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Income Taxes (Tables)
3 Months Ended
Mar. 31, 2013
Income Tax Uncertainties [Abstract]  
Schedule Of Interest And Penalties
 
March 31, 2013

 
December 31, 2012
Gross liability for unrecognized tax benefits, exclusive of interest and penalties
$
11,887

 
$
11,553

Interest and penalties on unrecognized benefits
822

 
770

Total gross uncertain tax positions
$
12,709

 
$
12,323

Amount included in Current liabilities
$
5,309

 
$
5,291

Amount included in Other long-term liabilities
7,400

 
7,032

 
$
12,709

 
$
12,323