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Income Taxes (Tables)
 3 Months Ended
Mar. 31, 2013
Income Tax Disclosure [Abstract]  
Income tax (provisions) benefits attributable to income from continuing operations
The Company's income tax provisions attributable to income from continuing operations consisted of the following for the three months ended March 31, 2013 and 2012:
 
 
Three Months Ended
March 31,
 
 
2013
 
2012
 
 
(in thousands)
Current
 
$
(7,435
)
 
$
(11,832
)
Deferred
 
(51,894
)
 
(105,871
)
Income tax provision
 
$
(59,329
)
 
$
(117,703
)