Accounts Receivable (Schedule Of Accounts Affected By The Estimated Provisions) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012		Mar. 31, 2011
Accounts Affected By The Estimated Provisions [Line Items]
Accounts receivable reserves, Beginning balance	$ (143,164)		$ (108,289)
Accounts receivable reserves, Provision recorded for current period sales	(176,238)		(117,386)
Accounts receivable reserves, (Provision) reversal recorded for prior period sales	734		568
Accounts receivable reserves, Credits processed	177,448		114,061
Accounts receivable reserves, Ending balance	(141,220)		(111,046)
Accrued liabilities, Beginning balance	(39,614)	[1]	(32,169)	[1]
Accrued liabilities, Provision recorded for current period sales	(10,954)	[1]	(14,587)	[1]
Accrued liabilities, (Provision) reversal recorded for prior period sales		[1]	416	[1]
Accrued liabilities, Credits processed	22,579	[1]	15,969	[1]
Accrued liabilities, Ending balance	(27,989)	[1]	(30,371)	[1]
Resolution of customer dispute regarding invalid deductions taken in prior years	1,700
Chargebacks [Member]
Accounts Affected By The Estimated Provisions [Line Items]
Accounts receivable reserves, Beginning balance	(20,688)		(19,482)
Accounts receivable reserves, Provision recorded for current period sales	(99,491)		(58,761)
Accounts receivable reserves, (Provision) reversal recorded for prior period sales		[2]		[2]
Accounts receivable reserves, Credits processed	94,036		59,828
Accounts receivable reserves, Ending balance	(26,143)		(18,415)
Rebates And Incentive Programs [Member]
Accounts Affected By The Estimated Provisions [Line Items]
Accounts receivable reserves, Beginning balance	(35,132)		(23,273)
Accounts receivable reserves, Provision recorded for current period sales	(43,653)		(26,257)
Accounts receivable reserves, (Provision) reversal recorded for prior period sales	(59)		660
Accounts receivable reserves, Credits processed	41,219		24,916
Accounts receivable reserves, Ending balance	(37,625)		(23,954)
Returns [Member]
Accounts Affected By The Estimated Provisions [Line Items]
Accounts receivable reserves, Beginning balance	(58,672)		(48,928)
Accounts receivable reserves, Provision recorded for current period sales	(6,692)		(7,094)
Accounts receivable reserves, (Provision) reversal recorded for prior period sales	1,602	[3]	265
Accounts receivable reserves, Credits processed	5,614		4,341
Accounts receivable reserves, Ending balance	(58,148)		(51,416)
Cash Discounts And Other [Member]
Accounts Affected By The Estimated Provisions [Line Items]
Accounts receivable reserves, Beginning balance	(28,672)		(16,606)
Accounts receivable reserves, Provision recorded for current period sales	(26,402)		(25,274)
Accounts receivable reserves, (Provision) reversal recorded for prior period sales	(809)		(357)
Accounts receivable reserves, Credits processed	36,579		24,976
Accounts receivable reserves, Ending balance	$ (19,304)		$ (17,261)

[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] 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 have determined that our chargeback estimates remain reasonable.

[3] The amount principally represents the resolution of a customer dispute in the first quarter of 2012 regarding invalid deductions taken in prior years of approximately $1,700 thousand.