Mortgages and Notes Payable (Details) (USD $)	12 Months Ended								12 Months Ended								12 Months Ended			12 Months Ended							3 Months Ended	12 Months Ended																																																					12 Months Ended						12 Months Ended								12 Months Ended			12 Months Ended							3 Months Ended	12 Months Ended
	Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2010	Dec. 31, 2012 7.05% Mortgage Loan due 2012 [Member]	Dec. 31, 2012 5.45% (5.12% effective rate) Mortgage Loan due 2014 [Member]	Dec. 31, 2012 5.18%(4.22% effective rate) Mortgage Loan due 2017 [Member]	Dec. 31, 2012 6.03% Mortgage Loan due 2013 [Member]	Dec. 31, 2012 Consolidated Affiliate 6.06% Mortgage Loan due 2012 [Member]	Dec. 31, 2012 5.17% (6.43% effective rate) Mortage Loan due 2015 [Member]	Dec. 31, 2012 5.74% to 9.00% Mortgage Loans due between 2012 and 2016 [Member]	Dec. 31, 2011 5.74% to 9.00% Mortgage Loans due between 2012 and 2016 [Member]	Dec. 31, 2011 SF-Harborview Plaza, LP Joint Venture [Member]	Dec. 31, 2012 Highwoods-Markel Associates, LLC Joint Venture [Member]	Dec. 31, 2011 Highwoods-Markel Associates, LLC Joint Venture [Member]	Dec. 31, 2012 Variable Rate Construction Loan due 2012 [Member]	Dec. 31, 2012 5.85% (5.88% effective rate) Notes due 2017 [Member]	Dec. 31, 2011 5.85% (5.88% effective rate) Notes due 2017 [Member]	Dec. 31, 2012 3.625% (3.752% Effective Rate) Notes Due 2023 [Member]	Dec. 31, 2012 Variable Rate Term Loan due 2016 [Member] participants	Dec. 31, 2011 Variable Rate Term Loan due 2016 [Member]	Dec. 31, 2012 Variable Rate Term Loan due 2018 [Member] participants	Dec. 31, 2012 Variable Rate Term Loan due 2019 [Member]	Dec. 31, 2012 Revolving Credit Facility due 2015 [Member]	Feb. 01, 2013 Revolving Credit Facility due 2015 [Member]	Dec. 31, 2010 Variable Rate Term Loans due 2011 [Member]	Dec. 31, 2011 Variable Rate Term Loans due 2011 [Member]	Dec. 31, 2010 Variable Rate Term Loans due 2011 [Member]	Dec. 31, 2010 Secured Mortgage Payable [Member] properties	Dec. 31, 2012 Secured indebtedness [Member]		Dec. 31, 2011 Secured indebtedness [Member]		Dec. 31, 2012 Secured indebtedness [Member] 5.45% (5.12% effective rate) Mortgage Loan due 2014 [Member]		Dec. 31, 2011 Secured indebtedness [Member] 5.45% (5.12% effective rate) Mortgage Loan due 2014 [Member]	Dec. 31, 2012 Secured indebtedness [Member] 5.18%(4.22% effective rate) Mortgage Loan due 2017 [Member]		Dec. 31, 2011 Secured indebtedness [Member] 5.18%(4.22% effective rate) Mortgage Loan due 2017 [Member]	Dec. 31, 2012 Secured indebtedness [Member] 6.03% Mortgage Loan due 2013 [Member]	Dec. 31, 2011 Secured indebtedness [Member] 6.03% Mortgage Loan due 2013 [Member]	Dec. 31, 2012 Secured indebtedness [Member] 5.68% Mortgage Loan due 2013 [Member]	Dec. 31, 2011 Secured indebtedness [Member] 5.68% Mortgage Loan due 2013 [Member]	Dec. 31, 2012 Secured indebtedness [Member] 5.17% (6.43% effective rate) Mortage Loan due 2015 [Member]		Dec. 31, 2011 Secured indebtedness [Member] 5.17% (6.43% effective rate) Mortage Loan due 2015 [Member]	Dec. 31, 2012 Secured indebtedness [Member] 6.88% Mortgage Loan due 2016 [Member]	Dec. 31, 2011 Secured indebtedness [Member] 6.88% Mortgage Loan due 2016 [Member]	Dec. 31, 2012 Secured indebtedness [Member] 7.50% Mortgage Loan due 2016 [Member]	Dec. 31, 2011 Secured indebtedness [Member] 7.50% Mortgage Loan due 2016 [Member]	Dec. 31, 2012 Secured indebtedness [Member] 5.74% to 9.00% Mortgage Loans due between 2012 and 2016 [Member]		Dec. 31, 2011 Secured indebtedness [Member] 5.74% to 9.00% Mortgage Loans due between 2012 and 2016 [Member]		Dec. 31, 2012 Secured indebtedness [Member] Variable Rate Construction Loan due 2012 [Member]	Dec. 31, 2011 Secured indebtedness [Member] Variable Rate Construction Loan due 2012 [Member]	Dec. 31, 2012 Unsecured indebtedness [Member]	Dec. 31, 2011 Unsecured indebtedness [Member]	Dec. 31, 2012 Unsecured indebtedness [Member] 5.85% (5.88% effective rate) Notes due 2017 [Member]		Dec. 31, 2011 Unsecured indebtedness [Member] 5.85% (5.88% effective rate) Notes due 2017 [Member]		Dec. 31, 2012 Unsecured indebtedness [Member] 7.50% Notes due 2018 [Member]	Dec. 31, 2011 Unsecured indebtedness [Member] 7.50% Notes due 2018 [Member]	Dec. 31, 2012 Unsecured indebtedness [Member] 3.625% (3.752% Effective Rate) Notes Due 2023 [Member]		Dec. 31, 2011 Unsecured indebtedness [Member] 3.625% (3.752% Effective Rate) Notes Due 2023 [Member]	Dec. 31, 2012 Unsecured indebtedness [Member] Variable Rate Term Loan due 2016 [Member]		Dec. 31, 2011 Unsecured indebtedness [Member] Variable Rate Term Loan due 2016 [Member]	Dec. 31, 2012 Unsecured indebtedness [Member] Variable Rate Term Loan due 2018 [Member]		Dec. 31, 2011 Unsecured indebtedness [Member] Variable Rate Term Loan due 2018 [Member]	Dec. 31, 2012 Unsecured indebtedness [Member] Variable Rate Term Loan due 2019 [Member]		Dec. 31, 2011 Unsecured indebtedness [Member] Variable Rate Term Loan due 2019 [Member]	Dec. 31, 2012 Unsecured indebtedness [Member] Revolving Credit Facility due 2015 [Member]		Dec. 31, 2011 Unsecured indebtedness [Member] Revolving Credit Facility due 2015 [Member]	Dec. 31, 2012 Highwoods Realty Limited Partnership [Member]	Dec. 31, 2011 Highwoods Realty Limited Partnership [Member]	Dec. 31, 2010 Highwoods Realty Limited Partnership [Member]	Dec. 31, 2012 Highwoods Realty Limited Partnership [Member] 7.05% Mortgage Loan due 2012 [Member]	Dec. 31, 2012 Highwoods Realty Limited Partnership [Member] 5.45% (5.12% effective rate) Mortgage Loan due 2014 [Member]	Dec. 31, 2012 Highwoods Realty Limited Partnership [Member] 5.18%(4.22% effective rate) Mortgage Loan due 2017 [Member]	Dec. 31, 2012 Highwoods Realty Limited Partnership [Member] 6.03% Mortgage Loan due 2013 [Member]	Dec. 31, 2012 Highwoods Realty Limited Partnership [Member] Consolidated Affiliate 6.06% Mortgage Loan due 2012 [Member]	Dec. 31, 2012 Highwoods Realty Limited Partnership [Member] 5.17% (6.43% effective rate) Mortage Loan due 2015 [Member]	Dec. 31, 2012 Highwoods Realty Limited Partnership [Member] 5.74% to 9.00% Mortgage Loans due between 2012 and 2016 [Member]	Dec. 31, 2011 Highwoods Realty Limited Partnership [Member] 5.74% to 9.00% Mortgage Loans due between 2012 and 2016 [Member]	Dec. 31, 2011 Highwoods Realty Limited Partnership [Member] SF-Harborview Plaza, LP Joint Venture [Member]	Dec. 31, 2012 Highwoods Realty Limited Partnership [Member] Highwoods-Markel Associates, LLC Joint Venture [Member]	Dec. 31, 2011 Highwoods Realty Limited Partnership [Member] Highwoods-Markel Associates, LLC Joint Venture [Member]	Dec. 31, 2012 Highwoods Realty Limited Partnership [Member] Variable Rate Construction Loan due 2012 [Member]	Dec. 31, 2012 Highwoods Realty Limited Partnership [Member] 5.85% (5.88% effective rate) Notes due 2017 [Member]	Dec. 31, 2011 Highwoods Realty Limited Partnership [Member] 5.85% (5.88% effective rate) Notes due 2017 [Member]	Dec. 31, 2012 Highwoods Realty Limited Partnership [Member] 3.625% (3.752% Effective Rate) Notes Due 2023 [Member]	Dec. 31, 2012 Highwoods Realty Limited Partnership [Member] Variable Rate Term Loan due 2016 [Member] participants	Dec. 31, 2011 Highwoods Realty Limited Partnership [Member] Variable Rate Term Loan due 2016 [Member]	Dec. 31, 2012 Highwoods Realty Limited Partnership [Member] Variable Rate Term Loan due 2018 [Member] participants	Dec. 31, 2012 Highwoods Realty Limited Partnership [Member] Variable Rate Term Loan due 2019 [Member]	Dec. 31, 2012 Highwoods Realty Limited Partnership [Member] Revolving Credit Facility due 2015 [Member]	Feb. 01, 2013 Highwoods Realty Limited Partnership [Member] Revolving Credit Facility due 2015 [Member]	Dec. 31, 2010 Highwoods Realty Limited Partnership [Member] Variable Rate Term Loans due 2011 [Member]	Dec. 31, 2011 Highwoods Realty Limited Partnership [Member] Variable Rate Term Loans due 2011 [Member]	Dec. 31, 2010 Highwoods Realty Limited Partnership [Member] Variable Rate Term Loans due 2011 [Member]	Dec. 31, 2010 Highwoods Realty Limited Partnership [Member] Secured Mortgage Payable [Member] properties	Dec. 31, 2012 Highwoods Realty Limited Partnership [Member] Secured indebtedness [Member]		Dec. 31, 2011 Highwoods Realty Limited Partnership [Member] Secured indebtedness [Member]		Dec. 31, 2012 Highwoods Realty Limited Partnership [Member] Secured indebtedness [Member] 5.45% (5.12% effective rate) Mortgage Loan due 2014 [Member]		Dec. 31, 2011 Highwoods Realty Limited Partnership [Member] Secured indebtedness [Member] 5.45% (5.12% effective rate) Mortgage Loan due 2014 [Member]	Dec. 31, 2012 Highwoods Realty Limited Partnership [Member] Secured indebtedness [Member] 5.18%(4.22% effective rate) Mortgage Loan due 2017 [Member]		Dec. 31, 2011 Highwoods Realty Limited Partnership [Member] Secured indebtedness [Member] 5.18%(4.22% effective rate) Mortgage Loan due 2017 [Member]	Dec. 31, 2012 Highwoods Realty Limited Partnership [Member] Secured indebtedness [Member] 6.03% Mortgage Loan due 2013 [Member]	Dec. 31, 