XML 140 R129.htm IDEA: XBRL DOCUMENT
v3.19.2

Tax Effects of Significant Temporary Differences (Parenthetical) (Detail) - INR (₨) ₨ in Millions | Mar. 31, 2019 | Mar. 31, 2018
--- | --- | ---
Schedule of Deferred Income Tax Assets and Liabilities [Line Items] |  |
Deferred tax assets, accrued expenses and other liabilities | ₨ 4,310.4 | ₨ 3,400.5

X
- Definition Schedule of Deferred Income Tax Assets and Liabilities [Line Items] + References No definition available. + Details
Name: | hdb_ScheduleOfDeferredIncomeTaxAssetsAndLiabilitiesLineItems
Namespace Prefix: | hdb_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from accrued liabilities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32632-109319 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32621-109319 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 20 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=117330534&loc=d3e28680-109314 + Details
Name: | us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant