Financial Instruments - Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands	Mar. 31, 2018	Mar. 31, 2017
Disclosure of detailed information about financial instruments [line items]
Derivative assets	$ 14,983	$ 41,982
Investments in marketable securities and mutual funds	99,954	87,652
Total assets	394,142	357,732
Derivative liabilities	8,755	4,783
Total liabilities	220,365	231,704
Investment in FMPs		96
Fair value on recurring basis [member]
Disclosure of detailed information about financial instruments [line items]
Total assets	114,937	129,730
Total liabilities	20,143	24,461
Fair value on recurring basis [member] \| Financial assets at FVTPL [member]
Disclosure of detailed information about financial instruments [line items]
Investment in FMPs		96
Fair value on recurring basis [member] \| Financial assets at FVTPL [member] \| Foreign exchange contracts [member]
Disclosure of detailed information about financial instruments [line items]
Derivative assets	2,212	5,041
Fair value on recurring basis [member] \| Financial assets at fair value through other comprehensive income [member]
Disclosure of detailed information about financial instruments [line items]
Investments in marketable securities and mutual funds	99,954	87,652
Fair value on recurring basis [member] \| Financial assets at fair value through other comprehensive income [member] \| Foreign exchange contracts [member]
Disclosure of detailed information about financial instruments [line items]
Derivative assets	11,709	36,733
Fair value on recurring basis [member] \| Financial assets at fair value through other comprehensive income [member] \| Interest rate swap contracts [member]
Disclosure of detailed information about financial instruments [line items]
Derivative assets	1,062	208
Fair value on recurring basis [member] \| Financial liabilities at FVTPL [member]
Disclosure of detailed information about financial instruments [line items]
Contingent consideration	11,388	19,678
Fair value on recurring basis [member] \| Financial liabilities at FVTPL [member] \| Foreign exchange contracts [member]
Disclosure of detailed information about financial instruments [line items]
Derivative liabilities	946	26
Fair value on recurring basis [member] \| Financial liabilities at fair value through other comprehensive income [member] \| Foreign exchange contracts [member]
Disclosure of detailed information about financial instruments [line items]
Derivative liabilities	7,809	4,136
Fair value on recurring basis [member] \| Financial liabilities at fair value through other comprehensive income [member] \| Interest rate swap contracts [member]
Disclosure of detailed information about financial instruments [line items]
Derivative liabilities		621
Fair value on recurring basis [member] \| Level 1 [member]
Disclosure of detailed information about financial instruments [line items]
Total assets	99,412	87,319
Fair value on recurring basis [member] \| Level 1 [member] \| Financial assets at FVTPL [member]
Disclosure of detailed information about financial instruments [line items]
Investment in FMPs		96
Fair value on recurring basis [member] \| Level 1 [member] \| Financial assets at fair value through other comprehensive income [member]
Disclosure of detailed information about financial instruments [line items]
Investments in marketable securities and mutual funds	99,412	87,223
Fair value on recurring basis [member] \| Level 2 [member]
Disclosure of detailed information about financial instruments [line items]
Total assets	15,525	42,411
Total liabilities	8,755	4,783
Fair value on recurring basis [member] \| Level 2 [member] \| Financial assets at FVTPL [member] \| Foreign exchange contracts [member]
Disclosure of detailed information about financial instruments [line items]
Derivative assets	2,212	5,041
Fair value on recurring basis [member] \| Level 2 [member] \| Financial assets at fair value through other comprehensive income [member]
Disclosure of detailed information about financial instruments [line items]
Investments in marketable securities and mutual funds	542	429
Fair value on recurring basis [member] \| Level 2 [member] \| Financial assets at fair value through other comprehensive income [member] \| Foreign exchange contracts [member]
Disclosure of detailed information about financial instruments [line items]
Derivative assets	11,709	36,733
Fair value on recurring basis [member] \| Level 2 [member] \| Financial assets at fair value through other comprehensive income [member] \| Interest rate swap contracts [member]
Disclosure of detailed information about financial instruments [line items]
Derivative assets	1,062	208
Fair value on recurring basis [member] \| Level 2 [member] \| Financial liabilities at FVTPL [member] \| Foreign exchange contracts [member]
Disclosure of detailed information about financial instruments [line items]
Derivative liabilities	946	26
Fair value on recurring basis [member] \| Level 2 [member] \| Financial liabilities at fair value through other comprehensive income [member] \| Foreign exchange contracts [member]
Disclosure of detailed information about financial instruments [line items]
Derivative liabilities	7,809	4,136
Fair value on recurring basis [member] \| Level 2 [member] \| Financial liabilities at fair value through other comprehensive income [member] \| Interest rate swap contracts [member]
Disclosure of detailed information about financial instruments [line items]
Derivative liabilities		621
Fair value on recurring basis [member] \| Level 3 [member]
Disclosure of detailed information about financial instruments [line items]
Contingent consideration	11,388	19,678
Total liabilities	11,388	19,678
Fair value on recurring basis [member] \| Level 3 [member] \| Financial liabilities at FVTPL [member]
Disclosure of detailed information about financial instruments [line items]
Contingent consideration	$ 11,388	$ 19,678

