Consolidated Statements Of Operations And Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2020	Apr. 30, 2019	Apr. 30, 2018
REVENUES:
Revenues	$ 2,639,720	$ 3,094,881	$ 3,159,931
OPERATING EXPENSES:
Costs of revenues	1,712,276	1,756,922	1,739,729
Impairment of goodwill	106,000	0	0
Selling, general and administrative	744,361	722,167	668,152
Total operating expenses	2,562,637	2,479,089	2,407,881
Other income (expense), net	15,637	16,419	6,054
Interest expense on borrowings	(96,094)	(87,051)	(89,372)
Income (loss) from continuing operations before income taxes (benefit)	(3,374)	545,160	668,732
Income taxes (benefit)	(9,530)	99,904	41,823
Net income from continuing operations	6,156	445,256	626,909
Net loss from discontinued operations, net of tax benefits of $4,085, $6,788 and $7,016	(13,682)	(22,747)	(13,760)
NET INCOME (LOSS)	$ (7,526)	$ 422,509	$ 613,149
BASIC EARNINGS (LOSS) PER SHARE:
Continuing operations (in usd per share)	$ 0.03	$ 2.16	$ 2.99
Discontinued operations (in usd per share)	(0.07)	(0.11)	(0.06)
Consolidated (in usd per share)	(0.04)	2.05	2.93
DILUTED EARNINGS (LOSS) PER SHARE:
Continuing operations (in usd per share)	0.03	2.15	2.98
Discontinued operations (in usd per share)	(0.07)	(0.11)	(0.07)
Consolidated (in usd per share)	$ (0.04)	$ 2.04	$ 2.91
COMPREHENSIVE INCOME (LOSS):
Net income (loss)	$ (7,526)	$ 422,509	$ 613,149
Change in foreign currency translation adjustments and other	(31,160)	(6,113)	996
Other comprehensive income (loss)	(31,160)	(6,113)	996
Comprehensive income (loss)	(38,686)	416,396	614,145
Service revenues
REVENUES:
Revenues	2,327,323	2,691,727	2,766,426
Royalty, product and other revenues
REVENUES:
Revenues	$ 312,397	$ 403,154	$ 393,505