Intangible assets, net (Tables)

12 Months Ended

Dec. 31, 2017

Goodwill And Intangible Assets Disclosure [Abstract]

Intangible assets other than goodwill consist of the following:

(In thousands)	Amortization period	December 31, 2017			December 31, 2016
Gross amount:
Software developed for internal use	3-10 years		19,614			11,438
Acquired proprietary technology	5 years		11,382			13,532
Customer relationships	7-10 years		34,986			34,986
Trade names	20 years		16,357			18,057
Domain names	20 years		191			191
Databases	5-10 years		31,292			31,292
Non-competition agreements	2-5 years		1,768			1,768
			115,590			111,264
Accumulated amortization:
Software developed for internal use			(1,779	)		(505	)
Acquired proprietary technology			(4,693	)		(2,660	)
Customer relationships			(9,628	)		(4,840	)
Trade names			(1,686	)		(916	)
Domain names			(20	)		(10	)
Databases			(6,964	)		(3,354	)
Non-competition agreements			(1,113	)		(448	)
			(25,883	)		(12,733	)
Net intangible assets:
Software developed for internal use			17,835			10,933
Acquired proprietary technology			6,689			10,872
Customer relationships			25,358			30,146
Trade names			14,671			17,141
Domain names			171			181
Databases			24,328			27,938
Non-competition agreements			655			1,320
		$	89,707		$	98,531

Schedule of Estimated Amortization Expenses

As of December 31, 2017, estimated amortization expenses related to the Company’s intangible assets for 2018 through 2023 and thereafter are as follows:

(In thousands)
Year	December 31, 2017
2018	$	14,236
2019		14,307
2020		13,664
2021		10,500
2022		9,661
2023 and thereafter		27,339
Total	$	89,707