GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)

12 Months Ended

Dec. 31, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

The changes in the carrying amount of goodwill since January 1, 2014, by reportable segment, were as follows:



In thousands
	United States			International			Total
Balance at January 1, 2014	$	1,673,810		$	557,772		$	2,231,582
Goodwill acquired during year	169,754			88,263			258,017
Purchase accounting allocation adjustments	(4,825		)	(17,595		)	(22,420		)
Changes due to foreign currency fluctuations	—			(48,347		)	(48,347		)
Balance at December 31, 2014	1,838,739			580,093			2,418,832
Goodwill acquired during year	1,177,431			273,519			1,450,950
Purchase accounting allocation adjustments	(43,895		)	15,618			(28,277		)
Goodwill other changes	—			(440		)	(440		)
Changes due to foreign currency fluctuations	—			(82,888		)	(82,888		)
Balance at December 31, 2015	$	2,972,275		$	785,902		$	3,758,177

Values of Intangible Assets

At December 31, 2015 and 2014, the values of other intangible assets were as follows:



In thousands
	2015						2014
	Gross Carrying Amount		Accumulated Amortization		Net Value		Gross Carrying Amount		Accumulated Amortization		Net Value
Amortizable intangibles:
Customer relationships	$	1,304,388	$	144,020	$	1,160,368	$	755,148	$	107,365	$	647,783
Covenants not-to-compete	6,878		5,141		1,737		8,474		5,688		2,786
Tradenames	3,819		948		2,871		6,062		1,313		4,749
Other	18,902		916		17,986		1,150		556		594
Indefinite lived intangibles:
Operating permits	233,101		—		233,101		247,933		—		247,933
Tradenames	426,498		—		426,498		5,800		—		5,800
Total	$	1,993,586	$	151,025	$	1,842,561	$	1,024,567	$	114,922	$	909,645

Schedule of Finite-Lived Intangible Assets

The changes in the carrying amount of intangible assets since January 1, 2014 were as follows:



In thousands
	Total
Balance as of January 1, 2014	$	720,035
Intangible assets acquired during the year	277,041
Impairments during the year	(9,863		)
Amortization during the year	(32,692		)
Changes due to foreign currency fluctuations	(44,876		)
Balance as of December 31, 2014	909,645
Intangible assets acquired during the year	1,052,016
Impairments during the year	(4,177		)
Amortization during the year	(45,498		)
Changes due to foreign currency fluctuations	(69,425		)
Balance at December 31, 2015	$	1,842,561

Schedule of Indefinite-Lived Intangible Assets

The changes in the carrying amount of intangible assets since January 1, 2014 were as follows:



In thousands
	Total
Balance as of January 1, 2014	$	720,035
Intangible assets acquired during the year	277,041
Impairments during the year	(9,863		)
Amortization during the year	(32,692		)
Changes due to foreign currency fluctuations	(44,876		)
Balance as of December 31, 2014	909,645
Intangible assets acquired during the year	1,052,016
Impairments during the year	(4,177		)
Amortization during the year	(45,498		)
Changes due to foreign currency fluctuations	(69,425		)
Balance at December 31, 2015	$	1,842,561

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
2016	$	72,174
2017	71,507
2018	71,459
2019	71,302
2020	71,012