$ALGN
ALIGN TECHNOLOGY INC Stock $algn

$algn Overview Financials Valuation SEC Filings Company Website

2024 Q1 Form 10-K Financial Statement

#000109714924000011 Filed on February 28, 2024

Income Statement

Concept	2024 Q1	2023 Q4	2023
Revenue	$997.4M	$956.7M	$3.862B
YoY Change	5.76%	6.12%	3.42%
Cost Of Revenue	$299.6M	$287.2M	$1.155B
YoY Change	6.06%	1.19%	4.95%
Gross Profit	$697.8M	$669.5M	$2.707B
YoY Change	5.63%	8.39%	2.78%
Gross Profit Margin	69.96%	69.98%	70.08%
Selling, General & Admin	$451.8M	$402.5M	$1.703B
YoY Change	2.76%	-1.84%	1.73%
% of Gross Profit	64.75%	60.12%	62.93%
Research & Development	$91.86M	$82.16M	$346.8M
YoY Change	5.05%	-1.63%	13.62%
% of Gross Profit	13.16%	12.27%	12.81%
Depreciation & Amortization	$32.95M	$33.70M	$142.4M
YoY Change	-8.02%	0.01%	13.2%
% of Gross Profit	4.72%	5.03%	5.26%
Operating Expenses	$543.7M	$484.7M	$2.050B
YoY Change	3.14%	-1.81%	3.56%
Operating Profit	$154.1M	$184.9M	$656.7M
YoY Change	15.44%	48.94%	0.4%
Interest Expense	$4.392M	$4.978M	$17.26M
YoY Change	87.93%	80.36%	221.56%
% of Operating Profit	2.85%	2.69%	2.63%
Other Income/Expense, Net	-$141.0K	-$3.643M	-$19.39M
YoY Change	-88.53%	3543.0%	-60.35%
Pretax Income	$158.4M	$172.9M	$641.2M
YoY Change	17.65%	49.91%	7.04%
Income Tax	$53.36M	$48.87M	$196.2M
% Of Pretax Income	33.69%	28.27%	30.59%
Net Earnings	$105.0M	$124.0M	$445.1M
YoY Change	19.62%	196.86%	23.09%
Net Earnings / Revenue	10.53%	12.96%	11.52%
Basic Earnings Per Share	$1.40		$5.82
Diluted Earnings Per Share	$1.39	$1.64	$5.81
COMMON SHARES
Basic Shares Outstanding	75.10M shares	76.59M shares	76.43M shares
Diluted Shares Outstanding	75.32M shares		76.57M shares

Balance Sheet

Concept	2024 Q1	2023 Q4	2023
SHORT-TERM ASSETS
Cash & Short-Term Investments	$898.9M	$972.7M	$972.7M
YoY Change	1.68%	-2.69%	-2.69%
Cash & Equivalents	$865.8M	$937.4M	$937.4M
Short-Term Investments	$33.10M	$35.30M	$35.30M
Other Short-Term Assets	$349.6M	$273.6M	$273.6M
YoY Change	38.98%	20.84%	20.84%
Inventory	$280.1M	$296.9M	$296.9M
Prepaid Expenses	$72.19M	$52.49M
Receivables	$950.7M	$903.4M	$903.4M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$2.479B	$2.447B	$2.447B
YoY Change	6.32%	0.92%	0.92%
LONG-TERM ASSETS
Property, Plant & Equipment	$1.401B	$1.409B	$1.409B
YoY Change	1.45%	4.3%	4.3%
Goodwill	$458.2M	$419.5M
YoY Change	10.63%	2.94%
Intangibles	$121.4M	$82.12M
YoY Change	30.12%	-14.21%
Long-Term Investments	$3.619M	$8.022M	$8.022M
YoY Change	-90.32%	-80.89%	-80.89%
Other Assets	$1.692B	$1.719B	$1.719B
YoY Change	2.95%	5.6%	5.6%
Total Long-Term Assets	$3.676B	$3.637B	$3.637B
YoY Change	2.99%	3.23%	3.23%
TOTAL ASSETS
Total Short-Term Assets	$2.479B	$2.447B	$2.447B
Total Long-Term Assets	$3.676B	$3.637B	$3.637B
Total Assets	$6.156B	$6.084B	$6.084B
YoY Change	4.31%	2.29%	2.29%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$117.2M	$113.1M	$113.1M
YoY Change	-10.2%	-11.53%	-11.53%
Accrued Expenses	$496.6M	$525.8M	$525.8M
YoY Change	-0.13%	15.72%	15.72%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$2.023B	$2.067B	$2.067B
YoY Change	0.92%	7.31%	7.31%
LONG-TERM LIABILITIES
Long-Term Debt	$0.00	$0.00	$0.00
YoY Change
Other Long-Term Liabilities	$372.9M	$386.8M	$386.8M
YoY Change	-10.54%	-8.06%	-8.06%
Total Long-Term Liabilities	$372.9M	$386.8M	$386.8M
YoY Change	-10.54%	-8.06%	-8.06%
TOTAL LIABILITIES
Total Short-Term Liabilities	$2.023B	$2.067B	$2.067B
Total Long-Term Liabilities	$372.9M	$386.8M	$386.8M
Total Liabilities	$2.396B	$2.453B	$2.453B
YoY Change	-1.05%	4.55%	4.55%
SHAREHOLDERS EQUITY
Retained Earnings	$2.503B	$2.447B
YoY Change	5.44%	-4.66%
Common Stock	$7.000K	$7.000K
YoY Change	-12.5%	-12.5%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$3.760B	$3.630B	$3.630B
YoY Change
Total Liabilities & Shareholders Equity	$6.156B	$6.084B	$6.084B
YoY Change	4.31%	2.29%	2.29%

