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v3.19.1

SIGNIFICANT ACCOUNTING POLICIES (Schedule of Other Intangible Assets Depreciation Rates) (Details) | 12 Months Ended
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Dec. 31, 2018
Core Technology [Member] | Minimum [Member] |
Property, Plant and Equipment [Line Items] |
Other intangible assets amortization rate | 2.00%
Core Technology [Member] | Maximum [Member] |
Property, Plant and Equipment [Line Items] |
Other intangible assets amortization rate | 8.00%
Customer Relationships [Member] | Minimum [Member] |
Property, Plant and Equipment [Line Items] |
Other intangible assets amortization rate | 3.00%
Customer Relationships [Member] | Maximum [Member] |
Property, Plant and Equipment [Line Items] |
Other intangible assets amortization rate | 8.00%
Trademark [Member] | Minimum [Member] |
Property, Plant and Equipment [Line Items] |
Other intangible assets amortization rate | 2.00%
Trademark [Member] | Maximum [Member] |
Property, Plant and Equipment [Line Items] |
Other intangible assets amortization rate | 12.00%
Customer backlog [Member] | Minimum [Member] |
Property, Plant and Equipment [Line Items] |
Other intangible assets amortization rate | 2.00%
Customer backlog [Member] | Maximum [Member] |
Property, Plant and Equipment [Line Items] |
Other intangible assets amortization rate | 3.00%

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- Definition The amortization rate of other intangible assets. + References No definition available. + Details
Name: | NICE_OtherIntangibleAssetsAmortizationRate
Namespace Prefix: | NICE_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- 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_PropertyPlantAndEquipmentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=NICE_CoreTechnologyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_CustomerRelationshipsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_TrademarksMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_OrderOrProductionBacklogMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |