$CRTO
Criteo S.A. Stock $crto

$crto Overview Financials Valuation SEC Filings Company Website

2018 Form 10-K Financial Statement

#000157642719000014 Filed on March 01, 2019

Income Statement

Concept	2018	2017 Q4	2017
Revenue	$2.300B	$674.0M	$2.297B
YoY Change	0.16%	18.91%	27.65%
Cost Of Revenue	$1.466B	$428.8M	$1.477B
YoY Change	-0.75%	17.09%	27.99%
Gross Profit	$834.2M	$245.2M	$819.5M
YoY Change	1.8%	22.23%	27.06%
Gross Profit Margin	36.27%	36.38%	35.68%
Selling, General & Admin	$507.9M	$119.4M	$507.7M
YoY Change	0.03%	10.35%	26.83%
% of Gross Profit	60.88%	48.69%	61.96%
Research & Development	$179.3M	$41.50M	$173.9M
YoY Change	3.07%	24.25%	40.66%
% of Gross Profit	21.49%	16.92%	21.22%
Depreciation & Amortization	$78.19M	$31.30M	$66.06M
YoY Change	18.36%	83.04%	37.17%
% of Gross Profit	9.37%	12.77%	8.06%
Operating Expenses	$687.1M	$169.8M	$681.7M
YoY Change	0.8%	15.35%	30.09%
Operating Profit	$147.1M	$75.40M	$137.8M
YoY Change	6.72%	41.2%	13.92%
Interest Expense	$2.107M	-$2.200M	$2.856M
YoY Change	-26.23%	-257.14%	20.66%
% of Operating Profit	1.43%	-2.92%	2.07%
Other Income/Expense, Net	-$5.084M	$0.00	-$9.534M
YoY Change	-46.68%		1646.15%
Pretax Income	$142.0M	$68.30M	$128.3M
YoY Change	10.69%	26.72%	6.52%
Income Tax	$46.14M	$14.90M	$31.65M
% Of Pretax Income	32.49%	21.82%	24.67%
Net Earnings	$88.64M	$53.00M	$91.21M
YoY Change	-2.82%	34.52%	10.87%
Net Earnings / Revenue	3.85%	7.86%	3.97%
Basic Earnings Per Share	$1.33		$1.40
Diluted Earnings Per Share	$1.31	$781.7K	$1.34
COMMON SHARES
Basic Shares Outstanding	66.46M shares	65.99M shares	65.14M shares
Diluted Shares Outstanding	67.66M shares		67.85M shares

Balance Sheet

Concept	2018	2017 Q4	2017
SHORT-TERM ASSETS
Cash & Short-Term Investments	$364.4M	$414.1M	$414.1M
YoY Change	-12.0%	53.2%	53.2%
Cash & Equivalents		$414.1M
Short-Term Investments	$125.4M	$146.9M	$146.9M
Other Short-Term Assets	$18.10M	$26.33M	$20.70M
YoY Change	-12.56%	36.13%	28.57%
Inventory
Prepaid Expenses		$12.23M
Receivables	$473.9M	$484.1M	$484.1M
Other Receivables	$77.50M	$72.90M	$72.90M
Total Short-Term Assets	$933.9M	$991.8M	$991.8M
YoY Change	-5.84%	33.56%	33.56%
LONG-TERM ASSETS
Property, Plant & Equipment	$184.0M	$161.7M	$161.7M
YoY Change	13.79%	48.96%	48.9%
Goodwill		$236.8M
YoY Change		13.09%
Intangibles		$96.22M
YoY Change		-6.53%
Long-Term Investments	$20.50M	$19.50M	$19.50M
YoY Change	5.13%	14.71%	14.71%
Other Assets	$33.90M	$25.20M	$25.20M
YoY Change	34.52%	-17.65%	-17.65%
Total Long-Term Assets	$663.2M	$539.5M	$539.5M
YoY Change	22.93%	15.14%	15.13%
TOTAL ASSETS
Total Short-Term Assets	$933.9M	$991.8M	$991.8M
Total Long-Term Assets	$663.2M	$539.5M	$539.5M
Total Assets	$1.597B	$1.531B	$1.531B
YoY Change	4.3%	26.43%	26.43%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$446.8M	$447.8M	$447.8M
YoY Change	-0.22%	17.44%	17.44%
Accrued Expenses	$65.90M	$66.20M	$66.20M
YoY Change	-0.45%	18.43%	18.43%
Deferred Revenue		$706.0K
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$1.000M	$982.0K	$1.500M
YoY Change	-33.33%	-82.22%
Total Short-Term Liabilities	$605.3M	$621.0M	$621.0M
YoY Change	-2.53%	19.47%	19.47%
LONG-TERM LIABILITIES
Long-Term Debt	$2.500M	$1.798M	$2.200M
YoY Change	13.64%	-97.68%	-97.16%
Other Long-Term Liabilities	$10.60M	$2.793M	$7.900M
YoY Change	34.18%		146.88%
Total Long-Term Liabilities	$13.10M	$12.60M	$10.10M
YoY Change	29.7%	-84.55%	-87.5%
TOTAL LIABILITIES
Total Short-Term Liabilities	$605.3M	$621.0M	$621.0M
Total Long-Term Liabilities	$13.10M	$12.60M	$10.10M
Total Liabilities	$653.5M	$633.6M	$649.8M
YoY Change	0.57%	5.37%	6.33%
SHAREHOLDERS EQUITY
Retained Earnings		$300.2M
YoY Change		51.35%
Common Stock		$593.6M
YoY Change		21.04%
Preferred Stock
YoY Change
Treasury Stock (at cost)		$0.00
YoY Change
Treasury Stock Shares		0.000 shares
Shareholders Equity	$943.7M	$881.5M	$881.5M
YoY Change
Total Liabilities & Shareholders Equity	$1.597B	$1.531B	$1.531B
YoY Change	4.3%	26.43%	26.43%

Cashflow Statement

Concept	2018	2017 Q4	2017
OPERATING ACTIVITIES
Net Income	$88.64M	$53.00M	$91.21M
YoY Change	-2.82%	34.52%	10.87%
Depreciation, Depletion And Amortization	$78.19M	$31.30M	$66.06M
YoY Change	18.36%	83.04%	37.17%
Cash From Operating Activities	$260.7M	$79.00M	$245.5M
YoY Change	6.22%	10.18%	59.94%
INVESTING ACTIVITIES
Capital Expenditures	-$125.5M	-$47.90M	-$122.2M
YoY Change	2.7%	59.14%	43.6%
Acquisitions			-$1.110M
YoY Change			-100.47%
Other Investing Activities	-$16.82M	$22.50M	-$24.60M
YoY Change	-31.65%	-110.08%	-11181.98%
Cash From Investing Activities	-$226.7M	-$25.50M	-$106.3M
YoY Change	113.37%	-89.94%	-66.03%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net	$78.53M		-$31.96M
YoY Change	-345.7%		59.21%
Debt Paid & Issued, Net	$964.0K		$89.73M
YoY Change	-98.93%		574.42%
Cash From Financing Activities	-$62.68M	5.800M	-$29.47M
YoY Change	112.69%	-92.29%	-132.54%
NET CHANGE
Cash From Operating Activities	$260.7M	79.00M	$245.5M
Cash From Investing Activities	-$226.7M	-25.50M	-$106.3M
Cash From Financing Activities	-$62.68M	5.800M	-$29.47M
Net Change In Cash	-$49.69M	59.30M	$143.8M
YoY Change	-134.55%	-155.63%	-309.23%
FREE CASH FLOW
Cash From Operating Activities	$260.7M	$79.00M	$245.5M
Capital Expenditures	-$125.5M	-$47.90M	-$122.2M
Free Cash Flow	$386.2M	$126.9M	$367.7M
YoY Change	5.05%	24.66%	54.11%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2017Q4	crto	Accounts Payable Accrued Liabilities Employeerelated Payablesand Taxes Payable Current AccountsPayableAccruedLiabilitiesEmployeerelatedPayablesandTaxesPayableCurrent	65677000	USD
CY2018Q4	crto	Accounts Payable Accrued Liabilities Employeerelated Payablesand Taxes Payable Current AccountsPayableAccruedLiabilitiesEmployeerelatedPayablesandTaxesPayableCurrent	47115000	USD
CY2017Q4	crto	Accounts Payable Capital Expenditures AccountsPayableCapitalExpenditures	30736000	USD
CY2018Q4	crto	Accounts Payable Capital Expenditures AccountsPayableCapitalExpenditures	21454000	USD
CY2016	crto	Acquisition Related Deferred Price Consideration AcquisitionRelatedDeferredPriceConsideration	85000	USD
CY2017	crto	Acquisition Related Deferred Price Consideration AcquisitionRelatedDeferredPriceConsideration	0	USD
CY2018	crto	Acquisition Related Deferred Price Consideration AcquisitionRelatedDeferredPriceConsideration	0	USD
CY2016	crto	Allowance For Doubtful Accounts Change In Consolidation Scope AllowanceForDoubtfulAccountsChangeInConsolidationScope	-221000	USD
CY2017	crto	Allowance For Doubtful Accounts Change In Consolidation Scope AllowanceForDoubtfulAccountsChangeInConsolidationScope	0	USD
CY2018	crto	Allowance For Doubtful Accounts Change In Consolidation Scope AllowanceForDoubtfulAccountsChangeInConsolidationScope	-150000	USD
CY2016	crto	Allowance For Doubtful Accounts Receivable Currency Translation Adjustment AllowanceForDoubtfulAccountsReceivableCurrencyTranslationAdjustment	321000	USD
CY2017	crto	Allowance For Doubtful Accounts Receivable Currency Translation Adjustment AllowanceForDoubtfulAccountsReceivableCurrencyTranslationAdjustment	-726000	USD
CY2018	crto	Allowance For Doubtful Accounts Receivable Currency Translation Adjustment AllowanceForDoubtfulAccountsReceivableCurrencyTranslationAdjustment	750000	USD
CY2016	crto	Current Federal Tax Expense Benefit Value Added Taxes CurrentFederalTaxExpenseBenefitValueAddedTaxes	4100000	USD
CY2017	crto	Current Federal Tax Expense Benefit Value Added Taxes CurrentFederalTaxExpenseBenefitValueAddedTaxes	5500000	USD
CY2018	crto	Current Federal Tax Expense Benefit Value Added Taxes CurrentFederalTaxExpenseBenefitValueAddedTaxes	5900000	USD
CY2017	crto	Deferred Tax Asset Liability Activity Acquisition Divestitures And Consolidations Increase Decrease DeferredTaxAssetLiabilityActivityAcquisitionDivestituresAndConsolidationsIncreaseDecrease	-31490000	USD
CY2018	crto	Deferred Tax Asset Liability Activity Acquisition Divestitures And Consolidations Increase Decrease DeferredTaxAssetLiabilityActivityAcquisitionDivestituresAndConsolidationsIncreaseDecrease	-6911000	USD
CY2017	crto	Deferred Tax Asset Liability Activity Currency Translation Adjustments Gain Loss DeferredTaxAssetLiabilityActivityCurrencyTranslationAdjustmentsGainLoss	323000	USD
CY2018	crto	Deferred Tax Asset Liability Activity Currency Translation Adjustments Gain Loss DeferredTaxAssetLiabilityActivityCurrencyTranslationAdjustmentsGainLoss	-530000	USD
CY2017	crto	Deferred Tax Asset Liability Activity Other Activity Adjustment DeferredTaxAssetLiabilityActivityOtherActivityAdjustment	0	USD
CY2018	crto	Deferred Tax Asset Liability Activity Other Activity Adjustment DeferredTaxAssetLiabilityActivityOtherActivityAdjustment	2000	USD
CY2016	crto	Defined Benefit Plan Changein Consolidation Scope DefinedBenefitPlanChangeinConsolidationScope	19000	USD
CY2017	crto	Defined Benefit Plan Changein Consolidation Scope DefinedBenefitPlanChangeinConsolidationScope	0	USD
CY2018	crto	Defined Benefit Plan Changein Consolidation Scope DefinedBenefitPlanChangeinConsolidationScope	98000	USD
CY2016	crto	Depreciation Depletionand Amortizationand Provisionsfor Various DepreciationDepletionandAmortizationandProvisionsforVarious	62733000	USD
CY2017	crto	Depreciation Depletionand Amortizationand Provisionsfor Various DepreciationDepletionandAmortizationandProvisionsforVarious	104025000	USD
CY2018	crto	Depreciation Depletionand Amortizationand Provisionsfor Various DepreciationDepletionandAmortizationandProvisionsforVarious	111825000	USD
CY2016	crto	Effective Income Tax Rate Reconciliation Loss Carryforward Recognition Amount EffectiveIncomeTaxRateReconciliationLossCarryforwardRecognitionAmount	13366000	USD
CY2017	crto	Effective Income Tax Rate Reconciliation Loss Carryforward Recognition Amount EffectiveIncomeTaxRateReconciliationLossCarryforwardRecognitionAmount	4888000	USD
CY2018	crto	Effective Income Tax Rate Reconciliation Loss Carryforward Recognition Amount EffectiveIncomeTaxRateReconciliationLossCarryforwardRecognitionAmount	4461000	USD
CY2016	crto	Effective Income Tax Rate Reconciliation Other Permanent Differences Amount EffectiveIncomeTaxRateReconciliationOtherPermanentDifferencesAmount	3518000	USD
CY2017	crto	Effective Income Tax Rate Reconciliation Other Permanent Differences Amount EffectiveIncomeTaxRateReconciliationOtherPermanentDifferencesAmount	5717000	USD
CY2018	crto	Effective Income Tax Rate Reconciliation Other Permanent Differences Amount EffectiveIncomeTaxRateReconciliationOtherPermanentDifferencesAmount	11982000	USD
CY2016	crto	Effective Income Tax Rate Reconciliation Value Added Taxes Amount EffectiveIncomeTaxRateReconciliationValueAddedTaxesAmount	3165000	USD
CY2017	crto	Effective Income Tax Rate Reconciliation Value Added Taxes Amount EffectiveIncomeTaxRateReconciliationValueAddedTaxesAmount	2867000	USD
CY2018	crto	Effective Income Tax Rate Reconciliation Value Added Taxes Amount EffectiveIncomeTaxRateReconciliationValueAddedTaxesAmount	3849000	USD
CY2018Q4	crto	Financial Liabilities FinancialLiabilities	3508000	USD
CY2017Q4	crto	Financial Liabilities Current FinancialLiabilitiesCurrent	1499000	USD
CY2018Q4	crto	Financial Liabilities Current FinancialLiabilitiesCurrent	1018000	USD
CY2018Q4	crto	Financial Liabilities Duein Fifth Year FinancialLiabilitiesDueinFifthYear	265000	USD
CY2018Q4	crto	Financial Liabilities Duein Fourth Year FinancialLiabilitiesDueinFourthYear	268000	USD
CY2018Q4	crto	Financial Liabilities Duein Next Fiscal Year FinancialLiabilitiesDueinNextFiscalYear	1018000	USD
CY2018Q4	crto	Financial Liabilities Duein Second Year FinancialLiabilitiesDueinSecondYear	1374000	USD
CY2018Q4	crto	Financial Liabilities Duein Sixth Year FinancialLiabilitiesDueinSixthYear	0	USD
CY2018Q4	crto	Financial Liabilities Duein Third Year FinancialLiabilitiesDueinThirdYear	583000	USD
CY2017Q4	crto	Financial Liabilities Noncurrent FinancialLiabilitiesNoncurrent	2158000	USD
CY2018Q4	crto	Financial Liabilities Noncurrent FinancialLiabilitiesNoncurrent	2490000	USD
CY2016	crto	Increase Decreasein Accounts Payable Relatedto Intangible Assets Property Plantand Equipment IncreaseDecreaseinAccountsPayableRelatedtoIntangibleAssetsPropertyPlantandEquipment	7752000	USD
CY2017	crto	Increase Decreasein Accounts Payable Relatedto Intangible Assets Property Plantand Equipment IncreaseDecreaseinAccountsPayableRelatedtoIntangibleAssetsPropertyPlantandEquipment	13692000	USD
CY2018	crto	Increase Decreasein Accounts Payable Relatedto Intangible Assets Property Plantand Equipment IncreaseDecreaseinAccountsPayableRelatedtoIntangibleAssetsPropertyPlantandEquipment	-8494000	USD
CY2016	crto	Incremental Common Shares Attributableto Dilutive Effectof Sharebased Payment Arrangements Options And Bspce IncrementalCommonSharesAttributabletoDilutiveEffectofSharebasedPaymentArrangementsOptionsAndBSPCE	1958728	shares
CY2017	crto	Incremental Common Shares Attributableto Dilutive Effectof Sharebased Payment Arrangements Options And Bspce IncrementalCommonSharesAttributabletoDilutiveEffectofSharebasedPaymentArrangementsOptionsAndBSPCE	1239149	shares
CY2018	crto	Incremental Common Shares Attributableto Dilutive Effectof Sharebased Payment Arrangements Options And Bspce IncrementalCommonSharesAttributabletoDilutiveEffectofSharebasedPaymentArrangementsOptionsAndBSPCE	382512	shares
CY2017	crto	Intangible Assets Acquired IntangibleAssetsAcquired	10117000	USD
CY2018	crto	Intangible Assets Acquired IntangibleAssetsAcquired	11436000	USD
CY2017	crto	Intangible Assets Changein Consolidation Scope IntangibleAssetsChangeinConsolidationScope	7203000	USD
CY2018	crto	Intangible Assets Changein Consolidation Scope IntangibleAssetsChangeinConsolidationScope	31210000	USD
CY2018	crto	Intangible Assets Disposed IntangibleAssetsDisposed	19000	USD
CY2017	crto	Intangible Assets Foreign Currency Translation Gain Loss IntangibleAssetsForeignCurrencyTranslationGainLoss	-3120000	USD
CY2018	crto	Intangible Assets Foreign Currency Translation Gain Loss IntangibleAssetsForeignCurrencyTranslationGainLoss	1500000	USD
CY2017	crto	Intangible Assets Transfers Increase Decrease IntangibleAssetsTransfersIncreaseDecrease	0	USD
CY2018	crto	Intangible Assets Transfers Increase Decrease IntangibleAssetsTransfersIncreaseDecrease	0	USD
CY2016	crto	Interests Accruedand Noncash Financial Income Expense InterestsAccruedandNoncashFinancialIncomeExpense	-39000	USD
CY2017	crto	Interests Accruedand Noncash Financial Income Expense InterestsAccruedandNoncashFinancialIncomeExpense	-66000	USD
CY2018	crto	Interests Accruedand Noncash Financial Income Expense InterestsAccruedandNoncashFinancialIncomeExpense	-86000	USD
CY2018Q4	crto	Longterm Debt Maturities Repaymentsof Principalin Year Six LongtermDebtMaturitiesRepaymentsofPrincipalinYearSix	0	USD
CY2017	crto	Loss Contingency Accrual Foreign Currency Translation Gain Loss LossContingencyAccrualForeignCurrencyTranslationGainLoss	67000	USD
CY2018	crto	Loss Contingency Accrual Foreign Currency Translation Gain Loss LossContingencyAccrualForeignCurrencyTranslationGainLoss	-91000	USD
CY2017	crto	Loss Contingency Accrual Provision Released Not Used LossContingencyAccrualProvisionReleasedNotUsed	220000	USD
CY2018	crto	Loss Contingency Accrual Provision Released Not Used LossContingencyAccrualProvisionReleasedNotUsed	860000	USD
CY2017	crto	Loss Contingency Accrual Provision Used LossContingencyAccrualProvisionUsed	227000	USD
CY2018	crto	Loss Contingency Accrual Provision Used LossContingencyAccrualProvisionUsed	400000	USD
CY2017Q4	crto	Other Assetsand Receivables Current OtherAssetsandReceivablesCurrent	26327000	USD
CY2018Q4	crto	Other Assetsand Receivables Current OtherAssetsandReceivablesCurrent	22816000	USD
CY2017Q4	crto	Other Assetsand Receivables Gross Current OtherAssetsandReceivablesGrossCurrent	26327000	USD
CY2018Q4	crto	Other Assetsand Receivables Gross Current OtherAssetsandReceivablesGrossCurrent	22816000	USD
CY2017Q4	crto	Other Debtors OtherDebtors	5694000	USD
CY2018Q4	crto	Other Debtors OtherDebtors	4762000	USD
CY2018Q4	crto	Other Financial Liabilities OtherFinancialLiabilities	567000	USD
CY2018Q4	crto	Other Financial Liabilities Duein Fifth Year OtherFinancialLiabilitiesDueinFifthYear	0	USD
CY2018Q4	crto	Other Financial Liabilities Duein Fourth Year OtherFinancialLiabilitiesDueinFourthYear	0	USD
CY2018Q4	crto	Other Financial Liabilities Duein Next Fiscal Year OtherFinancialLiabilitiesDueinNextFiscalYear	119000	USD
CY2018Q4	crto	Other Financial Liabilities Duein Second Year OtherFinancialLiabilitiesDueinSecondYear	448000	USD
CY2018Q4	crto	Other Financial Liabilities Duein Sixth Year OtherFinancialLiabilitiesDueinSixthYear	0	USD
CY2018Q4	crto	Other Financial Liabilities Duein Third Year OtherFinancialLiabilitiesDueinThirdYear	0	USD
CY2016	crto	Other Social Expenses OtherSocialExpenses	9913000	USD
CY2017	crto	Other Social Expenses OtherSocialExpenses	17178000	USD
CY2018	crto	Other Social Expenses OtherSocialExpenses	14375000	USD
CY2016	crto	Payments To Acquire Intangible Assets Property Plant And Equipment PaymentsToAcquireIntangibleAssetsPropertyPlantAndEquipment	85133000	USD
CY2017	crto	Payments To Acquire Intangible Assets Property Plant And Equipment PaymentsToAcquireIntangibleAssetsPropertyPlantAndEquipment	122203000	USD
CY2018	crto	Payments To Acquire Intangible Assets Property Plant And Equipment PaymentsToAcquireIntangibleAssetsPropertyPlantAndEquipment	116984000	USD
CY2016	crto	Paymentsfor Proceedsfrom Changein Other Financial Noncurrent Assets PaymentsforProceedsfromChangeinOtherFinancialNoncurrentAssets	-159000	USD
CY2017	crto	Paymentsfor Proceedsfrom Changein Other Financial Noncurrent Assets PaymentsforProceedsfromChangeinOtherFinancialNoncurrentAssets	-1148000	USD
CY2018	crto	Paymentsfor Proceedsfrom Changein Other Financial Noncurrent Assets PaymentsforProceedsfromChangeinOtherFinancialNoncurrentAssets	59000	USD
CY2017Q4	crto	Prepaid Income Taxes PrepaidIncomeTaxes	8882000	USD
CY2018Q4	crto	Prepaid Income Taxes PrepaidIncomeTaxes	19370000	USD
CY2017Q4	crto	Prepaid Other Taxesand Other Taxes Receivable PrepaidOtherTaxesandOtherTaxesReceivable	58346000	USD
CY2018Q4	crto	Prepaid Other Taxesand Other Taxes Receivable PrepaidOtherTaxesandOtherTaxesReceivable	53338000	USD
CY2016	crto	Profit Sharing Expense ProfitSharingExpense	1326000	USD
CY2017	crto	Profit Sharing Expense ProfitSharingExpense	1002000	USD
CY2017Q4	crto	Prepayments To Suppliers PrepaymentsToSuppliers	3244000	USD
CY2018Q4	crto	Prepayments To Suppliers PrepaymentsToSuppliers	4056000	USD
CY2018	crto	Profit Sharing Expense ProfitSharingExpense	598000	USD
CY2017	crto	Property Plant And Equipment Currency Translation Adjustment Gain Loss PropertyPlantAndEquipmentCurrencyTranslationAdjustmentGainLoss	8485000	USD
CY2018	crto	Property Plant And Equipment Currency Translation Adjustment Gain Loss PropertyPlantAndEquipmentCurrencyTranslationAdjustmentGainLoss	-4991000	USD
CY2017	crto	Property Plantand Equipment Changein Scope PropertyPlantandEquipmentChangeinScope	0	USD
CY2018	crto	Property Plantand Equipment Changein Scope PropertyPlantandEquipmentChangeinScope	129000	USD
CY2016	crto	Research Tax Credit ResearchTaxCredit	4941000	USD
CY2017	crto	Research Tax Credit ResearchTaxCredit	6289000	USD
CY2018	crto	Research Tax Credit ResearchTaxCredit	10687000	USD
CY2017	crto	Sharebased Compensation Arrangementby Sharebased Payment Award Exercise Price Average Percentof Closing Share Pricesforthe Last20 Trading Days SharebasedCompensationArrangementbySharebasedPaymentAwardExercisePriceAveragePercentofClosingSharePricesfortheLast20TradingDays	0.95
CY2016	crto	Sharebased Compensation Expense Employeeand Non Employee SharebasedCompensationExpenseEmployeeandNonEmployee	43259000	USD
CY2017	crto	Sharebased Compensation Expense Employeeand Non Employee SharebasedCompensationExpenseEmployeeandNonEmployee	71612000	USD
CY2018	crto	Sharebased Compensation Expense Employeeand Non Employee SharebasedCompensationExpenseEmployeeandNonEmployee	66600000	USD
CY2016	crto	Social Charges SocialCharges	59668000	USD
CY2017	crto	Social Charges SocialCharges	70130000	USD
CY2018	crto	Social Charges SocialCharges	77284000	USD
CY2018	dei	Amendment Flag AmendmentFlag	false
CY2018	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2018	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2018	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2018
CY2018	dei	Document Period End Date DocumentPeriodEndDate	2018-12-31
CY2018	dei	Document Type DocumentType	10-K
CY2018	dei	Entity Central Index Key EntityCentralIndexKey	0001576427
CY2019Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	67708741	shares
CY2018	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2018	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2018	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2018Q2	dei	Entity Public Float EntityPublicFloat	2100000000	USD
CY2018	dei	Entity Registrant Name EntityRegistrantName	Criteo S.A.
CY2018	dei	Entity Shell Company EntityShellCompany	false
CY2018	dei	Entity Small Business EntitySmallBusiness	false
CY2018	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2018	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2017Q4	us-gaap	Accounts Payable Trade Current AccountsPayableTradeCurrent	417032000	USD
CY2018Q4	us-gaap	Accounts Payable Trade Current AccountsPayableTradeCurrent	425376000	USD
CY2017Q4	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	504919000	USD
CY2018Q4	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	499819000	USD
CY2017Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	484101000	USD
CY2018Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	473901000	USD
CY2017Q4	us-gaap	Accrual For Taxes Other Than Income Taxes Current AccrualForTaxesOtherThanIncomeTaxesCurrent	58783000	USD
CY2018Q4	us-gaap	Accrual For Taxes Other Than Income Taxes Current AccrualForTaxesOtherThanIncomeTaxesCurrent	55592000	USD
CY2017Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	9997000	USD
CY2018Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	7725000	USD
CY2017Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	167437000	USD
CY2018Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	239072000	USD
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-12241000	USD
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-30522000	USD
CY2017Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	591404000	USD
CY2018Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	663281000	USD
CY2016	us-gaap	Adjustments Noncash Items To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	139122000	USD
CY2017	us-gaap	Adjustments Noncash Items To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	212254000	USD
CY2018	us-gaap	Adjustments Noncash Items To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	221481000	USD
CY2016	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	41589000	USD
CY2017	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	69909000	USD
CY2018	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	65118000	USD
CY2016	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	41589000	USD
CY2017	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	69900000	USD
CY2017	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	69908000	USD
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	65117000	USD
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	65100000	USD
CY2015Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	6264000	USD
CY2016Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	11598000	USD
CY2017Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	20818000	USD
CY2017Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	20800000	USD
CY2018Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	25900000	USD
CY2018Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	25918000	USD
CY2017	us-gaap	Allowance For Doubtful Accounts Receivable Period Increase Decrease AllowanceForDoubtfulAccountsReceivablePeriodIncreaseDecrease	9200000	USD
CY2018	us-gaap	Allowance For Doubtful Accounts Receivable Period Increase Decrease AllowanceForDoubtfulAccountsReceivablePeriodIncreaseDecrease	5100000	USD
CY2016	us-gaap	Allowance For Doubtful Accounts Receivable Recoveries AllowanceForDoubtfulAccountsReceivableRecoveries	4464000	USD
CY2017	us-gaap	Allowance For Doubtful Accounts Receivable Recoveries AllowanceForDoubtfulAccountsReceivableRecoveries	4821000	USD
CY2018	us-gaap	Allowance For Doubtful Accounts Receivable Recoveries AllowanceForDoubtfulAccountsReceivableRecoveries	11956000	USD
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	27161000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	25314000	USD
CY2016	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	905528	shares
CY2017	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	1031005	shares
CY2018	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	1504718	shares
CY2017Q4	us-gaap	Assets Assets	1531300000	USD
CY2018Q4	us-gaap	Assets Assets	1597135000	USD
CY2017Q4	us-gaap	Assets Current AssetsCurrent	991767000	USD
CY2018Q4	us-gaap	Assets Current AssetsCurrent	933851000	USD
CY2017Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	588299000	USD
CY2018Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	570515000	USD
CY2017Q4	us-gaap	Assets Noncurrent AssetsNoncurrent	539533000	USD
CY2018Q4	us-gaap	Assets Noncurrent AssetsNoncurrent	663284000	USD
CY2018	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	1700000	USD
CY2017Q4	us-gaap	Cash Cash	267236000	USD
CY2018Q4	us-gaap	Cash Cash	238984000	USD
CY2015Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	353537000	USD
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	270317000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	414111000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	364426000	USD
CY2016	us-gaap	Cash And Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashAndCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	-68724000	USD
CY2017	us-gaap	Cash And Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashAndCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	109737000	USD
CY2018	us-gaap	Cash And Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashAndCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	-28667000	USD
CY2017Q4	us-gaap	Cash Equivalents At Carrying Value CashEquivalentsAtCarryingValue	146875000	USD
CY2018Q4	us-gaap	Cash Equivalents At Carrying Value CashEquivalentsAtCarryingValue	125442000	USD
CY2017Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2018Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2017Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.025
CY2018Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.025
CY2017Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	66085097	shares
CY2018Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	67708203	shares
CY2017Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	66085097	shares
CY2018Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	67708203	shares
CY2016Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	63978204	shares
CY2017Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	66085097	shares
CY2018Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	67708203	shares
CY2017Q4	us-gaap	Common Stock Value CommonStockValue	2152000	USD
CY2018Q4	us-gaap	Common Stock Value CommonStockValue	2201000	USD
CY2016	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	62820000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	167566000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	77594000	USD
CY2016	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	4809000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	6029000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	420000	USD
CY2016	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	67629000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	173595000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	78014000	USD
CY2017Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	706000	USD
CY2018Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	623000	USD
CY2017Q4	us-gaap	Contract With Customer Refund Liability Current ContractWithCustomerRefundLiabilityCurrent	23857000	USD
CY2018Q4	us-gaap	Contract With Customer Refund Liability Current ContractWithCustomerRefundLiabilityCurrent	10328000	USD
CY2018Q4	us-gaap	Contractual Obligation ContractualObligation	19000000	USD
CY2016	us-gaap	Cost Depreciation Amortization And Depletion CostDepreciationAmortizationAndDepletion	38469000	USD
CY2017	us-gaap	Cost Depreciation Amortization And Depletion CostDepreciationAmortizationAndDepletion	54219000	USD
CY2018	us-gaap	Cost Depreciation Amortization And Depletion CostDepreciationAmortizationAndDepletion	67346000	USD
CY2016	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	1068911000	USD
CY2017	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	1355556000	USD
CY2018	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	1334334000	USD
CY2016	us-gaap	Cost Of Revenue CostOfRevenue	1154171000	USD
CY2017	us-gaap	Cost Of Revenue CostOfRevenue	1477197000	USD
CY2018	us-gaap	Cost Of Revenue CostOfRevenue	1466078000	USD
CY2016	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	20204000	USD
CY2017	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	29193000	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	37223000	USD
CY2016	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	22949000	USD
CY2017	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	15727000	USD
CY2018	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	17078000	USD
CY2016	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	43153000	USD
CY2017	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	44920000	USD
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	54301000	USD
CY2016	us-gaap	Debt Related Commitment Fees And Debt Issuance Costs DebtRelatedCommitmentFeesAndDebtIssuanceCosts	1233000	USD
CY2018Q4	us-gaap	Deferred Compensation Arrangement With Individual Shares Authorized For Issuance DeferredCompensationArrangementWithIndividualSharesAuthorizedForIssuance	156859	shares
CY2016	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-2654000	USD
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	1080000	USD
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-11155000	USD
CY2016	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-7370000	USD
CY2017	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-14349000	USD
CY2017	us-gaap	Debt Related Commitment Fees And Debt Issuance Costs DebtRelatedCommitmentFeesAndDebtIssuanceCosts	397000	USD
CY2018	us-gaap	Debt Related Commitment Fees And Debt Issuance Costs DebtRelatedCommitmentFeesAndDebtIssuanceCosts	311000	USD
CY2018	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	2998000	USD
CY2017Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	25221000	USD
CY2018Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	33894000	USD
CY2016	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-10024000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-13269000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-8157000	USD
CY2017Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	2497000	USD
CY2018Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	10770000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	29944000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	22724000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	23124000	USD
CY2017Q4	us-gaap	Defined Benefit Pension Plan Liabilities Noncurrent DefinedBenefitPensionPlanLiabilitiesNoncurrent	5149000	USD
CY2018Q4	us-gaap	Defined Benefit Pension Plan Liabilities Noncurrent DefinedBenefitPensionPlanLiabilitiesNoncurrent	5537000	USD
CY2016	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	-1335000	USD
CY2017	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	-103000	USD
CY2018	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	1235000	USD
CY2016	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	0.019
CY2017	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	0.017
CY2018	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	0.021
CY2016	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease	0.050
CY2017	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease	0.050
CY2018	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease	0.050
CY2015Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	1445000	USD
CY2016Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	3221000	USD
CY2017Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	5149000	USD
CY2018Q4	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	5537000	USD
CY2016	us-gaap	Defined Benefit Plan Foreign Currency Exchange Rate Changes Benefit Obligation DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation	139000	USD
CY2017	us-gaap	Defined Benefit Plan Foreign Currency Exchange Rate Changes Benefit Obligation DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation	-528000	USD
CY2018	us-gaap	Defined Benefit Plan Foreign Currency Exchange Rate Changes Benefit Obligation DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation	251000	USD
CY2016	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	37000	USD
CY2017	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	66000	USD
CY2018	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	86000	USD
CY2016	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	524000	USD
CY2017	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	1231000	USD
CY2018	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	1690000	USD
CY2016	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	11061000	USD
CY2017	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	14345000	USD
CY2018	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	16912000	USD
CY2017	us-gaap	Depreciation Depreciation	66061000	USD
CY2018	us-gaap	Depreciation Depreciation	78187000	USD
CY2017Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	5159000	USD
CY2018Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	1703000	USD
CY2016	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.30
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.40
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.33
CY2016	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.25
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.34
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.31
CY2016	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-14496000	USD
CY2017	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	34057000	USD
CY2018	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-21018000	USD
CY2016	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.275
CY2017	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.247
CY2018	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.325
CY2016	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.3443
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.3443
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.3443
CY2017Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	66219000	USD
CY2018Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	65878000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	57301000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	80312000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	15853000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	29668000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	11028000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	12439000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	20632000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	22416000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	112036000	USD
CY2016	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	506000	USD
CY2017	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-7495000	USD
CY2018	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-3945000	USD
CY2016	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	81000	USD
CY2017	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	-794000	USD
CY2018	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	869000	USD
CY2016	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	117469000	USD
CY2017	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	127077000	USD
CY2018	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	135159000	USD
CY2016Q4	us-gaap	Goodwill Goodwill	209418000	USD
CY2017Q4	us-gaap	Goodwill Goodwill	236826000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	312881000	USD
CY2017	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	23738000	USD
CY2018	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	77905000	USD
CY2017	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	3670000	USD
CY2018	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	-1850000	USD
CY2016	us-gaap	Gross Profit GrossProfit	644975000	USD
CY2017	us-gaap	Gross Profit GrossProfit	819495000	USD
CY2018	us-gaap	Gross Profit GrossProfit	834236000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	120458000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	128310000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	142023000	USD
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	33129000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	31651000	USD
CY2016	us-gaap	Income Tax Reconciliation Deductions IncomeTaxReconciliationDeductions	20022000	USD
CY2017	us-gaap	Income Tax Reconciliation Deductions IncomeTaxReconciliationDeductions	29410000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	46144000	USD
CY2016	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	7738000	USD
CY2017	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	14356000	USD
CY2018	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	11664000	USD
CY2018	us-gaap	Income Tax Reconciliation Deductions IncomeTaxReconciliationDeductions	38577000	USD
CY2016	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	1108000	USD
CY2017	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	6667000	USD
CY2018	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	377000	USD
CY2016	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	41474000	USD
CY2017	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	44177000	USD
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	48899000	USD
CY2016	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	8957000	USD
CY2017	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	605000	USD
CY2018	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	17674000	USD
CY2016	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	2258000	USD
CY2017	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-1611000	USD
CY2018	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	4948000	USD
CY2016	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	1701000	USD
CY2017	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	6829000	USD
CY2018	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	10211000	USD
CY2016	us-gaap	Income Taxes Paid IncomeTaxesPaid	43522000	USD
CY2017	us-gaap	Income Taxes Paid IncomeTaxesPaid	56360000	USD
CY2018	us-gaap	Income Taxes Paid IncomeTaxesPaid	67045000	USD
CY2016	us-gaap	Increase Decrease In Accounts Payable Trade IncreaseDecreaseInAccountsPayableTrade	81862000	USD
CY2017	us-gaap	Increase Decrease In Accounts Payable Trade IncreaseDecreaseInAccountsPayableTrade	32915000	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable Trade IncreaseDecreaseInAccountsPayableTrade	9047000	USD
CY2016	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	117970000	USD
CY2017	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	76907000	USD
CY2018	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-1358000	USD
CY2016	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	29460000	USD
CY2017	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	7095000	USD
CY2018	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	-10411000	USD
CY2016	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	28432000	USD
CY2017	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	3381000	USD
CY2018	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-3974000	USD
CY2016	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	35080000	USD
CY2017	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	40278000	USD
CY2018	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	-3968000	USD
CY2016	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	83222	shares
CY2017	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	67829	shares
CY2018	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	36570	shares
CY2016	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	253728	shares
CY2017	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1401957	shares
CY2018	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	786932	shares
CY2017Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	153524000	USD
CY2018Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	192348000	USD
CY2016Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	102944000	USD
CY2017Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	96223000	USD
CY2018Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	112036000	USD
CY2016	us-gaap	Interest Expense InterestExpense	2367000	USD
CY2016	us-gaap	Interest Paid InterestPaid	1300000	USD
CY2017	us-gaap	Interest Expense InterestExpense	2856000	USD
CY2018	us-gaap	Interest Expense InterestExpense	2107000	USD
CY2016	us-gaap	Interest Expense Debt InterestExpenseDebt	1134000	USD
CY2017	us-gaap	Interest Expense Debt InterestExpenseDebt	2459000	USD
CY2018	us-gaap	Interest Expense Debt InterestExpenseDebt	1796000	USD
CY2017	us-gaap	Interest Paid InterestPaid	2900000	USD
CY2018	us-gaap	Interest Paid InterestPaid	1400000	USD
CY2016	us-gaap	Investment Income Interest InvestmentIncomeInterest	1352000	USD
CY2017	us-gaap	Investment Income Interest InvestmentIncomeInterest	883000	USD
CY2018	us-gaap	Investment Income Interest InvestmentIncomeInterest	1055000	USD
CY2016	us-gaap	Labor And Related Expense LaborAndRelatedExpense	332353000	USD
CY2017	us-gaap	Labor And Related Expense LaborAndRelatedExpense	445563000	USD
CY2018	us-gaap	Labor And Related Expense LaborAndRelatedExpense	451428000	USD
CY2017Q4	us-gaap	Liabilities Liabilities	633602000	USD
CY2018Q4	us-gaap	Liabilities Liabilities	629244000	USD
CY2017Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1531300000	USD
CY2018Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1597135000	USD
CY2017Q4	us-gaap	Liabilities Current LiabilitiesCurrent	621005000	USD
CY2018Q4	us-gaap	Liabilities Current LiabilitiesCurrent	605344000	USD
CY2017Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	12597000	USD
CY2018Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	23900000	USD
CY2018Q4	us-gaap	Long Term Debt LongTermDebt	2941000	USD
CY2018Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	899000	USD
CY2018Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	265000	USD
CY2018Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	268000	USD
CY2018Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	583000	USD
CY2018Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	926000	USD
CY2016Q4	us-gaap	Loss Contingency Accrual At Carrying Value LossContingencyAccrualAtCarryingValue	654000	USD
CY2017Q4	us-gaap	Loss Contingency Accrual At Carrying Value LossContingencyAccrualAtCarryingValue	1798000	USD
CY2018Q4	us-gaap	Loss Contingency Accrual At Carrying Value LossContingencyAccrualAtCarryingValue	2640000	USD
CY2018Q4	us-gaap	Loss Contingency Accrual Carrying Value Current LossContingencyAccrualCarryingValueCurrent	2640000	USD
CY2017	us-gaap	Loss Contingency Accrual Provision LossContingencyAccrualProvision	1524000	USD
CY2018	us-gaap	Loss Contingency Accrual Provision LossContingencyAccrualProvision	2193000	USD
CY2017Q4	us-gaap	Minority Interest MinorityInterest	16173000	USD
CY2018Q4	us-gaap	Minority Interest MinorityInterest	24221000	USD
CY2016	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	90570000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-29468000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-62676000	USD
CY2016	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-312763000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-106253000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-226717000	USD
CY2016	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	153469000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	245458000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	260726000	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	82272000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	91214000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	88644000	USD
CY2016	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	5057000	USD
CY2017	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	5445000	USD
CY2018	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	7235000	USD
CY2017Q4	us-gaap	Noncurrent Assets NoncurrentAssets	257961000	USD
CY2018Q4	us-gaap	Noncurrent Assets NoncurrentAssets	296049000	USD
CY2016	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-546000	USD
CY2017	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-9500000	USD
CY2017	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-9534000	USD
CY2018	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-5084000	USD
CY2018	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-5100000	USD
CY2017Q4	us-gaap	Nontrade Receivables Noncurrent NontradeReceivablesNoncurrent	19525000	USD
CY2018Q4	us-gaap	Nontrade Receivables Noncurrent NontradeReceivablesNoncurrent	20460000	USD
CY2017Q4	us-gaap	Notes Payable Current NotesPayableCurrent	9638000	USD
CY2018Q4	us-gaap	Notes Payable Current NotesPayableCurrent	13183000	USD
CY2018	us-gaap	Number Of Businesses Acquired NumberOfBusinessesAcquired	2	business
CY2018	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	1
CY2018	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1
CY2016	us-gaap	Operating Expenses OperatingExpenses	523971000	USD
CY2017	us-gaap	Operating Expenses OperatingExpenses	681651000	USD
CY2018	us-gaap	Operating Expenses OperatingExpenses	687129000	USD
CY2016	us-gaap	Operating Income Loss OperatingIncomeLoss	121004000	USD
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	137844000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	147107000	USD
CY2017Q4	us-gaap	Other Assets Current OtherAssetsCurrent	26327000	USD
CY2018Q4	us-gaap	Other Assets Current OtherAssetsCurrent	22816000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	-18571000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	77023000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	-18781000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-18571000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	77023000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-18781000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	0	USD
CY2017	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	0	USD
CY2018	us-gaap	Other Comprehensive Income Loss Foreign Currency Translation Adjustment Tax OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax	0	USD
CY2016	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-19700000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	76936000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-17865000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	1335000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	103000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-1235000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	1129000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	87000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-916000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	206000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	16000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-319000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	10678000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-318000	USD
CY2016	us-gaap	Other Cost Of Operating Revenue OtherCostOfOperatingRevenue	85260000	USD
CY2017	us-gaap	Other Cost Of Operating Revenue OtherCostOfOperatingRevenue	121641000	USD
CY2018	us-gaap	Other Cost Of Operating Revenue OtherCostOfOperatingRevenue	131744000	USD
CY2017Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	65677000	USD
CY2018Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	47115000	USD
CY2017Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	2793000	USD
CY2018Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	5103000	USD
CY2016	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	0	USD
CY2017	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-4105000	USD
CY2018	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	2305000	USD
CY2016	us-gaap	Other Noncash Income Tax Expense OtherNoncashIncomeTaxExpense	43196000	USD
CY2017	us-gaap	Other Noncash Income Tax Expense OtherNoncashIncomeTaxExpense	44921000	USD
CY2018	us-gaap	Other Noncash Income Tax Expense OtherNoncashIncomeTaxExpense	54301000	USD
CY2016	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-37000	USD
CY2017	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-66000	USD
CY2018	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-87000	USD
CY2017Q4	us-gaap	Other Sundry Liabilities Current OtherSundryLiabilitiesCurrent	740000	USD
CY2018Q4	us-gaap	Other Sundry Liabilities Current OtherSundryLiabilitiesCurrent	1527000	USD
CY2016	us-gaap	Payments For Proceeds From Businesses And Interest In Affiliates PaymentsForProceedsFromBusinessesAndInterestInAffiliates	235541000	USD
CY2017	us-gaap	Payments For Proceeds From Businesses And Interest In Affiliates PaymentsForProceedsFromBusinessesAndInterestInAffiliates	-1110000	USD
CY2018	us-gaap	Payments For Proceeds From Businesses And Interest In Affiliates PaymentsForProceedsFromBusinessesAndInterestInAffiliates	101180000	USD
CY2016	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	222000	USD
CY2017	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-24602000	USD
CY2018	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-16815000	USD
CY2016	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2017	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	80000000	USD
CY2017Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	12230000	USD
CY2018Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	12295000	USD
CY2016	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	20075000	USD
CY2017	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	31961000	USD
CY2018	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	1473000	USD
CY2016	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	84022000	USD
CY2017	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	3700000	USD
CY2018	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
CY2016	us-gaap	Profit Loss ProfitLoss	87329000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	96659000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	95879000	USD
CY2017	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	112086000	USD
CY2018	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	105549000	USD
CY2017	us-gaap	Property Plant And Equipment Disposals PropertyPlantAndEquipmentDisposals	1353000	USD
CY2018	us-gaap	Property Plant And Equipment Disposals PropertyPlantAndEquipmentDisposals	225000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	329175000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	423085000	USD
CY2016Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	108581000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	161738000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	184013000	USD
CY2017	us-gaap	Property Plant And Equipment Transfers And Changes PropertyPlantAndEquipmentTransfersAndChanges	0	USD
CY2018	us-gaap	Property Plant And Equipment Transfers And Changes PropertyPlantAndEquipmentTransfersAndChanges	0	USD
CY2016	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	9898000	USD
CY2017	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	13315000	USD
CY2018	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	17656000	USD
CY2016	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	13305000	USD
CY2017	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	89731000	USD
CY2018	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	964000	USD
CY2016	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	123649000	USD
CY2017	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	173925000	USD
CY2018	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	179263000	USD
CY2017Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	300210000	USD
CY2018Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	387869000	USD
CY2016	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1799146000	USD
CY2017	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2296692000	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2300314000	USD
CY2016	us-gaap	Salaries Wages And Officers Compensation SalariesWagesAndOfficersCompensation	220317000	USD
CY2017	us-gaap	Salaries Wages And Officers Compensation SalariesWagesAndOfficersCompensation	284015000	USD
CY2018	us-gaap	Salaries Wages And Officers Compensation SalariesWagesAndOfficersCompensation	296336000	USD
CY2016	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	282853000	USD
CY2017	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	380649000	USD
CY2018	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	372707000	USD
CY2016	us-gaap	Severance Costs1 SeveranceCosts1	2726000	USD
CY2017	us-gaap	Severance Costs1 SeveranceCosts1	7915000	USD
CY2018	us-gaap	Severance Costs1 SeveranceCosts1	6922000	USD
CY2016	us-gaap	Share Based Compensation ShareBasedCompensation	43259000	USD
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	71612000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	66600000	USD
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	2708406	shares
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	1971130	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	2241036	shares
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	17.73
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	23.16
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	25.39
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	0	shares
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	0	shares
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	0	shares
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	1130428	shares
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	996894	shares
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	2084102	shares
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	3160683	shares
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	2246712	shares
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	4146709	shares
CY2015Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	7643439	shares
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	8203371	shares
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	7405216	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	7967602	shares
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	23.92
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	28.33
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	26.94
CY2016	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P6Y10M24D
CY2017	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P6Y10M24D
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P6Y8M6D
CY2017	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested Number Of Shares SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares	379135	shares
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested Number Of Shares SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares	1362873	shares
CY2017	us-gaap	Stock Issued During Period Shares Share Based Compensation StockIssuedDuringPeriodSharesShareBasedCompensation	2106893	shares
CY2018	us-gaap	Stock Issued During Period Shares Share Based Compensation StockIssuedDuringPeriodSharesShareBasedCompensation	1466247	shares
CY2016	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	1470323	shares
CY2017	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	1668838	shares
CY2018	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	137348	shares
CY2016	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	21747000	USD
CY2017	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	33666000	USD
CY2018	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	2955000	USD
CY2018Q4	us-gaap	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	80000000.0	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	881525000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	943670000	USD
CY2015Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	479023000	USD
CY2016Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	609877000	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	897698000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	967891000	USD
CY2016	us-gaap	Stockholders Equity Other StockholdersEquityOther	111000	USD
CY2017	us-gaap	Stockholders Equity Other StockholdersEquityOther	-10651000	USD
CY2018	us-gaap	Stockholders Equity Other StockholdersEquityOther	-3265000	USD
CY2017Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	0	shares
CY2018Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	3459119	shares
CY2018Q4	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	3500000	shares
CY2017Q4	us-gaap	Treasury Stock Value TreasuryStockValue	0	USD
CY2018Q4	us-gaap	Treasury Stock Value TreasuryStockValue	79159000	USD
CY2018Q4	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	80000000	USD
CY2018	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	79159000	USD
CY2016	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	65633470	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	67851971	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	67662904	shares
CY2016	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	63337792	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	65143036	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	66456890	shares
CY2018	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-top:24px;font-size:10pt;"><font style="font-family:Times New Roman;font-size:10pt;color:#000000;font-style:normal;font-weight:bold;text-decoration:none;">Concentration of Credit Risk</font></div><div style="line-height:120%;padding-bottom:16px;padding-top:8px;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Financial instruments that potentially subject the Company to significant concentrations of credit risk consist primarily of cash, cash equivalents and accounts receivable. The Company’s cash and cash equivalents are held and foreign exchange contracts are transacted with major financial institutions that the Company's management has assessed to be of high credit quality. The Company has not experienced any losses in such accounts.</font></div><div style="line-height:120%;padding-bottom:16px;padding-top:8px;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The Company mitigates its credit risk with respect to accounts receivable by performing credit evaluations and monitoring agencies' and advertisers' accounts receivable balances. As of </font><font style="font-family:inherit;font-size:10pt;">December 31, 2018</font><font style="font-family:inherit;font-size:10pt;"> and </font><font style="font-family:inherit;font-size:10pt;">2017</font><font style="font-family:inherit;font-size:10pt;"> no customer accounted for 10% or more of accounts receivable. During the years ended </font><font style="font-family:inherit;font-size:10pt;">December 31, 2018</font><font style="font-family:inherit;font-size:10pt;">, </font><font style="font-family:inherit;font-size:10pt;">2017</font><font style="font-family:inherit;font-size:10pt;"> and </font><font style="font-family:inherit;font-size:10pt;">2016</font><font style="font-family:inherit;font-size:10pt;">, no single customer represented 10% or more of revenue.</font></div></div>
CY2018	us-gaap	Property Plant And Equipment Impairment PropertyPlantAndEquipmentImpairment	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-bottom:16px;padding-top:16px;font-size:10pt;"><font style="font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:bold;text-decoration:none;">Property, Plant and Equipment and Impairment of Long-lived Assets</font></div><div style="line-height:120%;padding-bottom:16px;padding-top:8px;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The Company reviews long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset is impaired or the estimated useful life is no longer appropriate. If indicators of impairment exist and the undiscounted projected cash flows associated with an asset are less than the carrying amount of the asset, an impairment loss is recorded to write the asset down to its estimated fair value. Fair value is estimated based on discounted future cash flows.</font></div></div>
CY2018	us-gaap	Use Of Estimates UseOfEstimates	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;padding-top:8px;text-align:left;font-size:10pt;"><font style="font-family:Times New Roman;font-size:10pt;color:#000000;font-style:normal;font-weight:bold;text-decoration:none;">Use of Estimates </font></div><div style="line-height:120%;padding-bottom:4px;padding-top:8px;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The preparation of our Consolidated Financial Statements requires the use of estimates, assumptions and judgments that affect the reported amounts of assets, liabilities, and disclosures of contingent assets and liabilities at the date of the consolidated financial statements and the reported amount of revenue and expenses during the period. We base our estimates and assumptions on historical experience and other factors that we believe to be reasonable under the circumstances. We evaluate our estimates and assumptions on an ongoing basis. Our actual results may differ from these estimates. </font></div><div style="line-height:120%;padding-bottom:4px;padding-top:8px;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">On an on-going basis, management evaluates its estimates, primarily those related to: (1) revenue recognition criteria (2) allowances for doubtful accounts, (3) research tax credits (4) income taxes, including i) recognition of deferred tax assets arising from the subsidiaries projected taxable profit for future years, ii) evaluation of uncertain tax positions associated with our transfer pricing policy and iii) recognition of income tax position in respect of the tax reform in France voted in December 2018, (5) assumptions used in valuing acquired assets and assumed liabilities in business combinations, (6) assumptions used in the valuation of goodwill and intangible assets, and (7) assumptions used in the valuation model to determine the fair value of share-based compensation plan.</font></div><div style="line-height:120%;padding-top:24px;font-size:10pt;"><font style="font-family:Times New Roman;font-size:10pt;color:#000000;font-style:normal;font-weight:bold;text-decoration:none;"></font></div></div>

Files In Submission

Name	View Source	Status
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0001576427-19-000014-index.html	Edgar Link	pending
0001576427-19-000014.txt	Edgar Link	pending
0001576427-19-000014-xbrl.zip	Edgar Link	pending
a2018performancegrapha01.jpg	Edgar Link	pending
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criteo10-k2018.htm	Edgar Link	pending
criteosaupdatedbylaws_image1.gif	Edgar Link	pending
crto-20181231.xml	Edgar Link	completed
crto-20181231.xsd	Edgar Link	pending
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crto-20181231_def.xml	Edgar Link	unprocessable
crto-20181231_lab.xml	Edgar Link	unprocessable
crto-20181231_pre.xml	Edgar Link	unprocessable
exhibit1022formofindemnifi.htm	Edgar Link	pending
exhibit211subsidiaries1.htm	Edgar Link	pending
exhibit231consent1.htm	Edgar Link	pending
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2018 Form 10-K Financial Statement

#000157642719000014 Filed on March 01, 2019

Income Statement

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Facts In Submission

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$CRTO Criteo S.A. Stock $crto

2018 Form 10-K Financial Statement

#000157642719000014 Filed on March 01, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CRTO
Criteo S.A. Stock $crto