XML 113 R95.htm IDEA: XBRL DOCUMENT
v3.6.0.2

Quarterly Financial Data - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Quarterly Financial Data [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales | $ 1,476.6 | [1] | $ 1,484.0 | [2] | $ 1,417.4 | [3] | $ 1,401.0 | [4] | $ 1,390.9 | [5] | $ 1,470.8 | [6] | $ 1,454.3 | [7] | $ 1,425.7 | [8] | $ 5,779.0 | $ 5,741.7 | $ 5,852.6 |
Gross profit | 327.1 | [1] | 329.5 | [2] | 320.1 | [3] | 299.0 | [4] | 285.0 | [5] | 328.3 | [6] | 317.6 | [7] | 277.0 | [8] | 1,275.7 | 1,208.0 | 1,229.5 |
Operating Income (Loss) | (192.9) | [1] | (206.4) | [2] | (200.2) | [3] | (180.8) | [4] | (175.9) | [5] | (219.4) | [6] | (197.6) | [7] | (157.1) | [8] | (780.3) | (750.0) | (702.7) |
Net income attributable to Packaging Corporation of America | $ 110.6 | [1] | $ 119.4 | [2] | $ 115.9 | [3] | $ 103.7 | [4] | $ 104.3 | [5] | $ 127.8 | [6] | $ 114.0 | [7] | $ 90.8 | [8] | $ 449.6 | $ 436.8 | $ 392.6 |
Basic income per common share (US$ per share) | $ 1.17 | [1] | $ 1.27 | [2] | $ 1.23 | [3] | $ 1.09 | [4] | $ 1.07 | [5] | $ 1.31 | [6] | $ 1.16 | [7] | $ 0.92 | [8] | $ 4.76 | $ 4.47 | $ 3.99 |
Diluted income per common share (US$ per share) | 1.17 | [1] | 1.26 | [2] | 1.23 | [3] | 1.09 | [4] | 1.07 | [5] | 1.31 | [6] | 1.16 | [7] | 0.92 | [8] | 4.75 | 4.47 | $ 3.99 |
Stock price - high | 88.41 | [1] | 82.77 | [2] | 71.31 | [3] | 62.67 | [4] | 70.04 | [5] | 73.60 | [6] | 78.98 | [7] | 84.88 | [8] | 88.41 | 84.88 |  |
Stock price - low | $ 78.03 | [1] | $ 65.12 | [2] | $ 58.44 | [3] | $ 44.32 | [4] | $ 59.54 | [5] | $ 58.29 | [6] | $ 62.48 | [7] | $ 73.03 | [8] | $ 44.32 | $ 58.29 |  |
Interest expense, net |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ (91.8) | $ (85.5) | $ (88.4) | [9]
Income before taxes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 688.5 | $ 664.5 | $ 614.3 |
Corrugated Products Facility Closure |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Quarterly Financial Data [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Income (Loss) | $ (4.5) |  | $ (2.0) |  | $ (1.7) |  | $ (2.8) |  |  |  |  |  |  |  |  |  |  |  |  |
Decrease (Increase) in net income | $ (2.9) |  | $ (1.4) |  | $ (1.0) |  | $ (1.9) |  |  |  |  |  |  |  |  |  |  |  |  |
Decrease (Increase) in net income per diluted share | $ (0.03) |  | $ (0.02) |  | $ (0.01) |  | $ (0.02) |  |  |  |  |  |  |  |  |  |  |  |  |
Withdrawal from Multiemployer Defined Benefit Plan |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Quarterly Financial Data [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Income (Loss) |  |  |  |  | $ (0.9) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Decrease (Increase) in net income |  |  |  |  | $ (0.6) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Decrease (Increase) in net income per diluted share |  |  |  |  | $ (0.01) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
DeRidder Restructuring Costs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Quarterly Financial Data [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Income (Loss) |  |  |  |  |  |  |  |  | $ (3.5) |  | $ (3.8) |  | $ (1.0) |  | $ 10.3 |  |  |  |  |
Decrease (Increase) in net income |  |  |  |  |  |  |  |  | $ 2.2 |  | $ 2.3 |  | $ 0.7 |  | $ (6.6) |  |  |  |  |
Decrease (Increase) in net income per diluted share |  |  |  |  |  |  |  |  | $ 0.02 |  | $ 0.02 |  | $ 0.01 |  | $ (0.07) |  |  |  |  |
TimBar Corporation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Quarterly Financial Data [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 116.9 |  |  |
Operating Income (Loss) | $ (1.2) |  | $ (2.9) |  | $ (0.3) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Decrease (Increase) in net income | $ (0.8) |  | $ (1.9) |  | $ (0.2) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Decrease (Increase) in net income per diluted share | $ (0.01) |  | $ (0.02) |  | $ (0.0) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Boise Inc. | Integration-Related and Other Costs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Quarterly Financial Data [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Income (Loss) |  |  |  |  |  |  |  |  | $ 3.8 |  | $ 2.4 |  | $ 3.7 |  | $ 3.5 |  |  |  |  |
Decrease (Increase) in net income |  |  |  |  |  |  |  |  | $ (2.6) |  | $ (1.7) |  | $ (2.3) |  | $ (2.2) |  |  |  |  |
Decrease (Increase) in net income per diluted share |  |  |  |  |  |  |  |  | $ (0.03) |  | $ (0.02) |  | $ (0.03) |  | $ (0.02) |  |  |  |  |
Mill at St. Helens, Oregon | DeRidder Restructuring Costs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Quarterly Financial Data [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Income (Loss) |  |  |  |  |  |  |  |  |  |  | $ (6.7) |  |  |  |  |  |  |  |  |
Decrease (Increase) in net income |  |  |  |  |  |  |  |  |  |  | $ 4.4 |  |  |  |  |  |  |  |  |
Decrease (Increase) in net income per diluted share |  |  |  |  |  |  |  |  |  |  | $ 0.05 |  |  |  |  |  |  |  |  |
Louisiana State | DeRidder Restructuring Costs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Quarterly Financial Data [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Income (Loss) |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ (3.6) |  |  |  |  |
Wallula, Washington Mill |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Quarterly Financial Data [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Income (Loss) | $ (2.7) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Decrease (Increase) in net income | $ (1.8) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Decrease (Increase) in net income per diluted share | $ (0.02) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
[1] | Includes $4.5 million of closure costs related to a corrugated products facility and a paper products facility ($2.9 million after-tax or $0.03 per diluted share), $2.7 million of costs related to ceased production of softwood market pulp operations at our Wallula, Washington mill and the permanent shutdown of the No.1 machine ($1.8 million after-tax or $0.02 per diluted share), and $1.2 million of acquisition-related costs for TimBar Corporation and Columbus Container, Inc. acquisitions ($0.8 million after-tax or $0.01 per diluted share).
[2] | Includes $2.0 million of closure costs related to a corrugated products facility and a paper products facility ($1.4 million after-tax or $0.02 per diluted share) and $2.9 million of acquisition-related costs for TimBar Corporation and Columbus Container, Inc. acquisitions ($1.9 million after-tax or $0.02 per diluted share).
[3] | Includes $1.7 million of closure costs related to a corrugated products facility and a paper products facility ($1.0 million after-tax or $0.01 per diluted share), $0.3 million of acquisition-related costs for TimBar Corporation ($0.2 million after-tax or $0.0 per diluted share), and $0.9 million related to our withdrawal from a multiemployer pension plan for one of our corrugated products facilities ($0.6 million after-tax or $0.01 per diluted share).
[4] | Includes $2.8 million of closure costs related to a corrugated products facility and a paper products facility. ($1.9 million after-tax or $0.02 per diluted share).
[5] | Includes $3.5 million of income from DeRidder restructuring ($2.2 million after-tax or $0.02 per diluted share) and $3.8 million of integration-related and other costs ($2.6 million after-tax or $0.03 per diluted share).
