$EXLS
ExlService Holdings, Inc. Stock $exls

$exls Overview Financials Valuation SEC Filings Company Website

2020 Q3 Form 10-Q Financial Statement

#000129798920000010 Filed on October 29, 2020

Income Statement

Concept	2020 Q3	2019 Q4	2019 Q3
Revenue	$241.0M	$256.9M	$251.4M
YoY Change	-4.13%	9.35%	8.77%
Cost Of Revenue	$152.1M	$168.3M	$167.5M
YoY Change	-9.22%	8.65%	10.11%
Gross Profit	$88.93M	$88.61M	$83.85M
YoY Change	6.06%	10.82%	6.18%
Gross Profit Margin	36.9%	34.5%	33.35%
Selling, General & Admin	$42.10M	$51.40M	$47.89M
YoY Change	-12.09%	5.76%	5.97%
% of Gross Profit	47.34%	58.01%	57.12%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$9.012M	$12.60M	$7.545M
YoY Change	19.44%	-5.97%	2.22%
% of Gross Profit	10.13%	14.22%	9.0%
Operating Expenses	$54.53M	$63.90M	$61.43M
YoY Change	-11.24%	3.06%	3.6%
Operating Profit	$34.41M	$24.71M	$22.42M
YoY Change	53.45%	37.62%	13.97%
Interest Expense	$2.628M	$600.0K	$3.180M
YoY Change	-17.36%	-60.0%	28.48%
% of Operating Profit	7.64%	2.43%	14.18%
Other Income/Expense, Net	$573.0K	$100.0K	$2.392M
YoY Change	-76.05%	-90.91%	73.84%
Pretax Income	$34.98M	$24.03M	$24.81M
YoY Change	40.96%	4705.6%	17.88%
Income Tax	$8.490M	$2.600M	$5.701M
% Of Pretax Income	24.27%	10.82%	22.97%
Net Earnings	$26.42M	$21.36M	$19.04M
YoY Change	38.72%	453.69%	24.89%
Net Earnings / Revenue	10.96%	8.31%	7.58%
Basic Earnings Per Share	$0.77	$0.62	$0.55
Diluted Earnings Per Share	$0.76	$0.62	$0.55
COMMON SHARES
Basic Shares Outstanding	34.33M shares	34.25M shares	34.32M shares
Diluted Shares Outstanding	34.54M shares	34.70M shares	34.70M shares

Balance Sheet

Concept	2020 Q3	2019 Q4	2019 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$362.6M	$321.4M	$280.8M
YoY Change	29.13%	14.62%	15.79%
Cash & Equivalents	$206.4M	$119.2M	$101.4M
Short-Term Investments	$156.2M	$202.2M	$179.3M
Other Short-Term Assets	$30.78M	$24.59M	$27.97M
YoY Change	10.05%	-12.91%	15.11%
Inventory	$2.500M	$1.600M	$1.800M
Prepaid Expenses			$9.364M
Receivables	$155.0M	$171.9M	$179.7M
Other Receivables	$14.30M	$12.60M	$16.50M
Total Short-Term Assets	$565.1M	$541.3M	$506.2M
YoY Change	11.62%	8.27%	11.55%
LONG-TERM ASSETS
Property, Plant & Equipment	$190.0M	$79.14M	$78.47M
YoY Change	142.13%	7.66%	15.95%
Goodwill	$348.7M	$349.5M	$349.5M
YoY Change	-0.23%	-0.13%	-2.24%
Intangibles	$62.94M	$73.98M	$78.85M
YoY Change	-20.17%	-22.53%	-31.32%
Long-Term Investments	$2.991M	$2.484M	$2.555M
YoY Change	17.06%	-9.77%	-9.53%
Other Assets	$34.28M	$36.02M	$32.97M
YoY Change	3.98%	16.12%	0.57%
Total Long-Term Assets	$654.4M	$641.8M	$639.8M
YoY Change	2.29%	14.2%	8.19%
TOTAL ASSETS
Total Short-Term Assets	$565.1M	$541.3M	$506.2M
Total Long-Term Assets	$654.4M	$641.8M	$639.8M
Total Assets	$1.219B	$1.183B	$1.146B
YoY Change	6.41%	11.41%	9.65%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$6.213M	$6.564M	$3.658M
YoY Change	69.85%	16.12%	-15.13%
Accrued Expenses	$73.04M	$74.02M	$69.88M
YoY Change	4.53%	15.35%	4.16%
Deferred Revenue	$13.56M	$13.44M	$9.585M
YoY Change	41.49%	74.0%	26.12%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$10.47M	$40.87M	$20.88M
YoY Change	-49.83%	90.76%	69.48%
Total Short-Term Liabilities	$184.9M	$229.3M	$187.9M
YoY Change	-1.6%	47.88%	35.99%
LONG-TERM LIABILITIES
Long-Term Debt	$216.2M	$194.1M	$223.9M
YoY Change	-3.43%	-26.25%	-22.33%
Other Long-Term Liabilities	$16.38M	$12.14M	$1.998M
YoY Change	719.62%	-26.51%	79.68%
Total Long-Term Liabilities	$232.6M	$206.3M	$225.9M
YoY Change	2.96%	-26.27%	-21.94%
TOTAL LIABILITIES
Total Short-Term Liabilities	$184.9M	$229.3M	$187.9M
Total Long-Term Liabilities	$232.6M	$206.3M	$225.9M
Total Liabilities	$509.6M	$513.1M	$498.3M
YoY Change	2.26%	15.66%	5.87%
SHAREHOLDERS EQUITY
Retained Earnings	$609.2M	$551.9M	$530.5M
YoY Change	14.82%	13.97%	10.44%
Common Stock	$413.2M	$391.3M	$386.1M
YoY Change	7.01%	7.43%	11.99%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$227.2M	$188.3M	$182.8M
YoY Change	24.28%	28.15%	33.82%
Treasury Stock Shares	4.887M shares	4.295M shares	4.215M shares
Shareholders Equity	$709.9M	$670.0M	$647.7M
YoY Change
Total Liabilities & Shareholders Equity	$1.219B	$1.183B	$1.146B
YoY Change	6.41%	11.41%	9.65%

Cashflow Statement

Concept	2020 Q3	2019 Q4	2019 Q3
OPERATING ACTIVITIES
Net Income	$26.42M	$21.36M	$19.04M
YoY Change	38.72%	453.69%	24.89%
Depreciation, Depletion And Amortization	$9.012M	$12.60M	$7.545M
YoY Change	19.44%	-5.97%	2.22%
Cash From Operating Activities	$67.40M	$62.40M	$58.30M
YoY Change	15.61%	38.05%	74.55%
INVESTING ACTIVITIES
Capital Expenditures	-$12.50M	-$7.800M	-$10.00M
YoY Change	25.0%	-24.27%	-7.41%
Acquisitions
YoY Change
Other Investing Activities	$22.60M	-$22.20M	-$12.20M
YoY Change	-285.25%	-17.16%	-94.7%
Cash From Investing Activities	$10.00M	-$30.10M	-$22.30M
YoY Change	-144.84%	-18.87%	-90.74%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-35.00M	-15.40M	-16.60M
YoY Change	110.84%	55.56%	-107.42%
NET CHANGE
Cash From Operating Activities	67.40M	62.40M	58.30M
Cash From Investing Activities	10.00M	-30.10M	-22.30M
Cash From Financing Activities	-35.00M	-15.40M	-16.60M
Net Change In Cash	42.40M	16.90M	19.40M
YoY Change	118.56%	-1038.89%	19.75%
FREE CASH FLOW
Cash From Operating Activities	$67.40M	$62.40M	$58.30M
Capital Expenditures	-$12.50M	-$7.800M	-$10.00M
Free Cash Flow	$79.90M	$70.20M	$68.30M
YoY Change	16.98%	26.49%	54.52%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Entity Central Index Key EntityCentralIndexKey	0001297989
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2020
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Amendment Flag AmendmentFlag	false
	us-gaap	Accounting Standards Update Extensible List AccountingStandardsUpdateExtensibleList	us-gaap:AccountingStandardsUpdate201602Member
	dei	Document Type DocumentType	10-Q
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Period End Date DocumentPeriodEndDate	2020-09-30
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity File Number EntityFileNumber	001-33089
	dei	Entity Registrant Name EntityRegistrantName	EXLSERVICE HOLDINGS, INC.
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	82-0572194
	dei	Entity Address Address Line1 EntityAddressAddressLine1	320 Park Avenue,
	dei	Entity Address Address Line2 EntityAddressAddressLine2	29th Floor,
	dei	Entity Address City Or Town EntityAddressCityOrTown	New York,
	dei	Entity Address State Or Province EntityAddressStateOrProvince	NY
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	10022
	dei	City Area Code CityAreaCode	212
	dei	Local Phone Number LocalPhoneNumber	277-7100
	dei	Security12b Title Security12bTitle	Common Stock, par value $0.001 per share
	dei	Trading Symbol TradingSymbol	EXLS
	dei	Security Exchange Name SecurityExchangeName	NASDAQ
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	dei	Entity Small Business EntitySmallBusiness	false
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
	dei	Entity Shell Company EntityShellCompany	false
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CY2019Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	4563000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	9239000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	13088000	USD
CY2020Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	34979000	USD
CY2019Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	24814000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	75867000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	59072000	USD
CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8490000	USD
CY2019Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5701000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	18416000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	12571000	USD
CY2020Q3	exls	Income Loss From Continuing Operations Before Equity Method Investments Total IncomeLossFromContinuingOperationsBeforeEquityMethodInvestmentsTotal	26489000	USD
CY2019Q3	exls	Income Loss From Continuing Operations Before Equity Method Investments Total IncomeLossFromContinuingOperationsBeforeEquityMethodInvestmentsTotal	19113000	USD
	exls	Income Loss From Continuing Operations Before Equity Method Investments Total IncomeLossFromContinuingOperationsBeforeEquityMethodInvestmentsTotal	57451000	USD
	exls	Income Loss From Continuing Operations Before Equity Method Investments Total IncomeLossFromContinuingOperationsBeforeEquityMethodInvestmentsTotal	46501000	USD
CY2020Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-71000	USD
CY2019Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-69000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-193000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-198000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	26418000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	19044000	USD
	us-gaap	Net Income Loss NetIncomeLoss	57258000	USD
	us-gaap	Net Income Loss NetIncomeLoss	46303000	USD
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.77
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.55
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.66
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.35
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.76
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.55
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.65
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.33
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	34327477	shares
CY2019Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	34322449	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	34404798	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	34382787	shares
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	34536049	shares
CY2019Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	34699497	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	34617830	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	34744968	shares
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	26418000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	19044000	USD
	us-gaap	Net Income Loss NetIncomeLoss	57258000	USD
	us-gaap	Net Income Loss NetIncomeLoss	46303000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	12165000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	-3574000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	5040000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification After Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax	5631000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	11327000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-10065000	USD
	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	524000	USD
	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-5662000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	-435000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	1704000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	-633000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	3259000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	-98000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	40000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	-296000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	119000	USD
CY2020Q3	us-gaap	Reclassification From Aoci Current Period Tax ReclassificationFromAociCurrentPeriodTax	-4968000	USD
CY2019Q3	us-gaap	Reclassification From Aoci Current Period Tax ReclassificationFromAociCurrentPeriodTax	3588000	USD
	us-gaap	Reclassification From Aoci Current Period Tax ReclassificationFromAociCurrentPeriodTax	-6818000	USD
	us-gaap	Reclassification From Aoci Current Period Tax ReclassificationFromAociCurrentPeriodTax	723000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	19057000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-11795000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-325000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-2686000	USD
CY2020Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	45475000	USD
CY2019Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	7249000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	56933000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	43617000	USD
CY2020Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	680928000	USD
CY2020Q3	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	85000	USD
CY2020Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	8346000	USD
CY2020Q3	exls	Acquisition Of Treasury Stock Value AcquisitionOfTreasuryStockValue	24906000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	19057000	USD
CY2020Q3	us-gaap	Profit Loss ProfitLoss	26418000	USD
CY2020Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	709928000	USD
CY2019Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	641353000	USD
CY2019Q3	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	0	USD
CY2019Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	7427000	USD
CY2019Q3	exls	Acquisition Of Treasury Stock Value AcquisitionOfTreasuryStockValue	8346000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-11795000	USD
CY2019Q3	us-gaap	Profit Loss ProfitLoss	19044000	USD
CY2019Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	647683000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	670001000	USD
