Intangibles

6 Months Ended

Oct. 31, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Intangibles

IntangiblesThe components of customer relationship intangibles were:

	October 31,		April 30,
(in thousands)	2020		2020
Customer relationship intangibles	$	274,000	$	274,000
Less accumulated amortization	(129,389)		(106,556)
Total	$	144,611	$	167,444

The components of trademarks were:

	October 31,		April 30,
(in thousands)	2020		2020
Trademarks	$	10,000	$	10,000
Less accumulated amortization	(9,444)		(7,778)
Total	$	556	$	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 each of the three month periods ended October 31, 2020 and 2019 was $12.3 million, and $24.5 million for each of the six month periods ended October 31, 2020 and 2019.