Quarterly report pursuant to Section 13 or 15(d)

Fair Value Fair Value of Financial Instruments (Details)

v2.4.0.6
Fair Value Fair Value of Financial Instruments (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2012
Dec. 31, 2011
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Securities Sold under Agreements to Repuchase, Long-term $ 280,000 $ 50,000