Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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Name:	us-gaap_RestructuringCharges
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Special Charges - Additional Information (Details)	3 Months Ended		9 Months Ended
Special Charges - Additional Information (Details)	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($) employee	Sep. 30, 2019 USD ($)
Restructuring Cost and Reserve [Line Items]
Special charges	$ 7,103,000	$ 0	$ 7,103,000	$ 0
Non cash charges			$ 4,400,000
Restructuring charge, payment term			12 months
Contract Termination
Restructuring Cost and Reserve [Line Items]
Special charges			$ 4,700,000
Employee Severance
Restructuring Cost and Reserve [Line Items]
Special charges			$ 2,400,000
Reduction in workforce \| employee			16