Cashflow Statement

Concept	2024 Q1	2023 Q4	2023
OPERATING ACTIVITIES
Net Income	$105.0M	$124.0M	$445.1M
YoY Change	19.62%	196.86%	23.09%
Depreciation, Depletion And Amortization	$32.95M	$33.70M	$142.4M
YoY Change	-8.02%	0.01%	13.2%
Cash From Operating Activities	$28.66M	$46.90M	$785.8M
YoY Change	-85.66%	-67.59%	38.16%
INVESTING ACTIVITIES
Capital Expenditures	$9.369M	$33.42M	$177.7M
YoY Change	-85.39%	-37.19%	-39.12%
Acquisitions	$77.08M		$0.00
YoY Change			-100.0%
Other Investing Activities	$6.000K	-$157.6M	-$278.0K
YoY Change	-200.0%	-46.48%	-99.87%
Cash From Investing Activities	-$79.58M	-$13.32M	-$195.9M
YoY Change	50.64%	-76.13%	-8.14%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-$11.72M	-350.3M	-$598.3M
YoY Change	-95.48%	74.98%	19.27%
NET CHANGE
Cash From Operating Activities	$28.66M	46.90M	$785.8M
Cash From Investing Activities	-$79.58M	-13.32M	-$195.9M
Cash From Financing Activities	-$11.72M	-350.3M	-$598.3M
Net Change In Cash	-$71.64M	-316.7M	-$3.836M
YoY Change	-34.68%	184.58%	-97.38%
FREE CASH FLOW
Cash From Operating Activities	$28.66M	$46.90M	$785.8M
Capital Expenditures	$9.369M	$33.42M	$177.7M
Free Cash Flow	$19.30M	$13.48M	$608.1M
YoY Change	-85.79%	-85.27%	119.65%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2023	algn	Interest Income And Other Income Expense Net InterestIncomeAndOtherIncomeExpenseNet	-2134000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	641204000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	599057000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	196151000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	237484000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	240403000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	445053000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	772020000	usd
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.62
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	9.78
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	9.69
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-458332000	usd
CY2022	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-11514000	usd
CY2021	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-12117000	usd
CY2023	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-3836000	usd
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-157784000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	942355000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1100139000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	961474000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	938519000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	942355000	usd
CY2023	dei	Amendment Flag AmendmentFlag	false
CY2023	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2023	dei	Entity Central Index Key EntityCentralIndexKey	0001097149
CY2022Q4	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#AccruedLiabilitiesCurrent
CY2023Q4	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#AccruedLiabilitiesCurrent
CY2021	us-gaap	Operating Lease Income Comprehensive Income Extensible List OperatingLeaseIncomeComprehensiveIncomeExtensibleList	http://fasb.org/us-gaap/2023#RevenueFromContractWithCustomerExcludingAssessedTax
CY2022	us-gaap	Operating Lease Income Comprehensive Income Extensible List OperatingLeaseIncomeComprehensiveIncomeExtensibleList	http://fasb.org/us-gaap/2023#RevenueFromContractWithCustomerExcludingAssessedTax
CY2023	us-gaap	Operating Lease Income Comprehensive Income Extensible List OperatingLeaseIncomeComprehensiveIncomeExtensibleList	http://fasb.org/us-gaap/2023#RevenueFromContractWithCustomerExcludingAssessedTax
CY2023	dei	Document Annual Report DocumentAnnualReport	true
CY2023	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2023	dei	Document Transition Report DocumentTransitionReport	false
CY2023	dei	Entity File Number EntityFileNumber	000-32259
CY2023	dei	Entity Registrant Name EntityRegistrantName	ALIGN TECHNOLOGY, INC.
CY2023	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2023	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	94-3267295
CY2023	dei	Entity Address Address Line1 EntityAddressAddressLine1	410 North Scottsdale Road, Suite 1300
CY2023	dei	Entity Address City Or Town EntityAddressCityOrTown	Tempe
CY2023	dei	Entity Address State Or Province EntityAddressStateOrProvince	AZ
CY2023	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	85288
CY2023	dei	City Area Code CityAreaCode	(602)
CY2023	dei	Local Phone Number LocalPhoneNumber	742-2000
CY2023	dei	Security12b Title Security12bTitle	Common Stock, $0.0001 par value
CY2023	dei	Trading Symbol TradingSymbol	ALGN
CY2023	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2023	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2023	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2023	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2023	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2023	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2023	dei	Entity Small Business EntitySmallBusiness	false
CY2023	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2023	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2023	dei	Document Fin Stmt Error Correction Flag DocumentFinStmtErrorCorrectionFlag	false
CY2023	dei	Entity Shell Company EntityShellCompany	false
CY2023Q2	dei	Entity Public Float EntityPublicFloat	13700000000	usd
CY2024Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	75104132	shares
CY2023	dei	Auditor Firm AuditorFirmId	238
CY2023	dei	Auditor Name AuditorName	PricewaterhouseCoopers LLP
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	942050000	usd
CY2023	dei	Auditor Location AuditorLocation	San Jose, California
CY2023	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3862260000	usd
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3734635000	usd
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3952584000	usd
CY2023	us-gaap	Cost Of Revenue CostOfRevenue	1155397000	usd
CY2022	us-gaap	Cost Of Revenue CostOfRevenue	1100860000	usd
CY2021	us-gaap	Cost Of Revenue CostOfRevenue	1017229000	usd
CY2023	us-gaap	Gross Profit GrossProfit	2706863000	usd
CY2022	us-gaap	Gross Profit GrossProfit	2633775000	usd
CY2021	us-gaap	Gross Profit GrossProfit	2935355000	usd
CY2023	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	1703379000	usd
CY2022	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	1674469000	usd
CY2021	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	1708640000	usd
CY2023	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	346830000	usd
CY2022	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	305258000	usd
CY2021	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	250315000	usd
CY2023	algn	Restructuring Charges And Other Operating Expenses RestructuringChargesAndOtherOperatingExpenses	13316000	usd
CY2022	algn	Restructuring Charges And Other Operating Expenses RestructuringChargesAndOtherOperatingExpenses	11453000	usd
CY2021	algn	Restructuring Charges And Other Operating Expenses RestructuringChargesAndOtherOperatingExpenses	0	usd
CY2022	us-gaap	Operating Expenses OperatingExpenses	1991180000	usd
CY2021	us-gaap	Operating Expenses OperatingExpenses	1958955000	usd
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	976400000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	361573000	usd
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	5.82
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	5.81
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.61
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	76426000	shares
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	78190000	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	78917000	shares
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	76568000	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	78420000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	79670000	shares
CY2023	us-gaap	Net Income Loss NetIncomeLoss	445053000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	361573000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	772020000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	28419000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-11480000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-38680000	usd
CY2023	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	3033000	usd
CY2022	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-3130000	usd
CY2021	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-495000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	31452000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-14610000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-39175000	usd
CY2023	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	476505000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	346963000	usd
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	732845000	usd
CY2023Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	937438000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Securities Current AvailableForSaleSecuritiesDebtSecuritiesCurrent	35304000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Securities Current AvailableForSaleSecuritiesDebtSecuritiesCurrent	57534000	usd
CY2023Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	14893000	usd
CY2022Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	10343000	usd
CY2023Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	903424000	usd
CY2022Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	859685000	usd
CY2023Q4	us-gaap	Inventory Net InventoryNet	296902000	usd
CY2022Q4	us-gaap	Inventory Net InventoryNet	338752000	usd
CY2023Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	273550000	usd
CY2022Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	226370000	usd
CY2023Q4	us-gaap	Assets Current AssetsCurrent	2446618000	usd
CY2022Q4	us-gaap	Assets Current AssetsCurrent	2424391000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Securities Noncurrent AvailableForSaleSecuritiesDebtSecuritiesNoncurrent	8022000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Securities Noncurrent AvailableForSaleSecuritiesDebtSecuritiesNoncurrent	41978000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1290863000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1231855000	usd
CY2023Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	117999000	usd
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	118880000	usd
CY2023Q4	us-gaap	Goodwill Goodwill	419530000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	407551000	usd
CY2023Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	82118000	usd
CY2022Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	95720000	usd
CY2023Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	1590045000	usd
CY2022Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	1571746000	usd
CY2023Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	128682000	usd
CY2022Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	55826000	usd
CY2023Q4	us-gaap	Assets Assets	6083877000	usd
CY2022Q4	us-gaap	Assets Assets	5947947000	usd
CY2023Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	113125000	usd
CY2022Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	127870000	usd
CY2023Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	525780000	usd
CY2022Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	454374000	usd
CY2023Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	1427706000	usd
CY2022Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	1343643000	usd
CY2023Q4	us-gaap	Liabilities Current LiabilitiesCurrent	2066611000	usd
CY2022Q4	us-gaap	Liabilities Current LiabilitiesCurrent	1925887000	usd
CY2023Q4	us-gaap	Accrued Income Taxes Noncurrent AccruedIncomeTaxesNoncurrent	116744000	usd
CY2022Q4	us-gaap	Accrued Income Taxes Noncurrent AccruedIncomeTaxesNoncurrent	124393000	usd
CY2023Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	96968000	usd
CY2022Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	100334000	usd
CY2023Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	173065000	usd
CY2022Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	195975000	usd
CY2023Q4	us-gaap	Liabilities Liabilities	2453388000	usd
CY2022Q4	us-gaap	Liabilities Liabilities	2346589000	usd
CY2023Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2022Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2023Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.0001
CY2022Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.0001
CY2022Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000	shares
CY2023Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000	shares
CY2022Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2023Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2023Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	usd
CY2022Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	usd
CY2022Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.0001
CY2023Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.0001
CY2023Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	200000000	shares
CY2022Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	200000000	shares
CY2023Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	75075000	shares
CY2023Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	75075000	shares
CY2022Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	77267000	shares
CY2022Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	77267000	shares
CY2023Q4	us-gaap	Common Stock Value CommonStockValue	7000	usd
CY2022Q4	us-gaap	Common Stock Value CommonStockValue	8000	usd
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CY2022Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	1044946000	usd
CY2023Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	21168000	usd
CY2022Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-10284000	usd
CY2023Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	2447174000	usd
CY2022Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	2566688000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	3630489000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	3601358000	usd
CY2023Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	6083877000	usd
CY2022Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	5947947000	usd
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	3233865000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	772020000	usd
CY2021	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-495000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-38680000	usd
CY2021	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	25623000	usd
CY2021	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	108917000	usd
CY2021	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	375038000	usd
CY2021	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	114336000	usd
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	3622714000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	361573000	usd
CY2022	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	-3130000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-11480000	usd
CY2022	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	26149000	usd
CY2022	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	52799000	usd
CY2022	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	435036000	usd
CY2022	algn	Adjustments To Additional Paid In Capital Accelerated Repurchase Agreement Remaining Contract Value AdjustmentsToAdditionalPaidInCapitalAcceleratedRepurchaseAgreementRemainingContractValue	40000000	usd
CY2022	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	133367000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	3601358000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	445053000	usd
CY2023	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	3033000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	28419000	usd
CY2023	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	26595000	usd
CY2023	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	22575000	usd
CY2023	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	595420000	usd
CY2023	algn	Adjustments To Additional Paid In Capital Accelerated Repurchase Agreement Remaining Contract Value AdjustmentsToAdditionalPaidInCapitalAcceleratedRepurchaseAgreementRemainingContractValue	10000000	usd
CY2023	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	154026000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	3630489000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	361573000	usd
CY2023	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-18642000	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-39495000	usd
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	15455000	usd
CY2023	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	142401000	usd
CY2022	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	125793000	usd
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	108729000	usd
CY2023	us-gaap	Share Based Compensation ShareBasedCompensation	154026000	usd
CY2022	us-gaap	Share Based Compensation ShareBasedCompensation	133367000	usd
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	114336000	usd
CY2023	us-gaap	Operating Lease Right Of Use Asset Amortization Expense OperatingLeaseRightOfUseAssetAmortizationExpense	33107000	usd
CY2022	us-gaap	Operating Lease Right Of Use Asset Amortization Expense OperatingLeaseRightOfUseAssetAmortizationExpense	30520000	usd
CY2021	us-gaap	Operating Lease Right Of Use Asset Amortization Expense OperatingLeaseRightOfUseAssetAmortizationExpense	26807000	usd
CY2023	us-gaap	Equity Securities Without Readily Determinable Fair Value Impairment Loss Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount	4990000	usd
CY2022	us-gaap	Equity Securities Without Readily Determinable Fair Value Impairment Loss Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount	0	usd
CY2021	us-gaap	Equity Securities Without Readily Determinable Fair Value Impairment Loss Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount	0	usd
CY2023	us-gaap	Gain Loss Related To Litigation Settlement GainLossRelatedToLitigationSettlement	0	usd
CY2022	us-gaap	Gain Loss Related To Litigation Settlement GainLossRelatedToLitigationSettlement	0	usd
CY2021	us-gaap	Gain Loss Related To Litigation Settlement GainLossRelatedToLitigationSettlement	43403000	usd
CY2023	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-32733000	usd
CY2022	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-41288000	usd
CY2021	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-24363000	usd
CY2023	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	104614000	usd
CY2022	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-21549000	usd
CY2021	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	262066000	usd
CY2023	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-30169000	usd
CY2022	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	130097000	usd
CY2021	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	112450000	usd
CY2023	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	51013000	usd
CY2022	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	65514000	usd
CY2021	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	124626000	usd
CY2023	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-7703000	usd
CY2022	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-36523000	usd
CY2021	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	19747000	usd
CY2023	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	46327000	usd
CY2022	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	-121942000	usd
CY2021	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	158543000	usd
CY2023	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-7772000	usd
CY2022	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	6327000	usd
CY2021	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	12449000	usd
CY2023	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	86714000	usd
CY2022	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	241886000	usd
CY2021	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	462640000	usd
CY2023	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	785776000	usd
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	568732000	usd
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1172544000	usd
CY2023	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	usd
CY2022	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	12304000	usd
CY2021	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	8002000	usd
CY2023	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	177716000	usd
CY2022	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	291900000	usd
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	401098000	usd
CY2023	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	2910000	usd
CY2022	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	28002000	usd
CY2021	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	200928000	usd
CY2023	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	55170000	usd
CY2022	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	23785000	usd
CY2021	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	498000	usd
CY2023	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	6234000	usd
CY2022	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	97316000	usd
CY2021	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	3114000	usd
CY2023	us-gaap	Proceeds From Collection Of Notes Receivable ProceedsFromCollectionOfNotesReceivable	0	usd
CY2022	us-gaap	Proceeds From Collection Of Notes Receivable ProceedsFromCollectionOfNotesReceivable	0	usd
CY2021	us-gaap	Proceeds From Collection Of Notes Receivable ProceedsFromCollectionOfNotesReceivable	4594000	usd
CY2023	algn	Proceeds From Litigation Settlement Investing Activities ProceedsFromLitigationSettlementInvestingActivities	0	usd
CY2022	algn	Proceeds From Litigation Settlement Investing Activities ProceedsFromLitigationSettlementInvestingActivities	0	usd
CY2021	algn	Proceeds From Litigation Settlement Investing Activities ProceedsFromLitigationSettlementInvestingActivities	43403000	usd
CY2023	algn	Payments To Acquire Equity Securities PaymentsToAcquireEquitySecurities	76999000	usd
CY2022	algn	Payments To Acquire Equity Securities PaymentsToAcquireEquitySecurities	0	usd
CY2021	algn	Payments To Acquire Equity Securities PaymentsToAcquireEquitySecurities	0	usd
CY2023	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-278000	usd
CY2022	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	2211000	usd
CY2021	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	5011000	usd
CY2023	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-195943000	usd
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-213316000	usd
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-563430000	usd
CY2023	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	26595000	usd
CY2022	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	26149000	usd
CY2021	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	25623000	usd
CY2023	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	592360000	usd
CY2022	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	435036000	usd
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	375038000	usd
CY2023	algn	Payments For Proceeds From For Equity Forward Contract Financing Activities PaymentsForProceedsFromForEquityForwardContractFinancingActivities	10000000	usd
CY2022	algn	Payments For Proceeds From For Equity Forward Contract Financing Activities PaymentsForProceedsFromForEquityForwardContractFinancingActivities	40000000	usd
CY2021	algn	Payments For Proceeds From For Equity Forward Contract Financing Activities PaymentsForProceedsFromForEquityForwardContractFinancingActivities	0	usd
CY2023	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	22575000	usd
CY2022	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	52799000	usd
CY2021	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	108917000	usd
CY2023	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-598340000	usd
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-501686000	usd
CY2023	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	4671000	usd
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	138665000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1100139000	usd
CY2023	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	2	segment
CY2022Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	99512000	usd
