DISCONTINUED OPERATIONS $ 8 $ — $ (4 ) $ — New Accounting Pronouncements Accounting Standards Update No. 2014-09 and No. 2015-14 In May 2014, the Financial Accounting Standards Board ("FASB") issued ASU No. 2014-09, "Revenue from Contracts with Customers," a comprehensive new revenue recognition standard that supersedes most existing revenue recognition guidance, including sales of real estate. This standard's core principle is that a company will recognize revenue when it transfers goods or services to customers in amounts that reflect the consideration to which the company expects to be entitled in exchange for those goods and services. However, leasing contracts, representing the major source of the Company's revenues, are not within the scope of the new standard and will continue to be accounted for under other standards. In August 2015, the FASB issued ASU No. 2015-14, "Revenue from Contracts with Customers (Topic 606); Deferral of the Effective Date." This standard was effective for the Company for annual and interim periods beginning after December 15, 2017 with early adoption permitted only as of annual reporting periods beginning after December 15, 2016, including interim periods within that year. The Company adopted this standard by using the full retrospective adoption method beginning on January 1, 2018. The Company's revenue-producing contracts are primarily leases that are not within the scope of this standard. As a result, the adoption of this standard did not have a material impact on the timing and measurement of the Company's leasing revenues. The Company has determined that parking income, rental lease guaranty income and management fee income are within the scope of Topic 606. However, these items were determined to have the same pattern of revenue recognition that the Company had historically recognized. The Company reclassified these amounts along with all other items that are accounted for within the scope of Topic 606 into the Other operating line item on the Company's Condensed Consolidated Statements of Income. This line item historically contained the revenue associated with rental lease guaranty income, management fee income and other non-lease revenue. The Company reclassified parking income from rental income to other operating income. The following table represents the impact of the adoption of this standard on the Company's Condensed Consolidated Statements of Income for the three and nine months ended September 30, 2017 : Three months ended September 30, 2017 Nine months ended September 30, 2017 (in thousands) As Reported As Reclassified As Reported As Reclassified REVENUES Rental income $ 106,561 $ 105,078 $ 315,519 $ 311,171 Other operating 392 1,947 1,249 5,816 $ 106,953 $ 107,025 $ 316,768 $ 316,987 OTHER INCOME (EXPENSE) Interest and other income, net $ 426 $ 354 $ 616 $ 396 NET INCOME $ 3,173 $ 3,173 $ 60,243 $ 60,243 Accounting Standards Update No. 2016-02, No. 2018-01 and No. 2018-11 In February 2016, the FASB issued ASU 2016-02, "Leases." In January 2018, the FASB issued ASU 2018-01, "Leases - Land Easement Practical Expedient for Transition to Topic 842," and in July 2018, the FASB issued ASU 2018-10, "Codification Improvements to Topic 842, Leases" and ASU 2018-11, "Leases - Targeted Improvements." These accounting standard updates are collectively referred to as "Topic 842." Topic 842 provides several practical expedients that the Company expects to elect. These are (a) the package of practical expedients offered that allows an entity not to reassess upon adoption (i) whether an expired or existing contract contains a lease, (ii) lease classification related to expired or existing lease arrangements, and (iii) whether costs incurred on expired or existing leases qualify as initial direct costs, and (b) the practical expedient not to separate certain non-lease components, such as common area maintenance, from the lease component if (i) the timing and pattern of transfer are the same for the non-lease component and associated lease component, and (ii) the lease component would be classified as an operating lease if accounted for separately. For lessees, the new standard establishes a right-of-use ("ROU") model that requires a lessee to record a ROU asset and a lease liability on the balance sheet for all leases with terms longer than 12 months. Leases will be classified as either finance or operating, with the classification affecting the pattern of expense recognition in the income statement. The Company expects that most of the leases where the Company is the lessee will be recorded on the Company's balance sheet as operating leases. These leases are primarily ground leases, but also include the Company's corporate office lease, management office leases in third party buildings and certain copier and postage machine leases. The impact to the Company's Consolidated Balance Sheets has not yet been determined. The Company is in the process of working with consultants to determine the appropriate discount rate required to calculate the present value of the future lease payments for ground leases that have lease terms longer than typical secured financing allows. For lessors, the new standard requires a lessor to classify leases as either sales-type, direct-financing or operating. A lease will be treated as a sale if it is considered to transfer control of the underlying asset, to the lessee. A lease will be classified as direct-financing if risks and rewards are conveyed without the transfer of control. Otherwise, the lease is treated as an operating lease. Lessor accounting remains largely unchanged with some exceptions including the concept of separating lease and nonlease components. Nonlease components, such as common area maintenance, will be accounted for under Topic 606 and separated from the lease payments. However, the Company will elect the lessor practical expedient allowing the Company to not separate these components when certain conditions are met. The Company does not expect a material impact from the adoption of Topic 842 related to leases where the Company is the lessor. The new standard is effective for the Company on January 1, 2019. Topic 842 provides two transition alternatives. The Company expects to choose the optional transition method available to apply the guidance in Accounting Standards Codification Topic 840 in the comparative periods presented in the year Topic 842 is adopted. Topic 842 includes extensive quantitative and qualitative disclosures as compared to Topic 840, Leases, for both lessees and lessors. The Company is continuing to evaluate the impact from the adoption of this new standard on the Consolidated Financial Statements and related notes. Accounting Standards Update No. 2016-13 In June 2016, the FASB issued ASU 2016-13, "Measurement of Credit Losses on Financial Instruments." This update is intended to improve financial reporting by requiring timelier recognition of credit losses on loans and other financial instruments that are not accounted for at fair value through net income, including loans held for investment, held-to-maturity debt securities, trade and other receivables, net investment in leases and other such commitments. This update requires that financial statement assets measured at an amortized cost and certain other financial instruments be presented at the net amount expected to be collected, through an allowance for credit losses that is deducted from the amortized cost basis. This standard is effective for annual and interim periods beginning after December 15, 2019 with early adoption permitted. The Company is in the initial stages of evaluating the impact from the adoption of this new standard on the Consolidated Financial Statements and related notes. Accounting Standards Update No. 2017-04 In January 2017, the FASB issued ASU 2017-04, "Simplifying the Test for Goodwill Impairment." This update eliminates Step 2 of the goodwill impairment test. As such, an entity will perform its annual, or interim, goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. An entity should recognize a goodwill impairment charge for the amount by which the reporting unit's carrying amount exceeds its fair value. This standard is effective for the Company for annual and interim periods beginning after December 15, 2019. The Company does not expect a material impact on the Consolidated Financial Statements and related notes from the adoption of this standard. Accounting Standards Update No. 2017-05 In February 2017, the FASB issued ASU 2017-05, "Other Income - Gains and Losses from the Derecognition of Nonfinancial Assets." This update defines an in-substance nonfinancial asset, unifies guidance related to partial sales of nonfinancial assets, eliminates rules specifically addressing the sales of real estate, removes exceptions to the financial asset derecognition model and clarifies the accounting for contributions of nonfinancial assets to joint ventures. The Company adopted this standard as of January 1, 2018 on the full retrospective adoption method. The adoption of this standard did not have a material impact to the Consolidated Financial Statements and related notes. Accounting Standards Update No. 2017-09

Real Estate Investments

Real Estate Investments	9 Months Ended
	Sep. 30, 2018
Business Combinations [Abstract]
Real Estate Investments	Real Estate Investments 2018 Acquisitions The following table details the Company's acquisitions for the nine months ended September 30, 2018 : (Dollars in millions) Type (1) Date Purchase Price Mortgage (2) Cash (3) Real Other (4) Square (Unaudited) Seattle, Washington MOB 5/4/18 $ 7.8 $ — $ 7.8 $ 7.8 $ — 13,314 Denver, Colorado (5) MOB, OFC 5/18/18 25.0 (8.0 ) 16.6 25.1 (0.4 ) 187,861 Oklahoma City, Oklahoma MOB 5/21/18 11.4 — 11.4 11.5 (0.1 ) 82,647 Seattle, Washington MOB 6/29/18 26.2 — 26.2 26.7 (0.5 ) 86,942 Denver, Colorado MOB 8/24/18 4.1 — 4.2 4.2 — 17,084 $ 74.5 $ (8.0 ) $ 66.2 $ 75.3 $ (1.0 ) 387,848 ______ (1) MOB = medical office building; OFC = office (2) The mortgage note payable assumed in the acquisition does not reflect the fair value premium totaling $0.1 million recorded by the Company upon acquisition (included in Other). (3) Cash consideration excludes prorations of revenue and expense due to/from seller at the time of the acquisition. (4) Includes other assets acquired, liabilities assumed, intangibles recognized at acquisition and fair value adjustments on debt assumed. (5) Includes two properties. 2018 Dispositions The following table details the Company's dispositions for the nine months ended September 30, 2018 : (Dollars in millions) Type (1) Date Sales Price Closing Adjustments Net Net Real Other (including receivables) (2) Gain Square Unaudited ) Virginia (3) (4) MOB, OFC 4/26/18 $ 46.2 $ — $ 46.2 $ 23.9 $ — $ 22.3 460,881 Michigan (3) (5) SNF 6/27/18 9.5 (0.7 ) 8.8 3.4 — 5.4 121,672 Missouri MOB 8/30/18 9.8 (0.5 ) 9.3 7.5 0.5 1.3 70,893 Total dispositions $ 65.5 $ (1.2 ) $ 64.3 $ 34.8 $ 0.5 $ 29.0 653,446 ______ (1) MOB = medical office building; OFC = office; SNF = skilled nursing facility (2) Includes straight-line rent receivables and leasing commissions. (3) Previously classified as held for sale. (4) Includes seven properties, comprised of five single-tenant net lease buildings and two multi-tenant buildings. These buildings were sold pursuant to the exercise of a fixed-price purchase option. (5) Includes five skilled nursing facilities. Sales price includes $0.5 million of forfeited earnest money from a prior terminated transaction. Non-monetary Exchange On June 29, 2018, the Company completed the swap of a non-revenue producing garage that was built by the Company in 2012 located in Denver, Colorado for 20.5 acres of land adjacent to the Catholic Health Initiative’s St. Anthony Hospital campus. A portion of this land, approximately 4.6 acres, has been allocated to an existing medical office building that was developed by the Company in 2017. This building is located on land previously ground leased from the hospital. The remaining land has been recorded in land held for development. The land acquired was appraised for $5.8 million . The Company had a net investment of $3.9 million in the parking garage and recognized a gain of $1.9 million in connection with this transaction. Assets Held for Sale As of December 31, 2017 , the Company had eight properties classified as held for sale. The following changes to assets held for sale have occurred during 2018: • The Company reclassified five single-tenant net leased properties to held for sale as of March 31, 2018. • In April 2018, the Company sold seven properties, comprised of five single-tenant net leased properties and two multi-tenanted properties. The Company recognized a gain on disposition of approximately $22.3 million . • In June 2018, the Company sold five single-tenant net leased properties. The Company recognized a gain on disposition of approximately $5.4 million . As of September 30, 2018 , the Company had one property remaining classified as held for sale. The table below reflects the assets and liabilities of the properties classified as held for sale as of September 30, 2018 and December 31, 2017 : (Dollars in thousands) September 30, December 31, Balance Sheet data: Land $ 1,125 $ 4,636 Buildings, improvements and lease intangibles 18,231 63,654 Personal property — 82 19,356 68,372 Accumulated depreciation (10,657 ) (35,790 ) Real estate assets held for sale, net 8,699 32,582 Other assets, net 127 565 Assets held for sale, net $ 8,826 $ 33,147 Accounts payable and accrued liabilities $ 119 $ 38 Other liabilities 22 55 Liabilities of properties held for sale $ 141 $ 93

Notes and Bonds Payable

Notes and Bonds Payable	9 Months Ended
	Sep. 30, 2018
Debt Disclosure [Abstract]
Notes and Bonds Payable	Notes and Bonds Payable The table below details the Company’s notes and bonds payable. Maturity Dates Balance as of Effective Interest Rate as of (Dollars in thousands) September 30, 2018 December 31, 2017 September 30, 2018 Unsecured Credit Facility 7/20 $ 245,000 $ 189,000 3.26 % Unsecured Term Loan Facility, net of issuance costs (1) 12/22 149,132 148,994 3.41 % Senior Notes due 2023, net of discount and issuance costs 4/23 248,013 247,703 3.95 % Senior Notes due 2025, net of discount and issuance costs (2) 5/25 248,219 248,044 4.08 % Senior Notes due 2028, net of discount and issuance costs 1/28 295,087 294,757 3.84 % Mortgage notes payable, net of discounts and issuance costs and including premiums 12/18-5/40 159,308 155,382 4.83 % $ 1,344,759 $ 1,283,880 ______ (1) The effective interest rate includes the impact of interest rate swaps on $25.0 million and $50.0 million of the outstanding balance at a rate of 2.18% and 2.46% , respectively (plus the applicable margin rate, currently 110 basis points). (2) The effective interest rate includes the impact of the $1.7 million

Derivative Financial Instrument

Derivative Financial Instruments	9 Months Ended
	Sep. 30, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	Derivative Financial Instruments Risk Management Objective of Using Derivatives The Company is exposed to certain risks arising from both its business operations and economic conditions. The Company principally manages its exposures to a wide variety of business and operational risks through management of its core business activities. The Company manages economic risks, including interest rate, liquidity, and credit risk, primarily by managing the amount, sources, and duration of its assets and liabilities and the use of derivative financial instruments. Specifically, the Company enters into derivative financial instruments to manage exposures that arise from business activities that result in the receipt or payment of future known and uncertain cash amounts, the value of which are determined by interest rates. The Company’s derivative financial instruments are used to manage differences in the amount, timing, and duration of the Company’s known or expected cash receipts and its known or expected cash payments principally related to the Company’s borrowings. Cash Flow Hedges of Interest Rate Risk The Company’s objectives in using interest rate derivatives are to add stability to interest expense and to manage its exposure to interest rate movements. To accomplish this objective, the Company primarily uses interest rate swaps as part of its interest rate risk management strategy. Interest rate swaps designated as cash flow hedges involve the receipt of variable amounts from a counterparty in exchange for the Company making fixed-rate payments over the life of the agreements without exchange of the underlying notional amount. Such derivatives were used to hedge the variable cash flows associated with existing variable-rate debt. For derivatives designated and that qualify as cash flow hedges of interest rate risk, the gain or loss on the derivative is recorded in Accumulated other comprehensive income (loss) and subsequently reclassified into interest expense in the same period(s) during which the hedged transaction affects earnings. Amounts reported in Accumulated other comprehensive income (loss) related to derivatives will be reclassified to interest expense as interest payments are made on the Company’s variable-rate debt. As of September 30, 2018 , the Company had four outstanding interest rate derivatives that were designated as cash flow hedges of interest rate risk: Derivative Instrument Number of Instruments Notional Amount (in millions) Interest rate swaps 4 $75.0 Tabular Disclosure of Fair Values of Derivative Instruments on the Balance Sheet The table below presents the fair value of the Company's derivative financial instruments, as well as their classification on the Condensed Consolidated Balance Sheet as of September 30, 2018 . Asset Derivatives Balance at September 30, 2018 (Dollars in thousands) Balance Sheet Location Fair Value Derivatives designated as hedging instruments Interest rate swaps Other assets $ 1,579 Total derivatives designated as hedging instruments $ 1,579 Tabular Disclosure of the Effect of Cash Flow Hedge Accounting on Accumulated Other Comprehensive Income (Loss) The table below presents the effect of cash flow hedge accounting on Accumulated Other Comprehensive Income (Loss) ("OCI") during the nine months ended September 30, 2018 and 2017 related to the Company's outstanding interest rate swaps. Amount of Gain Recognized in OCI on Derivative Amount of Loss Reclassified from OCI into Income (Dollars in thousands) 2018 2018 2017 Interest rate products $ 1,403 Interest expense $ 243 $ — Settled interest rate swaps — Interest expense 126 127 $ 1,403 Total interest expense $ 369 $ 127 Credit-risk-related Contingent Features The Company's agreements with each of its derivative counterparties contain a cross-default provision under which the Company could be declared in default of its derivative obligations if repayment of the underlying indebtedness is accelerated by the lender due to the Company's default on the indebtedness. The Company estimates that $0.2 million related to active interest rate swaps will be reclassified from OCI as a decrease to interest expense over the next 12 months, and that $0.2 million

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2018
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Legal Proceedings The Company is, from time to time, involved in litigation arising in the ordinary course of business. The Company is not aware of any pending or threatened litigation that, if resolved against the Company, would have a material adverse effect on the Company’s consolidated financial position, results of operations or cash flows. Redevelopment Activity The Company is redeveloping a medical office building in Charlotte, North Carolina, which includes a 38,000 square foot vertical expansion. As of September 30, 2018 , the Company has funded approximately $9.2 million on the redevelopment of this property. The project is expected to be completed in the first quarter of 2019. Development Activity The Company began the development of a 151,000 square foot medical office building in Seattle, Washington during 2017. As of September 30, 2018 , the Company has funded approximately $18.0 million

Stockholders' Equity

Stockholders' Equity	9 Months Ended
	Sep. 30, 2018
Equity [Abstract]
Stockholders' Equity	Stockholders' Equity Common Stock The following table provides a reconciliation of the beginning and ending shares of common stock outstanding for the nine months ended September 30, 2018 and the year ended December 31, 2017 : September 30, 2018 December 31, 2017 Balance, beginning of period 125,131,593 116,416,900 Issuance of common stock 20,395 8,395,607 Nonvested share-based awards, net of withheld shares 85,196 319,086 Balance, end of period 125,237,184 125,131,593 At-The-Market Equity Offering Program No shares were sold under the Company's At-the-Market Equity Offering Program during the nine months ended September 30, 2018. The Company had 5,868,697 authorized shares remaining available to be sold under the current sales agreements as of October 26, 2018 . Common Stock Dividends During the nine months ended September 30, 2018 , the Company declared and paid common stock dividends totaling $0.90 per share. On October 30, 2018 , the Company declared a quarterly common stock dividend in the amount of $0.30 per share payable on November 30, 2018 to stockholders of record on November 15, 2018 . Accumulated Other Comprehensive Income (Loss) As of September 30, 2018, the Company had four outstanding interest rate swaps to hedge the variable cash flows associated with existing variable-rate debt. The Company continues to amortize the 2015 settlement of forward-starting interest rate swaps that were entered into in connection with the issuance of the Company's Senior Notes due 2025. This amount will be reclassified out of OCI impacting net income over the 10 -year term of the associated senior note issuance. See Note 4 for more information regarding the Company's derivative instruments. The following table represents the changes in balances of each component and the amounts reclassified out of OCI related to the Company during the nine months ended September 30, 2018 and 2017 : Forward-starting Interest Rate Swaps (Dollars in thousands) 2018 2017 Beginning balance $ (1,299 ) $ (1,401 ) Gains arising during the period related to active interest rate swaps 1,403 — Amounts reclassified from accumulated other comprehensive (income) loss 369 127 Net accumulated other comprehensive income 1,772 127 Ending balance $ 473 $ (1,274 ) The following table represents the details regarding the reclassifications from OCI during the nine months ended September 30, 2018 : Details about accumulated other comprehensive income (loss) components Amount reclassified from accumulated other comprehensive income (loss) Affected line item in the statement where net income is presented (Dollars in thousands) Amounts reclassified from accumulated other comprehensive income (loss) related to settled interest rate swaps $ 126 Interest Expense Amounts reclassified from accumulated other comprehensive income (loss) related to current interest rate swaps 243 Interest Expense $ 369 Earnings Per Common Share The Company uses the two-class method of computing net earnings per common shares. The Company's nonvested share-based awards are considered participating securities pursuant to the two-class method. The following table sets forth the computation of basic and diluted earnings per common share for the three and nine months ended September 30, 2018 and 2017 . Three Months Ended September 30, Nine Months Ended September 30, (Dollars in thousands, except per share data) 2018 2017 2018 2017 Weighted average Common Shares outstanding Weighted average Common Shares outstanding 125,233,462 120,895,835 125,206,342 117,981,159 Nonvested shares (1,933,653 ) (1,797,686 ) (1,925,589 ) (1,800,180 ) Weighted average Common Shares outstanding—Basic 123,299,809 119,098,149 123,280,753 116,180,979 Weighted average Common Shares outstanding—Basic 123,299,809 119,098,149 123,280,753 116,180,979 Dilutive effect of employee stock purchase plan 52,147 83,242 54,763 96,260 Weighted average Common Shares outstanding—Diluted 123,351,956 119,181,391 123,335,516 116,277,239 Net Income $ 6,548 $ 3,173 $ 53,456 $ 60,243 Dividends paid on nonvested share-based awards (580 ) (538 ) (1,740 ) (1,609 ) Net income applicable to common stockholders $ 5,968 $ 2,635 $ 51,716 $ 58,634 Basic earnings per common share - Net income $ 0.05 $ 0.02 $ 0.42 $ 0.50 Diluted earnings per common share - Net income $ 0.05 $ 0.02 $ 0.42 $ 0.50 Incentive Plans A summary of the activity under the Company's share-based incentive plans for the three and nine months ended September 30, 2018 and 2017 is included in the table below. Three Months Ended September 30, Nine Months Ended September 30, 2018 2017 2018 2017 Share-based awards, beginning of period 1,938,100 1,797,686 1,907,645 1,786,497 Granted — — 107,751 103,615 Vested (5,051 ) — (82,347 ) (92,426 ) Share-based awards, end of period 1,933,049 1,797,686 1,933,049 1,797,686 During the nine months ended September 30, 2018 and 2017 , the Company withheld 22,555 and 16,581 shares of common stock, respectively, from participants to pay estimated withholding taxes related to shares that vested. In addition to the share-based incentive plans, the Company maintains the 2000 Employee Stock Purchase Plan (the "Purchase Plan"). A summary of the activity under the Purchase Plan for the three and nine months ended September 30, 2018 and 2017 is included in the table below. Three Months Ended September 30, Nine Months Ended September 30, 2018 2017 2018 2017 Outstanding and exercisable, beginning of period 350,535 344,572 318,100 316,321 Granted — — 203,836 206,824 Exercised (2,531 ) (5,452 ) (13,236 ) (24,482 ) Forfeited (9,583 ) (9,291 ) (34,489 ) (36,524 ) Expired — — (135,790 ) (132,310 ) Outstanding and exercisable, end of period 338,421 329,829 338,421 329,829

Fair Value of Financial Instrum

Fair Value of Financial Instruments	9 Months Ended
	Sep. 30, 2018
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	Fair Value of Financial Instruments The following methods and assumptions were used to estimate the fair value of each class of financial instrument for which it is practical to estimate that value. Cash and cash equivalents - The carrying amount approximates fair value due to the short term maturity of these investments. Borrowings under the unsecured credit facility due 2020 and unsecured term loan facility due 2022 - The carrying amount approximates fair value because the borrowings are based on variable market interest rates. Senior Notes and Mortgage Notes payable - The fair value of notes and bonds payable is estimated using cash flow analyses, based on the Company’s current interest rates for similar types of borrowing arrangements. Interest rate swap agreements - Interest rate swap agreements are recorded in other liabilities on the Company's Consolidated Balance Sheets at fair value. Fair value is estimated by utilizing pricing models that consider forward yield curves and discount rates. The table below details the fair values and carrying values for notes and bonds payable at September 30, 2018 and December 31, 2017 . September 30, 2018 December 31, 2017 (Dollars in millions) Carrying Value Fair Value Carrying Value Fair Value Notes and bonds payable (1) $ 1,344.8 $ 1,300.2 $ 1,283.9 $ 1,269.7 ______ (1)

