20.	Goodwill and Other Intangible Assets, Net

The changes in the carrying amount of goodwill by reportable segment for the nine months ended September 30, 2018 were as follows (in thousands):

	Financial Services			Real Estate Services			Total
Balance at December 31, 2017	$	468,050		$	477,532		$	945,582
Acquisitions		—			38,439			38,439
Measurement period adjustments		12			(2,444	)		(2,432	)
Cumulative translation adjustment		(1,962	)		—			(1,962	)
Balance at September 30, 2018	$	466,100		$	513,527		$	979,627

During the nine months ended September 30, 2018, the Company recognized goodwill of approximately $38.4 million which was allocated to the Company’s Real Estate Services Segment. See Note 4—“Acquisitions” for more information. Goodwill is not amortized and is reviewed annually for impairment or more frequently if impairment indicators arise, in accordance with U.S. GAAP guidance on Goodwill and Other Intangible Assets.

Other intangible assets consisted of the following (in thousands, except weighted-average remaining life):

	September 30, 2018
	Gross Amount		Accumulated Amortization		Net Carrying Amount		Weighted- Average Remaining Life (Years)
Definite life intangible assets:
Customer-related	$	204,735	$	39,047	$	165,688		12.9
Technology		24,024		12,326		11,698		3.4
Noncompete agreements		36,535		20,886		15,649		2.4
Patents		10,412		10,272		140		7.9
All other		22,466		13,502		8,964		7.8
Total definite life intangible assets		298,172		96,033		202,139		11.3
Indefinite life intangible assets:
Trade names		83,912		—		83,912	N/A
Licenses		7,929		—		7,929	N/A
Total indefinite life intangible assets		91,841		—		91,841	N/A
Total	$	390,013	$	96,033	$	293,980		11.3

	December 31, 2017
	Gross Amount		Accumulated Amortization		Net Carrying Amount		Weighted- Average Remaining Life (Years)
Definite life intangible assets:
Customer-related	$	203,743	$	27,820	$	175,923		13.7
Technology		24,025		9,741		14,284		4.2
Noncompete agreements		34,333		16,180		18,153		2.7
Patents		10,629		10,049		580		3.6
All other		19,795		9,691		10,104		9.2
Total definite life intangible assets		292,525		73,481		219,044		11.9
Indefinite life intangible assets:
Trade names		84,048		—		84,048	N/A
Licenses		7,929		—		7,929	N/A
Total indefinite life intangible assets		91,977		—		91,977	N/A
Total	$	384,502	$	73,481	$	311,021		11.9

Intangible amortization expense was $7.3 million and $8.0 million for the three months ended September 30, 2018 and 2017, respectively. Intangible amortization expense was $23.6 million and $23.0 million for the nine months ended September 30, 2018 and 2017, respectively. Intangible amortization is included as part of “Other expenses” in the Company’s unaudited condensed consolidated statements of operations.

There was no impairment charge for the Company’s indefinite life intangibles for the three and nine months ended September 30, 2018. There was a $6.3 million impairment charge for the Company’s indefinite life intangibles for the three and nine months ended September 30, 2017.

The estimated future amortization expense of definite life intangible assets as of September 30, 2018 is as follows (in millions):

2018	$	7.1
2019		28.4
2020		23.7
2021		19.5
2022		14.7
2023 and thereafter		108.7
Total	$	202.1