Intangibles

6 Months Ended

Oct. 31, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Intangibles

Intangibles

The components of customer relationship intangibles were:

	October 31,			April 30,
(in thousands)	2019			2019
Customer relationship intangibles	$	274,000		$	274,000
Less accumulated amortization	(83,722		)	(60,889		)
Total	$	190,278		$	213,111

The components of trademarks were:

	October 31,			April 30,
(in thousands)	2019			2019
Trademarks	$	10,000		$	10,000
Less accumulated amortization	(6,111		)	(4,445		)
Total	$	3,889		$	5,555

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 months ended October 31, 2019 and 2018 was $12.3 million and $12.2 million, respectively, and $24.5 million and $24.5 million for the six months ended October 31, 2019 and 2018, respectively.