XML 62 R48.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Other Income (Expense), Net (Parenthetical) (Details) | 3 Months Ended
--- | ---
Jun. 30, 2018
Wallula, Washington Mill |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |
High-performance of virgin kraft linerboard machine percentage | 100.00%

X
- Definition High performance of virgin kraft linerboard machine percentage. + References No definition available. + Details
Name: | pkg_HighPerformanceOfVirginKraftLinerboardMachinePercentage
Namespace Prefix: | pkg_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- 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_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_RestructuringPlanAxis=pkg_WallulaWashingtonMillMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |