GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)

3 Months Ended

Mar. 31, 2013

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in Carrying Amount of Goodwill

The changes in the carrying amount of goodwill since December 31, 2011, by reportable segment, were as follows:

In thousands
	United States			International			Total
Balance as of December 31, 2011	$	1,506,416		$	407,287		$	1,913,703
Goodwill acquired during year	114,931			62,145			177,076
Goodwill allocation adjustments	(5,061		)	(24,859		)	(29,920		)
Sale of business	—			(1,178		)	(1,178		)
Changes due to currency fluctuation	—			5,422			5,422
Balance as of December 31, 2012	1,616,286			448,817			2,065,103
Goodwill acquired during year	—			16,514			16,514
Goodwill allocation adjustments	1,202			719			1,921
Changes due to currency fluctuation	—			(17,693		)	(17,693		)
Balance as of March 31, 2013	$	1,617,488		$	448,357		$	2,065,845

Values of Intangible Assets

As of March 31, 2013 and December 31, 2012, the values of the intangible assets were as follows:

In thousands
	March 31, 2013						December 31, 2012
	Gross Carrying Amount		Accumulated Amortization		Net Value		Gross Carrying Amount		Accumulated Amortization		Net Value
Amortizable intangibles:
Covenants not-to-compete	$	9,962	$	5,157	$	4,805	$	10,993	$	5,843	$	5,150
Customer relationships	606,925		62,655		544,270		602,095		57,236		544,859
Tradenames	4,855		776		4,079		4,922		712		4,210
License agreements	611		338		273		720		420		300
Other	83		6		77		89		4		85
Indefinite lived intangibles:
Operating permits	111,178		—		111,178		112,867		—		112,867
Total	$	733,614	$	68,932	$	664,682	$	731,686	$	64,215	$	667,471

Estimated Amortization Expense

The estimated amortization expense for each of the next five years, assuming no additional amortizable intangible assets, is as follows for the years ended December 31:

In thousands
2013	$	26,141
2014	25,992
2015	25,751
2016	25,547
2017	25,386