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
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