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Organization and Summary of Significant Accounting Policies (Details 5) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Assets and (Liabilities) at Fair Value
Derivatives	$ (1,690)	$ (12,341)
Recurring \| Total
Assets and (Liabilities) at Fair Value
Derivatives	(1,690)	(12,341)
Total	(1,690)	(12,341)
Recurring \| Level 2
Assets and (Liabilities) at Fair Value
Derivatives	(1,690)	(12,341)
Total	$ (1,690)	$ (12,341)

Fair values as of the balance sheet date of the net amount of all assets and liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments.

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- 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