Investments in Partnerships - Summary of Share of Equity in Loss of Partnerships (Parenthetical) (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2023	Mar. 31, 2022
Equity Method Investments and Joint Ventures [Abstract]
Capitalized interest expense	$ 24	$ 0

Interest cost capitalized equity method investments.

No definition available.

Name:	pret_InterestCostCapitalizedEquityMethodInvestments
Namespace Prefix:	pret_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration