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Segment Information (Summary of Additional Reportable Segment Financial Information) (Parenthetical) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Segment Reporting [Abstract] |  |  |
Real estate development expenditures | $ 6,706 | $ 7,254 | $ 5,049

X
- Definition Real estate development expenditures. + References No definition available. + Details
Name: | pch_RealEstateDevelopmentExpenditures
Namespace Prefix: | pch_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_SegmentReportingAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration