Highwoods Properties (HIW) 10-Q 24 Apr 18 2018 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information Document - shares	3 Months Ended
	Mar. 31, 2018	Apr. 17, 2018
Entity Information [Line Items]
Entity Registrant Name	HIGHWOODS PROPERTIES INC.
Entity Central Index Key	921,082
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Mar. 31, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Common Stock, Shares Outstanding		103,421,754
Highwoods Realty Limited Partnership [Member]
Entity Information [Line Items]
Entity Registrant Name	HIGHWOODS REALTY LIMITED PARTNERSHIP
Entity Central Index Key	941,713
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Document Type	10-Q
Document Period End Date	Mar. 31, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q1
Amendment Flag	false

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Real estate assets, at cost:
Land	$ 485,956	$ 485,956
Buildings and tenant improvements	4,617,003	4,590,490
Development in-process	131,671	88,452
Land held for development	125,841	74,765
Total real estate assets	5,360,471	5,239,663
Less-accumulated depreciation	(1,239,383)	(1,202,424)
Net real estate assets	4,121,088	4,037,239
Real estate and other assets, net, held for sale	14,017	14,118
Cash and cash equivalents	31,034	3,272
Restricted cash	36,848	85,061
Accounts receivable, net of allowance of $784 and $753, respectively	22,943	24,397
Mortgages and notes receivable, net of allowance of $69 and $72, respectively	6,158	6,425
Accrued straight-line rents receivable, net of allowance of $909 and $819, respectively	206,698	200,131
Investments in and advances to unconsolidated affiliates	23,095	23,897
Deferred leasing costs, net of accumulated amortization of $146,909 and $143,512, respectively	196,302	200,679
Prepaid expenses and other assets, net of accumulated depreciation of $19,860 and $19,092, respectively	37,272	28,572
Total Assets	4,695,455	4,623,791
Liabilities, Noncontrolling Interests in the Operating Partnership and Equity/Liabilities, Redeemable Operating Partnership Units and Capital:
Mortgages and notes payable, net	2,112,584	2,014,333
Accounts payable, accrued expenses and other liabilities	206,258	228,215
Total Liabilities	2,318,842	2,242,548
Commitments and contingencies
Noncontrolling interests in the Operating Partnership	123,113	144,009
Equity/Capital:
Preferred Stock, $.01 par value, 50,000,000 authorized shares; 8.625% Series A Cumulative Redeemable Preferred Shares (liquidation preference $1,000 per share), 28,887 and 28,892 shares issued and outstanding, respectively	28,887	28,892
Common Stock, $.01 par value, 200,000,000 authorized shares; 103,421,754 and 103,266,875 shares issued and outstanding, respectively	1,034	1,033
Additional paid-in capital	2,953,148	2,929,399
Distributions in excess of net income available for common stockholders	(762,642)	(747,344)
Accumulated other comprehensive income	15,609	7,838
Total Stockholders’ Equity	2,236,036	2,219,818
Noncontrolling interests in consolidated affiliates	17,464	17,416
Total Equity/Capital	2,253,500	2,237,234
Total Liabilities, Noncontrolling Interests in the Operating Partnership and Equity/Total Liabilities, Redeemable Operating Partnership Units and Capital	4,695,455	4,623,791
Highwoods Realty Limited Partnership [Member]
Real estate assets, at cost:
Land	485,956	485,956
Buildings and tenant improvements	4,617,003	4,590,490
Development in-process	131,671	88,452
Land held for development	125,841	74,765
Total real estate assets	5,360,471	5,239,663
Less-accumulated depreciation	(1,239,383)	(1,202,424)
Net real estate assets	4,121,088	4,037,239
Real estate and other assets, net, held for sale	14,017	14,118
Cash and cash equivalents	31,034	3,272
Restricted cash	36,848	85,061
Accounts receivable, net of allowance of $784 and $753, respectively	22,943	24,397
Mortgages and notes receivable, net of allowance of $69 and $72, respectively	6,158	6,425
Accrued straight-line rents receivable, net of allowance of $909 and $819, respectively	206,698	200,131
Investments in and advances to unconsolidated affiliates	23,095	23,897
Deferred leasing costs, net of accumulated amortization of $146,909 and $143,512, respectively	196,302	200,679
Prepaid expenses and other assets, net of accumulated depreciation of $19,860 and $19,092, respectively	37,272	28,572
Total Assets	4,695,455	4,623,791
Liabilities, Noncontrolling Interests in the Operating Partnership and Equity/Liabilities, Redeemable Operating Partnership Units and Capital:
Mortgages and notes payable, net	2,112,584	2,014,333
Accounts payable, accrued expenses and other liabilities	206,258	228,215
Total Liabilities	2,318,842	2,242,548
Commitments and contingencies
Redeemable Operating Partnership Units:
Common Units, 2,809,508 and 2,828,704 outstanding, respectively	123,113	144,009
Series A Preferred Units (liquidation preference $1,000 per unit), 28,887 and 28,892 units issued and outstanding, respectively	28,887	28,892
Total Redeemable Operating Partnership Units	152,000	172,901
Equity/Capital:
General partner Common Units, 1,058,225 and 1,056,868 outstanding, respectively	21,915	21,830
Limited partner Common Units, 101,954,720 and 101,801,198 outstanding, respectively	2,169,625	2,161,258
Accumulated other comprehensive income	15,609	7,838
Noncontrolling interests in consolidated affiliates	17,464	17,416
Total Equity/Capital	2,224,613	2,208,342
Total Liabilities, Noncontrolling Interests in the Operating Partnership and Equity/Total Liabilities, Redeemable Operating Partnership Units and Capital	$ 4,695,455	$ 4,623,791

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Assets:
Accounts receivable allowance	$ 784	$ 753
Mortgages and notes receivable allowance	69	72
Accrued straight-line rents receivable allowance	909	819
Deferred leasing costs, accumulated amortization	146,909	143,512
Prepaid expenses and other assets, accumulated depreciation	$ 19,860	$ 19,092
Equity/Capital:
Series A Preferred Stock, dividend rate percentage (in hundredths)	8.625%	8.625%
Series A Preferred Stock, par value (in dollars per share)	$ 0.01	$ 0.01
Series A Preferred Stock, authorized shares (in shares)	50,000,000	50,000,000
Series A Preferred Stock, liquidation preference (in dollars per share)	$ 1,000	$ 1,000
Series A Preferred Stock, shares issued (in shares)	28,887	28,892
Series A Preferred Stock, shares outstanding (in shares)	28,887	28,892
Common Stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common Stock, authorized shares (in shares)	200,000,000	200,000,000
Common Stock, shares issued (in shares)	103,421,754	103,266,875
Common Stock, shares outstanding (in shares)	103,421,754	103,266,875
Highwoods Realty Limited Partnership [Member]
Assets:
Accounts receivable allowance	$ 784	$ 753
Mortgages and notes receivable allowance	69	72
Accrued straight-line rents receivable allowance	909	819
Deferred leasing costs, accumulated amortization	146,909	143,512
Prepaid expenses and other assets, accumulated depreciation	$ 19,860	$ 19,092
Redeemable Operating Partnership Units: [Abstract]
Redeemable Common Units outstanding (in shares)	2,809,508	2,828,704
Series A Preferred Units, liquidation preference (in dollars per share)	$ 1,000	$ 1,000
Series A Preferred Units, issued (in shares)	28,887	28,892
Series A Preferred Units, outstanding (in shares)	28,887	28,892
Common Units: [Abstract]
General partners' capital account, units outstanding (in shares)	1,058,225	1,056,868
Limited partners' capital account, units outstanding (in shares)	101,954,720	101,801,198

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Rental and other revenues	$ 180,438	$ 169,408
Operating expenses:
Rental property and other expenses	59,432	57,396
Depreciation and amortization	57,568	56,145
General and administrative	11,778	11,490
Total operating expenses	128,778	125,031
Interest expense:
Contractual	17,705	17,023
Amortization of debt issuance costs	686	840
Total interest expense	18,391	17,863
Other income:
Interest and other income	455	684
Total other income	455	684
Income before disposition of investment properties and activity in unconsolidated affiliates	33,724	27,198
Gains on disposition of property	0	5,332
Equity in earnings of unconsolidated affiliates	522	955
Net income	34,246	33,485
Net (income) attributable to noncontrolling interests in the Operating Partnership	(888)	(888)
Net (income) attributable to noncontrolling interests in consolidated affiliates	(286)	(300)
Dividends on Preferred Stock	(623)	(623)
Net income available for common stockholders	$ 32,449	$ 31,674
Earnings per Common Share – basic:
Net income available for common stockholders (in dollars per share)	$ 0.31	$ 0.31
Weighted average Common Shares outstanding - basic (in shares)	103,324	101,738
Earnings per Common Share - diluted:
Net income available for common stockholders (in dollars per share)	$ 0.31	$ 0.31
Weighted average Common Shares outstanding - diluted (in shares)	106,165	104,661
Dividends declared per Common Share (in dollars per share)	$ 0.4625	$ 0.440
Highwoods Realty Limited Partnership [Member]
Rental and other revenues	$ 180,438	$ 169,408
Operating expenses:
Rental property and other expenses	59,432	57,396
Depreciation and amortization	57,568	56,145
General and administrative	11,778	11,490
Total operating expenses	128,778	125,031
Interest expense:
Contractual	17,705	17,023
Amortization of debt issuance costs	686	840
Total interest expense	18,391	17,863
Other income:
Interest and other income	455	684
Total other income	455	684
Income before disposition of investment properties and activity in unconsolidated affiliates	33,724	27,198
Gains on disposition of property	0	5,332
Equity in earnings of unconsolidated affiliates	522	955
Net income	34,246	33,485
Net (income) attributable to noncontrolling interests in consolidated affiliates	(286)	(300)
Distributions on Preferred Units	(623)	(623)
Net income available for common unitholders	$ 33,337	$ 32,562
Earnings per Common Unit - basic:
Net income available for common unitholders (in dollars per share)	$ 0.32	$ 0.31
Weighted average Common Units outstanding - basic (in shares)	105,730	104,167
Earnings per Common Unit - diluted:
Net income available for common unitholders (in dollars per share)	$ 0.32	$ 0.31
Weighted average Common Units outstanding - diluted (in shares)	105,756	104,252
Distributions declared per Common Unit (in dollars per unit)	$ 0.4625	$ 0.44

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Comprehensive income:
Net income	$ 34,246	$ 33,485
Other comprehensive income:
Unrealized gains on cash flow hedges	7,877	452
Amortization of cash flow hedges	(106)	484
Total other comprehensive income	7,771	936
Total comprehensive income	42,017	34,421
Less-comprehensive (income) attributable to noncontrolling interests	(1,174)	(1,188)
Comprehensive income attributable to common stockholders/Comprehensive income attributable to common unitholders	40,843	33,233
Highwoods Realty Limited Partnership [Member]
Comprehensive income:
Net income	34,246	33,485
Other comprehensive income:
Unrealized gains on cash flow hedges	7,877	452
Amortization of cash flow hedges	(106)	484
Total other comprehensive income	7,771	936
Total comprehensive income	42,017	34,421
Less-comprehensive (income) attributable to noncontrolling interests	(286)	(300)
Comprehensive income attributable to common stockholders/Comprehensive income attributable to common unitholders	$ 41,731	$ 34,121

Consolidated Statements of Equi

Consolidated Statements of Equity/Capital - USD ($) $ in Thousands	Total	Highwoods Realty Limited Partnership [Member]	Common Stock [Member]	Series A Cumulative Redeemable Preferred Shares [Member]	General Partners' Common Units [Member]Highwoods Realty Limited Partnership [Member]	Limited Partners' Common Units [Member]Highwoods Realty Limited Partnership [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Accumulated Other Comprehensive Income (Loss) [Member]Highwoods Realty Limited Partnership [Member]	Noncontrolling Interests in Consolidated Affiliates [Member]	Noncontrolling Interests in Consolidated Affiliates [Member]Highwoods Realty Limited Partnership [Member]	Distributions in Excess of Net Income Available for Common Stockholders [Member]
Balance (in shares) at Dec. 31, 2016			101,665,554
Balance at Dec. 31, 2016	$ 2,154,316	$ 2,125,396	$ 1,017	$ 28,920	$ 21,023	$ 2,081,463	$ 2,850,881	$ 4,949	$ 4,949	$ 17,961	$ 17,961	$ (749,412)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuances of Common Units, net of issuance costs and tax withholdings		9,134			91	9,043
Distributions on Common Units		(45,986)			(460)	(45,526)
Distributions on Preferred Units		(623)			(6)	(617)
Issuances of Common Stock, net of issuance costs and tax withholdings - Shares			239,817
Issuances of Common Stock, net of issuance costs and tax withholdings	9,134		$ 2				9,132
Conversions of Common Units to Common Stock - Shares			2,000
Conversions of Common Units to Common Stock	102						102
Dividends on Common Stock	(44,917)											(44,917)
Dividends on Preferred Stock	(623)											(623)
Adjustment of noncontrolling interests in the Operating Partnership to fair value	4,972						4,972
Distributions to noncontrolling interests in consolidated affiliates	(466)	(466)								(466)	(466)
Issuances of restricted stock - shares			110,748
Issuances of restricted stock	0
Redemptions/repurchases of Preferred Stock	(15)			(15)
Share-based compensation expense, net of forfeitures	3,783	3,783	$ 1		38	3,745	3,782
Adjustment of Redeemable Common Units to fair value and contributions/distributions from/to the General Partner		5,255			52	5,203
Net (income) attributable to noncontrolling interests in the Operating Partnership	(888)											(888)
Net (income) attributable to noncontrolling interests in consolidated affiliates	0	0			(3)	(297)				300	300	(300)
Comprehensive income:
Net income	33,485	33,485			335	33,150						33,485
Other comprehensive income	936	936						936	936
Total comprehensive income	34,421	34,421
Balance (in shares) at Mar. 31, 2017			102,018,119
Balance at Mar. 31, 2017	$ 2,159,819	2,130,914	$ 1,020	28,905	21,070	2,086,164	2,868,869	5,885	5,885	17,795	17,795	(762,655)
Balance (in shares) at Dec. 31, 2017	103,266,875		103,266,875
Balance at Dec. 31, 2017	$ 2,237,234	2,208,342	$ 1,033	28,892	21,830	2,161,258	2,929,399	7,838	7,838	17,416	17,416	(747,344)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuances of Common Units, net of issuance costs and tax withholdings		(1,029)			(10)	(1,019)
Distributions on Common Units		(48,858)			(488)	(48,370)
Distributions on Preferred Units		(623)			(6)	(617)
Issuances of Common Stock, net of issuance costs and tax withholdings - Shares			(36,757)
Issuances of Common Stock, net of issuance costs and tax withholdings	(1,029)		$ 0				(1,029)
Conversions of Common Units to Common Stock - Shares			19,196
Conversions of Common Units to Common Stock	902						902
Dividends on Common Stock	(47,747)											(47,747)
Dividends on Preferred Stock	(623)											(623)
Adjustment of noncontrolling interests in the Operating Partnership to fair value	19,582						19,582
Distributions to noncontrolling interests in consolidated affiliates	(238)	(238)								(238)	(238)
Issuances of restricted stock - shares			172,440
Issuances of restricted stock	0
Redemptions/repurchases of Preferred Stock	(5)			(5)
Share-based compensation expense, net of forfeitures	4,295	4,295	$ 1		43	4,252	4,294
Adjustment of Redeemable Common Units to fair value and contributions/distributions from/to the General Partner		20,707			207	20,500
Net (income) attributable to noncontrolling interests in the Operating Partnership	(888)											(888)
Net (income) attributable to noncontrolling interests in consolidated affiliates	0	0			(3)	(283)				286	286	(286)
Comprehensive income:
Net income	34,246	34,246			342	33,904						34,246
Other comprehensive income	7,771	7,771						7,771	7,771
Total comprehensive income	$ 42,017	42,017
Balance (in shares) at Mar. 31, 2018	103,421,754		103,421,754
Balance at Mar. 31, 2018	$ 2,253,500	$ 2,224,613	$ 1,034	$ 28,887	$ 21,915	$ 2,169,625	$ 2,953,148	$ 15,609	$ 15,609	$ 17,464	$ 17,464	$ (762,642)

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Operating activities:
Net income	$ 34,246	$ 33,485
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	57,568	56,145
Amortization of lease incentives and acquisition-related intangible assets and liabilities	(509)	(10)
Share-based compensation expense	4,295	3,783
Allowance for losses on accounts and accrued straight-line rents receivable	227	61
Accrued interest on mortgages and notes receivable	(112)	(132)
Amortization of debt issuance costs	686	840
Amortization of cash flow hedges	(106)	484
Amortization of mortgages and notes payable fair value adjustments	317	(30)
Net gains on disposition of property	0	(5,332)
Equity in earnings of unconsolidated affiliates	(522)	(955)
Distributions of earnings from unconsolidated affiliates	881	2,431
Settlement of cash flow hedges	7,216	7,322
Changes in operating assets and liabilities:
Accounts receivable	3,288	3,922
Prepaid expenses and other assets	(7,692)	(5,959)
Accrued straight-line rents receivable	(6,619)	(6,185)
Accounts payable, accrued expenses and other liabilities	(14,636)	(20,951)
Net cash provided by operating activities	78,528	68,919
Investing activities:
Investments in acquired real estate and related intangible assets, net of cash acquired	(50,649)	0
Investments in development in-process	(42,438)	(59,408)
Investments in tenant improvements and deferred leasing costs	(33,071)	(24,649)
Investments in building improvements	(19,293)	(17,194)
Net proceeds from disposition of real estate assets	0	11,532
Distributions of capital from unconsolidated affiliates	105	6,512
Repayments of mortgages and notes receivable	379	1,178
Changes in other investing activities	(586)	(1,596)
Net cash used in investing activities	(145,553)	(83,625)
Financing activities:
Dividends on Common Stock	(47,747)	(44,917)
Special dividend on Common Stock	0	(81,205)
Redemptions/repurchases of Preferred Stock	(5)	(15)
Dividends on Preferred Stock	(623)	(623)
Distributions to noncontrolling interests in the Operating Partnership	(1,300)	(1,249)
Special distribution to noncontrolling interests in the Operating Partnership	0	(2,271)
Distributions to noncontrolling interests in consolidated affiliates	(238)	(466)
Proceeds from the issuance of Common Stock	561	13,191
Costs paid for the issuance of Common Stock	(46)	(250)
Repurchase of shares related to tax withholdings	(1,544)	(3,807)
Borrowings on revolving credit facility	32,000	200,300
Repayments of revolving credit facility	(277,000)	(69,300)
Borrowings on mortgages and notes payable	345,863	346,001
Repayments of mortgages and notes payable	(444)	(380,261)
Changes in debt issuance costs and other financing activities	(2,903)	(4,894)
Net cash provided by/(used in) financing activities	46,574	(29,766)
Net decrease in cash and cash equivalents and restricted cash	(20,451)	(44,472)
Cash and cash equivalents and restricted cash at beginning of the period	88,333	78,631
Cash and cash equivalents and restricted cash at end of the period	67,882	34,159
Reconciliation of cash and cash equivalents and restricted cash:
Cash and cash equivalents at end of the period	31,034	4,918
Restricted cash at end of the period	36,848	29,241
Supplemental disclosure of cash flow information:
Cash paid for interest, net of amounts capitalized	15,986	18,909
Supplemental disclosure of non-cash investing and financing activities:
Unrealized gains on cash flow hedges	7,877	452
Conversions of Common Units to Common Stock	902	102
Changes in accrued capital expenditures	(7,333)	(6,741)
Write-off of fully depreciated real estate assets	10,511	10,649
Write-off of fully amortized leasing costs	7,112	10,091
Write-off of fully amortized debt issuance costs	0	3,161
Adjustment of noncontrolling interests in the Operating Partnership to fair value	(19,582)	(4,972)
Highwoods Realty Limited Partnership [Member]
Operating activities:
Net income	34,246	33,485
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	57,568	56,145
Amortization of lease incentives and acquisition-related intangible assets and liabilities	(509)	(10)
Share-based compensation expense	4,295	3,783
Allowance for losses on accounts and accrued straight-line rents receivable	227	61
Accrued interest on mortgages and notes receivable	(112)	(132)
Amortization of debt issuance costs	686	840
Amortization of cash flow hedges	(106)	484
Amortization of mortgages and notes payable fair value adjustments	317	(30)
Net gains on disposition of property	0	(5,332)
Equity in earnings of unconsolidated affiliates	(522)	(955)
Distributions of earnings from unconsolidated affiliates	881	2,431
Settlement of cash flow hedges	7,216	7,322
Changes in operating assets and liabilities:
Accounts receivable	3,288	3,922
Prepaid expenses and other assets	(7,692)	(5,959)
Accrued straight-line rents receivable	(6,619)	(6,185)
Accounts payable, accrued expenses and other liabilities	(14,636)	(20,951)
Net cash provided by operating activities	78,528	68,919
Investing activities:
Investments in acquired real estate and related intangible assets, net of cash acquired	(50,649)	0
Investments in development in-process	(42,438)	(59,408)
Investments in tenant improvements and deferred leasing costs	(33,071)	(24,649)
Investments in building improvements	(19,293)	(17,194)
Net proceeds from disposition of real estate assets	0	11,532
Distributions of capital from unconsolidated affiliates	105	6,512
Repayments of mortgages and notes receivable	379	1,178
Changes in other investing activities	(586)	(1,596)
Net cash used in investing activities	(145,553)	(83,625)
Financing activities:
Distributions on Common Units	(48,858)	(45,986)
Special distribution on Common Units	0	(83,149)
Redemptions/repurchases of Preferred Units	(5)	(15)
Distributions on Preferred Units	(623)	(623)
Distributions to noncontrolling interests in consolidated affiliates	(238)	(466)
Proceeds from the issuance of Common Units	561	13,191
Costs paid for the issuance of Common Units	(46)	(250)
Repurchase of units related to tax withholdings	(1,544)	(3,807)
Borrowings on revolving credit facility	32,000	200,300
Repayments of revolving credit facility	(277,000)	(69,300)
Borrowings on mortgages and notes payable	345,863	346,001
Repayments of mortgages and notes payable	(444)	(380,261)
Changes in debt issuance costs and other financing activities	(3,092)	(5,401)
Net cash provided by/(used in) financing activities	46,574	(29,766)
Net decrease in cash and cash equivalents and restricted cash	(20,451)	(44,472)
Cash and cash equivalents and restricted cash at beginning of the period	88,333	78,631
Cash and cash equivalents and restricted cash at end of the period	67,882	34,159
Reconciliation of cash and cash equivalents and restricted cash:
Cash and cash equivalents at end of the period	31,034	4,918
Restricted cash at end of the period	36,848	29,241
Supplemental disclosure of cash flow information:
Cash paid for interest, net of amounts capitalized	15,986	18,909
Supplemental disclosure of non-cash investing and financing activities:
Unrealized gains on cash flow hedges	7,877	452
Changes in accrued capital expenditures	(7,333)	(6,741)
Write-off of fully depreciated real estate assets	10,511	10,649
Write-off of fully amortized leasing costs	7,112	10,091
Write-off of fully amortized debt issuance costs	0	3,161
Adjustment of Redeemable Common Units to fair value	$ (20,896)	$ (5,435)

Description of Business and Sig

Description of Business and Significant Accounting Policies	3 Months Ended
	Mar. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of Business and Significant Accounting Policies	Description of Business and Significant Accounting Policies Description of Business Highwoods Properties, Inc. (the “Company”) is a fully integrated real estate investment trust (“REIT”) that provides leasing, management, development, construction and other customer-related services for its properties and for third parties. The Company conducts its activities through Highwoods Realty Limited Partnership (the “Operating Partnership”). At March 31, 2018 , we owned or had an interest in 30.7 million rentable square feet of in-service properties, 1.5 million rentable square feet of properties under development and approximately 400 acres of development land. The Company is the sole general partner of the Operating Partnership. At March 31, 2018 , the Company owned all of the Preferred Units and 103.0 million , or 97.4% , of the Common Units in the Operating Partnership. Limited partners owned the remaining 2.8 million Common Units. During the three months ended March 31, 2018 , the Company redeemed 19,196 Common Units for a like number of shares of Common Stock. Basis of Presentation Our Consolidated Financial Statements are prepared in conformity with accounting principles generally accepted in the United States of America (“GAAP”). The Company's Consolidated Financial Statements include the Operating Partnership, wholly owned subsidiaries and those entities in which the Company has the controlling interest. The Operating Partnership's Consolidated Financial Statements include wholly owned subsidiaries and those entities in which the Operating Partnership has the controlling interest. All intercompany transactions and accounts have been eliminated. The unaudited interim consolidated financial statements and accompanying unaudited consolidated financial information, in the opinion of management, contain all adjustments (including normal recurring accruals) necessary for a fair presentation of our financial position, results of operations and cash flows. We have condensed or omitted certain notes and other information from the interim Consolidated Financial Statements presented in this Quarterly Report as permitted by SEC rules and regulations. These Consolidated Financial Statements should be read in conjunction with our 2017 Annual Report on Form 10-K. Use of Estimates The preparation of consolidated financial statements in accordance with GAAP requires us to make estimates and assumptions that affect the amounts reported in our Consolidated Financial Statements and accompanying notes. Actual results could differ from those estimates. Insurance Beginning in 2018, we are primarily self-insured for health care claims for eligible participating employees. We have stop-loss coverage to limit our exposure to significant claims on a per claim and annual aggregate basis. We determine our liabilities for claims, including incurred but not reported losses, based on all relevant information, including actuarial estimates of claim liabilities. At March 31, 2018 , a reserve of $0.4 million was recorded to cover estimated reported and unreported claims. 1. Description of Business and Significant Accounting Policies – Continued Recently Issued Accounting Standards The Financial Accounting Standards Board ("FASB") issued an accounting standards update ("ASU") which superseded the revenue recognition requirements under previous guidance. We adopted the ASU on January 1, 2018. Several updates have been issued subsequently which were intended to promote a more consistent interpretation and application of the principles outlined in the ASU. The ASU requires the use of a new five-step model to recognize revenue from contracts with customers. The five-step model requires that we identify the contract with the customer, identify the performance obligations in the contract, determine the transaction price, allocate the transaction price to the performance obligations in the contract and recognize revenue when we satisfy the performance obligations. We are also required to disclose information regarding the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers. In analyzing our contracts with customers, we determined that the most material potential impact from the adoption of this ASU would be in how revenue is recognized for sales of real estate with continuing involvement. Prior to the adoption of this ASU, profit for such sales transactions was recognized and then reduced by the maximum exposure to loss related to the nature of the continuing involvement at the time of sale. Upon adoption of this ASU, any continuing involvement must be analyzed as a separate performance obligation in the contract and a portion of the sales price allocated to each performance obligation. When the continuing involvement performance obligation is satisfied, the sales price allocated to it will be recognized. We had no sales of real estate with continuing involvement during the first quarter of 2018 or prior periods; however, we will use such methodology for any future real estate sales with continuing involvement. Our internal controls with respect to accounting for such sales have been updated accordingly. The adoption of this ASU resulted in no other changes with respect to the timing of revenue recognition or internal controls related to our other contracts with customers which include primarily management, development and construction fees and transient parking income, all of which are not material to our Consolidated Financial Statements. As such, there is no cumulative-effect adjustment from the adoption of this ASU reflected in our Consolidated Financial Statements. The FASB issued an ASU that requires entities to show changes in total cash, cash equivalents, restricted cash and restricted cash equivalents in the statement of cash flows. As a result, restricted cash and restricted cash equivalents will be included with cash and cash equivalents when reconciling the beginning of period and end of period balances rather than presented as transfers between cash and cash equivalents and restricted cash and restricted cash equivalents in the statement of cash flows. We adopted the ASU as of January 1, 2018 with retrospective application to our Consolidated Statements of Cash Flows. Accordingly, our Consolidated Statements of Cash Flows present a reconciliation of the changes in cash and cash equivalents and restricted cash. The effect of the adoption resulted in a $0.1 million decrease in net cash used in investing activities for the three months ended March 31, 2017. Restricted cash represents cash deposits that are legally restricted or held by third parties on our behalf, such as construction-related escrows, property disposition proceeds set aside and designated or intended to fund future tax-deferred exchanges of qualifying real estate investments, escrows and reserves for debt service, real estate taxes and property insurance established pursuant to certain mortgage financing arrangements and any deposits made with lenders to unencumber secured properties. The FASB issued an ASU that clarifies and narrows the definition of a business used in determining whether to account for a transaction as an asset acquisition or business combination. The guidance requires evaluation of the fair value of the assets acquired to determine if it is concentrated in a single identifiable asset or a group of similar identifiable assets. If so, the transferred assets would not be a business. The guidance also requires a business to include at least one substantive process and narrows the definition of outputs. We adopted the ASU prospectively as of January 1, 2018. We expect that the majority of our future acquisitions would not meet the definition of a business; therefore, the related acquisition costs would be capitalized as part of the purchase price. The FASB issued an ASU that clarifies when changes to the terms or conditions of a share-based payment award must be accounted for as modifications. The guidance requires modification accounting if the value, vesting conditions or classification of the award changes. We adopted the ASU as of January 1, 2018 with no effect on our Consolidated Financial Statements. 1. Description of Business and Significant Accounting Policies – Continued The FASB issued an ASU which sets out the principles for the recognition, measurement, presentation and disclosure of leases for both lessees and lessors. We are continuing to conduct our analysis of the impact of the guidance on our Consolidated Financial Statements and have an active project team working on the evaluation and implementation of the guidance. We continue to monitor FASB activity with respect to possible amendments to this ASU, particularly the FASB’s recent vote to provide an optional practical expedient to lessors that removes the requirement to separate lease and non-lease components when the pattern of recognition of those components are the same and, when combined as a single unit, those would be classified as operating leases. Should the proposed amendment be issued, we expect to elect the practical expedient as our initial analysis of our leases indicates that the pattern of recognition of our material non-lease components (primarily cost recovery income) are the same as the lease components and will not require the use of the five-step revenue recognition model discussed above. We currently believe that the adoption of the ASU will not significantly change the accounting for operating leases on our Consolidated Balance Sheets where we are the lessor, and that such leases will be accounted for in a similar method to existing standards with the underlying leased asset being reported and recognized as a real estate asset. In addition, the guidance requires lessors to capitalize and amortize only incremental direct leasing costs. As a result, upon the adoption of the ASU, we will no longer be able to capitalize and amortize certain leasing related costs and instead will expense these costs as incurred. We are in the process of evaluating the impact to our results of operations of expensing such costs. The ASU is required to be adopted in 2019 using a modified retrospective approach which requires a cumulative-effect adjustment to retained earnings as of the beginning of the fiscal year of adoption. Leases where we are the lessee include primarily our operating ground leases which are not material to our Consolidated Financial Statements. We will continue to refine our evaluation and finalize our implementation plan throughout 2018. The FASB issued an ASU that eliminates the requirement to separately measure and report hedge ineffectiveness and generally requires the entire change in the fair value of a hedging instrument to be presented in the same income statement line as the hedged item when the hedged item affects earnings. The ASU is required to be adopted in 2019 using a modified retrospective approach. We do not expect such adoption to have a material effect on our Consolidated Financial Statements. The FASB issued an ASU that requires, among other things, the use of a new current expected credit loss ("CECL") model in determining our allowances for doubtful accounts with respect to accounts receivable, accrued straight-line rents receivable and mortgages and notes receivable. The CECL model requires that we estimate our lifetime expected credit loss with respect to these receivables and record allowances that, when deducted from the balance of the receivables, represent the net amounts expected to be collected. We will also be required to disclose information about how we developed the allowances, including changes in the factors (e.g., portfolio mix, credit trends, unemployment, gross domestic product, etc.) that influenced our estimate of expected credit losses and the reasons for those changes. We will apply the ASU’s provisions as a cumulative-effect adjustment to retained earnings upon adoption in 2020. We are in the process of evaluating this ASU.

Real Estate Assets

Real Estate Assets	3 Months Ended
	Mar. 31, 2018
Real Estate [Abstract]
Real Estate Assets	Real Estate Assets During the first quarter of 2018, we acquired two development parcels totaling approximately nine acres in Nashville for an aggregate purchase price, including capitalized acquisition costs, of $50.6 million .

Mortgages and Notes Receivable

Mortgages and Notes Receivable	3 Months Ended
	Mar. 31, 2018
Receivables [Abstract]
Mortgages and Notes Receivable	Mortgages and Notes Receivable Mortgages and notes receivable were $6.2 million and $6.4 million at March 31, 2018 and December 31, 2017 , respectively. We evaluate the ability to collect our mortgages and notes receivable by monitoring the leasing statistics and/or market fundamentals of these assets. As of March 31, 2018 , our mortgages and notes receivable were not in default and there were no other indicators of impairment.

Intangible Assets and Below Mar

Intangible Assets and Below Market Lease Liabilities	3 Months Ended
	Mar. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets and Below Market Lease Liabilities	Intangible Assets and Below Market Lease Liabilities The following table sets forth total intangible assets and acquisition-related below market lease liabilities, net of accumulated amortization: March 31, December 31, Assets: Deferred leasing costs (including lease incentives and above market lease and in-place lease acquisition-related intangible assets) $ 343,211 $ 344,191 Less accumulated amortization (146,909 ) (143,512 ) $ 196,302 $ 200,679 Liabilities (in accounts payable, accrued expenses and other liabilities): Acquisition-related below market lease liabilities $ 59,646 $ 59,947 Less accumulated amortization (29,436 ) (28,214 ) $ 30,210 $ 31,733 The following table sets forth amortization of intangible assets and below market lease liabilities: Three Months Ended 2018 2017 Amortization of deferred leasing costs and acquisition-related intangible assets (in depreciation and amortization) $ 9,495 $ 10,619 Amortization of lease incentives (in rental and other revenues) $ 429 $ 397 Amortization of acquisition-related intangible assets (in rental and other revenues) $ 448 $ 1,036 Amortization of acquisition-related intangible assets (in rental property and other expenses) $ 137 $ 137 Amortization of acquisition-related below market lease liabilities (in rental and other revenues) $ (1,523 ) $ (1,580 ) The following table sets forth scheduled future amortization of intangible assets and below market lease liabilities: Amortization of Deferred Leasing Costs and Acquisition-Related Intangible Assets (in Depreciation and Amortization) Amortization of Lease Incentives (in Rental and Other Revenues) Amortization of Acquisition-Related Intangible Assets (in Rental and Other Revenues) Amortization of Acquisition-Related Intangible Assets (in Rental Property and Other Expenses) Amortization of Acquisition-Related Below Market Lease Liabilities (in Rental and Other Revenues) April 1 through December 31, 2018 $ 27,309 $ 1,218 $ 1,213 $ 416 $ (4,414 ) 2019 31,646 1,503 1,273 553 (5,446 ) 2020 27,150 1,227 959 518 (5,186 ) 2021 22,748 1,002 632 — (4,377 ) 2022 18,565 788 462 — (3,264 ) Thereafter 51,453 4,259 1,408 — (7,523 ) $ 178,871 $ 9,997 $ 5,947 $ 1,487 $ (30,210 ) Weighted average remaining amortization periods as of March 31, 2018 (in years) 7.6 9.8 6.5 2.7 6.4

Mortgages and Notes Payable

Mortgages and Notes Payable	3 Months Ended
	Mar. 31, 2018
Debt Disclosure [Abstract]
Mortgages and Notes Payable	Mortgages and Notes Payable The following table sets forth our mortgages and notes payable: March 31, December 31, Secured indebtedness $ 98,537 $ 98,981 Unsecured indebtedness 2,024,685 1,923,513 Less-unamortized debt issuance costs (10,638 ) (8,161 ) Total mortgages and notes payable, net $ 2,112,584 $ 2,014,333 At March 31, 2018 , our secured mortgage loans were collateralized by real estate assets with an aggregate undepreciated book value of $ 147.6 million . Our $ 600.0 million unsecured revolving credit facility is scheduled to mature in January 2022 and includes an accordion feature that allows for an additional $400.0 million of borrowing capacity subject to additional lender commitments. Assuming no defaults have occurred, we have an option to extend the maturity for two additional six -month periods. The interest rate at our current credit ratings is LIBOR plus 100 basis points and the annual facility fee is 20 basis points. There were no amounts outstanding under our revolving credit facility at March 31, 2018 . There was $172.0 million outstanding under our revolving credit facility at April 17, 2018 . At both March 31, 2018 and April 17, 2018 , we had $0.5 million of outstanding letters of credit, which reduces the availability on our revolving credit facility. As a result, the unused capacity of our revolving credit facility at March 31, 2018 and April 17, 2018 was $ 599.5 million and $427.5 million , respectively. During the first quarter of 2018, the Operating Partnership issued $350.0 million aggregate principal amount of 4.125% notes due 2028 , less original issuance discount of $4.1 million . These notes were priced to yield 4.271% . Underwriting fees and other expenses were incurred that aggregated $2.9 million ; these costs were deferred and will be amortized over the term of the notes. We are currently in compliance with financial covenants with respect to our consolidated debt. We have considered our short-term liquidity needs and the adequacy of our estimated cash flows from operating activities and other available financing sources to meet these needs. We intend to meet these short-term liquidity requirements through a combination of the following: • available cash and cash equivalents; • cash flows from operating activities; • issuance of debt securities by the Operating Partnership; • issuance of secured debt; • bank term loans; • borrowings under our revolving credit facility; • issuance of equity securities by the Company or the Operating Partnership; and • the disposition of non-core assets.

Derivative Financial Instrument

Derivative Financial Instruments	3 Months Ended
	Mar. 31, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	Derivative Financial Instruments During 2017, we entered into $150.0 million notional amount of forward-starting swaps that effectively locked the underlying 10 -year treasury rate at 2.44% with respect to a planned issuance of debt securities by the Operating Partnership. Upon issuance of the $350.0 million aggregate principal amount of 4.125% notes due 2028 during the first quarter of 2018, we terminated the forward-starting swaps resulting in an unrealized gain of $7.0 million in accumulated other comprehensive income and a gain of $0.2 million of hedge ineffectiveness in interest expense. The counterparties under our swaps are major financial institutions. The swap agreements contain a provision whereby if we default on certain of our indebtedness and which default results in repayment of such indebtedness being, or becoming capable of being, accelerated by the lender, then we could also be declared in default on our swaps. Our interest rate swaps have been designated as and are being accounted for as cash flow hedges with the effective portion of changes in fair value recorded in other comprehensive income each reporting period. No significant gain or loss was recognized related to hedge ineffectiveness or to amounts excluded from effectiveness testing on our cash flow hedges during the three months ended March 31, 2018 and 2017 . We have no collateral requirements related to our interest rate swaps. Amounts reported in accumulated other comprehensive income related to derivatives will be reclassified to interest expense as interest payments are made on our debt. During the period from April 1, 2018 through March 31, 2019 , we estimate that $2.4 million will be reclassified as a decrease to interest expense. The following table sets forth the fair value of our derivatives: March 31, December 31, Derivatives: Derivatives designated as cash flow hedges in prepaid expenses and other assets: Interest rate swaps $ 2,179 $ 1,286 The following table sets forth the effect of our cash flow hedges on accumulated other comprehensive income and interest expense: Three Months Ended 2018 2017 Derivatives Designated as Cash Flow Hedges: Amount of unrealized gains recognized in accumulated other comprehensive income on derivatives (effective portion): Interest rate swaps $ 7,877 $ 452 Amount of (gains)/losses reclassified out of accumulated other comprehensive income into contractual interest expense (effective portion): Interest rate swaps $ (106 ) $ 484

Noncontrolling Interests

Noncontrolling Interests	3 Months Ended
	Mar. 31, 2018
Noncontrolling Interest [Abstract]
Noncontrolling Interests	Noncontrolling Interests Noncontrolling Interests in Consolidated Affiliates At March 31, 2018 , our noncontrolling interests in consolidated affiliates relate to our joint venture partner's 50.0% interest in office properties in Richmond. Our joint venture partner is an unrelated third party. Noncontrolling Interests in the Operating Partnership The following table sets forth the Company's noncontrolling interests in the Operating Partnership: Three Months Ended 2018 2017 Beginning noncontrolling interests in the Operating Partnership $ 144,009 $ 144,802 Adjustment of noncontrolling interests in the Operating Partnership to fair value (19,582 ) (4,972 ) Conversions of Common Units to Common Stock (902 ) (102 ) Net income attributable to noncontrolling interests in the Operating Partnership 888 888 Distributions to noncontrolling interests in the Operating Partnership (1,300 ) (1,249 ) Total noncontrolling interests in the Operating Partnership $ 123,113 $ 139,367 The following table sets forth net income available for common stockholders and transfers from the Company's noncontrolling interests in the Operating Partnership: Three Months Ended 2018 2017 Net income available for common stockholders $ 32,449 $ 31,674 Increase in additional paid in capital from conversions of Common Units 902 102 Change from net income available for common stockholders and transfers from noncontrolling interests $ 33,351 $ 31,776

Disclosure About Fair Value of

Disclosure About Fair Value of Financial Instruments	3 Months Ended
	Mar. 31, 2018
Fair Value Disclosures [Abstract]
Disclosure About Fair Value of Financial Instruments	Disclosure About Fair Value of Financial Instruments The following summarizes the levels of inputs that we use to measure fair value. Level 1. Quoted prices in active markets for identical assets or liabilities. Our Level 1 asset is our investment in marketable securities that we use to pay benefits under our non-qualified deferred compensation plan. Our Level 1 liability is our non-qualified deferred compensation obligation. The Company's Level 1 noncontrolling interests in the Operating Partnership relate to the ownership of Common Units by various individuals and entities other than the Company. Level 2. Observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the related assets or liabilities. Our Level 2 assets include the fair value of our mortgages and notes receivable and interest rate swaps. Our Level 2 liabilities include the fair value of our mortgages and notes payable. 8. Disclosure About Fair Value of Financial Instruments - Continued The fair value of mortgages and notes receivable and mortgages and notes payable is estimated by the income approach utilizing contractual cash flows and market-based interest rates to approximate the price that would be paid in an orderly transaction between market participants. The fair value of interest rate swaps is determined using the market standard methodology of netting the discounted future fixed cash receipts and the discounted expected variable cash payments. The variable cash payments of interest rate swaps are based on the expectation of future interest rates (forward curves) derived from observed market interest rate curves. In addition, credit valuation adjustments are considered in the fair values to account for potential nonperformance risk, but were concluded to not be significant inputs to the calculation for the periods presented. The following table sets forth our assets and liabilities and the Company's noncontrolling interests in the Operating Partnership that are measured or disclosed at fair value within the fair value hierarchy. Level 1 Level 2 Total Quoted Prices in Active Markets for Identical Assets or Liabilities Significant Observable Inputs Fair Value at March 31, 2018: Assets: Mortgages and notes receivable, at fair value (1) $ 6,158 $ — $ 6,158 Interest rate swaps (in prepaid expenses and other assets) 2,179 — 2,179 Marketable securities of non-qualified deferred compensation plan (in prepaid expenses and other assets) 2,376 2,376 — Total Assets $ 10,713 $ 2,376 $ 8,337 Noncontrolling Interests in the Operating Partnership $ 123,113 $ 123,113 $ — Liabilities: Mortgages and notes payable, net, at fair value (1) $ 2,090,232 $ — $ 2,090,232 Non-qualified deferred compensation obligation (in accounts payable, accrued expenses and other liabilities) 2,376 2,376 — Total Liabilities $ 2,092,608 $ 2,376 $ 2,090,232 Fair Value at December 31, 2017: Assets: Mortgages and notes receivable, at fair value (1) $ 6,425 $ — $ 6,425 Interest rate swaps (in prepaid expenses and other assets) 1,286 — 1,286 Marketable securities of non-qualified deferred compensation plan (in prepaid expenses and other assets) 2,388 2,388 — Total Assets $ 10,099 $ 2,388 $ 7,711 Noncontrolling Interests in the Operating Partnership $ 144,009 $ 144,009 $ — Liabilities: Mortgages and notes payable, net, at fair value (1) $ 2,015,689 $ — $ 2,015,689 Non-qualified deferred compensation obligation (in accounts payable, accrued expenses and other liabilities) 2,388 2,388 — Total Liabilities $ 2,018,077 $ 2,388 $ 2,015,689 __________ (1) Amounts recorded at historical cost on our Consolidated Balance Sheets at March 31, 2018 and December 31, 2017 .

Share-Based Payments

Share-Based Payments	3 Months Ended
	Mar. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Share-Based Payments	Share-Based Payments During the three months ended March 31, 2018 , the Company granted 94,984 shares of time-based restricted stock and 77,456 shares of total return-based restricted stock with weighted average grant date fair values per share of $ 43.01 and $ 40.81 , respectively. We recorded share-based compensation expense of $ 4.3 million and $ 3.8 million during the three months ended March 31, 2018 and 2017 , respectively. At March 31, 2018 , there was $8.1 million of total unrecognized share-based compensation costs, which will be recognized over a weighted average remaining contractual term of 2.7 years.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss)	3 Months Ended
	Mar. 31, 2018
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated Other Comprehensive Income/(Loss)	Accumulated Other Comprehensive Income The following table sets forth the components of accumulated other comprehensive income: Three Months Ended 2018 2017 Cash flow hedges: Beginning balance $ 7,838 $ 4,949 Unrealized gains on cash flow hedges 7,877 452 Amortization of cash flow hedges (1) (106 ) 484 Total accumulated other comprehensive income $ 15,609 $ 5,885 __________ (1) Amounts reclassified out of accumulated other comprehensive income into contractual interest expense.

