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Commitments and Contingencies - Additional Information (Details) - Putative Class Action | 9 Months Ended
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Jun. 30, 2021 Plantiff
Loss Contingencies [Line Items] |
Lawsuit filing date | September 17, 2020
Number of plaintiffs | 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.

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