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Fair Value Measurements
3 Months Ended
Jun. 30, 2017
Fair Value Measurements [Abstract]  
Fair Value Measurements
Note 3: Fair Value Measurements

Fair value is defined as the price that would be received for an asset or paid to transfer a liability in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants. Fair value measurements are classified under the following hierarchy:

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Level 1 – Quoted prices for identical instruments in active markets.
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Level 2 – Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations in which all significant inputs are observable in active markets.
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Level 3 – Model-derived valuations in which one or more significant inputs are not observable.

When available, the Company uses quoted market prices to determine fair value and classifies such measurements as Level 1.  In some cases, where market prices are not available, the Company uses observable market-based inputs to calculate fair value, in which case the measurements are classified as Level 2.  If quoted or observable market prices are not available, the Company determines fair value based upon valuation models that use, where possible, market-based data such as interest rates, yield curves or currency rates. These measurements are classified as Level 3.

The carrying values of cash and cash equivalents, short-term investments, trade accounts receivable, accounts payable, and short-term debt approximate fair value due to the short-term nature of these instruments. The Company holds trading securities in deferred compensation trusts to fund obligations under certain non-qualified deferred compensation plans. The securities’ fair values, which are recorded as other noncurrent assets, are determined based upon quoted prices from active markets and classified within Level 1 of the valuation hierarchy. The Company’s deferred compensation obligations, which are recorded as other noncurrent liabilities, are recorded at the fair values of the investments held by the trusts.  The fair values of the Company’s trading securities and deferred compensation obligations each totaled $5.3 million and $5.0 million at June 30, 2017 and March 31, 2017, respectively.  The fair value of the Company’s long-term debt is disclosed in Note 14.