XML 34 R44.htm IDEA: XBRL DOCUMENT v2.4.0.6
Income Taxes (Details) (USD $)
 3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Dec. 31, 2011
Income Taxes (Textual) [Abstract]          
Income tax expense benefit $ 300,000 $ 1,100,000 $ 1,000,000 $ 2,500,000  
Effective tax rate 3.00% 16.00% 7.00% 43.00%  
Recorded tax benefit for domestic operating losses     0    
Unrecognized tax benefits 4,300,000   4,300,000   4,300,000
Interest 200,000   200,000    
Penalties 100,000   100,000    
Decrease in unrecognized tax benefits     1,600,000    
Tax benefit impacting annual effective rate $ 4,200,000   $ 4,200,000