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Investments in Affiliates (Parenthetical) (Detail) | Mar. 31, 2019
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Computer Age Management Services Private Limited (''CAMS'') |
Investments in and Advances to Affiliates [Line Items] |
HDFC Bank Ltd. and subsidiaries Investment | 6.50%
Computer Age Management Services Private Limited (''CAMS'') | HDFC Group Ownership |
Investments in and Advances to Affiliates [Line Items] |
HDFC Bank Ltd. and subsidiaries Investment | 12.50%
International Asset Reconstruction Company Private Limited |
Investments in and Advances to Affiliates [Line Items] |
HDFC Bank Ltd. and subsidiaries Investment | 19.20%

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- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571 + Details
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