$W
Wayfair Inc. Stock $w

$w Overview Financials Valuation SEC Filings Company Website

2019 Q4 Form 10-K Financial Statement

#000161670721000064 Filed on February 25, 2021

Income Statement

Concept	2019 Q4	2018	2017 Q4
Revenue	$2.534B	$6.779B	$1.439B
YoY Change	25.79%	43.6%	46.15%
Cost Of Revenue	$2.057B	$5.192B	$1.159B
YoY Change	28.01%	44.15%	48.12%
Gross Profit	$476.9M	$1.587B	$279.8M
YoY Change	17.06%	41.82%	38.51%
Gross Profit Margin	18.82%	23.41%	19.44%
Selling, General & Admin	$782.3M	$1.678B	$483.1M
YoY Change	55.65%	54.09%	96.62%
% of Gross Profit	164.04%	105.75%	172.66%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$58.20M	$123.5M	$24.40M
YoY Change	61.22%	41.97%	42.69%
% of Gross Profit	12.2%	7.79%	8.72%
Operating Expenses	$782.3M	$2.060B	$347.6M
YoY Change	45.22%	52.11%	41.47%
Operating Profit	-$305.4M	-$473.3M	-$67.80M
YoY Change	132.6%	101.01%	55.15%
Interest Expense	-$20.60M	-$28.56M	-$5.600M
YoY Change	100.0%	202.77%	5500.0%
% of Operating Profit
Other Income/Expense, Net	-$2.700M	-$204.0K	$400.0K
YoY Change	-6.9%	-126.91%
Pretax Income	-$328.7M	-$327.4M	-$73.00M
YoY Change	130.18%	127.65%	66.29%
Income Tax	$3.800M	$2.037M	-$72.10M
% Of Pretax Income
Net Earnings	-$330.2M	-$504.1M	-$72.80M
YoY Change	129.62%	106.07%	65.45%
Net Earnings / Revenue	-13.03%	-7.44%	-5.06%
Basic Earnings Per Share		-$5.63
Diluted Earnings Per Share	-$3.539M	-$5.63	-$828.2K
COMMON SHARES
Basic Shares Outstanding		89.47M shares
Diluted Shares Outstanding		89.47M shares

Balance Sheet

Concept	2019 Q4	2018	2017 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$987.0M	$963.7M	$620.0M
YoY Change	2.42%	55.44%	77.85%
Cash & Equivalents	$583.0M	$849.5M	$559.0M
Short-Term Investments	$404.3M	$114.3M	$61.00M
Other Short-Term Assets	$29.27M	$146.0M	$130.8M
YoY Change	-85.02%	11.62%	44.05%
Inventory	$61.69M	$46.20M	$28.04M
Prepaid Expenses	$46.18M
Receivables	$99.70M	$50.60M	$37.95M
Other Receivables	$0.00	$49.50M	$0.00
Total Short-Term Assets	$1.377B	$1.256B	$816.8M
YoY Change	9.65%	53.76%	71.21%
LONG-TERM ASSETS
Property, Plant & Equipment	$624.5M	$607.0M	$361.1M
YoY Change	2.89%	68.1%	50.88%
Goodwill	$400.0K		$1.900M
YoY Change	-80.95%		0.0%
Intangibles
YoY Change
Long-Term Investments	$155.7M	$6.500M	$21.60M
YoY Change	2295.38%	-69.91%	-30.32%
Other Assets	$32.28M	$18.80M	$10.78M
YoY Change	71.44%	74.07%	7.32%
Total Long-Term Assets	$1.576B	$635.0M	$396.6M
YoY Change	148.21%	60.11%	39.35%
TOTAL ASSETS
Total Short-Term Assets	$1.377B	$1.256B	$816.8M
Total Long-Term Assets	$1.576B	$635.0M	$396.6M
Total Assets	$2.953B	$1.891B	$1.213B
YoY Change	56.18%	55.83%	59.31%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$908.1M	$650.2M	$440.4M
YoY Change	39.67%	47.64%	16.04%
Accrued Expenses	$298.9M	$263.0M	$120.2M
YoY Change	40.34%	118.8%	77.34%
Deferred Revenue	$167.6M		$94.12M
YoY Change	13.23%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$1.612B	$1.139B	$739.8M
YoY Change	41.46%	53.99%	32.76%
LONG-TERM LIABILITIES
Long-Term Debt	$1.456B	$922.0M	$415.5M
YoY Change	57.94%	121.9%	1337.72%
Other Long-Term Liabilities	$6.940M	$160.4M	$106.5M
YoY Change	-95.67%	50.61%	10.72%
Total Long-Term Liabilities	$6.940M	$1.082B	$106.5M
YoY Change	-95.67%	107.36%	10.72%
TOTAL LIABILITIES
Total Short-Term Liabilities	$1.612B	$1.139B	$739.8M
Total Long-Term Liabilities	$6.940M	$1.082B	$106.5M
Total Liabilities	$3.897B	$2.222B	$1.262B
YoY Change	75.43%	76.08%	84.92%
SHAREHOLDERS EQUITY
Retained Earnings	-$2.065B		-$583.3M
YoY Change	90.77%		76.78%
Common Stock
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	-$944.0M	-$330.7M	-$48.33M
YoY Change
Total Liabilities & Shareholders Equity	$2.953B	$1.891B	$1.213B
YoY Change	56.18%	55.83%	59.31%

Cashflow Statement

Concept	2019 Q4	2018	2017 Q4
OPERATING ACTIVITIES
Net Income	-$330.2M	-$504.1M	-$72.80M
YoY Change	129.62%	106.07%	65.45%
Depreciation, Depletion And Amortization	$58.20M	$123.5M	$24.40M
YoY Change	61.22%	41.97%	42.69%
Cash From Operating Activities	-$36.30M	$84.86M	$36.80M
YoY Change	-185.21%	152.31%	-49.93%
INVESTING ACTIVITIES
Capital Expenditures	-$122.2M	$159.2M	-$35.50M
YoY Change	86.0%	58.49%	43.15%
Acquisitions
YoY Change
Other Investing Activities	-$553.5M	$398.0K	$3.600M
YoY Change	559.71%		-86.21%
Cash From Investing Activities	-$675.6M	-$260.3M	-$31.80M
YoY Change	351.6%	99.71%	-2546.15%
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	-700.0K	$467.5M	-200.0K
YoY Change	-100.15%	24.67%	-92.31%
NET CHANGE
Cash From Operating Activities	-36.30M	$84.86M	36.80M
Cash From Investing Activities	-675.6M	-$260.3M	-31.80M
Cash From Financing Activities	-700.0K	$467.5M	-200.0K
Net Change In Cash	-712.6M	$290.5M	4.800M
YoY Change	-297.12%	4.4%	-93.35%
FREE CASH FLOW
Cash From Operating Activities	-$36.30M	$84.86M	$36.80M
Capital Expenditures	-$122.2M	$159.2M	-$35.50M
Free Cash Flow	$85.90M	-$74.34M	$72.30M
YoY Change	-20.68%	11.27%	-26.45%

Facts In Submission

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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
CY2020	us-gaap	Net Income Loss NetIncomeLoss	184996000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-3102000	USD
CY2020	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	439000	USD
CY2020	w	Stock Issued During Period Value Vesting Of Restricted Stock Units StockIssuedDuringPeriodValueVestingOfRestrictedStockUnits	3000	USD
CY2020	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	293488000	USD
CY2020	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	380237000	USD
CY2020	us-gaap	Stock Issued During Period Value Conversion Of Convertible Securities StockIssuedDuringPeriodValueConversionOfConvertibleSecurities	426166000	USD
CY2020	us-gaap	Adjustments To Additional Paid In Capital Equity Component Of Convertible Debt Subsequent Adjustments AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebtSubsequentAdjustments	842337000	USD
CY2020	us-gaap	Adjustments To Additional Paid In Capital Equity Component Of Convertible Debt AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt	78418000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	-1191897000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	184996000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-984584000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	-504080000	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	285711000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	192419000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	123542000	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	276208000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	227451000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	127564000	USD
CY2020	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	134288000	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
CY2020	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-12638000	USD
CY2019	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	1691000	USD
CY2018	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	56000	USD
CY2020	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	14726000	USD
CY2019	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	49187000	USD
CY2018	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	12792000	USD
CY2020	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-9947000	USD
CY2019	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	15631000	USD
CY2018	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	18319000	USD
CY2020	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	61259000	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
CY2020	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	532000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	1329000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	8157000	USD
CY2020	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	531526000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	393013000	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	385647000	USD
CY2020	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	57934000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	13200000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	34122000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1416731000	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
CY2020	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	481670000	USD
CY2019	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	553858000	USD
CY2018	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	99002000	USD
CY2020	us-gaap	Proceeds From Sale Maturity And Collection Of Shortterm Investments ProceedsFromSaleMaturityAndCollectionOfShorttermInvestments	580153000	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
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	186040000	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
CY2020	w	Payments To Site And Software Development Costs PaymentsToSiteAndSoftwareDevelopmentCosts	148394000	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
CY2020	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	124000	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
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-236075000	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
CY2020	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	200000000	USD
CY2019	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	0	USD
CY2018	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	0	USD
CY2020	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	200000000	USD
CY2019	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	0	USD
CY2018	us-gaap	Repayments Of Lines Of Credit RepaymentsOfLinesOfCredit	0	USD
CY2020	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt	2027758000	USD
CY2019	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt	935146000	USD
CY2018	us-gaap	Proceeds From Convertible Debt ProceedsFromConvertibleDebt	562047000	USD
CY2020	w	Payments For Premiums For Capped Call Confirmations Debt Issuance PaymentsForPremiumsForCappedCallConfirmationsDebtIssuance	255024000	USD
CY2019	w	Payments For Premiums For Capped Call Confirmations Debt Issuance PaymentsForPremiumsForCappedCallConfirmationsDebtIssuance	145728000	USD
CY2018	w	Payments For Premiums For Capped Call Confirmations Debt Issuance PaymentsForPremiumsForCappedCallConfirmationsDebtIssuance	93438000	USD
CY2018	w	Interest Paid Finance Lease Excluding Capitalized Interest Operating Activities InterestPaidFinanceLeaseExcludingCapitalizedInterestOperatingActivities	9058000	USD
CY2020	w	Construction Costs Capitalized Under Finance Lease Obligation ConstructionCostsCapitalizedUnderFinanceLeaseObligation	0	USD
CY2020	us-gaap	Repayments Of Convertible Debt RepaymentsOfConvertibleDebt	1040349000	USD
CY2019	us-gaap	Repayments Of Convertible Debt RepaymentsOfConvertibleDebt	0	USD
CY2018	us-gaap	Repayments Of Convertible Debt RepaymentsOfConvertibleDebt	0	USD
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	380237000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2020	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	440000	USD
CY2019	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-2914000	USD
CY2018	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-1146000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	352588000	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
CY2020	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	13443000	USD
CY2019	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-1557000	USD
CY2018	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-1536000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	1546687000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-266708000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	290501000	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
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2129440000	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
CY2020	us-gaap	Interest Paid Net InterestPaidNet	17407000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	7763000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	1554000	USD
CY2020	us-gaap	Conversion Of Stock Amount Issued1 ConversionOfStockAmountIssued1	306889000	USD
CY2019	us-gaap	Conversion Of Stock Amount Issued1 ConversionOfStockAmountIssued1	0	USD
CY2018	us-gaap	Conversion Of Stock Amount Issued1 ConversionOfStockAmountIssued1	0	USD
CY2020	w	Interest Paid Finance Lease Excluding Capitalized Interest Operating Activities InterestPaidFinanceLeaseExcludingCapitalizedInterestOperatingActivities	0	USD
CY2019	w	Interest Paid Finance Lease Excluding Capitalized Interest Operating Activities InterestPaidFinanceLeaseExcludingCapitalizedInterestOperatingActivities	0	USD
CY2020	w	Minimum Number Of Suppliers MinimumNumberOfSuppliers	16000	supplier
CY2019	w	Construction Costs Capitalized Under Finance Lease Obligation ConstructionCostsCapitalizedUnderFinanceLeaseObligation	0	USD
CY2018	w	Construction Costs Capitalized Under Finance Lease Obligation ConstructionCostsCapitalizedUnderFinanceLeaseObligation	125796000	USD
CY2020	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	29915000	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
CY2020	w	Minimum Number Of Products MinimumNumberOfProducts	22000000	product
CY2020	us-gaap	Use Of Estimates UseOfEstimates	<div style="margin-bottom:8pt;margin-top:8pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Use of Estimates</span></div><div style="text-indent:22.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:115%">We prepared the consolidated financial statements in conformity with accounting principles generally accepted in the United States of America ("GAAP"). Any reference in these notes to applicable guidance is meant to refer to the authoritative GAAP as found in the Accounting Standards Codification ("ASC") and Accounting Standards Update ("ASU") of the Financial Accounting Standards Board ("FASB"). 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, as well as the disclosure of contingent assets and liabilities, at the date of and during the reported period of the consolidated financial statements. Actual results could differ from those estimates. Certain prior period amounts have been reclassified to conform to the current period presentation.</span></div>
CY2020	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Not Previously Recorded DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotPreviouslyRecorded	0	USD
CY2019	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Not Previously Recorded DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotPreviouslyRecorded	0	USD
CY2018	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Not Previously Recorded DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotPreviouslyRecorded	0	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	0	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	0	USD
CY2020	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div style="margin-bottom:8pt;margin-top:8pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Concentrations of Credit Risk</span></div><div style="margin-bottom:8pt;margin-top:8pt;text-indent:22.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Financial instruments that subject Wayfair to credit risk consist of cash and cash equivalents, short- and long-term investments and accounts receivable. The risk for cash and cash equivalents is minimized by Wayfair'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, Wayfair has not incurred any losses on these investments. As of December 31, 2020 and 2019, Wayfair had $281.0 million and $48.2 million in banks located outside of the U.S. The risk for short- and long-term investments is minimized by Wayfair's policy of investing in financial instruments issued by highly-rated financial institutions.</span></div>
CY2020Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	0	USD
CY2020Q4	w	Cash Cash Equivalents And Short Term Investments Held In Accounts Of Foreign Financial Institutions CashCashEquivalentsAndShortTermInvestmentsHeldInAccountsOfForeignFinancialInstitutions	281000000.0	USD
CY2019Q4	w	Cash Cash Equivalents And Short Term Investments Held In Accounts Of Foreign Financial Institutions CashCashEquivalentsAndShortTermInvestmentsHeldInAccountsOfForeignFinancialInstitutions	48200000	USD
CY2020	w	Contract With Customer Revenue Recognized Percent Collected ContractWithCustomerRevenueRecognizedPercentCollected	0.99
CY2020	us-gaap	Property Plant And Equipment Impairment PropertyPlantAndEquipmentImpairment	<div style="margin-bottom:8pt;margin-top:8pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Property and Equipment</span></div><div style="margin-bottom:8pt;margin-top:8pt;text-indent:22.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Property and equipment are stated at cost, net of depreciation. Expenditures for maintenance and repairs are charged to expense as incurred, whereas betterments are capitalized as additions to property and equipment. Depreciation on property and equipment is calculated on the straight-line method over the estimated useful lives of the assets as follows:</span></div><div style="margin-bottom:6pt;margin-top:8pt"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:95.258%"><tr><td style="width:1.0%"/><td style="width:48.522%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.554%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:48.524%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:700;line-height:100%">Class</span></td><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:700;line-height:100%">Range of Life<br/>(In Years)</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Furniture and computer equipment</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:top"><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">3 to 7</span></div></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Site and software development costs</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Leasehold improvements</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">The lesser of useful life or lease term</span></td></tr></table></div>
CY2019Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	0	USD
CY2020	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	USD
CY2020Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	17263000	USD
CY2019Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	18809000	USD
CY2020	w	Merchant Processing Fees MerchantProcessingFees	267700000	USD
CY2019	w	Merchant Processing Fees MerchantProcessingFees	179700000	USD
CY2018	w	Merchant Processing Fees MerchantProcessingFees	133400000	USD
CY2020Q4	w	Class Of Common Stock Number ClassOfCommonStockNumber	2	class
CY2020Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	110300000	USD
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	21400000	USD
CY2019Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	99700000	USD
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	22800000	USD
CY2020Q4	us-gaap	Other Deferred Costs Gross OtherDeferredCostsGross	156240000	USD
CY2019Q4	us-gaap	Other Deferred Costs Gross OtherDeferredCostsGross	104947000	USD
CY2020Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	50205000	USD
CY2019Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	46177000	USD
CY2020Q4	w	Supplier Receivables And Credits Receivable SupplierReceivablesAndCreditsReceivable	62165000	USD
