Fair Value Measurements (Details) (USD $)
In Thousands, unless otherwise specified |
May 31, 2013
|
May 31, 2012
|
---|---|---|
Liabilities: | ||
Contingent consideration | $ 5,144 | $ 2,371 |
Recurring basis | Level 3
|
||
Liabilities: | ||
Contingent consideration | 15,438 | 13,513 |
Total Liabilities | 15,438 | 13,513 |
Recurring basis | Total
|
||
Liabilities: | ||
Contingent consideration | 15,438 | 13,513 |
Total Liabilities | $ 15,438 | $ 13,513 |