SEGMENT, GEOGRAPHIC AND CUSTOMER INFORMATION

We operate as a single reportable segment in manufacturing, marketing, selling and distributing a wide variety of branded and private label dairy and dairy case products. We operate 65 manufacturing facilities which are geographically located largely based on local and regional customer needs and other market factors. We manufacture, market and distribute a wide variety of branded and private label dairy case products, including fluid milk, ice cream, cultured dairy products, creamers, ice cream mix and other dairy products to retailers, distributors, foodservice outlets, educational institutions and governmental entities across the United States. Our products are primarily delivered through what we believe to be one of the most extensive refrigerated direct-to-store delivery systems in the United States.

Approximate net revenue from external customers for each group of similar products for fiscal 2017, 2016, and 2015 consisted of the following:



	Year Ended December 31,
	2017		2016		2015
	(in millions)
Fluid milk	$	5,316	$	5,339	$	5,728
Ice cream(1)	1,108		1,041		965
Fresh cream(2)	389		359		358
Extended shelf life and other dairy products(3)	196		231		250
Cultured	282		299		319
Other beverages(4)	291		308		343
Other(5)	213		133		159
Total	$	7,795	$	7,710	$	8,122


(1)	Includes ice cream, ice cream mix and ice cream novelties.


(2)	Includes half-and-half and whipping creams.


(3)	Includes creamers and other extended shelf life fluids.


(4)	Includes fruit juice, fruit flavored drinks, iced tea and water.


(5)	Includes items for resale such as butter, cheese, eggs and milkshakes.

Our Chief Executive Officer evaluates the performance of our business based on sales and operating income or loss before gains and losses on the sale of businesses, facility closing and reorganization costs, litigation settlements, impairments of long-lived assets and other non-recurring gains and losses.

All results herein have been recast to present results on a comparable basis. These changes had no impact on consolidated net sales and operating income. The amounts in the following tables include our operating results and are obtained from reports used by our executive management team and do not include any allocated income taxes or management fees. There are no significant non-cash items reported in segment profit or loss other than depreciation and amortization.



	Year Ended December 31,
	2017			2016			2015
	(in thousands)
Operating income:
Dean Foods	$	138,843		$	272,387		$	223,115
Facility closing and reorganization costs, net	(24,913		)	(8,719		)	(19,844		)
Impairment of intangible and long-lived assets	(30,668		)	—			(109,910		)
Total	83,262			263,668			93,361
Other (income) expense:
Interest expense	64,961			66,795			66,813
Loss on early retirement of debt	—			—			43,609
Other income, net	(2,942		)	(5,778		)	(3,751		)
Consolidated income (loss) from continuing operations before income taxes	$	21,243		$	202,651		$	(13,310	)

Geographic Information — Net sales related to our foreign operations comprised less than 1% of our consolidated net sales during the years ended December 31, 2017, 2016 and 2015. None of our long-lived assets are associated with our foreign operations.

Significant Customers — Our largest customer accounted for approximately 17.5%, 16.7%, and 16.4% of our consolidated net sales in 2017, 2016 and 2015, respectively.