CY2019Q4	w	Supplier Receivables And Credits Receivable SupplierReceivablesAndCreditsReceivable	48328000	USD
CY2020Q4	us-gaap	Other Assets Current OtherAssetsCurrent	23603000	USD
CY2019Q4	us-gaap	Other Assets Current OtherAssetsCurrent	29269000	USD
CY2020Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	292213000	USD
CY2019Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	228721000	USD
CY2019Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	141922000	USD
CY2020Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2020Q4	us-gaap	Other Assets Miscellaneous Noncurrent OtherAssetsMiscellaneousNoncurrent	14183000	USD
CY2019Q4	us-gaap	Other Assets Miscellaneous Noncurrent OtherAssetsMiscellaneousNoncurrent	13467000	USD
CY2020Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	31446000	USD
CY2019Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	32276000	USD
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1500000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	800000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	900000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	400000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	400000	USD
CY2018	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	0	USD
CY2020	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	0	USD
CY2019	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	0	USD
CY2020Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	155574000	USD
CY2020Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	97286000	USD
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	91104000	USD
CY2020Q4	us-gaap	Accrued Advertising Current AccruedAdvertisingCurrent	90251000	USD
CY2019Q4	us-gaap	Accrued Advertising Current AccruedAdvertisingCurrent	71597000	USD
CY2020Q4	us-gaap	Sales And Excise Tax Payable Current And Noncurrent SalesAndExciseTaxPayableCurrentAndNoncurrent	104502000	USD
CY2019Q4	us-gaap	Sales And Excise Tax Payable Current And Noncurrent SalesAndExciseTaxPayableCurrentAndNoncurrent	62173000	USD
CY2020Q4	w	Sales Return Reserve SalesReturnReserve	72835000	USD
CY2019Q4	w	Sales Return Reserve SalesReturnReserve	38042000	USD
CY2020Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	195997000	USD
CY2019Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	130943000	USD
CY2020Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	1008970000	USD
CY2019Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	703422000	USD
CY2020	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	800000	USD
CY2019	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	0	USD
CY2018	us-gaap	Debt Securities Available For Sale Realized Gain Loss DebtSecuritiesAvailableForSaleRealizedGainLoss	0	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	20000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	5000	USD
CY2020Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	461698000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	461683000	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 Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	112000	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
CY2020Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	2129440000	USD
CY2020Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	2596338000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	582753000	USD
CY2019Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	1147771000	USD
CY2020Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2020	us-gaap	Operating Lease Expense OperatingLeaseExpense	158600000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	1387003000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	1080389000	USD
CY2020Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	702697000	USD
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	455845000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	684306000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	624544000	USD
CY2020	us-gaap	Depreciation And Amortization DepreciationAndAmortization	284200000	USD
CY2019	us-gaap	Depreciation And Amortization DepreciationAndAmortization	191600000	USD
CY2018	us-gaap	Depreciation And Amortization DepreciationAndAmortization	122600000	USD
CY2019	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	USD
CY2018	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	0	USD
CY2019	us-gaap	Operating Lease Expense OperatingLeaseExpense	122000000.0	USD
CY2018	us-gaap	Operating Lease Expense OperatingLeaseExpense	66700000	USD
CY2020	us-gaap	Sublease Income SubleaseIncome	11200000	USD
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	157267000	USD
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	109163000	USD
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	133814000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	301053000	USD
CY2020Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P8Y
CY2019Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P10Y
CY2020Q3	us-gaap	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	700000000	USD
CY2020Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.065
CY2019Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.067
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	149590000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	165624000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	160487000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	157219000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	150788000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	467014000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	1250722000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	283478000	USD
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	967244000	USD
CY2020Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	97286000	USD
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	869958000	USD
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	967244000	USD
CY2020	w	Lessee Operating Lease Lease Not Yet Commenced Rent Expense LesseeOperatingLeaseLeaseNotYetCommencedRentExpense	127900000	USD
CY2020Q4	us-gaap	Long Term Debt LongTermDebt	2659243000	USD
CY2019Q4	us-gaap	Long Term Debt LongTermDebt	1456195000	USD
CY2020Q4	us-gaap	Purchase Obligation Due In Next Twelve Months PurchaseObligationDueInNextTwelveMonths	97400000	USD
CY2020Q4	us-gaap	Purchase Obligation Due In Second Year PurchaseObligationDueInSecondYear	121200000	USD
CY2020Q4	us-gaap	Purchase Obligation Due In Third Year PurchaseObligationDueInThirdYear	114600000	USD
CY2020	w	Defined Contribution Plan Eligibility Criteria Minimum Age Of Full Time Employees DefinedContributionPlanEligibilityCriteriaMinimumAgeOfFullTimeEmployees	P21Y
CY2020	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	31700000	USD
CY2019	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	27900000	USD
CY2018	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	18200000	USD
CY2020Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2020Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2018Q4	us-gaap	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	200000000	USD
CY2020	w	Stock Repurchase Program Average Price Per Share StockRepurchaseProgramAveragePricePerShare	302.71
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	276208000	USD
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	227451000	USD
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	127564000	USD
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	7817000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	874000	USD
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	744000	USD
CY2020	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	2164000	USD
CY2019	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	2136000	USD
CY2018	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	78000	USD
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	9036000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	0	USD
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-86000	USD
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	1306000	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	0	USD
CY2018	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-24000	USD
CY2020	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	0	USD
CY2019	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	0	USD
CY2018	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	1325000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	20323000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3010000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2037000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	43116000	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
CY2020	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	18518000	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
CY2020	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	18591000	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
CY2020	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	7671000	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
CY2020	w	Effective Income Tax Rate Reconciliation Nondeductible Expense Sharebased Compensation Cost Other Amount EffectiveIncomeTaxRateReconciliationNondeductibleExpenseSharebasedCompensationCostOtherAmount	-51024000	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
CY2020	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-26982000	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
CY2020	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	-847000	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
CY2020	w	Effective Income Tax Rate Reconciliation Nondeductible Expense162m Officer Compensation Amount EffectiveIncomeTaxRateReconciliationNondeductibleExpense162mOfficerCompensationAmount	8103000	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
CY2020	w	Effective Income Tax Rate Reconciliation Other Changes In Deferred Taxes Amount EffectiveIncomeTaxRateReconciliationOtherChangesInDeferredTaxesAmount	0	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
CY2020	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	3177000	USD
CY2019	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	6163000	USD
CY2018	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	6724000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	20323000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3010000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2037000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	20300000	USD
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.0988
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-981574000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	399973000	USD
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
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-194654000	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
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	205319000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-502043000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	5507000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	5909000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	1048000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	871000	USD
CY2020Q4	w	Deferred Tax Assets Accrued Payroll DeferredTaxAssetsAccruedPayroll	36580000	USD
CY2019Q4	w	Deferred Tax Assets Accrued Payroll DeferredTaxAssetsAccruedPayroll	21395000	USD
CY2020Q4	w	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Expenses And Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedExpensesAndReserves	23633000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	1934000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	148000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	433543000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	470199000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	12720000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	14929000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Goodwill And Intangible Assets DeferredTaxAssetsGoodwillAndIntangibleAssets	9274000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Goodwill And Intangible Assets DeferredTaxAssetsGoodwillAndIntangibleAssets	10675000	USD
CY2019Q4	w	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Expenses And Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedExpensesAndReserves	14539000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Charitable Contribution Carryforwards DeferredTaxAssetsCharitableContributionCarryforwards	0	USD
CY2019Q4	us-gaap	Deferred Tax Assets Charitable Contribution Carryforwards DeferredTaxAssetsCharitableContributionCarryforwards	872000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Deferred Rent DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsDeferredRent	255381000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Deferred Rent DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsDeferredRent	239259000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	777686000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	778648000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	328116000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	412898000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	449570000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	365750000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	4889000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	5930000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Capitalized Software DeferredTaxLiabilitiesDeferredExpenseCapitalizedSoftware	35261000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Capitalized Software DeferredTaxLiabilitiesDeferredExpenseCapitalizedSoftware	27354000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	41543000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	14191000	USD
CY2020Q4	w	Deferred Tax Liabilities Rightof Use Asset DeferredTaxLiabilitiesRightofUseAsset	211727000	USD
CY2019Q4	w	Deferred Tax Liabilities Rightof Use Asset DeferredTaxLiabilitiesRightofUseAsset	197680000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Deferred Financing Costs DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts	167043000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Deferred Financing Costs DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts	120447000	USD
CY2020Q4	w	Deferred Tax Liabilities Adjustments DeferredTaxLiabilitiesAdjustments	8103000	USD
