REPORTABLE SEGMENTS

The Company's segments are based on the method of internal reporting which classifies operations by property type and geographical area. The segments by property type are: Office and Mixed-Use. The segments by geographical region are: Atlanta, Charlotte, Austin, Phoenix, Tampa, Orlando, Houston, and Other. In 2016, the Company disposed of its Houston properties as part of the Spin-Off. In 2017, the Company sold its Orlando Properties. These reportable segments represent an aggregation of operating segments reported to the Chief Operating Decision Maker based on similar economic characteristics that include the type of product and the geographical location. Each segment includes both consolidated operations and the Company's share of joint venture operations.

Company management evaluates the performance of its reportable segments in part based on net operating income (“NOI”). NOI represents rental property revenues less rental property operating expenses. NOI is not a measure of cash flows or operating results as measured by GAAP, is not indicative of cash available to fund cash needs and should not be considered an alternative to cash flows as a measure of liquidity. All companies may not calculate NOI in the same manner. The Company considers NOI to be an appropriate supplemental measure to net income as it helps both management and investors understand the core operations of the Company's operating assets. NOI excludes corporate general and administrative expenses, interest expense, depreciation and amortization, impairments, gains/loss on sales of real estate, and other non-operating items.

Segment net income, amount of capital expenditures, and total assets are not presented in the following tables because management does not utilize these measures when analyzing its segments or when making resource allocation decisions. Information on the Company's segments along with a reconciliation of NOI to net income available to common stockholders is as follows (in thousands):



Year ended December 31, 2018	Office		Mixed-Use		Total
Net Operating Income:
Atlanta	$	131,564	$	—	$	131,564
Charlotte	62,812		—		62,812
Austin	60,474		—		60,474
Phoenix	36,875		—		36,875
Tampa	30,514		—		30,514
Other	1,581		2,243		3,824
Total Net Operating Income	$	323,820	$	2,243	$	326,063



Year ended December 31, 2017	Office		Mixed-Use		Total
Net Operating Income:
Atlanta	$	109,706	$	3,278	$	112,984
Charlotte	62,708		—		62,708
Austin	58,648		—		58,648
Phoenix	34,074		—		34,074
Tampa	29,426		—		29,426
Orlando	13,029		—		13,029
Other	1,632		705		2,337
Total Net Operating Income	$	309,223	$	3,983	$	313,206



Year ended December 31, 2016	Office		Mixed-Use		Total
Net Operating Income:
Atlanta	$	98,032	$	7,411	$	105,443
Houston	78,590		—		78,590
Austin	29,865		—		29,865
Charlotte	28,418		—		28,418
Tampa	7,130		—		7,130
Phoenix	6,067		—		6,067
Orlando	3,265		—		3,265
Other	1,504		—		1,504
Total Net Operating Income	$	252,871	$	7,411	$	260,282

The following reconciles Net Income to Net Operating Income for each of the periods presented (in thousands):



	Year Ended December 31,
	2018			2017			2016
Net income	$	80,765		$	219,959		$	80,104
Net operating income from unconsolidated joint ventures	28,888			31,053			28,785
Net operating income from discontinued operations	—			—			78,591
Fee income	(10,089		)	(8,632		)	(8,347		)
Other income	(3,270		)	(11,518		)	(1,050		)
Reimbursed expenses	3,782			3,527			3,259
General and administrative expenses	22,040			27,523			25,592
Interest expense	39,430			33,524			26,650
Depreciation and amortization	181,382			196,745			97,948
Acquisition and transaction costs	248			1,661			24,521
Other expenses	556			1,796			5,888
(Gain) loss on extinguishment of debt	(8		)	(2,258		)	5,180
Income from unconsolidated joint ventures	(12,224		)	(47,115		)	(10,562		)
Gain on sale of investment properties	(5,437		)	(133,059		)	(77,114		)
Income from discontinued operations	—			—			(19,163		)
Net Operating Income	$	326,063		$	313,206		$	260,282

Revenues by reportable segment, including a reconciliation to total revenues on the consolidated statements of operations for years ended December 31, 2018, 2017, and 2016 are as follows (in thousands):



Year ended December 31, 2018	Office			Mixed-Use			Total
Revenues:
Atlanta	$	206,129		$	—		$	206,129
Austin	104,329			—			104,329
Charlotte	92,454			—			92,454
Phoenix	50,696			—			50,696
Tampa	49,812			—			49,812
Other	2,206			3,724			5,930
Total segment revenues	505,626			3,724			509,350
Less: Company's share of rental property revenues from unconsolidated joint ventures	(43,773		)	(3,724		)	(47,497		)
Total rental property revenues	$	461,853		$	—		$	461,853



Year ended December 31, 2017	Office			Mixed-Use			Total
Revenues:
Atlanta	$	176,190		$	5,237		$	181,427
Austin	100,939			—			100,939
Charlotte	91,434			—			91,434
Tampa	47,402			—			47,402
Phoenix	46,186			—			46,186
Orlando	24,862			—			24,862
Other	3,021			999			4,020
Total segment revenues	490,034			6,236			496,270
Less: Company's share of rental property revenues from unconsolidated joint ventures	(43,999		)	(6,236		)	(50,235		)
Total rental property revenues	$	446,035		$	—		$	446,035



Year ended December 31, 2016	Office			Mixed-Use			Total
Revenues:
Atlanta	$	160,540		$	13,043		$	173,583
Houston	136,926			—			136,926
Austin	52,769			—			52,769
Charlotte	39,448			—			39,448
Tampa	10,994			—			10,994
Phoenix	8,902			—			8,902
Orlando	5,896			—			5,896
Other	2,443			—			2,443
Total segment revenues	417,918			13,043			430,961
Less: Company's share of rental property revenues from unconsolidated joint ventures	(31,177		)	(13,043		)	(44,220		)
Less: Revenues included in discontinued operations	(136,927		)	—			(136,927		)
Total rental property revenues	$	249,814		$	—		$	249,814