GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)

9 Months Ended

Sep. 30, 2013

Goodwill and Intangible Assets Disclosure [Abstract]

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	58,260			90,620			148,880
Goodwill allocation adjustments	4,515			87			4,602
Changes due to currency fluctuation	—			(10,740		)	(10,740		)
Balance as of September 30, 2013	$	1,679,061		$	528,784		$	2,207,845

Values of Intangible Assets

As of September 30, 2013 and December 31, 2012, the values of the intangible assets were as follows:



In thousands
	September 30, 2013						December 31, 2012
	Gross Carrying Amount		Accumulated Amortization		Net Value		Gross Carrying Amount		Accumulated Amortization		Net Value
Amortizable intangibles:
Covenants not-to-compete	$	10,189	$	5,945	$	4,244	$	10,993	$	5,843	$	5,150
Customer relationships	664,295		74,893		589,402		602,095		57,236		544,859
Tradenames	5,058		941		4,117		4,922		712		4,210
License agreements	611		390		221		720		420		300
Other	89		11		78		89		4		85
Indefinite lived intangibles:
Operating permits	116,949		—		116,949		112,867		—		112,867
Tradenames	5,800		—		5,800		—		—		—
Total	$	802,991	$	82,180	$	720,811	$	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	$	26,483
2014	28,295
2015	27,964
2016	27,837
2017	27,593