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Income Taxes (Tables)
6 Months Ended
Jun. 30, 2016
Income Tax Disclosure [Abstract]  
Schedule Of Interest And Penalties
 
June 30, 2016
 
December 31, 2015
Gross liability for unrecognized tax benefits, exclusive of interest and penalties
$
15,328

 
$
14,517

Interest and penalties on unrecognized benefits
1,437

 
1,391

Total gross uncertain tax positions
$
16,765

 
$
15,908

Amount included in Current liabilities
$
4,503

 
$
4,511

Amount included in Other long-term liabilities
12,262

 
11,397

 
$
16,765

 
$
15,908