CY2023	us-gaap	Use Of Estimates UseOfEstimates	<div style="text-align:justify;text-indent:18pt"><span style="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"><span><br/></span></div><div style="text-align:justify;text-indent:22.5pt"><span style="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 amounts reported in our consolidated financial statements and accompanying notes. Actual results could differ materially from those estimates. On an ongoing basis, we evaluate our estimates, including those related to revenue recognition, useful lives of intangible assets and property, plant and equipment, goodwill, income taxes, contingent liabilities, deferred revenues, the fair values of financial instruments, stock-based compensation and the valuation of investments in privately held companies among others. We base our estimates on historical experience and on various other assumptions that are believed to be reasonable, the results of which form the basis for making judgments about the carrying values of assets and liabilities.</span></div><div style="text-align:justify;text-indent:22.5pt"><span><br/></span></div><div style="text-align:justify;text-indent:22.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In September 2023, we completed an assessment of the useful lives of certain manufacturing equipment used in cutting, forming, assembling and scanning. We adjusted the estimated useful life from ten (10) years to thirteen (13) years. This change in accounting estimate was effective beginning September 2023. These updated useful lives were applied to applicable assets in service as of the date of change and will be applied prospectively as assets are placed in service. Based on the carrying amount of the assets recorded in our property, plant and equipment, net balance prior to the change, the effect of this change in estimate for fiscal year 2023 was a reduction in depreciation expense of approximately $5.4 million and an increase in net income of $3.7 million, or $0.05 per share basic and diluted, for the year ended December 31, 2023.</span></div>
CY2023	algn	Debt Securities Maximum Effective Maturity Period DebtSecuritiesMaximumEffectiveMaturityPeriod	P40M
CY2023	us-gaap	Foreign Currency Transaction Gain Loss Realized ForeignCurrencyTransactionGainLossRealized	-7000000.0	usd
CY2022	us-gaap	Foreign Currency Transaction Gain Loss Realized ForeignCurrencyTransactionGainLossRealized	-43800000	usd
CY2021	us-gaap	Foreign Currency Transaction Gain Loss Realized ForeignCurrencyTransactionGainLossRealized	-13300000	usd
CY2023	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div style="text-align:justify;text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Certain Risks and Uncertainties</span></div><div style="text-align:justify;text-indent:22.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We are subject to risks including, but not limited to, global and regional economic market conditions, inflation, fluctuations in foreign currency exchange rates, changes in consumer confidence and demand, increased competition, dependence on key personnel, protection and litigation of proprietary technology, shifts in taxable income between tax jurisdictions and compliance with regulations of the U.S. Food and Drug Administration (“FDA”) and similar international agencies. Further, our operations globally, particularly in prior years, have been impacted by the COVID-19 pandemic. </span></div><div style="text-align:justify;text-indent:22.5pt"><span><br/></span></div><div style="text-align:justify;text-indent:22.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:115%">Our cash and investments are held primarily by five financial institutions. Financial instruments which potentially expose us to concentrations of credit risk consist primarily of cash equivalents and marketable securities. We invest excess cash primarily in money market funds, corporate bonds, asset-backed securities, municipal and U.S. government agency bonds and treasury bonds and periodically evaluate them for credit losses. Such credit losses have not been material to our financial statements. </span></div><div style="text-align:justify;text-indent:22.5pt"><span><br/></span></div><div style="text-align:justify;text-indent:22.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We purchase certain inventory from sole suppliers. Additionally, we rely on a limited number of hardware manufacturers. The inability of any supplier or manufacturer to fulfill our supply requirements could materially and adversely impact our future operating results.</span></div>
CY2023	us-gaap	Accounts Receivable Sale AccountsReceivableSale	51200000	usd
CY2022	us-gaap	Accounts Receivable Sale AccountsReceivableSale	37000000	usd
CY2023Q4	us-gaap	Capitalized Contract Cost Net CapitalizedContractCostNet	25100000	usd
CY2022Q4	us-gaap	Capitalized Contract Cost Net CapitalizedContractCostNet	27400000	usd
CY2023	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	12500000	usd
CY2022	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	20800000	usd
CY2021	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	17000000	usd
CY2023Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	1578300000	usd
CY2022Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	1515400000	usd
CY2021Q1	us-gaap	Litigation Settlement Amount Awarded From Other Party LitigationSettlementAmountAwardedFromOtherParty	43400000	usd
CY2021	us-gaap	Gain Loss Related To Litigation Settlement GainLossRelatedToLitigationSettlement	43400000	usd
CY2023	us-gaap	Advertising Expense AdvertisingExpense	201200000	usd
CY2022	us-gaap	Advertising Expense AdvertisingExpense	222000000	usd
CY2021	us-gaap	Advertising Expense AdvertisingExpense	325600000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	43326000	usd
CY2023Q4	algn	Cash And Cash Equivalents And Debt Securities Available For Sale Amortized Cost CashAndCashEquivalentsAndDebtSecuritiesAvailableForSaleAmortizedCost	981569000	usd
CY2023Q4	algn	Cash And Cash Equivalents And Debt Securities Available For Sale Gross Unrealized Gain CashAndCashEquivalentsAndDebtSecuritiesAvailableForSaleGrossUnrealizedGain	7000	usd
CY2023Q4	algn	Cash And Cash Equivalents And Debt Securities Available For Sale Gross Unrealized Loss CashAndCashEquivalentsAndDebtSecuritiesAvailableForSaleGrossUnrealizedLoss	812000	usd
CY2023Q4	algn	Cash And Cash Equivalents And Debt Securities Available For Sale CashAndCashEquivalentsAndDebtSecuritiesAvailableForSale	980764000	usd
CY2022Q4	algn	Cash And Cash Equivalents And Debt Securities Available For Sale Amortized Cost CashAndCashEquivalentsAndDebtSecuritiesAvailableForSaleAmortizedCost	1045191000	usd
CY2022Q4	algn	Cash And Cash Equivalents And Debt Securities Available For Sale Gross Unrealized Gain CashAndCashEquivalentsAndDebtSecuritiesAvailableForSaleGrossUnrealizedGain	2000	usd
CY2022Q4	algn	Cash And Cash Equivalents And Debt Securities Available For Sale Gross Unrealized Loss CashAndCashEquivalentsAndDebtSecuritiesAvailableForSaleGrossUnrealizedLoss	3631000	usd
CY2022Q4	algn	Cash And Cash Equivalents And Debt Securities Available For Sale CashAndCashEquivalentsAndDebtSecuritiesAvailableForSale	1041562000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	34617000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	51037000	usd
CY2023Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	8709000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	48475000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	7065000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	23000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	32612000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	789000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	39677000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	812000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	21554000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	639000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	74205000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	2992000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	95759000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	3631000	usd
CY2023Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	93082000	usd
CY2022Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	328641000	usd
CY2023Q4	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	145492000	usd
CY2022Q4	us-gaap	Inventory Raw Materials Net Of Reserves InventoryRawMaterialsNetOfReserves	172758000	usd
CY2023Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	91259000	usd
CY2022Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	96558000	usd
CY2023Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	60151000	usd
CY2022Q4	us-gaap	Inventory Finished Goods Net Of Reserves InventoryFinishedGoodsNetOfReserves	69436000	usd
CY2023Q4	us-gaap	Inventory Net InventoryNet	296902000	usd
CY2022Q4	us-gaap	Inventory Net InventoryNet	338752000	usd
CY2023Q4	us-gaap	Value Added Tax Receivable Current ValueAddedTaxReceivableCurrent	143728000	usd
CY2022Q4	us-gaap	Value Added Tax Receivable Current ValueAddedTaxReceivableCurrent	140484000	usd
CY2023Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	52487000	usd
CY2022Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	69124000	usd
CY2023Q4	us-gaap	Other Assets Current OtherAssetsCurrent	77335000	usd
CY2022Q4	us-gaap	Other Assets Current OtherAssetsCurrent	16762000	usd
CY2023Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	273550000	usd
CY2022Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	226370000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	1841625000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	1681581000	usd
CY2023Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	550762000	usd
CY2022Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	449726000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1290863000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	1231855000	usd
CY2023	us-gaap	Depreciation Depreciation	126000000	usd
CY2022	us-gaap	Depreciation Depreciation	109800000	usd
CY2021	us-gaap	Depreciation Depreciation	92100000	usd
CY2023Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	220862000	usd
CY2022Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	149508000	usd
CY2023Q4	us-gaap	Other Sundry Liabilities Current OtherSundryLiabilitiesCurrent	71109000	usd
CY2022Q4	us-gaap	Other Sundry Liabilities Current OtherSundryLiabilitiesCurrent	64341000	usd
CY2023Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	38103000	usd
CY2022Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	74323000	usd
CY2023Q4	us-gaap	Accrued Marketing Costs Current AccruedMarketingCostsCurrent	34035000	usd
CY2022Q4	us-gaap	Accrued Marketing Costs Current AccruedMarketingCostsCurrent	36407000	usd
CY2023Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	29651000	usd
CY2022Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	26574000	usd
CY2023Q4	algn	Accrued Fixed Assets Current AccruedFixedAssetsCurrent	23618000	usd
CY2022Q4	algn	Accrued Fixed Assets Current AccruedFixedAssetsCurrent	19922000	usd
CY2023Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	108402000	usd
CY2022Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	83299000	usd
CY2023Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	525780000	usd
CY2022Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	454374000	usd
CY2021Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	16169000	usd
CY2022	us-gaap	Standard Product Warranty Accrual Warranties Issued StandardProductWarrantyAccrualWarrantiesIssued	16429000	usd
CY2022	us-gaap	Standard Product Warranty Accrual Payments StandardProductWarrantyAccrualPayments	14725000	usd
CY2022Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	17873000	usd
CY2023	us-gaap	Standard Product Warranty Accrual Warranties Issued StandardProductWarrantyAccrualWarrantiesIssued	18248000	usd
CY2023	us-gaap	Standard Product Warranty Accrual Payments StandardProductWarrantyAccrualPayments	13695000	usd
CY2023Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	22426000	usd
CY2023Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	1427706000	usd
CY2022Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	1343643000	usd
CY2023Q4	us-gaap	Deferred Revenue Noncurrent DeferredRevenueNoncurrent	138000000	usd
CY2022Q4	us-gaap	Deferred Revenue Noncurrent DeferredRevenueNoncurrent	160662000	usd
CY2023	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3862300000	usd
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3734600000	usd
CY2023	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	732400000	usd
CY2022	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	635300000	usd
CY2023	us-gaap	Operating Lease Cost OperatingLeaseCost	44614000	usd
CY2022	us-gaap	Operating Lease Cost OperatingLeaseCost	37919000	usd
CY2021	us-gaap	Operating Lease Cost OperatingLeaseCost	33241000	usd
CY2023	us-gaap	Variable Lease Cost VariableLeaseCost	16013000	usd
CY2022	us-gaap	Variable Lease Cost VariableLeaseCost	22084000	usd
CY2021	us-gaap	Variable Lease Cost VariableLeaseCost	11134000	usd
CY2023	us-gaap	Lease Cost LeaseCost	60627000	usd
CY2022	us-gaap	Lease Cost LeaseCost	60003000	usd
CY2021	us-gaap	Lease Cost LeaseCost	44375000	usd
CY2023Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P6Y2M12D
CY2022Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P7Y2M12D
CY2023Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.037
CY2022Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.035
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	33838000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	28381000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	22449000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	16933000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	12746000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	25901000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	140248000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	13629000	usd
CY2023Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	126619000	usd
CY2023Q4	algn	Lessee Lease Not Yet Commenced Amount LesseeLeaseNotYetCommencedAmount	13300000	usd
CY2023Q4	us-gaap	Property Subject To Or Available For Operating Lease Gross PropertySubjectToOrAvailableForOperatingLeaseGross	27145000	usd
CY2022Q4	us-gaap	Property Subject To Or Available For Operating Lease Gross PropertySubjectToOrAvailableForOperatingLeaseGross	22914000	usd
CY2023Q4	us-gaap	Property Subject To Or Available For Operating Lease Accumulated Depreciation PropertySubjectToOrAvailableForOperatingLeaseAccumulatedDepreciation	9815000	usd
CY2022Q4	us-gaap	Property Subject To Or Available For Operating Lease Accumulated Depreciation PropertySubjectToOrAvailableForOperatingLeaseAccumulatedDepreciation	3919000	usd
CY2023Q4	us-gaap	Property Subject To Or Available For Operating Lease Net PropertySubjectToOrAvailableForOperatingLeaseNet	17330000	usd
CY2022Q4	us-gaap	Property Subject To Or Available For Operating Lease Net PropertySubjectToOrAvailableForOperatingLeaseNet	18995000	usd
CY2023Q4	us-gaap	Lessor Operating Lease Payments To Be Received Next Twelve Months LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths	22737000	usd
CY2023Q4	us-gaap	Lessor Operating Lease Payments To Be Received Two Years LessorOperatingLeasePaymentsToBeReceivedTwoYears	18170000	usd
CY2023Q4	us-gaap	Lessor Operating Lease Payments To Be Received Three Years LessorOperatingLeasePaymentsToBeReceivedThreeYears	8908000	usd
CY2023Q4	us-gaap	Lessor Operating Lease Payments To Be Received LessorOperatingLeasePaymentsToBeReceived	49815000	usd
CY2023	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	16600000	usd
CY2022	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	12300000	usd
CY2021	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	0	usd
CY2021Q4	us-gaap	Goodwill Goodwill	418547000	usd
CY2022	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	8729000	usd
CY2022	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	-19725000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	407551000	usd
CY2023	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	11979000	usd
CY2023Q4	us-gaap	Goodwill Goodwill	419530000	usd
CY2023	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2022	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	156662000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	67081000	usd
CY2023Q4	algn	Finite Lived Intangible Assets Accumulated Impairment Loss FiniteLivedIntangibleAssetsAccumulatedImpairmentLoss	8450000	usd
CY2023Q4	algn	Finite Lived Intangible Assets Net Before Foreign Currency Translation Gain Loss FiniteLivedIntangibleAssetsNetBeforeForeignCurrencyTranslationGainLoss	81131000	usd
CY2023Q4	algn	Finite Lived Intangible Assets Foreign Currency Translation Gain Loss1 FiniteLivedIntangibleAssetsForeignCurrencyTranslationGainLoss1	987000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	82118000	usd
CY2023Q4	algn	Finite Lived Intangible Assets Fully Amortized FiniteLivedIntangibleAssetsFullyAmortized	34300000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	157262000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	51180000	usd
CY2022Q4	algn	Finite Lived Intangible Assets Accumulated Impairment Loss FiniteLivedIntangibleAssetsAccumulatedImpairmentLoss	8450000	usd
CY2022Q4	algn	Finite Lived Intangible Assets Net Before Foreign Currency Translation Gain Loss FiniteLivedIntangibleAssetsNetBeforeForeignCurrencyTranslationGainLoss	97632000	usd
CY2022Q4	algn	Finite Lived Intangible Assets Foreign Currency Translation Gain Loss1 FiniteLivedIntangibleAssetsForeignCurrencyTranslationGainLoss1	-1912000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	95720000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	15335000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	14959000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	14353000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	11992000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	10890000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	13602000	usd
CY2023Q4	algn	Finite Lived Intangible Assets Net Before Foreign Currency Translation Gain Loss FiniteLivedIntangibleAssetsNetBeforeForeignCurrencyTranslationGainLoss	81131000	usd
CY2023	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	16400000	usd
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	16000000	usd
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	16600000	usd
CY2019Q1	us-gaap	Loss Contingency New Claims Filed Number LossContingencyNewClaimsFiledNumber	3	claim
CY2022Q4	us-gaap	Litigation Settlement Amount Awarded From Other Party LitigationSettlementAmountAwardedFromOtherParty	63000000	usd
CY2023Q3	us-gaap	Litigation Settlement Amount Awarded From Other Party LitigationSettlementAmountAwardedFromOtherParty	63000000	usd
CY2023Q3	us-gaap	Litigation Settlement Amount Awarded From Other Party LitigationSettlementAmountAwardedFromOtherParty	63000000	usd
CY2023Q3	us-gaap	Loss Contingency Damages Sought Value LossContingencyDamagesSoughtValue	27000000	usd
CY2023Q4	us-gaap	Loss Contingency Estimate Of Possible Loss LossContingencyEstimateOfPossibleLoss	100000000	usd
CY2023	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	154026000	usd
CY2022	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	133367000	usd
CY2021	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	114336000	usd
CY2023	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	17100000	usd
CY2022	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	14900000	usd
CY2021	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	13800000	usd
CY2023	us-gaap	Stock Issued During Period Shares Employee Stock Purchase Plans StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans	114000000	shares
CY2022	us-gaap	Stock Issued During Period Shares Employee Stock Purchase Plans StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans	86000	shares
CY2021	us-gaap	Stock Issued During Period Shares Employee Stock Purchase Plans StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans	131000	shares
CY2023	algn	Stock Issued During Period Employee Stock Purchase Plan Weighted Average Price StockIssuedDuringPeriodEmployeeStockPurchasePlanWeightedAveragePrice	234.19
CY2022	algn	Stock Issued During Period Employee Stock Purchase Plan Weighted Average Price StockIssuedDuringPeriodEmployeeStockPurchasePlanWeightedAveragePrice	305.24
CY2021	algn	Stock Issued During Period Employee Stock Purchase Plan Weighted Average Price StockIssuedDuringPeriodEmployeeStockPurchasePlanWeightedAveragePrice	195.44
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	315643000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	268097000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	378478000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	325561000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	330960000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	633945000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	641204000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	599057000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	1012423000	usd
CY2023	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	134332000	usd
CY2022	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	188050000	usd
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	157383000	usd
CY2023	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-16805000	usd
CY2022	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-55579000	usd
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-25598000	usd
CY2023	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	117527000	usd
CY2022	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	132471000	usd
CY2021	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	131785000	usd
CY2023	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	28535000	usd
CY2022	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	34621000	usd
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	28365000	usd
CY2023	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-3157000	usd
CY2022	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-12265000	usd
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-5860000	usd
CY2023	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	25378000	usd
CY2022	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	22356000	usd
CY2021	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	22505000	usd
CY2023	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	51306000	usd
CY2022	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	56537000	usd
CY2021	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	42681000	usd
CY2023	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	1940000	usd
CY2022	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	26120000	usd
CY2021	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	43432000	usd
CY2023	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	53246000	usd
CY2022	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	82657000	usd
CY2021	us-gaap	Foreign Income Tax Expense Benefit Continuing Operations ForeignIncomeTaxExpenseBenefitContinuingOperations	86113000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	196151000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	237484000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	240403000	usd
CY2023	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2022	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2023	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.029
CY2022	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.037
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CY2023	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0.030
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0.021
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CY2022	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements EffectiveIncomeTaxRateReconciliationTaxSettlements	0.019
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements EffectiveIncomeTaxRateReconciliationTaxSettlements	0
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.013
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.017
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.011
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.002
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.003
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.008
CY2023	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.306
CY2022	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.396
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.237
CY2023Q4	algn	Deferred Tax Assets Net Operating And Capital Loss Carryforwards DeferredTaxAssetsNetOperatingAndCapitalLossCarryforwards	1389000	usd
CY2022Q4	algn	Deferred Tax Assets Net Operating And Capital Loss Carryforwards DeferredTaxAssetsNetOperatingAndCapitalLossCarryforwards	15380000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals	62891000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals	32759000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	25054000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	19469000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	142082000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	117039000	usd
CY2023Q4	us-gaap	Deferred Tax Assets In Process Research And Development DeferredTaxAssetsInProcessResearchAndDevelopment	41505000	usd
CY2022Q4	us-gaap	Deferred Tax Assets In Process Research And Development DeferredTaxAssetsInProcessResearchAndDevelopment	54293000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Goodwill And Intangible Assets DeferredTaxAssetsGoodwillAndIntangibleAssets	1325236000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Goodwill And Intangible Assets DeferredTaxAssetsGoodwillAndIntangibleAssets	1350434000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	13228000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	16645000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	1611385000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	1606019000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	14991000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	23286000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	1596394000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	1582733000	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	7814000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	11407000	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	25097000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	26008000	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	3570000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	3438000	usd
CY2023Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	36481000	usd
CY2022Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	40853000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	1559913000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	1541880000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	15000000	usd
CY2023	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	-8300000	usd
CY2022Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	141560000	usd
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	63295000	usd
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	46320000	usd
CY2023	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	8616000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	84249000	usd
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	27710000	usd
CY2023	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	5647000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	15411000	usd
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	5471000	usd
CY2023	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	533000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	2647000	usd
CY2021	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	5804000	usd
CY2023	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	3654000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	4582000	usd
CY2021	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	8986000	usd
CY2023	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	2464000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	14166000	usd
CY2021	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	1416000	usd
CY2023Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	149172000	usd
CY2022Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	141560000	usd
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	63295000	usd
CY2023Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	149200000	usd
CY2023Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	140000000	usd
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CY2022	us-gaap	Net Income Loss NetIncomeLoss	361573000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	772020000	usd
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	76426000	shares
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	78190000	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	78917000	shares
CY2023	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	142000	shares
CY2022	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	230000	shares
CY2021	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	753000	shares
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	76568000	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	78420000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	79670000	shares
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CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.62
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	9.78
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CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.61
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CY2023	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	293000	shares
CY2022	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	320000	shares
CY2021	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	1000	shares
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CY2023	us-gaap	Income Taxes Paid IncomeTaxesPaid	294569000	usd
CY2022	us-gaap	Income Taxes Paid IncomeTaxesPaid	231884000	usd
CY2021	us-gaap	Income Taxes Paid IncomeTaxesPaid	203309000	usd
CY2023	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	32280000	usd
CY2022	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	35767000	usd
CY2021	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	64135000	usd
CY2023	algn	Noncash Stock Repurchase NoncashStockRepurchase	40000000	usd
CY2022	algn	Noncash Stock Repurchase NoncashStockRepurchase	0	usd
CY2021	algn	Noncash Stock Repurchase NoncashStockRepurchase	0	usd
CY2023	us-gaap	Operating Lease Payments OperatingLeasePayments	33714000	usd
CY2022	us-gaap	Operating Lease Payments OperatingLeasePayments	31015000	usd
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	29769000	usd
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CY2022	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	34144000	usd
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	68463000	usd
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CY2023	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3862260000	usd
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3734635000	usd
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3952584000	usd
CY2023	us-gaap	Gross Profit GrossProfit	2706863000	usd
CY2022	us-gaap	Gross Profit GrossProfit	2633775000	usd
CY2021	us-gaap	Gross Profit GrossProfit	2935355000	usd
CY2023	us-gaap	Operating Income Loss OperatingIncomeLoss	643338000	usd
CY2022	us-gaap	Operating Income Loss OperatingIncomeLoss	642595000	usd
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	976400000	usd
CY2023	us-gaap	Share Based Compensation ShareBasedCompensation	154026000	usd
CY2022	us-gaap	Share Based Compensation ShareBasedCompensation	133367000	usd
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	114336000	usd
CY2023	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	142401000	usd
CY2022	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	125793000	usd
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	108729000	usd
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CY2022	us-gaap	Operating Income Loss OperatingIncomeLoss	642595000	usd
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CY2023	us-gaap	Interest Income Other InterestIncomeOther	17258000	usd
CY2022	us-gaap	Interest Income Other InterestIncomeOther	5367000	usd
CY2021	us-gaap	Interest Income Other InterestIncomeOther	3103000	usd
CY2023	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-19392000	usd
CY2022	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-48905000	usd
CY2021	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	32920000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	599057000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	1012423000	usd
CY2023	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3862260000	usd
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CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3952584000	usd
CY2023Q4	us-gaap	Noncurrent Assets NoncurrentAssets	1408862000	usd
CY2022Q4	us-gaap	Noncurrent Assets NoncurrentAssets	1350735000	usd
CY2023	us-gaap	Restructuring Charges RestructuringCharges	14000000.0	usd
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CY2022	us-gaap	Restructuring Charges RestructuringCharges	10176000	usd
CY2022	us-gaap	Payments For Restructuring PaymentsForRestructuring	4807000	usd
CY2022	us-gaap	Restructuring Reserve Settled Without Cash2 RestructuringReserveSettledWithoutCash2	1453000	usd
CY2022Q4	us-gaap	Restructuring Reserve RestructuringReserve	3916000	usd
CY2023	us-gaap	Restructuring Charges RestructuringCharges	13989000	usd
CY2023	us-gaap	Payments For Restructuring PaymentsForRestructuring	12606000	usd
CY2023Q4	us-gaap	Restructuring Reserve RestructuringReserve	5299000	usd
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Files In Submission

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ALIGN TECHNOLOGY INC Stock $algn

2024 Q1 Form 10-K Financial Statement

#000109714924000011 Filed on February 28, 2024

Income Statement

Balance Sheet

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Files In Submission

$ALGN ALIGN TECHNOLOGY INC Stock $algn

2024 Q1 Form 10-K Financial Statement

#000109714924000011 Filed on February 28, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$ALGN
ALIGN TECHNOLOGY INC Stock $algn