$AKAM
Akamai Technologies Inc Stock $akam

$akam Overview Financials Valuation SEC Filings Company Website

2017 Q4 Form 10-K Financial Statement

#000108622219000066 Filed on February 28, 2019

Income Statement

Concept	2017 Q4	2017 Q3	2017 Q2
Revenue	$663.5M	$621.4M	$608.9M
YoY Change	7.68%	6.39%	6.43%
Cost Of Revenue	$229.9M	$225.5M	$214.7M
YoY Change	13.01%	10.28%	4.05%
Gross Profit	$433.5M	$395.9M	$394.2M
YoY Change	5.06%	4.3%	7.77%
Gross Profit Margin	65.34%	63.71%	64.74%
Selling, General & Admin	$238.9M	$242.4M	$241.5M
YoY Change	9.89%	12.24%	14.57%
% of Gross Profit	55.11%	61.22%	61.25%
Research & Development	$59.70M	$57.23M	$53.37M
YoY Change	27.56%	35.16%	41.61%
% of Gross Profit	13.77%	14.45%	13.54%
Depreciation & Amortization	$99.40M	$97.20M	$89.20M
YoY Change	18.33%	15.03%	4.82%
% of Gross Profit	22.93%	24.55%	22.63%
Operating Expenses	$326.3M	$299.6M	$294.8M
YoY Change	13.1%	16.0%	18.67%
Operating Profit	$107.2M	$91.25M	$85.59M
YoY Change	-13.64%	-18.35%	-22.32%
Interest Expense	-$400.0K	$4.746M	$4.646M
YoY Change	-20.0%	1.71%	0.15%
% of Operating Profit	-0.37%	5.2%	5.43%
Other Income/Expense, Net	$500.0K	$535.0K	$563.0K
YoY Change	-82.14%	-31.23%	35.66%
Pretax Income	$32.20M	$91.51M	$85.79M
YoY Change	-74.4%	-18.07%	-21.54%
Income Tax	-$21.30M	$27.59M	$29.04M
% Of Pretax Income	-66.15%	30.16%	33.85%
Net Earnings	$27.52M	$63.91M	$56.75M
YoY Change	-69.97%	-15.91%	-22.93%
Net Earnings / Revenue	4.15%	10.29%	9.32%
Basic Earnings Per Share	$0.16	$0.37	$0.33
Diluted Earnings Per Share	$0.16	$0.37	$0.33
COMMON SHARES
Basic Shares Outstanding	169.2M shares	171.0M shares	172.7M shares
Diluted Shares Outstanding		171.5M shares	173.4M shares

Balance Sheet

Concept	2017 Q4	2017 Q3	2017 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$711.9M	$752.0M	$683.1M
YoY Change	-14.95%	-17.47%	-21.37%
Cash & Equivalents	$313.4M	$368.2M	$352.5M
Short-Term Investments	$398.6M	$383.8M	$330.6M
Other Short-Term Assets	$29.30M	$142.9M	$159.4M
YoY Change	48.49%	21.41%	20.3%
Inventory
Prepaid Expenses
Receivables	$461.5M	$400.8M	$395.9M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$1.346B	$1.296B	$1.238B
YoY Change	2.77%	-6.57%	-9.32%
LONG-TERM ASSETS
Property, Plant & Equipment	$862.5M	$883.8M	$856.0M
YoY Change	7.68%	10.76%	8.8%
Goodwill	$1.499B	$1.359B	$1.357B
YoY Change	21.99%	18.03%	17.95%
Intangibles	$201.3M	$176.3M	$184.0M
YoY Change	34.65%	26.94%	29.0%
Long-Term Investments	$567.6M	$661.9M	$731.8M
YoY Change	-27.17%	-13.78%	0.08%
Other Assets	$136.4M	$113.7M	$114.8M
YoY Change	42.12%	26.58%	26.36%
Total Long-Term Assets	$3.303B	$3.213B	$3.251B
YoY Change	7.82%	8.32%	11.93%
TOTAL ASSETS
Total Short-Term Assets	$1.346B	$1.296B	$1.238B
Total Long-Term Assets	$3.303B	$3.213B	$3.251B
Total Assets	$4.649B	$4.509B	$4.489B
YoY Change	6.31%	3.57%	5.14%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$80.28M	$88.34M	$91.74M
YoY Change	5.46%	18.85%	34.42%
Accrued Expenses	$283.7M	$268.0M	$222.0M
YoY Change	18.83%	-7.95%	-5.12%
Deferred Revenue	$70.50M
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$0.00
YoY Change
Total Short-Term Liabilities	$456.7M	$430.3M	$399.1M
YoY Change	21.92%	-0.29%	5.98%
LONG-TERM LIABILITIES
Long-Term Debt	$662.9M	$657.1M	$651.4M
YoY Change	3.56%	3.56%	3.56%
Other Long-Term Liabilities	$143.0M	$128.8M	$125.8M
YoY Change	20.44%	22.04%	26.1%
Total Long-Term Liabilities	$143.0M	$128.8M	$125.8M
YoY Change	20.44%	22.04%	26.1%
TOTAL LIABILITIES
Total Short-Term Liabilities	$456.7M	$430.3M	$399.1M
Total Long-Term Liabilities	$143.0M	$128.8M	$125.8M
Total Liabilities	$1.286B	$1.236B	$1.202B
YoY Change	11.98%	4.37%	7.38%
SHAREHOLDERS EQUITY
Retained Earnings	-$690.7M	-$761.5M	-$822.0M
YoY Change	-28.11%	-27.64%	-27.15%
Common Stock	$1.699M	$1.755M	$1.751M
YoY Change	-1.96%	-2.17%	-2.23%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$0.00	$306.6M	$177.6M
YoY Change		3.99%	-11.06%
Treasury Stock Shares	0.000 shares	5.823M shares	3.122M shares
Shareholders Equity	$3.362B	$3.273B	$3.287B
YoY Change
Total Liabilities & Shareholders Equity	$4.649B	$4.509B	$4.489B
YoY Change	6.31%	3.57%	5.14%

Cashflow Statement

Concept	2017 Q4	2017 Q3	2017 Q2
OPERATING ACTIVITIES
Net Income	$27.52M	$63.91M	$56.75M
YoY Change	-69.97%	-15.91%	-22.93%
Depreciation, Depletion And Amortization	$99.40M	$97.20M	$89.20M
YoY Change	18.33%	15.03%	4.82%
Cash From Operating Activities	$197.5M	$236.2M	$224.7M
YoY Change	7.22%	-6.23%	-8.02%
INVESTING ACTIVITIES
Capital Expenditures	-$106.9M	-$119.7M	-$97.00M
YoY Change	40.84%	49.81%	24.04%
Acquisitions
YoY Change
Other Investing Activities	-$95.30M	$17.30M	-$197.9M
YoY Change	7.44%	-156.54%	226.03%
Cash From Investing Activities	-$202.2M	-$102.4M	-$294.9M
YoY Change	22.77%	-7.33%	112.46%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-50.90M	-119.7M	-105.5M
YoY Change	-25.91%	39.02%	19.75%
NET CHANGE
Cash From Operating Activities	197.5M	236.2M	224.7M
Cash From Investing Activities	-202.2M	-102.4M	-294.9M
Cash From Financing Activities	-50.90M	-119.7M	-105.5M
Net Change In Cash	-55.60M	14.10M	-175.7M
YoY Change	13.01%	-74.5%	-1109.77%
FREE CASH FLOW
Cash From Operating Activities	$197.5M	$236.2M	$224.7M
Capital Expenditures	-$106.9M	-$119.7M	-$97.00M
Free Cash Flow	$304.4M	$355.9M	$321.7M
YoY Change	17.03%	7.26%	-0.25%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2018	akam	Adjustmentsto Additional Paidin Capital Derivative Purchase Relatedto Convertible Senior Notes AdjustmentstoAdditionalPaidinCapitalDerivativePurchaseRelatedtoConvertibleSeniorNotes	261740000	USD
CY2018	akam	Adjustmentsto Additional Paidin Capital Equity Componentof Convertible Debt Issuance Costs AdjustmentstoAdditionalPaidinCapitalEquityComponentofConvertibleDebtIssuanceCosts	4418000	USD
CY2017Q4	akam	Availableforsale Securities Current Excluding Restricted Trading Securities AvailableforsaleSecuritiesCurrentExcludingRestrictedTradingSecurities	398554000	USD
CY2018Q4	akam	Availableforsale Securities Current Excluding Restricted Trading Securities AvailableforsaleSecuritiesCurrentExcludingRestrictedTradingSecurities	855499000	USD
CY2017Q4	akam	Bandwidth And Co Location BandwidthAndCoLocation	72782000	USD
CY2018Q4	akam	Bandwidth And Co Location BandwidthAndCoLocation	76184000	USD
CY2016	akam	Capitalized Stockbased Compensation Relatedto Software CapitalizedStockbasedCompensationRelatedtoSoftware	23100000	USD
CY2017	akam	Capitalized Stockbased Compensation Relatedto Software CapitalizedStockbasedCompensationRelatedtoSoftware	28900000	USD
CY2018	akam	Capitalized Stockbased Compensation Relatedto Software CapitalizedStockbasedCompensationRelatedtoSoftware	34800000	USD
CY2016	akam	Chargesto Incomefrom Operations ChargestoIncomefromOperations	2099000	USD
CY2017	akam	Chargesto Incomefrom Operations ChargestoIncomefromOperations	3407000	USD
CY2018	akam	Chargesto Incomefrom Operations ChargestoIncomefromOperations	3824000	USD
CY2016	akam	Collectionsfrom Cash Basis Customers CollectionsfromCashBasisCustomers	2193000	USD
CY2017	akam	Collectionsfrom Cash Basis Customers CollectionsfromCashBasisCustomers	3051000	USD
CY2018	akam	Collectionsfrom Cash Basis Customers CollectionsfromCashBasisCustomers	3571000	USD
CY2017Q4	akam	Deferred Rent Noncurrent DeferredRentNoncurrent	31510000	USD
CY2018Q4	akam	Deferred Rent Noncurrent DeferredRentNoncurrent	42566000	USD
CY2017Q4	akam	Deferred Tax Assets Deferred Rent DeferredTaxAssetsDeferredRent	8000000	USD
CY2018Q4	akam	Deferred Tax Assets Deferred Rent DeferredTaxAssetsDeferredRent	11245000	USD
CY2017Q4	akam	Deferred Tax Assetstax Net Operating Loss And Carryforwards DeferredTaxAssetstaxNetOperatingLossAndCarryforwards	26698000	USD
CY2018Q4	akam	Deferred Tax Assetstax Net Operating Loss And Carryforwards DeferredTaxAssetstaxNetOperatingLossAndCarryforwards	15743000	USD
CY2017Q4	akam	Deferred Tax Liabilities Depreciationand Amortization DeferredTaxLiabilitiesDepreciationandAmortization	13933000	USD
CY2018Q4	akam	Deferred Tax Liabilities Depreciationand Amortization DeferredTaxLiabilitiesDepreciationandAmortization	23912000	USD
CY2016	akam	Effective Income Tax Rate Reconciliation Intercompany Saleof Intellectual Property Percent EffectiveIncomeTaxRateReconciliationIntercompanySaleofIntellectualPropertyPercent	0.000
CY2017	akam	Effective Income Tax Rate Reconciliation Intercompany Saleof Intellectual Property Percent EffectiveIncomeTaxRateReconciliationIntercompanySaleofIntellectualPropertyPercent	0.000
CY2018	akam	Effective Income Tax Rate Reconciliation Intercompany Saleof Intellectual Property Percent EffectiveIncomeTaxRateReconciliationIntercompanySaleofIntellectualPropertyPercent	0.033
CY2016	akam	Effective Income Tax Rate Reconciliation Releaseof Acquisition Related Uncertain Tax Position EffectiveIncomeTaxRateReconciliationReleaseofAcquisitionRelatedUncertainTaxPosition	0.000
CY2017	akam	Effective Income Tax Rate Reconciliation Releaseof Acquisition Related Uncertain Tax Position EffectiveIncomeTaxRateReconciliationReleaseofAcquisitionRelatedUncertainTaxPosition	0.029
CY2018	akam	Effective Income Tax Rate Reconciliation Releaseof Acquisition Related Uncertain Tax Position EffectiveIncomeTaxRateReconciliationReleaseofAcquisitionRelatedUncertainTaxPosition	0.000
CY2016	akam	Effective Income Tax Rate Reconciliation Tax Cutsand Jobs Actof2017 Percent EffectiveIncomeTaxRateReconciliationTaxCutsandJobsActof2017Percent	0.000
CY2017	akam	Effective Income Tax Rate Reconciliation Tax Cutsand Jobs Actof2017 Percent EffectiveIncomeTaxRateReconciliationTaxCutsandJobsActof2017Percent	0.064
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CY2016	akam	Employee Taxes Paid Related To Net Share Settlement Of Equity Awards EmployeeTaxesPaidRelatedToNetShareSettlementOfEquityAwards	45545000	USD
CY2017	akam	Employee Taxes Paid Related To Net Share Settlement Of Equity Awards EmployeeTaxesPaidRelatedToNetShareSettlementOfEquityAwards	58395000	USD
CY2018	akam	Employee Taxes Paid Related To Net Share Settlement Of Equity Awards EmployeeTaxesPaidRelatedToNetShareSettlementOfEquityAwards	64305000	USD
CY2018	akam	Income Tax Consequenceof Intra Entity Transfer IncomeTaxConsequenceofIntraEntityTransfer	-38601000	USD
CY2018	akam	Letter Of Credit Real Estate Leases LetterOfCreditRealEstateLeases	7800000	USD
CY2018	akam	Minimum Percentage Of Tax Benefit To Be Recognized MinimumPercentageOfTaxBenefitToBeRecognized	0.50
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CY2018Q4	akam	Number Of Servers NumberOfServers	200000	server
CY2018Q4	akam	Numberof Divisions NumberofDivisions	2	division
CY2017Q4	akam	Other Long Term Liabilities OtherLongTermLiabilities	24631000	USD
CY2018Q4	akam	Other Long Term Liabilities OtherLongTermLiabilities	54398000	USD
CY2014Q1	akam	Paymentsfor Purchaseof Convertible Note Hedgeand Warrant Transactions PaymentsforPurchaseofConvertibleNoteHedgeandWarrantTransactions	23300000	USD
CY2017Q4	akam	Prepaid Salesand Other Taxes Current PrepaidSalesandOtherTaxesCurrent	22973000	USD
CY2018Q4	akam	Prepaid Salesand Other Taxes Current PrepaidSalesandOtherTaxesCurrent	10751000	USD
CY2018Q4	akam	Property And Equipment Per Unit Value Minimum PropertyAndEquipmentPerUnitValueMinimum	1000	USD
CY2018	akam	Property And Equipment Useful Life Minimum PropertyAndEquipmentUsefulLifeMinimum	P1Y
CY2017Q4	akam	Property Plant And Equipment And Capitalized Software Net PropertyPlantAndEquipmentAndCapitalizedSoftwareNet	862535000	USD
CY2018Q4	akam	Property Plant And Equipment And Capitalized Software Net PropertyPlantAndEquipmentAndCapitalizedSoftwareNet	910618000	USD
CY2018	akam	Restricted Stock Units Vesting Conditions Service And Performance Based Granted Total RestrictedStockUnitsVestingConditionsServiceAndPerformanceBasedGrantedTotal	3488000	shares
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CY2018	akam	Tax Cutsand Jobs Actof2017 Incomplete Accounting Transition Taxfor Accumulated Foreign Earnings Provisional Income Tax Expense Benefit TaxCutsandJobsActof2017IncompleteAccountingTransitionTaxforAccumulatedForeignEarningsProvisionalIncomeTaxExpenseBenefit	5500000	USD
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CY2018Q4	akam	Total Accounts Receivable Reserves TotalAccountsReceivableReserves	1534000	USD
CY2016	akam	Total Stock Based Compensation Net Of Taxes TotalStockBasedCompensationNetOfTaxes	95492000	USD
CY2017	akam	Total Stock Based Compensation Net Of Taxes TotalStockBasedCompensationNetOfTaxes	108071000	USD
CY2018	akam	Total Stock Based Compensation Net Of Taxes TotalStockBasedCompensationNetOfTaxes	135311000	USD
CY2016Q4	akam	Unrecognized Tax Benefits Including Accrued Interest And Penalties UnrecognizedTaxBenefitsIncludingAccruedInterestAndPenalties	77100000	USD
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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	0001086222
CY2019Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	163212497	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
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CY2018	dei	Entity Registrant Name EntityRegistrantName	AKAMAI TECHNOLOGIES INC
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
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CY2017Q4	us-gaap	Assets Current AssetsCurrent	1346246000	USD
CY2018Q4	us-gaap	Assets Current AssetsCurrent	2535354000	USD
CY2017Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	958267000	USD
CY2018Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	1000	USD
CY2018Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	1054756000	USD
CY2017Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	2000	USD
CY2017Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	5602000	USD
CY2018Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	4770000	USD
CY2017Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	963867000	USD
CY2018Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	1059525000	USD
CY2018Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	3900000	USD
CY2017Q4	us-gaap	Available For Sale Securities Current AvailableForSaleSecuritiesCurrent	398554000	USD
CY2018Q4	us-gaap	Available For Sale Securities Current AvailableForSaleSecuritiesCurrent	855650000	USD
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	559713000	USD
CY2018Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	199257000	USD
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	398554000	USD
CY2018Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	855499000	USD
CY2017Q4	us-gaap	Available For Sale Securities Noncurrent AvailableForSaleSecuritiesNoncurrent	559713000	USD
CY2018Q4	us-gaap	Available For Sale Securities Noncurrent AvailableForSaleSecuritiesNoncurrent	199257000	USD
CY2016	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	1700000	USD
CY2017	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	5500000	USD
CY2018	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	1000000	USD
CY2016	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	36742000	USD
CY2017	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	27209000	USD
CY2018	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	54867000	USD
CY2017	us-gaap	Capitalized Computer Software Impairments1 CapitalizedComputerSoftwareImpairments1	36200000	USD
CY2018	us-gaap	Capitalized Computer Software Impairments1 CapitalizedComputerSoftwareImpairments1	4900000	USD
CY2018Q4	us-gaap	Capitalized Computer Software Net CapitalizedComputerSoftwareNet	32000000	USD
CY2017Q4	us-gaap	Capitalized Contract Cost Net Current CapitalizedContractCostNetCurrent	35044000	USD
CY2018Q4	us-gaap	Capitalized Contract Cost Net Current CapitalizedContractCostNetCurrent	41955000	USD
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	324169000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	313382000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1036455000	USD
CY2015Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	289910000	USD
CY2016Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	324626000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	314429000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1036987000	USD
CY2016	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	34716000	USD
CY2017	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-10197000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	722558000	USD
CY2014Q1	us-gaap	Class Of Warrant Or Right Exercise Price Of Warrants Or Rights1 ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1	104.49
CY2014Q1	us-gaap	Class Of Warrant Or Right Outstanding ClassOfWarrantOrRightOutstanding	7700000	shares
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	0.01
CY2018Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2017Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	700000000	shares
CY2018Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	700000000	shares
CY2017Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	169893324	shares
CY2018Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	162904550	shares
CY2017Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	169893324	shares
CY2018Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	162904550	shares
CY2017Q4	us-gaap	Common Stock Value CommonStockValue	1699000	USD
CY2018Q4	us-gaap	Common Stock Value CommonStockValue	1629000	USD
CY2016	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	305224000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	258511000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	271391000	USD
CY2017Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	70495000	USD
CY2018Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	69083000	USD
CY2017Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	6062000	USD
CY2018Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	4557000	USD
CY2017	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	45900000	USD
CY2018	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	71800000	USD
CY2017Q4	us-gaap	Convertible Long Term Notes Payable ConvertibleLongTermNotesPayable	662913000	USD
CY2018Q4	us-gaap	Convertible Long Term Notes Payable ConvertibleLongTermNotesPayable	874080000	USD
CY2017Q4	us-gaap	Convertible Notes Payable Current ConvertibleNotesPayableCurrent	0	USD
CY2018Q4	us-gaap	Convertible Notes Payable Current ConvertibleNotesPayableCurrent	686552000	USD
CY2017Q4	us-gaap	Convertible Preferred Stock Shares Reserved For Future Issuance ConvertiblePreferredStockSharesReservedForFutureIssuance	700000	shares
CY2018Q4	us-gaap	Convertible Preferred Stock Shares Reserved For Future Issuance ConvertiblePreferredStockSharesReservedForFutureIssuance	700000	shares
CY2016	us-gaap	Cost Of Revenue CostOfRevenue	809106000	USD
CY2017Q1	us-gaap	Cost Of Revenue CostOfRevenue	205727000	USD
CY2017Q2	us-gaap	Cost Of Revenue CostOfRevenue	214680000	USD
CY2017Q3	us-gaap	Cost Of Revenue CostOfRevenue	225490000	USD
CY2017Q4	us-gaap	Cost Of Revenue CostOfRevenue	229940000	USD
CY2017	us-gaap	Cost Of Revenue CostOfRevenue	875837000	USD
CY2018Q1	us-gaap	Cost Of Revenue CostOfRevenue	234825000	USD
CY2018Q2	us-gaap	Cost Of Revenue CostOfRevenue	235487000	USD
CY2018Q3	us-gaap	Cost Of Revenue CostOfRevenue	239246000	USD
CY2018Q4	us-gaap	Cost Of Revenue CostOfRevenue	243927000	USD
CY2018	us-gaap	Cost Of Revenue CostOfRevenue	953485000	USD
CY2016	us-gaap	Costs And Expenses CostsAndExpenses	1881478000	USD
CY2017	us-gaap	Costs And Expenses CostsAndExpenses	2174746000	USD
CY2018	us-gaap	Costs And Expenses CostsAndExpenses	2351975000	USD
CY2016	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	89816000	USD
CY2017	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	41090000	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-29982000	USD
CY2016	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	39952000	USD
CY2017	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	51244000	USD
CY2018	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	64274000	USD
CY2016	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	6238000	USD
CY2017	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	6336000	USD
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	8085000	USD
CY2016	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	6903000	USD
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-24136000	USD
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	5954000	USD
CY2016	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	3599000	USD
CY2017	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-4367000	USD
CY2018	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-7140000	USD
CY2017Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	36231000	USD
CY2018Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	34913000	USD
CY2016	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	9629000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-7244000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	2339000	USD
CY2017Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	132151000	USD
CY2018Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	147503000	USD
CY2017Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	17823000	USD
CY2018Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	19624000	USD
CY2016	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-86000	USD
CY2017	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	21689000	USD
CY2018	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	701000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	6460000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	4188000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	150559000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	165616000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	18408000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	15289000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	11909000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	16483000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Other Tax Carryforwards DeferredTaxAssetsOtherTaxCarryforwards	49135000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Other Tax Carryforwards DeferredTaxAssetsOtherTaxCarryforwards	70235000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards General Business DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness	6611000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards General Business DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness	2245000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Research DeferredTaxAssetsTaxCreditCarryforwardsResearch	65900000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Research DeferredTaxAssetsTaxCreditCarryforwardsResearch	88200000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	20557000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	20345000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	19950000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	24093000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	1239000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	1039000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	USD
CY2018Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	2824000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Deferred Expense DeferredTaxLiabilitiesDeferredExpense	14750000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Deferred Expense DeferredTaxLiabilitiesDeferredExpense	14232000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Capitalized Software DeferredTaxLiabilitiesDeferredExpenseCapitalizedSoftware	54687000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Capitalized Software DeferredTaxLiabilitiesDeferredExpenseCapitalizedSoftware	63586000	USD
CY2016	us-gaap	Investment Income Interest InvestmentIncomeInterest	14702000	USD
CY2018Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	5461770000	USD
CY2017	us-gaap	Investment Income Interest InvestmentIncomeInterest	17855000	USD
CY2018	us-gaap	Investment Income Interest InvestmentIncomeInterest	26940000	USD
CY2016	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	50300000	USD
CY2017	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	58800000	USD
CY2018	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	63200000	USD
CY2017Q4	us-gaap	Liabilities Liabilities	1286447000	USD
CY2018Q4	us-gaap	Liabilities Liabilities	2269910000	USD
CY2017Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	4648916000	USD
CY2018	us-gaap	Interest Expense InterestExpense	43202000	USD
CY2017Q4	us-gaap	Liabilities Current LiabilitiesCurrent	456694000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	343089000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	48781000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	45773000	USD
CY2016	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	13700000	USD
CY2017	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	15600000	USD
CY2018	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	16700000	USD
CY2016	us-gaap	Depreciation Depreciation	307700000	USD
CY2017	us-gaap	Depreciation Depreciation	341400000	USD
CY2018	us-gaap	Depreciation Depreciation	401200000	USD
CY2016	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	334302000	USD
CY2017	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	372313000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	434520000	USD
CY2016	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.83
CY2017Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.43
CY2017Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.33
CY2017Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.37
CY2017Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.16
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.30
CY2018Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.32
CY2018Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.25
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.65
CY2018Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.58
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.78
CY2016	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.82
CY2017Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.43
CY2017Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.33
CY2017Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.37
CY2017Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.16
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.29
CY2018Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.31
CY2018Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.25
CY2018Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.64
CY2018Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.57
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.76
CY2016	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-7891000	USD
CY2017	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	12990000	USD
CY2018	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-12844000	USD
CY2016	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.312
CY2017	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.291
CY2018	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.130
CY2016	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Deductions Qualified Production Activities EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities	0.017
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Deductions Qualified Production Activities EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities	0.007
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Deductions Qualified Production Activities EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities	0.000
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.034
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.079
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.060
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0.027
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0.037
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0.010
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.001
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.010
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.009
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies State And Local EffectiveIncomeTaxRateReconciliationTaxContingenciesStateAndLocal	0.020
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies State And Local EffectiveIncomeTaxRateReconciliationTaxContingenciesStateAndLocal	0.015
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies State And Local EffectiveIncomeTaxRateReconciliationTaxContingenciesStateAndLocal	0.012
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	0.033
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	0.070
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	0.076
CY2017Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	150784000	USD
CY2018Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	180301000	USD
CY2016	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	23093000	USD
CY2017	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	28851000	USD
CY2018	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	34785000	USD
CY2018Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	268400000	USD
CY2018	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P1Y9M18D
CY2016	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	49014000	USD
CY2017	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	56237000	USD
CY2018	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	48502000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	201542000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	230843000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	36600000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	17100000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	22400000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	28000000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	33900000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	402801000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	399191000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	201259000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	168348000	USD
CY2016	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	439916000	USD
CY2017	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	509165000	USD
CY2018	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	574067000	USD
CY2016Q4	us-gaap	Goodwill Goodwill	1228503000	USD
CY2017Q4	us-gaap	Goodwill Goodwill	1498688000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	1487404000	USD
CY2017	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	10546000	USD
CY2018	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	-4617000	USD
CY2017	us-gaap	Goodwill Purchase Accounting Adjustments GoodwillPurchaseAccountingAdjustments	4217000	USD
CY2018	us-gaap	Goodwill Purchase Accounting Adjustments GoodwillPurchaseAccountingAdjustments	-6667000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	280092000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	92588000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	186270000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	221604000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	370468000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	466362000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	314192000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-27379000	USD
CY2018	us-gaap	Income Tax Examination Estimate Of Possible Loss IncomeTaxExaminationEstimateOfPossibleLoss	35000000	USD
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	145635000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	91426000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	44716000	USD
CY2016	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-787000	USD
CY2017	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-430000	USD
CY2018	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	2824000	USD
CY2016	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	120233000	USD
CY2017	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	91640000	USD
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	45129000	USD
CY2016	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	18491000	USD
CY2017	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	33232000	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	42238000	USD
CY2016	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	2970000	USD
CY2017	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	50054000	USD
CY2018	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	30445000	USD
CY2016	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	-3512000	USD
CY2017	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	2938000	USD
CY2018	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	-919000	USD
CY2016	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	5484000	USD
CY2017	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	16378000	USD
CY2018	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	9422000	USD
CY2016	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	26202000	USD
CY2017	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-14442000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-14142000	USD
CY2016	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-42145000	USD
CY2017	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	28968000	USD
CY2018	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	4132000	USD
CY2016	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	0	shares
CY2017	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	0	shares
CY2018	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	0	shares
CY2016	us-gaap	Incremental Common Shares Attributable To Conversion Of Debt Securities IncrementalCommonSharesAttributableToConversionOfDebtSecurities	0	shares
CY2017	us-gaap	Incremental Common Shares Attributable To Conversion Of Debt Securities IncrementalCommonSharesAttributableToConversionOfDebtSecurities	0	shares
CY2018	us-gaap	Incremental Common Shares Attributable To Conversion Of Debt Securities IncrementalCommonSharesAttributableToConversionOfDebtSecurities	0	shares
CY2016	us-gaap	Incremental Common Shares Attributable To Participating Nonvested Shares With Non Forfeitable Dividend Rights IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights	914000	shares
CY2017	us-gaap	Incremental Common Shares Attributable To Participating Nonvested Shares With Non Forfeitable Dividend Rights IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights	892000	shares
CY2018	us-gaap	Incremental Common Shares Attributable To Participating Nonvested Shares With Non Forfeitable Dividend Rights IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights	1744000	shares
CY2016	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	384000	shares
CY2017	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	260000	shares
CY2018	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	132000	shares
CY2017Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	201259000	USD
CY2018Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	168348000	USD
CY2016	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	3402000	USD
CY2017	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	3987000	USD
CY2018	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	4533000	USD
CY2016	us-gaap	Interest Costs Incurred InterestCostsIncurred	22040000	USD
CY2017	us-gaap	Interest Costs Incurred InterestCostsIncurred	22826000	USD
CY2018	us-gaap	Interest Costs Incurred InterestCostsIncurred	46493000	USD
CY2016	us-gaap	Interest Expense InterestExpense	18638000	USD
CY2017	us-gaap	Interest Expense InterestExpense	18839000	USD
CY2018Q4	us-gaap	Liabilities Current LiabilitiesCurrent	1210709000	USD
CY2018Q4	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	686400000	USD
CY2017Q4	us-gaap	Marketable Securities Noncurrent MarketableSecuritiesNoncurrent	567592000	USD
CY2018Q4	us-gaap	Marketable Securities Noncurrent MarketableSecuritiesNoncurrent	209066000	USD
CY2016	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-359779000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-365005000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	233608000	USD
CY2016	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-469426000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-459165000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-506533000	USD
CY2016	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	871812000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	800983000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1008327000	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	320727000	USD
CY2017Q1	us-gaap	Net Income Loss NetIncomeLoss	74583000	USD
CY2017Q2	us-gaap	Net Income Loss NetIncomeLoss	56752000	USD
CY2017Q3	us-gaap	Net Income Loss NetIncomeLoss	63911000	USD
CY2017Q4	us-gaap	Net Income Loss NetIncomeLoss	27520000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	222766000	USD
CY2018Q1	us-gaap	Net Income Loss NetIncomeLoss	53714000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	43061000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	107583000	USD
CY2018Q4	us-gaap	Net Income Loss NetIncomeLoss	94015000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	298373000	USD
CY2018	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	1	segment
CY2016	us-gaap	Operating Income Loss OperatingIncomeLoss	466510000	USD
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	314289000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	362499000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	951254000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	54561000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	70101000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	72579000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	75991000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	78683000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	599339000	USD
CY2016	us-gaap	Operating Leases Income Statement Sublease Revenue OperatingLeasesIncomeStatementSubleaseRevenue	1300000	USD
CY2017	us-gaap	Operating Leases Income Statement Sublease Revenue OperatingLeasesIncomeStatementSubleaseRevenue	3600000	USD
CY2018	us-gaap	Operating Leases Income Statement Sublease Revenue OperatingLeasesIncomeStatementSubleaseRevenue	3800000	USD
CY2017Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	8368000	USD
CY2018Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	10072000	USD
CY2017Q4	us-gaap	Other Assets Current OtherAssetsCurrent	29302000	USD
CY2018Q4	us-gaap	Other Assets Current OtherAssetsCurrent	18711000	USD
CY2017Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	136365000	USD
CY2018Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	116067000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-14815000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	36151000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-27585000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	35745000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-26982000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-26982000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-15503000	USD
CY2016	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-688000	USD
CY2017	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-406000	USD
CY2018	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	603000	USD
CY2016	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-432000	USD
CY2017	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-245000	USD
CY2018	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	200000	USD
CY2017Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	22178000	USD
CY2018Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	27681000	USD
CY2017Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	142955000	USD
CY2018Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	160940000	USD
CY2016	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	3788000	USD
CY2017	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	887000	USD
CY2018	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-3148000	USD
CY2017Q4	us-gaap	Other Prepaid Expense Current OtherPrepaidExpenseCurrent	28866000	USD
CY2018Q4	us-gaap	Other Prepaid Expense Current OtherPrepaidExpenseCurrent	22871000	USD
CY2016	us-gaap	Other Restructuring Costs OtherRestructuringCosts	4587000	USD
CY2017	us-gaap	Other Restructuring Costs OtherRestructuringCosts	31965000	USD
CY2018	us-gaap	Other Restructuring Costs OtherRestructuringCosts	4940000	USD
CY2014Q1	us-gaap	Payments For Hedge Financing Activities PaymentsForHedgeFinancingActivities	101300000	USD
CY2016	us-gaap	Payments For Hedge Financing Activities PaymentsForHedgeFinancingActivities	0	USD
CY2017	us-gaap	Payments For Hedge Financing Activities PaymentsForHedgeFinancingActivities	0	USD
CY2018	us-gaap	Payments For Hedge Financing Activities PaymentsForHedgeFinancingActivities	261740000	USD
CY2016	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-786000	USD
CY2017	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	1586000	USD
CY2018	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	2066000	USD
CY2014Q1	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	62000000	USD
CY2016	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	373794000	USD
CY2017	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	361194000	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	750000000	USD
CY2016	us-gaap	Payments For Restructuring PaymentsForRestructuring	4488000	USD
CY2017	us-gaap	Payments For Restructuring PaymentsForRestructuring	9110000	USD
CY2018	us-gaap	Payments For Restructuring PaymentsForRestructuring	24854000	USD
CY2016	us-gaap	Payments For Software PaymentsForSoftware	135340000	USD
CY2017	us-gaap	Payments For Software PaymentsForSoftware	160632000	USD
CY2018	us-gaap	Payments For Software PaymentsForSoftware	188132000	USD
CY2016	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	781061000	USD
CY2017	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	326497000	USD
CY2018	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	873697000	USD
CY2016	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	95439000	USD
CY2017	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	369073000	USD
CY2018	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	79000	USD
CY2016	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	180949000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	254146000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	217609000	USD
CY2017Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2018Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2017Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000	shares
CY2018Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000	shares
CY2018	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	18501000	USD
CY2016	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	59560000	USD
CY2017	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	55680000	USD
CY2018	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	62608000	USD
CY2017Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2018Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2017Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2018Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2017Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2018Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2017Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	172853000	USD
CY2018Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	163360000	USD
CY2017Q4	us-gaap	Prepaid Taxes PrepaidTaxes	30314000	USD
CY2018Q4	us-gaap	Prepaid Taxes PrepaidTaxes	47196000	USD
CY2016	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt	0	USD
CY2017	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt	0	USD
CY2018	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt	1132185000	USD
CY2016	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	1664000	USD
CY2017	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	6750000	USD
CY2014Q1	us-gaap	Proceeds From Issuance Of Warrants ProceedsFromIssuanceOfWarrants	78000000	USD
CY2016	us-gaap	Proceeds From Issuance Of Warrants ProceedsFromIssuanceOfWarrants	0	USD
CY2017	us-gaap	Proceeds From Issuance Of Warrants ProceedsFromIssuanceOfWarrants	0	USD
CY2018	us-gaap	Proceeds From Issuance Of Warrants ProceedsFromIssuanceOfWarrants	119945000	USD
CY2016	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	664837000	USD
CY2017	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	432853000	USD
CY2018	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	758481000	USD
CY2016	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	0	USD
CY2017	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-1096000	USD
CY2018	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-5085000	USD
CY2016	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	57740000	USD
CY2017	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	219916000	USD
CY2018	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	16569000	USD
CY2017	us-gaap	Property Plant And Equipment Disposals PropertyPlantAndEquipmentDisposals	174600000	USD
CY2018	us-gaap	Property Plant And Equipment Disposals PropertyPlantAndEquipmentDisposals	208000000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	2346982000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	2587837000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	862535000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	910618000	USD
CY2016	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	167628000	USD
CY2017	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	222434000	USD
CY2018	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	246165000	USD
CY2016Q4	us-gaap	Restricted Cash RestrictedCash	457000	USD
CY2017Q4	us-gaap	Restricted Cash RestrictedCash	1047000	USD
CY2018Q4	us-gaap	Restricted Cash RestrictedCash	532000	USD
CY2016	us-gaap	Restructuring Charges RestructuringCharges	10301000	USD
CY2017	us-gaap	Restructuring Charges RestructuringCharges	54884000	USD
CY2018	us-gaap	Restructuring Charges RestructuringCharges	27594000	USD
CY2015Q4	us-gaap	Restructuring Reserve RestructuringReserve	387000	USD
CY2016Q4	us-gaap	Restructuring Reserve RestructuringReserve	1613000	USD
CY2017Q4	us-gaap	Restructuring Reserve RestructuringReserve	14243000	USD
CY2017Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-690662000	USD
CY2018Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-430890000	USD
CY2016	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	2347988000	USD
CY2017Q1	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	600293000	USD
CY2017Q2	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	605832000	USD
CY2017Q3	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	624440000	USD
CY2017Q4	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	658470000	USD
CY2017	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	2489035000	USD
CY2018Q1	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	668724000	USD
CY2018Q4	us-gaap	Restructuring Reserve RestructuringReserve	10981000	USD
CY2016	us-gaap	Restructuring Reserve Settled Without Cash2 RestructuringReserveSettledWithoutCash2	4587000	USD
CY2017	us-gaap	Restructuring Reserve Settled Without Cash2 RestructuringReserveSettledWithoutCash2	33144000	USD
CY2018	us-gaap	Restructuring Reserve Settled Without Cash2 RestructuringReserveSettledWithoutCash2	6529000	USD
CY2018	us-gaap	Restructuring Reserve Translation And Other Adjustment RestructuringReserveTranslationAndOtherAdjustment	527000	USD
CY2018Q2	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	662759000	USD
CY2018Q3	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	669628000	USD
CY2018Q4	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	713363000	USD
CY2018	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	2714474000	USD
CY2018Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	2400000000	USD
CY2018Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2018Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1
CY2018Q4	us-gaap	Revenue Remaining Performance Obligation Percentage RevenueRemainingPerformanceObligationPercentage	0.70
CY2016	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	427885000	USD
CY2017	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	481522000	USD
CY2018	us-gaap	Selling And Marketing Expense SellingAndMarketingExpense	517353000	USD
CY2016	us-gaap	Share Based Compensation ShareBasedCompensation	144506000	USD
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	164308000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	183813000	USD
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	120000	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	37.33
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	2852000	USD
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	339000	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	120000	shares
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	36.36
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	37.33
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue	2852000	USD
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber	120000	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice	37.33
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	35.83
CY2018Q4	us-gaap	Share Price SharePrice	61.08
CY2018Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	2852000	USD
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P1Y9M11D
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P1Y9M11D
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1	P1Y9M11D
CY2018Q4	us-gaap	Significant Change In Unrecognized Tax Benefits Is Reasonably Possible Amount Of Unrecorded Benefit SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleAmountOfUnrecordedBenefit	33200000	USD
CY2017	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	42302000	USD
CY2018	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	50688000	USD
CY2013Q4	us-gaap	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	750000000.0	USD
CY2016Q1	us-gaap	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	1000000000.0	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	3362469000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	3191860000	USD
CY2018	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	219000	shares
CY2017Q4	us-gaap	Supplies Supplies	26354000	USD
CY2016	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	39914000	USD
CY2018Q4	us-gaap	Supplies Supplies	21876000	USD
CY2017Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	47584000	USD
CY2018Q4	us-gaap	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	1100000000.0	USD
