Segment Information - Revenues from External Customers and Technology, Property and Equipment, Net (Details) - USD ($) $ in Thousands	12 Months Ended
Apr. 30, 2023	Apr. 30, 2022	Apr. 30, 2021
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue, net	$ 2,019,900	$ 2,082,928	$ 1,941,501
Technology, property, and equipment, net	247,149	271,572	282,270
Reportable Geographical Components \| United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue, net	995,918	1,011,716	990,499
Technology, property, and equipment, net	210,547	232,824	241,217
Reportable Geographical Components \| United Kingdom
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue, net	150,601	164,205	145,806
Technology, property, and equipment, net	19,664	19,260	19,436
Reportable Geographical Components \| China
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue, net	150,939	140,323	92,305
Technology, property, and equipment, net	1,905	2,609	567
Reportable Geographical Components \| Japan
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue, net	89,084	94,040	91,957
Technology, property, and equipment, net	675	807	234
Reportable Geographical Components \| Australia
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue, net	79,802	80,993	57,569
Technology, property, and equipment, net	196	476	890
Reportable Geographical Components \| Canada
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue, net	83,039	80,640	67,635
Technology, property, and equipment, net	61	194	1,067
Reportable Geographical Components \| Germany
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue, net	59,867	75,805	78,035
Technology, property, and equipment, net	8,333	7,267	8,459
Reportable Geographical Components \| France
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue, net	34,260	43,007	45,681
Technology, property, and equipment, net	1,977	3,284	4,329
Reportable Geographical Components \| India
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue, net	43,505	38,279	32,228
Technology, property, and equipment, net	814	984	1,012
Reportable Geographical Components \| Other Countries
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue, net	332,885	353,920	339,786
Technology, property, and equipment, net	$ 2,977	$ 3,867	$ 5,059

Revenues from External Customers and Long-Lived Assets [Line Items]