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