v2.4.0.6
Income Taxes (Unrecognized Income Tax Benefits) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Income Taxes [Abstract]      
Unrecognized tax benefits beginning balance $ 2,376 $ 1,198 $ 240
Increase related to tax positions of prior years 1 121 29
Increase related to acquired tax positions recorded through purchase accounting 1 997 864
Increase related to tax positions of the current year 17 60 65
Decrease related to tax positions of prior years (959) 0 0
Decrease due to settlements (42) 0 0
Decrease due to lapse in statutes of limitations (8)    
Unrecognized tax benefits ending balance $ 1,386 $ 2,376 $ 1,198