Goodwill and Other Intangibles Assets (Tables)

6 Months Ended

Jun. 30, 2012

Goodwill and Other Intangible Assets [Abstract]

Schedule of Goodwill [Table Text Block]

Balance as of December 31, 2011	$	4,264,845
Goodwill acquired as part of acquisitions during 2012		106,189
Consideration adjustments and purchase price allocation
adjustments for prior year’s acquisitions		1,959
Balance as of June 30, 2012	$	4,372,993