XML 123 R112.htm IDEA: XBRL DOCUMENT
v3.19.2

Deposits - Additional Information (Detail) ₨ in Millions, $ in Millions | Mar. 31, 2019 INR (₨) | Mar. 31, 2019 USD ($) | Mar. 31, 2018 INR (₨)
--- | --- | --- | ---
Deposits From Banking Clients [Line Items] |  |  |
Time deposits with residual maturity of one year or less | ₨ 4,570,771.1 | $ 66,089.8 | ₨ 3,904,998.5
Time deposits | 5,317,715.9 | $ 76,890.1 | 4,455,680.6
Deposit in excess of Rs. 100000 |  |  |
Deposits From Banking Clients [Line Items] |  |  |
Time deposits | ₨ 5,145,912.9 |  | ₨ 4,282,026.0

X
- Definition Deposits From Banking Clients [Line Items] + References No definition available. + Details
Name: | hdb_DepositsFromBankingClientsLineItems
Namespace Prefix: | hdb_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of time deposits maturing in the next fiscal year following the latest fiscal year. Time deposits include, but are not limited to, certificates of deposits. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 + Details
Name: | us-gaap_TimeDepositMaturitiesYearOne
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of time deposit liabilities, including certificates of deposit. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 405 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=116652737&loc=d3e64164-112818 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.12) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
Name: | us-gaap_TimeDeposits
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | hdb_DepositsAxis=hdb_InExcessOfRupeesOneHundredThousandMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |