Revenue Recognition, Contracts with Customers, Disaggregation of Revenue (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2021	Oct. 31, 2020
Revenue from contracts with customers disaggregated by segment and product type [Abstract]
Revenue		$ 533,003	$ 491,011	$ 1,021,391	$ 922,337
Research Publishing & Platforms [Member] | Research Publishing [Member] | Journal Subscriptions, Open Access and Comprehensive Agreements [Member] | Product Concentration Risk [Member] | Revenue from Contract with Customers [Member]
Revenue from contracts with customers disaggregated by segment and product type [Abstract]
Revenue percentage		78.00%		79.00%
Academic & Professional Learning [Member] | Education Publishing [Member] | Print and Digital [Member] | Transferred at Point in Time [Member] | Product Concentration Risk [Member] | Revenue from Contract with Customers [Member]
Revenue from contracts with customers disaggregated by segment and product type [Abstract]
Revenue percentage		63.00%		68.00%
Academic & Professional Learning [Member] | Education Publishing [Member] | Digital Courseware [Member] | Transferred over Time [Member] | Product Concentration Risk [Member] | Revenue from Contract with Customers [Member]
Revenue from contracts with customers disaggregated by segment and product type [Abstract]
Revenue percentage		24.00%		17.00%
Academic & Professional Learning [Member] | Professional Learning [Member] | Professional Publishing, and Licensing and Other, [Member] | Transferred at Point in Time [Member] | Product Concentration Risk [Member] | Revenue from Contract with Customers [Member]
Revenue from contracts with customers disaggregated by segment and product type [Abstract]
Revenue percentage		61.00%		61.00%
Academic & Professional Learning [Member] | Professional Learning [Member] | Corporate Training and Corporate Learning [Member] | Transferred over Time [Member] | Product Concentration Risk [Member] | Revenue from Contract with Customers [Member]
Revenue from contracts with customers disaggregated by segment and product type [Abstract]
Revenue percentage		39.00%		39.00%
Education Services [Member] | Talent Development Services [Member] | Wiley NXT [Member]
Revenue from contracts with customers disaggregated by segment and product type [Abstract]
Revenue			700		1,200
Operating Segments [Member] | Research Publishing & Platforms [Member]
Revenue from contracts with customers disaggregated by segment and product type [Abstract]
Revenue		$ 275,154	251,334	$ 549,910	492,144
Operating Segments [Member] | Research Publishing & Platforms [Member] | Research Publishing [Member]
Revenue from contracts with customers disaggregated by segment and product type [Abstract]
Revenue		262,873	240,691	526,231	471,155
Operating Segments [Member] | Research Publishing & Platforms [Member] | Research Platforms [Member]
Revenue from contracts with customers disaggregated by segment and product type [Abstract]
Revenue		12,281	10,643	23,679	20,989
Operating Segments [Member] | Academic & Professional Learning [Member]
Revenue from contracts with customers disaggregated by segment and product type [Abstract]
Revenue	[1]	176,529	169,913	315,793	296,345
Operating Segments [Member] | Academic & Professional Learning [Member] | Education Publishing [Member]
Revenue from contracts with customers disaggregated by segment and product type [Abstract]
Revenue	[2]	98,581	102,428	164,961	166,031
Operating Segments [Member] | Academic & Professional Learning [Member] | Professional Learning [Member]
Revenue from contracts with customers disaggregated by segment and product type [Abstract]
Revenue		77,948	67,485	150,832	130,314
Operating Segments [Member] | Education Services [Member]
Revenue from contracts with customers disaggregated by segment and product type [Abstract]
Revenue	[1]	81,320	69,764	155,688	133,848
Operating Segments [Member] | Education Services [Member] | University Services [Member]
Revenue from contracts with customers disaggregated by segment and product type [Abstract]
Revenue	[3]	58,081	56,261	112,475	106,523
Operating Segments [Member] | Education Services [Member] | Talent Development Services [Member]
Revenue from contracts with customers disaggregated by segment and product type [Abstract]
Revenue	[2],[4]	$ 23,239	$ 13,503	$ 43,213	$ 27,325

[1] In May 2021, we moved the WileyNXT product offering from Academic & Professional Learning to Education Services. As a result, the prior period results related to the WileyNXT product offering have been included in Education Services. The Revenue, Adjusted Contribution to Profit and Depreciation and Amortization for WileyNXT was $0.7 million, $(0.1) million, and none, respectively, for the three months ended October 31, 2020. The Revenue, Adjusted Contribution to Profit and Depreciation and Amortization for WileyNXT was $1.2 million, $(0.2) million, and none, respectively, for the six months ended October 31, 2020. There were no changes to our total consolidated financial results.

[2] In May 2021, we moved the WileyNXT product offering from Academic & Professional Learning – Education Publishing to Education Services – Talent Development Services. As a result, the prior period results related to the WileyNXT product offering have been included in Education Services – Talent Development Services. The revenue was $0.7 million and $1.2 million for the three and six months ended October 31, 2020, respectively. There were no changes to our total consolidated financial results.

[3] University Services was previously referred to as Education Services OPM.

[4] Talent Development Services was previously referred to as mthree.