XML 83 R53.htm IDEA: XBRL DOCUMENT
v3.20.1

Legal Proceedings - Narrative (Details) |  |  |  |  |  | 1 Months Ended
--- | --- | --- | --- | --- | --- | ---
Apr. 30, 2020 claim patent violation | Aug. 30, 2019 patent | Dec. 11, 2018 patent floor | Nov. 14, 2017 patent floor | Jul. 24, 2017 Lawsuit | Dec. 31, 2018 patent Lawsuit
Loss Contingencies [Line Items] |  |  |  |  |  |
Number of lawsuits/complaints | Lawsuit |  |  |  |  | 6 | 3
Patents Allegedly Infringed upon |  | 3 | 3 |  |  | 10
Gain Contingency, Patents Found Infringed upon, Number | 2 |  |  |  |  |
Number Of Section 337 Violations | violation | 4 |  |  |  |  |
Subsequent Event |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Number of Claims Found Valid | claim | 6 |  |  |  |  |
Gain Contingency, Patents Found Infringed upon, Number | 7 |  |  |  |  |
Number Of Claims Asserted | claim | 9 |  |  |  |  |
Lawsuit Against 3Shape AS |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Patents Allegedly Infringed upon |  |  |  | 26 |  |
Violation Of Trade Laws 3Shape |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Number of lawsuits/complaints | floor |  |  |  | 2 |  |
Patent Infringement By 3Shape |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Number of lawsuits/complaints | floor |  |  | 2 | 4 |  |

X
- Definition Number Of Claims Asserted + References No definition available. + Details
Name: | algn_NumberOfClaimsAsserted
Namespace Prefix: | algn_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of Claims Found Valid + References No definition available. + Details
Name: | algn_NumberOfClaimsFoundValid
Namespace Prefix: | algn_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number Of Section 337 Violations + References No definition available. + Details
Name: | algn_NumberOfSection337Violations
Namespace Prefix: | algn_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Patent Infringement, Number of Lawsuits + References No definition available. + Details
Name: | algn_PatentInfringementNumberofLawsuits
Namespace Prefix: | algn_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of entity's patents that another entity has allegedly infringed. + References No definition available. + Details
Name: | us-gaap_GainContingencyPatentsAllegedlyInfringedUponNumber
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of entity's patents that another entity was found to have infringed. + References No definition available. + Details
Name: | us-gaap_GainContingencyPatentsFoundInfringedUponNumber
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_LossContingenciesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_GainContingenciesByNatureAxis=algn_Lawsuitagainst3ShapeASMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_GainContingenciesByNatureAxis=algn_ViolationofTradeLaws3ShapeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_GainContingenciesByNatureAxis=algn_PatentInfringementby3ShapeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |