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DERIVATIVE FINANCIAL INSTRUMENTS - Financial instruments measured at fair value on a recurring basis (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2012 | Dec. 31, 2011
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Level 1 |  |
Derivative financial instruments |  |
Derivative financial assets |  |
Derivative financial liability |  |
Level 1 | Foreign currency contracts |  |
Derivative financial instruments |  |
Derivative financial assets |  |
Derivative financial liability |  |
Level 2 |  |
Derivative financial instruments |  |
Derivative financial assets | 326 | 43
Derivative financial liability | 326 |
Level 2 | Foreign currency contracts |  |
Derivative financial instruments |  |
Derivative financial assets | 326 | 43
Derivative financial liability | 326 |
Level 3 |  |
Derivative financial instruments |  |
Derivative financial assets |  |
Derivative financial liability |  |
Level 3 | Foreign currency contracts |  |
Derivative financial instruments |  |
Derivative financial assets |  |
Derivative financial liability |  |
Total |  |
Derivative financial instruments |  |
Derivative financial assets | 326 | 43
Derivative financial liability | 326 |
Total | Foreign currency contracts |  |
Derivative financial instruments |  |
Derivative financial assets | 326 | 43
Derivative financial liability | $ 326 |

X
- Definition This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value on a recurring basis by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. + References No definition available. + Details
Name: | us-gaap_AssetsFairValueDisclosureRecurring
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Aggregation of the liabilities reported on the balance sheet measured at fair value on a recurring basis by the entity. + References No definition available. + Details
Name: | us-gaap_LiabilitiesFairValueDisclosureRecurring
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant