Accounts Receivable (Schedule of Accounts Affected by the Estimated Provisions) (Details) (USD $)	3 Months Ended		6 Months Ended		9 Months Ended				46 Months Ended
	Sep. 30, 2014		Jun. 30, 2014		Sep. 30, 2014		Sep. 30, 2013		Dec. 31, 2013
Accounts Receivable Reserves [Roll Forward]
Beginning balance			$ (240,061,000)		$ (240,061,000)		$ (195,702,000)
Provision recorded for current period sales					(1,142,144,000)		(824,448,000)
(Provision) reversal recorded for prior period sales					1,180,000		843,000
Credits processed					1,084,562,000		794,547,000
Ending balance	(314,860,000)				(314,860,000)		(224,760,000)		(240,061,000)
Accrued Liabilities [Roll Forward]
Beginning balance			(35,829,000)	[1]	(35,829,000)	[1]	(42,162,000)	[1]
Provision recorded for current period sales					(62,536,000)	[1]	(61,745,000)	[1]
(Provision) reversal recorded for prior period sales					2,804,000	[1],[2]	3,566,000	[1],[2]
Credits processed					53,865,000	[1]	50,425,000	[1]
Ending balance	(42,078,000)	[1]			(42,078,000)	[1]	(49,916,000)	[1]	(35,829,000)	[1]
Recoveries	3,600,000
Recoveries pertaining to prior period	2,600,000
Period increase (decrease) in valuation allowances and reserves			1,000,000
Decease in Medicaid accrual									3,600,000
Par Sterile [Member]
Accounts Receivable Reserves [Roll Forward]
Ending balance									(18,397,000)
Accrued Liabilities [Roll Forward]
Ending balance									(382,000)	[1]
Chargebacks [Member]
Accounts Receivable Reserves [Roll Forward]
Beginning balance			(48,766,000)		(48,766,000)		(41,670,000)
Provision recorded for current period sales					(607,097,000)		(455,191,000)
(Provision) reversal recorded for prior period sales					2,628,000	[3]	0	[3]
Credits processed					599,190,000		448,140,000
Ending balance	(60,341,000)				(60,341,000)		(48,721,000)
Chargebacks [Member] | Par Sterile [Member]
Accounts Receivable Reserves [Roll Forward]
Ending balance									(6,296,000)
Rebates and incentive programs [Member]
Accounts Receivable Reserves [Roll Forward]
Beginning balance			(75,321,000)		(75,321,000)		(59,426,000)
Provision recorded for current period sales					(316,915,000)		(197,693,000)
(Provision) reversal recorded for prior period sales					0		574,000
Credits processed					290,280,000		189,917,000
Ending balance	(107,445,000)				(107,445,000)		(66,628,000)
Rebates and incentive programs [Member] | Par Sterile [Member]
Accounts Receivable Reserves [Roll Forward]
Ending balance									(5,489,000)
Returns [Member]
Accounts Receivable Reserves [Roll Forward]
Beginning balance			(78,181,000)		(78,181,000)		(68,062,000)
Provision recorded for current period sales					(25,482,000)		(31,709,000)
(Provision) reversal recorded for prior period sales					0		0
Credits processed					20,763,000		22,371,000
Ending balance	(87,720,000)				(87,720,000)		(77,400,000)
Returns [Member] | Par Sterile [Member]
Accounts Receivable Reserves [Roll Forward]
Ending balance									(4,820,000)
Cash discounts and other [Member]
Accounts Receivable Reserves [Roll Forward]
Beginning balance			(37,793,000)		(37,793,000)		(26,544,000)
Provision recorded for current period sales					(192,650,000)		(139,855,000)
(Provision) reversal recorded for prior period sales					(1,448,000)	[4]	269,000
Credits processed					174,329,000		134,119,000
Ending balance	(59,354,000)				(59,354,000)		(32,011,000)
Cash discounts and other [Member] | Par Sterile [Member]
Accounts Receivable Reserves [Roll Forward]
Ending balance									$ (1,792,000)

[1] Includes amounts due to indirect customers for which no underlying accounts receivable exists and is principally comprised of Medicaid rebates and rebates due under other U.S. Government pricing programs, such as TriCare and the Department of Veterans Affairs.

[2] Based upon additional available information related to Managed Medicaid utilization in California, we reduced our Medicaid accruals for the periods March 2010 through December 2013 by approximately $3.6 million. Our Medicaid accrual represents our best estimate at this time.

[3] Unless specific in nature, the amount of provision or reversal of reserves related to prior periods for chargebacks is not determinable on a product or customer specific basis; however, based upon historical analysis and analysis of activity in subsequent periods, we believe that our chargeback estimates remain reasonable. During the three months ended September 30, 2014, the Company settled a dispute with a customer resulting in a recovery payment of $3.6 million of which $2.6 million pertained to prior year transactions.

[4] During the first half of 2014, we recorded an additional reserve totaling approximately $1.0 million related to a dispute with a customer.