Goodwill, Service Contracts and Other Assets, Net - Information Regarding Service Contracts and Other Assets, Net (Details) - USD ($) $ in Thousands	Feb. 28, 2023	May 31, 2022
Information regarding service contracts and other assets
Total future amortization expense	$ 706,155
Other assets, carrying amount	832,267	$ 728,160
Other assets, accumulated amortization	455,647	384,050
Other assets, net	376,620	344,110
Capitalized contract costs
Information regarding service contracts and other assets
Other assets, carrying amount	637,891	551,582
Other assets, accumulated amortization	389,140	319,358
Other assets, net	248,751	232,224
Other assets current	90,400	83,700
Noncompete and consulting agreements
Information regarding service contracts and other assets
Other assets, carrying amount	51,563	50,637
Other assets, accumulated amortization	45,131	43,775
Other assets, net	6,432	6,862
Other
Information regarding service contracts and other assets
Other assets, carrying amount	142,813	125,941
Other assets, accumulated amortization	21,376	20,917
Other assets, net	121,437	105,024
Service Contracts
Information regarding service contracts and other assets
Service contracts, carrying amount	1,001,864	1,001,311
Service contracts, accumulated amortization	644,718	609,673
Total future amortization expense	$ 357,146	$ 391,638