CY2019Q4	w	Deferred Tax Liabilities Adjustments DeferredTaxLiabilitiesAdjustments	0	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	470500000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	365750000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	20930000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	0	USD
CY2020	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	-84800000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Domestic DeferredTaxAssetsOperatingLossCarryforwardsDomestic	1200000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards State And Local DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal	1000000000.0	USD
CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Subject To Expiration DeferredTaxAssetsOperatingLossCarryforwardsSubjectToExpiration	150700000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Not Subject To Expiration DeferredTaxAssetsOperatingLossCarryforwardsNotSubjectToExpiration	1000000000.0	USD
CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Foreign DeferredTaxAssetsOperatingLossCarryforwardsForeign	949800000	USD
CY2020Q4	us-gaap	Undistributed Earnings Of Foreign Subsidiaries UndistributedEarningsOfForeignSubsidiaries	6000000.0	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	184996000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-984584000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	-504080000	USD
CY2020	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	0	USD
CY2018	us-gaap	Incremental Common Shares Attributable To Conversion Of Debt Securities IncrementalCommonSharesAttributableToConversionOfDebtSecurities	0	shares
CY2019	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	0	USD
CY2018	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	0	USD
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	184996000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-984584000	USD
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-504080000	USD
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	95825000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	92200000	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	89472000	shares
CY2020	us-gaap	Incremental Common Shares Attributable To Conversion Of Debt Securities IncrementalCommonSharesAttributableToConversionOfDebtSecurities	0	shares
CY2019	us-gaap	Incremental Common Shares Attributable To Conversion Of Debt Securities IncrementalCommonSharesAttributableToConversionOfDebtSecurities	0	shares
CY2020	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	3512000	shares
CY2019	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	0	shares
CY2018	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	0	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	99337000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	99337000	shares
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-10.68
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	92200000	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	89472000	shares
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.93
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.93
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-10.68
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-10.68
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-5.63
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-5.63
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.86
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.86
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-10.68
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-5.63
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-5.63
CY2020	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	20307000	shares
CY2019	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	23631000	shares
CY2018	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	17155000	shares
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	14145156000	USD
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
CY2020	w	Adjusted Earningsbefore Interest Taxes Depreciationand Amortization AdjustedEarningsbeforeInterestTaxesDepreciationandAmortization	946888000	USD
CY2019	w	Adjusted Earningsbefore Interest Taxes Depreciationand Amortization AdjustedEarningsbeforeInterestTaxesDepreciationandAmortization	-496544000	USD
CY2018	w	Adjusted Earningsbefore Interest Taxes Depreciationand Amortization AdjustedEarningsbeforeInterestTaxesDepreciationandAmortization	-214986000	USD
CY2020	w	Adjustmentsto Reconcile Total Reportable Segments Adjusted Ebitd Ato Consolidated Netloss AdjustmentstoReconcileTotalReportableSegmentsAdjustedEBITDAtoConsolidatedNetloss	761892000	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
CY2020	us-gaap	Net Income Loss NetIncomeLoss	184996000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-984584000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	-504080000	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	285711000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	192419000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	123542000	USD
CY2020	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	296872000	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
CY2020	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	-146397000	USD
CY2019	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	-54514000	USD
CY2018	us-gaap	Interest Income Expense Nonoperating Net InterestIncomeExpenseNonoperatingNet	-28560000	USD
CY2020	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-8633000	USD
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	2881000	USD
CY2018	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-204000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	20323000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3010000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2037000	USD
CY2020	w	Other Reconciling Items OtherReconcilingItems	3956000	USD
CY2019	w	Other Reconciling Items OtherReconcilingItems	0	USD
CY2018	w	Other Reconciling Items OtherReconcilingItems	-1664000	USD
CY2020	w	Adjustmentsto Reconcile Total Reportable Segments Adjusted Ebitd Ato Consolidated Netloss AdjustmentstoReconcileTotalReportableSegmentsAdjustedEBITDAtoConsolidatedNetloss	761892000	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
CY2020Q4	us-gaap	Noncurrent Assets NoncurrentAssets	1492681000	USD
CY2019Q4	us-gaap	Noncurrent Assets NoncurrentAssets	1387944000	USD
CY2020Q4	us-gaap	Assets Assets	4569929000	USD
CY2019Q4	us-gaap	Assets Assets	2953048000	USD

Files In Submission

Name	View Source	Status
0001616707-21-000064-index-headers.html	Edgar Link	pending
0001616707-21-000064-index.html	Edgar Link	pending
0001616707-21-000064.txt	Edgar Link	pending
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w-20201231_htm.xml	Edgar Link	completed
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$W
Wayfair Inc. Stock $w

2019 Q4 Form 10-K Financial Statement

#000161670721000064 Filed on February 25, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$W Wayfair Inc. Stock $w

2019 Q4 Form 10-K Financial Statement

#000161670721000064 Filed on February 25, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$W
Wayfair Inc. Stock $w