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v3.23.2

Government Grants (Details) $ in Millions | 6 Months Ended
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Jun. 30, 2023 USD ($)
Other Income [Line Items] |
Increase (decrease) in grants receivable | $ 16.1
Maryland |
Other Income [Line Items] |
Increase (decrease) in grants receivable | 9.4
West Virginia |
Other Income [Line Items] |
Increase (decrease) in grants receivable | 0.4
VIRGINIA |
Other Income [Line Items] |
Increase (decrease) in grants receivable | $ 6.3

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