	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	1045000	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	20850000	USD
	exls	Acquisition Of Treasury Stock Value AcquisitionOfTreasuryStockValue	38901000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-325000	USD
	us-gaap	Profit Loss ProfitLoss	57258000	USD
CY2020Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	709928000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	618319000	USD
	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	338000	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	21538000	USD
	exls	Acquisition Of Treasury Stock Value AcquisitionOfTreasuryStockValue	35884000	USD
	us-gaap	Adjustments To Additional Paid In Capital Equity Component Of Convertible Debt AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt	-13000	USD
	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	232000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-2686000	USD
	us-gaap	Profit Loss ProfitLoss	46303000	USD
CY2019Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	647683000	USD
	us-gaap	Net Income Loss NetIncomeLoss	57258000	USD
	us-gaap	Net Income Loss NetIncomeLoss	46303000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	37249000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	39633000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	20850000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	21538000	USD
	exls	Amortization Of Operating Lease Right Of Use Asset AmortizationOfOperatingLeaseRightOfUseAsset	20484000	USD
	exls	Amortization Of Operating Lease Right Of Use Asset AmortizationOfOperatingLeaseRightOfUseAsset	20544000	USD
	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	4807000	USD
	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	7443000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	437000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	-19000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-1572000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-6859000	USD
	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	353000	USD
	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	433000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-193000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-198000	USD
	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	1943000	USD
	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	1836000	USD
	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	USD
	us-gaap	Asset Impairment Charges AssetImpairmentCharges	3167000	USD
	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	935000	USD
	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	148000	USD
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-16078000	USD
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	16475000	USD
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-1498000	USD
	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-752000	USD
	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	7001000	USD
	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	6212000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-3096000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	1307000	USD
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-490000	USD
	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-1847000	USD
	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	295000	USD
	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	3247000	USD
	us-gaap	Increase Decrease In Other Employee Related Liabilities IncreaseDecreaseInOtherEmployeeRelatedLiabilities	-11854000	USD
	us-gaap	Increase Decrease In Other Employee Related Liabilities IncreaseDecreaseInOtherEmployeeRelatedLiabilities	3420000	USD
	us-gaap	Increase Decrease In Other Accounts Payable And Accrued Liabilities IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities	-109000	USD
	us-gaap	Increase Decrease In Other Accounts Payable And Accrued Liabilities IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities	12160000	USD
	exls	Increase Decreasein Operating Lease Liability IncreaseDecreaseinOperatingLeaseLiability	-19780000	USD
	exls	Increase Decreasein Operating Lease Liability IncreaseDecreaseinOperatingLeaseLiability	-19428000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	126314000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	105955000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	34614000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	32462000	USD
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	624000	USD
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	154000	USD
	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	700000	USD
	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	0	USD
	us-gaap	Payments To Acquire Additional Interest In Subsidiaries PaymentsToAcquireAdditionalInterestInSubsidiaries	0	USD
	us-gaap	Payments To Acquire Additional Interest In Subsidiaries PaymentsToAcquireAdditionalInterestInSubsidiaries	241000	USD
	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	57965000	USD
	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	117934000	USD
	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	103718000	USD
	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	129143000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	11063000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-21340000	USD
	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	180000	USD
	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	274000	USD
	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	110000000	USD
	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	46000000	USD
	us-gaap	Repayments Of Debt RepaymentsOfDebt	120393000	USD
	us-gaap	Repayments Of Debt RepaymentsOfDebt	87763000	USD
	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0	USD
	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	117000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	38901000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	35884000	USD
	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	1045000	USD
	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	338000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-48429000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-77700000	USD
	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	20000	USD
	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-1761000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	88968000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	5154000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	127044000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	104131000	USD
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	216012000	USD
CY2019Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	109285000	USD
	us-gaap	Use Of Estimates UseOfEstimates	<div style="text-align:justify;text-indent:22.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:115%">The preparation of the unaudited consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the unaudited consolidated financial statements and the unaudited consolidated statements of income during the reporting period. Although these estimates are based on management’s best assessment of the current business environment, actual results may be different from those estimates. The significant estimates and assumptions that affect the unaudited consolidated financial statements include, but are not limited to, allowance for expected credit losses, expected recoverability from customers with contingent fee arrangements, recoverability of dues from statutory authorities, assets and obligations related to employee benefit plans, deferred tax valuation allowances, income-tax uncertainties and other contingencies, valuation of derivative financial instruments, assumptions used to calculate stock-based compensation expense, assumptions used to determine the incremental borrowing rate to calculate lease liabilities and right-of-use (“ROU”) assets, lease term to calculate lease cost, depreciation and amortization periods, purchase price allocation, recoverability of long-lived assets including goodwill and intangibles, and estimated costs to complete fixed price contracts. </span></div><div style="text-align:justify;text-indent:22.5pt"><span><br/></span></div><div style="text-align:justify;text-indent:22.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:115%">As of September 30, 2020, the extent to which the global Coronavirus Disease 2019 pandemic (“COVID-19”) will ultimately impact the Company's business depends on numerous dynamic factors, which the Company still cannot reliably predict. As a result, many of the Company's estimates and assumptions herein required increased judgment and carry a higher degree of variability and volatility. As events continue to evolve with respect to COVID-19, the Company’s estimates may materially change in future periods. Any changes in estimates are adjusted prospectively in the Company’s consolidated financial statements.</span></div>
CY2019Q1	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	80328000	USD
CY2019Q1	us-gaap	Accrued Rent Current And Noncurrent AccruedRentCurrentAndNoncurrent	8626000	USD
CY2019Q1	us-gaap	Operating Lease Liability OperatingLeaseLiability	88954000	USD
	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	ReclassificationCertain reclassifications have been made in the consolidated financial statements of prior periods to conform to the classification used in the current period. The impact of such reclassifications on the consolidated financial statements is not material.
	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	4	operating_segment
CY2020Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	241018000	USD
CY2020Q3	us-gaap	Cost Of Goods And Service Excluding Depreciation Depletion And Amortization CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization	152087000	USD
CY2020Q3	us-gaap	Gross Profit GrossProfit	88931000	USD
CY2020Q3	us-gaap	Operating Expenses OperatingExpenses	54525000	USD
CY2020Q3	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	573000	USD
CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8490000	USD
CY2020Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-71000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	26418000	USD
CY2019Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	251392000	USD
CY2019Q3	us-gaap	Cost Of Goods And Service Excluding Depreciation Depletion And Amortization CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization	167542000	USD
CY2019Q3	us-gaap	Gross Profit GrossProfit	83850000	USD
CY2019Q3	us-gaap	Operating Expenses OperatingExpenses	61428000	USD
CY2019Q3	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	2392000	USD
CY2019Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5701000	USD
CY2019Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-69000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	19044000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	709481000	USD
	us-gaap	Cost Of Goods And Service Excluding Depreciation Depletion And Amortization CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization	473144000	USD
	us-gaap	Gross Profit GrossProfit	236337000	USD
	us-gaap	Operating Expenses OperatingExpenses	164578000	USD
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	4108000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	18416000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-193000	USD
	us-gaap	Net Income Loss NetIncomeLoss	57258000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	734474000	USD
	us-gaap	Cost Of Goods And Service Excluding Depreciation Depletion And Amortization CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization	487228000	USD
	us-gaap	Gross Profit GrossProfit	247246000	USD
	us-gaap	Operating Expenses OperatingExpenses	194107000	USD
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	5933000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	12571000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-198000	USD
	us-gaap	Net Income Loss NetIncomeLoss	46303000	USD
CY2020Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	241018000	USD
CY2019Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	251392000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	709481000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	734474000	USD
CY2020Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	241018000	USD
CY2019Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	251392000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	709481000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	734474000	USD
CY2020Q3	us-gaap	Noncurrent Assets NoncurrentAssets	189976000	USD
CY2019Q4	us-gaap	Noncurrent Assets NoncurrentAssets	165538000	USD
CY2020Q3	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	154983000	USD
CY2019Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	171864000	USD
CY2020Q3	us-gaap	Contract With Customer Asset Gross ContractWithCustomerAssetGross	4742000	USD
CY2019Q4	us-gaap	Contract With Customer Asset Gross ContractWithCustomerAssetGross	5391000	USD
CY2020Q3	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	11600000	USD
CY2019Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	11259000	USD
CY2020Q3	exls	Contract From Customer Liability Consideration Received From Transitions Activities ContractFromCustomerLiabilityConsiderationReceivedFromTransitionsActivities	3187000	USD
CY2019Q4	exls	Contract From Customer Liability Consideration Received From Transitions Activities ContractFromCustomerLiabilityConsiderationReceivedFromTransitionsActivities	3036000	USD
CY2020Q3	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	74386000	USD
CY2019Q4	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	73920000	USD
CY2020Q3	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	1611000	USD
CY2019Q3	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	1086000	USD
	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	9805000	USD
	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	5312000	USD
CY2020Q3	us-gaap	Accounts Receivable Gross AccountsReceivableGross	156383000	USD
CY2020Q1	us-gaap	Accounts Receivable Gross AccountsReceivableGross	173027000	USD
CY2020Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1400000	USD
CY2020Q1	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1163000	USD
CY2020Q3	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	154983000	USD
CY2020Q1	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	171864000	USD
CY2020Q2	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1434000	USD
CY2019Q2	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1168000	USD
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1163000	USD
CY2018Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	956000	USD
CY2018Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	956000	USD
CY2020Q3	exls	Accounts Receivable Credit Loss Expense Reversal And Other Writeoffs AccountsReceivableCreditLossExpenseReversalAndOtherWriteoffs	-36000	USD
CY2019Q3	exls	Accounts Receivable Credit Loss Expense Reversal And Other Writeoffs AccountsReceivableCreditLossExpenseReversalAndOtherWriteoffs	-57000	USD
	exls	Accounts Receivable Credit Loss Expense Reversal And Other Writeoffs AccountsReceivableCreditLossExpenseReversalAndOtherWriteoffs	345000	USD
	exls	Accounts Receivable Credit Loss Expense Reversal And Other Writeoffs AccountsReceivableCreditLossExpenseReversalAndOtherWriteoffs	208000	USD
CY2019	exls	Accounts Receivable Credit Loss Expense Reversal And Other Writeoffs AccountsReceivableCreditLossExpenseReversalAndOtherWriteoffs	354000	USD
CY2020Q3	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	0	USD
CY2019Q3	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	1000	USD
	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	100000	USD
	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	55000	USD
CY2019	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	156000	USD
CY2020Q3	exls	Accounts Receivable Allowancefor Credit Loss Foreign Currency Translation AccountsReceivableAllowanceforCreditLossForeignCurrencyTranslation	-2000	USD
CY2019Q3	exls	Accounts Receivable Allowancefor Credit Loss Foreign Currency Translation AccountsReceivableAllowanceforCreditLossForeignCurrencyTranslation	-3000	USD
	exls	Accounts Receivable Allowancefor Credit Loss Foreign Currency Translation AccountsReceivableAllowanceforCreditLossForeignCurrencyTranslation	8000	USD
	exls	Accounts Receivable Allowancefor Credit Loss Foreign Currency Translation AccountsReceivableAllowanceforCreditLossForeignCurrencyTranslation	-4000	USD
CY2019	exls	Accounts Receivable Allowancefor Credit Loss Foreign Currency Translation AccountsReceivableAllowanceforCreditLossForeignCurrencyTranslation	-9000	USD
CY2020Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1400000	USD
CY2019Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1113000	USD
CY2020Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1400000	USD
CY2019Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1113000	USD
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	1163000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	26418000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	19044000	USD
	us-gaap	Net Income Loss NetIncomeLoss	57258000	USD
	us-gaap	Net Income Loss NetIncomeLoss	46303000	USD
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	34327477	shares
CY2019Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	34322449	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	34404798	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	34382787	shares
CY2020Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	208572	shares
CY2019Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	377048	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	213032	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	362181	shares
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	34536049	shares
CY2019Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	34699497	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	34617830	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	34744968	shares
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.77
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.55
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.66
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.35
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.76
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.55
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.65
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.33
CY2020Q3	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	347126	shares
CY2019Q3	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	385252	shares
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	141834	shares
CY2020Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	206423000	USD
CY2019Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	101432000	USD
CY2020Q3	us-gaap	Restricted Cash Current RestrictedCashCurrent	7312000	USD
CY2019Q3	us-gaap	Restricted Cash Current RestrictedCashCurrent	5412000	USD
CY2020Q3	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	2277000	USD
CY2019Q3	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	2441000	USD
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	216012000	USD
CY2019Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	109285000	USD
CY2020Q3	us-gaap	Investment Income Interest InvestmentIncomeInterest	1965000	USD
CY2019Q3	us-gaap	Investment Income Interest InvestmentIncomeInterest	3216000	USD
	us-gaap	Investment Income Interest InvestmentIncomeInterest	7131000	USD
	us-gaap	Investment Income Interest InvestmentIncomeInterest	10060000	USD
CY2020Q3	us-gaap	Gain Loss On Investments GainLossOnInvestments	777000	USD
CY2019Q3	us-gaap	Gain Loss On Investments GainLossOnInvestments	489000	USD
	us-gaap	Gain Loss On Investments GainLossOnInvestments	1941000	USD
	us-gaap	Gain Loss On Investments GainLossOnInvestments	1982000	USD
CY2020Q3	exls	Other Miscellaneous Nonoperating Income Expense OtherMiscellaneousNonoperatingIncomeExpense	-257000	USD
CY2019Q3	exls	Other Miscellaneous Nonoperating Income Expense OtherMiscellaneousNonoperatingIncomeExpense	858000	USD
	exls	Other Miscellaneous Nonoperating Income Expense OtherMiscellaneousNonoperatingIncomeExpense	167000	USD
	exls	Other Miscellaneous Nonoperating Income Expense OtherMiscellaneousNonoperatingIncomeExpense	1046000	USD
CY2020Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	2485000	USD
CY2019Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	4563000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	9239000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	13088000	USD
CY2020Q3	us-gaap	Property Plant And Equipment Gross Excluding Capital Leased Assets PropertyPlantAndEquipmentGrossExcludingCapitalLeasedAssets	276811000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Gross Excluding Capital Leased Assets PropertyPlantAndEquipmentGrossExcludingCapitalLeasedAssets	257836000	USD
CY2020Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment Excluding Capital Leased Assets AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipmentExcludingCapitalLeasedAssets	183230000	USD
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment Excluding Capital Leased Assets AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipmentExcludingCapitalLeasedAssets	179331000	USD
CY2020Q3	us-gaap	Property Plant And Equipment Net Excluding Capital Leased Assets PropertyPlantAndEquipmentNetExcludingCapitalLeasedAssets	93581000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net Excluding Capital Leased Assets PropertyPlantAndEquipmentNetExcludingCapitalLeasedAssets	78505000	USD
CY2020Q3	us-gaap	Finance Lease Right Of Use Asset Before Accumulated Amortization FinanceLeaseRightOfUseAssetBeforeAccumulatedAmortization	1626000	USD
CY2019Q4	us-gaap	Finance Lease Right Of Use Asset Before Accumulated Amortization FinanceLeaseRightOfUseAssetBeforeAccumulatedAmortization	1757000	USD
CY2020Q3	exls	Finance Lease Rightof Use Accumulated Amortization FinanceLeaseRightofUseAccumulatedAmortization	1104000	USD
CY2019Q4	exls	Finance Lease Rightof Use Accumulated Amortization FinanceLeaseRightofUseAccumulatedAmortization	1120000	USD
CY2020Q3	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	522000	USD
CY2019Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	637000	USD
CY2020Q3	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	94103000	USD
CY2019Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	79142000	USD
CY2020Q3	us-gaap	Depreciation Depreciation	9012000	USD
CY2019Q3	us-gaap	Depreciation Depreciation	7545000	USD
	us-gaap	Depreciation Depreciation	26283000	USD
	us-gaap	Depreciation Depreciation	22882000	USD
CY2020Q3	us-gaap	Capitalized Computer Software Gross CapitalizedComputerSoftwareGross	17936000	USD
CY2019Q4	us-gaap	Capitalized Computer Software Gross CapitalizedComputerSoftwareGross	15784000	USD
CY2020Q3	us-gaap	Capitalized Computer Software Accumulated Amortization CapitalizedComputerSoftwareAccumulatedAmortization	4992000	USD
CY2019Q4	us-gaap	Capitalized Computer Software Accumulated Amortization CapitalizedComputerSoftwareAccumulatedAmortization	4989000	USD
CY2020Q3	us-gaap	Capitalized Computer Software Net CapitalizedComputerSoftwareNet	12944000	USD
CY2019Q4	us-gaap	Capitalized Computer Software Net CapitalizedComputerSoftwareNet	10795000	USD
CY2020Q3	us-gaap	Capitalized Computer Software Amortization1 CapitalizedComputerSoftwareAmortization1	1215000	USD
CY2019Q3	us-gaap	Capitalized Computer Software Amortization1 CapitalizedComputerSoftwareAmortization1	746000	USD
	us-gaap	Capitalized Computer Software Amortization1 CapitalizedComputerSoftwareAmortization1	3892000	USD
	us-gaap	Capitalized Computer Software Amortization1 CapitalizedComputerSoftwareAmortization1	1952000	USD
	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	USD
CY2019Q3	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	USD
	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	2178000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	349984000	USD
CY2019	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	-455000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	349529000	USD
	us-gaap	Goodwill Transfers GoodwillTransfers	0	USD
	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	-806000	USD
CY2020Q3	us-gaap	Goodwill Goodwill	348723000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	101754000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	39713000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	62041000	USD
CY2020Q3	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	102654000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	39713000	USD
CY2020Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	62941000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	129678000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	56596000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	73082000	USD
CY2019Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	130578000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	56596000	USD
CY2019Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	73982000	USD
CY2020Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	3413000	USD
CY2019Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	5502000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	10997000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	16584000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Remainder Of Fiscal Year FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear	3417000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	12744000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	11331000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	9042000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	6700000	USD
CY2020Q3	exls	Finite Lived Intangible Asset Expected Amortization After Year Four FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour	18807000	USD
CY2020Q3	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	62041000	USD
CY2020Q3	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	7514000	USD
CY2019Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	4076000	USD
CY2020Q3	us-gaap	Supplies Supplies	2532000	USD
CY2019Q4	us-gaap	Supplies Supplies	1581000	USD
CY2020Q3	exls	Service Taxes Receivable Current ServiceTaxesReceivableCurrent	14250000	USD
CY2019Q4	exls	Service Taxes Receivable Current ServiceTaxesReceivableCurrent	12608000	USD
CY2020Q3	us-gaap	Contract With Customer Asset Gross Current ContractWithCustomerAssetGrossCurrent	1773000	USD
CY2019Q4	us-gaap	Contract With Customer Asset Gross Current ContractWithCustomerAssetGrossCurrent	1414000	USD
CY2020Q3	exls	Deferred Contract Acquisition Costs Current DeferredContractAcquisitionCostsCurrent	2059000	USD
CY2019Q4	exls	Deferred Contract Acquisition Costs Current DeferredContractAcquisitionCostsCurrent	1673000	USD
CY2020Q3	us-gaap	Interest Receivable Current InterestReceivableCurrent	149000	USD
CY2019Q4	us-gaap	Interest Receivable Current InterestReceivableCurrent	439000	USD
CY2020Q3	us-gaap	Other Assets Miscellaneous Current OtherAssetsMiscellaneousCurrent	2507000	USD
CY2019Q4	us-gaap	Other Assets Miscellaneous Current OtherAssetsMiscellaneousCurrent	2803000	USD
CY2020Q3	us-gaap	Other Assets Current OtherAssetsCurrent	30784000	USD
CY2019Q4	us-gaap	Other Assets Current OtherAssetsCurrent	24594000	USD
CY2020Q3	us-gaap	Security Deposit SecurityDeposit	10106000	USD
CY2019Q4	us-gaap	Security Deposit SecurityDeposit	9983000	USD
CY2020Q3	us-gaap	Derivative Assets DerivativeAssets	4438000	USD
CY2019Q4	us-gaap	Derivative Assets DerivativeAssets	3433000	USD
CY2020Q3	us-gaap	Deposit Assets DepositAssets	6280000	USD
CY2019Q4	us-gaap	Deposit Assets DepositAssets	6237000	USD
CY2020Q3	us-gaap	Time Deposits At Carrying Value TimeDepositsAtCarryingValue	1900000	USD
CY2019Q4	us-gaap	Time Deposits At Carrying Value TimeDepositsAtCarryingValue	1983000	USD
CY2020Q3	us-gaap	Contract With Customer Asset Gross Noncurrent ContractWithCustomerAssetGrossNoncurrent	2969000	USD
CY2019Q4	us-gaap	Contract With Customer Asset Gross Noncurrent ContractWithCustomerAssetGrossNoncurrent	3977000	USD
CY2020Q3	exls	Deferred Contract Acquisition Costs Non Current DeferredContractAcquisitionCostsNonCurrent	4374000	USD
CY2019Q4	exls	Deferred Contract Acquisition Costs Non Current DeferredContractAcquisitionCostsNonCurrent	5582000	USD
CY2020Q3	us-gaap	Other Assets Miscellaneous OtherAssetsMiscellaneous	4213000	USD
CY2019Q4	us-gaap	Derivative Instruments And Hedges Liabilities DerivativeInstrumentsAndHedgesLiabilities	1783000	USD
CY2020Q3	srt	Payables To Customers PayablesToCustomers	7506000	USD
CY2019Q4	us-gaap	Other Assets Miscellaneous OtherAssetsMiscellaneous	4821000	USD
CY2020Q3	us-gaap	Other Assets OtherAssets	34280000	USD
CY2019Q4	us-gaap	Other Assets OtherAssets	36016000	USD
CY2020Q3	exls	Accrued Expenses Current AccruedExpensesCurrent	41776000	USD
CY2019Q4	exls	Accrued Expenses Current AccruedExpensesCurrent	50097000	USD
CY2020Q3	exls	Statutory Authority Payables Current StatutoryAuthorityPayablesCurrent	10189000	USD
CY2019Q4	exls	Statutory Authority Payables Current StatutoryAuthorityPayablesCurrent	9247000	USD
CY2020Q3	exls	Capital Expenditure Liability Current CapitalExpenditureLiabilityCurrent	7413000	USD
CY2019Q4	exls	Capital Expenditure Liability Current CapitalExpenditureLiabilityCurrent	3035000	USD
CY2020Q3	us-gaap	Derivative Instruments And Hedges Liabilities DerivativeInstrumentsAndHedgesLiabilities	1207000	USD
CY2019Q4	srt	Payables To Customers PayablesToCustomers	6378000	USD
CY2020Q3	us-gaap	Interest Payable Current InterestPayableCurrent	2725000	USD
CY2019Q4	us-gaap	Interest Payable Current InterestPayableCurrent	1492000	USD
CY2020Q3	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	1978000	USD
CY2019Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	1732000	USD
CY2020Q3	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	249000	USD
CY2019Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	253000	USD
CY2020Q3	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	73043000	USD
CY2019Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	74017000	USD
CY2020Q3	us-gaap	Derivative Instruments And Hedges Liabilities Noncurrent DerivativeInstrumentsAndHedgesLiabilitiesNoncurrent	544000	USD
CY2019Q4	us-gaap	Derivative Instruments And Hedges Liabilities Noncurrent DerivativeInstrumentsAndHedgesLiabilitiesNoncurrent	1250000	USD
CY2020Q3	us-gaap	Liability For Uncertain Tax Positions Noncurrent LiabilityForUncertainTaxPositionsNoncurrent	1047000	USD
CY2019Q4	us-gaap	Liability For Uncertain Tax Positions Noncurrent LiabilityForUncertainTaxPositionsNoncurrent	1047000	USD
CY2020Q3	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	4119000	USD
CY2019Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	6517000	USD
CY2020Q3	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	2026000	USD
CY2019Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	1911000	USD
CY2020Q3	exls	Capital Expenditure Liability Noncurrent CapitalExpenditureLiabilityNoncurrent	3452000	USD
CY2019Q4	exls	Capital Expenditure Liability Noncurrent CapitalExpenditureLiabilityNoncurrent	0	USD
CY2020Q3	us-gaap	Other Sundry Liabilities Noncurrent OtherSundryLiabilitiesNoncurrent	4867000	USD
CY2019Q4	us-gaap	Other Sundry Liabilities Noncurrent OtherSundryLiabilitiesNoncurrent	987000	USD
CY2020Q3	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	321000	USD
CY2019Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	430000	USD
CY2020Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	16376000	USD
CY2019Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	12142000	USD
CY2020Q3	us-gaap	Aoci Including Portion Attributable To Noncontrolling Interest Tax AociIncludingPortionAttributableToNoncontrollingInterestTax	7571000	USD
CY2019Q4	us-gaap	Aoci Including Portion Attributable To Noncontrolling Interest Tax AociIncludingPortionAttributableToNoncontrollingInterestTax	753000	USD
	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2019	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
	us-gaap	Cash Flow Hedge Gain Loss To Be Reclassified Within Twelve Months CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths	6383000	USD
CY2020Q3	us-gaap	Cost Of Goods And Service Excluding Depreciation Depletion And Amortization CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization	152087000	USD
CY2019Q3	us-gaap	Cost Of Goods And Service Excluding Depreciation Depletion And Amortization CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization	167542000	USD
CY2020Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	26810000	USD
CY2019Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	29590000	USD
CY2020Q3	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	15290000	USD
CY2019Q3	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	18302000	USD
CY2020Q3	us-gaap	Depreciation And Amortization DepreciationAndAmortization	12425000	USD
CY2019Q3	us-gaap	Depreciation And Amortization DepreciationAndAmortization	13047000	USD
CY2020Q3	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	716000	USD
CY2019Q3	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	1009000	USD
CY2020Q3	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	716000	USD
CY2019Q3	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	1009000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	84501000	USD
	us-gaap	Cost Of Goods And Service Excluding Depreciation Depletion And Amortization CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization	473144000	USD
	us-gaap	Cost Of Goods And Service Excluding Depreciation Depletion And Amortization CostOfGoodsAndServiceExcludingDepreciationDepletionAndAmortization	487228000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	93349000	USD
	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	42797000	USD
	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	53996000	USD
	us-gaap	Depreciation And Amortization DepreciationAndAmortization	37280000	USD
	us-gaap	Depreciation And Amortization DepreciationAndAmortization	39466000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	3452000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	3471000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	3452000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	3471000	USD
CY2020Q3	us-gaap	Long Term Debt Current LongTermDebtCurrent	10474000	USD
CY2020Q3	exls	Long Term Debt Gross Excluding Current Maturities LongTermDebtGrossExcludingCurrentMaturities	229000000	USD
CY2020Q3	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	11908000	USD
CY2020Q3	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	857000	USD
CY2020Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	216235000	USD
CY2020Q3	us-gaap	Long Term Debt LongTermDebt	226709000	USD
CY2019Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	40867000	USD
CY2019Q4	exls	Long Term Debt Gross Excluding Current Maturities LongTermDebtGrossExcludingCurrentMaturities	209000000	USD
CY2019Q4	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	13851000	USD
CY2019Q4	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	1018000	USD
CY2019Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	194131000	USD
CY2019Q4	us-gaap	Long Term Debt LongTermDebt	234998000	USD
CY2020Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal Remainder Of Fiscal Year LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear	474000	USD
CY2020Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	10000000	USD
CY2019Q3	us-gaap	Accelerated Share Repurchases Final Price Paid Per Share AcceleratedShareRepurchasesFinalPricePaidPerShare	0
CY2020Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	79000000	USD
CY2020Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	0	USD
CY2020Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	150000000	USD
