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]]

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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]

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Financial Instruments - Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2017
Disclosure of detailed information about financial instruments [line items]
Derivative assets	$ 19,081	$ 14,983
Investments in marketable securities and mutual funds	134,493	99,954
Total assets	415,838	394,142
Derivative liabilities	2,403	8,755
Total liabilities	178,267	220,365
Fair value on recurring basis [member]
Disclosure of detailed information about financial instruments [line items]
Total assets	153,573	114,937
Total liabilities	5,600	20,143
Fair value on recurring basis [member] \| Fair value through profit or loss [member]
Disclosure of detailed information about financial instruments [line items]
Investments in marketable securities and mutual funds	134,493	99,954
Fair value on recurring basis [member] \| Fair value through profit or loss [member] \| Foreign exchange contracts [member]
Disclosure of detailed information about financial instruments [line items]
Derivative assets	2,077	2,212
Fair value on recurring basis [member] \| Financial assets at FVOCI [member] \| Foreign exchange contracts [member]
Disclosure of detailed information about financial instruments [line items]
Derivative assets	16,611	11,709
Fair value on recurring basis [member] \| Financial assets at FVOCI [member] \| Interest rate swap contracts [member]
Disclosure of detailed information about financial instruments [line items]
Derivative assets	392	1,062
Fair value on recurring basis [member] \| Fair value through profit or loss [member]
Disclosure of detailed information about financial instruments [line items]
Contingent consideration	3,197	11,388
Fair value on recurring basis [member] \| Fair value through profit or loss [member] \| Foreign exchange contracts [member]
Disclosure of detailed information about financial instruments [line items]
Derivative liabilities	308	946
Fair value on recurring basis [member] \| Financial liabilities at FVOCI [member] \| Foreign exchange contracts [member]
Disclosure of detailed information about financial instruments [line items]
Derivative liabilities	2,095	7,809
Fair value on recurring basis [member] \| Level 1 [member]
Disclosure of detailed information about financial instruments [line items]
Total assets	134,047	99,412
Fair value on recurring basis [member] \| Level 1 [member] \| Fair value through profit or loss [member]
Disclosure of detailed information about financial instruments [line items]
Investments in marketable securities and mutual funds	134,047	99,412
Fair value on recurring basis [member] \| Level 2 [member]
Disclosure of detailed information about financial instruments [line items]
Total assets	19,526	15,525
Total liabilities	2,403	8,755
Fair value on recurring basis [member] \| Level 2 [member] \| Fair value through profit or loss [member]
Disclosure of detailed information about financial instruments [line items]
Investments in marketable securities and mutual funds	446	542
Fair value on recurring basis [member] \| Level 2 [member] \| Fair value through profit or loss [member] \| Foreign exchange contracts [member]
Disclosure of detailed information about financial instruments [line items]
Derivative assets	2,077	2,212
Fair value on recurring basis [member] \| Level 2 [member] \| Financial assets at FVOCI [member] \| Foreign exchange contracts [member]
Disclosure of detailed information about financial instruments [line items]
Derivative assets	16,611	11,709
Fair value on recurring basis [member] \| Level 2 [member] \| Financial assets at FVOCI [member] \| Interest rate swap contracts [member]
Disclosure of detailed information about financial instruments [line items]
Derivative assets	392	1,062
Fair value on recurring basis [member] \| Level 2 [member] \| Fair value through profit or loss [member] \| Foreign exchange contracts [member]
Disclosure of detailed information about financial instruments [line items]
Derivative liabilities	308	946
Fair value on recurring basis [member] \| Level 2 [member] \| Financial liabilities at FVOCI [member] \| Foreign exchange contracts [member]
Disclosure of detailed information about financial instruments [line items]
Derivative liabilities	2,095	7,809
Fair value on recurring basis [member] \| Level 3 [member]
Disclosure of detailed information about financial instruments [line items]
Contingent consideration	3,197	11,388	$ 19,678
Total liabilities	3,197	11,388
Fair value on recurring basis [member] \| Level 3 [member] \| Fair value through profit or loss [member]
Disclosure of detailed information about financial instruments [line items]
Contingent consideration	$ 3,197	$ 11,388