Consolidated Statements Of Operations And Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended
	Jul. 31, 2019	Jul. 31, 2018
REVENUES:
Service revenues	$ 150,362	$ 145,183
OPERATING EXPENSES:
Costs of revenues	229,392	221,560
Selling, general and administrative	116,136	105,740
Total operating expenses	345,528	327,300
Other income (expense), net	9,123	4,542
Interest expense on borrowings	(21,071)	(21,190)
Loss from continuing operations before income tax benefit	(207,114)	(198,765)
Income tax benefit	(61,390)	(49,968)
Net loss from continuing operations	(145,724)	(148,797)
Net loss from discontinued operations, net of tax benefits of $1,358 and $1,162	(4,523)	(3,873)
Net loss	$ (150,247)	$ (152,670)
BASIC AND DILUTED LOSS PER SHARE:
Continuing operations (in usd per share)	$ (0.72)	$ (0.72)
Discontinued operations (in usd per share)	(0.02)	(0.02)
Consolidated (in usd per share)	(0.74)	(0.74)
DIVIDENDS PAID PER SHARE (in usd per share)	$ 0.26	$ 0.25
COMPREHENSIVE LOSS:
Net loss	$ (150,247)	$ (152,670)
Unrealized gains on securities, net of taxes	0	3
Change in foreign currency translation adjustments	(2,320)	(1,734)
Other comprehensive loss	(2,320)	(1,731)
Comprehensive loss	(152,567)	(154,401)
Service revenues
REVENUES:
Service revenues	132,159	126,860
Royalty, product and other revenues
REVENUES:
Service revenues	$ 18,203	$ 18,323