$EXEL
EXELIXIS, INC. Stock $exel

$exel Overview Financials Valuation SEC Filings Company Website

2020 Q1 Form 10-K Financial Statement

#000093976720000035 Filed on February 25, 2020

Income Statement

Concept	2020 Q1	2020	2018 Q4
Revenue	$226.9M	$967.8M	$228.6M
YoY Change	5.3%	0.0%	90.39%
Cost Of Revenue	$9.300M	$33.10M	$7.400M
YoY Change	23.98%	-0.01%	76.19%
Gross Profit	$217.6M	$934.7M	$168.9M
YoY Change	26.45%	0.0%	84.52%
Gross Profit Margin	95.9%	96.58%	73.87%
Selling, General & Admin	$62.90M	$228.2M	$52.40M
YoY Change	4.59%	0.02%	13.42%
% of Gross Profit	28.91%	24.42%	31.03%
Research & Development	$101.9M	$337.0M	$57.30M
YoY Change	61.01%	-0.01%	77.95%
% of Gross Profit	46.83%	36.05%	33.93%
Depreciation & Amortization	$2.200M	$8.348M	$2.000M
YoY Change	12.13%	0.58%	400.0%
% of Gross Profit	1.01%	0.89%	1.18%
Operating Expenses	$164.8M	$598.3M	$109.6M
YoY Change	25.87%	5.86%	39.8%
Operating Profit	$52.80M	$369.5M	$111.6M
YoY Change	-37.56%	-0.01%	198.15%
Interest Expense	$7.200M	$0.00	$4.700M
YoY Change	18.03%	-100.0%
% of Operating Profit	13.64%	0.0%	4.21%
Other Income/Expense, Net	$0.00	$28.64M	$0.00
YoY Change	-100.0%	3991.29%	-100.0%
Pretax Income	$60.00M	$398.1M	$116.4M
YoY Change	-33.83%	0.0%	199.23%
Income Tax	$11.40M	$77.10M	-$243.7M
% Of Pretax Income	19.0%	19.37%	-209.36%
Net Earnings	$48.60M	$321.0M	$360.1M
YoY Change	-35.86%	0.0%	835.56%
Net Earnings / Revenue	21.42%	33.17%	157.52%
Basic Earnings Per Share		$1.06	$1.20
Diluted Earnings Per Share	$153.9K	$1.02	$1.15
COMMON SHARES
Basic Shares Outstanding	305.4M shares	302.6M shares	299.0M shares
Diluted Shares Outstanding		315.0M shares

Balance Sheet

Concept	2020 Q1	2020	2018 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$954.4M	$1.207B	$693.3M
YoY Change	19.34%	41.57%	78.78%
Cash & Equivalents	$266.5M	$319.2M	$314.8M
Short-Term Investments	$597.0M	$887.3M	$378.6M
Other Short-Term Assets	$29.80M	$57.00M	$15.00M
YoY Change	111.35%	120.08%	61.29%
Inventory	$12.89M	$21.00M	$9.838M
Prepaid Expenses
Receivables	$137.3M	$160.9M	$162.8M
Other Receivables	$0.00	$0.00	$16.06M
Total Short-Term Assets	$1.011B	$1.445B	$897.0M
YoY Change	6.86%	42.94%	85.0%
LONG-TERM ASSETS
Property, Plant & Equipment	$48.89M	$110.4M	$50.90M
YoY Change	-3.29%	21.72%	353.91%
Goodwill	$63.68M		$63.68M
YoY Change	0.0%		0.0%
Intangibles
YoY Change
Long-Term Investments	$484.4M	$332.3M	$157.2M
YoY Change	121.59%	-37.85%	144.48%
Other Assets	$53.15M	$185.6M	$8.291M
YoY Change	1261.99%	0.16%	-31.43%
Total Long-Term Assets	$874.5M	$691.9M	$525.3M
YoY Change	46.85%	-20.88%	208.22%
TOTAL ASSETS
Total Short-Term Assets	$1.011B	$1.445B	$897.0M
Total Long-Term Assets	$874.5M	$691.9M	$525.3M
Total Assets	$1.886B	$2.137B	$1.422B
YoY Change	22.3%	13.34%	117.05%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$11.58M	$23.60M	$10.90M
YoY Change	18.8%	103.45%	13.85%
Accrued Expenses	$70.30M	$115.9M	$60.50M
YoY Change	32.14%	27.78%	-8.33%
Deferred Revenue	$0.00		$0.00
YoY Change	-100.0%		-100.0%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due			$0.00
YoY Change
Total Short-Term Liabilities	$142.7M	$204.7M	$105.5M
YoY Change	14.08%	43.45%	-8.42%
LONG-TERM LIABILITIES
Long-Term Debt	$0.00	$0.00	$100.0K
YoY Change			-99.31%
Other Long-Term Liabilities	$2.347M	$53.60M	$1.286M
YoY Change	-30.17%	-5.96%	-24.57%
Total Long-Term Liabilities	$2.347M	$53.60M	$1.286M
YoY Change	-30.17%	-5.96%	-24.57%
TOTAL LIABILITIES
Total Short-Term Liabilities	$142.7M	$204.7M	$105.5M
Total Long-Term Liabilities	$2.347M	$53.60M	$1.286M
Total Liabilities	$199.7M	$258.2M	$134.8M
YoY Change	27.38%	29.29%	-63.59%
SHAREHOLDERS EQUITY
Retained Earnings	-$559.4M		-$880.4M
YoY Change	-30.48%		-43.94%
Common Stock	$305.0K		$300.0K
YoY Change	0.99%		1.35%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$1.686B	$1.879B	$1.287B
YoY Change
Total Liabilities & Shareholders Equity	$1.886B	$2.137B	$1.422B
YoY Change	22.3%	13.34%	117.05%

Cashflow Statement

Concept	2020 Q1	2020	2018 Q4
OPERATING ACTIVITIES
Net Income	$48.60M	$321.0M	$360.1M
YoY Change	-35.86%	0.0%	835.56%
Depreciation, Depletion And Amortization	$2.200M	$8.348M	$2.000M
YoY Change	12.13%	0.58%	400.0%
Cash From Operating Activities	$56.10M	$527.0M	$104.6M
YoY Change	-65.28%	-0.01%	96.25%
INVESTING ACTIVITIES
Capital Expenditures	-$3.000M	$12.83M	-$2.900M
YoY Change	-230.04%	-200.27%	-83.62%
Acquisitions
YoY Change
Other Investing Activities	$35.60M	-$100.9M	-$140.0M
YoY Change	-77.64%	-82.43%	19900.0%
Cash From Investing Activities	$32.60M	-$587.2M	-$142.8M
YoY Change	-130.28%	0.01%	680.33%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net		$0.00
YoY Change
Cash From Financing Activities	2.100M	$12.55M	-1.100M
YoY Change	-59.82%	-0.37%	57.14%
NET CHANGE
Cash From Operating Activities	56.10M	$527.0M	104.6M
Cash From Investing Activities	32.60M	-$587.2M	-142.8M
Cash From Financing Activities	2.100M	$12.55M	-1.100M
Net Change In Cash	90.80M	-$47.74M	-39.30M
YoY Change	53.48%	0.29%	-214.58%
FREE CASH FLOW
Cash From Operating Activities	$56.10M	$527.0M	$104.6M
Capital Expenditures	-$3.000M	$12.83M	-$2.900M
Free Cash Flow	$59.10M	$514.1M	$107.5M
YoY Change	-62.9%	-4.76%	51.41%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2020	dei	Amendment Flag AmendmentFlag	false
CY2020	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--01-03
CY2020	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2020	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2019
CY2020	dei	Entity Central Index Key EntityCentralIndexKey	0000939767
CY2018Q4	exel	Inventory Manufactured Before Regulatory Approval InventoryManufacturedBeforeRegulatoryApproval	0	USD
CY2017Q1	exel	Medicare Part D Funding Mandate MedicarePartDFundingMandate	0.50
CY2018Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2020Q1	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.001
CY2018Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	400000000	shares
CY2020Q1	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	400000000	shares
CY2018Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	299876000	shares
CY2020Q1	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	304831000	shares
CY2018Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	299876000	shares
CY2020Q1	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	304831000	shares
CY2017	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	0	USD
CY2018	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-156000	USD
CY2020	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	1049000	USD
CY2017	us-gaap	Other Than Temporary Impairment Loss Debt Securities Available For Sale OtherThanTemporaryImpairmentLossDebtSecuritiesAvailableForSale	0	USD
CY2018	us-gaap	Other Than Temporary Impairment Loss Debt Securities Available For Sale OtherThanTemporaryImpairmentLossDebtSecuritiesAvailableForSale	0	USD
CY2018Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2020Q1	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.001
CY2018Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2020Q1	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2018Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2020Q1	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2020	dei	Document Type DocumentType	10-K
CY2020	dei	Document Annual Report DocumentAnnualReport	true
CY2020	dei	Document Period End Date DocumentPeriodEndDate	2020-01-03
CY2020	dei	Document Transition Report DocumentTransitionReport	false
CY2020	dei	Entity File Number EntityFileNumber	000-30235
CY2020	dei	Entity Registrant Name EntityRegistrantName	EXELIXIS, INC.
CY2020	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2020	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	04-3257395
CY2020	dei	Entity Address Address Line1 EntityAddressAddressLine1	1851 Harbor Bay Parkway
CY2020	dei	Entity Address City Or Town EntityAddressCityOrTown	Alameda,
CY2020	dei	Entity Address State Or Province EntityAddressStateOrProvince	CA
CY2020	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	94502
CY2020	dei	City Area Code CityAreaCode	650
CY2020	dei	Local Phone Number LocalPhoneNumber	837-7000
CY2020	dei	Security12b Title Security12bTitle	Common Stock $.001 Par Value per Share
CY2020	dei	Trading Symbol TradingSymbol	EXEL
CY2020	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2020	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2020	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2020	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2020	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2020	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2020	dei	Entity Small Business EntitySmallBusiness	false
CY2020	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2020	dei	Entity Shell Company EntityShellCompany	false
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CY2020Q1	exel	Accrued Collaboration Liability Current AccruedCollaborationLiabilityCurrent	11856000	USD
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CY2018Q4	us-gaap	Liabilities Current LiabilitiesCurrent	105472000	USD
CY2020Q1	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	6596000	USD
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CY2017	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	17409000	USD
CY2017	us-gaap	Stock Issued During Period Value Other StockIssuedDuringPeriodValueOther	0	USD
CY2017	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	23938000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	284961000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	690070000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-354000	USD
CY2018	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	13411000	USD
CY2018	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	40626000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	1287453000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	321012000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	3770000	USD
CY2020	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	17133000	USD
CY2020	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	56602000	USD
CY2020Q1	us-gaap	Stockholders Equity StockholdersEquity	1685970000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	321012000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	690070000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	154227000	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	8348000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	4915000	USD
CY2017	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	1187000	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	56602000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	40626000	USD
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	23938000	USD
CY2020	exel	Noncash Lease Expense NoncashLeaseExpense	2819000	USD
CY2018	exel	Noncash Lease Expense NoncashLeaseExpense	2854000	USD
CY2017	exel	Noncash Lease Expense NoncashLeaseExpense	0	USD
CY2020	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-71002000	USD
CY2018	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	244111000	USD
CY2017	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	0	USD
CY2020	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-88000	USD
CY2018	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-1129000	USD
CY2017	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	6795000	USD
CY2020	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-43716000	USD
CY2018	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	85471000	USD
CY2017	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	43299000	USD
CY2020	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	5731000	USD
CY2018	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	3181000	USD
CY2017	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	3319000	USD
CY2020	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	5723000	USD
CY2018	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	8525000	USD
CY2017	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	378000	USD
CY2020	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	-9301000	USD
CY2018	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	271000	USD
CY2017	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	13745000	USD
CY2020	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	44124000	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	17143000	USD
CY2017	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	26305000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	526956000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	415720000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	165611000	USD
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	12834000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	33297000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	21143000	USD
CY2020	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	0	USD
CY2018	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	308000	USD
CY2017	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	164000	USD
CY2020	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	1182682000	USD
CY2018	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	557832000	USD
CY2017	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	319090000	USD
CY2020	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	608269000	USD
CY2018	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	292971000	USD
CY2017	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	376864000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-587247000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-297850000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	36795000	USD
CY2020	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	22499000	USD
CY2018	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	17278000	USD
CY2017	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans Including Stock Options ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions	22423000	USD
CY2020	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	9904000	USD
CY2018	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	7574000	USD
CY2017	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	6563000	USD
CY2020	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	0	USD
CY2018	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	0	USD
CY2017	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	185788000	USD
CY2020	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-42000	USD
CY2018	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-13000	USD
CY2017	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	0	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	12553000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	9691000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-169928000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-47738000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	127561000	USD
CY2017	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	32478000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	315875000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	188314000	USD
CY2016Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	155836000	USD
CY2020Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	268137000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	315875000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	188314000	USD
CY2020	us-gaap	Interest Paid Net InterestPaidNet	0	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	0	USD
CY2017	us-gaap	Interest Paid Net InterestPaidNet	20460000	USD
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	7873000	USD
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	10677000	USD
CY2017	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	538000	USD
CY2020	exel	Right Of Use Asset Obtained In Exchange For Lease Liability RightOfUseAssetObtainedInExchangeForLeaseLiability	29562000	USD
CY2018	exel	Right Of Use Asset Obtained In Exchange For Lease Liability RightOfUseAssetObtainedInExchangeForLeaseLiability	17180000	USD
CY2020	us-gaap	Construction In Progress Expenditures Incurred But Not Yet Paid ConstructionInProgressExpendituresIncurredButNotYetPaid	0	USD
CY2018	us-gaap	Construction In Progress Expenditures Incurred But Not Yet Paid ConstructionInProgressExpendituresIncurredButNotYetPaid	0	USD
CY2017	us-gaap	Construction In Progress Expenditures Incurred But Not Yet Paid ConstructionInProgressExpendituresIncurredButNotYetPaid	14530000	USD
CY2020	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	26000	USD
CY2018	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	802000	USD
CY2017	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	524000	USD
CY2020	us-gaap	Fiscal Period FiscalPeriod	<div style="line-height:120%;padding-bottom:0px;padding-top:12px;text-align:left;padding-left:0px;text-indent:48px;font-size:10pt;"><span style="font-family:Calibri,sans-serif;font-size:10pt;color:#000000;">We have adopted a 52- or 53-week fiscal year policy that ends on the Friday closest to December 31st. Fiscal year 2019, which was a 53-week fiscal year, ended on January 3, 2020, fiscal year 2018, which was a 52-week fiscal year, ended on December 28, 2018 and fiscal year 2017, which was a 52-week fiscal year, ended on December 29, 2017. For convenience, references in this report as of and for the fiscal years ended January 3, 2020, December 28, 2018 and December 29, 2017 are indicated as being as of and for the years ended December 31, 2019, 2018 and 2017, respectively. </span></div>
CY2020	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	1	segment
