| Schedule of changes in intangible assets |
| | | | | | Intangible | | | Assets | Balance at December 31, 2018 | | $ | 19,152 | Measurement period adjustments for acquisition of Elauwit | | | (48) | Reclassification of assets held for sale, net | | | 407 | Amortization expense | | | (4,571) | Balance, December 31, 2019 | | | 14,940 | Amortization expense | | | (4,288) | Balance, December 31, 2020 | | $ | 10,652 |
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| Schedule of intangible assets |
Intangible assets at December 31, 2020 consist of the following: | | | | | | | | | | | | Historical | | Accumulated | | | | | Cost | | Amortization | | Net | Venue contracts | | $ | 19,710 | | $ | (16,030) | | $ | 3,680 | Backlog | | | 7,388 | | | (3,578) | | | 3,810 | Customer and partner relationships | | | 3,780 | | | (962) | | | 2,818 | Non-compete agreements, technology and other | | | 2,134 | | | (1,790) | | | 344 | Total intangible assets | | $ | 33,012 | | $ | (22,360) | | $ | 10,652 |
Intangible assets at December 31, 2019 consist of the following: | | | | | | | | | | | | Historical | | Accumulated | | | | | Cost | | Amortization | | Net | Venue contracts | | $ | 20,431 | | $ | (15,247) | | $ | 5,184 | Backlog | | | 7,388 | | | (2,104) | | | 5,284 | Customer and partner relationships | | | 3,780 | | | (584) | | | 3,196 | Non-compete agreements, technology and other | | | 4,814 | | | (3,538) | | | 1,276 | Total intangible assets | | $ | 36,413 | | $ | (21,473) | | $ | 14,940 |
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