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Intangible Assets - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Finite-Lived Intangible Assets [Line Items]
Amortization expense of intangibles	$ 2.4	$ 2.6	$ 7.3	$ 8.5
COVID-19 | Services
Finite-Lived Intangible Assets [Line Items]
Impairment of intangibles				28.8
Software/Technology | COVID-19 | Services
Finite-Lived Intangible Assets [Line Items]
Impairment of intangibles				25.9
Customer relationships | COVID-19 | Services
Finite-Lived Intangible Assets [Line Items]
Impairment of intangibles				2.2
Other | COVID-19 | Services
Finite-Lived Intangible Assets [Line Items]
Impairment of intangibles				0.5
Covenants not to compete | COVID-19 | Services
Finite-Lived Intangible Assets [Line Items]
Impairment of intangibles				$ 0.2

X

- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
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-Paragraph 28
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