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Summary Of Significant Accounting Polices - Schedule of Estimated Useful Lives of Intangible Assets (Detail)	12 Months Ended
	Mar. 31, 2021
Domain Name | Minimum
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful lives	5 years
Domain Name | Maximum
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful lives	20 years
Trademarks
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful lives	10 years
Insurance Agency License
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful lives	20 years
Broadcasting License | Minimum
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful lives	4 years
Broadcasting License | Maximum
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful lives	5 years
Buyer and Customer Resource
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful lives	2 years
Brand | Minimum
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful lives	2 years
Brand | Maximum
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful lives	8 years
Technology | Minimum
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful lives	2 years
Technology | Maximum
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful lives	3 years
Strategic Business Resources | Minimum
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful lives	3 years
Strategic Business Resources | Maximum
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful lives	5 years

X

- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

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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- Details

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- Details

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- Details

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- Details

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X

- Details

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X

- Details

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- Details

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- Details

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- Details

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- Details

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