Intangibles (Tables)

3 Months Ended

Mar. 31, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Change in the Carrying Amount of Goodwill by Segment

The change in the carrying amount of goodwill by segment for the three months ended months ended March 31, 2017 is as follows:

In thousands	Freight Segment		Transit Segment		Total
Balance at December 31, 2016	$	550,902	$	1,527,863	$	2,078,765
Adjustment to preliminary purchase allocation	2,260		48,687		50,947
Acquisitions	35,165		—		35,165
Foreign currency impact	3,343		20,283		23,626
Balance at March 31, 2017	$	591,670	$	1,596,833	$	2,188,503

Intangible Assets of the Company, Other Than Goodwill and Trade Names

Intangible assets of the Company, other than goodwill and trade names, consist of the following:

In thousands	March 31, 2017		December 31, 2016
Patents, non-compete and other intangibles, net of accumulated
amortization of $43,280 and $42,538	$	13,071	$	15,360
Customer relationships, net of accumulated amortization
of $95,984 and $87,334	550,317		528,068
Total	$	563,388	$	543,428

Amortization Expense

Amortization expense for the five succeeding years is estimated to be as follows:

Remainder of 2017	$	25,308
2018	33,328
2019	32,284
2020	30,762
2021	30,774