Real Estate and Other Assets He

Real Estate and Other Assets Held For Sale	3 Months Ended
	Mar. 31, 2018
Discontinued Operations and Disposal Groups [Abstract]
Real Estate and Other Assets Held For Sale	Real Estate and Other Assets Held For Sale The following table sets forth the assets held for sale at March 31, 2018 and December 31, 2017 , which are considered non-core: March 31, December 31, Assets: Land $ 870 $ 870 Buildings and tenant improvements 21,318 21,318 Land held for development 355 355 Less-accumulated depreciation (9,304 ) (9,304 ) Net real estate assets 13,239 13,239 Accrued straight-line rents receivable 475 591 Deferred leasing costs, net 255 253 Prepaid expenses and other assets 48 35 Real estate and other assets, net, held for sale $ 14,017 $ 14,118

Earnings Per Share and Per Unit

Earnings Per Share and Per Unit	3 Months Ended
	Mar. 31, 2018
Earnings Per Share [Abstract]
Earnings Per Share and Per Unit	Earnings Per Share and Per Unit The following table sets forth the computation of basic and diluted earnings per share of the Company: Three Months Ended 2018 2017 Earnings per Common Share - basic: Numerator: Net income $ 34,246 $ 33,485 Net (income) attributable to noncontrolling interests in the Operating Partnership (888 ) (888 ) Net (income) attributable to noncontrolling interests in consolidated affiliates (286 ) (300 ) Dividends on Preferred Stock (623 ) (623 ) Net income available for common stockholders $ 32,449 $ 31,674 Denominator: Denominator for basic earnings per Common Share – weighted average shares 103,324 101,738 Net income available for common stockholders $ 0.31 $ 0.31 Earnings per Common Share - diluted: Numerator: Net income $ 34,246 $ 33,485 Net (income) attributable to noncontrolling interests in consolidated affiliates (286 ) (300 ) Dividends on Preferred Stock (623 ) (623 ) Net income available for common stockholders before net (income) attributable to noncontrolling interests in the Operating Partnership $ 33,337 $ 32,562 Denominator: Denominator for basic earnings per Common Share – weighted average shares 103,324 101,738 Add: Stock options using the treasury method 26 85 Noncontrolling interests Common Units 2,815 2,838 Denominator for diluted earnings per Common Share – adjusted weighted average shares and assumed conversions (1) 106,165 104,661 Net income available for common stockholders $ 0.31 $ 0.31 __________ (1) Includes all unvested restricted stock where dividends on such restricted stock are non-forfeitable. 12. Earnings Per Share and Per Unit - Continued The following table sets forth the computation of basic and diluted earnings per unit of the Operating Partnership: Three Months Ended 2018 2017 Earnings per Common Unit - basic: Numerator: Net income $ 34,246 $ 33,485 Net (income) attributable to noncontrolling interests in consolidated affiliates (286 ) (300 ) Distributions on Preferred Units (623 ) (623 ) Net income available for common unitholders $ 33,337 $ 32,562 Denominator: Denominator for basic earnings per Common Unit – weighted average units 105,730 104,167 Net income available for common unitholders $ 0.32 $ 0.31 Earnings per Common Unit - diluted: Numerator: Net income $ 34,246 $ 33,485 Net (income) attributable to noncontrolling interests in consolidated affiliates (286 ) (300 ) Distributions on Preferred Units (623 ) (623 ) Net income available for common unitholders $ 33,337 $ 32,562 Denominator: Denominator for basic earnings per Common Unit – weighted average units 105,730 104,167 Add: Stock options using the treasury method 26 85 Denominator for diluted earnings per Common Unit – adjusted weighted average units and assumed conversions (1) 105,756 104,252 Net income available for common unitholders $ 0.32 $ 0.31 __________ (1) Includes all unvested restricted stock where distributions on such restricted stock are non-forfeitable.

Segment Information

Segment Information	3 Months Ended
	Mar. 31, 2018
Segment Reporting [Abstract]
Segment Information	Segment Information The following tables summarize the rental and other revenues and net operating income, the primary industry property-level performance metric used by our chief operating decision maker and which is defined as rental and other revenues less rental property and other expenses, for each of our reportable segments. Three Months Ended 2018 2017 Rental and Other Revenues: Office: Atlanta $ 35,483 $ 34,209 Greensboro 6,026 5,302 Memphis 10,208 11,795 Nashville 30,723 23,690 Orlando 13,300 12,438 Pittsburgh 15,282 14,849 Raleigh 29,804 29,546 Richmond 11,049 10,942 Tampa 25,425 23,256 Total Office Segment 177,300 166,027 Other 3,138 3,381 Total Rental and Other Revenues $ 180,438 $ 169,408 Net Operating Income: Office: Atlanta $ 22,670 $ 22,006 Greensboro 4,011 3,358 Memphis 6,645 7,272 Nashville 21,983 16,624 Orlando 8,263 7,578 Pittsburgh 8,971 8,625 Raleigh 21,872 21,465 Richmond 7,581 7,621 Tampa 16,760 15,122 Total Office Segment 118,756 109,671 Other 2,250 2,341 Total Net Operating Income 121,006 112,012 Reconciliation to income before disposition of investment properties and activity in unconsolidated affiliates: Depreciation and amortization (57,568 ) (56,145 ) General and administrative expenses (11,778 ) (11,490 ) Interest expense (18,391 ) (17,863 ) Other income 455 684 Income before disposition of investment properties and activity in unconsolidated affiliates $ 33,724 $ 27,198

Description of Business and S21

Description of Business and Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation Our Consolidated Financial Statements are prepared in conformity with accounting principles generally accepted in the United States of America (“GAAP”). The Company's Consolidated Financial Statements include the Operating Partnership, wholly owned subsidiaries and those entities in which the Company has the controlling interest. The Operating Partnership's Consolidated Financial Statements include wholly owned subsidiaries and those entities in which the Operating Partnership has the controlling interest. All intercompany transactions and accounts have been eliminated. The unaudited interim consolidated financial statements and accompanying unaudited consolidated financial information, in the opinion of management, contain all adjustments (including normal recurring accruals) necessary for a fair presentation of our financial position, results of operations and cash flows. We have condensed or omitted certain notes and other information from the interim Consolidated Financial Statements presented in this Quarterly Report as permitted by SEC rules and regulations. These Consolidated Financial Statements should be read in conjunction with our 2017 Annual Report on Form 10-K.
Insurance	Insurance Beginning in 2018, we are primarily self-insured for health care claims for eligible participating employees. We have stop-loss coverage to limit our exposure to significant claims on a per claim and annual aggregate basis. We determine our liabilities for claims, including incurred but not reported losses, based on all relevant information, including actuarial estimates of claim liabilities. At March 31, 2018 , a reserve of $0.4 million was recorded to cover estimated reported and unreported claims.
Use of Estimates	Use of Estimates The preparation of consolidated financial statements in accordance with GAAP requires us to make estimates and assumptions that affect the amounts reported in our Consolidated Financial Statements and accompanying notes. Actual results could differ from those estimates.
Recently Issued Accounting Standards	Recently Issued Accounting Standards The Financial Accounting Standards Board ("FASB") issued an accounting standards update ("ASU") which superseded the revenue recognition requirements under previous guidance. We adopted the ASU on January 1, 2018. Several updates have been issued subsequently which were intended to promote a more consistent interpretation and application of the principles outlined in the ASU. The ASU requires the use of a new five-step model to recognize revenue from contracts with customers. The five-step model requires that we identify the contract with the customer, identify the performance obligations in the contract, determine the transaction price, allocate the transaction price to the performance obligations in the contract and recognize revenue when we satisfy the performance obligations. We are also required to disclose information regarding the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers. In analyzing our contracts with customers, we determined that the most material potential impact from the adoption of this ASU would be in how revenue is recognized for sales of real estate with continuing involvement. Prior to the adoption of this ASU, profit for such sales transactions was recognized and then reduced by the maximum exposure to loss related to the nature of the continuing involvement at the time of sale. Upon adoption of this ASU, any continuing involvement must be analyzed as a separate performance obligation in the contract and a portion of the sales price allocated to each performance obligation. When the continuing involvement performance obligation is satisfied, the sales price allocated to it will be recognized. We had no sales of real estate with continuing involvement during the first quarter of 2018 or prior periods; however, we will use such methodology for any future real estate sales with continuing involvement. Our internal controls with respect to accounting for such sales have been updated accordingly. The adoption of this ASU resulted in no other changes with respect to the timing of revenue recognition or internal controls related to our other contracts with customers which include primarily management, development and construction fees and transient parking income, all of which are not material to our Consolidated Financial Statements. As such, there is no cumulative-effect adjustment from the adoption of this ASU reflected in our Consolidated Financial Statements. The FASB issued an ASU that requires entities to show changes in total cash, cash equivalents, restricted cash and restricted cash equivalents in the statement of cash flows. As a result, restricted cash and restricted cash equivalents will be included with cash and cash equivalents when reconciling the beginning of period and end of period balances rather than presented as transfers between cash and cash equivalents and restricted cash and restricted cash equivalents in the statement of cash flows. We adopted the ASU as of January 1, 2018 with retrospective application to our Consolidated Statements of Cash Flows. Accordingly, our Consolidated Statements of Cash Flows present a reconciliation of the changes in cash and cash equivalents and restricted cash. The effect of the adoption resulted in a $0.1 million decrease in net cash used in investing activities for the three months ended March 31, 2017. Restricted cash represents cash deposits that are legally restricted or held by third parties on our behalf, such as construction-related escrows, property disposition proceeds set aside and designated or intended to fund future tax-deferred exchanges of qualifying real estate investments, escrows and reserves for debt service, real estate taxes and property insurance established pursuant to certain mortgage financing arrangements and any deposits made with lenders to unencumber secured properties. The FASB issued an ASU that clarifies and narrows the definition of a business used in determining whether to account for a transaction as an asset acquisition or business combination. The guidance requires evaluation of the fair value of the assets acquired to determine if it is concentrated in a single identifiable asset or a group of similar identifiable assets. If so, the transferred assets would not be a business. The guidance also requires a business to include at least one substantive process and narrows the definition of outputs. We adopted the ASU prospectively as of January 1, 2018. We expect that the majority of our future acquisitions would not meet the definition of a business; therefore, the related acquisition costs would be capitalized as part of the purchase price. The FASB issued an ASU that clarifies when changes to the terms or conditions of a share-based payment award must be accounted for as modifications. The guidance requires modification accounting if the value, vesting conditions or classification of the award changes. We adopted the ASU as of January 1, 2018 with no effect on our Consolidated Financial Statements. 1. Description of Business and Significant Accounting Policies – Continued The FASB issued an ASU which sets out the principles for the recognition, measurement, presentation and disclosure of leases for both lessees and lessors. We are continuing to conduct our analysis of the impact of the guidance on our Consolidated Financial Statements and have an active project team working on the evaluation and implementation of the guidance. We continue to monitor FASB activity with respect to possible amendments to this ASU, particularly the FASB’s recent vote to provide an optional practical expedient to lessors that removes the requirement to separate lease and non-lease components when the pattern of recognition of those components are the same and, when combined as a single unit, those would be classified as operating leases. Should the proposed amendment be issued, we expect to elect the practical expedient as our initial analysis of our leases indicates that the pattern of recognition of our material non-lease components (primarily cost recovery income) are the same as the lease components and will not require the use of the five-step revenue recognition model discussed above. We currently believe that the adoption of the ASU will not significantly change the accounting for operating leases on our Consolidated Balance Sheets where we are the lessor, and that such leases will be accounted for in a similar method to existing standards with the underlying leased asset being reported and recognized as a real estate asset. In addition, the guidance requires lessors to capitalize and amortize only incremental direct leasing costs. As a result, upon the adoption of the ASU, we will no longer be able to capitalize and amortize certain leasing related costs and instead will expense these costs as incurred. We are in the process of evaluating the impact to our results of operations of expensing such costs. The ASU is required to be adopted in 2019 using a modified retrospective approach which requires a cumulative-effect adjustment to retained earnings as of the beginning of the fiscal year of adoption. Leases where we are the lessee include primarily our operating ground leases which are not material to our Consolidated Financial Statements. We will continue to refine our evaluation and finalize our implementation plan throughout 2018. The FASB issued an ASU that eliminates the requirement to separately measure and report hedge ineffectiveness and generally requires the entire change in the fair value of a hedging instrument to be presented in the same income statement line as the hedged item when the hedged item affects earnings. The ASU is required to be adopted in 2019 using a modified retrospective approach. We do not expect such adoption to have a material effect on our Consolidated Financial Statements. The FASB issued an ASU that requires, among other things, the use of a new current expected credit loss ("CECL") model in determining our allowances for doubtful accounts with respect to accounts receivable, accrued straight-line rents receivable and mortgages and notes receivable. The CECL model requires that we estimate our lifetime expected credit loss with respect to these receivables and record allowances that, when deducted from the balance of the receivables, represent the net amounts expected to be collected. We will also be required to disclose information about how we developed the allowances, including changes in the factors (e.g., portfolio mix, credit trends, unemployment, gross domestic product, etc.) that influenced our estimate of expected credit losses and the reasons for those changes. We will apply the ASU’s provisions as a cumulative-effect adjustment to retained earnings upon adoption in 2020. We are in the process of evaluating this ASU.

