(8)	SEGMENT DATA

The Company’s operations are aggregated into two reportable business segments as follows:

Marine Transportation — Provides marine transportation principally by United States flag vessels of liquid cargoes throughout the United States inland waterway system, along all three United States coasts, in Alaska and Hawaii and, to a lesser extent, in United States coastal transportation of dry-bulk cargoes. The principal products transported include petrochemicals, black oil, refined petroleum products and agricultural chemicals.

Diesel Engine Services — Provides after-market services for medium-speed and high-speed diesel engines, reduction gears and ancillary products for marine and power generation applications, distributes and services high-speed diesel engines, transmissions and pumps, and manufactures and remanufactures oilfield service equipment, including pressure pumping units, for the land-based oilfield service and oil and gas operator and producer markets.

The Company’s two reportable business segments are managed separately based on fundamental differences in their operations. The Company evaluates the performance of its segments based on the contributions to operating income of the respective segments, before income taxes, interest, gains or losses on disposition of assets, other nonoperating income, noncontrolling interests, accounting changes, and nonrecurring items. Intersegment revenues, based on market-based pricing, of the diesel engine services segment from the marine transportation segment of $7,171,000 and $17,722,000 for the three months and nine months ending September 30, 2016, respectively, and $7,032,000 and $20,322,000 for the three months and nine months ending September 30, 2015, respectively, have been eliminated from the tables below. The related intersegment profit of $717,000 and $1,772,000 for the three months and nine months ending September 30, 2016, respectively, and $703,000 and $2,032,000 for the three months and nine months ending September 30, 2015, respectively, have also been eliminated from the tables below.

The following table sets forth the Company’s revenues and profit or loss by reportable segment for the three months and nine months ended September 30, 2016 and 2015 and total assets as of September 30, 2016 and December 31, 2015 (in thousands):

	Three months ended September 30,						Nine months ended September 30,
	2016			2015			2016			2015
Revenues:
Marine transportation	$	359,031		$	418,343		$	1,115,677		$	1,263,301
Diesel engine services		75,677			114,222			219,346			400,093
	$	434,708		$	532,565		$	1,335,023		$	1,663,394
Segment profit (loss):
Marine transportation	$	55,460		$	93,650		$	197,981		$	286,930
Diesel engine services		4,634			5,611			1,860			19,385
Other		(8,535	)		(8,638	)		(24,465	)		(24,718	)
	$	51,559		$	90,623		$	175,376		$	281,597

	September 30, 2016		December 31, 2015
Total assets:
Marine transportation	$	3,571,510	$	3,451,553
Diesel engine services		592,354		637,549
Other		59,963		63,179
	$	4,223,827	$	4,152,281

The following table presents the details of “Other” segment loss for the three months and nine months ended September 30, 2016 and 2015 (in thousands):

	Three months ended September 30,						Nine months ended September 30,
	2016			2015			2016			2015

General corporate expenses	$	(3,786	)	$	(3,811	)	$	(11,485	)	$	(11,285	)
Gain (loss) on disposition of assets		(122	)		(400	)		39			1,246
Interest expense		(4,507	)		(4,449	)		(13,213	)		(14,458	)
Other income (expense)		(120	)		22			194			(221	)
	$	(8,535	)	$	(8,638	)	$	(24,465	)	$	(24,718	)

The following table presents the details of “Other” total assets as of September 30, 2016 and December 31, 2015 (in thousands):

	September 30, 2016		December 31, 2015
General corporate assets	$	57,453	$	61,089
Investment in affiliates		2,510		2,090
	$	59.963	$	63,179