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Summary of Significant Accounting Policies - Leases (Details) - lease	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Accounting Policies [Abstract]
Number of finance leases	0	0

X

- Definition

Lessee, Finance Lease, Number Of Leases

+ References

No definition available.

+ Details

Name:	pgny_LesseeFinanceLeaseNumberOfLeases
Namespace Prefix:	pgny_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

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