Goodwill and Other Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

The following table presents the changes in goodwill balance by reportable segment for the period presented:

	Rail Technologies and Services		Infrastructure Solutions		Total
Balance as of December 31, 2020	$	14,743	$	5,597	$	20,340
Foreign currency translation impact	88		—		88
Balance as of June 30, 2021	$	14,831	$	5,597	$	20,428

Schedule of Intangible Assets

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

	June 30, 2021
	Weighted Average Amortization Period In Years	Gross Carrying Value		Accumulated Amortization		Net Carrying Amount
Patents	10	394		(220)		174
Customer relationships	18	36,402		(17,190)		19,212
Trademarks and trade names	16	7,820		(4,428)		3,392
Technology	13	35,841		(24,581)		11,260
		$	80,457	$	(46,419)	$	34,038
	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 June 30, 2021, estimated amortization expense for the remainder of 2021 and thereafter was as follows:

	Amortization Expense
Remainder of 2021	$	2,925
2022	5,786
2023	5,315
2024	4,324
2025	2,462
2026 and thereafter	13,226
	$	34,038