Lease Obligations (Lease Obligations) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013
Payments expected to received from sublease agreements
Operating lease obligations	$ 15,770
Subleases	13,099
Corporate headquarters-San Diego, CA [Member]
Payments expected to received from sublease agreements
Operating lease obligations	4,038
Bioscience and Technology Business Center-Lawrence, KS [Member]
Payments expected to received from sublease agreements
Operating lease obligations	71
Vacated office and research facility-San Diego, CA [Member]
Payments expected to received from sublease agreements
Operating lease obligations	4,125
Vacated office and research facility-Cranbury, NJ [Member]
Payments expected to received from sublease agreements
Operating lease obligations	7,536
Office and research facility-San Diego CA [Member]
Payments expected to received from sublease agreements
Subleases	1,670
Office and research facility-Cranbury, NJ [Member]
Payments expected to received from sublease agreements
Subleases	1,001
Less than 1 year [Member]
Payments expected to received from sublease agreements
Operating lease obligations	5,503
Subleases	4,264
Less than 1 year [Member] | Corporate headquarters-San Diego, CA [Member]
Payments expected to received from sublease agreements
Operating lease obligations	660
Less than 1 year [Member] | Bioscience and Technology Business Center-Lawrence, KS [Member]
Payments expected to received from sublease agreements
Operating lease obligations	57
Less than 1 year [Member] | Vacated office and research facility-San Diego, CA [Member]
Payments expected to received from sublease agreements
Operating lease obligations	2,223
Less than 1 year [Member] | Vacated office and research facility-Cranbury, NJ [Member]
Payments expected to received from sublease agreements
Operating lease obligations	2,563
Less than 1 year [Member] | Office and research facility-San Diego CA [Member]
Payments expected to received from sublease agreements
Subleases	899
Less than 1 year [Member] | Office and research facility-Cranbury, NJ [Member]
Payments expected to received from sublease agreements
Subleases	340
One to three years [Member]
Payments expected to received from sublease agreements
Operating lease obligations	8,261
Subleases	6,829
One to three years [Member] | Corporate headquarters-San Diego, CA [Member]
Payments expected to received from sublease agreements
Operating lease obligations	1,372
One to three years [Member] | Bioscience and Technology Business Center-Lawrence, KS [Member]
Payments expected to received from sublease agreements
Operating lease obligations	14
One to three years [Member] | Vacated office and research facility-San Diego, CA [Member]
Payments expected to received from sublease agreements
Operating lease obligations	1,902
One to three years [Member] | Vacated office and research facility-Cranbury, NJ [Member]
Payments expected to received from sublease agreements
Operating lease obligations	4,973
One to three years [Member] | Office and research facility-San Diego CA [Member]
Payments expected to received from sublease agreements
Subleases	771
One to three years [Member] | Office and research facility-Cranbury, NJ [Member]
Payments expected to received from sublease agreements
Subleases	661
Three to five years [Member]
Payments expected to received from sublease agreements
Operating lease obligations	1,446
Subleases	1,446
Three to five years [Member] | Corporate headquarters-San Diego, CA [Member]
Payments expected to received from sublease agreements
Operating lease obligations	1,446
Three to five years [Member] | Bioscience and Technology Business Center-Lawrence, KS [Member]
Payments expected to received from sublease agreements
Operating lease obligations
Three to five years [Member] | Vacated office and research facility-San Diego, CA [Member]
Payments expected to received from sublease agreements
Operating lease obligations
Three to five years [Member] | Vacated office and research facility-Cranbury, NJ [Member]
Payments expected to received from sublease agreements
Operating lease obligations
Three to five years [Member] | Office and research facility-San Diego CA [Member]
Payments expected to received from sublease agreements
Subleases
Three to five years [Member] | Office and research facility-Cranbury, NJ [Member]
Payments expected to received from sublease agreements
Subleases
More than 5 years [Member]
Payments expected to received from sublease agreements
Operating lease obligations	560
Subleases	560
More than 5 years [Member] | Corporate headquarters-San Diego, CA [Member]
Payments expected to received from sublease agreements
Operating lease obligations	560
More than 5 years [Member] | Bioscience and Technology Business Center-Lawrence, KS [Member]
Payments expected to received from sublease agreements
Operating lease obligations
More than 5 years [Member] | Vacated office and research facility-San Diego, CA [Member]
Payments expected to received from sublease agreements
Operating lease obligations
More than 5 years [Member] | Vacated office and research facility-Cranbury, NJ [Member]
Payments expected to received from sublease agreements
Operating lease obligations
More than 5 years [Member] | Office and research facility-San Diego CA [Member]
Payments expected to received from sublease agreements
Subleases
More than 5 years [Member] | Office and research facility-Cranbury, NJ [Member]
Payments expected to received from sublease agreements
Subleases