License and Collaboration Agreements (Tables)

6 Months Ended

Jun. 30, 2011

License and Collaboration Agreements (Tables) [Abstract]

License, collaboration, and other revenue

		Three months ended				Six months ended
		June 30,				June 30,
Partner	Drug or Drug Candidate	2011		2010		2011		2010
F. Hoffmann- LaRoche	PEGASYS®	$	1,283	$	1,283	$	2,566	$	2,566
Amgen, Inc.	Neulasta®		1,250		—		2,500		—
Bayer Healthcare LLC	BAY41-6551 (Amikacin Inhale)		750		818		1,500		1,705
AstraZeneca AB	NKTR-118 and NKTR-119		845		27,579		1,086		53,306
Other			2,195		1,729		5,177		3,485
License, collaboration, and other revenue		$	6,323	$	31,409	$	12,829	$	61,062