Intangibles

9 Months Ended

Jan. 31, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Intangibles

Intangibles

The components of customer relationship intangibles were:

	January 31,		April 30,
(in thousands)	2021		2020
Customer relationship intangibles	$	274,000	$	274,000
Less accumulated amortization	(140,806)		(106,556)
Total	$	133,194	$	167,444

The components of trademarks were:

	January 31,		April 30,
(in thousands)	2021		2020
Trademarks	$	10,000	$	10,000
Less accumulated amortization	(10,000)		(7,778)
Total	$	—	$	2,222

Customer relationship intangibles and trademarks are amortized over the estimated useful lives on a straight-line basis over six and three years, respectively. Amortization expense for the three month periods ended January 31, 2021 and 2020 was $12.0 million and $12.3 million, respectively, and $36.5 million and $36.8 million, respectively, for each of the nine month periods ended January 31, 2021 and 2020.