Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Fair Value, by Balance Sheet (Details)

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Fair Value Measurements - Fair Value, by Balance Sheet (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2013
Dec. 31, 2012
Carrying (Reported) Amount, Fair Value Disclosure [Member]
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Other Assets $ 0 $ 0
Notes Payable 11,092 0
Estimate of Fair Value, Fair Value Disclosure
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Other Assets 0 0
Notes Payable $ 10,200 $ 0