$BLUE
bluebird bio, Inc. Stock $blue

$blue Overview Financials Valuation SEC Filings Company Website

2020 Q1 Form 10-K Financial Statement

#000129397120000007 Filed on February 18, 2020

Income Statement

Concept	2020 Q1	2019	2018 Q4
Revenue	$0.00	$0.00	$19.24M
YoY Change	-100.0%	-100.0%	361.68%
Cost Of Revenue	$1.025M	$2.978M	$800.0K
YoY Change	138.37%	236.5%
Gross Profit	-$1.025M	-$2.978M	$18.40M
YoY Change	-108.51%	-105.55%	338.1%
Gross Profit Margin			95.62%
Selling, General & Admin	$73.25M	$235.8M	$53.50M
YoY Change	21.51%	35.44%	83.85%
% of Gross Profit			290.76%
Research & Development	$154.1M	$327.1M	$119.7M
YoY Change	25.67%	-27.08%	29.27%
% of Gross Profit			650.54%
Depreciation & Amortization	$4.880M	$4.100M	$4.550M
YoY Change	29.1%	-69.4%	25.0%
% of Gross Profit			24.73%
Operating Expenses	$227.4M	$563.0M	$176.2M
YoY Change	24.3%	-10.16%	45.7%
Operating Profit	-$144.5M	-$563.0M	-$157.0M
YoY Change	-15.6%	-1.58%	34.42%
Interest Expense	$5.355M	$17.38M	$4.000M
YoY Change	-46.99%	18.85%	700.0%
% of Operating Profit
Other Income/Expense, Net	-$4.447M	-$9.984M	$1.900M
YoY Change	31.22%	-609.13%	-2000.0%
Pretax Income	-$202.5M	-$555.6M	-$148.8M
YoY Change	23.14%	0.02%	27.18%
Income Tax	$94.00K	-$500.0K	$200.0K
% Of Pretax Income
Net Earnings	-$202.6M	-$789.6M	-$149.0M
YoY Change	23.21%	42.11%	27.12%
Net Earnings / Revenue			-774.43%
Basic Earnings Per Share	-$3.64	-$14.31
Diluted Earnings Per Share	-$3.64	-$14.31	-$2.724M
COMMON SHARES
Basic Shares Outstanding	55.61M shares
Diluted Shares Outstanding

Balance Sheet

Concept	2020 Q1	2019	2018 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$1.018B	$1.107B	$1.891B
YoY Change	-41.16%	-20.13%	46.61%
Cash & Equivalents	$346.6M	$327.2M	$402.6M
Short-Term Investments	$671.7M	$779.2M	$1.489B
Other Short-Term Assets	$54.40M	$45.30M	$33.70M
YoY Change	38.07%	34.42%	13.85%
Inventory
Prepaid Expenses	$40.21M		$19.76M
Receivables	$2.400M	$400.0K
Other Receivables	$0.00	$0.00
Total Short-Term Assets	$967.5M	$1.152B	$1.419B
YoY Change	-29.12%	-18.8%	7.27%
LONG-TERM ASSETS
Property, Plant & Equipment	$153.9M	$337.1M	$246.6M
YoY Change	-48.45%	36.7%	23.55%
Goodwill	$13.13M		$13.13M
YoY Change			0.0%
Intangibles	$13.25M		$13.17M
YoY Change			-22.22%
Long-Term Investments	$107.7M	$131.5M	$506.1M
YoY Change	-73.66%	-74.02%	56.11%
Other Assets	$79.19M	$79.20M	$44.81M
YoY Change	95.05%	76.79%	87.16%
Total Long-Term Assets	$561.6M	$575.2M	$823.8M
YoY Change	-27.4%	-30.18%	42.58%
TOTAL ASSETS
Total Short-Term Assets	$967.5M	$1.152B	$1.419B
Total Long-Term Assets	$561.6M	$575.2M	$823.8M
Total Assets	$1.529B	$1.727B	$2.243B
YoY Change	-28.5%	-22.98%	18.01%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$30.53M	$43.00M	$17.83M
YoY Change	1.08%	141.57%	38.51%
Accrued Expenses	$115.5M	$136.4M	$96.70M
YoY Change	83.33%	41.05%	75.18%
Deferred Revenue	$6.355M		$18.60M
YoY Change	-44.69%		-27.55%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due		$0.00	$1.400M
YoY Change		-100.0%	27.27%
Total Short-Term Liabilities	$184.4M	$223.6M	$146.4M
YoY Change	25.71%	52.73%	53.15%
LONG-TERM LIABILITIES
Long-Term Debt	$0.00	$0.00	$153.3M
YoY Change		-100.0%	-0.9%
Other Long-Term Liabilities	$2.784M	$218.9M	$3.107M
YoY Change	-98.73%	277.41%	11.76%
Total Long-Term Liabilities	$2.784M	$218.9M	$3.107M
YoY Change	-98.73%	3.6%	11.76%
TOTAL LIABILITIES
Total Short-Term Liabilities	$184.4M	$223.6M	$146.4M
Total Long-Term Liabilities	$2.784M	$218.9M	$3.107M
Total Liabilities	$408.7M	$442.4M	$357.8M
YoY Change	11.51%	23.64%	29.1%
SHAREHOLDERS EQUITY
Retained Earnings	-$2.480B		-$1.499B
YoY Change			64.02%
Common Stock	$556.0K		$547.0K
YoY Change			10.73%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$1.120B	$1.285B	$1.885B
YoY Change
Total Liabilities & Shareholders Equity	$1.529B	$1.727B	$2.243B
YoY Change	-28.5%	-22.98%	18.01%

Cashflow Statement

Concept	2020 Q1	2019	2018 Q4
OPERATING ACTIVITIES
Net Income	-$202.6M	-$789.6M	-$149.0M
YoY Change	23.21%	42.11%	27.12%
Depreciation, Depletion And Amortization	$4.880M	$4.100M	$4.550M
YoY Change	29.1%	-69.4%	25.0%
Cash From Operating Activities	-$206.1M	-$564.4M	-$129.7M
YoY Change	33.71%	36.51%	36.01%
INVESTING ACTIVITIES
Capital Expenditures	$10.68M	$71.03M	-$12.90M
YoY Change	-44.74%	27.43%	-31.49%
Acquisitions
YoY Change
Other Investing Activities	$235.3M	$584.1M	-$408.2M
YoY Change	-1437.41%	-193.64%	-979.36%
Cash From Investing Activities	$224.6M	$507.8M	-$421.1M
YoY Change	-708.4%	-174.74%	-1626.28%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net		$0.00
YoY Change		-100.0%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	$963.0K	$21.19M	1.920M
YoY Change	-90.58%	-97.13%	-99.67%
NET CHANGE
Cash From Operating Activities	-$206.1M	-$564.4M	-129.7M
Cash From Investing Activities	$224.6M	$507.8M	-421.1M
Cash From Financing Activities	$963.0K	$21.19M	1.920M
Net Change In Cash	$19.42M	-$35.39M	-548.9M
YoY Change	-110.74%	-90.04%	-205.45%
FREE CASH FLOW
Cash From Operating Activities	-$206.1M	-$564.4M	-$129.7M
Capital Expenditures	$10.68M	$71.03M	-$12.90M
Free Cash Flow	-$216.8M	-$635.4M	-$116.8M
YoY Change	24.97%	35.44%	52.62%

Facts In Submission

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CY2017	us-gaap	Net Income Loss NetIncomeLoss	-335643000	USD
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CY2017	us-gaap	Profit Loss ProfitLoss	-335643000	USD
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CY2018	blue	Fair Value Of Contingent Consideration Non Cash FairValueOfContingentConsiderationNonCash	2999000	USD
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CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	110836000	USD
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	53282000	USD
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CY2018	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	5880000	USD
CY2017	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-3153000	USD
CY2019	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	13913000	USD
CY2018	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	24288000	USD
CY2017	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	20092000	USD
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CY2019	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	23600000	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	3614000	USD
CY2017	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	526000	USD
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CY2018	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	37832000	USD
CY2017	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	5848000	USD
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CY2017	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	1024000	USD
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CY2018	blue	Increase Decrease In Collaboration Research Advancement IncreaseDecreaseInCollaborationResearchAdvancement	-43954000	USD
CY2017	blue	Increase Decrease In Collaboration Research Advancement IncreaseDecreaseInCollaborationResearchAdvancement	0	USD
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CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	62242000	USD
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CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	772268000	USD
CY2019	blue	Assets Acquired Under Financing Lease Obligation AssetsAcquiredUnderFinancingLeaseObligation	0	USD
CY2018	blue	Assets Acquired Under Financing Lease Obligation AssetsAcquiredUnderFinancingLeaseObligation	0	USD
CY2017	blue	Assets Acquired Under Financing Lease Obligation AssetsAcquiredUnderFinancingLeaseObligation	3271000	USD
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CY2018	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	7449000	USD
CY2017	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	2566000	USD
CY2019	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	23939000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	0	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	15494000	USD
CY2017	us-gaap	Interest Paid Net InterestPaidNet	11411000	USD
CY2019	us-gaap	Income Taxes Paid IncomeTaxesPaid	637000	USD
CY2018	us-gaap	Income Taxes Paid IncomeTaxesPaid	358000	USD
CY2017	us-gaap	Income Taxes Paid IncomeTaxesPaid	91000	USD
CY2019	us-gaap	Nature Of Operations NatureOfOperations	Description of the business<div style="text-indent:18pt;margin-top:6pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">bluebird bio, Inc. (the “Company” or “bluebird”) was incorporated in Delaware on April 16, 1992, and is headquartered in Cambridge, Massachusetts. The Company is a biotechnology company committed to researching, developing and commercializing potentially transformative gene therapies for severe genetic diseases and cancer. Since its inception, the Company has devoted substantially all of its resources to its research and development efforts relating to its product candidates, including activities to manufacture product candidates, conduct clinical studies of its product candidates, perform preclinical research to identify new product candidates and provide selling, general and administrative support for these operations, including commercial-readiness activities.</span></div><div style="text-indent:18pt;margin-top:12pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">The Company’s programs in severe genetic diseases include its programs in β-thalassemia (TDT), sickle cell disease (SCD), and cerebral adrenoleukodystrophy (CALD). The Company’s programs in oncology are focused on developing novel T cell-based immunotherapies, including chimeric antigen receptor (CAR) and T cell receptor (TCR) T cell therapies. Idecabtagene vicleucel, or ide-cel, and bb21217, which are product candidates in oncology under the Company’s collaboration arrangement with Bristol-Myers Squibb ("BMS"), formerly Celgene Corporation (prior to its acquisition by BMS in November 2019), are CAR T cell product candidates for the treatment of multiple myeloma. Please refer to Note 11, </span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%;">Collaborative arrangements,</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;"> for further discussion of the Company’s collaboration with BMS.</span></div><div style="text-indent:18pt;margin-top:12pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">In June 2019, the Company received conditional marketing authorization from the European Commission for ZYNTEGLO</span><sup style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:120%;vertical-align:top;">TM</sup><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;"> gene therapy (autologous CD34+ cells encoding β</span><sup style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:120%;vertical-align:top;">A-T87Q</sup><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">-globin gene), also referred to as LentiGlobin for TDT, for the treatment of patients 12 years and older with TDT who do not have a β</span><sup style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:120%;vertical-align:top;">0</sup><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">/β</span><sup style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:120%;vertical-align:top;">0</sup><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;"> genotype, for whom hematopoietic stem cell (HSC) transplantation is appropriate but a human leukocyte-matched related HSC donor is not available. Since receiving conditional marketing authorization for ZYNTEGLO, the Company has continued to advance its commercial readiness activities. Through December 31, 2019, the Company had not generated any revenue from product sales.</span></div><div style="text-indent:18pt;margin-top:12pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">In accordance with Accounting Standards Codification ("ASC") 205-40, </span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%;">Going Concern</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">, the Company evaluated whether there are conditions and events, considered in the aggregate, that raise substantial doubt about its ability to continue as a going concern within one year after the date that the consolidated financial statements are issued. The Company has incurred losses since inception and to date has financed its operations primarily through the sale of equity securities and, to a lesser extent, through collaboration agreements and grants from governmental agencies and charitable foundations. As of December 31, 2019, the Company had an accumulated deficit of $2.28 billion. During the year ended December 31, 2019, the Company incurred a loss of $789.6 million and used $564.4 million of cash in operations. The Company expects to continue to generate operating losses and negative operating cash flows for the next few years and will need additional funding to support its planned operating activities through profitability. The transition to profitability is dependent upon the successful development, approval, and commercialization of the Company’s products and product candidates and the achievement of a level of revenues adequate to support its cost structure. </span></div><div style="text-indent:18pt;margin-top:12pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">As of December 31, 2019, the Company had cash, cash equivalents and marketable securities of $1.24 billion. The Company expects its cash, cash equivalents and marketable securities will be sufficient to fund current planned operations for at least the next twelve months from the date of issuance of these financial statements, though it may pursue additional cash resources through public or private equity or debt financings or by establishing additional collaborations with other companies. Management's expectations with respect to its ability to fund current planned operations is based on estimates that are subject to risks and uncertainties. If actual results are different from management's estimates, the Company may need to seek additional strategic or financing opportunities sooner than would otherwise be expected. However, there is no guarantee that any of these strategic or financing opportunities will be executed or executed on favorable terms, and some could be dilutive to existing stockholders. If the Company is unable to obtain additional funding on a timely basis, it may be forced to significantly curtail, delay, or discontinue one or more of its planned research or development programs or be unable to expand its operations or otherwise capitalize on its commercialization of its product candidates.</span></div>
CY2019Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-2280000000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-789600000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-564400000	USD
CY2019Q4	us-gaap	Investments And Cash InvestmentsAndCash	1240000000	USD
CY2019	us-gaap	Use Of Estimates UseOfEstimates	<div style="margin-top:18pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%;">Use of estimates</span></div><div style="text-indent:18pt;margin-top:6pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts in the financial statements and accompanying notes. Actual results could materially differ from those estimates. Management considers many factors in selecting appropriate financial accounting policies and controls, and in developing the estimates and assumptions that are used in the preparation of these financial statements. Management must apply significant judgment in this process. In addition, other factors may affect estimates, including: expected business and operational changes, sensitivity and volatility associated with the assumptions used in developing estimates, and whether historical trends are expected to be representative of future trends. The estimation process often may yield a range of potentially reasonable estimates of the ultimate future outcomes and management must select an amount that falls within that range of reasonable estimates. This process may result in actual results differing materially from those estimated amounts used in the preparation of the financial statements.</span></div><div style="text-indent:18pt;margin-top:12pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">Estimates and judgments are used in the following areas, among others: future undiscounted cash flows and subsequent fair value estimates used to assess potential and measure any impairment of long-lived assets, including goodwill and intangible assets, and the measurement of right-of-use assets and lease liabilities, contingent consideration, stock-based compensation expense, accrued expenses, income taxes, and the assessment of the Company's ability to fund its operations for at least the next twelve months from the date of issuance of these financial statements. In addition, estimates and judgments are used in the Company’s accounting for its revenue-generating arrangements, in particular as it relates to determining the standalone selling price of performance obligations, evaluating whether an option to acquire additional goods and services represents a material right, estimating the total transaction price, including estimating variable consideration and the probability of achieving future potential development and regulatory milestones, and the period of performance over which revenue may be recognized.</span></div>
CY2019	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div style="margin-top:18pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%;">Concentrations of credit risk and off-balance sheet risk</span></div><div style="text-indent:18pt;margin-top:6pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;">Financial instruments that subject the Company to credit risk primarily consist of cash and cash equivalents and available-for-sale securities. The Company maintains its cash and cash equivalent balances with high-quality financial institutions and, consequently, the Company believes that such funds are subject to minimal credit risk. The Company’s marketable securities primarily consist of U.S. Treasury securities, U.S. government agency securities, certificates of deposit, corporate bonds, and commercial paper, and potentially subject the Company to concentrations of credit risk. The Company has adopted an investment policy that limits the amounts the Company may invest in any one type of investment and requires all investments held by the Company to be at least AA+/Aa1 rated, thereby reducing credit risk exposure.</span></div>
CY2019Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	0	USD
CY2018Q4	blue	Accrued Property Plant And Equipment Current AccruedPropertyPlantAndEquipmentCurrent	5451000	USD
CY2019	us-gaap	Investment Income Net Amortization Of Discount And Premium InvestmentIncomeNetAmortizationOfDiscountAndPremium	34800000	USD
CY2018	us-gaap	Investment Income Net Amortization Of Discount And Premium InvestmentIncomeNetAmortizationOfDiscountAndPremium	30100000	USD
CY2017	us-gaap	Investment Income Net Amortization Of Discount And Premium InvestmentIncomeNetAmortizationOfDiscountAndPremium	9500000	USD
CY2019	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	0.0	USD
CY2018	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	15500000	USD
CY2017	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	11400000	USD
CY2019Q1	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	5300000	USD
CY2019Q1	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	7100000	USD
CY2019Q1	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	1800000	USD
CY2019Q4	us-gaap	Equity Securities Fv Ni Cost EquitySecuritiesFvNiCost	20017000	USD
CY2019Q4	blue	Equity Securities Unrealized Gain EquitySecuritiesUnrealizedGain	0	USD
CY2019Q4	blue	Equity Securities Unrealized Loss EquitySecuritiesUnrealizedLoss	7147000	USD
CY2019Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	12870000	USD
CY2019Q4	blue	Marketable Securities Amortized Cost MarketableSecuritiesAmortizedCost	915152000	USD
CY2019Q4	blue	Marketable Securities Unrealized Gains MarketableSecuritiesUnrealizedGains	2838000	USD
CY2019Q4	blue	Marketable Securities Unrealized Loss MarketableSecuritiesUnrealizedLoss	7238000	USD
CY2019Q4	us-gaap	Marketable Securities MarketableSecurities	910752000	USD
CY2018Q4	us-gaap	Equity Securities Fv Ni Cost EquitySecuritiesFvNiCost	20017000	USD
CY2018Q4	blue	Equity Securities Unrealized Gain EquitySecuritiesUnrealizedGain	2150000	USD
CY2018Q4	blue	Equity Securities Unrealized Loss EquitySecuritiesUnrealizedLoss	0	USD
CY2018Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	22167000	USD
CY2018Q4	blue	Marketable Securities Amortized Cost MarketableSecuritiesAmortizedCost	1488746000	USD
CY2018Q4	blue	Marketable Securities Unrealized Gains MarketableSecuritiesUnrealizedGains	3113000	USD
CY2018Q4	blue	Marketable Securities Unrealized Loss MarketableSecuritiesUnrealizedLoss	3011000	USD
CY2018Q4	us-gaap	Marketable Securities MarketableSecurities	1488848000	USD
CY2018Q4	us-gaap	Available For Sale Securities Debt Securities Noncurrent AvailableForSaleSecuritiesDebtSecuritiesNoncurrent	0	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Securities Noncurrent AvailableForSaleSecuritiesDebtSecuritiesNoncurrent	0	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	67200000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	787500000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	79600000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	315300000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	100000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	900000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	100000	USD
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	2100000	USD
CY2018Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	0	USD
CY2019Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	0	USD
CY2019Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	12900000	USD
CY2018Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	22200000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	275798000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	187749000	USD
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	36573000	USD
CY2018Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	29176000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	151176000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	246622000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	13400000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	13400000	USD
