FAIR VALUE MEASUREMENTS (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Assets:
Total	$ 10,151	$ 62,438
Foreign currency derivative assets	681	940
Liabilities:
Foreign Currency Derivative Liabilities	128	217
Fair Value, Assets and Liabilities, Level 3	0	0
Quoted Prices In Active Markets (Level 1) [Member]
Assets:
Total	0	105
Foreign currency derivative assets	0	0
Liabilities:
Foreign Currency Derivative Liabilities	0	0
Significant Other Observable Inputs (Level 2) [Member]
Assets:
Total	10,151	62,333
Foreign currency derivative assets	681	940
Liabilities:
Foreign Currency Derivative Liabilities	128	217
U.S. Government Obligations and Agency Securities [Member]
Assets:
Total	7,352	19,598
U.S. Government Obligations and Agency Securities [Member] | Quoted Prices In Active Markets (Level 1) [Member]
Assets:
Total	0	0
U.S. Government Obligations and Agency Securities [Member] | Significant Other Observable Inputs (Level 2) [Member]
Assets:
Total	7,352	19,598
U.S. corporate debt [Member]
Assets:
Total	667	25,100
U.S. corporate debt [Member] | Quoted Prices In Active Markets (Level 1) [Member]
Assets:
Total	0	0
U.S. corporate debt [Member] | Significant Other Observable Inputs (Level 2) [Member]
Assets:
Total	667	25,100
Foreign Government Obligations and Agency Securities [Member]
Assets:
Total		2,810
Foreign Government Obligations and Agency Securities [Member] | Quoted Prices In Active Markets (Level 1) [Member]
Assets:
Total		0
Foreign Government Obligations and Agency Securities [Member] | Significant Other Observable Inputs (Level 2) [Member]
Assets:
Total		2,810
Foreign Corporate Debt and Equity Securities [Member]
Assets:
Total	2,132	14,930
Foreign Corporate Debt and Equity Securities [Member] | Quoted Prices In Active Markets (Level 1) [Member]
Assets:
Total	0	105
Foreign Corporate Debt and Equity Securities [Member] | Significant Other Observable Inputs (Level 2) [Member]
Assets:
Total	$ 2,132	$ 14,825