Leases - Schedule of Future Minimum Lease Payments For Failed Sale Leaseback Transactions (Detail) $ in Thousands	Dec. 31, 2025 USD ($)
Lessee, Lease, Description [Line Items]
2026	$ 5,043
2027	5,143
2028	5,246
2029	5,351
2030	5,458
2031	5,567
2032 and thereafter	122,259
Total	$ 154,067

Future minimum lease payments sale lease back transactions.

No definition available.

Name:	prdo_FutureMinimumLeasePaymentsSaleLeaseBackTransactions
Namespace Prefix:	prdo_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Future minimum lease payments sale lease back transactions due next twelve months.

+ References

No definition available.

+ Details

Name:	prdo_FutureMinimumLeasePaymentsSaleLeaseBackTransactionsDueNextTwelveMonths
Namespace Prefix:	prdo_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Future minimum lease payments sale leaseback transactions due year five.

+ References

No definition available.

+ Details

Name:	prdo_FutureMinimumLeasePaymentsSaleLeasebackTransactionsDueYearFive
Namespace Prefix:	prdo_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Future minimum lease payments sale leaseback transactions due year four.

+ References

No definition available.

+ Details

Name:	prdo_FutureMinimumLeasePaymentsSaleLeasebackTransactionsDueYearFour
Namespace Prefix:	prdo_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Future minimum lease payments sale leaseback transactions due year seven and thereafter.

+ References

No definition available.

+ Details

Name:	prdo_FutureMinimumLeasePaymentsSaleLeasebackTransactionsDueYearSevenAndThereafter
Namespace Prefix:	prdo_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Future minimum lease payments sale leaseback transactions due year six.

+ References

No definition available.

+ Details

Name:	prdo_FutureMinimumLeasePaymentsSaleLeasebackTransactionsDueYearSix
Namespace Prefix:	prdo_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Future minimum lease payments sale leaseback transactions due year three.

+ References

No definition available.

+ Details

Name:	prdo_FutureMinimumLeasePaymentsSaleLeasebackTransactionsDueYearThree
Namespace Prefix:	prdo_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Future minimum lease payments sale leaseback transactions due year two.

+ References

No definition available.

+ Details

Name:	prdo_FutureMinimumLeasePaymentsSaleLeasebackTransactionsDueYearTwo
Namespace Prefix:	prdo_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 7A
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-7A

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-3

+ Details

Name:	us-gaap_LesseeLeaseDescriptionLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration