Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements (Fair Value Of Assets And Liabilities) (Details)

v2.4.0.6
Fair Value Measurements (Fair Value Of Assets And Liabilities) (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2013
Dec. 31, 2012
Mar. 31, 2012
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]      
Term loan, carrying value $ 250,000 $ 250,000 $ 0
Term loan, fair value   250,000 0
Senior notes, carrying value 0 0 240,000
Level 1 [Member]
     
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]      
Term loan, fair value 0 0 0
Senior notes, fair value     260,712
Level 2 [Member]
     
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]      
Term loan, fair value 250,000 250,000 0
Senior notes, fair value     0
Level 3 [Member]
     
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]      
Term loan, fair value 0 0 0
Senior notes, fair value     $ 0