Debt instrument maturity period.

No definition available.

Name:	pch_DebtInstrumentMaturityPeriod
Namespace Prefix:	pch_
Data Type:	xbrli:gYearMonthItemType
Balance Type:	na
Period Type:	duration

- Definition

The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=121549185&loc=d3e80748-113994

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 4
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-Name Accounting Standards Codification
-Topic 942
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-Section S99
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-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

+ Details

Name:	us-gaap_DebtInstrumentCarryingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The percentage points added to the reference rate to compute the variable rate on the interest rate derivative.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeBasisSpreadOnVariableRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Fixed interest rate related to the interest rate derivative.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeFixedInterestRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
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

No definition available.

+ Details

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

- Definition

Number of interest rate derivative instruments held by the entity at the reporting date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
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Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	us-gaap_LongtermDebtTypeAxis=pch_TermLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateSwapMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis=us-gaap_CashFlowHedgingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
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Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=pch_TermLoansMaturingDecemberTwoThousandTwentyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Period Type:

Derivative Instruments (Narrative) (Details) $ in Millions	1 Months Ended		12 Months Ended
Derivative Instruments (Narrative) (Details) $ in Millions	Dec. 31, 2020 USD ($) Derivative	Mar. 31, 2020 USD ($)	Dec. 31, 2020 USD ($) Derivative	Dec. 31, 2019 USD ($)
Derivatives Fair Value [Line Items]
Net losses expected to be reclassified into earnings in the next 12 months			$ 9.0
Term Loans [Member]
Derivatives Fair Value [Line Items]
Term loan debt	$ 100.0		100.0
Interest Rate Swaps [Member]
Derivatives Fair Value [Line Items]
Term loan debt	$ 46.0		$ 46.0	$ 40.0
Interest Rate Swaps [Member] \| Cash Flow Hedging [Member]
Derivatives Fair Value [Line Items]
Number of interest rate swap agreements \| Derivative	7		7
Interest Rate Swaps [Member] \| Cash Flow Hedging [Member] \| Minimum [Member]
Derivatives Fair Value [Line Items]
Swaps fixed interest rate	3.04%		3.04%
LIBOR variable interest rate	1.85%		1.85%
Interest Rate Swaps [Member] \| Cash Flow Hedging [Member] \| Maximum [Member]
Derivatives Fair Value [Line Items]
Swaps fixed interest rate	4.82%		4.82%
LIBOR variable interest rate	2.15%		2.15%
Interest Rate Swaps [Member] \| Cash Flow Hedging [Member] \| Term Loans [Member]
Derivatives Fair Value [Line Items]
Term loan debt	$ 403.5		$ 403.5
Interest Rate Swaps [Member] \| Cash Flow Hedging [Member] \| Term Loans Maturing in December 2020 [Member]
Derivatives Fair Value [Line Items]
Term loan debt	$ 46.0	$ 46.0	46.0
Term loan maturity period	2020-12
Interest Rate Swaps [Member] \| Cash Flow Hedging [Member] \| Term Loans Maturing in December 2020 through January 2029 [Member]
Derivatives Fair Value [Line Items]
Term loan debt		653.5
Interest Rate Swaps [Member] \| Cash Flow Hedging [Member] \| Term Loans Maturing through January 2029 [Member]
Derivatives Fair Value [Line Items]
Term loan debt		$ 607.5
Term loan maturity period		2029-01
Interest Rate Swaps [Member] \| Cash Flow Hedging [Member] \| Term Loan Maturing December 2030 [Member]
Derivatives Fair Value [Line Items]
Term loan debt	$ 46.0		$ 46.0
Swaps fixed interest rate	3.04%		3.04%
Term loan maturity period	2030-12