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2018
Accounting Policies [Abstract]
Business Overview	Business Overview Healthcare Realty Trust Incorporated (the "Company") is a real estate investment trust ("REIT") that owns, leases, manages, acquires, finances, develops and redevelops income-producing real estate properties associated primarily with the delivery of outpatient healthcare services throughout the United States. As of September 30, 2018 , the Company had gross investments of approximately $3.9 billion in 201 real estate properties located in 27 states totaling approximately 14.8 million square feet. The Company provided leasing and property management services to approximately 11.1 million
Basis of Presentation	Basis of Presentation The Condensed Consolidated Financial Statements have been prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP") for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. They do not include all of the information and footnotes required by GAAP for complete financial statements. However, except as disclosed herein, management believes there has been no material change in the information disclosed in the Notes to the Consolidated Financial Statements included in the Annual Report on Form 10-K for the year ended December 31, 2017 . All material intercompany transactions and balances have been eliminated in consolidation. This interim financial information should be read in conjunction with the Company’s Annual Report on Form 10-K for the year ended December 31, 2017 . Management believes that all adjustments of a normal, recurring nature considered necessary for a fair presentation have been included. In addition, the interim financial information does not necessarily represent or indicate what the operating results will be for the year ending December 31, 2018
Use of Estimates in the Condensed Consolidated Financial Statements	Use of Estimates in the Condensed Consolidated Financial StatementsPreparation of the Condensed Consolidated Financial Statements in accordance with GAAP requires management to make estimates and assumptions that affect amounts reported in the Condensed Consolidated Financial Statements and accompanying notes. Actual results may differ from those estimates.
Revenue from Contracts with Customers (Topic 606)	Revenue from Contracts with Customers (Topic 606) The Company recognizes certain revenue under the core principle of Topic 606. This requires an entity to recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. Lease revenue is not within the scope of Topic 606. To achieve the core principle, the Company applies the five step model specified in the guidance. See the New Accounting Pronouncements section below for additional information. Revenue that is accounted for under Topic 606 is segregated on the Company’s Condensed Consolidated Statements of Income in the Other operating line item. This line item includes parking income, rental lease guaranty income, management fee income and other miscellaneous income. Below is a detail of the amounts by category: (in thousands) Three Months Ended September 30, Nine Months Ended September 30, Type of Revenue 2018 2017 2018 2017 Parking income $ 1,752 $ 1,669 $ 5,197 $ 4,907 Rental lease guaranty 168 168 488 545 Management fee income 68 70 205 237 Miscellaneous 22 40 83 127 $ 2,010 $ 1,947 $ 5,973 $ 5,816
New Accounting Pronouncements	New Accounting Pronouncements Accounting Standards Update No. 2014-09 and No. 2015-14 In May 2014, the Financial Accounting Standards Board ("FASB") issued ASU No. 2014-09, "Revenue from Contracts with Customers," a comprehensive new revenue recognition standard that supersedes most existing revenue recognition guidance, including sales of real estate. This standard's core principle is that a company will recognize revenue when it transfers goods or services to customers in amounts that reflect the consideration to which the company expects to be entitled in exchange for those goods and services. However, leasing contracts, representing the major source of the Company's revenues, are not within the scope of the new standard and will continue to be accounted for under other standards. In August 2015, the FASB issued ASU No. 2015-14, "Revenue from Contracts with Customers (Topic 606); Deferral of the Effective Date." This standard was effective for the Company for annual and interim periods beginning after December 15, 2017 with early adoption permitted only as of annual reporting periods beginning after December 15, 2016, including interim periods within that year. The Company adopted this standard by using the full retrospective adoption method beginning on January 1, 2018. The Company's revenue-producing contracts are primarily leases that are not within the scope of this standard. As a result, the adoption of this standard did not have a material impact on the timing and measurement of the Company's leasing revenues. The Company has determined that parking income, rental lease guaranty income and management fee income are within the scope of Topic 606. However, these items were determined to have the same pattern of revenue recognition that the Company had historically recognized. The Company reclassified these amounts along with all other items that are accounted for within the scope of Topic 606 into the Other operating line item on the Company's Condensed Consolidated Statements of Income. This line item historically contained the revenue associated with rental lease guaranty income, management fee income and other non-lease revenue. The Company reclassified parking income from rental income to other operating income. The following table represents the impact of the adoption of this standard on the Company's Condensed Consolidated Statements of Income for the three and nine months ended September 30, 2017 : Three months ended September 30, 2017 Nine months ended September 30, 2017 (in thousands) As Reported As Reclassified As Reported As Reclassified REVENUES Rental income $ 106,561 $ 105,078 $ 315,519 $ 311,171 Other operating 392 1,947 1,249 5,816 $ 106,953 $ 107,025 $ 316,768 $ 316,987 OTHER INCOME (EXPENSE) Interest and other income, net $ 426 $ 354 $ 616 $ 396 NET INCOME $ 3,173 $ 3,173 $ 60,243 $ 60,243 Accounting Standards Update No. 2016-02, No. 2018-01 and No. 2018-11 In February 2016, the FASB issued ASU 2016-02, "Leases." In January 2018, the FASB issued ASU 2018-01, "Leases - Land Easement Practical Expedient for Transition to Topic 842," and in July 2018, the FASB issued ASU 2018-10, "Codification Improvements to Topic 842, Leases" and ASU 2018-11, "Leases - Targeted Improvements." These accounting standard updates are collectively referred to as "Topic 842." Topic 842 provides several practical expedients that the Company expects to elect. These are (a) the package of practical expedients offered that allows an entity not to reassess upon adoption (i) whether an expired or existing contract contains a lease, (ii) lease classification related to expired or existing lease arrangements, and (iii) whether costs incurred on expired or existing leases qualify as initial direct costs, and (b) the practical expedient not to separate certain non-lease components, such as common area maintenance, from the lease component if (i) the timing and pattern of transfer are the same for the non-lease component and associated lease component, and (ii) the lease component would be classified as an operating lease if accounted for separately. For lessees, the new standard establishes a right-of-use ("ROU") model that requires a lessee to record a ROU asset and a lease liability on the balance sheet for all leases with terms longer than 12 months. Leases will be classified as either finance or operating, with the classification affecting the pattern of expense recognition in the income statement. The Company expects that most of the leases where the Company is the lessee will be recorded on the Company's balance sheet as operating leases. These leases are primarily ground leases, but also include the Company's corporate office lease, management office leases in third party buildings and certain copier and postage machine leases. The impact to the Company's Consolidated Balance Sheets has not yet been determined. The Company is in the process of working with consultants to determine the appropriate discount rate required to calculate the present value of the future lease payments for ground leases that have lease terms longer than typical secured financing allows. For lessors, the new standard requires a lessor to classify leases as either sales-type, direct-financing or operating. A lease will be treated as a sale if it is considered to transfer control of the underlying asset, to the lessee. A lease will be classified as direct-financing if risks and rewards are conveyed without the transfer of control. Otherwise, the lease is treated as an operating lease. Lessor accounting remains largely unchanged with some exceptions including the concept of separating lease and nonlease components. Nonlease components, such as common area maintenance, will be accounted for under Topic 606 and separated from the lease payments. However, the Company will elect the lessor practical expedient allowing the Company to not separate these components when certain conditions are met. The Company does not expect a material impact from the adoption of Topic 842 related to leases where the Company is the lessor. The new standard is effective for the Company on January 1, 2019. Topic 842 provides two transition alternatives. The Company expects to choose the optional transition method available to apply the guidance in Accounting Standards Codification Topic 840 in the comparative periods presented in the year Topic 842 is adopted. Topic 842 includes extensive quantitative and qualitative disclosures as compared to Topic 840, Leases, for both lessees and lessors. The Company is continuing to evaluate the impact from the adoption of this new standard on the Consolidated Financial Statements and related notes. Accounting Standards Update No. 2016-13 In June 2016, the FASB issued ASU 2016-13, "Measurement of Credit Losses on Financial Instruments." This update is intended to improve financial reporting by requiring timelier recognition of credit losses on loans and other financial instruments that are not accounted for at fair value through net income, including loans held for investment, held-to-maturity debt securities, trade and other receivables, net investment in leases and other such commitments. This update requires that financial statement assets measured at an amortized cost and certain other financial instruments be presented at the net amount expected to be collected, through an allowance for credit losses that is deducted from the amortized cost basis. This standard is effective for annual and interim periods beginning after December 15, 2019 with early adoption permitted. The Company is in the initial stages of evaluating the impact from the adoption of this new standard on the Consolidated Financial Statements and related notes. Accounting Standards Update No. 2017-04 In January 2017, the FASB issued ASU 2017-04, "Simplifying the Test for Goodwill Impairment." This update eliminates Step 2 of the goodwill impairment test. As such, an entity will perform its annual, or interim, goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. An entity should recognize a goodwill impairment charge for the amount by which the reporting unit's carrying amount exceeds its fair value. This standard is effective for the Company for annual and interim periods beginning after December 15, 2019. The Company does not expect a material impact on the Consolidated Financial Statements and related notes from the adoption of this standard. Accounting Standards Update No. 2017-05 In February 2017, the FASB issued ASU 2017-05, "Other Income - Gains and Losses from the Derecognition of Nonfinancial Assets." This update defines an in-substance nonfinancial asset, unifies guidance related to partial sales of nonfinancial assets, eliminates rules specifically addressing the sales of real estate, removes exceptions to the financial asset derecognition model and clarifies the accounting for contributions of nonfinancial assets to joint ventures. The Company adopted this standard as of January 1, 2018 on the full retrospective adoption method. The adoption of this standard did not have a material impact to the Consolidated Financial Statements and related notes. Accounting Standards Update No. 2017-09

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	9 Months Ended
	Sep. 30, 2018
Accounting Policies [Abstract]
Disaggregation of revenue	Below is a detail of the amounts by category: (in thousands) Three Months Ended September 30, Nine Months Ended September 30, Type of Revenue 2018 2017 2018 2017 Parking income $ 1,752 $ 1,669 $ 5,197 $ 4,907 Rental lease guaranty 168 168 488 545 Management fee income 68 70 205 237 Miscellaneous 22 40 83 127 $ 2,010 $ 1,947 $ 5,973 $ 5,816
Schedule of reclassifications	These amounts are considered immaterial and have been reclassified for the prior year presentation on the Company's Condensed Consolidated Statements of Income. Three months ended September 30, 2017 Nine months ended September 30, 2017 (in thousands) As Previously Reported As Reclassified As Previously Reported As Reclassified EXPENSES Property operating expense $ 40,626 $ 40,628 $ 116,644 $ 116,663 Bad debt, net 14 4 185 175 OTHER INCOME (EXPENSE) Gain on sales of properties (7 ) (7 ) 39,519 39,525 INCOME FROM CONTINUING OPERATIONS $ 3,165 $ 3,173 $ 60,247 $ 60,243 DISCONTINUED OPERATIONS Income (loss) from discontinued operations $ 8 $ — $ (9 ) $ — Gain on sales of properties — — 5 — INCOME (LOSS) FROM DISCONTINUED OPERATIONS $ 8 $ — $ (4 ) $ —
Impact of Adoption of New Accounting Standard	The following table represents the impact of the adoption of this standard on the Company's Condensed Consolidated Statements of Income for the three and nine months ended September 30, 2017 : Three months ended September 30, 2017 Nine months ended September 30, 2017 (in thousands) As Reported As Reclassified As Reported As Reclassified REVENUES Rental income $ 106,561 $ 105,078 $ 315,519 $ 311,171 Other operating 392 1,947 1,249 5,816 $ 106,953 $ 107,025 $ 316,768 $ 316,987 OTHER INCOME (EXPENSE) Interest and other income, net $ 426 $ 354 $ 616 $ 396 NET INCOME $ 3,173 $ 3,173 $ 60,243 $ 60,243

Real Estate Investments (Tables

Real Estate Investments (Tables)	9 Months Ended
	Sep. 30, 2018
Business Combinations [Abstract]
Summary of acquisitions	The following table details the Company's acquisitions for the nine months ended September 30, 2018 : (Dollars in millions) Type (1) Date Purchase Price Mortgage (2) Cash (3) Real Other (4) Square (Unaudited) Seattle, Washington MOB 5/4/18 $ 7.8 $ — $ 7.8 $ 7.8 $ — 13,314 Denver, Colorado (5) MOB, OFC 5/18/18 25.0 (8.0 ) 16.6 25.1 (0.4 ) 187,861 Oklahoma City, Oklahoma MOB 5/21/18 11.4 — 11.4 11.5 (0.1 ) 82,647 Seattle, Washington MOB 6/29/18 26.2 — 26.2 26.7 (0.5 ) 86,942 Denver, Colorado MOB 8/24/18 4.1 — 4.2 4.2 — 17,084 $ 74.5 $ (8.0 ) $ 66.2 $ 75.3 $ (1.0 ) 387,848 ______ (1) MOB = medical office building; OFC = office (2) The mortgage note payable assumed in the acquisition does not reflect the fair value premium totaling $0.1 million recorded by the Company upon acquisition (included in Other). (3) Cash consideration excludes prorations of revenue and expense due to/from seller at the time of the acquisition. (4) Includes other assets acquired, liabilities assumed, intangibles recognized at acquisition and fair value adjustments on debt assumed. (5) Includes two properties.
Summary of dispositions	The following table details the Company's dispositions for the nine months ended September 30, 2018 : (Dollars in millions) Type (1) Date Sales Price Closing Adjustments Net Net Real Other (including receivables) (2) Gain Square Unaudited ) Virginia (3) (4) MOB, OFC 4/26/18 $ 46.2 $ — $ 46.2 $ 23.9 $ — $ 22.3 460,881 Michigan (3) (5) SNF 6/27/18 9.5 (0.7 ) 8.8 3.4 — 5.4 121,672 Missouri MOB 8/30/18 9.8 (0.5 ) 9.3 7.5 0.5 1.3 70,893 Total dispositions $ 65.5 $ (1.2 ) $ 64.3 $ 34.8 $ 0.5 $ 29.0 653,446 ______ (1) MOB = medical office building; OFC = office; SNF = skilled nursing facility (2) Includes straight-line rent receivables and leasing commissions. (3) Previously classified as held for sale. (4) Includes seven properties, comprised of five single-tenant net lease buildings and two multi-tenant buildings. These buildings were sold pursuant to the exercise of a fixed-price purchase option. (5) Includes five skilled nursing facilities. Sales price includes $0.5 million
Assets held for sale	The table below reflects the assets and liabilities of the properties classified as held for sale as of September 30, 2018 and December 31, 2017 : (Dollars in thousands) September 30, December 31, Balance Sheet data: Land $ 1,125 $ 4,636 Buildings, improvements and lease intangibles 18,231 63,654 Personal property — 82 19,356 68,372 Accumulated depreciation (10,657 ) (35,790 ) Real estate assets held for sale, net 8,699 32,582 Other assets, net 127 565 Assets held for sale, net $ 8,826 $ 33,147 Accounts payable and accrued liabilities $ 119 $ 38 Other liabilities 22 55 Liabilities of properties held for sale $ 141 $ 93

Notes and Bonds Payable (Tables

Notes and Bonds Payable (Tables)	9 Months Ended
	Sep. 30, 2018
Debt Disclosure [Abstract]
Schedule of Debt	The table below details the Company’s notes and bonds payable. Maturity Dates Balance as of Effective Interest Rate as of (Dollars in thousands) September 30, 2018 December 31, 2017 September 30, 2018 Unsecured Credit Facility 7/20 $ 245,000 $ 189,000 3.26 % Unsecured Term Loan Facility, net of issuance costs (1) 12/22 149,132 148,994 3.41 % Senior Notes due 2023, net of discount and issuance costs 4/23 248,013 247,703 3.95 % Senior Notes due 2025, net of discount and issuance costs (2) 5/25 248,219 248,044 4.08 % Senior Notes due 2028, net of discount and issuance costs 1/28 295,087 294,757 3.84 % Mortgage notes payable, net of discounts and issuance costs and including premiums 12/18-5/40 159,308 155,382 4.83 % $ 1,344,759 $ 1,283,880 ______ (1) The effective interest rate includes the impact of interest rate swaps on $25.0 million and $50.0 million of the outstanding balance at a rate of 2.18% and 2.46% , respectively (plus the applicable margin rate, currently 110 basis points). (2) The effective interest rate includes the impact of the $1.7 million settlement of a forward-starting interest rate swap that is included in Accumulated other comprehensive income (loss) on the Company's Condensed Consolidated Balance Sheets.

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	9 Months Ended
	Sep. 30, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss)	As of September 30, 2018 , the Company had four outstanding interest rate derivatives that were designated as cash flow hedges of interest rate risk: Derivative Instrument Number of Instruments Notional Amount (in millions) Interest rate swaps 4 $75.0
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value	The table below presents the fair value of the Company's derivative financial instruments, as well as their classification on the Condensed Consolidated Balance Sheet as of September 30, 2018 . Asset Derivatives Balance at September 30, 2018 (Dollars in thousands) Balance Sheet Location Fair Value Derivatives designated as hedging instruments Interest rate swaps Other assets $ 1,579 Total derivatives designated as hedging instruments $ 1,579
Schedule of Derivative Instruments, Effect on Other Comprehensive Income (Loss)	The table below presents the effect of cash flow hedge accounting on Accumulated Other Comprehensive Income (Loss) ("OCI") during the nine months ended September 30, 2018 and 2017 related to the Company's outstanding interest rate swaps. Amount of Gain Recognized in OCI on Derivative Amount of Loss Reclassified from OCI into Income (Dollars in thousands) 2018 2018 2017 Interest rate products $ 1,403 Interest expense $ 243 $ — Settled interest rate swaps — Interest expense 126 127 $ 1,403 Total interest expense $ 369 $ 127

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	9 Months Ended
	Sep. 30, 2018
Equity [Abstract]
Reconciliation of beginning and ending common stock outstanding	The following table provides a reconciliation of the beginning and ending shares of common stock outstanding for the nine months ended September 30, 2018 and the year ended December 31, 2017 : September 30, 2018 December 31, 2017 Balance, beginning of period 125,131,593 116,416,900 Issuance of common stock 20,395 8,395,607 Nonvested share-based awards, net of withheld shares 85,196 319,086 Balance, end of period 125,237,184 125,131,593
Schedule of accumulated other comprehensive income (loss)	The following table represents the changes in balances of each component and the amounts reclassified out of OCI related to the Company during the nine months ended September 30, 2018 and 2017 : Forward-starting Interest Rate Swaps (Dollars in thousands) 2018 2017 Beginning balance $ (1,299 ) $ (1,401 ) Gains arising during the period related to active interest rate swaps 1,403 — Amounts reclassified from accumulated other comprehensive (income) loss 369 127 Net accumulated other comprehensive income 1,772 127 Ending balance $ 473 $ (1,274 )
Reclassification out of Accumulated Other Comprehensive Income	The following table represents the details regarding the reclassifications from OCI during the nine months ended September 30, 2018 : Details about accumulated other comprehensive income (loss) components Amount reclassified from accumulated other comprehensive income (loss) Affected line item in the statement where net income is presented (Dollars in thousands) Amounts reclassified from accumulated other comprehensive income (loss) related to settled interest rate swaps $ 126 Interest Expense Amounts reclassified from accumulated other comprehensive income (loss) related to current interest rate swaps 243 Interest Expense $ 369
Earnings (loss) per share	The following table sets forth the computation of basic and diluted earnings per common share for the three and nine months ended September 30, 2018 and 2017 . Three Months Ended September 30, Nine Months Ended September 30, (Dollars in thousands, except per share data) 2018 2017 2018 2017 Weighted average Common Shares outstanding Weighted average Common Shares outstanding 125,233,462 120,895,835 125,206,342 117,981,159 Nonvested shares (1,933,653 ) (1,797,686 ) (1,925,589 ) (1,800,180 ) Weighted average Common Shares outstanding—Basic 123,299,809 119,098,149 123,280,753 116,180,979 Weighted average Common Shares outstanding—Basic 123,299,809 119,098,149 123,280,753 116,180,979 Dilutive effect of employee stock purchase plan 52,147 83,242 54,763 96,260 Weighted average Common Shares outstanding—Diluted 123,351,956 119,181,391 123,335,516 116,277,239 Net Income $ 6,548 $ 3,173 $ 53,456 $ 60,243 Dividends paid on nonvested share-based awards (580 ) (538 ) (1,740 ) (1,609 ) Net income applicable to common stockholders $ 5,968 $ 2,635 $ 51,716 $ 58,634 Basic earnings per common share - Net income $ 0.05 $ 0.02 $ 0.42 $ 0.50 Diluted earnings per common share - Net income $ 0.05 $ 0.02 $ 0.42 $ 0.50
Summary of the activity under the Incentive Plan	A summary of the activity under the Company's share-based incentive plans for the three and nine months ended September 30, 2018 and 2017 is included in the table below. Three Months Ended September 30, Nine Months Ended September 30, 2018 2017 2018 2017 Share-based awards, beginning of period 1,938,100 1,797,686 1,907,645 1,786,497 Granted — — 107,751 103,615 Vested (5,051 ) — (82,347 ) (92,426 ) Share-based awards, end of period 1,933,049 1,797,686 1,933,049 1,797,686
Summary of employee stock purchase plan activity	A summary of the activity under the Purchase Plan for the three and nine months ended September 30, 2018 and 2017 is included in the table below. Three Months Ended September 30, Nine Months Ended September 30, 2018 2017 2018 2017 Outstanding and exercisable, beginning of period 350,535 344,572 318,100 316,321 Granted — — 203,836 206,824 Exercised (2,531 ) (5,452 ) (13,236 ) (24,482 ) Forfeited (9,583 ) (9,291 ) (34,489 ) (36,524 ) Expired — — (135,790 ) (132,310 ) Outstanding and exercisable, end of period 338,421 329,829 338,421 329,829

Fair Value of Financial Instr_2

Fair Value of Financial Instruments (Tables)	9 Months Ended
	Sep. 30, 2018
Fair Value Disclosures [Abstract]
Fair value and carrying values for notes and bonds payable, mortgage notes receivable, and notes receivable	The table below details the fair values and carrying values for notes and bonds payable at September 30, 2018 and December 31, 2017 . September 30, 2018 December 31, 2017 (Dollars in millions) Carrying Value Fair Value Carrying Value Fair Value Notes and bonds payable (1) $ 1,344.8 $ 1,300.2 $ 1,283.9 $ 1,269.7 ______ (1)

Summary of Significant Accoun_4

Summary of Significant Accounting Policies (Details) ft² in Millions, $ in Billions	Sep. 30, 2018USD ($)ft²stateproperty
Business Overview:
Gross investment amount, total | $	$ 3.9
Number of real estate properties | property	201
Number of states that the Company owns real estate in, whole units | state	27
Square footage of owned real estate properties	14.8
Approximate square feet for which Nationwide property management services provided by company	11.1

Summary of Significant Accoun_5

Summary of Significant Accounting Policies - Revenue Recognition (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Disaggregation of Revenue [Line Items]
Other operating	$ 2,010	$ 1,947	$ 5,973	$ 5,816
Parking Income
Disaggregation of Revenue [Line Items]
Other operating	1,752	1,669	5,197	4,907
Rental Lease Guaranty
Disaggregation of Revenue [Line Items]
Other operating	168	168	488	545
Management Fee Income
Disaggregation of Revenue [Line Items]
Other operating	68	70	205	237
Miscellaneous
Disaggregation of Revenue [Line Items]
Other operating	$ 22	$ 40	$ 83	$ 127

Summary of Significant Accoun_6

Summary of Significant Accounting Policies - Reclassifications (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Reclassifications [Line Items]
Property operating expense	$ 44,135	$ 40,628	$ 127,691	$ 116,663
Bad debts, net of recoveries	(62)	4	42	175
Gain on sales of properties	1,288	(7)	30,879	39,525
INCOME FROM CONTINUING OPERATIONS	$ 6,548	3,173	$ 53,456	60,243
Income (loss) from discontinued operations		0		0
Gain on sales of properties		0		0
INCOME (LOSS) FROM DISCONTINUED OPERATIONS		0		0
As Previously Reported
Reclassifications [Line Items]
Property operating expense		40,626		116,644
Bad debts, net of recoveries		14		185
Gain on sales of properties		(7)		39,519
INCOME FROM CONTINUING OPERATIONS		3,165		60,247
Income (loss) from discontinued operations		8		(9)
Gain on sales of properties		0		5
INCOME (LOSS) FROM DISCONTINUED OPERATIONS		$ 8		$ (4)

Summary of Significant Accoun_7

Summary of Significant Accounting Policies - Impact of Adoption of New Accounting Standard (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Rental income	$ 111,452	$ 105,078	$ 331,247	$ 311,171
Other operating	2,010	1,947	5,973	5,816
Revenues	113,462	107,025	337,220	316,987
Interest and other income, net	41	354	571	396
NET INCOME	$ 6,548	3,173	$ 53,456	60,243
As Reported
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Rental income		106,561		315,519
Other operating		392		1,249
Revenues		106,953		316,768
Interest and other income, net		426		616
NET INCOME		$ 3,173		$ 60,243

Real Estate Investments - Acqui

Real Estate Investments - Acquisitions (Details) $ in Millions	Aug. 24, 2018USD ($)ft²	Jun. 29, 2018USD ($)aft²	Jun. 27, 2018USD ($)	May 21, 2018USD ($)ft²	May 18, 2018USD ($)ft²property	May 03, 2018USD ($)ft²	Apr. 26, 2018USD ($)	Sep. 30, 2018USD ($)ft²
Business Acquisition [Line Items]
Gain on disposition of property			$ 5.4				$ 22.3
Real Estate Acquisition
Business Acquisition [Line Items]
Purchase price								$ 74.5
Mortgage Note Payable Assumed								(8)
Cash consideration								66.2
Real Estate								75.3
Other								$ (1)
Square footage | ft²								387,848
Fair value adjustments								$ 0.1
WASHINGTON | Real Estate Acquisition
Business Acquisition [Line Items]
Date Acquired		Jun. 29, 2018				May 4, 2018
Purchase price		$ 26.2				$ 7.8
Mortgage Note Payable Assumed		0				0
Cash consideration		26.2				7.8
Real Estate		26.7				7.8
Other		$ (0.5)				$ 0
Square footage | ft²		86,942				13,314
COLORADO | Real Estate Acquisition
Business Acquisition [Line Items]
Date Acquired	Aug. 24, 2018				May 18, 2018
Purchase price	$ 4.1				$ 25
Mortgage Note Payable Assumed	0				(8)
Cash consideration	4.2				16.6
Real Estate	4.2				25.1
Other	$ 0				$ (0.4)
Square footage | ft²	17,084				187,861
Number of properties acquired | property					2
OKLAHOMA | Real Estate Acquisition
Business Acquisition [Line Items]
Date Acquired				May 21, 2018
Purchase price				$ 11.4
Mortgage Note Payable Assumed				0
Cash consideration				11.4
Real Estate				11.5
Other				$ (0.1)
Square footage | ft²				82,647
Land Held for Development | Real Estate Acquisition
Business Acquisition [Line Items]
Area of land acquired | a		20.5
Real Estate Dispositions
Business Acquisition [Line Items]
Net Real Estate Investment								34.8
Gain on disposition of property								$ 29
Real Estate Dispositions | Garage
Business Acquisition [Line Items]
Net Real Estate Investment		$ 3.9
Gain on disposition of property		$ 1.9

Real Estate Investments - Dispo

Real Estate Investments - Dispositions (Details) $ in Millions	Aug. 30, 2018USD ($)ft²	Jun. 29, 2018USD ($)a	Jun. 27, 2018USD ($)ft²property	Apr. 26, 2018USD ($)ft²buildingproperty	Sep. 30, 2018USD ($)ft²
Real Estate Dispositions [Line Items]
Number of properties exercising purchase option | property			5	7
Number of single-tenant net leased buildings | building				5
Number of multi-tenant buildings | building				2
Gain/(Impairment)			$ 5.4	$ 22.3
Real Estate Dispositions
Real Estate Dispositions [Line Items]
Sales price					$ 65.5
Net Proceeds					64.3
Closing Adjustments					(1.2)
Net Real Estate Investment					34.8
Real Estate Other					0.5
Gain/(Impairment)					$ 29
Square footage | ft²					653,446
Real Estate Dispositions | VIRGINIA
Real Estate Dispositions [Line Items]
Disposal Date				Apr. 26, 2018
Sales price				$ 46.2
Net Proceeds				46.2
Closing Adjustments				0
Net Real Estate Investment				23.9
Real Estate Other				0
Gain/(Impairment)				$ 22.3
Square footage | ft²				460,881
Real Estate Dispositions | MICHIGAN
Real Estate Dispositions [Line Items]
Disposal Date			Jun. 27, 2018
Number of properties exercising purchase option | property			5
Sales price			$ 9.5
Net Proceeds			8.8
Closing Adjustments			(0.7)
Net Real Estate Investment			3.4
Real Estate Other			0
Gain/(Impairment)			$ 5.4
Square footage | ft²			121,672
Forfeited earnest money			$ 0.5
Real Estate Dispositions | MISSOURI
Real Estate Dispositions [Line Items]
Disposal Date	Aug. 30, 2018
Sales price	$ 9.8
Net Proceeds	9.3
Closing Adjustments	(0.5)
Net Real Estate Investment	7.5
Real Estate Other	0.5
Gain/(Impairment)	$ 1.3
Square footage | ft²	70,893
Garage | Real Estate Dispositions
Real Estate Dispositions [Line Items]
Net Real Estate Investment		$ 3.9
Gain/(Impairment)		$ 1.9
Real Estate Acquisition | Medical Office Building
Real Estate Dispositions [Line Items]
Area of land acquired | a		4.6
Real Estate Acquisition | Land Held for Development
Real Estate Dispositions [Line Items]
Appraised value of land		$ 5.8
Area of land acquired | a		20.5

Real Estate Investments - Asset

Real Estate Investments - Assets Held for Sale (Details) $ in Millions	Jun. 27, 2018USD ($)property	Apr. 26, 2018USD ($)buildingproperty	Mar. 31, 2018property	Sep. 30, 2018property	Dec. 31, 2017property
Business Combinations [Abstract]
Number of properties held for sale				1	8
Number of properties reclassified to held for sale			5
Gain on disposition of property | $	$ 5.4	$ 22.3
Number of properties exercising purchase option	5	7
Number of single-tenant net leased buildings | building		5
Number of multi-tenant buildings | building		2

Real Estate Investments - Disco

Real Estate Investments - Discontinued Operations and Assets Held for Sale - Balance Sheet (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Balance Sheet data (as of the period ended):
Land	$ 217,322	$ 201,283
Buildings, improvements and lease intangibles	3,669,852	3,601,460
Personal property	10,454	10,314
Real estate properties, Total	3,949,233	3,838,638
Accumulated depreciation	(989,585)	(897,430)
Total real estate properties, net	2,959,648	2,941,208
Other assets, net	222,582	213,015
Assets held for sale, net	8,826	33,147
Liabilities of properties held for sale	141	93
Discontinued Operations
Balance Sheet data (as of the period ended):
Land	1,125	4,636
Buildings, improvements and lease intangibles	18,231	63,654
Personal property	0	82
Real estate properties, Total	19,356	68,372
Accumulated depreciation	(10,657)	(35,790)
Total real estate properties, net	8,699	32,582
Other assets, net	127	565
Assets held for sale, net	8,826	33,147
Accounts payable and accrued liabilities	119	38
Other liabilities	22	55
Liabilities of properties held for sale	$ 141	$ 93

Notes and Bonds Payable (Detail

Notes and Bonds Payable (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Notes and bonds payable	$ 1,344,759	$ 1,283,880
Line of Credit | Unsecured Credit Facility
Debt Instrument [Line Items]
Notes and bonds payable	$ 245,000	189,000
Effective interest rate (percent)	3.26%
Medium-term Notes | Unsecured Term Loan Facility, net of issuance costs (1)
Debt Instrument [Line Items]
Notes and bonds payable	$ 149,132	148,994
Effective interest rate (percent)	3.41%
Notional amount	$ 50,000
Derivative, fixed interest rate (percent)	2.46%
Basis spread on variable rate (percent)	1.10%
Senior Notes | Senior Notes due 2023, net of discount and issuance costs
Debt Instrument [Line Items]
Notes and bonds payable	$ 248,013	247,703
Effective interest rate (percent)	3.95%
Senior Notes | Senior Notes due 2025, net of discount and issuance costs (2)
Debt Instrument [Line Items]
Notes and bonds payable	$ 248,219	248,044
Effective interest rate (percent)	4.08%
Senior Notes | Senior Notes due 2028, net of discount and issuance costs
Debt Instrument [Line Items]
Notes and bonds payable	$ 295,087	294,757
Effective interest rate (percent)	3.84%
Mortgages | Mortgage notes payable, net of discounts and issuance costs and including premiums
Debt Instrument [Line Items]
Notes and bonds payable	$ 159,308	$ 155,382
Effective interest rate (percent)	4.83%
Interest Rate Swap | Medium-term Notes | Unsecured Term Loan Facility, net of issuance costs (1)
Debt Instrument [Line Items]
Notional amount	$ 25,000
Derivative, fixed interest rate (percent)	2.18%
Interest Rate Swap | Senior Notes | Senior Notes due 2025, net of discount and issuance costs (2)
Debt Instrument [Line Items]
Loss on forward starting interest rate swap agreement recognized in OCI	$ 1,700

