SEGMENT DATA:

We measure segment performance based on operating income (loss). Excluding discontinued operations, our broadcast segment includes stations in 79 markets located throughout the continental United States. The operating results of stations classified as discontinued operations as disclosed in Note 3. Dispositions of Assets and Discontinued Operations are not included in our consolidated results of continuing operations for the year ended December 31, 2013. Other primarily consist of original networks and content, digital and internet solutions, technical services and other non-media investments. All of our businesses included in Other are located within the United States. Corporate costs primarily include our costs to operate as a public company and to operate our corporate headquarters location. Other and Corporate are not reportable segments but are included for reconciliation purposes.

We had approximately $226.2 million and $172.3 million of intercompany loans between broadcast, other and corporate as of December 31, 2015 and 2014, respectively. We had $23.1 million, $20.7 million, and $20.0 million in intercompany interest expense related to intercompany loans between the broadcast, other and corporate for the years ended December 31, 2015, 2014 and 2013, respectively. All other intercompany transactions are immaterial.

Financial information for our operating segments is included in the following tables for the years ended December 31, 2015, 2014 and 2013 (in thousands):



For the year ended December 31, 2015	Broadcast		Other			Corporate			Consolidated
Revenue	$	2,118,021	$	101,115		$	—		$	2,219,136
Depreciation of property and equipment	99,616		2,753			1,064			103,433
Amortization of definite-lived intangible assets and other assets	152,049		9,405			—			161,454
Amortization of program contract costs and net realizable value adjustments	124,619		—			—			124,619
General and administrative overhead expenses	55,848		2,952			5,446			64,246
Research and development	—		12,436			—			12,436
Operating income (loss)	451,015		(21,800		)	(6,479		)	422,736
Interest expense	—		4,955			186,492			191,447
Income from equity and cost method investments	—		964			—			964
Goodwill	1,927,705		3,388			—			1,931,093
Assets	4,838,531		415,278			178,506			5,432,315
Capital expenditures	74,902		8,909			7,610			91,421



For the year ended December 31, 2014	Broadcast		Other			Corporate			Consolidated
Revenue	$	1,904,776	$	71,782		$	—		$	1,976,558
Depreciation of property and equipment	99,823		2,350			1,118			103,291
Amortization of definite-lived intangible assets and other assets	118,654		6,842			—			125,496
Amortization of program contract costs and net realizable value adjustments	106,629		—			—			106,629
General and administrative overhead expenses	55,837		1,315			5,343			62,495
Research and development	—		6,918			—			6,918
Operating income (loss)	511,783		(10,671		)	(6,461		)	494,651
Interest expense	—		4,042			170,820			174,862
Income from equity and cost method investments	—		2,313			—			2,313
Goodwill	1,964,041		512			—			1,964,553
Assets	4,940,870		355,832			113,626			5,410,328
Capital expenditures	78,865		2,593			—			81,458



For the year ended December 31, 2013	Broadcast		Other		Corporate			Consolidated
Revenue	$	1,306,187	$	56,944	$	—		$	1,363,131
Depreciation of property and equipment	67,320		1,891		1,343			70,554
Amortization of definite-lived intangible assets and other assets	65,786		5,034		—			70,820
Amortization of program contract costs and net realizable value adjustments	80,925		—		—			80,925
General and administrative overhead expenses	47,272		1,350		4,504			53,126
Operating income (loss)	329,312		555		(5,847		)	324,020
Interest expense	—		3,251		159,686			162,937
Income from equity and cost method investments	—		621		—			621