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Impact on Adoption of New IFRS - Impact of Adoption of IFRS 15 and IFRS 9 on Consolidated Cashflows (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Mar. 31, 2019 | Mar. 31, 2018 | Mar. 31, 2017
Adjustments to reconcile profit after tax to net cash generated from operating activities: |  |  |
Depreciation and amortization | $ 36,117 | $ 35,459 | $ 37,442
Share-based compensation expense | 30,305 | 30,565 | 23,036
Amortization of debt issue cost | 360 | 488 | 52
Allowances for ECL | 659 | (499) | (1,040)
Unrealized exchange loss/(gain), net | (2,441) | 2,663 | (11,123)
Current tax expense | 27,526 | 24,494 | 25,785
Interest expense | 2,844 | 3,778 | 495
Interest income | (2,556) | (3,693) | (2,083)
Income from marketable securities | (7,979) | (3,570) | (4,131)
Loss on sale of property and equipment | 25 | (325) | 143
Deferred income taxes | (1,807) | (9,063) | (8,255)
Deferred rent | 1,578 | 1,289 | 1,136
Excess tax benefit from share-based compensation expense | (1,260) | (685) | (270)
Unrealized (gain)/loss on derivative instruments | (372) | 5,283 | (1,930)
Changes in operating assets and liabilities: |  |  |
Trade receivables and unbilled revenue | (14,822) | (16,413) | (1,630)
Other assets | (17,340) | (4,196) | (2,137)
Trade payables | (585) | 2,029 | (4,203)
Contract liabilities | 8,714 | (2,560) | 2,303
Other liabilities | 8,279 | 13,722 | 6,914
Cash generated from operating activities before interest and income taxes: | 172,678 | 163,636 | 119,677
Income taxes paid | (22,992) | (27,265) | (29,462)
Interest paid | (2,521) | (3,390) | (84)
Interest received | 2,489 | 3,327 | 2,004
Net cash provided by operating activities | 149,654 | 136,308 | 92,135
Cash flows from investing activities: |  |  |
Payment of contingent considerations in relation to acquisitions | (6,922) | (5,465) |
Government grants repaid | (200) | (136) |
Purchase of property and equipment and intangible assets | (32,292) | (33,684) | (22,867)
Marketable securities (purchased)/sold, net | 42,037 | (12,761) | 32,413
Proceeds from sale of property and equipment | 120 | 367 | 443
Investment in fixed deposits | (27,899) | (26,532) | (24,672)
Proceeds from maturity of fixed deposits | 31,336 | 30,698 | 15,112
Marketable securities (long-term) sold / (purchased), net | (78,823) |  |
Profit on sale of marketable securities (short-term) | 1,497 |  |
Dividends received | 32 | 3,570 | 4,127
Net cash used in investing activities | (71,347) | (43,583) | (131,267)
Cash flows from financing activities: |  |  |
Repurchase of shares | (56,417) | (39,546) | (64,224)
Repayment of long-term debt | (28,100) | (28,100) |
Excess tax benefit from share-based compensation expense | 1,260 | 685 | 270
Net cash (used in)/provided by financing activities | (83,257) | (66,020) | 61,559
Exchange difference on cash and cash equivalents | (9,435) | 3,321 | 5,522
Net change in cash and cash equivalents | (14,385) | 30,026 | 27,949
Cash and cash equivalents at the beginning of the year | 99,829 | 69,803 | 41,854
Cash and cash equivalents at the end of the year | 85,444 | 99,829 | $ 69,803
Hotel Beds Group SLU [member] |  |  |
Cash flows from investing activities: |  |  |
Acquisition of HotelBeds | (233) |  |
Adoption Of IFRS 9 And 15 [member] |  |  |
Cash flows from operating activities: |  |  |
Profit after tax | 105,433 |  |
Adjustments to reconcile profit after tax to net cash generated from operating activities: |  |  |
Depreciation and amortization | 36,117 |  |
Share-based compensation expense | 30,305 |  |
Amortization of debt issue cost | 360 |  |
Allowances for ECL | 659 |  |
Unrealized exchange loss/(gain), net | (2,441) |  |
Current tax expense | 27,526 |  |
Interest expense | 2,844 |  |
Interest income | (2,556) |  |
Income from marketable securities | (7,979) |  |
Loss on sale of property and equipment | 25 |  |
Deferred income taxes | (1,807) |  |
Deferred rent | 1,578 |  |
Excess tax benefit from share-based compensation expense | (1,260) |  |
Unrealized (gain)/loss on derivative instruments | (372) |  |
Changes in operating assets and liabilities: |  |  |
Trade receivables and unbilled revenue | (14,822) |  |
Other assets | (17,340) |  |
Trade payables | (585) |  |
