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v3.21.1

Operating expenses | 3 Months Ended
--- | ---
Mar. 31, 2021
Operating expenses |
Operating expenses | 8. Operating expenses Costs of services ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three months ended | ​
​ | ​ | March 31, | ​
​ |  | 2021 |  | 2020 | ​
Ancillary and logistical service expenses | ​ | $ | 12,269 |  | $ | 12,758 | ​
Employee compensation expenses | ​ | ​ | 12,691 | ​ |  | 12,304 | ​
Buildings, facilities and technology expenses | ​ | ​ | 2,701 | ​ |  | 4,039 | ​
Travel, advertising and promotion expenses | ​ | ​ | 4,518 | ​ |  | 6,575 | ​
Other costs of services | ​ | ​ | 3,848 | ​ |  | 3,679 | ​
​ | ​ | $ | 36,027 | ​ | $ | 39,355 | ​
​ SG&A expenses ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three months ended | ​
​ | ​ | March 31, | ​
​ |  | 2021 |  | 2020 | ​
Wages, salaries and benefits | ​ | $ | 78,796 | ​ | $ | 60,088 | ​
Share-based compensation expense | ​ | ​ | 3,778 | ​ | ​ | 2,407 | ​
Buildings, facilities and technology expenses | ​ |  | 17,343 |  | ​ | 15,591 | ​
Travel, advertising and promotion expenses | ​ |  | 5,162 |  | ​ | 10,269 | ​
Professional fees | ​ |  | 5,032 |  | ​ | 4,447 | ​
Other SG&A expenses | ​ |  | 5,967 |  | ​ | 5,583 | ​
​ | ​ | $ | 116,078 |  | $ | 98,385 | ​
​ Depreciation and amortization expenses ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three months ended | ​
​ | ​ | March 31, | ​
​ |  | 2021 |  | 2020 | ​
Depreciation expense | ​ | $ | 7,837 | ​ | $ | 8,037 | ​
Amortization expense | ​ |  | 13,233 | ​ |  | 11,256 | ​
​ | ​ | $ | 21,070 | ​ | $ | 19,293 | ​
​

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