Consolidated Statements Of Operations And Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2021	Apr. 30, 2020	Apr. 30, 2019
REVENUES:
Revenues	$ 3,413,987	$ 2,639,720	$ 3,094,881
OPERATING EXPENSES:
Costs of revenues	1,842,092	1,712,276	1,756,922
Impairment of goodwill	0	106,000	0
Selling, general and administrative	802,268	744,361	722,167
Costs and Expenses, Total	2,644,360	2,562,637	2,479,089
Other income (expense), net	5,979	15,637	16,419
Interest expense on borrowings	(106,870)	(96,094)	(87,051)
Income (loss) from continuing operations before income taxes (benefit)	668,736	(3,374)	545,160
Income taxes (benefit)	78,524	(9,530)	99,904
Net income from continuing operations	590,212	6,156	445,256
Net loss from discontinued operations, net of tax benefits of $3,883, $4,085 and $6,788	(6,421)	(13,682)	(22,747)
NET INCOME (LOSS)	$ 583,791	$ (7,526)	$ 422,509
BASIC EARNINGS (LOSS) PER SHARE:
Continuing operations (in usd per share)	$ 3.15	$ 0.03	$ 2.16
Discontinued operations (in usd per share)	(0.04)	(0.07)	(0.11)
Consolidated (in usd per share)	3.11	(0.04)	2.05
DILUTED EARNINGS (LOSS) PER SHARE:
Continuing operations (in usd per share)	3.11	0.03	2.15
Discontinued operations (in usd per share)	(0.03)	(0.07)	(0.11)
Consolidated (in usd per share)	$ 3.08	$ (0.04)	$ 2.04
COMPREHENSIVE INCOME (LOSS):
Net income (loss)	$ 583,791	$ (7,526)	$ 422,509
Change in foreign currency translation adjustments	56,362	(31,160)	(6,113)
Other comprehensive income (loss)	56,362	(31,160)	(6,113)
Comprehensive income (loss)	640,153	(38,686)	416,396
Service revenues
REVENUES:
Revenues	3,067,223	2,327,323	2,691,727
Royalty, product and other revenues
REVENUES:
Revenues	$ 346,764	$ 312,397	$ 403,154