XML 33 R36.htm IDEA: XBRL DOCUMENT v2.4.0.6
Income Taxes (Details) (USD $)
In Thousands, unless otherwise specified
9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Dec. 31, 2011
Income Tax Disclosure [Abstract]      
Reversal of uncertain tax positions $ 1,421 $ 967  
Liability for uncertain tax positions 1,955   3,105
Estimated decrease in total gross unrecogized tax benefits as a result of resolutions of global tax examinations and expiration of applicable statutes of limitations, including interest and penalties $ 390