XML 56 R44.htm IDEA: XBRL DOCUMENT v3.21.2

Investments - Additional Information (Detail)	6 Months Ended
	Sep. 30, 2021 USD ($)
Schedule of Held-to-maturity Securities [Line Items]
Investments	$ 0
Minimum [Member]
Schedule of Held-to-maturity Securities [Line Items]
Treasury with original maturities period	3 months
Maximum
Schedule of Held-to-maturity Securities [Line Items]
Treasury with original maturities period	1 year

X

- Definition

Original maturity period for held to maturity securities.

+ References

No definition available.

+ Details

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X

- Definition

Sum of the carrying amounts as of the balance sheet date of all investments.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.1(h))
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

+ Details

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Period Type:	instant

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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