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Goodwill and Intangible Assets, Net
6 Months Ended
Jun. 30, 2023
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Intangible Assets, Net GOODWILL AND INTANGIBLE ASSETS, NET
The changes in the carrying value of goodwill balances by reportable segment were as follows:
U.S. RegionsU.S. FederalCanadaAlternative FuelsOtherTotal
Carrying Value of Goodwill
Balance, December 31, 2022$39,593 $3,981 $3,236 $— $23,823 $70,633 
Goodwill acquired during the year— — — 6,855 6,855 
Currency effects— — 74 — 284 358 
Balance, June 30, 2023$39,593 $3,981 $3,310 $— $30,962 $77,846 
Definite-lived intangible assets, net consisted of the following:
As of June 30, 2023As of December 31, 2022
Gross carrying amount$37,050 32,277 
Less - accumulated amortization(28,908)(27,584)
Intangible assets, net$8,142 $4,693 
The table below sets forth amortization expense:
Three Months Ended June 30,Six Months Ended June 30,
Asset typeLocation2023202220232022
Customer contractsCost of revenues$— $137 $— $321 
All other intangible assetsSelling, general and administrative expenses689 305 991 699 
Total amortization expense$689 $442 $991 $1,020