Cash and Marketable Securities (Tables)

9 Months Ended

Feb. 28, 2022

Marketable Securities as of February 28, 2022 and May 31, 2021 are listed below by classification and remaining maturities.


			February 28,		May 31,
(in thousands)	Maturity		2022		2021
Commercial Paper & Corporate Bonds		0 - 90 days		94,740		106,631
		91 - 180 days		85,373		78,727
		181 days - 1 year		57,310		87,590
		1 - 2 years		97,887		26,752
Certificates of Deposit		0 - 90 days		250		3,262
		91 - 180 days		—		1,260
		181 days - 1 year		—		1,263
		1 - 2 years		—		—

Total Marketable Securities			$	335,560	$	305,485

The components of marketable securities at February 28, 2022 are as follows:


	Amortized		Unrealized		Unrealized
(in thousands)	Cost		Gains		Losses			Fair Value
Commercial Paper & Corporate Bonds		337,159		7		(1,856	)		335,310
Certificates of Deposit		250		—		—			250

Total Marketable Securities	$	337,409	$	7	$	(1,856	)	$	335,560

The components of marketable securities at May 31, 2021 are as follows:


	Amortized		Unrealized		Unrealized
(in thousands)	Cost		Gains		Losses			Fair Value
Commercial Paper & Corporate Bonds		299,524		209		(33	)		299,700
Certificates of Deposit		5,755		30		—			5,785

Total Marketable Securities	$	305,279	$	239	$	(33	)	$	305,485