Goodwill And Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2011

Goodwill And Intangible Assets

Changes In Carrying Amount Of Goodwill

		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2011		2010		2011		2010
Balance, beginning of period		$	964,970	$	859,759	$	894,497	$	813,876
Goodwill acquired, including post acquisition adjustments			186,735		14,053		261,975		59,936
Disposals			-		(15)		(4,767)		(15)
	Balance, end of period	$	1,151,705	$	873,797	$	1,151,705	$	873,797

Summary Of Amortizable Intangible Assets

			September 30, 2011						December 31, 2010
			Gross						Gross
			Carrying		Accumulated				Carrying		Accumulated
			Amount		Amortization		Net		Amount		Amortization		Net
Deferred financing cost			$	6,519	$	(1,480)	$	5,039	$	4,516	$	(567)	$	3,949
Customer and non-compete
	agreements			3,180		(1,968)		1,212		3,180		(1,818)		1,362
		Total amortizable intangible assets	$	9,699	$	(3,448)	$	6,251	$	7,696	$	(2,385)	$	5,311