Operating Segments and Related Information (Tables)

12 Months Ended

Dec. 31, 2017

Operating segment information is as follows (in thousands):



	Year Ended December 31,
	2017			2016			2015
Revenue—External Customers:
Surveillance	$	545,755		$	532,476		$	503,045
Instruments	357,834			336,141			347,476
Security	231,456			240,010			226,575
OEM & Emerging Markets	347,160			243,678			186,722
Maritime	189,694			185,726			177,948
Detection	128,535			124,136			115,301
	$	1,800,434		$	1,662,167		$	1,557,067
Revenue—Intersegments:
Surveillance	$	14,074		$	18,835		$	10,761
Instruments	4,686			4,343			9,951
Security	15,845			13,838			12,033
OEM & Emerging Markets	42,985			33,442			33,059
Maritime	2,440			3,450			2,108
Detection	145			31			—
Eliminations	(80,175		)	(73,939		)	(67,912		)
	$	—		$	—		$	—
Segment operating income:
Surveillance	$	151,983		$	151,516		$	149,560
Instruments	106,887			98,775			115,115
Security	13,760			15,885			29,366
OEM & Emerging Markets	103,334			66,141			43,660
Maritime	23,019			18,564			17,383
Detection	36,146			35,276			30,262
	$	435,129		$	386,157		$	385,346


Note 17.	Operating Segments and Related Information - (Continued)

Operating Segments - (Continued)

A reconciliation of the Company's consolidated segment operating income to consolidated earnings before income taxes is as follows (in thousands):



	Year Ended December 31,
	2017			2016			2015
Consolidated segment operating income	$	435,129		$	386,157		$	385,346
Unallocated corporate expenses	(87,184		)	(65,012		)	(61,946		)
Amortization of purchased intangible assets	(27,391		)	(18,266		)	(16,275		)
Amortization of acquisition-related inventory step-up	(1,992		)	(3,230		)	—
Restructuring charges	(625		)	(1,431		)	(1,361		)
Loss on net assets held for sale	(23,588		)	—			—
SkyWatch product quality accrual	(4,388		)	(2,500		)	—
Consolidated earnings from operations	289,961			295,718			305,764
Interest and non-operating expense, net	(10,896		)	(19,761		)	(318		)
Consolidated earnings before income taxes	$	279,065		$	275,957		$	305,446

Unallocated corporate expenses include general corporate expenses, acquisition related costs and executive transition costs.

Segment Assets



	December 31,
	2017		2016
Segment assets (accounts receivable, net and inventories):
Surveillance	$	296,891	$	283,324
Instruments	139,367		114,681
Security	34,735		93,174
OEM & Emerging Markets	149,346		144,862
Maritime	66,689		61,494
Detection	31,842		25,856
	$	718,870	$	723,391



	December 31,
	2017		2016
Segment goodwill:
Surveillance	$	253,341	$	152,383
Instruments	155,937		147,595
Security	92,719		102,983
OEM & Emerging Markets	256,745		252,647
Maritime	103,048		97,860
Detection	48,021		47,938
	$	909,811	$	801,406


Note 17.	Operating Segments and Related Information - (Continued)

By Significant Geographical Location

Revenue and Long-Lived Assets by Geographic Area

Information related to revenue by significant geographical location, determined by the end customer, is as follows (in thousands):



	Year Ended December 31,
	2017		2016		2015
United States	$	956,438	$	903,582	$	830,485
Europe	375,474		338,805		338,886
Asia	227,047		195,913		175,616
Middle East/Africa	127,796		130,890		125,848
Canada/Latin America	113,679		92,977		86,232
	$	1,800,434	$	1,662,167	$	1,557,067

Long-lived assets are comprised of net property and equipment, net identifiable intangible assets, goodwill and other long-term assets. Long-lived assets by significant geographic locations are as follows (in thousands):



	December 31,
	2017		2016
United States	$	797,816	$	676,007
Europe	343,208		673,767
Other foreign	260,782		60,032
	$	1,401,806	$	1,409,806

Revenue Derived from Major Customers

Major Customers

Revenue derived from major customers is as follows (in thousands):



	Year Ended December 31,
	2017		2016		2015
United States government	$	466,304	$	416,341	$	321,420