Fair Value Measurements (Tables)

9 Months Ended

Feb. 28, 2019

Fair Value Disclosures [Abstract]

Schedule of Fair Value of Financial Instruments Measured on a Recurring Basis

These financial instruments measured at fair value on a recurring basis are summarized below: 

	As of February 28, 2019
(In thousands)	Level 1		Level 2		Level 3		Fair Value
Cash and cash equivalents	$	80,859	$	—	$	—	$	80,859
Total assets at fair value	$	80,859	$	—	$	—	$	80,859
Accrued liabilities:
Interest rate lock agreements	$	—	$	8,460	$	—	$	8,460
Total liabilities at fair value	$	—	$	8,460	$	—	$	8,460

	As of May 31, 2018
(In thousands)	Level 1		Level 2		Level 3		Fair Value
Cash and cash equivalents	$	138,724	$	—	$	—	$	138,724
Total assets at fair value	$	138,724	$	—	$	—	$	138,724