Investments (Tables)

6 Months Ended

Nov. 30, 2014

Investments, Debt and Equity Securities [Abstract]

Summary of Company's Investment Securities

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

- Definition

Tabular disclosure of the realized and unrealized gains and losses reported in the statement of income which have resulted from the sale and holding of marketable securities, respectively, as well as the sale or disposal of cost method investments. Such amounts would include realized gains and losses on the sale or disposal of trading, available-for-sale, and held-to-maturity securities, unrealized gains and losses on trading securities, unrealized gains and losses on available-for-sale and held-to-maturity securities transferred to the trading securities category, realized gains and losses on the sale or disposal of cost method investments, and losses recognized for other than temporary impairments (OTTI) of such investments.

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