Goodwill and Intangible Assets

6 Months Ended

Jan. 31, 2020

Other Intangible Assets

Other intangible assets include customer relationships, patents, and trademarks with finite lives being amortized in accordance with the accounting guidance for other intangible assets. The Company also has unamortized indefinite-lived trademarks that are classified as other intangible assets. The net book value of these assets was as follows:



	January 31, 2020								July 31, 2019
	Weighted Average Amortization Period (Years)	Gross Carrying Amount		Accumulated Amortization			Net Book Value		Weighted Average Amortization Period (Years)	Gross Carrying Amount		Accumulated Amortization			Net Book Value
Amortized other intangible assets:
Customer relationships and other	9	$	46,561	$	(31,897	)	$	14,664	9	$	46,595	$	(29,343	)	$	17,252
Unamortized other intangible assets:
Trademarks	N/A	18,916		—			18,916		N/A	18,871		—			18,871
Total		$	65,477	$	(31,897	)	$	33,580		$	65,466	$	(29,343	)	$	36,123

The change in the gross carrying amount of other intangible assets as of January 31, 2020 compared to July 31, 2019 was due to the effects of currency fluctuations during the six-month period.

Amortization expense of intangible assets was $1,291 and $1,434 for the three months ended January 31, 2020 and 2019, respectively, and $2,582 and $2,870 for the six months ended January 31, 2020 and 2019, respectively. The amortization over each of the next five fiscal years is projected to be $5,163, $5,163, $4,894, $2,025 and $0 for the fiscal years ending July 31, 2020, 2021, 2022, 2023 and 2024, respectively.