Goodwill, Service Contracts and Other Assets, Net - Information Regarding Service Contracts and Other Assets, Net (Details) - USD ($) $ in Thousands	Aug. 31, 2022	May 31, 2022
Information regarding service contracts and other assets
Total future amortization expense	$ 715,317
Other assets, carrying amount	760,384	$ 728,160
Other assets, accumulated amortization	406,968	384,050
Other assets, net	353,416	344,110
Capitalized contract costs
Information regarding service contracts and other assets
Other assets, carrying amount	580,949	551,582
Other assets, accumulated amortization	341,753	319,358
Other assets, net	239,196	232,224
Other assets current	86,100	83,700
Noncompete and consulting agreements
Information regarding service contracts and other assets
Other assets, carrying amount	50,944	50,637
Other assets, accumulated amortization	44,191	43,775
Other assets, net	6,753	6,862
Other
Information regarding service contracts and other assets
Other assets, carrying amount	128,491	125,941
Other assets, accumulated amortization	21,024	20,917
Other assets, net	107,467	105,024
Service Contracts
Information regarding service contracts and other assets
Service contracts, carrying amount	1,000,115	1,001,311
Service contracts, accumulated amortization	620,736	609,673
Total future amortization expense	$ 379,379	$ 391,638