Segment Reporting (Tables)

12 Months Ended

Dec. 31, 2018

Segment Reporting [Abstract]

Summary of Segment Performance

Below is our segment information (in thousands):

	For the Years Ended December 31,
	CAG		Water		LPD		Other		Unallocated Amounts			Consolidated Total
2018
Revenue	$	1,935,428	$	125,198	$	130,581	$	22,035	$	—		$	2,213,242
Income (loss) from operations	$	429,483	$	56,607	$	19,412	$	3,729	$	(17,896	)	$	491,335
Interest expense, net												(33,593		)
Income before provision for income taxes												457,742
Provision for income taxes												80,695
Net income												377,047
Less: Net income attributable to noncontrolling interest												16
Net income attributable to IDEXX Laboratories, Inc. stockholders												$	377,031
Depreciation and amortization	$	72,789	$	2,592	$	4,094	$	3,703	$	—		$	83,178
Expenditures for long-lived assets(1)	$	103,300	$	3,172	$	4,787	$	4,492	$	—		$	115,751
2017
Revenue	$	1,703,377	$	114,395	$	128,481	$	22,805	$	—		$	1,969,058
Income (loss) from operations	$	363,557	$	50,616	$	16,464	$	4,837	$	(22,446	)	$	413,028
Interest expense, net												(31,971		)
Income before provision for income taxes												381,057
Provision for income taxes												117,788
Net income												263,269
Less: Net income attributable to noncontrolling interest												125
Net income attributable to IDEXX Laboratories, Inc. stockholders												$	263,144
Depreciation and amortization	$	71,835	$	2,856	$	5,052	$	3,397	$	—		$	83,140
Expenditures for long-lived assets(1)	$	64,759	$	2,573	$	3,021	$	4,031	$	—		$	74,384
2016
Revenue	$	1,522,689	$	103,579	$	126,491	$	22,664	$	—		$	1,775,423
Income (loss) from operations	$	301,342	$	45,702	$	18,914	$	884	$	(16,603	)	$	350,239
Interest expense, net												(28,393		)
Income before provision for income taxes												321,846
Provision for income taxes												99,792
Net income												222,054
Less: Net income attributable to noncontrolling interest												9
Net income attributable to IDEXX Laboratories, Inc. stockholders												$	222,045
Depreciation and amortization	$	64,878	$	3,098	$	5,543	$	4,699	$	—		$	78,218
Expenditures for long-lived assets(1)	$	56,329	$	2,102	$	4,824	$	1,532	$	—		$	64,787

(1) Expenditures for long-lived assets exclude expenditures for intangible assets. See "Note 4. Acquisitions and Investments" for information regarding acquisitions of intangible assets during the years ended December 31, 2018, 2017 and 2016.  

Schedule of Net Long-Lived Assets by Principal Geographic Areas

Net long-lived assets, consisting of net property and equipment, are subject to geographic risks because they are generally difficult to move and to effectively utilize in another geographic area in a reasonable time period and because they are relatively illiquid. Net long-lived assets by principal geographic areas were as follows (in thousands):

	December 31, 2018		December 31, 2017
Americas
United States	$	348,240	$	310,696
Brazil	16,735		17,030
Canada	1,859		2,238
	366,834		329,964
Europe, the Middle East and Africa
Germany	25,036		7,522
United Kingdom	11,517		11,528
Netherlands	10,273		8,225
France	2,130		2,305
Switzerland	2,742		1,755
Other	3,763		3,838
	55,461		35,173
Asia Pacific Region
Japan	5,296		4,065
Australia	4,257		4,426
Other	5,422		5,468
	14,975		13,959
Total	$	437,270	$	379,096