Commitments and Contingencies - Additional Information (Details) $ in Millions	3 Months Ended	6 Months Ended
	Dec. 31, 2020 USD ($)	Mar. 31, 2021 USD ($) Plantiff
Loss Contingencies [Line Items]
Charge related to effects of Non US Jurisdiction Tax Matter | $	$ 36.1	$ 36.1
Putative Class Action
Loss Contingencies [Line Items]
Lawsuit filing date		September 17, 2020
Number of plaintiffs | Plantiff		3
Lawsuit action domicile		U.S. District Court for the District of Massachusetts
Plaintiffs claim		The plaintiffs seek unspecified damages on behalf of a class of Plan participants from September 17, 2014 through the date of any judgment.