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Fair Value Measurements
3 Months Ended
Aug. 31, 2014
Fair Value Disclosures [Abstract]  
Fair Value Measurements
Fair Value Measurements
We measure certain financial assets and liabilities at fair value on a recurring basis, including SERP assets and foreign currency derivatives. The fair value of financial assets can be determined based on three levels of inputs, of which the first two are considered observable and the last unobservable, that may be used to measure fair value, as follows:
Level 1 – Observable inputs, such as quoted prices in active markets for identical assets;
Level 2 – Inputs, other than the quoted prices in active markets, that are observable either directly or through corroboration with observable market data; and
Level 3 – Unobservable inputs, for which there is little or no market data for the assets, such as those that may be used with internally-developed valuation models.
Our assets measured at fair value on a recurring basis were determined as follows:
 
  
August 31, 2014
 
Quoted
Prices in
Active
Markets for
Identical
Instruments
(Level 1)
 
Significant
Other
Observable
Inputs
(Level 2)
 
Significant
Unobservable
Inputs
(Level 3)
 
Total
Balance
Assets
 
 
 
 
 
 
 
SERP
 
 
 
 
 
 
 
Money market fund
$
150

 
$

 
$

 
$
150

Mutual funds
3,360

 

 

 
3,360

Foreign exchange forward contracts

 
125

 

 
125

Total assets measured at fair value
$
3,510

 
$
125

 
$

 
$
3,635


  
May 31, 2014
 
Quoted
Prices in
Active
Markets for
Identical
Instruments
(Level 1)
 
Significant
Other
Observable
Inputs
(Level 2)
 
Significant
Unobservable
Inputs
(Level 3)
 
Total
Balance
Assets
 
 
 
 
 
 
 
SERP
 
 
 
 
 
 
 
Money market fund
$
323

 
$

 
$

 
$
323

Mutual funds
3,095

 

 

 
3,095

Foreign exchange forward contracts

 
9

 

 
9

Total assets measured at fair value
$
3,418

 
$
9

 
$

 
$
3,427


The fair value measures for our SERP asset, which include money market and mutual funds, were derived from quoted market prices in active markets and are included in Level 1 inputs. Foreign currency forward contracts were valued based on observable market spot and forward rates as of our reporting date and are included in Level 2 inputs.