Fair Value Measurements

12 Months Ended

May 31, 2016

Fair Value Measurements [Abstract]

Fair Value Measurements

Note G — Fair Value Measurements

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability (an exit price) in an orderly transaction between market participants at the measurement date. The accounting standards related to fair value measurements include a hierarchy for information and valuations used in measuring fair value that is broken down into three levels based on reliability, as follows:

· Level 1 valuations are based on quoted prices in active markets for identical instruments that the Company can access at the measurement date.

· Level 2 valuations are based on inputs other than quoted prices included in Level 1 that are observable for the instrument, either directly or indirectly, for substantially the full term of the asset or liability including the following:

o quoted prices for similar, but not identical, instruments in active markets;

o quoted prices for identical or similar instruments in markets that are not active;

o inputs other than quoted prices that are observable for the instrument; or

o inputs that are derived principally from or corroborated by observable market data by correlation or other means.

· Level 3 valuations are based on information that is unobservable and significant to the overall fair value measurement.

The carrying values of cash and cash equivalents, accounts receivable, net of allowance for doubtful accounts, and accounts payable approximate fair value due to the short maturities of these instruments. Marketable securities included in funds held for clients and corporate investments consist primarily of securities classified as available-for-sale and are recorded at fair value on a recurring basis.

The Company’s financial assets and liabilities measured at fair value on a recurring basis were as follows:

	May 31, 2016
			Quoted		Significant
			prices in		other		Significant
	Carrying		active		observable		unobservable
	value		markets		inputs		inputs
In millions	(Fair value)		(Level 1)		(Level 2)		(Level 3)
Assets:
Available-for-sale securities:
Corporate bonds	$	131.2	$	—	$	131.2	$	—
General obligation municipal bonds		1,621.6		—		1,621.6		—
Pre-refunded municipal bonds		61.6		—		61.6		—
Revenue municipal bonds		931.8		—		931.8		—
U.S. government agency securities		161.1		—		161.1		—
Variable rate demand notes		1,234.6		—		1,234.6		—
Total available-for-sale securities	$	4,141.9	$	—	$	4,141.9	$	—
Other	$	14.9	$	14.9	$	—	$	—
Liabilities:
Other long-term liabilities	$	14.9	$	14.9	$	—	$	—

	May 31, 2015
			Quoted		Significant
			prices in		other		Significant
	Carrying		active		observable		unobservable
	value		markets		inputs		inputs
In millions	(Fair value)		(Level 1)		(Level 2)		(Level 3)
Assets:
Cash equivalents:
Commercial paper	$	15.0	$	—	$	15.0	$	—
General obligation municipal bonds		55.1		—		55.1		—
Pre-refunded municipal bonds		20.5		—		20.5		—
Revenue municipal bonds		12.3		—		12.3		—
Money market securities		0.2		0.2		—		—
Total cash equivalents	$	103.1	$	0.2	$	102.9	$	—
Available-for-sale securities:
General obligation municipal bonds	$	1,703.7	$	—	$	1,703.7	$	—
Pre-refunded municipal bonds		102.7		—		102.7		—
Revenue municipal bonds		963.6		—		963.6		—
Variable rate demand notes		825.6		—		825.6		—
Total available-for-sale securities	$	3,595.6	$	—	$	3,595.6	$	—
Other	$	14.2	$	14.2	$	—	$	—
Liabilities:
Other long-term liabilities	$	14.2	$	14.2	$	—	$	—

In determining the fair value of its assets and liabilities, the Company predominately uses the market approach.  Money market securities, which are cash equivalents, are valued based on quoted market prices in active markets.  Time deposits are considered Level 1 investments as they are highly liquid and have a short maturity period, usually no longer than overnight.  Commercial paper is included in Level 2 because it may not trade on a daily basis.  Available-for-sale securities, including municipal bonds, corporate bonds, and U.S. government agency securities, and short-term municipal bonds and short-term U.S. government agency securities with a maturity of less than 90 days included in Level 2 are valued utilizing inputs obtained from an independent pricing service. To determine the fair value of the Company’s Level 2 available-for-sale securities, a variety of inputs are utilized, including benchmark yields, reported trades, non-binding broker/dealer quotes, issuer spreads, two-sided markets, benchmark securities, bids, offers, reference data, new issue data, and monthly payment information. The Company has not adjusted the prices obtained from the independent pricing service because it believes that they are appropriately valued.

Assets included as other are mutual fund investments, consisting of participants’ eligible deferral contributions under the Company’s non-qualified and unfunded deferred compensation plans. The related liability is reported as other long-term liabilities. The mutual funds are valued based on quoted market prices in active markets.

The preceding methods described may produce a fair value calculation that may not be indicative of net realizable value or reflective of future fair values. Furthermore, although the Company believes its valuation methods are appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different fair value measurement at the reporting date.