Long-Term Debt Long-Term Debt (Tables)

6 Months Ended

Oct. 31, 2018

Debt Disclosure [Abstract]

Components of Long-Term Debt

The components of long-term debt are as follows:

							(in 000s)
As of	October 31, 2018			October 31, 2017			April 30, 2018
Senior Notes, 4.125%, due October 2020	$	650,000		$	650,000		$	650,000
Senior Notes, 5.500%, due November 2022	500,000			500,000			500,000
Senior Notes, 5.250%, due October 2025	350,000			350,000			350,000
Capital lease obligation	—			6,125			5,628
Debt issuance costs and discounts	(8,672		)	(11,293		)	(9,993		)
	1,491,328			1,494,832			1,495,635
Less: Current portion	—			(1,004		)	(1,026		)
	$	1,491,328		$	1,493,828		$	1,494,609