Goodwill and Other Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

The following table presents the goodwill balance by reportable segment:

	Rail Technologies and Services		Infrastructure Solutions		Total
Balance as of December 31, 2020	$	14,743	$	5,597	$	20,340
Foreign currency translation impact	33		—		33
Balance as of March 31, 2021	$	14,776	$	5,597	$	20,373

Schedule of Intangible Assets

The components of the Company’s intangible assets were as follows for the periods presented:

	March 31, 2021
	Weighted Average Amortization Period In Years	Gross Carrying Value		Accumulated Amortization		Net Carrying Amount
Patents	10	389		(213)		176
Customer relationships	18	36,353		(16,568)		19,785
Trademarks and trade names	16	7,816		(4,283)		3,533
Technology	13	35,826		(23,843)		11,983
		$	80,384	$	(44,907)	$	35,477
	December 31, 2020
	Weighted Average Amortization Period In Years	Gross Carrying Value		Accumulated Amortization		Net Carrying Amount
Patents	10	383		(206)		177
Customer relationships	18	36,269		(15,914)		20,355
Trademarks and trade names	16	7,809		(4,135)		3,674
Technology	13	35,815		(23,124)		12,691
		$	80,276	$	(43,379)	$	36,897

Estimated Future Amortization

As of March 31, 2021, estimated amortization expense for the remainder of 2021 and thereafter was as follows:

	Amortization Expense
Remainder of 2021	$	4,393
2022	5,779
2023	5,308
2024	4,317
2025	2,453
2026 and thereafter	13,227
	$	35,477