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Income Taxes (Tables)
9 Months Ended
Sep. 30, 2013
Income Tax Disclosure [Abstract]  
Schedule Of Interest And Penalties
 
September 30, 2013
 
December 31, 2012
Gross liability for unrecognized tax benefits, exclusive of interest and penalties
$
12,731

 
$
11,553

Interest and penalties on unrecognized benefits
957

 
770

Total gross uncertain tax positions
$
13,688

 
$
12,323

Amount included in Current liabilities
$
4,985

 
$
5,291

Amount included in Other long-term liabilities
8,703

 
7,032

 
$
13,688

 
$
12,323