CY2018Q1	us-gaap	Stock Repurchase Program Remaining Authorized Repurchase Amount1 StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1	750000000	USD
CY2018Q4	us-gaap	Stock Repurchase Program Remaining Authorized Repurchase Amount1 StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1	1100000000	USD
CY2015Q4	us-gaap	Stockholders Equity StockholdersEquity	3162865000	USD
CY2016Q4	us-gaap	Stockholders Equity StockholdersEquity	3270218000	USD
CY2018Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	59578000	USD
CY2016	us-gaap	Treasury Stock Retired Cost Method Amount TreasuryStockRetiredCostMethodAmount	0	USD
CY2017	us-gaap	Treasury Stock Retired Cost Method Amount TreasuryStockRetiredCostMethodAmount	0	USD
CY2018	us-gaap	Treasury Stock Retired Cost Method Amount TreasuryStockRetiredCostMethodAmount	0	USD
CY2016	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	373794000	USD
CY2017	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	361194000	USD
CY2018	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	750000000	USD
CY2015Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	65290000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	69117000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	85845000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	64892000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	6491000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	277000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	15287000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	2038000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	5205000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	13700000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	10700000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	11800000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	3900000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	2300000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	1300000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	6252000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	27163000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	3021000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	6391000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	2692000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	2704000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	287000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	12850000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	6186000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	67800000	USD
CY2016	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	176215000	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	172711000	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	171559000	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	169188000	shares
CY2016	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	174917000	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	167312000	shares
CY2018	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Concentrations of Credit Risk</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The amounts reflected in the consolidated balance sheets for accounts receivable, other current assets, accounts payable, accrued liabilities and other current liabilities approximate fair values due to their short-term maturities. The Company maintains the majority of its cash, cash equivalents and marketable securities with major financial institutions that the Company believes to be of high credit standing. The Company believes that, as of </font><font style="font-family:inherit;font-size:10pt;">December 31, 2018</font><font style="font-family:inherit;font-size:10pt;">, its concentration of credit risk related to cash equivalents and marketable securities was not significant.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Concentrations of credit risk with respect to accounts receivable are primarily limited to certain customers to which the Company makes substantial sales. The Company’s customer base consists of a large number of geographically-dispersed customers diversified across several industries. To reduce risk, the Company routinely assesses the financial strength of its customers. Based on such assessments, the Company believes that its accounts receivable credit risk exposure is limited. For the years ended </font><font style="font-family:inherit;font-size:10pt;">December 31, 2018, 2017 and 2016</font><font style="font-family:inherit;font-size:10pt;">, no customer accounted for more than </font><font style="font-family:inherit;font-size:10pt;">10%</font><font style="font-family:inherit;font-size:10pt;"> of total revenue. 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 had an accounts receivable balance greater than </font><font style="font-family:inherit;font-size:10pt;">10%</font><font style="font-family:inherit;font-size:10pt;"> of total accounts receivable. The Company believes that, as of </font><font style="font-family:inherit;font-size:10pt;">December 31, 2018</font><font style="font-family:inherit;font-size:10pt;">, its concentration of credit risk related to accounts receivable was not significant.</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%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Use of Estimates</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;text-indent:24px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The Company prepares its consolidated financial statements in conformity with accounting principles generally accepted in the United States of America. These principles require management to make estimates, judgments and assumptions that affect the reported amounts of assets, liabilities, revenue and expenses, and the amounts disclosed in the related notes to the consolidated financial statements. Actual results and outcomes may differ materially from management’s estimates, judgments and assumptions. Significant estimates, judgments and assumptions used in these financial statements include, but are not limited to, those related to revenue, accounts receivable and related reserves, valuation and impairment of investments and marketable securities, valuation and useful lives of acquired intangible assets, useful lives and realizability of long-lived assets, capitalized internal-use software development costs, income tax reserves and accounting for stock-based compensation. Estimates are periodically reviewed in light of changes in circumstances, facts and experience. The effects of material revisions in estimates are reflected in the consolidated financial statements prospectively from the date of the change in estimate.</font></div></div>

Files In Submission

Name	View Source	Status
0001086222-19-000066-index-headers.html	Edgar Link	pending
0001086222-19-000066-index.html	Edgar Link	pending
0001086222-19-000066.txt	Edgar Link	pending
0001086222-19-000066-xbrl.zip	Edgar Link	pending
akam-20181231.xml	Edgar Link	completed
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akam-20181231_cal.xml	Edgar Link	unprocessable
akam-20181231_def.xml	Edgar Link	unprocessable
akam-20181231_lab.xml	Edgar Link	unprocessable
akam-20181231_pre.xml	Edgar Link	unprocessable
akam10k123118.htm	Edgar Link	pending
exhibit102_10k2018.htm	Edgar Link	pending
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$AKAM
Akamai Technologies Inc Stock $akam

2017 Q4 Form 10-K Financial Statement

#000108622219000066 Filed on February 28, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$AKAM Akamai Technologies Inc Stock $akam

2017 Q4 Form 10-K Financial Statement

#000108622219000066 Filed on February 28, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$AKAM
Akamai Technologies Inc Stock $akam