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Description of Business and Summary of Significant Accounting Policies - Schedule of Adjustments (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Cost of services | $ 408,043 | $ 439,742 | $ 581,293
Sales and marketing | 357,813 | 315,195 | 431,815
General and administrative | 153,902 | 177,574 | 196,543
Impairment charges | 3,611 | 24,911 | 5,670
Depreciation and amortization | $ 105,473 | 146,523 | 206,270
Previously Reported |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Cost of services |  | 366,696 | 476,355
Sales and marketing |  | 263,006 | 352,740
General and administrative |  | 156,286 | 174,286
Impairment charges |  | 24,911 | 5,670
Depreciation and amortization |  | 146,523 | 206,270
Revision of Prior Period, Adjustment |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Cost of services |  | 73,046 | 104,938
Sales and marketing |  | 52,189 | 79,075
General and administrative |  | 21,288 | 22,257
Impairment charges |  | 0 | 0
Depreciation and amortization |  | $ (146,523) | $ (206,270)

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