The Company operates in three geographic segments: Americas, Europe, and APMEA. During the third quarter ended September 29, 2019, the Company completed an acquisition within the Americas segment resulting in $38.3 million of goodwill. The acquisition is not considered material to the Company’s consolidated financial statements. The changes in the carrying amount of goodwill by geographic segment are as follows:

Intangible assets include the following:


	September 29, 2019						December 31, 2018
	Gross				Net		Gross				Net
	Carrying		Accumulated		Carrying		Carrying		Accumulated		Carrying
	Amount		Amortization		Amount		Amount		Amortization		Amount
	(in millions)
Patents	$	16.1	$	(15.8)	$	0.3	$	16.1	$	(15.8)	$	0.3
Customer relationships		232.3		(154.0)		78.3		232.9		(146.9)		86.0
Technology		56.8		(30.5)		26.3		54.6		(27.3)		27.3
Trade names		25.8		(12.7)		13.1		26.1		(11.5)		14.6
Other		4.3		(3.6)		0.7		4.3		(3.5)		0.8
Total amortizable intangibles		335.3		(216.6)		118.7		334.0		(205.0)		129.0
Indefinite-lived intangible assets		35.5		—		35.5		36.2		—		36.2
	$	370.8	$	(216.6)	$	154.2	$	370.2	$	(205.0)	$	165.2

Aggregate amortization expense for amortized intangible assets for the third quarters ended September 29, 2019 and September 30, 2018 was $3.8 million and $4.5 million, respectively, and for the first nine months of 2019 and 2018 was $11.6 million and $15.2 million, respectively. As a result of the acquisition completed in the third quarter of 2019, the Company recorded $2.2 million of intangible assets related to developed technology.