XML 119 R108.htm IDEA: XBRL DOCUMENT
v3.19.2

Gross Carrying Amount, Accumulated Amortization and Net Carrying Amount, in Total and by Major Class of Intangible Assets (Detail) ₨ in Millions, $ in Millions | Mar. 31, 2019 INR (₨) | Mar. 31, 2019 USD ($) | Mar. 31, 2018 INR (₨)
--- | --- | --- | ---
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Gross carrying amount | ₨ 16,002.0 |  | ₨ 16,002.0
Accumulated amortization | 16,002.0 |  | 16,001.0
Net carrying amount | 0.0 | $ 0.0 | 1.0
Branch network |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Gross carrying amount | 8,335.0 |  | 8,335.0
Accumulated amortization | 8,335.0 |  | 8,335.0
Net carrying amount | 0.0 | 0.0 | 0.0
Customer list |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Gross carrying amount | 2,710.0 |  | 2,710.0
Accumulated amortization | 2,710.0 |  | 2,710.0
Net carrying amount | 0.0 | 0.0 | 0.0
Core deposit |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Gross carrying amount | 4,414.0 |  | 4,414.0
Accumulated amortization | 4,414.0 |  | 4,414.0
Net carrying amount | 0.0 | 0.0 | 0.0
Favorable leases |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Gross carrying amount | 543.0 |  | 543.0
Accumulated amortization | 543.0 |  | 542.0
Net carrying amount | ₨ 0.0 | $ 0.0 | ₨ 1.0

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
Name: | us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
Name: | us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 928 -SubTopic 340 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
Name: | us-gaap_FiniteLivedIntangibleAssetsGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
Name: | us-gaap_FiniteLivedIntangibleAssetsNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=hdb_BranchNetworkMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_CustomerListsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_CoreDepositsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_LeaseAgreementsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |