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FAIR VALUE MEASUREMENTS (Details 3) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Quantitative Information about Level 3 Measurements
Derivative assets	$ 8,306	$ 21,258
Derivative liabilities	3,936	867
Level 3 \| Derivative liabilities \| Discounted cash flow
Quantitative Information about Level 3 Measurements
Derivative liabilities	3,936
Level 3 \| Derivative assets \| Discounted cash flow
Quantitative Information about Level 3 Measurements
Derivative assets	$ 8,306

Fair values as of the balance sheet date of all assets resulting from contracts that meet the criteria of being accounted for as derivative instruments, net of the effects of master netting arrangements.

+ References+ Details

- Definition

Fair values as of the balance sheet date of all liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments, net of the effects of master netting arrangements.

+ References+ Details