Other Intangible Assets, Net

12 Months Ended

Dec. 31, 2022

Goodwill and Intangible Assets Disclosure [Abstract]

Other Intangible Assets, Net

Note 8. Other Intangible Assets, Net

Other intangible assets consisted of the following:

	December 31, 2022							December 31, 2021
		Carrying Amount,					Net		Carrying Amount,					Net
		Net of		Accumulated			Book		Net of		Accumulated			Book
		Impairment		Amortization			Value		Impairment		Amortization			Value
	U.S. $ in thousands
Developed technology	$	387,603	$	(283,671	)	$	103,932	$	406,578	$	(279,037	)	$	127,541
Patents		17,508		(8,970	)		8,538		16,220		(8,503	)		7,717
Trademarks and trade names		16,278		(14,030	)		2,248		26,055		(22,241	)		3,814
Customer relationships		93,609		(86,925	)		6,684		100,731		(87,559	)		13,172
Capitalized software development costs		7,066		(7,066	)		-		7,410		(7,410	)		-
	$	522,064	$	(400,662	)	$	121,402	$	556,994	$	(404,750	)	$	152,244

Amortization expenses

Amortization expense relating to intangible assets for the years ended December 31, 2022, 2021 and 2020, was approximately $37.1 million, $31.3 million and $24.3 million, respectively.

As of December 31, 2022, estimated future amortization expense relating to definite life intangible assets for each of the next five years and thereafter were as follows:

	Estimated amortization expenses
Year ending December 31,	(U.S. $ in thousands)
2023	23,409
2024	19,343
2025	16,851
2026	16,765
2027	15,797
2028 and thereafter	29,237
Total	121,402

During the year ended December 31, 2020, the Company recorded impairment charges of $5.3 million, related to its definite life intangible assets. No impairment charges were recorded during 2022 and 2021.