Goodwill and Intangible Assets, Intangible Assets (Details) - USD ($) $ in Thousands		12 Months Ended
		Apr. 30, 2021	Apr. 30, 2022
Intangible assets with definite lives, net [Abstract]
Cost	[1]	$ 1,536,199	$ 1,630,461
Accumulated amortization	[1]	(650,938)	(817,331)
Total	[1]	885,261	813,130
Intangible assets with indefinite lives [Abstract]
Cost		130,041	118,299
Total		130,041	118,299
Intangible assets (excluding goodwill) [Abstract]
Cost		1,666,240	1,748,760
Total Intangible Assets, Net		1,015,302	931,429
Brands and Trademarks [Member]
Intangible assets with indefinite lives [Abstract]
Cost	[2]	37,000	37,000
Total	[2]	37,000	37,000
Publishing Rights [Member]
Intangible assets with indefinite lives [Abstract]
Cost		93,041	81,299
Total		93,041	81,299
Brands [Member]
Intangible assets (excluding goodwill) [Abstract]
Impairment charges (BW in FY20)		89,500
Publishing Rights [Member]
Intangible assets with definite lives, net [Abstract]
Cost	[1]	1,062,072	1,099,778
Accumulated amortization	[1]	(497,843)	(599,841)
Total	[1]	564,229	499,937
Customer Relationships [Member]
Intangible assets with definite lives, net [Abstract]
Cost	[1]	384,462	409,097
Accumulated amortization	[1]	(117,985)	(167,039)
Total	[1]	266,477	242,058
Developed Technology [Member]
Intangible assets with definite lives, net [Abstract]
Cost	[1],[2]	42,785	72,398
Accumulated amortization	[1],[2]	(7,824)	(17,677)
Accumulated impairment		2,800	2,800
Total	[1],[2]	34,961	54,721
Brands and Trademarks [Member]
Intangible assets with definite lives, net [Abstract]
Cost	[1]	45,630	47,533
Accumulated amortization	[1]	(26,094)	(31,512)
Accumulated impairment		93,100	93,100
Total	[1]	19,536	16,021
Covenants Not to Compete [Member]
Intangible assets with definite lives, net [Abstract]
Cost	[1]	1,250	1,655
Accumulated amortization	[1]	(1,192)	(1,262)
Total	[1]	$ 58	$ 393

[1] Refer to Note 4, “Acquisitions,” for more information related to the acquisitions that occurred in years ended April 30, 2022 and 2021.

[2] The developed technology balance as of April 30, 2022 and 2021 is presented net of accumulated impairments and write-offs of $2.8 million. The indefinite-lived brands and trademarks balance as of April 30, 2022 and 2021 is net of accumulated impairments of $93.1 million.