Quarterly report pursuant to Section 13 or 15(d)

Other Long-term Debt (Details)

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Other Long-term Debt (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2013
Dec. 31, 2012
Debt Instrument [Line Items]    
Debt Instrument, Carrying Amount $ 312,894  
Other Long-term Debt $ 156,301 $ 158,784