CY2020	us-gaap	Use Of Estimates UseOfEstimates	<div style="line-height:120%;padding-top:12px;text-align:left;padding-left:0px;text-indent:0px;font-size:10pt;"><span style="font-family:Calibri,sans-serif;font-size:10pt;color:#000000;font-style:normal;font-weight:bold;text-decoration:none;">Use of Estimates</span></div><div style="line-height:120%;padding-bottom:0px;padding-top:12px;text-align:left;padding-left:0px;text-indent:48px;font-size:10pt;"><span style="font-family:Calibri,sans-serif;font-size:10pt;color:#000000;">The preparation of the accompanying Consolidated Financial Statements conforms to accounting principles generally accepted in the U.S., which requires management to make judgments, estimates and assumptions that affect the reported amounts of assets, liabilities, equity, revenues and expenses, and related disclosures. On an ongoing basis, we </span></div><div style="line-height:120%;padding-bottom:0px;padding-top:12px;text-align:left;padding-left:0px;font-size:10pt;"><span style="font-family:Calibri,sans-serif;font-size:10pt;color:#000000;">evaluate our significant estimates. We base our estimates on historical experience and on various other market-specific and other relevant assumptions that we believe to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results could differ materially from those estimates.</span></div>
CY2020	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	1	segment
CY2020	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2020	exel	Sales Revenue Percent Discount For Prompt Payment SalesRevenuePercentDiscountForPromptPayment	0.02
CY2020	exel	Sales Revenue Discount Expectedtobe Earned Percent SalesRevenueDiscountExpectedtobeEarnedPercent	1
CY2018Q1	exel	Medicare Part D Funding Mandate MedicarePartDFundingMandate	0.50
CY2019Q1	exel	Medicare Part D Funding Mandate MedicarePartDFundingMandate	0.70
CY2020Q1	exel	Inventory Manufactured Before Regulatory Approval InventoryManufacturedBeforeRegulatoryApproval	0	USD
CY2020	us-gaap	Advertising Expense AdvertisingExpense	17900000	USD
CY2018	us-gaap	Advertising Expense AdvertisingExpense	14800000	USD
CY2017	us-gaap	Advertising Expense AdvertisingExpense	8600000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	967775000	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	853826000	USD
CY2017	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	452477000	USD
CY2020	us-gaap	Contract With Customer Performance Obligation Satisfied In Previous Period ContractWithCustomerPerformanceObligationSatisfiedInPreviousPeriod	161200000	USD
CY2018	us-gaap	Contract With Customer Performance Obligation Satisfied In Previous Period ContractWithCustomerPerformanceObligationSatisfiedInPreviousPeriod	198100000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	967775000	USD
CY2018	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	853826000	USD
CY2017	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	452477000	USD
CY2017Q4	us-gaap	Valuation Allowances And Reserves Balance ValuationAllowancesAndReservesBalance	9493000	USD
CY2018	exel	Valuation Allowances And Reserves Additions For Sales In Current Period ValuationAllowancesAndReservesAdditionsForSalesInCurrentPeriod	119600000	USD
CY2018	exel	Valuation Allowances And Reserves Additions For Sales In Prior Period ValuationAllowancesAndReservesAdditionsForSalesInPriorPeriod	-350000	USD
CY2018	us-gaap	Valuation Allowances And Reserves Deductions ValuationAllowancesAndReservesDeductions	111467000	USD
CY2018Q4	us-gaap	Valuation Allowances And Reserves Balance ValuationAllowancesAndReservesBalance	17276000	USD
CY2020	exel	Valuation Allowances And Reserves Additions For Sales In Current Period ValuationAllowancesAndReservesAdditionsForSalesInCurrentPeriod	193791000	USD
CY2020	exel	Valuation Allowances And Reserves Additions For Sales In Prior Period ValuationAllowancesAndReservesAdditionsForSalesInPriorPeriod	3880000	USD
CY2020	us-gaap	Valuation Allowances And Reserves Deductions ValuationAllowancesAndReservesDeductions	188714000	USD
CY2020Q1	us-gaap	Valuation Allowances And Reserves Balance ValuationAllowancesAndReservesBalance	26233000	USD
CY2020Q1	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	1100000	USD
CY2018Q4	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	0	USD
CY2020Q1	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	6600000	USD
CY2018Q4	us-gaap	Contract With Customer Liability Noncurrent ContractWithCustomerLiabilityNoncurrent	15900000	USD
CY2020	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	6500000	USD
CY2018	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	8700000	USD
CY2020Q1	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	63100000	USD
CY2020Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	266501000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	314775000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	183164000	USD
CY2020Q1	us-gaap	Restricted Cash Current RestrictedCashCurrent	0	USD
CY2018Q4	us-gaap	Restricted Cash Current RestrictedCashCurrent	0	USD
CY2017Q4	us-gaap	Restricted Cash Current RestrictedCashCurrent	504000	USD
CY2020Q1	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	1636000	USD
CY2018Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	1100000	USD
CY2017Q4	us-gaap	Restricted Cash Noncurrent RestrictedCashNoncurrent	4646000	USD
CY2020Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	268137000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	315875000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	188314000	USD
CY2020Q1	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	1308351000	USD
CY2020Q1	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	4121000	USD
CY2020Q1	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	8000	USD
CY2020Q1	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	1312464000	USD
CY2020Q1	exel	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents And Available For Sale Debt Securities Amortized Cost Basis CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAndAvailableForSaleDebtSecuritiesAmortizedCostBasis	1384510000	USD
CY2020Q1	exel	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents And Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAndAvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	4126000	USD
CY2020Q1	exel	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents And Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAndAvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	8000	USD
CY2020Q1	exel	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents And Available For Sale Debt Securities CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAndAvailableForSaleDebtSecurities	1388628000	USD
CY2018Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	781099000	USD
CY2018Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	182000	USD
CY2018Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	883000	USD
CY2018Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	780398000	USD
CY2018Q4	exel	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents And Available For Sale Debt Securities Amortized Cost Basis CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAndAvailableForSaleDebtSecuritiesAmortizedCostBasis	852322000	USD
CY2018Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	182000	USD
CY2018Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	883000	USD
