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v3.20.1

Leases - Narrative (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2019 | Jan. 01, 2019
Lessee, Lease, Description [Line Items] |  |
Lease right-of-use assets | $ 3,017 |
Total | $ 3,081 |
Minimum |  |
Lessee, Lease, Description [Line Items] |  |
Remaining lease terms | 1 year |
Maximum |  |
Lessee, Lease, Description [Line Items] |  |
Remaining lease terms | 5 years |
ASU 2016-02 |  |
Lessee, Lease, Description [Line Items] |  |
Lease right-of-use assets |  | $ 4,000
Total |  | $ 4,000

X
- Definition Lease, Liability + References No definition available. + Details
Name: | par_LeaseLiability
Namespace Prefix: | par_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Lease, Remaining Lease Term + References No definition available. + Details
Name: | par_LeaseRemainingLeaseTerm
Namespace Prefix: | par_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Definition Lease, Right-Of-Use Asset + References No definition available. + Details
Name: | par_LeaseRightOfUseAsset
Namespace Prefix: | par_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

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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_AdjustmentsForNewAccountingPronouncementsAxis=us-gaap_AccountingStandardsUpdate201602Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |