v3.20.4

Goodwill and intangible assets | 12 Months Ended
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Dec. 31, 2020
Goodwill and intangible assets |
Goodwill and intangible assets | 9. Goodwill and intangible assets Goodwill The following table sets forth the changes in our goodwill balance, for all periods presented: ​
​ | ​ | ​ | ​
​ |  | Goodwill
Balance at December 31, 2018 | ​ | $ | 59,640
Measurement period adjustments for acquisition of Elauwit | ​ |  | (1,061)
Balance at December 31, 2019 | ​ | $ | 58,579
​ Intangible assets The following table sets forth the changes in our intangible assets balance, for all periods presented: ​
​ | ​ | ​ | ​
​ |  | 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
​ 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
​ 9. Goodwill and intangible assets (Continued) The decrease in our intangible assets cost and accumulated amortization balances from 2019 to 2020 is primarily related to the write-off of intangible assets that have expired. Amortization expense for fiscal years 2021 through 2025 and thereafter is as follows: ​
​ | ​ | ​ | ​
​ |  | Amortization
Year | ​ | Expense
2021 | ​ | $ | 3,556
2022 | ​ |  | 3,095
2023 | ​ |  | 1,901
2024 | ​ |  | 681
2025 | ​ |  | 416
Thereafter | ​ |  | 1,003
​ | ​ | $ | 10,652
​

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- Definition The entire disclosure for goodwill and intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -URI http://asc.fasb.org/topic&trid=2144416 + Details
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