Derivative Financial Instrume_3

Derivative Financial Instruments - Derivative Instruments Designated as Cash Flow Hedges (Details) $ in Millions	Sep. 30, 2018USD ($)swap_agreement
Derivative [Line Items]
Number of instruments	4
Cash Flow Hedging | Designated as Hedging Instrument | Interest Rate Swap
Derivative [Line Items]
Number of instruments	4
Notional amount | $	$ 75

Derivative Financial Instrume_4

Derivative Financial Instruments - Fair Value of Derivative Instruments on the Balance Sheet (Details) - Designated as Hedging Instrument - Interest Rate Swap $ in Thousands	Sep. 30, 2018USD ($)
Derivative [Line Items]
Asset derivatives	$ 1,579
Other assets
Derivative [Line Items]
Asset derivatives	$ 1,579

Derivative Financial Instrume_5

Derivative Financial Instruments - Effect of Cash Flow Hedging on AOCI (Details) - Cash Flow Hedging - Designated as Hedging Instrument - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Derivative [Line Items]
Amount of Gain Recognized in OCI on Derivative	$ 1,403
Interest Rate Products
Derivative [Line Items]
Amount of Gain Recognized in OCI on Derivative	1,403
Settled Interest Rate Swaps
Derivative [Line Items]
Amount of Gain Recognized in OCI on Derivative	0
Interest Expense
Derivative [Line Items]
Amount of Loss Reclassified from OCI into Income	369	$ 127
Interest Expense | Interest Rate Products
Derivative [Line Items]
Amount of Loss Reclassified from OCI into Income	243	0
Interest Expense | Settled Interest Rate Swaps
Derivative [Line Items]
Amount of Loss Reclassified from OCI into Income	$ 126	$ 127

Derivative Financial Instrume_6

Derivative Financial Instruments - Additional Information (Details) $ in Millions	Sep. 30, 2018USD ($)
Active Interest Rate Swap
Derivative Instruments, Gain (Loss) [Line Items]
Interest rate cash flow hedge gain (loss) to be reclassified to interest expense during the next 12 months	$ 0.2
Settled Interest Rate Swap
Derivative Instruments, Gain (Loss) [Line Items]
Interest rate cash flow hedge gain (loss) to be reclassified to interest expense during the next 12 months	$ (0.2)

Commitments and Contingencies -

Commitments and Contingencies - Construction Activity (Details) $ in Millions	Sep. 30, 2018USD ($)ft²
Other Commitments [Line Items]
Approximate Square Feet	14,800,000
Medical Office Building Expansion | NORTH CAROLINA
Other Commitments [Line Items]
Approximate Square Feet	38,000
Medical Office Building | NORTH CAROLINA
Other Commitments [Line Items]
Total amount funded | $	$ 9.2
Medical Office Building | COLORADO
Other Commitments [Line Items]
Approximate Square Feet	151,000
Total amount funded | $	$ 18

Stockholders' Equity - Reconcil

Stockholders' Equity - Reconciliation of beginning and ending common stock outstanding (Details) - shares	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Reconciliation of the beginning and ending common stock outstanding
Balance, beginning of period	125,132,000
Balance, end of period	125,237,000
Common Stock
Reconciliation of the beginning and ending common stock outstanding
Balance, beginning of period	125,131,593	116,416,900
Issuance of common stock	20,395	8,395,607
Nonvested share-based awards, net of withheld shares	85,196	319,086
Balance, end of period	125,237,184

Stockholders' Equity (Stock Tra

Stockholders' Equity (Stock Transactions - Narrative) (Details) - $ / shares	Oct. 30, 2018	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Oct. 26, 2018
Class of Stock [Line Items]
Dividends declared per common share, during the period (in dollars per share)		$ 0.30	$ 0.30	$ 0.90	$ 0.90
At The Market Equity Offering Program
Class of Stock [Line Items]
Issuance of common stock (shares)				0
Subsequent Event
Class of Stock [Line Items]
Dividends declared per common share, during the period (in dollars per share)	$ 0.30
Subsequent Event | At The Market Equity Offering Program
Class of Stock [Line Items]
Number of authorized shares remaining under offering program (shares)						5,868,697

Stockholders' Equity - Changes

Stockholders' Equity - Changes in accumulated other comprehensive income (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018USD ($)swap_agreement	Sep. 30, 2017USD ($)	Sep. 30, 2018USD ($)swap_agreement	Sep. 30, 2017USD ($)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Number of instruments | swap_agreement	4		4
Period for reclassification out of AOCI			10 years
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance			$ 1,789,883
Total other comprehensive income	$ 469	$ 43	1,772	$ 127
Ending balance	1,740,252		1,740,252
Forward-starting Interest Rate Swaps
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance			(1,299)	(1,401)
Gains arising during the period related to active interest rate swaps			1,403	0
Amounts reclassified from accumulated other comprehensive (income) loss			369	127
Total other comprehensive income			1,772	127
Ending balance	$ 473	$ (1,274)	$ 473	$ (1,274)

Stockholders' Equity - Reclassi

Stockholders' Equity - Reclassifications out of AOCI (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest Expense	$ 13,464	$ 14,107	$ 39,202	$ 42,694
NET INCOME	$ 6,548	$ 3,173	53,456	$ 60,243
Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
NET INCOME			369
Amounts reclassified from accumulated other comprehensive income (loss) related to settled interest rate swaps | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest Expense			126
Amounts reclassified from accumulated other comprehensive income (loss) related to current interest rate swaps | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest Expense			$ 243

Stockholders' Equity - Computat

Stockholders' Equity - Computation of basic and diluted earnings (loss) per common share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Weighted average Common Shares outstanding
Weighted average Common Shares outstanding	125,233,462	120,895,835	125,206,342	117,981,159
Nonvested shares	(1,933,653)	(1,797,686)	(1,925,589)	(1,800,180)
Weighted average Common Shares—Basic	123,299,809	119,098,149	123,280,753	116,180,979
Dilutive effect of employee stock purchase plan	52,147	83,242	54,763	96,260
Weighted average Common Shares outstanding—Diluted	123,351,956	119,181,391	123,335,516	116,277,239
Net Income	$ 6,548	$ 3,173	$ 53,456	$ 60,243
Dividends paid on nonvested share-based awards	(580)	(538)	(1,740)	(1,609)
Net income applicable to common stockholders	$ 5,968	$ 2,635	$ 51,716	$ 58,634
Basic earnings per common share (in dollars per share)	$ 0.05	$ 0.02	$ 0.42	$ 0.50
Diluted earnings per common share (in dollars per share)	$ 0.05	$ 0.02	$ 0.42	$ 0.50

Stockholders' Equity - Summary

Stockholders' Equity - Summary of activity under stock-based incentive plans (Details) - Stock Incentive Plan - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Summary of the activity under the incentive plans
Share-based awards, beginning of period	1,938,100	1,797,686	1,907,645	1,786,497
Granted (shares)	0	0	107,751	103,615
Vested (shares)	(5,051)	0	(82,347)	(92,426)
Share-based awards, end of period	1,933,049	1,797,686	1,933,049	1,797,686
Restricted Stock
Summary of the activity under the incentive plans
Shares withheld to pay estimated withholding taxes			22,555	16,581

Stockholders' Equity - Summar_2

Stockholders' Equity - Summary of activity under Employee Stock Purchase Plan (Details) - Employee Stock Purchase Plan - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Summary of the Employee Stock Purchase Plan activity
Outstanding and exercisable, beginning of period (shares)	350,535	344,572	318,100	316,321
Granted (shares)	0	0	203,836	206,824
Exercised (shares)	(2,531)	(5,452)	(13,236)	(24,482)
Forfeited (shares)	(9,583)	(9,291)	(34,489)	(36,524)
Expired (shares)	0	0	(135,790)	(132,310)
Outstanding and exercisable, end of period (shares)	338,421	329,829	338,421	329,829

Fair Value of Financial Instr_3

Fair Value of Financial Instruments (Details) - USD ($) $ in Millions	Sep. 30, 2018	Dec. 31, 2017
Carrying Value
Derivative [Line Items]
Notes and bonds payable	$ 1,344.8	$ 1,283.9
Fair Value
Derivative [Line Items]
Notes and bonds payable	$ 1,300.2	$ 1,269.7