CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jan. 31, 2020	Jan. 31, 2019	Jan. 31, 2020	Jan. 31, 2019
REVENUES:
Service revenues	$ 519,205	$ 468,384	$ 830,368	$ 762,438
OPERATING EXPENSES:
Costs of revenues	462,521	421,026	945,119	893,401
Selling, general and administrative	209,288	185,458	475,758	404,517
Total operating expenses	671,809	606,484	1,420,877	1,297,918
Other income (expense), net	1,879	2,269	13,741	11,275
Interest expense on borrowings	(26,305)	(22,833)	(68,682)	(65,214)
Loss from continuing operations before income tax benefit	(177,030)	(158,664)	(645,450)	(589,419)
Income tax benefit	(49,004)	(38,885)	(188,146)	(149,906)
Net loss from continuing operations	(128,026)	(119,779)	(457,304)	(439,513)
Net loss from discontinued operations, net of tax benefits of $488 and $1,962, $3,173 and $4,731	(1,657)	(6,675)	(10,625)	(15,887)
Net loss	$ (129,683)	$ (126,454)	$ (467,929)	$ (455,400)
BASIC AND DILUTED LOSS PER SHARE:
Continuing operations (in usd per share)	$ (0.66)	$ (0.58)	$ (2.31)	$ (2.13)
Discontinued operations (in usd per share)	(0.01)	(0.04)	(0.05)	(0.08)
Consolidated (in usd per share)	(0.67)	(0.62)	(2.36)	(2.21)
Cash dividends declared per share (in usd per share)	$ 0.26	$ 0.25	$ 0.78	$ 0.75
COMPREHENSIVE LOSS:
Net loss	$ (129,683)	$ (126,454)	$ (467,929)	$ (455,400)
Change in foreign currency translation adjustments and other	(3,574)	1,238	(4,975)	(3,339)
Other comprehensive income (loss)	(3,574)	1,238	(4,975)	(3,339)
Comprehensive loss	(133,257)	(125,216)	(472,904)	(458,739)
Service revenues
REVENUES:
Service revenues	419,955	373,659	691,762	627,786
Royalty, product and other revenues
REVENUES:
Service revenues	$ 99,250	$ 94,725	$ 138,606	$ 134,652