CY2017	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	9800000	USD
CY2018Q1	us-gaap	Shares Issued Price Per Share SharesIssuedPricePerShare	185.00
CY2019Q4	blue	Accrued License And Milestone Fees AccruedLicenseAndMilestoneFees	300000	USD
CY2018Q4	blue	Accrued License And Milestone Fees AccruedLicenseAndMilestoneFees	7739000	USD
CY2019Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	54495000	USD
CY2018Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	14520000	USD
CY2019Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	44679000	USD
CY2018Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	28567000	USD
CY2019Q4	blue	Accrued Manufacturing Costs Current AccruedManufacturingCostsCurrent	23126000	USD
CY2018Q4	blue	Accrued Manufacturing Costs Current AccruedManufacturingCostsCurrent	21618000	USD
CY2019Q4	blue	Accrued Clinical And Contract Research Organization Costs Current AccruedClinicalAndContractResearchOrganizationCostsCurrent	16799000	USD
CY2018Q4	blue	Accrued Clinical And Contract Research Organization Costs Current AccruedClinicalAndContractResearchOrganizationCostsCurrent	11891000	USD
CY2019Q4	blue	Accrued Collaboration Research Costs Current AccruedCollaborationResearchCostsCurrent	27142000	USD
CY2018Q4	blue	Accrued Collaboration Research Costs Current AccruedCollaborationResearchCostsCurrent	3358000	USD
CY2019Q4	blue	Accrued Property Plant And Equipment Current AccruedPropertyPlantAndEquipmentCurrent	2354000	USD
CY2018Q1	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	300000	shares
CY2019Q4	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	1827000	USD
CY2018Q4	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	1830000	USD
CY2019Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	0	USD
CY2018Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	1424000	USD
CY2019Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	25329000	USD
CY2018Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	17515000	USD
CY2019Q4	us-gaap	Accrued Liabilities And Other Liabilities AccruedLiabilitiesAndOtherLiabilities	141556000	USD
CY2018Q4	us-gaap	Accrued Liabilities And Other Liabilities AccruedLiabilitiesAndOtherLiabilities	99393000	USD
CY2019Q2	blue	Lessee Operating Lease Annual Rent Increase Percentage LesseeOperatingLeaseAnnualRentIncreasePercentage	0.03
CY2019	us-gaap	Operating Lease Cost OperatingLeaseCost	35346000	USD
CY2019	us-gaap	Lease Cost LeaseCost	35346000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	60566000	USD
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	190987000	USD
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	31026000	USD
CY2019Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P7Y4M24D
CY2019Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0670
CY2019	us-gaap	Operating Lease Expense OperatingLeaseExpense	45300000	USD
CY2018	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	9800000	USD
CY2017	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	9000000.0	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	33257000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	35816000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	31052000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	31540000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	31552000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	88336000	USD
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	251553000	USD
CY2018Q1	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	48700000	USD
CY2019Q4	us-gaap	Purchase Obligation Due In Next Twelve Months PurchaseObligationDueInNextTwelveMonths	129950000	USD
CY2019Q4	us-gaap	Purchase Obligation Due In Second Year PurchaseObligationDueInSecondYear	22597000	USD
CY2019Q4	us-gaap	Purchase Obligation Due In Third Year PurchaseObligationDueInThirdYear	24310000	USD
CY2019Q4	us-gaap	Purchase Obligation Due In Fourth Year PurchaseObligationDueInFourthYear	25040000	USD
CY2019Q4	us-gaap	Purchase Obligation Due In Fifth Year PurchaseObligationDueInFifthYear	46050000	USD
CY2019Q4	us-gaap	Purchase Obligation Due After Fifth Year PurchaseObligationDueAfterFifthYear	0	USD
CY2019Q4	us-gaap	Purchase Obligation PurchaseObligation	247947000	USD
CY2019Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	125000000.0	shares
CY2019Q4	blue	Common Stock Number Of Votes Per Common Share CommonStockNumberOfVotesPerCommonShare	1	vote
CY2019Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	55400000	shares
CY2019Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	55400000	shares
CY2018Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	54700000	shares
CY2018Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	54700000	shares
CY2018Q3	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	600600000	USD
CY2018Q3	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	3900000	shares
CY2018Q3	us-gaap	Shares Issued Price Per Share SharesIssuedPricePerShare	162.50
CY2018Q3	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	400000	shares
CY2018Q3	us-gaap	Shares Issued Price Per Share SharesIssuedPricePerShare	238.10
CY2018Q3	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	100000000.0	USD
CY2018Q3	blue	Common Stock Amount Attributable To Prepayment Of Joint Research Activities CommonStockAmountAttributableToPrepaymentOfJointResearchActivities	45500000	USD
CY2019Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000.0	shares
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CY2019Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2018Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2018Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2019Q4	us-gaap	Common Stock Capital Shares Reserved For Future Issuance CommonStockCapitalSharesReservedForFutureIssuance	8764000	shares
CY2018Q4	us-gaap	Common Stock Capital Shares Reserved For Future Issuance CommonStockCapitalSharesReservedForFutureIssuance	7204000	shares
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	4100000	USD
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	3800000	USD
CY2019Q4	blue	Joint Research Activities Remaining To Be Recognized JointResearchActivitiesRemainingToBeRecognized	38200000	USD
CY2018Q4	blue	Joint Research Activities Remaining To Be Recognized JointResearchActivitiesRemainingToBeRecognized	44000000.0	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	35324000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	20998000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	14326000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	30100000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	16931000	USD
CY2018Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	13169000	USD
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	3800000	USD
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.781
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	138.61
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	5483000	shares
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	4285000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	4285000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	2404000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	522000	USD
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	522000	USD
CY2019Q4	blue	Finite Lived Intangible Assets Amortization Expense Years One Through Five FiniteLivedIntangibleAssetsAmortizationExpenseYearsOneThroughFive	12018000	USD
CY2019Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Other Increases Decreases In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOtherIncreasesDecreasesInPeriod	2200000	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	2200000	shares
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	160600000	USD
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	110800000	USD
CY2017	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	53300000	USD
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.755
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	116.30
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P6Y
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	160629000	USD
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	110836000	USD
CY2017	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	53282000	USD
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	160629000	USD
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	110836000	USD
CY2017	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	53282000	USD
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.707
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P7Y3M18D
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	68511000	USD
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P6Y
CY2017	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P6Y
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.023
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.027
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.021
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.000
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.000
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.000
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	4643000	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	108.56
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	1594000	shares
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	129.76
CY2019	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	354000	shares
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	50.36
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	400000	shares
CY2019	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	0	USD
CY2018	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	0	USD
CY2017	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	0	USD
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	2853000	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	94.77
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P6Y
CY2019Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	64899000	USD
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber	5483000	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice	116.30
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1	P7Y3M18D
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue	68511000	USD
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	83.44
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	125.12
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	62.03
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	29000000.0	USD
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	73100000	USD
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	91000000.0	USD
CY2018	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-52000	USD
CY2017	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	0	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-545000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	187000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-649172000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-440473000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-266236000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-140981000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-114965000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-69197000	USD
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2020 Q1 Form 10-K Financial Statement

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2020 Q1 Form 10-K Financial Statement

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