Annual report pursuant to Section 13 and 15(d)

Valuation And Qualifying Accounts (Details)

v2.4.0.6
Valuation And Qualifying Accounts (Details) (Valuation Allowance of Deferred Tax Assets [Member], USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Valuation Allowance of Deferred Tax Assets [Member]
     
Movement in Valuation Allowances and Reserves [Roll Forward]      
Beginning Balance $ 15,425 $ 18,228 $ 13,463
Additions 2,338 3,398 5,163
Deductions (2,320) (6,201) (398)
Ending Balance $ 15,443 $ 15,425 $ 18,228