CY2018Q4	exel	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents And Available For Sale Debt Securities CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsAndAvailableForSaleDebtSecurities	851621000	USD
CY2020Q1	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	17377000	USD
CY2020Q1	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	8000	USD
CY2020Q1	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	0	USD
CY2020Q1	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	0	USD
CY2020Q1	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	17377000	USD
CY2020Q1	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	8000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	271358000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	623000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	48809000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	260000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	320167000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	883000	USD
CY2020Q1	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	9	investment
CY2018Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	199	investment
CY2020	us-gaap	Other Than Temporary Impairment Loss Debt Securities Available For Sale OtherThanTemporaryImpairmentLossDebtSecuritiesAvailableForSale	0	USD
CY2020Q1	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	789913000	USD
CY2018Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	626711000	USD
CY2020Q1	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	522551000	USD
CY2018Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	153687000	USD
CY2020Q1	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	1312464000	USD
CY2018Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	780398000	USD
CY2020Q1	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	1312464000	USD
CY2020Q1	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	1347664000	USD
CY2018Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	780398000	USD
CY2018Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	844738000	USD
CY2020Q1	us-gaap	Inventory Raw Materials InventoryRawMaterials	2709000	USD
CY2018Q4	us-gaap	Inventory Raw Materials InventoryRawMaterials	1922000	USD
CY2020Q1	us-gaap	Inventory Work In Process InventoryWorkInProcess	9447000	USD
CY2018Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	6170000	USD
CY2020Q1	us-gaap	Inventory Finished Goods InventoryFinishedGoods	4367000	USD
CY2018Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	3836000	USD
CY2020Q1	us-gaap	Inventory Gross InventoryGross	16523000	USD
CY2018Q4	us-gaap	Inventory Gross InventoryGross	11928000	USD
CY2020Q1	us-gaap	Inventory Gross InventoryGross	16523000	USD
CY2018Q4	us-gaap	Inventory Gross InventoryGross	11928000	USD
CY2020	us-gaap	Inventory Write Down InventoryWriteDown	1300000	USD
CY2018	us-gaap	Inventory Write Down InventoryWriteDown	1100000	USD
CY2017	us-gaap	Inventory Write Down InventoryWriteDown	1200000	USD
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	16.89
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	51000	shares
CY2020Q1	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	74452000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	68206000	USD
CY2020Q1	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	25560000	USD
CY2018Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	17309000	USD
CY2020Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	48892000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	50897000	USD
CY2020	us-gaap	Depreciation Depreciation	8300000	USD
CY2018	us-gaap	Depreciation Depreciation	4900000	USD
CY2017	us-gaap	Depreciation Depreciation	1200000	USD
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	56602000	USD
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	40626000	USD
CY2017	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	23938000	USD
CY2020Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	6258319	shares
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	22.98
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	22674000	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	8.71
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	1311000	shares
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	20.08
CY2020	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	3274000	shares
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	5.01
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	217000	shares
CY2020Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	20443000	shares
CY2020Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	9.91
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P3Y2M12D
CY2020Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	169299000	USD
CY2020Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	16216000	shares
CY2020Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	7.36
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P2Y7M6D
CY2020Q1	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	167449000	USD
CY2020	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	4600000	USD
CY2018	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	3600000	USD
CY2017	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	1700000	USD
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2017	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	0	USD
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	6095000	USD
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	6133000	USD
CY2017	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	4350000	USD
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	6095000	USD
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	6133000	USD
CY2017	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	4350000	USD
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	71580000	USD
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-238675000	USD
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	0	USD
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-578000	USD
CY2018	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-5436000	USD
CY2017	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	0	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	71002000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-244111000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	0	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	77097000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-237978000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4350000	USD
CY2020	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
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.34
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	83603000	USD
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	94939000	USD
CY2017	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	53916000	USD
CY2020	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	1148000	USD
CY2018	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	4690000	USD
CY2017	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	8282000	USD
CY2020	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	3208000	USD
CY2018	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-315394000	USD
CY2017	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-34266000	USD
CY2020	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	8299000	USD
CY2018	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	18308000	USD
CY2017	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	0	USD
CY2020	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-9177000	USD
CY2018	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-5998000	USD
CY2017	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-20548000	USD
CY2020	exel	Effective Income Tax Rate Reconciliation Nondeductible Expense Deferred Compensation EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDeferredCompensation	4228000	USD
CY2018	exel	Effective Income Tax Rate Reconciliation Nondeductible Expense Deferred Compensation EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDeferredCompensation	1111000	USD
CY2017	exel	Effective Income Tax Rate Reconciliation Nondeductible Expense Deferred Compensation EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDeferredCompensation	1239000	USD
CY2020	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	0	USD
CY2018	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	0	USD
CY2017	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	1367000	USD
CY2020	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	2386000	USD
CY2018	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	982000	USD
CY2017	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-5640000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	77097000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-237978000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4350000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	65131000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	146701000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	110037000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	98467000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	26792000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	29929000	USD
CY2020Q1	exel	Deferred Tax Assets Amortization Of Deferred Stock Compensation Non Qualified DeferredTaxAssetsAmortizationOfDeferredStockCompensationNonQualified	14966000	USD
CY2018Q4	exel	Deferred Tax Assets Amortization Of Deferred Stock Compensation Non Qualified DeferredTaxAssetsAmortizationOfDeferredStockCompensationNonQualified	11366000	USD
CY2020Q1	exel	Deferred Tax Assets Leasing Arrangements DeferredTaxAssetsLeasingArrangements	11211000	USD
CY2018Q4	exel	Deferred Tax Assets Leasing Arrangements DeferredTaxAssetsLeasingArrangements	3265000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserves	8248000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserves	7160000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	6547000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	5474000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	345000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	1140000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	243277000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	303502000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	61659000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	58112000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	181618000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	245390000	USD
CY2020Q1	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	9244000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	1279000	USD
CY2020Q1	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	9244000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	1279000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	172374000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	244111000	USD
CY2020Q1	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	61700000	USD
CY2018Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	58100000	USD
CY2020	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	3500000	USD
CY2018	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	-360800000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	76060000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	79342000	USD
CY2016Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	61809000	USD
CY2020	exel	Unrecognized Tax Benefits Increase Decrease Resultingfrom Prior Period Tax Positions UnrecognizedTaxBenefitsIncreaseDecreaseResultingfromPriorPeriodTaxPositions	589000	USD
CY2018Q1	exel	Unrecognized Tax Benefits Increase Decrease Resultingfrom Prior Period Tax Positions UnrecognizedTaxBenefitsIncreaseDecreaseResultingfromPriorPeriodTaxPositions	-4254000	USD
	exel	Unrecognized Tax Benefits Increase Decrease Resultingfrom Prior Period Tax Positions UnrecognizedTaxBenefitsIncreaseDecreaseResultingfromPriorPeriodTaxPositions	247000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	2429000	USD
CY2018Q1	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	1083000	USD
	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	17378000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	0	USD
CY2018Q1	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	111000	USD
	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	92000	USD
CY2020Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	79078000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	76060000	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	79342000	USD
CY2020Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	79100000	USD
CY2020Q1	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	48100000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	321012000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	690070000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	154227000	USD
CY2020	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	0	USD
CY2018	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	0	USD
CY2017	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	367000	USD
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	321012000	USD
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	690070000	USD
CY2017	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	153860000	USD
CY2020	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Diluted UndistributedEarningsLossAllocatedToParticipatingSecuritiesDiluted	0	USD
CY2018	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Diluted UndistributedEarningsLossAllocatedToParticipatingSecuritiesDiluted	0	USD
CY2017	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Diluted UndistributedEarningsLossAllocatedToParticipatingSecuritiesDiluted	-22000	USD
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	321012000	USD
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	690070000	USD
CY2017	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	153882000	USD
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	302584000	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	297892000	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	293588000	shares
CY2020	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	12425000	shares
CY2018	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	14911000	shares
CY2017	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	18415000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	315009000	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	312803000	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	312003000	shares
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.06
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.32
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.52
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.02
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.21
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.49
CY2020Q1	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	41835000	USD
CY2018Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	5867000	USD
CY2020Q1	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	2728000	USD
CY2018Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	2738000	USD
CY2020Q1	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	48011000	USD
CY2018Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	12099000	USD
CY2020Q1	us-gaap	Operating Lease Liability OperatingLeaseLiability	50739000	USD
CY2018Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	14837000	USD
CY2020	us-gaap	Operating Lease Cost OperatingLeaseCost	2844000	USD
CY2018	us-gaap	Operating Lease Cost OperatingLeaseCost	4189000	USD
CY2017	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	3944000	USD
CY2020	us-gaap	Variable Lease Cost VariableLeaseCost	1024000	USD
CY2018	us-gaap	Variable Lease Cost VariableLeaseCost	1661000	USD
CY2017	exel	Operating Leases Variable Lease Expense OperatingLeasesVariableLeaseExpense	2216000	USD
CY2020	us-gaap	Sublease Income SubleaseIncome	0	USD
CY2018	us-gaap	Sublease Income SubleaseIncome	0	USD
CY2017	us-gaap	Operating Leases Rent Expense Sublease Rentals1 OperatingLeasesRentExpenseSubleaseRentals1	1225000	USD
CY2020	us-gaap	Lease Cost LeaseCost	3868000	USD
CY2018	us-gaap	Lease Cost LeaseCost	5850000	USD
CY2017	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	4935000	USD
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	2900000	USD
CY2020Q1	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	4538000	USD
CY2020Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	4669000	USD
CY2020Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	4820000	USD
CY2020Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	5147000	USD
CY2020Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	5407000	USD
CY2020Q1	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	41585000	USD
CY2020Q1	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	66166000	USD
CY2020Q1	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	13685000	USD
CY2020Q1	exel	Lessee Operating Lease Liability Tenant Improvement Reimbursements LesseeOperatingLeaseLiabilityTenantImprovementReimbursements	1742000	USD
CY2020Q1	us-gaap	Operating Lease Liability OperatingLeaseLiability	50739000	USD
CY2020Q1	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.039
CY2020Q1	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P11Y9M18D
CY2019Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	215487000	USD
CY2019Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	240275000	USD
CY2019Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	271703000	USD
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	240310000	USD
CY2019Q1	us-gaap	Gross Profit GrossProfit	172080000	USD
CY2019Q2	us-gaap	Gross Profit GrossProfit	186136000	USD
CY2019Q3	us-gaap	Gross Profit GrossProfit	184231000	USD
	us-gaap	Gross Profit GrossProfit	184406000	USD
CY2019Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	84559000	USD
CY2019Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	91989000	USD
CY2019Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	115606000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	77316000	USD
CY2019Q1	us-gaap	Net Income Loss NetIncomeLoss	75775000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	79042000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	97452000	USD
	us-gaap	Net Income Loss NetIncomeLoss	68743000	USD
CY2019Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.25
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.23
CY2019Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.24
CY2019Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.26
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.32
CY2019Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.25
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.31
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.22
CY2018Q1	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	213719000	USD
CY2018Q2	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	186108000	USD
CY2018Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	225397000	USD
CY2018Q4	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	228602000	USD
CY2018Q1	us-gaap	Gross Profit GrossProfit	128633000	USD
CY2018Q2	us-gaap	Gross Profit GrossProfit	139839000	USD
CY2018Q3	us-gaap	Gross Profit GrossProfit	155586000	USD
CY2018Q4	us-gaap	Gross Profit GrossProfit	168873000	USD
CY2018Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	116307000	USD
CY2018Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	85770000	USD
CY2018Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	125176000	USD
CY2018Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	111602000	USD
CY2018Q1	us-gaap	Net Income Loss NetIncomeLoss	115857000	USD
CY2018Q2	us-gaap	Net Income Loss NetIncomeLoss	87494000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	126630000	USD
CY2018Q4	us-gaap	Net Income Loss NetIncomeLoss	360089000	USD
CY2018Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.39
CY2018Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.29
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.42
CY2018Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.20
CY2018Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.37
CY2018Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.28
CY2018Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.41
CY2018Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.15
CY2019Q1	exel	Milestone Payments Earned MilestonePaymentsEarned	10000000.0	USD
CY2019Q2	exel	Milestone Payments Earned MilestonePaymentsEarned	20400000	USD
CY2019Q3	exel	Milestone Payments Earned MilestonePaymentsEarned	50600000	USD
	exel	Milestone Payments Earned MilestonePaymentsEarned	15100000	USD
CY2018Q1	exel	Milestone Payments Earned MilestonePaymentsEarned	66500000	USD
CY2018Q2	exel	Milestone Payments Earned MilestonePaymentsEarned	25800000	USD
CY2018Q3	exel	Milestone Payments Earned MilestonePaymentsEarned	42600000	USD
CY2018Q4	exel	Milestone Payments Earned MilestonePaymentsEarned	29600000	USD
CY2018Q4	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	244100000	USD

Files In Submission

Name	View Source	Status
0000939767-20-000035-index-headers.html	Edgar Link	pending
0000939767-20-000035-index.html	Edgar Link	pending
0000939767-20-000035.txt	Edgar Link	pending
0000939767-20-000035-xbrl.zip	Edgar Link	pending
exel-20200103.xsd	Edgar Link	pending
exel-20200103_cal.xml	Edgar Link	unprocessable
exel-20200103_def.xml	Edgar Link	unprocessable
exel-20200103_lab.xml	Edgar Link	unprocessable
exel-20200103_pre.xml	Edgar Link	unprocessable
exel2019123110-k.htm	Edgar Link	pending
exel2019123110-k_htm.xml	Edgar Link	completed
exel20191231exhibit1029.htm	Edgar Link	pending
exel20191231exhibit1037.htm	Edgar Link	pending
exel20191231exhibit1039.htm	Edgar Link	pending
exel20191231exhibit1057.htm	Edgar Link	pending
exel20191231exhibit1062.htm	Edgar Link	pending
exel20191231exhibit1063.htm	Edgar Link	pending
exel20191231exhibit211.htm	Edgar Link	pending
exel20191231exhibit231.htm	Edgar Link	pending
exel20191231exhibit311.htm	Edgar Link	pending
exel20191231exhibit312.htm	Edgar Link	pending
exel20191231exhibit321.htm	Edgar Link	pending
exel20191231exhibit42.htm	Edgar Link	pending
exellogo19q4.jpg	Edgar Link	pending
exhibit1062jcraroche2_image1.gif	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
fiveyearchart2019.jpg	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
R1.htm	Edgar Link	pending
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R9999.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$EXEL
EXELIXIS, INC. Stock $exel

2020 Q1 Form 10-K Financial Statement

#000093976720000035 Filed on February 25, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$EXEL EXELIXIS, INC. Stock $exel

2020 Q1 Form 10-K Financial Statement

#000093976720000035 Filed on February 25, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$EXEL
EXELIXIS, INC. Stock $exel