License And Collaborative Arrangements	6 Months Ended
Jun. 30, 2012
License And Collaborative Arrangements [Abstract]
License And Collaborative Arrangements	NOTE 4. LICENSE AND COLLABORATIVE ARRANGEMENTS *Santarus, Inc.* In August 2011, the Company entered into a commercialization agreement with Santarus granting Santarus exclusive rights to manufacture and commercialize Glumetza in the United States. The commercialization agreement supersedes the previous promotion agreement between the parties originally entered into in July 2008. Under the commercialization agreement, the Company transitioned to Santarus responsibility for manufacturing, distribution, pharmacovigilance and regulatory affairs. The Company ceased shipments of Glumetza in August 2011 and Santarus began distributing and recording product sales on shipments of Glumetza in September 2011. Santarus will continue to be responsible at its expense for advertising and promotional marketing activities for Glumetza. Santarus is required to pay the Company royalties on net product sales of Glumetza in the United States of 26.5% in 2011; 29.5% in 2012; 32.0% in 2013 and 2014; and 34.5% in 2015 and beyond prior to generic entry of a Glumetza product. In the event of generic entry of a Glumetza product in the United States, the parties will equally share proceeds based on a gross margin split. Santarus has the exclusive right to commercialize authorized generic versions of the Glumetza products. Santarus will not pay additional sales milestones to the Company as was required under the prior promotion agreement. Royalty revenue from Santarus for the three and six months ended June 30, 2012 was $9.4 million and $18.6 million, respectively. In connection with its assumption of distribution and sales responsibility of Glumetza, Santarus purchased Depomed’s existing inventory of Glumetza and bulk metformin hydrochloride at cost. Depomed is financially responsible for returns of Glumetza distributed by Depomed, up to the amount of the product returns reserve account for Glumetza product returns on the date immediately before Santarus began distributing Glumetza. Depomed is financially responsible for Glumetza rebates and chargebacks up to the amount of its reserve accounts for those items. Santarus is responsible for all other Glumetza returns, rebates and chargebacks. Under the commercialization agreement, Depomed is responsible for managing the patent infringement lawsuit against Sun Pharmaceutical Industries, Inc. (Sun) subject to certain consent rights in favor of Santarus, including with regard to any proposed settlements. Santarus will reimburse Depomed for 70% of its out-of-pocket costs, and Depomed will reimburse Santarus for 30% of its out-of-pocket costs related to these two infringement cases. The Company was previously responsible for managing the patent infringement lawsuit against Lupin Limited (Lupin), which was settled in February 2012. During 2011, Depomed distributed Glumetza for the first eight months of the year, recognized Glumetza product sales on those respective sales and paid Santarus a promotion fee equal to 75% of Glumetza gross margin. For the three and six months ended June , 2011, the Company recognized $11.1 million and $21.3 million, respectively, in promotion fee expense to Santarus related to sales of Glumetza by Depomed. In August 2011, the distribution and sales responsibility transitioned to Santarus, and Depomed no longer recorded sales of Glumetza and no longer was responsible for paying promotion fees to Santarus. Accordingly, there was no promotion fee expense in 2012. Pursuant to the promotion agreement originally entered into in July 2008, Santarus paid the Company a $12.0 million upfront fee. The upfront payment received was originally being amortized as revenue ratably until October 2021, which represented the estimated length of time the Company's obligations existed under the promotion agreement related to manufacturing Glumetza and paying Santarus promotion fees on gross margin of Glumetza. The commercialization agreement in August 2011 superseded the promotion agreement and removed the manufacturing and promotion fee obligations of the Company. The commercialization agreement includes obligations with respect to manufacturing and regulatory transition to Santarus and managing the ongoing patent infringement lawsuits against Sun and Lupin. These obligations are estimated to be completed in December 2013. Accordingly, on the effective date of the commercialization agreement, the amortization period related to remaining deferred revenue on the $12.0 million upfront fee has been adjusted, and the remaining deferred revenue will be recognized ratably until December 2013. The Company recognized approximately $1.0 million and $2.0 million of license revenue associated with this upfront license fee for the three and six months ended June 30, 2012, respectively. The Company recognized approximately $0.2 million and $0.5 million of license revenue associated with this upfront license fee for the three and six months ended June 30, 2011, respectively. The remaining deferred revenue balance related to this upfront payment is $5.8 million at June 30, 2012. *Ventiv Commercial Services, LLC* In June 2011, the Company entered into a service agreement with Ventiv Commercial Services, LLC (Ventiv), pursuant to which inVentiv Selling Solutions, Ventiv's outsourced sales business, will provide sales force recruiting, training, deployment and ongoing operational support to the Company to promote Gralise. The agreement provides for a sales force of 164 full-time sales representatives dedicated to the Company, all of whom are employees of Ventiv. Under the terms of the agreement, the Company paid Ventiv an upfront implementation fee and will pay an agreed upon fixed monthly management fee of approximately $1.8 million, which is subject to adjustment based on actual staffing levels. During the term of the agreement, a portion of Ventiv's monthly management fee will be subject to payment by the Company only to the extent that specified performance objectives are met. The Company will also pay certain pass-through costs of Ventiv incurred in connection with the agreement, which primarily include bonuses, travel costs and certain administrative expenses. The agreement provides for conversion of sales representatives from Ventiv employees to Depomed employees beginning in September 2012 at an agreed-upon cost per employee converted. In June 2012, the Company exercised an early termination clause under the agreement to end the agreement in September 2012 in conjunction with converting the sales representatives to Depomed employees at that time. In May 2012, the Company entered into an additional service agreement with Ventiv that provides for a sales force of 78 part-time sales representatives dedicated to the Company, all of whom are employees of Ventiv. Under the terms of the agreement, the Company paid Ventiv an upfront implementation fee and will pay an agreed upon fixed monthly management fee of approximately $0.5 million, which is subject to adjustment based on actual staffing levels. The term of the agreement is for one year beginning in June 2012. The Company incurred $7.6 million and $14.4 million of expense related to Ventiv under these two agreements for the three and six months ended June 30, 2012. *Abbott Products Inc. (formerly Solvay Pharmaceuticals, Inc.)