Acquisitions of Ownership Interests in Partner Companies and Funds	9 Months Ended
Sep. 30, 2016
Equity Method Investments and Joint Ventures [Abstract]
Acquisitions of Ownership Interests in Partner Companies	Acquisitions of Ownership Interests in Partner Companies In September 2016, the Company acquired a 32.6% interest in Moxe Health Corporation for $4.5 million. Moxe Health connects payers to their provider networks, facilitating real-time data exchange through its electronic integration platform. The Company accounts for its interest in Moxe Health under the equity method. In September, June and January 2016, the Company deployed an aggregate of $5.0 million into InfoBionic, Inc. The Company had previously deployed an aggregate of $9.5 million in InfoBionic. InfoBionic is an emerging digital health company focused on creating patient monitoring solutions for chronic disease management with an initial market focus on cardiac arrhythmias. The Company accounts for its interest in InfoBionic under the equity method. In September and June 2016, the Company funded an aggregate of $0.5 million of convertible loans to Lumesis, Inc. The Company had previously deployed an aggregate of $5.6 million in Lumesis. Lumesis is a financial technology company focused on providing business efficiency, regulatory and data solutions to the municipal bond marketplace. The Company accounts for its interest in Lumesis under the equity method. In July and April 2016, the Company funded an aggregate of $3.7 million of convertible bridge loans to Good Start Genetics, Inc. The Company had previously deployed an aggregate of $12.0 million in Good Start Genetics. Good Start Genetics is an information solutions company delivering genetics offerings to growing families, including advanced clinical sequencing and individualized actionable information to promote successful pregnancies. The Company accounts for its interest in Good Start Genetics under the equity method. In July and January 2016, the Company deployed an aggregate of $4.0 million into Clutch Holdings, Inc. The Company had previously deployed an aggregate of $12.3 million in Clutch. Clutch provides customer intelligence and personalized engagements that empower consumer-focused businesses to identify, understand and motivate each segment of their customer base. The Company accounts for its interest in Clutch under the equity method. In July and January 2016, the Company funded an aggregate of $4.0 million of convertible loans to Spongecell, Inc. The Company had previously deployed an aggregate of $14.0 million in Spongecell. Spongecell helps advertisers enhance the power of digital brand creative by leveraging customer data and brand content to personalize ads for maximum relevance. The Company accounts for its interest in Spongecell under the equity method. In June 2016, the Company acquired a 23.4% interest in Aktana, Inc. for $5.5 million. Aktana leverages big data and machine learning to enable pharmaceutical brands to dynamically optimize their strategy and enhance sales execution. The Company accounts for its interest in Aktana under the equity method. In June and January 2016, the Company funded an aggregate of $1.2 million of convertible bridge loans to AppFirst, Inc. The Company had previously deployed an aggregate of $11.6 million in AppFirst. The Company impaired its ownership interest in AppFirst in June 2016 due to the shutdown of AppFirst's operations and sale of its assets in June 2016, which generated cash proceeds to the Company of $0.9 million. The adjusted carrying value of the Company's interest in AppFirst is $0 as of September 30, 2016. The Company accounted for its interest in AppFirst under the equity method. In April and March 2016, the Company funded an aggregate of $1.0 million of convertible loans to NovaSom, Inc. The Company had previously deployed an aggregate of $21.0 million in NovaSom. NovaSom is a medical device company focused on obstructive sleep apnea, specifically home testing with its FDA-cleared wireless device called AccuSom^® Home Sleep Test. The Company accounts for its interest in NovaSom under the equity method. In April 2016, the Company deployed an additional $5.0 million into Transactis, Inc. The Company had previously deployed $9.5 million in Transactis. Transactis provides electronic billing and payment solutions. The Company accounts for its interest in Transactis under the equity method. In March 2016, the Company funded $1.0 million of a convertible bridge loan to Hoopla Software, Inc. The Company had previously deployed an aggregate of $3.8 million in Hoopla. Hoopla provides cloud-based software that helps sales organizations inspire and motivate sales team performance. The Company accounts for its interest in Hoopla under the equity method. In March and January 2016, the Company deployed an aggregate of $4.0 million into Full Measure Education, Inc. The Company had previously deployed $4.0 million in Full Measure. Full Measure designs next-generation, mobile-first technologies for community colleges throughout the United States. The Company accounts for its interest in Full Measure under the equity method. In January 2016, the Company deployed an additional $4.4 million into WebLinc, Inc. The Company had previously deployed an aggregate of $6.6 million in WebLinc. WebLinc is a commerce platform provider for fast growing online retailers. The Company accounts for its interest in WebLinc under the equity method. In January 2016, the Company deployed an additional $7.5 million into Syapse, Inc. The Company had previously deployed $5.8 million in Syapse. Syapse drives healthcare transformation through precision medicine, enabling provider systems to improve clinical outcomes, streamline operations, and shift to new payment models. The Company accounts for its interest in Syapse under the equity method.

Acquisitions of Ownership Interests in Partner Companies

In September 2016, the Company acquired a 32.6% interest in Moxe Health Corporation for $4.5 million. Moxe Health connects payers to their provider networks, facilitating real-time data exchange through its electronic integration platform. The Company accounts for its interest in Moxe Health under the equity method.

In September, June and January 2016, the Company deployed an aggregate of $5.0 million into InfoBionic, Inc. The Company had previously deployed an aggregate of $9.5 million in InfoBionic. InfoBionic is an emerging digital health company focused on creating patient monitoring solutions for chronic disease management with an initial market focus on cardiac arrhythmias. The Company accounts for its interest in InfoBionic under the equity method.

In September and June 2016, the Company funded an aggregate of $0.5 million of convertible loans to Lumesis, Inc. The Company had previously deployed an aggregate of $5.6 million in Lumesis. Lumesis is a financial technology company focused on providing business efficiency, regulatory and data solutions to the municipal bond marketplace. The Company accounts for its interest in Lumesis under the equity method.

In July and April 2016, the Company funded an aggregate of $3.7 million of convertible bridge loans to Good Start Genetics, Inc. The Company had previously deployed an aggregate of $12.0 million in Good Start Genetics. Good Start Genetics is an information solutions company delivering genetics offerings to growing families, including advanced clinical sequencing and individualized actionable information to promote successful pregnancies. The Company accounts for its interest in Good Start Genetics under the equity method.

In July and January 2016, the Company deployed an aggregate of $4.0 million into Clutch Holdings, Inc. The Company had previously deployed an aggregate of $12.3 million in Clutch. Clutch provides customer intelligence and personalized engagements that empower consumer-focused businesses to identify, understand and motivate each segment of their customer base. The Company accounts for its interest in Clutch under the equity method.

In July and January 2016, the Company funded an aggregate of $4.0 million of convertible loans to Spongecell, Inc. The Company had previously deployed an aggregate of $14.0 million in Spongecell. Spongecell helps advertisers enhance the power of digital brand creative by leveraging customer data and brand content to personalize ads for maximum relevance. The Company accounts for its interest in Spongecell under the equity method.

In June 2016, the Company acquired a 23.4% interest in Aktana, Inc. for $5.5 million. Aktana leverages big data and machine learning to enable pharmaceutical brands to dynamically optimize their strategy and enhance sales execution. The Company accounts for its interest in Aktana under the equity method.

In June and January 2016, the Company funded an aggregate of $1.2 million of convertible bridge loans to AppFirst, Inc. The Company had previously deployed an aggregate of $11.6 million in AppFirst. The Company impaired its ownership interest in AppFirst in June 2016 due to the shutdown of AppFirst's operations and sale of its assets in June 2016, which generated cash proceeds to the Company of $0.9 million. The adjusted carrying value of the Company's interest in AppFirst is $0 as of September 30, 2016. The Company accounted for its interest in AppFirst under the equity method.

In April and March 2016, the Company funded an aggregate of $1.0 million of convertible loans to NovaSom, Inc. The Company had previously deployed an aggregate of $21.0 million in NovaSom. NovaSom is a medical device company focused on obstructive sleep apnea, specifically home testing with its FDA-cleared wireless device called AccuSom^® Home Sleep Test. The Company accounts for its interest in NovaSom under the equity method.

In April 2016, the Company deployed an additional $5.0 million into Transactis, Inc. The Company had previously deployed $9.5 million in Transactis. Transactis provides electronic billing and payment solutions. The Company accounts for its interest in Transactis under the equity method.

In March 2016, the Company funded $1.0 million of a convertible bridge loan to Hoopla Software, Inc. The Company had previously deployed an aggregate of $3.8 million in Hoopla. Hoopla provides cloud-based software that helps sales organizations inspire and motivate sales team performance. The Company accounts for its interest in Hoopla under the equity method.

In March and January 2016, the Company deployed an aggregate of $4.0 million into Full Measure Education, Inc. The Company had previously deployed $4.0 million in Full Measure. Full Measure designs next-generation, mobile-first technologies for community colleges throughout the United States. The Company accounts for its interest in Full Measure under the equity method.

In January 2016, the Company deployed an additional $4.4 million into WebLinc, Inc. The Company had previously deployed an aggregate of $6.6 million in WebLinc. WebLinc is a commerce platform provider for fast growing online retailers. The Company accounts for its interest in WebLinc under the equity method.

In January 2016, the Company deployed an additional $7.5 million into Syapse, Inc. The Company had previously deployed $5.8 million in Syapse. Syapse drives healthcare transformation through precision medicine, enabling provider systems to improve clinical outcomes, streamline operations, and shift to new payment models. The Company accounts for its interest in Syapse under the equity method.