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Leases - Narrative Information (Details) | Feb. 08, 2022 USD ($) renewalOption | Mar. 31, 2023 USD ($) | Mar. 31, 2022 USD ($)
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Leases [Abstract] |  |  |
New campus lease lessee option term for construction of fifth building | 6 years |  |
New campus rent abatement period | 10 months |  |
New campus lease monthly base rent per square foot | $ 6 |  |
New campus lease annual rent escalation percentage | 3.00% |  |
New campus lease term | 13 years 7 months |  |
New campus lease number of renewal options | renewalOption | 2 |  |
New campus lease renewal term | 5 years |  |
Restricted cash in connection with operating leases |  | $ 7,800,000 | $ 7,800,000

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- Definition Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a)(3) -URI https://asc.fasb.org/extlink&oid=128292326&loc=SL77918673-209980 + Details
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- Definition Amount of cash and cash equivalents restricted as to withdrawal or usage, classified as noncurrent. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 8 -URI https://asc.fasb.org/extlink&oid=126999549&loc=SL98516268-108586 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 4 -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3044-108585 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 954 -SubTopic 210 -Section 45 -Paragraph 5 -URI https://asc.fasb.org/extlink&oid=120413173&loc=SL116631458-115580 + Details
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