Annual report pursuant to Section 13 and 15(d)

Income Taxes (Schedule Of Net Deferred Tax Liability) (Details)

v2.4.0.6
Income Taxes (Schedule Of Net Deferred Tax Liability) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2011
Dec. 31, 2010
Income Taxes [Abstract]    
Current deferred tax asset $ 19,466 $ 18,666
Noncurrent deferred tax liability (134,916) (90,768)
Net deferred tax liability $ (115,450) $ (72,102)