2011 Highwoods Realty Limited Partnership [Member] Secured indebtedness [Member] 6.03% Mortgage Loan due 2013 [Member]	Dec. 31, 2012 Highwoods Realty Limited Partnership [Member] Secured indebtedness [Member] 5.68% Mortgage Loan due 2013 [Member]	Dec. 31, 2011 Highwoods Realty Limited Partnership [Member] Secured indebtedness [Member] 5.68% Mortgage Loan due 2013 [Member]	Dec. 31, 2012 Highwoods Realty Limited Partnership [Member] Secured indebtedness [Member] 5.17% (6.43% effective rate) Mortage Loan due 2015 [Member]		Dec. 31, 2011 Highwoods Realty Limited Partnership [Member] Secured indebtedness [Member] 5.17% (6.43% effective rate) Mortage Loan due 2015 [Member]	Dec. 31, 2012 Highwoods Realty Limited Partnership [Member] Secured indebtedness [Member] 6.88% Mortgage Loan due 2016 [Member]	Dec. 31, 2011 Highwoods Realty Limited Partnership [Member] Secured indebtedness [Member] 6.88% Mortgage Loan due 2016 [Member]	Dec. 31, 2012 Highwoods Realty Limited Partnership [Member] Secured indebtedness [Member] 7.50% Mortgage Loan due 2016 [Member]	Dec. 31, 2011 Highwoods Realty Limited Partnership [Member] Secured indebtedness [Member] 7.50% Mortgage Loan due 2016 [Member]	Dec. 31, 2012 Highwoods Realty Limited Partnership [Member] Secured indebtedness [Member] 5.74% to 9.00% Mortgage Loans due between 2012 and 2016 [Member]		Dec. 31, 2011 Highwoods Realty Limited Partnership [Member] Secured indebtedness [Member] 5.74% to 9.00% Mortgage Loans due between 2012 and 2016 [Member]		Dec. 31, 2012 Highwoods Realty Limited Partnership [Member] Secured indebtedness [Member] Variable Rate Construction Loan due 2012 [Member]	Dec. 31, 2011 Highwoods Realty Limited Partnership [Member] Secured indebtedness [Member] Variable Rate Construction Loan due 2012 [Member]	Dec. 31, 2012 Highwoods Realty Limited Partnership [Member] Unsecured indebtedness [Member]	Dec. 31, 2011 Highwoods Realty Limited Partnership [Member] Unsecured indebtedness [Member]	Dec. 31, 2012 Highwoods Realty Limited Partnership [Member] Unsecured indebtedness [Member] 5.85% (5.88% effective rate) Notes due 2017 [Member]		Dec. 31, 2011 Highwoods Realty Limited Partnership [Member] Unsecured indebtedness [Member] 5.85% (5.88% effective rate) Notes due 2017 [Member]		Dec. 31, 2012 Highwoods Realty Limited Partnership [Member] Unsecured indebtedness [Member] 7.50% Notes due 2018 [Member]	Dec. 31, 2011 Highwoods Realty Limited Partnership [Member] Unsecured indebtedness [Member] 7.50% Notes due 2018 [Member]	Dec. 31, 2012 Highwoods Realty Limited Partnership [Member] Unsecured indebtedness [Member] 3.625% (3.752% Effective Rate) Notes Due 2023 [Member]		Dec. 31, 2011 Highwoods Realty Limited Partnership [Member] Unsecured indebtedness [Member] 3.625% (3.752% Effective Rate) Notes Due 2023 [Member]	Dec. 31, 2012 Highwoods Realty Limited Partnership [Member] Unsecured indebtedness [Member] Variable Rate Term Loan due 2016 [Member]		Dec. 31, 2011 Highwoods Realty Limited Partnership [Member] Unsecured indebtedness [Member] Variable Rate Term Loan due 2016 [Member]	Dec. 31, 2012 Highwoods Realty Limited Partnership [Member] Unsecured indebtedness [Member] Variable Rate Term Loan due 2018 [Member]		Dec. 31, 2011 Highwoods Realty Limited Partnership [Member] Unsecured indebtedness [Member] Variable Rate Term Loan due 2018 [Member]	Dec. 31, 2012 Highwoods Realty Limited Partnership [Member] Unsecured indebtedness [Member] Variable Rate Term Loan due 2019 [Member]		Dec. 31, 2011 Highwoods Realty Limited Partnership [Member] Unsecured indebtedness [Member] Variable Rate Term Loan due 2019 [Member]	Dec. 31, 2012 Highwoods Realty Limited Partnership [Member] Unsecured indebtedness [Member] Revolving Credit Facility due 2015 [Member]		Dec. 31, 2011 Highwoods Realty Limited Partnership [Member] Unsecured indebtedness [Member] Revolving Credit Facility due 2015 [Member]
Debt Instrument [Line Items]
Mortgages and notes payable	$ 1,859,162,000		$ 1,868,906,000																												$ 549,607,000	[1]	$ 715,742,000	[1]	$ 67,604,000	[2]	$ 67,809,000	$ 120,924,000	[3]	$ 123,613,000	$ 0	$ 125,264,000	$ 107,289,000	$ 110,343,000	$ 39,805,000	[4]	$ 40,015,000	$ 110,671,000	$ 112,075,000	$ 45,662,000	$ 46,181,000	$ 57,652,000	[5],[6]	$ 72,640,000	[5],[6],[7]	$ 0	$ 17,802,000	$ 1,309,555,000	$ 1,153,164,000	$ 379,194,000	[8]	$ 391,164,000	[8]	$ 200,000,000	$ 200,000,000	$ 247,361,000	[9]	$ 0	$ 35,000,000	[10]	$ 200,000,000	$ 200,000,000	[11]	$ 0	$ 225,000,000	[12]	$ 0	$ 23,000,000	[13]	$ 362,000,000	$ 1,859,162,000	$ 1,868,906,000																											$ 549,607,000	[1]	$ 715,742,000	[1]	$ 67,604,000	[2]	$ 67,809,000	$ 120,924,000	[3]	$ 123,613,000	$ 0	$ 125,264,000	$ 107,289,000	$ 110,343,000	$ 39,805,000	[4]	$ 40,015,000	$ 110,671,000	$ 112,075,000	$ 45,662,000	$ 46,181,000	$ 57,652,000	[5],[6],[7]	$ 72,640,000	[5],[6]	$ 0	$ 17,802,000	$ 1,309,555,000	$ 1,153,164,000	$ 379,194,000	[8]	$ 391,164,000	[8]	$ 200,000,000	$ 200,000,000	$ 247,361,000	[9]	$ 0	$ 35,000,000	[10]	$ 200,000,000	$ 200,000,000	[11]	$ 0	$ 225,000,000	[12]	$ 0	$ 23,000,000	[13]	$ 362,000,000
Scheduled future principal payments [Abstract]
2013	123,537,000																																																																																123,537,000
2014	112,283,000																																																																																112,283,000
2015	67,733,000																																																																																67,733,000
2016	193,217,000																																																																																193,217,000
2017	488,617,000																																																																																488,617,000
Thereafter	873,775,000																																																																																873,775,000
Total scheduled future principal payments	1,859,162,000		1,868,906,000																												549,607,000	[1]	715,742,000	[1]	67,604,000	[2]	67,809,000	120,924,000	[3]	123,613,000	0	125,264,000	107,289,000	110,343,000	39,805,000	[4]	40,015,000	110,671,000	112,075,000	45,662,000	46,181,000	57,652,000	[5],[6]	72,640,000	[5],[6],[7]	0	17,802,000	1,309,555,000	1,153,164,000	379,194,000	[8]	391,164,000	[8]	200,000,000	200,000,000	247,361,000	[9]	0	35,000,000	[10]	200,000,000	200,000,000	[11]	0	225,000,000	[12]	0	23,000,000	[13]	362,000,000	1,859,162,000	1,868,906,000																											549,607,000	[1]	715,742,000	[1]	67,604,000	[2]	67,809,000	120,924,000	[3]	123,613,000	0	125,264,000	107,289,000	110,343,000	39,805,000	[4]	40,015,000	110,671,000	112,075,000	45,662,000	46,181,000	57,652,000	[5],[6],[7]	72,640,000	[5],[6]	0	17,802,000	1,309,555,000	1,153,164,000	379,194,000	[8]	391,164,000	[8]	200,000,000	200,000,000	247,361,000	[9]	0	35,000,000	[10]	200,000,000	200,000,000	[11]	0	225,000,000	[12]	0	23,000,000	[13]	362,000,000
Aggregate undepreciated book value of secured real estate assets																															1,000,000,000																																																																														1,000,000,000
Unamortized premium							200,000	4,600,000				500,000	300,000																																																																								200,000	4,600,000				500,000	300,000
Unamortized discount											1,200,000							500,000	600,000	2,600,000																																																																					1,200,000							500,000	600,000	2,600,000
Mortgage debt related to consolidated affiliate	370,393,000	[14]	406,875,000	[14]										21,000,000	33,100,000	34,000,000																																																																	360,944,000	396,977,000										21,000,000	33,100,000	34,000,000
Maximum borrowing capacity on revolving credit facility																									475,000,000																																																																														475,000,000
Maturity date on revolving credit facility																									Jun. 27, 2015																																																																														Jun. 27, 2015
Additional borrowing capacity on revolving credit facility																									75,000,000																																																																														75,000,000
Interest rate																									LIBOR plus 150 basis points																																																																														LIBOR plus 150 basis points
Annual facility fee (in hundredths)																									0.35%																																																																														0.35%
Amount outstanding on revolving credit facility																									23,000,000	25,000,000																																																																													23,000,000	25,000,000
Outstanding letters of credit on revolving credit facility																									100,000	100,000																																																																													100,000	100,000
Unused borrowing capacity on revolving credit facility																									451,900,000	449,900,000																																																																													451,900,000	449,900,000
