XML 140 R129.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Stock Options Outstanding, Employees Stock Option Schemes (Detail) - Employees Stock Option Scheme | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Mar. 31, 2017 ₨ / shares shares | Mar. 31, 2017 ₨ / shares $ / shares shares | Mar. 31, 2016 ₨ / shares shares | Mar. 31, 2015 ₨ / shares shares | Mar. 31, 2014 ₨ / shares shares
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |  |  |  |  |
Number Of Shares Arising Out Of Options | shares | 92,156,300 | 92,156,300 | 128,654,300 | 109,033,000 | 92,476,600
Weighted Average Exercise Price | ₨ / shares | ₨ 904.97 | ₨ 904.97 | ₨ 840.19 | ₨ 683.16 | ₨ 556.06
Plan ''C'' |  |  |  |  |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |  |  |  |  |
Range of exercise price, Lower Range | (per share) | 680.00 | ₨ 10.49 |  |  |
Range of exercise price, Upper Range | (per share) | ₨ 835.50 | ₨ 12.88 |  |  |
Number Of Shares Arising Out Of Options | shares | 4,644,400 | 4,644,400 |  |  |
Weighted Average Remaining Life | 2 years 4 months 2 days | 2 years 4 months 2 days |  |  |
Weighted Average Exercise Price | ₨ / shares | ₨ 690.91 | ₨ 690.91 |  |  |
Plan ''D'' |  |  |  |  |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |  |  |  |  |
Range of exercise price | (per share) | ₨ 680.00 | ₨ 10.49 |  |  |
Number Of Shares Arising Out Of Options | shares | 3,334,300 | 3,334,300 |  |  |
Weighted Average Remaining Life | 2 years 3 months 29 days | 2 years 3 months 29 days |  |  |
Weighted Average Exercise Price | ₨ / shares | ₨ 680.00 | ₨ 680.00 |  |  |
Plan "E" |  |  |  |  |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |  |  |  |  |
Range of exercise price, Lower Range | (per share) | 468.40 | ₨ 7.22 |  |  |
Range of exercise price, Upper Range | (per share) | ₨ 680.00 | ₨ 10.49 |  |  |
Number Of Shares Arising Out Of Options | shares | 15,094,600 | 15,094,600 |  |  |
Weighted Average Remaining Life | 2 years 2 months 5 days | 2 years 2 months 5 days |  |  |
Weighted Average Exercise Price | ₨ / shares | ₨ 650.01 | ₨ 650.01 |  |  |
Plan "F" |  |  |  |  |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |  |  |  |  |
Range of exercise price, Lower Range | (per share) | 835.50 | ₨ 12.88 |  |  |
Range of exercise price, Upper Range | (per share) | ₨ 1,097.80 | ₨ 16.93 |  |  |
Number Of Shares Arising Out Of Options | shares | 69,083,000 | 69,083,000 |  |  |
Weighted Average Remaining Life | 3 years 10 months 25 days | 3 years 10 months 25 days |  |  |
Weighted Average Exercise Price | ₨ / shares | ₨ 985.92 | ₨ 985.92 |  |  |

X
- Definition Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range + References No definition available. + Details
Name: | hdb_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRange
Namespace Prefix: | hdb_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of options outstanding, including both vested and non-vested options. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

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

X
- Definition The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
Name: | us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_AwardTypeAxis=us-gaap_EmployeeStockOptionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis=hdb_PlanCMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis=hdb_PlanDMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis=hdb_PlanEMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis=hdb_PlanFMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |