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Goodwill (Details) - USD ($) | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract] |  |  |
Goodwill impairment | $ 0 |  |
Goodwill [Line Items] |  |  |
Goodwill | 177,200,000 | $ 177,800,000 | $ 180,800,000
Services |  |  |
Goodwill [Line Items] |  |  |
Goodwill | 68,500,000 | $ 69,100,000 | $ 72,100,000
BPO services | Services |  |  |
Goodwill [Line Items] |  |  |
Goodwill | $ 10,300,000 |  |

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