Contract liabilities | 8,714 |  |
Other liabilities | 8,279 |  |
Cash generated from operating activities before interest and income taxes: | 172,678 |  |
Income taxes paid | (22,992) |  |
Interest paid | (2,521) |  |
Interest received | 2,489 |  |
Net cash provided by operating activities | 149,654 |  |
Cash flows from investing activities: |  |  |
Payment of contingent considerations in relation to acquisitions | (6,922) |  |
Government grants repaid | (200) |  |
Purchase of property and equipment and intangible assets | (32,292) |  |
Marketable securities (purchased)/sold, net | 42,037 |  |
Proceeds from sale of property and equipment | 120 |  |
Investment in fixed deposits | (27,899) |  |
Proceeds from maturity of fixed deposits | 31,336 |  |
Marketable securities (long-term) sold / (purchased), net | (78,823) |  |
Profit on sale of marketable securities (short-term) | 1,497 |  |
Dividends received | 32 |  |
Net cash used in investing activities | (71,347) |  |
Cash flows from financing activities: |  |  |
Repurchase of shares | (56,417) |  |
Repayment of long-term debt | (28,100) |  |
Excess tax benefit from share-based compensation expense | 1,260 |  |
Net cash (used in)/provided by financing activities | (83,257) |  |
Exchange difference on cash and cash equivalents | (9,435) |  |
Net change in cash and cash equivalents | (14,385) |  |
Cash and cash equivalents at the beginning of the year | 99,829 |  |
Cash and cash equivalents at the end of the year | 85,444 | 99,829 |
Adoption Of IFRS 9 And 15 [member] | Hotel Beds Group SLU [member] |  |  |
Cash flows from investing activities: |  |  |
Acquisition of HotelBeds | (233) |  |
Adjustments on adoption of IFRS 15 [member] |  |  |
Cash flows from operating activities: |  |  |
Profit after tax | (2,353) |  |
Adjustments to reconcile profit after tax to net cash generated from operating activities: |  |  |
Deferred income taxes | 583 |  |
Changes in operating assets and liabilities: |  |  |
Other assets | 1,779 |  |
Contract liabilities | (9) |  |
Adjustments on adoption of IFRS9 [member] |  |  |
Cash flows from operating activities: |  |  |
Profit after tax | 2,411 |  |
Adjustments to reconcile profit after tax to net cash generated from operating activities: |  |  |
Deferred income taxes | 649 |  |
Unrealized (gain)/loss on derivative instruments | (2,840) |  |
Changes in operating assets and liabilities: |  |  |
Trade receivables and unbilled revenue | (190) |  |
Other assets | (30) |  |
Amounts (Balance) without adoption of IFRS 15 and IFRS9 [member] |  |  |
Cash flows from operating activities: |  |  |
Profit after tax | 105,491 |  |
Adjustments to reconcile profit after tax to net cash generated from operating activities: |  |  |
Depreciation and amortization | 36,117 |  |
Share-based compensation expense | 30,305 |  |
Amortization of debt issue cost | 360 |  |
Allowances for ECL | 659 |  |
Unrealized exchange loss/(gain), net | (2,441) |  |
Current tax expense | 27,526 |  |
Interest expense | 2,844 |  |
Interest income | (2,556) |  |
Income from marketable securities | (7,979) |  |
Loss on sale of property and equipment | 25 |  |
Deferred income taxes | (575) |  |
Deferred rent | 1,578 |  |
Excess tax benefit from share-based compensation expense | (1,260) |  |
Unrealized (gain)/loss on derivative instruments | (3,212) |  |
Changes in operating assets and liabilities: |  |  |
Trade receivables and unbilled revenue | (15,012) |  |
Other assets | (15,591) |  |
Trade payables | (585) |  |
Contract liabilities | 8,705 |  |
Other liabilities | 8,279 |  |
Cash generated from operating activities before interest and income taxes: | 172,678 |  |
Income taxes paid | (22,992) |  |
Interest paid | (2,521) |  |
Interest received | 2,489 |  |
Net cash provided by operating activities | 149,654 |  |
Cash flows from investing activities: |  |  |
Payment of contingent considerations in relation to acquisitions | (6,922) |  |
Government grants repaid | (200) |  |
Purchase of property and equipment and intangible assets | (32,292) |  |
Marketable securities (purchased)/sold, net | 42,037 |  |
Proceeds from sale of property and equipment | 120 |  |
Investment in fixed deposits | (27,899) |  |
Proceeds from maturity of fixed deposits | 31,336 |  |
Marketable securities (long-term) sold / (purchased), net | (78,823) |  |
Profit on sale of marketable securities (short-term) | 1,497 |  |
Dividends received | 32 |  |
Net cash used in investing activities | (71,347) |  |
Cash flows from financing activities: |  |  |
Repurchase of shares | (56,417) |  |
Repayment of long-term debt | (28,100) |  |
Excess tax benefit from share-based compensation expense | 1,260 |  |
Net cash (used in)/provided by financing activities | (83,257) |  |
Exchange difference on cash and cash equivalents | (9,435) |  |
Net change in cash and cash equivalents | (14,385) |  |
Cash and cash equivalents at the beginning of the year | 99,829 |  |
Cash and cash equivalents at the end of the year | 85,444 | $ 99,829 |
Amounts (Balance) without adoption of IFRS 15 and IFRS9 [member] | Hotel Beds Group SLU [member] |  |  |
Cash flows from investing activities: |  |  |
Acquisition of HotelBeds | $ (233) |  |

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- Definition The cash inflow from dividends received, classified as investing activities. [Refer: Dividends received] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 7 -IssueDate 2018-01-01 -Paragraph 31 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=7&date=2018-03-01&anchor=para_31&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The effect of exchange rate changes on cash and cash equivalents held or due in a foreign currency. [Refer: Cash and cash equivalents] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 7 -IssueDate 2018-01-01 -Paragraph 25 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=7&date=2018-03-01&anchor=para_25&doctype=Standard -URIDate 2018-03-16 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 7 -IssueDate 2018-01-01 -Paragraph 28 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=7&date=2018-03-01&anchor=para_28&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The cash outflow for income taxes paid, classified as operating activities. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2018-01-01 -Paragraph 35 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=7&date=2018-03-01&anchor=para_35&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The increase (decrease) in cash and cash equivalents. [Refer: Cash and cash equivalents] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 7 -IssueDate 2018-01-01 -Paragraph 45 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=7&date=2018-03-01&anchor=para_45&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The cash outflow for interest paid, classified as operating activities. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 7 -IssueDate 2018-01-01 -Paragraph 31 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=7&date=2018-03-01&anchor=para_31&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The cash outflow to acquire or redeem entity's shares. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 7 -IssueDate 2018-01-01 -Paragraph 17 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=7&date=2018-03-01&anchor=para_17_b&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The cash inflow from sales of property, plant and equipment, classified as investing activities. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 7 -IssueDate 2018-01-01 -Paragraph 16 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=7&date=2018-03-01&anchor=para_16_b&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The cash outflow for the purchase of property, plant and equipment, intangible assets other than goodwill, investment property and other non-current assets. [Refer: Intangible assets other than goodwill; Investment property; Other non-current assets; Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2018-01-01 -Paragraph 16 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=7&date=2018-03-01&anchor=para_16&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The cash outflow for repayments of non-current borrowings. [Refer: Borrowings] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2018-01-01 -Paragraph 17 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=7&date=2018-03-01&anchor=para_17&doctype=Standard -URIDate 2018-03-16 + Details
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