$W
Wayfair Inc. Stock $w

$w Overview Financials Valuation SEC Filings Company Website

2019 Q1 Form 10-K Financial Statement

#000161670720000025 Filed on February 28, 2020

Income Statement

Concept	2019 Q1	2019	2018 Q4
Revenue	$1.945B	$9.127B	$2.014B
YoY Change	38.49%	34.63%	39.96%
Cost Of Revenue	$1.474B	$6.980B	$1.607B
YoY Change	36.46%	34.43%	38.6%
Gross Profit	$470.5M	$2.147B	$407.4M
YoY Change	45.28%	35.31%	45.6%
Gross Profit Margin	24.19%	23.52%	20.23%
Selling, General & Admin	$587.6M	$2.528B	$502.6M
YoY Change	69.34%	50.66%	4.04%
% of Gross Profit	124.9%	117.75%	123.37%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$39.58M	$192.0M	$36.10M
YoY Change	52.47%	55.41%	47.95%
% of Gross Profit	8.41%	8.94%	8.86%
Operating Expenses	$664.1M	$3.077B	$538.7M
YoY Change	55.56%	49.37%	54.98%
Operating Profit	-$193.6M	-$930.0M	-$131.3M
YoY Change	87.87%	96.5%	93.66%
Interest Expense	-$9.238M	-$55.00M	-$10.30M
YoY Change	70.85%	92.58%	83.93%
% of Operating Profit
Other Income/Expense, Net	$3.078M	$3.000M	-$2.900M
YoY Change	227.1%	-1570.59%	-825.0%
Pretax Income	-$199.8M	-$982.0M	-$142.8M
YoY Change	85.79%	199.98%	95.62%
Income Tax	$600.0K	$3.000M	$900.0K
% Of Pretax Income
Net Earnings	-$200.4M	-$985.0M	-$143.8M
YoY Change	85.93%	95.41%	97.53%
Net Earnings / Revenue	-10.3%	-10.79%	-7.14%
Basic Earnings Per Share		-$10.68
Diluted Earnings Per Share	-$2.200M	-$10.68	-$1.589M
COMMON SHARES
Basic Shares Outstanding		92.00M shares
Diluted Shares Outstanding		92.00M shares

Balance Sheet

Concept	2019 Q1	2019	2018 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$805.7M	$987.0M	$963.7M
YoY Change	38.41%	2.42%	55.44%
Cash & Equivalents	$722.4M	$582.8M	$849.5M
Short-Term Investments	$83.30M	$404.3M	$114.3M
Other Short-Term Assets	$207.9M	$180.4M	$195.4M
YoY Change	40.19%	23.56%	49.39%
Inventory	$43.64M	$61.70M	$46.16M
Prepaid Expenses			$31.00M
Receivables	$60.60M	$99.70M	$50.60M
Other Receivables	$0.00	$48.30M	$0.00
Total Short-Term Assets	$1.118B	$1.377B	$1.256B
YoY Change	40.28%	9.65%	53.76%
LONG-TERM ASSETS
Property, Plant & Equipment	$379.3M	$1.388B	$607.0M
YoY Change	-6.19%	128.65%	68.07%
Goodwill	$400.0K		$2.100M
YoY Change	-80.95%		10.53%
Intangibles
YoY Change
Long-Term Investments	$0.00	$155.7M	$6.500M
YoY Change	-100.0%	2295.38%	-69.91%
Other Assets	$12.01M	$13.50M	$18.83M
YoY Change	8.44%	-28.19%	74.7%
Total Long-Term Assets	$996.0M	$1.576B	$634.9M
YoY Change	131.87%	148.17%	60.1%
TOTAL ASSETS
Total Short-Term Assets	$1.118B	$1.377B	$1.256B
Total Long-Term Assets	$996.0M	$1.576B	$634.9M
Total Assets	$2.114B	$2.953B	$1.891B
YoY Change	72.36%	56.17%	55.83%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$706.0M	$908.1M	$650.2M
YoY Change	45.37%	39.66%	47.64%
Accrued Expenses	$207.2M	$452.2M	$213.0M
YoY Change	80.94%	71.94%	77.13%
Deferred Revenue			$148.1M
YoY Change			57.31%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$1.230B	$1.612B	$1.139B
YoY Change	53.79%	41.46%	54.0%
LONG-TERM LIABILITIES
Long-Term Debt	$750.2M	$1.456B	$922.0M
YoY Change	78.7%	57.94%	121.9%
Other Long-Term Liabilities	$4.392M	$829.5M	$160.4M
YoY Change	-96.73%	417.14%	50.61%
Total Long-Term Liabilities	$4.392M	$2.286B	$160.4M
YoY Change	-96.73%	111.17%	50.61%
TOTAL LIABILITIES
Total Short-Term Liabilities	$1.230B	$1.612B	$1.139B
Total Long-Term Liabilities	$4.392M	$2.286B	$160.4M
Total Liabilities	$2.593B	$3.897B	$2.222B
YoY Change	91.56%	75.43%	76.07%
SHAREHOLDERS EQUITY
Retained Earnings	-$1.081B		-$1.083B
YoY Change	57.47%		85.63%
Common Stock
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	-$479.1M	-$944.2M	-$331.0M
YoY Change
Total Liabilities & Shareholders Equity	$2.114B	$2.953B	$1.891B
YoY Change	72.36%	56.17%	55.83%

Cashflow Statement

Concept	2019 Q1	2019	2018 Q4
OPERATING ACTIVITIES
Net Income	-$200.4M	-$985.0M	-$143.8M
YoY Change	85.93%	95.41%	97.53%
Depreciation, Depletion And Amortization	$39.58M	$192.0M	$36.10M
YoY Change	52.47%	55.41%	47.95%
Cash From Operating Activities	-$81.35M	-$197.0M	$42.60M
YoY Change	522.07%	-332.14%	15.76%
INVESTING ACTIVITIES
Capital Expenditures	$60.63M	$272.0M	-$65.70M
YoY Change	183.79%	70.85%	85.07%
Acquisitions
YoY Change
Other Investing Activities	-$2.838M	$15.00M	-$83.90M
YoY Change	-1162.92%	3668.84%	-2430.56%
Cash From Investing Activities	-$44.70M	-$855.0M	-$149.6M
YoY Change	91.05%	228.48%	370.44%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net		$0.00
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-$889.0K	$787.0M	468.5M
YoY Change	145.58%	68.36%	-234350.0%
NET CHANGE
Cash From Operating Activities	-$81.35M	-$197.0M	42.60M
Cash From Investing Activities	-$44.70M	-$855.0M	-149.6M
Cash From Financing Activities	-$889.0K	$787.0M	468.5M
Net Change In Cash	-$127.1M	-$267.0M	361.5M
YoY Change	244.13%	-191.91%	7431.25%
FREE CASH FLOW
Cash From Operating Activities	-$81.35M	-$197.0M	$42.60M
Capital Expenditures	$60.63M	$272.0M	-$65.70M
Free Cash Flow	-$142.0M	-$469.0M	$108.3M
YoY Change	312.24%	530.85%	49.79%

Facts In Submission

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CY2018	us-gaap	Net Income Loss NetIncomeLoss	-504080000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	583000	USD
CY2018	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	138000	USD
CY2018	w	Stock Issued During Period Value Vesting Of Restricted Stock Units StockIssuedDuringPeriodValueVestingOfRestrictedStockUnits	3000	USD
CY2018	w	Stock Withheld Value Related To Net Settlement Of Restricted Stock Units StockWithheldValueRelatedToNetSettlementOfRestrictedStockUnits	1284000	USD
CY2018	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	133638000	USD
CY2018	us-gaap	Adjustments To Additional Paid In Capital Equity Component Of Convertible Debt AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt	83953000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	-330721000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-984584000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	353000	USD
CY2019	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	113000	USD
CY2019	w	Stock Issued During Period Value Vesting Of Restricted Stock Units StockIssuedDuringPeriodValueVestingOfRestrictedStockUnits	3000	USD
CY2019	w	Stock Withheld Value Related To Net Settlement Of Restricted Stock Units StockWithheldValueRelatedToNetSettlementOfRestrictedStockUnits	2236000	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	240448000	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Equity Component Of Convertible Debt AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt	130566000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	-944208000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-984584000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	-504080000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	-244614000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	192419000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	123542000	USD
CY2017	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	87020000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	227451000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	127564000	USD
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	67840000	USD
CY2019	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	62111000	USD
CY2018	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	22585000	USD
CY2017	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	5830000	USD
CY2019	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	1691000	USD
CY2018	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	56000	USD
CY2017	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-1198000	USD
CY2017	w	Increase Decrease In Deferred Revenue And Other Liabilities IncreaseDecreaseInDeferredRevenueAndOtherLiabilities	81354000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	1329000	USD
CY2018	w	Payments For Premiums For Capped Call Confirmations Debt Issuance PaymentsForPremiumsForCappedCallConfirmationsDebtIssuance	93438000	USD
CY2017	w	Payments For Premiums For Capped Call Confirmations Debt Issuance PaymentsForPremiumsForCappedCallConfirmationsDebtIssuance	44160000	USD
CY2019	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	49187000	USD
CY2018	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	12792000	USD
CY2017	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	18172000	USD
CY2019	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	15631000	USD
CY2018	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	18319000	USD
CY2017	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	9454000	USD
CY2019	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	32590000	USD
CY2018	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	65195000	USD
CY2017	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	39124000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	330325000	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	285064000	USD
CY2017	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	104184000	USD
CY2019	w	Increase Decrease In Deferred Revenue And Other Liabilities IncreaseDecreaseInDeferredRevenueAndOtherLiabilities	75888000	USD
CY2018	w	Increase Decrease In Deferred Revenue And Other Liabilities IncreaseDecreaseInDeferredRevenueAndOtherLiabilities	134705000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	8157000	USD
CY2017	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	2428000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-196818000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	84861000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	33634000	USD
CY2019	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	553858000	USD
CY2018	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	99002000	USD
CY2017	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	54551000	USD
CY2019	us-gaap	Proceeds From Sale Maturity And Collection Of Shortterm Investments ProceedsFromSaleMaturityAndCollectionOfShorttermInvestments	115468000	USD
CY2018	us-gaap	Proceeds From Sale Maturity And Collection Of Shortterm Investments ProceedsFromSaleMaturityAndCollectionOfShorttermInvestments	61068000	USD
CY2017	us-gaap	Proceeds From Sale Maturity And Collection Of Shortterm Investments ProceedsFromSaleMaturityAndCollectionOfShorttermInvestments	71095000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	271742000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	159205000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	100451000	USD
CY2019	w	Payments To Site And Software Development Costs PaymentsToSiteAndSoftwareDevelopmentCosts	129138000	USD
CY2018	w	Payments To Site And Software Development Costs PaymentsToSiteAndSoftwareDevelopmentCosts	62750000	USD
CY2017	w	Payments To Site And Software Development Costs PaymentsToSiteAndSoftwareDevelopmentCosts	46428000	USD
CY2019	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	15567000	USD
CY2018	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	398000	USD
CY2017	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	0	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-854837000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-260287000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-130335000	USD
CY2019	us-gaap	Proceeds From Debt Net Of Issuance Costs ProceedsFromDebtNetOfIssuanceCosts	935146000	USD
CY2018	us-gaap	Proceeds From Debt Net Of Issuance Costs ProceedsFromDebtNetOfIssuanceCosts	562047000	USD
CY2017	us-gaap	Proceeds From Debt Net Of Issuance Costs ProceedsFromDebtNetOfIssuanceCosts	420449000	USD
CY2019	w	Payments For Premiums For Capped Call Confirmations Debt Issuance PaymentsForPremiumsForCappedCallConfirmationsDebtIssuance	145728000	USD
CY2019	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-266708000	USD
CY2019	w	Payments For Taxes On Net Share Settlement Of Equity Awards PaymentsForTaxesOnNetShareSettlementOfEquityAwards	2236000	USD
CY2018	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	290501000	USD
CY2018	w	Payments For Taxes On Net Share Settlement Of Equity Awards PaymentsForTaxesOnNetShareSettlementOfEquityAwards	1284000	USD