Intangible Assets and Below M22

Intangible Assets and Below Market Lease Liabilities (Tables)	3 Months Ended
	Mar. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Total Intangible Assets and Below Market Lease Liabilities	The following table sets forth total intangible assets and acquisition-related below market lease liabilities, net of accumulated amortization: March 31, December 31, Assets: Deferred leasing costs (including lease incentives and above market lease and in-place lease acquisition-related intangible assets) $ 343,211 $ 344,191 Less accumulated amortization (146,909 ) (143,512 ) $ 196,302 $ 200,679 Liabilities (in accounts payable, accrued expenses and other liabilities): Acquisition-related below market lease liabilities $ 59,646 $ 59,947 Less accumulated amortization (29,436 ) (28,214 ) $ 30,210 $ 31,733
Amortization of Intangible Assets and Below Market Lease Liabilities	The following table sets forth amortization of intangible assets and below market lease liabilities: Three Months Ended 2018 2017 Amortization of deferred leasing costs and acquisition-related intangible assets (in depreciation and amortization) $ 9,495 $ 10,619 Amortization of lease incentives (in rental and other revenues) $ 429 $ 397 Amortization of acquisition-related intangible assets (in rental and other revenues) $ 448 $ 1,036 Amortization of acquisition-related intangible assets (in rental property and other expenses) $ 137 $ 137 Amortization of acquisition-related below market lease liabilities (in rental and other revenues) $ (1,523 ) $ (1,580 )
Scheduled Future Amortization of Intangible Assets and Below Market Lease Liabilities	The following table sets forth scheduled future amortization of intangible assets and below market lease liabilities: Amortization of Deferred Leasing Costs and Acquisition-Related Intangible Assets (in Depreciation and Amortization) Amortization of Lease Incentives (in Rental and Other Revenues) Amortization of Acquisition-Related Intangible Assets (in Rental and Other Revenues) Amortization of Acquisition-Related Intangible Assets (in Rental Property and Other Expenses) Amortization of Acquisition-Related Below Market Lease Liabilities (in Rental and Other Revenues) April 1 through December 31, 2018 $ 27,309 $ 1,218 $ 1,213 $ 416 $ (4,414 ) 2019 31,646 1,503 1,273 553 (5,446 ) 2020 27,150 1,227 959 518 (5,186 ) 2021 22,748 1,002 632 — (4,377 ) 2022 18,565 788 462 — (3,264 ) Thereafter 51,453 4,259 1,408 — (7,523 ) $ 178,871 $ 9,997 $ 5,947 $ 1,487 $ (30,210 ) Weighted average remaining amortization periods as of March 31, 2018 (in years) 7.6 9.8 6.5 2.7 6.4

Mortgages and Notes Payable (Ta

Mortgages and Notes Payable (Tables)	3 Months Ended
	Mar. 31, 2018
Debt Disclosure [Abstract]
Schedule of Consolidated Mortgages and Notes Payable	The following table sets forth our mortgages and notes payable: March 31, December 31, Secured indebtedness $ 98,537 $ 98,981 Unsecured indebtedness 2,024,685 1,923,513 Less-unamortized debt issuance costs (10,638 ) (8,161 ) Total mortgages and notes payable, net $ 2,112,584 $ 2,014,333

Derivative Financial Instrume24

Derivative Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Instruments, Fair Value	The following table sets forth the fair value of our derivatives: March 31, December 31, Derivatives: Derivatives designated as cash flow hedges in prepaid expenses and other assets: Interest rate swaps $ 2,179 $ 1,286
Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance	The following table sets forth the effect of our cash flow hedges on accumulated other comprehensive income and interest expense: Three Months Ended 2018 2017 Derivatives Designated as Cash Flow Hedges: Amount of unrealized gains recognized in accumulated other comprehensive income on derivatives (effective portion): Interest rate swaps $ 7,877 $ 452 Amount of (gains)/losses reclassified out of accumulated other comprehensive income into contractual interest expense (effective portion): Interest rate swaps $ (106 ) $ 484

Noncontrolling Interests (Table

Noncontrolling Interests (Tables) - Highwoods Properties, Inc. [Member]	3 Months Ended
	Mar. 31, 2018
Noncontrolling Interest [Line Items]
Noncontrolling Interests in the Operating Partnership	The following table sets forth the Company's noncontrolling interests in the Operating Partnership: Three Months Ended 2018 2017 Beginning noncontrolling interests in the Operating Partnership $ 144,009 $ 144,802 Adjustment of noncontrolling interests in the Operating Partnership to fair value (19,582 ) (4,972 ) Conversions of Common Units to Common Stock (902 ) (102 ) Net income attributable to noncontrolling interests in the Operating Partnership 888 888 Distributions to noncontrolling interests in the Operating Partnership (1,300 ) (1,249 ) Total noncontrolling interests in the Operating Partnership $ 123,113 $ 139,367
Net Income Available for Common Stockholders and Transfers From Noncontrolling Interests in the Operating Partnership	The following table sets forth net income available for common stockholders and transfers from the Company's noncontrolling interests in the Operating Partnership: Three Months Ended 2018 2017 Net income available for common stockholders $ 32,449 $ 31,674 Increase in additional paid in capital from conversions of Common Units 902 102 Change from net income available for common stockholders and transfers from noncontrolling interests $ 33,351 $ 31,776

Disclosure About Fair Value o26

Disclosure About Fair Value of Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2018
Fair Value Disclosures [Abstract]
Fair Value Measurements of Assets, Liabilities and Noncontrolling Interests	The following table sets forth our assets and liabilities and the Company's noncontrolling interests in the Operating Partnership that are measured or disclosed at fair value within the fair value hierarchy. Level 1 Level 2 Total Quoted Prices in Active Markets for Identical Assets or Liabilities Significant Observable Inputs Fair Value at March 31, 2018: Assets: Mortgages and notes receivable, at fair value (1) $ 6,158 $ — $ 6,158 Interest rate swaps (in prepaid expenses and other assets) 2,179 — 2,179 Marketable securities of non-qualified deferred compensation plan (in prepaid expenses and other assets) 2,376 2,376 — Total Assets $ 10,713 $ 2,376 $ 8,337 Noncontrolling Interests in the Operating Partnership $ 123,113 $ 123,113 $ — Liabilities: Mortgages and notes payable, net, at fair value (1) $ 2,090,232 $ — $ 2,090,232 Non-qualified deferred compensation obligation (in accounts payable, accrued expenses and other liabilities) 2,376 2,376 — Total Liabilities $ 2,092,608 $ 2,376 $ 2,090,232 Fair Value at December 31, 2017: Assets: Mortgages and notes receivable, at fair value (1) $ 6,425 $ — $ 6,425 Interest rate swaps (in prepaid expenses and other assets) 1,286 — 1,286 Marketable securities of non-qualified deferred compensation plan (in prepaid expenses and other assets) 2,388 2,388 — Total Assets $ 10,099 $ 2,388 $ 7,711 Noncontrolling Interests in the Operating Partnership $ 144,009 $ 144,009 $ — Liabilities: Mortgages and notes payable, net, at fair value (1) $ 2,015,689 $ — $ 2,015,689 Non-qualified deferred compensation obligation (in accounts payable, accrued expenses and other liabilities) 2,388 2,388 — Total Liabilities $ 2,018,077 $ 2,388 $ 2,015,689 __________ (1) Amounts recorded at historical cost on our Consolidated Balance Sheets at March 31, 2018 and December 31, 2017 .

Accumulated Other Comprehensi27

Accumulated Other Comprehensive Income (Loss) (Tables)	3 Months Ended
	Mar. 31, 2018
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Components of Accumulated Other Comprehensive Income/(Loss)	The following table sets forth the components of accumulated other comprehensive income: Three Months Ended 2018 2017 Cash flow hedges: Beginning balance $ 7,838 $ 4,949 Unrealized gains on cash flow hedges 7,877 452 Amortization of cash flow hedges (1) (106 ) 484 Total accumulated other comprehensive income $ 15,609 $ 5,885 __________ (1) Amounts reclassified out of accumulated other comprehensive income into contractual interest expense.

Real Estate and Other Assets 28

Real Estate and Other Assets Held For Sale (Tables)	3 Months Ended
	Mar. 31, 2018
Discontinued Operations and Disposal Groups [Abstract]
Real Estate and Other Assets of the Properties Classified As Held For Sale	The following table sets forth the assets held for sale at March 31, 2018 and December 31, 2017 , which are considered non-core: March 31, December 31, Assets: Land $ 870 $ 870 Buildings and tenant improvements 21,318 21,318 Land held for development 355 355 Less-accumulated depreciation (9,304 ) (9,304 ) Net real estate assets 13,239 13,239 Accrued straight-line rents receivable 475 591 Deferred leasing costs, net 255 253 Prepaid expenses and other assets 48 35 Real estate and other assets, net, held for sale $ 14,017 $ 14,118

Earnings Per Share and Per Un29

Earnings Per Share and Per Unit (Tables)	3 Months Ended
	Mar. 31, 2018
Earnings Per Share and Per Unit Basic and Diluted [Line Items]
Earnings Per Share	The following table sets forth the computation of basic and diluted earnings per share of the Company: Three Months Ended 2018 2017 Earnings per Common Share - basic: Numerator: Net income $ 34,246 $ 33,485 Net (income) attributable to noncontrolling interests in the Operating Partnership (888 ) (888 ) Net (income) attributable to noncontrolling interests in consolidated affiliates (286 ) (300 ) Dividends on Preferred Stock (623 ) (623 ) Net income available for common stockholders $ 32,449 $ 31,674 Denominator: Denominator for basic earnings per Common Share – weighted average shares 103,324 101,738 Net income available for common stockholders $ 0.31 $ 0.31 Earnings per Common Share - diluted: Numerator: Net income $ 34,246 $ 33,485 Net (income) attributable to noncontrolling interests in consolidated affiliates (286 ) (300 ) Dividends on Preferred Stock (623 ) (623 ) Net income available for common stockholders before net (income) attributable to noncontrolling interests in the Operating Partnership $ 33,337 $ 32,562 Denominator: Denominator for basic earnings per Common Share – weighted average shares 103,324 101,738 Add: Stock options using the treasury method 26 85 Noncontrolling interests Common Units 2,815 2,838 Denominator for diluted earnings per Common Share – adjusted weighted average shares and assumed conversions (1) 106,165 104,661 Net income available for common stockholders $ 0.31 $ 0.31 __________ (1) Includes all unvested restricted stock where dividends on such restricted stock are non-forfeitable.
Highwoods Realty Limited Partnership [Member]
Earnings Per Share and Per Unit Basic and Diluted [Line Items]
Earnings Per Unit	The following table sets forth the computation of basic and diluted earnings per unit of the Operating Partnership: Three Months Ended 2018 2017 Earnings per Common Unit - basic: Numerator: Net income $ 34,246 $ 33,485 Net (income) attributable to noncontrolling interests in consolidated affiliates (286 ) (300 ) Distributions on Preferred Units (623 ) (623 ) Net income available for common unitholders $ 33,337 $ 32,562 Denominator: Denominator for basic earnings per Common Unit – weighted average units 105,730 104,167 Net income available for common unitholders $ 0.32 $ 0.31 Earnings per Common Unit - diluted: Numerator: Net income $ 34,246 $ 33,485 Net (income) attributable to noncontrolling interests in consolidated affiliates (286 ) (300 ) Distributions on Preferred Units (623 ) (623 ) Net income available for common unitholders $ 33,337 $ 32,562 Denominator: Denominator for basic earnings per Common Unit – weighted average units 105,730 104,167 Add: Stock options using the treasury method 26 85 Denominator for diluted earnings per Common Unit – adjusted weighted average units and assumed conversions (1) 105,756 104,252 Net income available for common unitholders $ 0.32 $ 0.31 __________ (1) Includes all unvested restricted stock where distributions on such restricted stock are non-forfeitable.

Segment Information (Tables)

Segment Information (Tables)	3 Months Ended
	Mar. 31, 2018
Segment Reporting [Abstract]
Reconciliation of Revenue from Segments to Consolidated	The following tables summarize the rental and other revenues and net operating income, the primary industry property-level performance metric used by our chief operating decision maker and which is defined as rental and other revenues less rental property and other expenses, for each of our reportable segments. Three Months Ended 2018 2017 Rental and Other Revenues: Office: Atlanta $ 35,483 $ 34,209 Greensboro 6,026 5,302 Memphis 10,208 11,795 Nashville 30,723 23,690 Orlando 13,300 12,438 Pittsburgh 15,282 14,849 Raleigh 29,804 29,546 Richmond 11,049 10,942 Tampa 25,425 23,256 Total Office Segment 177,300 166,027 Other 3,138 3,381 Total Rental and Other Revenues $ 180,438 $ 169,408
Reconciliation of Operating Profit (Loss) from Segments to Consolidated	Net Operating Income: Office: Atlanta $ 22,670 $ 22,006 Greensboro 4,011 3,358 Memphis 6,645 7,272 Nashville 21,983 16,624 Orlando 8,263 7,578 Pittsburgh 8,971 8,625 Raleigh 21,872 21,465 Richmond 7,581 7,621 Tampa 16,760 15,122 Total Office Segment 118,756 109,671 Other 2,250 2,341 Total Net Operating Income 121,006 112,012 Reconciliation to income before disposition of investment properties and activity in unconsolidated affiliates: Depreciation and amortization (57,568 ) (56,145 ) General and administrative expenses (11,778 ) (11,490 ) Interest expense (18,391 ) (17,863 ) Other income 455 684 Income before disposition of investment properties and activity in unconsolidated affiliates $ 33,724 $ 27,198

Description of Business and S31

Description of Business and Significant Accounting Policies (Details) ft² in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2018USD ($)aft²shares	Mar. 31, 2017USD ($)
Description of Business and Significant Accounting Policies [Line Items]
Rentable square feet of commercial real estate properties (in sq feet) | ft²	30.7
Rentable square feet of commercial real estate properties under development (in sq feet) | ft²	1.5
Undeveloped land suitable for future development (in acres) | a	400
Self insurance liability | $	$ 0.4
Accounting Standards Update 2016-18 [Member]
Description of Business and Significant Accounting Policies [Line Items]
Net decrease in investing activities, effect of adoption, quantification | $		$ 0.1
Highwoods Properties, Inc. [Member]
Description of Business and Significant Accounting Policies [Line Items]
Common Units of partnership owned by the Company (in shares)	103,000,000
Percentage of ownership of Common Units (in hundredths)	97.40%
Common Units redeemed for a like number of common shares of stock (in shares)	19,196
Highwoods Realty Limited Partnership [Member]
Description of Business and Significant Accounting Policies [Line Items]
Common Units of partnership not owned by the Company (in shares)	2,800,000

Real Estate Assets (Details)

Real Estate Assets (Details) $ in Millions	3 Months Ended
	Mar. 31, 2018USD ($)aparcels
Acquisitions [Abstract]
Undeveloped land suitable for future development (in acres)	400
Nashville TN Land Acquisition [Member]
Acquisitions [Abstract]
Number of development parcels acquired (in parcels) | parcels	2
Undeveloped land suitable for future development (in acres)	9
Purchase price of acquisition | $	$ 50.6

Mortgages and Notes Receivable

Mortgages and Notes Receivable (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Mortgages and notes receivable [Abstract]
Mortgages and notes receivable, net	$ 6,158	$ 6,425

Intangible Assets and Below M34

Intangible Assets and Below Market Lease Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Assets:
Deferred leasing costs (including lease incentives and above market lease and in-place lease acquisition-related intangible assets)	$ 343,211		$ 344,191
Deferred leasing costs, accumulated amortization	(146,909)		(143,512)
Deferred leasing costs, net/Total scheduled future amortization of intangible assets	196,302		200,679
Liabilities (in accounts payable, accrued expenses and other liabilities):
Acquisition-related below market lease liabilities, gross	59,646		59,947
Acquisition-related below market lease liabilities, accumulated amortization	(29,436)		(28,214)
Acquisition-related below market lease liabilities, net	30,210		$ 31,733
Deferred Leasing Costs and Acquisition-Related Intangible Assets (in Depreciation and Amortization) [Member]
Assets:
Deferred leasing costs, net/Total scheduled future amortization of intangible assets	178,871
Amortization of intangible assets and below market lease liabilities [Abstract]
Amortization of intangible assets	9,495	$ 10,619
Lease Incentives (in Rental and Other Revenues) [Member]
Assets:
Deferred leasing costs, net/Total scheduled future amortization of intangible assets	9,997
Amortization of intangible assets and below market lease liabilities [Abstract]
Amortization of intangible assets	429	397
Acquisition-Related Intangible Assets (in Rental and Other Revenues) [Member]
Assets:
Deferred leasing costs, net/Total scheduled future amortization of intangible assets	5,947
Amortization of intangible assets and below market lease liabilities [Abstract]
Amortization of intangible assets	448	1,036
Acquisition-Related Intangible Assets (in Rental Property and Other Expenses) [Member]
Assets:
Deferred leasing costs, net/Total scheduled future amortization of intangible assets	1,487
Amortization of intangible assets and below market lease liabilities [Abstract]
Amortization of intangible assets	137	137
Acquisition-Related Below Market Lease Liabilities (in Rental and Other Revenues) [Member]
Liabilities (in accounts payable, accrued expenses and other liabilities):
Acquisition-related below market lease liabilities, net	30,210
Amortization of intangible assets and below market lease liabilities [Abstract]
Amortization of acquisition-related below market lease liabilities	$ (1,523)	$ (1,580)

Intangible Assets and Below M35

Intangible Assets and Below Market Lease Liabilities - Scheduled Future Amortization (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Scheduled future amortization of intangible assets [Abstract]
Deferred leasing costs, net/Total scheduled future amortization of intangible assets	$ 196,302	$ 200,679
Scheduled future amortization of below market lease liabilities [Abstract]
Total scheduled future amortization of acquisition-related below market lease liabilities	(30,210)	$ (31,733)
Deferred Leasing Costs and Acquisition-Related Intangible Assets (in Depreciation and Amortization) [Member]
Scheduled future amortization of intangible assets [Abstract]
April 1 through December 31, 2018	27,309
2,019	31,646
2,020	27,150
2,021	22,748
2,022	18,565
Thereafter	51,453
Deferred leasing costs, net/Total scheduled future amortization of intangible assets	$ 178,871
Weighted average remaining amortization periods for intangible assets and below market lease liabilities [Abstract]
Finite-lived intangible assets, average useful life (in years)	7 years 7 months 7 days
Lease Incentives (in Rental and Other Revenues) [Member]
Scheduled future amortization of intangible assets [Abstract]
April 1 through December 31, 2018	$ 1,218
2,019	1,503
2,020	1,227
2,021	1,002
2,022	788
Thereafter	4,259
Deferred leasing costs, net/Total scheduled future amortization of intangible assets	$ 9,997
Weighted average remaining amortization periods for intangible assets and below market lease liabilities [Abstract]
Finite-lived intangible assets, average useful life (in years)	9 years 9 months 20 days
Acquisition-Related Intangible Assets (in Rental and Other Revenues) [Member]
Scheduled future amortization of intangible assets [Abstract]
April 1 through December 31, 2018	$ 1,213
2,019	1,273
2,020	959
2,021	632
2,022	462
Thereafter	1,408
Deferred leasing costs, net/Total scheduled future amortization of intangible assets	$ 5,947
Weighted average remaining amortization periods for intangible assets and below market lease liabilities [Abstract]
Finite-lived intangible assets, average useful life (in years)	6 years 6 months
Acquisition-Related Intangible Assets (in Rental Property and Other Expenses) [Member]
Scheduled future amortization of intangible assets [Abstract]
April 1 through December 31, 2018	$ 416
2,019	553
2,020	518
2,021	0
2,022	0
Thereafter	0
Deferred leasing costs, net/Total scheduled future amortization of intangible assets	$ 1,487
Weighted average remaining amortization periods for intangible assets and below market lease liabilities [Abstract]
Finite-lived intangible assets, average useful life (in years)	2 years 8 months 15 days
Acquisition-Related Below Market Lease Liabilities (in Rental and Other Revenues) [Member]
Scheduled future amortization of below market lease liabilities [Abstract]
April 1 through December 31, 2018	$ (4,414)
2,019	(5,446)
2,020	(5,186)
2,021	(4,377)
2,022	(3,264)
Thereafter	(7,523)
Total scheduled future amortization of acquisition-related below market lease liabilities	$ (30,210)
Weighted average remaining amortization periods for intangible assets and below market lease liabilities [Abstract]
Finite-lived below market lease liabilities, average useful life (in years)	6 years 4 months 25 days

Mortgages and Notes Payable (De

Mortgages and Notes Payable (Details)	3 Months Ended
	Mar. 31, 2018USD ($)extensions	Apr. 17, 2018USD ($)	Dec. 31, 2017USD ($)
Debt Instrument [Line Items]
Mortgages and notes payable	$ 2,112,584,000		$ 2,014,333,000
Unamortized debt issuance costs	(10,638,000)		(8,161,000)
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity on revolving credit facility	$ 600,000,000
Maturity date on revolving credit facility	Jan. 1, 2022
Additional borrowing capacity on revolving credit facility	$ 400,000,000
Number of additional extensions | extensions	2
Term of optional extension	6 months
Annual facility fee (in hundredths)	0.20%
Amount outstanding on revolving credit facility	$ 0
Outstanding letters of credit on revolving credit facility	500,000
Unused borrowing capacity on revolving credit facility	599,500,000
4.125% (4.271% effective rate) Notes due 2028 [Member]
Debt Instrument [Line Items]
Principal debt amount	$ 350,000,000
Interest rate (in hundredths)	4.125%
Scheduled maturity date	Mar. 15, 2028
Original issue discount	$ 4,100,000
Effective interest rate (in hundredths)	4.271%
Debt issuance costs incurred	$ 2,900,000
Secured indebtedness [Member]
Debt Instrument [Line Items]
Mortgages and notes payable	98,537,000		98,981,000
Aggregate undepreciated book value of secured real estate assets	147,600,000
Unsecured indebtedness [Member]
Debt Instrument [Line Items]
Mortgages and notes payable	$ 2,024,685,000		$ 1,923,513,000
London Interbank Offered Rate (LIBOR) [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Facility interest rate basis	LIBOR plus 100 basis points
Interest rate, basis spread (in hundredths)	1.00%
Subsequent Event [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Amount outstanding on revolving credit facility		$ 172,000,000
Outstanding letters of credit on revolving credit facility		500,000
Unused borrowing capacity on revolving credit facility		$ 427,500,000

Derivative Financial Instrume37

Derivative Financial Instruments (Details) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017	Mar. 31, 2019
Derivatives designated as cash flow hedges in prepaid expenses and other assets:
Interest rate swaps	$ 2,179,000		$ 1,286,000
Amount of unrealized gains recognized in accumulated other comprehensive income on derivatives (effective portion):
Interest rate swaps	7,877,000	$ 452,000
Amount of (gains)/losses reclassified out of accumulated other comprehensive income into contractual interest expense (effective portion):
Interest rate swaps	(106,000)	$ 484,000
4.125% (4.271% effective rate) Notes due 2028 [Member]
Derivative [Line Items]
Principal debt amount	$ 350,000,000
Interest rate (in hundredths)	4.125%
Forward Starting Swaps [Member]
Derivative [Line Items]
Amount of borrowings, subject to swaps			$ 150,000,000
Underlying treasury rate term (in periods)			10 years
Underlying treasury rate locked by forward-starting swaps (in hundredths)			2.44%
Gain on forward-starting interest rate swaps	$ 7,000,000
Gain on hedge ineffectiveness in interest expense	$ 200,000
Scenario, Forecast [Member]
Derivative [Line Items]
Expected increase to interest expense				$ 2,400,000

