CONSOLIDATED STATEMENTS OF INCOME (LOSS) - USD ($) shares in Thousands, $ in Thousands		12 Months Ended
		Apr. 30, 2021		Apr. 30, 2020		Apr. 30, 2019
Revenue, net		$ 1,941,501		$ 1,831,483		$ 1,800,069
Costs and expenses
Cost of sales		625,335		591,024		554,722
Operating and administrative expenses		1,022,660		997,355		963,582
Impairment of goodwill and intangible assets		0		202,348		0
Restructuring and related charges	[1]	33,310		32,607		3,118
Amortization of intangible assets		74,685		62,436		54,658
Total costs and expenses		1,755,990		1,885,770		1,576,080
Operating income (loss)		185,511		(54,287)		223,989
Interest expense		(18,383)		(24,959)		(16,121)
Foreign exchange transaction (losses) gains		(7,977)		2,773		(6,016)
Other income		16,761		13,381		11,100
Income (loss) before taxes		175,912		(63,092)		212,952
Provision for income taxes		27,656		11,195		44,689
Net income (loss)		$ 148,256		$ (74,287)		$ 168,263
Earnings (loss) per share:
Basic (in dollars per share)		$ 2.65	[2]	$ (1.32)	[2],[3]	$ 2.94
Diluted (in dollars per share)		$ 2.63	[2]	$ (1.32)	[2],[3]	$ 2.91
Weighted average number of common shares outstanding:
Basic (in shares)		55,930		56,209		57,192
Diluted (in shares)		56,461		56,209		57,840

[1] See Note 7, “Restructuring and Related Charges” and Note 11, “Goodwill and Intangible Assets” for these charges by segment.

[2] The sum of the quarterly earnings (loss) per share amounts may not agree to the respective annual amounts due to rounding.

[3] In calculating diluted earnings (loss) per common share for the fourth quarter and year ended April 30, 2020, our diluted weighted average number of common shares outstanding excludes the effect of unvested restricted stock units and other stock awards as the effect was anti-dilutive. This occurs when a US GAAP net loss is reported and the effect of using dilutive shares is antidilutive.