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Uncertain Tax Positions (Tables)
9 Months Ended
Sep. 30, 2012
Uncertain Tax Positions [Abstract]  
Reconciliation of unrecognized tax benefits
As of December 31, 2011, the Company had approximately $2.1 million of total gross unrecognized tax benefits that if recognized, would favorably affect the net effective income tax rate in any future period.  As of September 30, 2012, the Company had approximately $3.5 million of total gross unrecognized tax benefits.  Of this total, $1.5 million represents the amount of unrecognized tax benefits that, if recognized, would favorably affect the net effective income tax rate in any future period.  A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows (in thousands of dollars):

(Thousands of dollars)
 
 
 
 
 
 
Balance at January 1, 2012
 
$
2,060
 
 
 
 
 
Gross increases- current year tax positions
 
 
1,974
 
Gross increases- tax positions from prior periods
 
 
4
 
Gross decreases - tax positions from prior periods
 
 
(581
)
 
 
 
 
Balance at September 30, 2012
 
$
3,457