XML 27 R73.htm IDEA: XBRL DOCUMENT v2.4.0.6

Debt (Additional Information On Variable Rate Debt) (Details)	Dec. 31, 2011	Dec. 31, 2010
Receivables Credit Facility [Member]
Debt Instrument [Line Items]
Reference Interest Rate	0.30%	0.26%
Applicable Margin	0.85	1.30
Senior Credit Facility [Member]
Debt Instrument [Line Items]
Reference Interest Rate	0.58%
Applicable Margin	1.50

X

- Definition

Represents the applicable margin for the debt instrument at the end of the period.

+ References

No definition available.

+ Details

Name:	pkg_LongTermDebtApplicableMargin
Namespace Prefix:	pkg_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Represents the reference interest rate for the debt instrument at the end of the period.

+ References

No definition available.

+ Details

Name:	pkg_ReferenceInterestRate
Namespace Prefix:	pkg_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Details

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