Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation.

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Name:	us-gaap_SeveranceCosts1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Acquisitions, Litigation, and Other Charges Acquisitions, Litigation, and Other Charges - Narrative (Details) $ in Millions	3 Months Ended	9 Months Ended
	Mar. 31, 2020 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($) employee
Restructuring Cost and Reserve [Line Items]
Accelerated equity award vesting	$ 3.1		$ 3.1
Reduction in Headcount from Cloverleaf Acquisition
Restructuring Cost and Reserve [Line Items]
Severance		$ 3.6
Departure of Former Executives
Restructuring Cost and Reserve [Line Items]
Severance			$ 1.2
Number of departed executives \| employee			2