Accounts Receivable (Schedule of Accounts Affected by the Estimated Provisions) (Details) (USD $)	6 Months Ended				46 Months Ended
	Jun. 30, 2014		Jun. 30, 2013		Dec. 31, 2013
Accounts Receivable Reserves [Roll Forward]
Beginning balance	$ (240,061,000)		$ (195,702,000)
Provision recorded for current period sales	(722,784,000)		(528,300,000)
(Provision) reversal recorded for prior period sales	(1,448,000)		574,000
Credits processed	706,349,000		494,352,000
Ending balance	(275,509,000)		(229,076,000)		(240,061,000)
Accrued Liabilities [Roll Forward]
Beginning balance	(35,829,000)	[1]	(42,162,000)	[1]
Provision recorded for current period sales	(35,506,000)	[1]	(34,461,000)	[1]
(Provision) reversal recorded for prior period sales	2,805,000	[1],[2]	0	[1]
Credits processed	41,397,000	[1]	35,278,000	[1]
Ending balance	(27,515,000)	[1]	(41,345,000)	[1]	(35,829,000)	[1]
Valuation Allowances and Reserves, Period Increase (Decrease)	1,000,000
Decease in Medicaid accrual					3,600,000
Par Sterile [Member]
Accounts Receivable Reserves [Roll Forward]
Ending balance					(17,565,000)
Accrued Liabilities [Roll Forward]
Ending balance					(382,000)	[1]
Chargebacks [Member]
Accounts Receivable Reserves [Roll Forward]
Beginning balance	(48,766,000)		(41,670,000)
Provision recorded for current period sales	(396,493,000)		(287,424,000)
(Provision) reversal recorded for prior period sales	0	[3]	0	[3]
Credits processed	392,889,000		279,334,000
Ending balance	(58,256,000)		(49,760,000)
Chargebacks [Member] | Par Sterile [Member]
Accounts Receivable Reserves [Roll Forward]
Ending balance					(5,886,000)
Rebates and incentive programs [Member]
Accounts Receivable Reserves [Roll Forward]
Beginning balance	(75,321,000)		(59,426,000)
Provision recorded for current period sales	(194,296,000)		(126,921,000)
(Provision) reversal recorded for prior period sales	0		574,000
Credits processed	186,739,000		121,118,000
Ending balance	(88,367,000)		(64,655,000)
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)		(68,062,000)
Provision recorded for current period sales	(16,290,000)		(24,683,000)
(Provision) reversal recorded for prior period sales	0		0
Credits processed	12,534,000		13,664,000
Ending balance	(86,335,000)		(79,081,000)
Returns [Member] | Par Sterile [Member]
Accounts Receivable Reserves [Roll Forward]
Ending balance					(4,398,000)
Cash discounts and other [Member]
Accounts Receivable Reserves [Roll Forward]
Beginning balance	(37,793,000)		(26,544,000)
Provision recorded for current period sales	(115,705,000)		(89,272,000)
(Provision) reversal recorded for prior period sales	(1,448,000)	[4]	0
Credits processed	114,187,000		80,236,000
Ending balance	(42,551,000)		(35,580,000)
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.

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