Goodwill and Other Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

Changes in the carrying amount of goodwill during the nine months ended September 30, 2021 are summarized as follows:

	Expedited Freight		Intermodal		Consolidated
Balance as of December 31, 2020	$	165,268	$	79,714	$	244,982
Acquisitions	3,545		6,249		9,794
Balance as of September 30, 2021	$	168,813	$	85,963	$	254,776

Schedule of Other Intangible Assets

Changes in the carrying amount of acquired intangible assets during the nine months ended September 30, 2021 are summarized as follows:

	Gross Carrying Amount
	Customer Relationships1		Non-Compete Agreements		Trade Names		Total
Balance as of December 31, 2020	$	228,416	$	8,125	$	1,500	$	238,041
Acquisitions	7,640		150		—		7,790
Balance as of September 30, 2021	$	236,056	$	8,275	$	1,500	$	245,831

	Accumulated Amortization
	Customer Relationships1		Non-Compete Agreements		Trade Names		Total
Balance as of December 31, 2020	$	85,930	$	5,579	$	1,500	$	93,009
Amortization expense	9,652		974		—		10,626
Balance as of September 30, 2021	$	95,582	$	6,553	$	1,500	$	103,635

1 Carrying value as of September 30, 2021 and December 31, 2020 is inclusive of $16,501 of accumulated impairment.