Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2014

Commitments and Contingencies.

Schedule of future minimum lease payments under non-cancelable operating leases

Future minimum lease payments under non-cancelable operating leases are as follows (in thousands):

Year Ending December 31,
2015	$	3,839
2016		3,409
2017		3,271
2018		2,695
2019		643
Thereafter		128
Total	$	13,985

Future milestone payments under assignment and license agreements

Future milestone payments based on our estimates of the timing and probability of achieving milestones specified under these arrangements are as follows (in thousands):

Year Ending December 31,	(1)
2015	$	2,311
2016		1,383
2017		1,339
2018		12,491
2019		2,568
Thereafter		7,777
Total	$	27,869

(1) The amounts and timing of future milestone payments may vary depending on when related milestones will be attained, if at all.