The amount recognised as of the acquisition date for contingent consideration arrangements assumed and indemnification assets acquired in a business combination. [Refer: Business combinations [member]]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 3
-IssueDate 2017-01-01
-Paragraph B64
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-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=3&date=2017-03-01&anchor=para_B64_g_i&doctype=Appendix&seq=2
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- Definition

The amount of financial assets classified as derivative instruments. [Refer: Financial assets; Derivatives [member]]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2017-01-01
-Paragraph 55
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_55&doctype=Standard
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The amount of financial liabilities classified as derivative instruments. [Refer: Financial assets; Derivatives [member]]

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Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

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The amount of assets that are: (a) cash; (b) an equity instrument of another entity; (c) a contractual right: (i) to receive cash or another financial asset from another entity; or (ii) to exchange financial assets or financial liabilities with another entity under conditions that are potentially favourable to the entity; or (d) a contract that will, or may be, settled in the entity’s own equity instruments and is: (i) a non-derivative for which the entity is, or may be, obliged to receive a variable number of the entity’s own equity instruments; or (ii) a derivative that will, or may be, settled other than by the exchange of a fixed amount of cash or another financial asset for a fixed number of the entity’s own equity instruments. For this purpose the entity’s own equity instruments do not include puttable financial instruments classified as equity instruments in accordance with paragraphs 16A-16B of IAS 32, instruments that impose on the entity an obligation to deliver to another party a pro rata share of the net assets of the entity only on liquidation and are classified as equity instruments in accordance with paragraphs 16C-16D of IAS 32, or instruments that are contracts for the future receipt or delivery of the entity’s own equity instruments. [Refer: Financial instruments, class [member]; Financial liabilities]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Note Effective 2018-01-01
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2018-01-01
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-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-01&anchor=para_35M&doctype=Standard
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- Definition

The amount of liabilities that are: (a) a contractual obligation: (i) to deliver cash or another financial asset to another entity; or (ii) to exchange financial assets or financial liabilities with another entity under conditions that are potentially unfavourable to the entity; or (b) a contract that will, or may be, settled in the entity’s own equity instruments and is: (i) a non-derivative for which the entity is, or may be, obliged to deliver a variable number of the entity’s own equity instruments; or (ii) a derivative that will, or may be, settled other than by the exchange of a fixed amount of cash or another financial asset for a fixed number of the entity’s own equity instruments. For this purpose, rights, options or warrants to acquire a fixed number of the entity’s own equity instruments for a fixed amount of any currency are equity instruments if the entity offers the rights, options or warrants pro rata to all of its existing owners of the same class of its own non-derivative equity instruments. Also, for those purposes the entity’s own equity instruments do not include puttable financial instruments that are classified as equity instruments in accordance with paragraphs 16A-16B of IAS 32, instruments that impose on the entity an obligation to deliver to another party a pro rata share of the net assets of the entity only on liquidation and are classified as equity instruments in accordance with paragraphs 16C-16D of IAS 32, or instruments that are contracts for the future receipt or delivery of the entity’s own equity instruments. As an exception, an instrument that meets the definition of a financial liability is classified as an equity instrument if it has all the features and meets the conditions in paragraphs 16A-16B or paragraphs 16C-16D of IAS 32. [Refer: Financial instruments, class [member]; Financial assets; Derivatives [member]]

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- Definition

Fixed maturity plans ("FMPs") represent investments in mutual fund schemes wherein the mutual fund issuer has invested these funds in certificate of deposits with banks in India. These investments are financial assets designated as fair value through profit or loss.

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Marketable securities represent liquid investments and are acquired principally for the purpose of earning daily dividend income. Investments in mutual funds represent investments in mutual fund schemes wherein the mutual fund issuer has invested these funds in enterprise development funds. These investments are current non-derivative financial assets that are designated as available for sale.

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No definition available.

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