Invoice period for customers to avail cash discount, days.

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Namespace Prefix:	prx
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of cash discounts

+ Details

Name:	prx_PercentageOfCashDiscounts
Namespace Prefix:	prx
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Product returns terms

+ Details

Name:	prx_ProductReturnsTerms
Namespace Prefix:	prx
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Shelf lives of products sold

+ Details

Name:	prx_ShelfLivesOfProductsSold
Namespace Prefix:	prx
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of previously reported deferred or unearned revenue that was recognized as revenue during the period. Deferred revenue is a liability related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 13
-Section A

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 605
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB TOPIC 13.A.4(a).Q1)
-URI http://asc.fasb.org/extlink&oid=6600647&loc=d3e214044-122780

+ Details

Name:	us-gaap_DeferredRevenueRevenueRecognized
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The number of positions eliminated during the period as a result of restructuring activities.

+ Details

Name:	us-gaap_RestructuringAndRelatedCostNumberOfPositionsEliminated
Namespace Prefix:	us-gaap
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Aggregate revenue during the period from the sale of goods in the normal course of business, after deducting returns, allowances and discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 5
-Section 03
-Paragraph 1

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 210.5-03.1(a))
-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

+ Details

Name:	us-gaap_SalesRevenueGoodsNet
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The percentage of net product revenue to total net revenue from the sale of goods as of year end.

+ Details

Name:	us-gaap_SalesRevenueGoodsNetPercentage
Namespace Prefix:	us-gaap
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Accounts Receivable (Narrative) (Details) (USD $) In Thousands, unless otherwise specified	1 Months Ended	6 Months Ended					6 Months Ended
	Jun. 30, 2011	Jun. 30, 2011	Jun. 30, 2011 Maximum [Member]	Jun. 30, 2011 Minimum [Member]	Jun. 30, 2011 Wholesale Distribution Channel [Member]	Jun. 30, 2010 Wholesale Distribution Channel [Member]	Jun. 30, 2011 OravigTM [Member]	Jun. 30, 2011 Zuplenz [Member]
Net product sales, percentage					62.00%	61.00%
Product returns term			four-month	two-month
Shelf-lives of products sold, in months			48	12
Percentage of cash discounts		2.00%
Invoice period for customers to avail cash discount, days			90	30
Revenue							$ 1,776	$ 485
Deferred revenue							$ 457	$ 565
Workforce eliminated	90