Stockholders' Equity (Changes In Stockholders' Equity) (Details) (USD $) In Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Stockholders' equity at January 1, 2011			$ 1,803,329
Net income	67,552	51,460	135,847	111,815
Other comprehensive income			(382)
Compensation related to stock-based awards			18,772	10,391
Exercise of options			20,464
Common stock purchased			(34,701)	(50,064)
Distributions to noncontrolling interests			25,813
Buy-out of noncontrolling interests, net of contributions			524
Replacement equity issued in connection with the AMS acquisition			12,220
Other			3,822
Stockholders' equity at June 30, 2011	1,933,034		1,933,034
Endo Pharmaceuticals Holdings Inc. [Member]
Stockholders' equity at January 1, 2011			1,741,591
Net income			110,370
Other comprehensive income			(382)
Compensation related to stock-based awards			18,772
Exercise of options			20,464
Common stock purchased			(34,701)
Replacement equity issued in connection with the AMS acquisition			12,220
Other			3,822
Stockholders' equity at June 30, 2011	1,872,156		1,872,156
Noncontrolling Interests [Member]
Stockholders' equity at January 1, 2011			61,738
Net income			25,477
Distributions to noncontrolling interests			25,813
Buy-out of noncontrolling interests, net of contributions			524
Stockholders' equity at June 30, 2011	$ 60,878		$ 60,878