[6] | Includes $3.8 million of income from DeRidder restructuring ($2.3 million after-tax or $0.02 per diluted share) and $2.4 million of integration-related and other costs ($1.7 million after-tax or $0.02 per diluted share). Also includes $6.7 million gain from the sale of our paper mill site at St. Helens, Oregon ($4.4 million after tax or $0.05 per diluted share).
[7] | Includes $1.0 million of income from DeRidder restructuring ($0.7 million after-tax or $0.01 per diluted share) and $3.7 million of integration-related and other costs ($2.3 million after-tax or $0.03 per diluted share).
[8] | Includes $10.3 million of DeRidder restructuring charges ($6.6 million after-tax or $0.07 per diluted share) and $3.5 million of integration-related and other costs ($2.2 million after-tax or $0.02 per diluted share). Also includes a $3.6 million tax credit from the State of Louisiana related to our capital investment and the jobs retained at the DeRidder, Louisiana mill.
[9] | Includes $1.5 million of expense related to the write-off of deferred financing costs in connection with the debt refinancing discussed in Note 9, Debt.

X
- Definition Represents the high price of the Company's stock during the reporting period. + References No definition available. + Details
Name: | pkg_HighStockPricePerShare
Namespace Prefix: | pkg_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the low price of the Company's stock during the reporting period. + References No definition available. + Details
Name: | pkg_LowStockPricePerShare
Namespace Prefix: | pkg_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Quarterly Financial Data [Line Items] + References No definition available. + Details
Name: | pkg_QuarterlyFinancialDataLineItems
Namespace Prefix: | pkg_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Per share amount of the item included in the interim period that affected period-to-period comparability (excluding restatement adjustments). + References No definition available. + Details
Name: | pkg_QuarterlyFinancialInformationQuarterlyChargesAndCreditsAmountPerDilutedShareAffectingComparability
Namespace Prefix: | pkg_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 55 -Paragraph 52 -URI http://asc.fasb.org/extlink&oid=65016374&loc=d3e4984-109258 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(19)) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64863997&loc=d3e1252-109256 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(21)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(23)) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 + Details
Name: | us-gaap_EarningsPerShareBasic
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(19)) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64863997&loc=d3e1252-109256 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(21)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(23)) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 + Details
Name: | us-gaap_EarningsPerShareDiluted
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1,2) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
Name: | us-gaap_GrossProfit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 940 -SubTopic 20 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=68072869&loc=d3e41242-110953 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(10)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(15)) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(8)) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 + Details
Name: | us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The net amount of nonoperating interest income (expense). + References No definition available. + Details
Name: | us-gaap_InterestIncomeExpenseNonoperatingNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Net Income -URI http://asc.fasb.org/extlink&oid=51831255 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(22)) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(18)) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Other Comprehensive Income -URI http://asc.fasb.org/extlink&oid=51831270 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(20)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
Name: | us-gaap_NetIncomeLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The net result for the period of deducting operating expenses from operating revenues. + References No definition available. + Details
Name: | us-gaap_OperatingIncomeLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of the item included in the interim period that affected period-to-period comparability (excluding restatement adjustments). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=68076893&loc=d3e1570-108306 + Details
Name: | us-gaap_QuarterlyFinancialInformationQuarterlyChargesAndCreditsAmountAffectingComparability
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
Name: | us-gaap_SalesRevenueNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | pkg_NonrecurringActivityAxis=pkg_CorrugatedProductsFacilityClosureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | pkg_NonrecurringActivityAxis=us-gaap_WithdrawalFromMultiemployerDefinedBenefitPlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | pkg_NonrecurringActivityAxis=us-gaap_RestructuringChargesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=pkg_TimBarCorporationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=pkg_BoiseInc.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | pkg_NonrecurringActivityAxis=pkg_IntegrationRelatedandOtherCostsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis=pkg_MillatSt.HelensOregonMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeTaxAuthorityAxis=us-gaap_StateAndLocalJurisdictionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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