Investments

6 Months Ended

Nov. 30, 2014

Investments, Debt and Equity Securities [Abstract]

Investments

Investments.

At November 30, 2014, the Company’s investment securities were classified as follows:

	Amortized		Unrealized					Fair
(in millions)	Cost		Gains		Losses			Value
Available-for-sale:
Equity securities	$	0.5	$	0.1	$	—		$	0.6
Time deposit	10.2		—		(0.1		)	10.1
Total available-for-sale investments	$	10.7	$	0.1	$	(0.1	)	$	10.7

	Amortized		Realized				Fair
	Cost		Gains		Losses		Value
Trading:
Equity securities	$	2.7	$	0.1	$	—	$	2.8
Total trading investments	$	2.7	$	0.1	$	—	$	2.8

At May 31, 2014, the Company’s investment securities were classified as follows:

	Amortized		Unrealized					Fair
(in millions)	Cost		Gains		Losses			Value
Available-for-sale:
Equity securities	$	0.2	$	0.6	$	(0.3	)	$	0.5
Time deposit	10.2		—		—			10.2
Total available-for-sale investments	$	10.4	$	0.6	$	(0.3	)	$	10.7
	Amortized		Realized					Fair
	Cost		Gains		Losses			Value
Trading:
Equity securities	$	1.6	$	0.3	$	(0.1	)	$	1.8
Total trading investments	$	1.6	$	0.3	$	(0.1	)	$	1.8

The Company recorded proceeds on the sales/maturities of investments of $15.2 million and $9.5 million during the three months ended November 31, 2014 and 2013, respectively, and $15.2 million and $19.0 million during the six months ended November 30, 2014 and 2013, respectively. The Company purchased investments of $10.1 million during the three months ended November 30, 2013, with no purchases during the three months ended November 30, 2014, and $16.3 million and $19.6 million during the six months ended November 30, 2014 and 2013, respectively.