Accrued legal settlements.

No definition available.

Name:	prx_AccruedLegalSettlements
Namespace Prefix:	prx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	prx_CommitmentsContingenciesAndOtherMattersLineItems
Namespace Prefix:	prx_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of consolidated lawsuits.

+ References

No definition available.

+ Details

Name:	prx_NumberOfConsolidatedLawsuits
Namespace Prefix:	prx_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Month, day and year when the business acquisition agreement was executed.

+ References

No definition available.

+ Details

Name:	us-gaap_BusinessAcquisitionDateOfAcquisitionAgreement
Namespace Prefix:	us-gaap_
Data Type:	us-types:dateStringItemType
Balance Type:	na
Period Type:	duration

- Definition

The net proceeds or assets obtained in excess of (less than) the net carrying amount of assets recorded, or assets distributed and liabilities assumed less than (in excess of) estimated litigation liability extinguished, in settlement of a litigation matter. Represents (for other than an insurance entity in its normal claims settlement process), the amount of income (expense) recognized in the period to settle pending or threatened litigation and insurance claims.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 5

-Paragraph 9, 10, 11, 12

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6952336&loc=d3e14326-108349

+ Details

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

- Definition

This element represents the expenses incurred by the entity which are directly related and attributable to receiving an award in settlement of litigation.

+ References

No definition available.

+ Details

Name:	us-gaap_LitigationSettlementExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The total number of new claims filed pertaining to a loss contingency during the period.

+ References

+ Details

Name:	us-gaap_LossContingencyNewClaimsFiledNumber
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Commitments, Contingencies And Other Matters (Details) (USD $) In Thousands, unless otherwise specified	0 Months Ended				3 Months Ended			6 Months Ended			0 Months Ended
	Jul. 30, 2012 lawsuits	Oct. 18, 2011	Jun. 02, 2011	Jan. 29, 2007 lawsuits	Jun. 30, 2012	Mar. 31, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011	Mar. 12, 2012 ANDA [Member]
Commitments, Contingencies And Other Matters [Line Items]
Number of lawsuits filed	5
Number of consolidated lawsuits				2
Date of acquisition and license agreement											March 12, 2012
Settlement payments related to AWP litigation		$ 884	$ 23,000
Accrued legal settlements					82,800			82,800		37,800
Estimated accrued potential loss					$ 0	$ 45,000	$ 0	$ 45,000	$ 190,560