Noncontrolling Interests (Detai

Noncontrolling Interests (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Noncontrolling Interests in Consolidated Affiliates [Abstract]
Consolidated joint venture, partner's interest (in hundredths)	50.00%
Noncontrolling Interests in the Operating Partnership [Roll Forward]
Beginning noncontrolling interests in the Operating Partnership	$ 144,009
Adjustment of noncontrolling interests in the Operating Partnership to fair value	(19,582)	$ (4,972)
Conversions of Common Units to Common Stock	(902)	(102)
Net income attributable to noncontrolling interests in the Operating Partnership	888	888
Distributions to noncontrolling interests in the Operating Partnership	(1,300)	(1,249)
Total noncontrolling interests in the Operating Partnership	123,113
Net Income Available for Common Stockholders and Transfers From Noncontrolling Interests in the Operating Partnership [Abstract]
Net income available for common stockholders	32,449	31,674
Highwoods Properties, Inc. [Member]
Noncontrolling Interests in the Operating Partnership [Roll Forward]
Beginning noncontrolling interests in the Operating Partnership	144,009	144,802
Adjustment of noncontrolling interests in the Operating Partnership to fair value	(19,582)	(4,972)
Conversions of Common Units to Common Stock	(902)	(102)
Net income attributable to noncontrolling interests in the Operating Partnership	888	888
Distributions to noncontrolling interests in the Operating Partnership	(1,300)	(1,249)
Total noncontrolling interests in the Operating Partnership	123,113	139,367
Net Income Available for Common Stockholders and Transfers From Noncontrolling Interests in the Operating Partnership [Abstract]
Net income available for common stockholders	32,449	31,674
Increase in additional paid in capital from conversions of Common Units to Common Stock	902	102
Change from net income available for common stockholders and transfers from noncontrolling interests	$ 33,351	$ 31,776

Disclosure About Fair Value o39

Disclosure About Fair Value of Financial Instruments - Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Assets:
Mortgages and notes receivable, at fair value	$ 6,158	$ 6,425
Interest rate swaps (in prepaid expenses and other assets)	2,179	1,286
Marketable securities of non-qualified deferred compensation plan (in prepaid expenses and other assets)	2,376	2,388
Total Assets	10,713	10,099
Liabilities:
Mortgages and notes payable, net, at fair value	2,090,232	2,015,689
Non-qualified deferred compensation obligation (in accounts payable, accrued expenses and other liabilities)	2,376	2,388
Total Liabilities	2,092,608	2,018,077
Level 1 [Member]
Assets:
Mortgages and notes receivable, at fair value	0	0
Interest rate swaps (in prepaid expenses and other assets)	0	0
Marketable securities of non-qualified deferred compensation plan (in prepaid expenses and other assets)	2,376	2,388
Total Assets	2,376	2,388
Liabilities:
Mortgages and notes payable, net, at fair value	0	0
Non-qualified deferred compensation obligation (in accounts payable, accrued expenses and other liabilities)	2,376	2,388
Total Liabilities	2,376	2,388
Level 2 [Member]
Assets:
Mortgages and notes receivable, at fair value	6,158	6,425
Interest rate swaps (in prepaid expenses and other assets)	2,179	1,286
Marketable securities of non-qualified deferred compensation plan (in prepaid expenses and other assets)	0	0
Total Assets	8,337	7,711
Liabilities:
Mortgages and notes payable, net, at fair value	2,090,232	2,015,689
Non-qualified deferred compensation obligation (in accounts payable, accrued expenses and other liabilities)	0	0
Total Liabilities	2,090,232	2,015,689
Highwoods Properties, Inc. [Member]
Assets:
Noncontrolling Interests in the Operating Partnership	123,113	144,009
Highwoods Properties, Inc. [Member] | Level 1 [Member]
Assets:
Noncontrolling Interests in the Operating Partnership	123,113	144,009
Highwoods Properties, Inc. [Member] | Level 2 [Member]
Assets:
Noncontrolling Interests in the Operating Partnership	$ 0	$ 0

Share-Based Payments (Details)

Share-Based Payments (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 4,295	$ 3,783
Total unrecognized stock-based compensation costs	$ 8,100
Weighted average remaining contractual term for recognition of unrecognized stock-based compensation costs (in years)	2 years 8 months 13 days
Highwoods Properties, Inc. [Member] | Time-Based Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock shares granted (in shares)	94,984
Weighted average grant date fair value of each restricted stock share granted (in dollars per share)	$ 43.01
Highwoods Properties, Inc. [Member] | Total Return-Based Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock shares granted (in shares)	77,456
Weighted average grant date fair value of each restricted stock share granted (in dollars per share)	$ 40.81

Accumulated Other Comprehensi41

Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Accumulated Other Comprehensive Income (Loss) Calculation [Roll Forward]
Beginning balance	$ 7,838	$ 4,949
Unrealized gains on cash flow hedges	7,877	452
Amortization of cash flow hedges	(106)	484
Total accumulated other comprehensive income/(loss)	$ 15,609	$ 5,885

Real Estate and Other Assets 42

Real Estate and Other Assets Held For Sale (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Real Estate and Other Assets Held For Sale [Abstract]
Land	$ 870	$ 870
Buildings and tenant improvements	21,318	21,318
Land held for development	355	355
Less-accumulated depreciation	(9,304)	(9,304)
Net real estate assets	13,239	13,239
Accrued straight-line rents receivable	475	591
Deferred leasing costs, net	255	253
Prepaid expenses and other assets	48	35
Real estate and other assets, net, held for sale	$ 14,017	$ 14,118

Earnings Per Share and Per Un43

Earnings Per Share and Per Unit (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Earnings per Common Share and Per Unit - basic: [Abstract]
Net income	$ 34,246	$ 33,485
Net (income) attributable to noncontrolling interests in the Operating Partnership from continuing operations	(888)	(888)
Net (income) attributable to noncontrolling interests in consolidated affiliates from continuing operations	(286)	(300)
Dividends on Preferred Stock	(623)	(623)
Net income available for common stockholders	$ 32,449	$ 31,674
Denominator:
Denominator for basic earnings per Common Share - weighted average shares (in shares)	103,324	101,738
Earnings per Common Share - basic:
Net income available for common stockholders (in dollars per share)	$ 0.31	$ 0.31
Earnings per Common Share and Per Unit - diluted: [Abstract]
Net income	$ 34,246	$ 33,485
Net (income) attributable to noncontrolling interests in consolidated affiliates	(286)	(300)
Dividends on Preferred Stock	(623)	(623)
Net income available for common stockholders before net (income) attributable to noncontrolling interests in the Operating Partnership	$ 33,337	$ 32,562
Denominator:
Denominator for basic earnings per Common Share - weighted average shares (in shares)	103,324	101,738
Stock options using the treasury method (in shares)	26	85
Noncontrolling interests Common Units (in shares)	2,815	2,838
Denominator for diluted earnings per Common Share - adjusted weighted average shares and assumed conversions (in shares)	106,165	104,661
Earnings per Common Share - diluted:
Net income available for common stockholders (in dollars per share)	$ 0.31	$ 0.31
Highwoods Realty Limited Partnership [Member]
Earnings per Common Share and Per Unit - basic: [Abstract]
Net income	$ 34,246	$ 33,485
Net (income) attributable to noncontrolling interests in consolidated affiliates from continuing operations	(286)	(300)
Distributions on Preferred Units	(623)	(623)
Net income available for common unitholders	$ 33,337	$ 32,562
Denominator:
Denominator for basic earnings per Common Unit - weighted average units (in shares)	105,730	104,167
Earnings per Common Unit - basic:
Net income available for common unitholders (in dollars per share)	$ 0.32	$ 0.31
Earnings per Common Share and Per Unit - diluted: [Abstract]
Net income	$ 34,246	$ 33,485
Net (income) attributable to noncontrolling interests in consolidated affiliates	(286)	(300)
Distributions on Preferred Units	(623)	(623)
Net income available for common unitholders	$ 33,337	$ 32,562
Denominator:
Denominator for basic earnings per Common Unit - weighted average units (in shares)	105,730	104,167
Stock options using the treasury method (in shares)	26	85
Denominator for diluted earnings per Common Unit - adjusted weighted average units and assumed conversions (in shares)	105,756	104,252
Earnings per Common Unit - diluted:
Net income available for common unitholders (in dollars per share)	$ 0.32	$ 0.31

Segment Information (Details)

Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Segment Reporting Information [Line Items]
Total Rental and Other Revenues	$ 180,438	$ 169,408
Total Net Operating Income	121,006	112,012
Reconciliation to income before disposition of investment properties and activity in unconsolidated affiliates:
Depreciation and amortization	(57,568)	(56,145)
General and administrative expenses	(11,778)	(11,490)
Interest expense	(18,391)	(17,863)
Other income	455	684
Income before disposition of investment properties and activity in unconsolidated affiliates	33,724	27,198
Total Office Segment [Member]
Segment Reporting Information [Line Items]
Total Rental and Other Revenues	177,300	166,027
Total Net Operating Income	118,756	109,671
Office Atlanta, GA [Member]
Segment Reporting Information [Line Items]
Total Rental and Other Revenues	35,483	34,209
Total Net Operating Income	22,670	22,006
Office Greensboro, NC [Member]
Segment Reporting Information [Line Items]
Total Rental and Other Revenues	6,026	5,302
Total Net Operating Income	4,011	3,358
Office Memphis, TN [Member]
Segment Reporting Information [Line Items]
Total Rental and Other Revenues	10,208	11,795
Total Net Operating Income	6,645	7,272
Office Nashville, TN [Member]
Segment Reporting Information [Line Items]
Total Rental and Other Revenues	30,723	23,690
Total Net Operating Income	21,983	16,624
Office Orlando, FL [Member]
Segment Reporting Information [Line Items]
Total Rental and Other Revenues	13,300	12,438
Total Net Operating Income	8,263	7,578
Office Pittsburgh, PA [Member]
Segment Reporting Information [Line Items]
Total Rental and Other Revenues	15,282	14,849
Total Net Operating Income	8,971	8,625
Office Raleigh, NC [Member]
Segment Reporting Information [Line Items]
Total Rental and Other Revenues	29,804	29,546
Total Net Operating Income	21,872	21,465
Office Richmond, VA [Member]
Segment Reporting Information [Line Items]
Total Rental and Other Revenues	11,049	10,942
Total Net Operating Income	7,581	7,621
Office Tampa, FL [Member]
Segment Reporting Information [Line Items]
Total Rental and Other Revenues	25,425	23,256
Total Net Operating Income	16,760	15,122
Other [Member]
Segment Reporting Information [Line Items]
Total Rental and Other Revenues	3,138	3,381
Total Net Operating Income	$ 2,250	$ 2,341

Subsequent Events (Details)

Subsequent Events (Details) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended	3 Months Ended
	Apr. 19, 2018	Mar. 31, 2018	Mar. 31, 2017	Apr. 16, 2018
Subsequent Event [Line Items]
Dividends declared per Common Share (in dollars per share)		$ 0.4625	$ 0.440
7.5% Notes Due 2018 [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Principal debt amount				$ 200
Interest rate (in hundredths)				7.50%
Dividend Declared [Member] | Highwoods Properties, Inc. [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Dividends declared per Common Share (in dollars per share)	$ 0.4625