FAIR VALUE MEASUREMENTS (Details 4) (USD $)
In Thousands, unless otherwise specified |
Mar. 31, 2014
|
Dec. 31, 2013
|
---|---|---|
Liabilities | ||
Derivatives | $ 143 | $ 367 |
Recurring basis | Level 1
|
||
Assets | ||
Total | 4,247 | 8,079 |
Recurring basis | Level 1 | Money market funds
|
||
Assets | ||
Total | 4,247 | 8,079 |
Recurring basis | Level 2
|
||
Assets | ||
Total | 145,920 | 54,440 |
Recurring basis | Level 2 | Government-sponsored enterprise securities
|
||
Assets | ||
Total | 6,328 | 7,369 |
Recurring basis | Level 2 | Commercial paper
|
||
Assets | ||
Total | 9,498 | 5,499 |
Recurring basis | Level 2 | Corporate notes
|
||
Assets | ||
Total | 130,094 | 41,572 |
Recurring basis | Level 3
|
||
Liabilities | ||
Derivatives | 143 | 367 |
Recurring basis | Total
|
||
Assets | ||
Total | 150,167 | 62,519 |
Liabilities | ||
Derivatives | 143 | 367 |
Recurring basis | Total | Money market funds
|
||
Assets | ||
Total | 4,247 | 8,079 |
Recurring basis | Total | Government-sponsored enterprise securities
|
||
Assets | ||
Total | 6,328 | 7,369 |
Recurring basis | Total | Commercial paper
|
||
Assets | ||
Total | 9,498 | 5,499 |
Recurring basis | Total | Corporate notes
|
||
Assets | ||
Total | $ 130,094 | $ 41,572 |