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Property and Equipment (Tables) | 12 Months Ended
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Dec. 31, 2020
Property, Plant and Equipment [Abstract] |
Schedule of Property and Equipment | Net property and equipment at December 31, 2020 and 2019 consisted of the following (in millions):
|  | 2020 |  | 2019
Computer hardware and software |  | $ | 201.6 |  |  | $ | 180.2 |
Furniture, fixtures and equipment |  | 28.0 |  |  | 26.8 |
Leasehold improvements |  | 28.9 |  |  | 24.7 |
Work-in-progress |  | 4.8 |  |  | 7.0 |
|  | 263.3 |  |  | 238.7 |
Less: accumulated depreciation |  | (193.9) |  |  | (165.0) |
|  | $ | 69.4 |  |  | $ | 73.7 |
Depreciation Expense | The following table summarizes the presentation of depreciation expense within the accompanying consolidated statements of operations for the years ended December 31, 2020, 2019 and 2018:
|  | 2020 |  | 2019 |  | 2018
Selling, general and administrative expenses |  | $ | 33.4 |  |  | $ | 29.8 |  |  | $ | 28.8 |
Costs of services |  | 4.6 |  |  | 10.3 |  |  | 7.7 |
|  | $ | 38.0 |  |  | $ | 40.1 |  |  | $ | 36.5 |

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