XML 71 R57.htm IDEA: XBRL DOCUMENT v3.3.1.900
Note 8 - Carrying Amount of Goodwill (Details) - USD ($)
 3 Months Ended 12 Months Ended
Dec. 31, 2015
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Balance at $ 1,177,523,000 $ 1,177,523,000 $ 1,138,758,000 $ 1,111,480,000
Balance at (507,804,000) (507,804,000) (503,193,000) (503,193,000)
Goodwill 669,719,000 669,719,000 635,565,000 $ 608,287,000
Acquisitions of businesses, net   38,765,000 27,278,000  
Acquisitions of businesses, net   0 0  
Acquisitions of businesses, net   38,765,000 $ 27,278,000  
Impairment $ (4,611,000) $ (4,611,000)