Repayment of loans at maturity																	52,100,000																																																																														52,100,000
Early repayment of debt						184,200,000			123,000,000																		10,000,000	10,000,000		5,800,000																																																						184,200,000			123,000,000																		10,000,000	10,000,000		5,800,000
Principal amount of debt										20,800,000										250,000,000		200,000,000	200,000,000	225,000,000			20,000,000		20,000,000																																																											20,800,000										250,000,000		200,000,000	200,000,000	225,000,000			20,000,000		20,000,000
Term of debt instrument (in years)																						5 years		7 years				3 years	3 years																																																																							5 years		7 years				3 years	3 years
Scheduled maturity date						Jan. 01, 2012			Mar. 01, 2013	Oct. 01, 2012								Mar. 15, 2017		Jan. 15, 2023		Feb. 01, 2016	Jan. 01, 2018					Feb. 01, 2012																																																								Jan. 01, 2012			Mar. 01, 2013	Oct. 01, 2012								Mar. 15, 2017		Jan. 15, 2023		Feb. 01, 2016	Jan. 01, 2018					Feb. 01, 2012
Interest rate basis																						LIBOR plus basis points	LIBOR plus basis points	LIBOR plus basis points																																																																												LIBOR plus basis points	LIBOR plus basis points	LIBOR plus basis points
Interest rate, basis spread						7.05%			6.03%	6.06%							1.07%	5.85%		3.625%		2.20%	1.65%	1.90%				3.90%																																																								7.05%			6.03%	6.06%							1.07%	5.85%				2.20%	1.65%	1.90%				3.90%
Current interest rate (in hundredths)																					2.42%		1.87%	3.58%	1.71%																																																																										2.42%		1.87%	3.58%	1.71%
Gross book value of unencumbered real estate assets	193,000,000																																																																																193,000,000
Annual repayments through principal amortization	12,200,000																																																																																12,200,000
Purchase price of debt (in hundredths)																		107.50%		98.94%																																																																												107.50%		98.94%
Effective percentage rate (in hundredths)																				3.752%																																																																														3.752%
Original issuance discount																				2,700,000																																																																														2,700,000
Deferred financing fees																				2,100,000			900,000																																																																											2,100,000			900,000
Number of participant changes																					2		2																																																																												2		2
Aggregate amount related to change in participants																					35,000,000		35,000,000																																																																												35,000,000		35,000,000
Date of early debt repayment for participant changes																					Feb. 25, 2013																																																																														Feb. 25, 2013
Principal amount of repurchased debt																		12,100,000																																																																														12,100,000
Penalty incurred on early repayment of debt	(973,000)		(24,000)		(705,000)													1,000,000												600,000																																																			(973,000)	(24,000)	(705,000)													1,000,000												600,000
Rental residential units securing mortgage payable																														96																																																																														96
Lender covenant compliance to accelerate outstanding borrowings	66.70%																																																																																66.70%
Holders covenant compliance of bonds	25.00%																																																																																25.00%
Uncured covenant compliance default period	60 days																																																																																60 days
Capitalized Interest [Abstract]
Capitalized Interest	$ 1,000,000		$ 600,000		$ 1,400,000																																																																												$ 1,000,000	$ 600,000	$ 1,400,000

[1] The secured mortgage loans payable are collateralized by real estate assets with an aggregate undepreciated book value of $966.9 million at December 31, 2012. Our fixed rate mortgage loans generally are either locked out to prepayment for all or a portion of their term or are prepayable subject to certain conditions including prepayment penalties.

[2] Includes unamortized fair market premium of $0.2 million as of December 31, 2012.

[3] Includes unamortized fair market premium of $4.6 million as of December 31, 2012.

[4] Net of unamortized fair market value discount of $1.2 million as of December 31, 2012.

[5] Net of unamortized fair market value premium of $0.5 million and $0.3 million at December 31, 2012 and 2011, respectively.

[6] Includes mortgage debt related to Markel, a consolidated 50.0% owned joint venture, of $33.1 million and $34.0 million at December 31, 2012 and 2011, respectively. See Note 10.

[7] Includes mortgage debt related to Harborview, a consolidated 20.0% owned joint venture, of $21.0 million at December 31, 2011. See Note 8.

[8] Net of unamortized original issuance discount of $0.5 million and $0.6 million at December 31, 2012 and 2011, respectively.

[9] Net of unamortized original issuance discount of $2.6 million at December 31, 2012.

[10] The interest rate is 2.42% at December 31, 2012.

[11] The interest rate is 1.87% at December 31, 2012.

[12] As more fully described in Note 7, we entered into floating-to-fixed interest rate swaps that effectively fix LIBOR for the full amount and duration of this loan. Accordingly, the equivalent fixed rate of this loan is 3.58%.

[13] The interest rate is 1.71% at December 31, 2012.

[14] Our share of scheduled future principal payments, including amortization, due on mortgages and notes payable at December 31, 2012 is as follows:2013$23,458201457,163201521,82120161,054201726,452Thereafter7,313 $137,261All of this joint venture debt is non-recourse to us except in the case of customary exceptions pertaining to such matters as misuse of funds, environmental conditions and material misrepresentations.