CY2020Q3	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	239474000	USD
CY2020Q3	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	461000	USD
CY2019Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	461000	USD
	exls	Number Of Classes Of Common Stock Outstanding NumberOfClassesOfCommonStockOutstanding	1	class_of_common_stock
CY2020Q3	us-gaap	Shares Paid For Tax Withholding For Share Based Compensation SharesPaidForTaxWithholdingForShareBasedCompensation	0	shares
CY2020Q3	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	0	USD
CY2020Q3	us-gaap	Accelerated Share Repurchases Final Price Paid Per Share AcceleratedShareRepurchasesFinalPricePaidPerShare	0
CY2019Q3	us-gaap	Shares Paid For Tax Withholding For Share Based Compensation SharesPaidForTaxWithholdingForShareBasedCompensation	0	shares
CY2019Q3	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	0	USD
	us-gaap	Shares Paid For Tax Withholding For Share Based Compensation SharesPaidForTaxWithholdingForShareBasedCompensation	26601	shares
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	2012000	USD
	us-gaap	Accelerated Share Repurchases Final Price Paid Per Share AcceleratedShareRepurchasesFinalPricePaidPerShare	75.63
	us-gaap	Shares Paid For Tax Withholding For Share Based Compensation SharesPaidForTaxWithholdingForShareBasedCompensation	22666	shares
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	1408000	USD
	us-gaap	Accelerated Share Repurchases Final Price Paid Per Share AcceleratedShareRepurchasesFinalPricePaidPerShare	62.11
CY2020Q3	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	389575	shares
CY2020Q3	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	24906000	USD
CY2020Q3	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	63.93
CY2019Q3	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	125744	shares
CY2019Q3	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	8346000	USD
CY2019Q3	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	66.38
	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	565340	shares
	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	36889000	USD
	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	65.25
	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	563769	shares
	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	34476000	USD
	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	61.15
CY2020Q3	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	679000	USD
CY2019Q3	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	488000	USD
	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	2021000	USD
	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	1468000	USD
CY2020Q3	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	242000	USD
CY2019Q3	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	219000	USD
	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	722000	USD
	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	659000	USD
CY2020Q3	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	159000	USD
CY2019Q3	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	142000	USD
	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	477000	USD
	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	428000	USD
CY2020Q3	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-98000	USD
CY2019Q3	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	40000	USD
	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-296000	USD
	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	119000	USD
CY2020Q3	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	860000	USD
CY2019Q3	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	525000	USD
	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	2562000	USD
	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	1580000	USD
	exls	Defined Benefit Plan Expected Return On Plan Assets Percentage DefinedBenefitPlanExpectedReturnOnPlanAssetsPercentage	0.070
CY2019Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	8784000	USD
	us-gaap	Defined Benefit Plan Actual Return On Plan Assets DefinedBenefitPlanActualReturnOnPlanAssets	506000	USD
	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	3072000	USD
	us-gaap	Defined Benefit Plan Plan Assets Benefits Paid DefinedBenefitPlanPlanAssetsBenefitsPaid	634000	USD
	us-gaap	Defined Benefit Plan Plan Assets Foreign Currency Translation Gain Loss DefinedBenefitPlanPlanAssetsForeignCurrencyTranslationGainLoss	-267000	USD
CY2020Q3	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	11461000	USD
	us-gaap	Defined Contribution Plan Maximum Annual Contributions Per Employee Percent DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent	0.040
CY2020Q3	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	2661000	USD
CY2019Q3	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	779000	USD
	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	2916000	USD
	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	2901000	USD
CY2020Q3	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	2758000	USD
CY2019Q3	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	2849000	USD
	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	8382000	USD
	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	7665000	USD
CY2020Q3	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	522000	USD
CY2019Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	637000	USD
CY2020Q3	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	249000	USD
CY2020Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	95873000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	86396000	USD
CY2020Q3	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	19048000	USD
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	24148000	USD
CY2020Q3	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	89412000	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	74709000	USD
CY2020Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	108460000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	98857000	USD
CY2020Q3	us-gaap	Finance Lease Right Of Use Asset Before Accumulated Amortization FinanceLeaseRightOfUseAssetBeforeAccumulatedAmortization	1626000	USD
CY2019Q4	us-gaap	Finance Lease Right Of Use Asset Before Accumulated Amortization FinanceLeaseRightOfUseAssetBeforeAccumulatedAmortization	1757000	USD
CY2020Q3	exls	Finance Lease Rightof Use Accumulated Amortization FinanceLeaseRightofUseAccumulatedAmortization	1104000	USD
CY2019Q4	exls	Finance Lease Rightof Use Accumulated Amortization FinanceLeaseRightofUseAccumulatedAmortization	1120000	USD
CY2019Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	253000	USD
CY2020Q3	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	321000	USD
CY2019Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	430000	USD
CY2020Q3	us-gaap	Finance Lease Liability FinanceLeaseLiability	570000	USD
CY2019Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	683000	USD
CY2019Q3	us-gaap	Operating Lease Impairment Loss OperatingLeaseImpairmentLoss	0	USD
	us-gaap	Operating Lease Impairment Loss OperatingLeaseImpairmentLoss	989000	USD
CY2020Q3	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	52000	USD
CY2019Q3	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	68000	USD
	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	177000	USD
	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	198000	USD
CY2020Q3	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	10000	USD
CY2019Q3	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	26000	USD
	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	60000	USD
	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	71000	USD
CY2020Q3	exls	Finance Lease Cost FinanceLeaseCost	62000	USD
CY2019Q3	exls	Finance Lease Cost FinanceLeaseCost	94000	USD
	exls	Finance Lease Cost FinanceLeaseCost	237000	USD
	exls	Finance Lease Cost FinanceLeaseCost	269000	USD
CY2020Q3	us-gaap	Operating Lease Cost OperatingLeaseCost	6781000	USD
CY2019Q3	us-gaap	Operating Lease Cost OperatingLeaseCost	6843000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	20484000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	20544000	USD
CY2020Q3	us-gaap	Operating Lease Cost OperatingLeaseCost	6781000	USD
CY2019Q3	us-gaap	Operating Lease Cost OperatingLeaseCost	6843000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	20484000	USD
	us-gaap	Operating Lease Cost OperatingLeaseCost	20544000	USD
CY2020Q3	us-gaap	Sublease Income SubleaseIncome	0	USD
CY2019Q3	us-gaap	Sublease Income SubleaseIncome	29000	USD
	us-gaap	Sublease Income SubleaseIncome	0	USD
	us-gaap	Sublease Income SubleaseIncome	134000	USD
CY2020Q3	us-gaap	Lease Cost LeaseCost	6843000	USD
CY2019Q3	us-gaap	Lease Cost LeaseCost	6908000	USD
	us-gaap	Lease Cost LeaseCost	20721000	USD
	us-gaap	Lease Cost LeaseCost	20679000	USD
	us-gaap	Operating Lease Payments OperatingLeasePayments	19780000	USD
	us-gaap	Operating Lease Payments OperatingLeasePayments	19428000	USD
	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	60000	USD
	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	71000	USD
	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	180000	USD
	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	274000	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	19900000	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	31189000	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	90000	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	177000	USD
CY2020Q3	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P1Y10M24D
CY2019Q3	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P2Y3M18D
CY2020Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P6Y4M24D
CY2019Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P5Y10M24D
CY2020Q3	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.103
CY2019Q3	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.087
CY2020Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.075
CY2019Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.072
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	6837000	USD
CY2020Q3	us-gaap	Finance Lease Liability Payments Remainder Of Fiscal Year FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear	105000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	25974000	USD
CY2020Q3	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	273000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	24239000	USD
CY2020Q3	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	157000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	22112000	USD
CY2020Q3	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	110000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	17175000	USD
CY2020Q3	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	38000	USD
CY2020Q3	exls	Lessee Operating Lease Liability Payments Due After Year Four LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour	44698000	USD
CY2020Q3	exls	Finance Lease Liability Payments Due After Year Four FinanceLeaseLiabilityPaymentsDueAfterYearFour	6000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	141035000	USD
CY2020Q3	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	689000	USD
CY2020Q3	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	32575000	USD
CY2020Q3	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	119000	USD
CY2020Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	108460000	USD
CY2020Q3	us-gaap	Finance Lease Liability FinanceLeaseLiability	570000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	26932000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	325000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	23783000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	251000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	21526000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	157000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	19381000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	86000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	14865000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	22000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	23983000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	0	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	130470000	USD
CY2019Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	841000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	31613000	USD
CY2019Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	158000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	98857000	USD
CY2019Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	683000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax	-2775000	USD
CY2019Q3	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.230
CY2020Q3	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.243
CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8490000	USD
CY2019Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5701000	USD
CY2019Q3	exls	Effective Income Tax Rate Reconciliation Job Incentives Amount EffectiveIncomeTaxRateReconciliationJobIncentivesAmount	495000	USD
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.213
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.243
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	18416000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	12571000	USD
	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	1320000	USD
	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	-2520000	USD
	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	-1874000	USD
	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	-1094000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax	1636000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax	-669000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationTax	-20000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	-32000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	-9000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	216000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	-99000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	2161000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	-1961000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	6365000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	-842000	USD
CY2020Q3	us-gaap	Reclassification From Aoci Current Period Tax ReclassificationFromAociCurrentPeriodTax	-4968000	USD
CY2019Q3	us-gaap	Reclassification From Aoci Current Period Tax ReclassificationFromAociCurrentPeriodTax	3588000	USD
	us-gaap	Reclassification From Aoci Current Period Tax ReclassificationFromAociCurrentPeriodTax	-6818000	USD
	us-gaap	Reclassification From Aoci Current Period Tax ReclassificationFromAociCurrentPeriodTax	723000	USD
CY2020Q3	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	8346000	USD
CY2019Q3	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	7427000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	20850000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	21538000	USD
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	2327133	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	98161	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	23.39
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	4522000	USD
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P1Y10M9D
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0	shares
	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	0
	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	45742	shares
	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	22.85
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	2193000	USD
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	0	shares
	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	0
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	52419	shares
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	23.86
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	2207000	USD
	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P1Y4M13D
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber	52419	shares
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice	23.86
CY2020Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue	2207000	USD
	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1	P1Y4M13D
CY2020Q3	us-gaap	Purchase Commitment Remaining Minimum Amount Committed PurchaseCommitmentRemainingMinimumAmountCommitted	2700000	USD
	exls	Export Oriented Units Established Percentage ExportOrientedUnitsEstablishedPercentage	1
CY2020Q3	exls	Aggregate Disputed Amount Relatedto Transfer Pricingand Permanent Establishment AggregateDisputedAmountRelatedtoTransferPricingandPermanentEstablishment	16588000	USD
CY2019Q4	exls	Aggregate Disputed Amount Relatedto Transfer Pricingand Permanent Establishment AggregateDisputedAmountRelatedtoTransferPricingandPermanentEstablishment	16220000	USD
CY2020Q3	exls	Total Bank Guarantees And Deposits In Respect Of Contingencies TotalBankGuaranteesAndDepositsInRespectOfContingencies	8041000	USD
CY2019Q4	exls	Total Bank Guarantees And Deposits In Respect Of Contingencies TotalBankGuaranteesAndDepositsInRespectOfContingencies	8108000	USD
CY2020Q3	exls	Amounts Paid As Deposits In Respect Of Contingencies AmountsPaidAsDepositsInRespectOfContingencies	6245000	USD
CY2019Q4	exls	Amounts Paid As Deposits In Respect Of Contingencies AmountsPaidAsDepositsInRespectOfContingencies	6252000	USD
CY2020Q3	exls	Bank Guarantee Issued BankGuaranteeIssued	1796000	USD
CY2019Q4	exls	Bank Guarantee Issued BankGuaranteeIssued	1856000	USD

Files In Submission

Name	View Source	Status
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0001297989-20-000010-index.html	Edgar Link	pending
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$EXLS
ExlService Holdings, Inc. Stock $exls

2020 Q3 Form 10-Q Financial Statement

#000129798920000010 Filed on October 29, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$EXLS ExlService Holdings, Inc. Stock $exls

2020 Q3 Form 10-Q Financial Statement

#000129798920000010 Filed on October 29, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$EXLS
ExlService Holdings, Inc. Stock $exls