Goodwill, Service Contracts and Other Assets - Schedule of Information Regarding Service Contracts and Other Assets (Details) - USD ($) $ in Thousands	May 31, 2025	May 31, 2024	May 31, 2023
Information regarding service contracts and other assets
Total future amortization expense	$ 694,407
Other assets, carrying amount	1,159,242	$ 1,010,869
Other assets, accumulated amortization	696,600	585,918
Other assets, net	462,642	424,951
Capitalized contract costs
Information regarding service contracts and other assets
Other assets, carrying amount	896,632	777,535
Other assets, accumulated amortization	621,351	515,041
Other assets, net	275,281	262,494
Current portion of capitalized contract costs	96,500	94,600
Noncompete and consulting agreements and other
Information regarding service contracts and other assets
Other assets, carrying amount	262,610	233,334
Other assets, accumulated amortization	75,249	70,877
Other assets, net	187,361	162,457
Service contracts
Information regarding service contracts and other assets
Service contracts, carrying amount	1,078,305	1,033,762
Service contracts, accumulated amortization	768,477	711,860
Total future amortization expense	$ 309,828	$ 321,902	$ 346,574