Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
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Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
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Name:	us-gaap_Goodwill
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Goodwill and Intangible Assets - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2021	Sep. 30, 2020	Jun. 03, 2021	Jan. 31, 2021	Dec. 31, 2020
Goodwill [Line Items]
Goodwill	$ 242.9	$ 242.9			$ 108.6	$ 108.6
Amortization expense	1.2	1.7	$ 0.0
Unify Square, Inc.
Goodwill [Line Items]
Goodwill				$ 134.3
ClearPath Forward
Goodwill [Line Items]
Goodwill	98.3	98.3			98.3	98.3
Other
Goodwill [Line Items]
Goodwill	$ 10.3	$ 10.3			$ 10.3	$ 10.3