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v3.20.4

Restructuring and Related Charges (Details) $ in Millions | 1 Months Ended | 12 Months Ended
--- | --- | ---
Oct. 31, 2013 item | Dec. 31, 2020 USD ($)
Restructuring Cost and Reserve [Line Items] |  |
Campus location closed | item | 20 |
Lease marginal borrowing rate | 4.50% |
Lease and Related Costs, Net |  |
Restructuring Cost and Reserve [Line Items] |  |
Right-of-use lease asset impairment charges and early lease termination costs | $ |  | $ 0.4

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