GOODWILL AND INTANGIBLE ASSETS

Goodwill and intangible assets, net are as follows:



	December 31,
	2018		2017
	(In thousands)
Goodwill	$	2,726,859	$	2,559,066
Intangible assets with indefinite lives	458,104		459,143
Intangible assets with definite lives, net of accumulated amortization	173,318		204,594
Total goodwill and intangible assets, net	$	3,358,281	$	3,222,803

The following table presents the balance of goodwill by reportable segment, including the changes in the carrying value of goodwill, for the year ended December 31, 2018:



	Balance at December 31, 2017		Additions		(Deductions)			Transfers In/(Out)			Foreign Exchange Translation			Balance at December 31, 2018
	(In thousands)
Match Group	$	1,247,899	$	11,187	$	—		$	—		$	(14,073	)	$	1,245,013
ANGI Homeservices	768,317		142,768		(14,373		)	—			(3,912		)	892,800
Vimeo	77,303		—		(151		)	—			—			77,152
Applications:
Desktop	265,146		—		—			—			—			265,146
Mosaic Group	182,096		50,784		—			7,323			(457		)	239,746
Total Applications	447,242		50,784		—			7,323			(457		)	504,892
Emerging & Other	18,305		3,684		(7,664		)	(7,323		)	—			7,002
Total	$	2,559,066	$	208,423	$	(22,188	)	$	—		$	(18,442	)	$	2,726,859

Additions primarily relate to the acquisitions of Handy (included in the ANGI Homeservices segment), TelTech and iTranslate (included in the Applications segment), Hinge (included in the Match Group segment), and BlueCrew (included in the Emerging & Other segment). Deductions relate to the sales of Felix (included in the ANGI Homeservices segment) and Electus (included in the Emerging & Other segment).

The following table presents the balance of goodwill by reportable segment, including the changes in the carrying value of goodwill, for the year ended December 31, 2017:



	Balance at December 31, 2016		Additions		(Deductions)			Foreign Exchange Translation		Balance at December 31, 2017
	(In thousands)
Match Group	$	1,206,538	$	255	$	—		$	41,106	$	1,247,899
ANGI Homeservices	170,611		590,772		—			6,934		768,317
Vimeo	9,649		67,654		—			—		77,303
Applications:
Desktop	265,146		—		—			—		265,146
Mosaic Group	182,096		—		—			—		182,096
Total Applications	447,242		—		—			—		447,242
Emerging & Other	90,012		2,715		(74,430		)	8		18,305
Total	$	1,924,052	$	661,396	$	(74,430	)	$	48,048	$	2,559,066

Additions primarily relate to the acquisitions of Angie's List, MyBuilder and HomeStars (included in the ANGI Homeservices segment), and Livestream (included in the Vimeo segment). Deductions relate to the sale of The Princeton Review (included in the Emerging & Other segment).

Prior to the fourth quarter of 2018, IAC Publishing was a reportable segment consisting of one operating segment and one reporting unit. In the fourth quarter of 2018, IAC Publishing was split into the Dotdash and the Emerging & Other segments (related to the remaining businesses previously included in the IAC Publishing segment). The accumulated goodwill impairment of IAC Publishing was allocated to these businesses based upon their relative fair values as of October 1, 2018. The December 31, 2018 and 2017 goodwill balance reflects accumulated impairment losses of $529.1 million, $399.7 million, $198.3 million and $11.6 million at Applications, the businesses previously included in the IAC Publishing segment, excluding Dotdash (included in the Emerging & Other segment), Dotdash and College Humor Media (included in the Emerging & Other segment), respectively.

Intangible assets with indefinite lives are trade names and trademarks acquired in various acquisitions. At December 31, 2018 and 2017, intangible assets with definite lives are as follows:



	December 31, 2018
	Gross Carrying Amount		Accumulated Amortization			Net		Weighted-Average Useful Life (Years)
	(In thousands)
Technology	$	143,303	$	(53,199	)	$	90,104	4.7
Service professional and contractor relationships	99,528		(44,674		)	54,854		2.9
Customer lists and user base	30,099		(15,126		)	14,973		2.9
Memberships	15,900		(6,640		)	9,260		3.0
Trade names	12,393		(9,393		)	3,000		3.3
Other	8,500		(7,373		)	1,127		4.8
Total	$	309,723	$	(136,405	)	$	173,318	3.8



	December 31, 2017
	Gross Carrying Amount		Accumulated Amortization			Net		Weighted-Average Useful Life (Years)
	(In thousands)
Technology	$	115,200	$	(37,357	)	$	77,843	4.8
Service professional and contractor relationships	99,497		(11,452		)	88,045		3.0
Customer lists and user base	23,468		(5,401		)	18,067		2.2
Memberships	15,900		(1,340		)	14,560		3.0
Trade names	16,986		(13,634		)	3,352		2.6
Other	8,500		(5,773		)	2,727		4.8
Total	$	279,551	$	(74,957	)	$	204,594	3.7

At December 31, 2018, amortization of intangible assets with definite lives for each of the next five years and thereafter is estimated to be as follows:



Years Ending December 31,	(In thousands)
2019	$	71,155
2020	51,916
2021	19,433
2022	16,310
2023	10,239
Thereafter	4,265
Total	$	173,318