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v3.24.2

Segment Reporting - Additional Information (Detail) | 6 Months Ended
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Jun. 30, 2024 Segment
Segment Reporting Information [Line Items] |
Number of reporting segments | 2
CTU [Member] |
Segment Reporting Information [Line Items] |
Students enrolled expressed as percentage of enrollment | 75.00%
CTU [Member] | Fully Online [Member] |
Segment Reporting Information [Line Items] |
Percentage of enrollment | 97.00%
AIUS [Member] |
Segment Reporting Information [Line Items] |
Students enrolled expressed as percentage of enrollment | 25.00%
AIUS [Member] | Fully Online [Member] |
Segment Reporting Information [Line Items] |
Percentage of enrollment | 97.00%

X
- Definition Percentage of enrollment. + References No definition available. + Details
Name: | prdo_PercentageOfEnrollment
Namespace Prefix: | prdo_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The percentage of student enrollment for a specific group of the total entity. + References No definition available. + Details
Name: | prdo_PercentageOfStudentEnrollment
Namespace Prefix: | prdo_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 47 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482785/280-10-55-47 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 54 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482785/280-10-55-54 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 18 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-18 + Details
Name: | us-gaap_NumberOfReportableSegments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
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_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=prdo_CTUMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=prdo_FullyOnlineProgramMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=prdo_AIUSMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |