Fair Value Measurements (Details) - Fair Value, Measurements, Recurring - USD ($) $ in Thousands	Feb. 28, 2023	May 31, 2022
Fair value on a recurring basis
Cash and cash equivalents	$ 88,563	$ 90,471
Other assets, net:
Total assets at fair value	158,634	147,348
Interest rate lock agreements
Other assets, net:
Interest rate lock agreements	70,071	56,877
Level 1
Fair value on a recurring basis
Cash and cash equivalents	88,563	90,471
Other assets, net:
Total assets at fair value	88,563	90,471
Level 1 | Interest rate lock agreements
Other assets, net:
Interest rate lock agreements	0	0
Level 2
Fair value on a recurring basis
Cash and cash equivalents	0	0
Other assets, net:
Total assets at fair value	70,071	56,877
Level 2 | Interest rate lock agreements
Other assets, net:
Interest rate lock agreements	70,071	56,877
Level 3
Fair value on a recurring basis
Cash and cash equivalents	0	0
Other assets, net:
Total assets at fair value	0	0
Level 3 | Interest rate lock agreements
Other assets, net:
Interest rate lock agreements	$ 0	$ 0