CY2017	w	Payments For Taxes On Net Share Settlement Of Equity Awards PaymentsForTaxesOnNetShareSettlementOfEquityAwards	1562000	USD
CY2019	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	791000	USD
CY2018	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	0	USD
CY2017	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	0	USD
CY2019	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	113000	USD
CY2018	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	138000	USD
CY2017	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	244000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	786504000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	467463000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	374971000	USD
CY2019	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-1557000	USD
CY2018	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-1536000	USD
CY2017	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	850000	USD
CY2017	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	279120000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	849461000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	558960000	USD
CY2016Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	279840000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	582753000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	849461000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	558960000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	7763000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	1554000	USD
CY2017	us-gaap	Interest Paid Net InterestPaidNet	0	USD
CY2019	w	Interest Paid Finance Lease Excluding Capitalized Interest Operating Activities InterestPaidFinanceLeaseExcludingCapitalizedInterestOperatingActivities	0	USD
CY2018	w	Interest Paid Finance Lease Excluding Capitalized Interest Operating Activities InterestPaidFinanceLeaseExcludingCapitalizedInterestOperatingActivities	9058000	USD
CY2017	w	Interest Paid Finance Lease Excluding Capitalized Interest Operating Activities InterestPaidFinanceLeaseExcludingCapitalizedInterestOperatingActivities	0	USD
CY2019	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	41181000	USD
CY2018	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	15383000	USD
CY2017	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	8533000	USD
CY2019	w	Construction Costs Capitalized Under Finance Lease Obligation ConstructionCostsCapitalizedUnderFinanceLeaseObligation	0	USD
CY2018	w	Construction Costs Capitalized Under Finance Lease Obligation ConstructionCostsCapitalizedUnderFinanceLeaseObligation	125796000	USD
CY2017	w	Construction Costs Capitalized Under Finance Lease Obligation ConstructionCostsCapitalizedUnderFinanceLeaseObligation	47276000	USD
CY2019Q1	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	524082000	USD
CY2019	w	Minimum Number Of Products MinimumNumberOfProducts	18000000000000	product
CY2019	w	Minimum Number Of Suppliers MinimumNumberOfSuppliers	12000	supplier
CY2019	us-gaap	Use Of Estimates UseOfEstimates	<div style="line-height:120%;padding-bottom:10px;padding-top:10px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-style:italic;">Use of Estimates</span></div><div style="line-height:120%;padding-bottom:10px;padding-top:10px;text-indent:32px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, and disclosure of contingent assets and liabilities, at the date of the </span><span style="font-family:inherit;font-size:10pt;">Consolidated Financial Statements</span><span style="font-family:inherit;font-size:10pt;">, and the reported amounts of revenue and expenses during the reported period. Actual results could differ from those estimates.</span></div>
CY2019	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div style="line-height:120%;padding-bottom:10px;padding-top:10px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-style:italic;">Concentrations of Credit Risk</span></div><div style="line-height:120%;padding-bottom:10px;padding-top:10px;text-indent:32px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Financial instruments that subject the Company to credit risk consist of cash and cash equivalents, short- and long-term investments, and accounts receivable. The risk with respect to cash and cash equivalents is minimized by the Company's policy to maintain these balances with major financial institutions of high-credit quality. At times, cash balances may exceed federally insured limits; however, to date, the Company has not incurred any losses on these investments. As of </span><span style="font-family:inherit;font-size:10pt;">December 31, 2019</span><span style="font-family:inherit;font-size:10pt;"> and </span><span style="font-family:inherit;font-size:10pt;">2018</span><span style="font-family:inherit;font-size:10pt;">, the Company had </span><span style="font-family:inherit;font-size:10pt;"><span>$48.2 million</span></span><span style="font-family:inherit;font-size:10pt;"> and </span><span style="font-family:inherit;font-size:10pt;"><span>$129.5 million</span></span><span style="font-family:inherit;font-size:10pt;">, respectively, in banks located outside the U.S.</span></div><div style="line-height:120%;padding-bottom:10px;padding-top:10px;text-indent:32px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">The risk with respect to short- and long-term investments is minimized by the Company's policy of investing in financial instruments issued by highly-rated financial institutions. The risk with respect to accounts receivable is managed by the Company through its policy of monitoring the creditworthiness of its customers to which it grants credit terms in the normal course of business.</span></div>
CY2019Q4	w	Cash Cash Equivalents And Short Term Investments Held In Accounts Of Foreign Financial Institutions CashCashEquivalentsAndShortTermInvestmentsHeldInAccountsOfForeignFinancialInstitutions	48200000	USD
CY2018Q4	w	Cash Cash Equivalents And Short Term Investments Held In Accounts Of Foreign Financial Institutions CashCashEquivalentsAndShortTermInvestmentsHeldInAccountsOfForeignFinancialInstitutions	129500000	USD
CY2019Q4	us-gaap	Other Inventory In Transit OtherInventoryInTransit	104900000	USD
CY2018Q4	us-gaap	Other Inventory In Transit OtherInventoryInTransit	83700000	USD
CY2019	us-gaap	Property Plant And Equipment Impairment PropertyPlantAndEquipmentImpairment	<div style="line-height:120%;padding-bottom:10px;padding-top:10px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-style:italic;">Property and Equipment</span></div><div style="line-height:120%;padding-bottom:10px;padding-top:10px;text-indent:32px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Property and equipment are stated at cost, net of </span><span style="font-family:inherit;font-size:10pt;">depreciation and amortization</span><span style="font-family:inherit;font-size:10pt;">. Expenditures for maintenance and repairs are charged to expense as incurred, whereas betterments are capitalized as additions to property and equipment. </span><span style="font-size:10pt;">Depreciation and amortization</span><span style="font-family:inherit;font-size:10pt;"> on property and equipment is calculated on the straight-line method over the estimated useful lives of the assets as follows:</span><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;width:95.40229885057471%;border-collapse:collapse;text-align:left;"><tr><td colspan="3"/></tr><tr><td style="width:49%;"/><td style="width:1%;"/><td style="width:50%;"/></tr><tr><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><span style="font-family:inherit;font-size:9pt;font-weight:bold;">Class</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><span style="font-family:inherit;font-size:9pt;font-weight:bold;"> </span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><span style="font-family:inherit;font-size:9pt;font-weight:bold;">Range of Life</span></div><div style="text-align:center;font-size:9pt;"><span style="font-family:inherit;font-size:9pt;font-weight:bold;">(In Years)</span></div></td></tr><tr><td style="vertical-align:top;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Furniture and computer equipment</span></div></td><td style="vertical-align:top;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:top;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">3 to 7</span></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Site and software development costs</span></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span>2</span></span></div></td></tr><tr><td style="vertical-align:top;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Leasehold improvements</span></div></td><td style="vertical-align:top;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">The lesser of useful life or lease term</span></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Buildings (leased - Note 6)</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span>30</span></span></div></td></tr></table></div><span style="font-family:inherit;font-size:10pt;"><br/></span></div>
CY2019	us-gaap	Capitalized Computer Software Amortization1 CapitalizedComputerSoftwareAmortization1	81600000	USD
CY2018	us-gaap	Capitalized Computer Software Amortization1 CapitalizedComputerSoftwareAmortization1	51300000	USD
CY2017	us-gaap	Capitalized Computer Software Amortization1 CapitalizedComputerSoftwareAmortization1	34500000	USD
CY2019	w	Impairment Of Long Lived Assets Held For Use And Intangible Assets Excluding Goodwill ImpairmentOfLongLivedAssetsHeldForUseAndIntangibleAssetsExcludingGoodwill	0	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	606977000	USD
CY2019Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	379268000	USD
CY2018Q4	us-gaap	Capital Lease Obligations Noncurrent CapitalLeaseObligationsNoncurrent	183056000	USD
CY2018Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	18826000	USD
CY2019Q1	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	12012000	USD
CY2018Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	160388000	USD
CY2019Q1	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	4392000	USD
CY2018Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	127995000	USD
CY2019Q1	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	118371000	USD
CY2019Q1	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	0	USD
CY2019Q1	us-gaap	Operating Lease Liability OperatingLeaseLiability	636385000	USD
CY2018Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-1082689000	USD
CY2019Q1	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-1080839000	USD
CY2019Q4	us-gaap	Contract With Customer Refund Liability ContractWithCustomerRefundLiability	38000000.0	USD
CY2018Q4	us-gaap	Contract With Customer Refund Liability ContractWithCustomerRefundLiability	35700000	USD
CY2019Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	112000	USD
CY2019	us-gaap	Advertising Expense AdvertisingExpense	1100000000	USD
CY2018	us-gaap	Advertising Expense AdvertisingExpense	774200000	USD
CY2017	us-gaap	Advertising Expense AdvertisingExpense	550000000.0	USD
CY2019Q4	us-gaap	Prepaid Advertising PrepaidAdvertising	3800000	USD
CY2018Q4	us-gaap	Prepaid Advertising PrepaidAdvertising	700000	USD
CY2019	w	Merchant Processing Fees MerchantProcessingFees	179700000	USD
CY2018	w	Merchant Processing Fees MerchantProcessingFees	133400000	USD
CY2017	w	Merchant Processing Fees MerchantProcessingFees	88700000	USD
CY2019Q4	w	Class Of Common Stock Number ClassOfCommonStockNumber	2	common_stock_class
CY2019Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	559900000	USD
CY2018Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	120800000	USD
CY2019Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	559910000	USD
CY2019Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	80000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	559942000	USD
CY2018Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	121005000	USD
CY2018Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	201000	USD
CY2018Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	120804000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	582753000	USD
CY2019Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	1147771000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	849461000	USD
CY2018Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	975265000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	18400000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	500000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	800000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	900000	USD
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1100000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	400000	USD
CY2018Q4	us-gaap	Goodwill Goodwill	2100000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	1080389000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	897141000	USD
CY2019	us-gaap	Operating Lease Expense OperatingLeaseExpense	122000000.0	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	301053000	USD
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	455845000	USD
CY2018Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	290164000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	624544000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	606977000	USD
CY2019	us-gaap	Depreciation And Amortization DepreciationAndAmortization	191600000	USD
CY2018	us-gaap	Depreciation And Amortization DepreciationAndAmortization	122600000	USD
CY2017	us-gaap	Depreciation And Amortization DepreciationAndAmortization	85900000	USD
CY2018	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	66700000	USD
CY2017	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	48400000	USD
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	109163000	USD
CY2019Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P10Y
CY2019Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.067
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	143398000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	150025000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	141866000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	137276000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	134724000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	526671000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	1233960000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	320254000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	913706000	USD
CY2019Q4	us-gaap	Purchase Obligation Due In Fourth Year PurchaseObligationDueInFourthYear	2047000	USD
CY2019Q4	us-gaap	Accrued Advertising Current AccruedAdvertisingCurrent	71597000	USD
CY2018Q4	us-gaap	Accrued Advertising Current AccruedAdvertisingCurrent	67259000	USD
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	91104000	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	822602000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	913706000	USD
CY2019	w	Lessee Operating Lease Lease Not Yet Commenced Rent Expense LesseeOperatingLeaseLeaseNotYetCommencedRentExpense	342300000	USD
CY2019Q4	us-gaap	Other Deferred Costs Gross OtherDeferredCostsGross	104947000	USD
CY2018Q4	us-gaap	Other Deferred Costs Gross OtherDeferredCostsGross	83652000	USD
CY2019Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	46177000	USD
CY2018Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	31003000	USD
CY2019Q4	w	Supplier Receivable SupplierReceivable	28245000	USD
CY2018Q4	w	Supplier Receivable SupplierReceivable	31842000	USD
CY2019Q4	w	Supplier Credits Receivable SupplierCreditsReceivable	20083000	USD
CY2018Q4	w	Supplier Credits Receivable SupplierCreditsReceivable	17667000	USD
CY2019Q4	w	Other Prepaid Expenseand Other Asset Current OtherPrepaidExpenseandOtherAssetCurrent	29269000	USD
CY2018Q4	w	Other Prepaid Expenseand Other Asset Current OtherPrepaidExpenseandOtherAssetCurrent	31266000	USD
CY2019Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	228721000	USD
CY2018Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	195430000	USD
CY2019Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	141922000	USD
CY2018Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	91914000	USD
CY2019Q4	us-gaap	Purchase Obligation Due In Fifth Year PurchaseObligationDueInFifthYear	1195000	USD
CY2019Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	236863000	USD
CY2019Q4	us-gaap	Purchase Obligation Due After Fifth Year PurchaseObligationDueAfterFifthYear	0	USD
CY2019Q4	us-gaap	Purchase Obligation PurchaseObligation	65860000	USD
CY2019Q1	w	Number Of Officers Of Company NumberOfOfficersOfCompany	3	officer
CY2019Q4	w	Accrued Credit Card Current AccruedCreditCardCurrent	13943000	USD
CY2018Q4	w	Accrued Credit Card Current AccruedCreditCardCurrent	16740000	USD
CY2019Q4	w	Accrued Property Plant And Equipment Current AccruedPropertyPlantAndEquipmentCurrent	18348000	USD
CY2018Q4	w	Accrued Property Plant And Equipment Current AccruedPropertyPlantAndEquipmentCurrent	13955000	USD
CY2019Q4	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	4018000	USD
CY2018Q4	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	1703000	USD
CY2019Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	49090000	USD
CY2018Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	21426000	USD
CY2019Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	298918000	USD
CY2018Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	212997000	USD
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	91104000	USD
CY2019Q4	us-gaap	Sales And Excise Tax Payable Current And Noncurrent SalesAndExciseTaxPayableCurrentAndNoncurrent	62173000	USD
CY2018Q4	us-gaap	Sales And Excise Tax Payable Current And Noncurrent SalesAndExciseTaxPayableCurrentAndNoncurrent	49989000	USD
CY2019Q4	w	Sales Return Reserve SalesReturnReserve	38042000	USD
CY2018Q4	w	Sales Return Reserve SalesReturnReserve	35707000	USD
CY2019Q4	us-gaap	Other Sundry Liabilities Current OtherSundryLiabilitiesCurrent	45544000	USD
CY2018Q4	us-gaap	Other Sundry Liabilities Current OtherSundryLiabilitiesCurrent	42299000	USD
CY2018Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	127995000	USD
CY2019Q4	w	Construction Costs Capitalized Under Finance Lease Obligations ConstructionCostsCapitalizedUnderFinanceLeaseObligations	0	USD
CY2018Q4	w	Construction Costs Capitalized Under Finance Lease Obligations ConstructionCostsCapitalizedUnderFinanceLeaseObligations	60089000	USD
CY2019Q4	us-gaap	Deferred Rent Credit Noncurrent DeferredRentCreditNoncurrent	0	USD
CY2018Q4	us-gaap	Deferred Rent Credit Noncurrent DeferredRentCreditNoncurrent	99746000	USD
CY2019Q4	w	Other Liabilities Other Noncurrent OtherLiabilitiesOtherNoncurrent	6940000	USD
CY2018Q4	w	Other Liabilities Other Noncurrent OtherLiabilitiesOtherNoncurrent	553000	USD
CY2019Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	6940000	USD
CY2018Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	160388000	USD
CY2019Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	46700000	USD
CY2018Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	26800000	USD
CY2019Q4	us-gaap	Purchase Obligation Due In Next Twelve Months PurchaseObligationDueInNextTwelveMonths	21206000	USD
CY2019Q4	us-gaap	Purchase Obligation Due In Second Year PurchaseObligationDueInSecondYear	25759000	USD
CY2019Q4	us-gaap	Purchase Obligation Due In Third Year PurchaseObligationDueInThirdYear	15653000	USD
CY2019Q1	us-gaap	Loss Contingency Number Of Plaintiffs LossContingencyNumberOfPlaintiffs	2	plaintiff
CY2019	w	Defined Contribution Plan Eligibility Criteria Minimum Age Of Full Time Employees DefinedContributionPlanEligibilityCriteriaMinimumAgeOfFullTimeEmployees	P21Y
CY2019	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	27900000	USD
CY2018	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	18200000	USD
CY2017	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	9000000.0	USD
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	200	shares
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	3.42
CY2019Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2019Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2019Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	9127057000	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	6779174000	USD
CY2017	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	4720895000	USD
CY2019	w	Adjusted Earningsbefore Interest Taxes Depreciationand Amortization AdjustedEarningsbeforeInterestTaxesDepreciationandAmortization	-496544000	USD
CY2018	w	Adjusted Earningsbefore Interest Taxes Depreciationand Amortization AdjustedEarningsbeforeInterestTaxesDepreciationandAmortization	-214986000	USD
CY2017	w	Adjusted Earningsbefore Interest Taxes Depreciationand Amortization AdjustedEarningsbeforeInterestTaxesDepreciationandAmortization	-67033000	USD
CY2019	w	Adjustmentsto Reconcile Total Reportable Segments Adjusted Ebitd Ato Consolidated Netloss AdjustmentstoReconcileTotalReportableSegmentsAdjustedEBITDAtoConsolidatedNetloss	488040000	USD
CY2018	w	Adjustmentsto Reconcile Total Reportable Segments Adjusted Ebitd Ato Consolidated Netloss AdjustmentstoReconcileTotalReportableSegmentsAdjustedEBITDAtoConsolidatedNetloss	289094000	USD
CY2017	w	Adjustmentsto Reconcile Total Reportable Segments Adjusted Ebitd Ato Consolidated Netloss AdjustmentstoReconcileTotalReportableSegmentsAdjustedEBITDAtoConsolidatedNetloss	177581000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-984584000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	-504080000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	-244614000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	192419000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	123542000	USD
CY2017	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	87020000	USD
CY2019	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	240978000	USD
CY2018	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	136415000	USD
CY2017	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	72626000	USD
CY2019	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	-54514000	USD
CY2018	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	-28560000	USD
CY2017	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	-9433000	USD
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	2881000	USD
CY2018	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-204000	USD
CY2017	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	758000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3010000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2037000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	486000	USD
CY2019	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	0	USD
CY2018	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	-1664000	USD
CY2017	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	8774000	USD
CY2019	w	Adjustmentsto Reconcile Total Reportable Segments Adjusted Ebitd Ato Consolidated Netloss AdjustmentstoReconcileTotalReportableSegmentsAdjustedEBITDAtoConsolidatedNetloss	488040000	USD
CY2018	w	Adjustmentsto Reconcile Total Reportable Segments Adjusted Ebitd Ato Consolidated Netloss AdjustmentstoReconcileTotalReportableSegmentsAdjustedEBITDAtoConsolidatedNetloss	289094000	USD
CY2017	w	Adjustmentsto Reconcile Total Reportable Segments Adjusted Ebitd Ato Consolidated Netloss AdjustmentstoReconcileTotalReportableSegmentsAdjustedEBITDAtoConsolidatedNetloss	177581000	USD
CY2018	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	1403000	USD
CY2019	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	2136000	USD
CY2019	w	Effective Income Tax Rate Reconciliation Other Changes In Deferred Taxes Amount EffectiveIncomeTaxRateReconciliationOtherChangesInDeferredTaxesAmount	0	USD
CY2018	w	Effective Income Tax Rate Reconciliation Other Changes In Deferred Taxes Amount EffectiveIncomeTaxRateReconciliationOtherChangesInDeferredTaxesAmount	9236000	USD
CY2019	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	0	USD
CY2017	w	Effective Income Tax Rate Reconciliation Other Changes In Deferred Taxes Amount EffectiveIncomeTaxRateReconciliationOtherChangesInDeferredTaxesAmount	0	USD
CY2019	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	6163000	USD
CY2019Q4	us-gaap	Noncurrent Assets NoncurrentAssets	1387944000	USD
CY2018Q4	us-gaap	Noncurrent Assets NoncurrentAssets	606977000	USD
CY2019Q4	us-gaap	Assets Assets	2953048000	USD
CY2018Q4	us-gaap	Assets Assets	1890850000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	0	USD
CY2019	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	0	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	874000	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	0	USD
CY2019	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	874000	USD
CY2019	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	2136000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	3010000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	0	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3010000	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-86000	USD
CY2018	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	-86000	USD
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	744000	USD
CY2018	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-24000	USD
CY2018	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	720000	USD
CY2018	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	78000	USD
CY2018	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	1325000	USD
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	822000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	1215000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2037000	USD
CY2017	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-31000	USD
CY2017	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	-31000	USD
CY2017	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	540000	USD
CY2017	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	8000	USD
CY2017	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	548000	USD
CY2017	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	942000	USD
CY2017	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-973000	USD
CY2017	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	-31000	USD
CY2017	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	1482000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-996000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	486000	USD
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-206131000	USD
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-105429000	USD
CY2017	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-85445000	USD
CY2019	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-40136000	USD
CY2018	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-22584000	USD
CY2017	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-11432000	USD
CY2019	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	24346000	USD
CY2018	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	14976000	USD
CY2017	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	23179000	USD
CY2019	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	6604000	USD
CY2018	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	3267000	USD
CY2017	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	1080000	USD
CY2019	w	Effective Income Tax Rate Reconciliation Nondeductible Expense Sharebased Compensation Cost Other Amount EffectiveIncomeTaxRateReconciliationNondeductibleExpenseSharebasedCompensationCostOtherAmount	-28915000	USD
CY2018	w	Effective Income Tax Rate Reconciliation Nondeductible Expense Sharebased Compensation Cost Other Amount EffectiveIncomeTaxRateReconciliationNondeductibleExpenseSharebasedCompensationCostOtherAmount	-29003000	USD
CY2017	w	Effective Income Tax Rate Reconciliation Nondeductible Expense Sharebased Compensation Cost Other Amount EffectiveIncomeTaxRateReconciliationNondeductibleExpenseSharebasedCompensationCostOtherAmount	-24168000	USD
CY2019	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	236863000	USD
CY2018	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	119370000	USD
CY2017	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	24209000	USD
CY2019	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	-2293000	USD
CY2018	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	197000	USD
CY2017	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	71919000	USD
CY2019	w	Effective Income Tax Rate Reconciliation Nondeductible Expense162m Officer Compensation Amount EffectiveIncomeTaxRateReconciliationNondeductibleExpense162mOfficerCompensationAmount	6509000	USD
CY2018	w	Effective Income Tax Rate Reconciliation Nondeductible Expense162m Officer Compensation Amount EffectiveIncomeTaxRateReconciliationNondeductibleExpense162mOfficerCompensationAmount	5283000	USD
CY2017	w	Effective Income Tax Rate Reconciliation Nondeductible Expense162m Officer Compensation Amount EffectiveIncomeTaxRateReconciliationNondeductibleExpense162mOfficerCompensationAmount	0	USD
CY2019Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	778648000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	405399000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	412898000	USD
CY2018	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	6724000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	247454000	USD
CY2017	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	1144000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3010000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2037000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	486000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3000000.0	USD
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-699347000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-327356000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-143800000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-282227000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-174687000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-100328000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-981574000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-502043000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-244128000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	5909000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	2400000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	871000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	495000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	470199000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	262481000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	14929000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	9733000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Goodwill And Intangible Assets DeferredTaxAssetsGoodwillAndIntangibleAssets	10675000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Goodwill And Intangible Assets DeferredTaxAssetsGoodwillAndIntangibleAssets	12526000	USD
CY2019Q4	w	Deferred Tax Assets Accrued Payroll DeferredTaxAssetsAccruedPayroll	21395000	USD
CY2018Q4	w	Deferred Tax Assets Accrued Payroll DeferredTaxAssetsAccruedPayroll	13900000	USD
CY2019Q4	w	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Expenses And Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedExpensesAndReserves	14539000	USD
CY2018Q4	w	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Expenses And Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedExpensesAndReserves	12339000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Charitable Contribution Carryforwards DeferredTaxAssetsCharitableContributionCarryforwards	872000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Charitable Contribution Carryforwards DeferredTaxAssetsCharitableContributionCarryforwards	657000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Deferred Rent DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsDeferredRent	239259000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Deferred Rent DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsDeferredRent	90868000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Deferred Financing Costs DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts	66166000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	108000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	0	USD
CY2019Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	365750000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	157945000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	5930000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	3030000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Capitalized Software DeferredTaxLiabilitiesDeferredExpenseCapitalizedSoftware	27354000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Capitalized Software DeferredTaxLiabilitiesDeferredExpenseCapitalizedSoftware	15427000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	14191000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	73189000	USD
CY2019Q4	w	Deferred Tax Liabilities Rightof Use Asset DeferredTaxLiabilitiesRightofUseAsset	197680000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Goodwill DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill	40000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Goodwill DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill	133000	USD
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CY2019Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	365750000	USD
CY2018Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	157945000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	0	USD
CY2018Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	0	USD
CY2019Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	0	USD
CY2018Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	0	USD
CY2019	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	165400000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Domestic DeferredTaxAssetsOperatingLossCarryforwardsDomestic	1400000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards State And Local DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal	1300000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Subject To Expiration DeferredTaxAssetsOperatingLossCarryforwardsSubjectToExpiration	427400000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Not Subject To Expiration DeferredTaxAssetsOperatingLossCarryforwardsNotSubjectToExpiration	1000000000.0	USD
CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Foreign DeferredTaxAssetsOperatingLossCarryforwardsForeign	686900000	USD
CY2019Q4	us-gaap	Undistributed Earnings Of Foreign Subsidiaries UndistributedEarningsOfForeignSubsidiaries	7300000	USD
CY2017Q3	w	Debt Instrument Number Of Initial Purchasers DebtInstrumentNumberOfInitialPurchasers	2	institution
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CY2019	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	92200000	shares
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CY2019	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-10.68
CY2018	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-5.63
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CY2019	w	Allocationof Undistributed Earnings Between Stock Classes Conversion Ratio AllocationofUndistributedEarningsBetweenStockClassesConversionRatio	1
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-984584000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	-504080000	USD

Files In Submission

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$W
Wayfair Inc. Stock $w

2019 Q1 Form 10-K Financial Statement

#000161670720000025 Filed on February 28, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$W Wayfair Inc. Stock $w

2019 Q1 Form 10-K Financial Statement

#000161670720000025 Filed on February 28, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$W
Wayfair Inc. Stock $w