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Certain Balance Sheet Components (Schedule of Timber and Timberlands) (Details) - USD ($) $ in Thousands | Sep. 30, 2019 | Dec. 31, 2018
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Timber And Timberlands [Abstract] |  |
Timber and timberlands | $ 1,565,890 | $ 1,590,997
Logging roads | 83,306 | 81,818
Total timber and timberlands, net | $ 1,649,196 | $ 1,672,815

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- Definition Logging roads, net. + References No definition available. + Details
Name: | pch_LoggingRoads
Namespace Prefix: | pch_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Timber and timberlands. + References No definition available. + Details
Name: | pch_TimberAndTimberlandsAbstract
Namespace Prefix: | pch_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Amount after accumulated depreciation and depletion of forest crops and land devoted primarily to the growth and harvest of forest crops for commercial purposes. + References No definition available. + Details
Name: | pch_TimberAndTimberlandsNet
Namespace Prefix: | pch_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Timber and timberlands net of depletion. + References No definition available. + Details
Name: | pch_TimberAndTimberlandsNetOfDepletion
Namespace Prefix: | pch_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant