Consolidated Condensed Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Nov. 30, 2020	Nov. 30, 2019	Nov. 30, 2020	Nov. 30, 2019
Statement of Comprehensive Income [Abstract]
Change in fair value of interest rate lock agreements, tax expense (benefit)	$ 5,400	$ 7,346	$ 9,072	$ (2,498)
Amortization of interest rate lock agreements, tax benefit	115	116	231	295
Other comprehensive income (loss), tax expense (benefit)	$ 5,515	$ 7,462	$ 9,303	$ (2,203)

Amount, before reclassification, of tax expense (benefit) for gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 12
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Amount of tax expense (benefit) for reclassification of gain (loss) from accumulated other comprehensive income (AOCI) for derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

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Amount of tax expense (benefit) allocated to other comprehensive income (loss) attributable to parent entity.

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