* In November 2008, the Company entered into an exclusive license agreement with Solvay Pharmaceuticals, Inc. (Solvay) granting Solvay exclusive rights to develop and commercialize Gralise for pain indications in the United States, Canada and Mexico. In February 2010, Abbott Laboratories acquired the pharmaceutical business of Solvay and Abbott Products (Abbott Products), a subsidiary of Abbott Laboratories, became responsible for the Gralise license agreement with the Company. In January 2011, Abbott Products received FDA approval of Gralise for the management of postherpetic neuralgia. This triggered a $48.0 million development milestone from Abbott to the Company, which the Company received in February 2011. As the nonrefundable milestone was substantive in nature, achievement of the milestone was not reasonably assured at the inception of the agreement and the milestone was related to past performance, the Company recognized the entire $48.0 million as revenue in the first quarter of 2011. In January 2011, Abbott Products notified the Company that Abbott Products did not intend to commercialize Gralise. In March 2011, the Company entered into a settlement agreement with Abbott Laboratories which provided for (i) the immediate termination of the Gralise license agreement, (ii) the transition of Gralise back to Depomed; and (iii) a $40.0 million payment to Depomed which the Company received in March 2011. The $40.0 million payment was recognized as a gain within operating income in the first quarter of 2011. Pursuant to the exclusive license agreement originally entered into in November 2008, Solvay paid the Company a $25.0 million upfront fee in February 2009. The upfront payment received was originally being amortized as revenue ratably until January 2013, which represented the estimated length of time the Company’s development and supply obligations existed under the agreement. In connection with the termination of the license agreement with Abbott Products, the Company no longer has continuing obligations to Abbott Products. Accordingly, all remaining deferred revenue related to the $25.0 million upfront license fee previously received from Abbott Products was fully recognized as revenue in March 2011, resulting in immediate recognition of approximately $11.3 million of license revenue in the first quarter of 2011. *Boehringer Ingelheim International GMBH* In March 2011, the Company entered into a license and service agreement with Boehringer Ingelheim International GMBH (Boehringer Ingelheim) granting Boehringer Ingelheim a license to certain patents related to the Company's Acuform drug delivery technology to be used in developing fixed dose combinations of extended release metformin and proprietary Boehringer Ingelheim compounds in development for type 2 diabetes. Under the terms of the agreement, Boehringer Ingelheim was also granted a right of reference to the New Drug Application covering the Company's Glumetza product and associated data for use in potential regulatory submission processes. In connection with the license and service agreement, the Company received an upfront payment of $10.0 million less applicable withholding taxes of approximately $1.5 million, for a net receipt of approximately $8.5 million in April 2011. The Company received the remaining $1.5 million of taxes previously withheld directly from German tax authorities in June 2011. The $10.0 million upfront was amortized ratably through November 2011, which was the estimated length of time Depomed was obligated to perform formulation work under the agreement. Accordingly, the Company recognized approximately $3.9 million and $4.9 million of revenue associated with this upfront license fee during the three and six months ended June 30, 2011, respectively. Under the terms of the agreement, the Company received an additional nonrefundable $2.5 million payment in March 2012 upon delivery of experimental batches of prototype formulations that met required specifications. As the milestone event was substantive in nature, achievement was not reasonably assured at the inception of the agreement and the milestone was related to past performance, the Company recognized the entire amount of this payment as revenue in the first quarter of 2012. The Company is also eligible to receive additional milestone payments based on regulatory filing and approval events, as well as royalties on worldwide net sales of products. Depomed is responsible for providing certain initial formulation work associated with the fixed dose combination products. Work performed by the Company under the service agreement will be reimbursed by Boehringer Ingelheim on an agreed-upon FTE rate per hour plus out-of-pocket expenses. The Company recognized approximately zero million and $0.1 million of revenue associated with the reimbursement of formulation work under the service agreement during the three and six months ended June 30, 2012, respectively. The Company recognized approximately $0.5 million and $0.6 million of revenue associated with the reimbursement of formulation work under the service agreement during the three and six months ended June 30, 2011, respectively. *Ironwood Pharmaceuticals, Inc.* In July 2011, the Company entered into a collaboration and license agreement with Ironwood Pharmaceuticals, Inc. (Ironwood) granting Ironwood a license for worldwide rights to the Company's Acuform drug delivery technology for an undisclosed Ironwood early stage development program. In connection with the agreement, the Company received an upfront payment of $0.9 million which was amortized ratably through June 2012, which was the estimated length of time Depomed was obligated to perform formulation work under the agreement. The Company recognized approximately $0.2 million and $0.5 million of revenue associated with this upfront license fee during the three and six months ended June 30, 2012. There is no remaining deferred revenue related to this upfront payment at June 30, 2012. Under the terms of the agreement, the Company will assist with initial product formulation and Ironwood will be responsible for all development and commercialization of the product. The initial formulation work performed by the Company under the agreement will be reimbursed by Ironwood on an agreed-upon FTE rate per hour plus out-of-pocket expenses. The Company recognized approximately $0.1 million of revenue associated with the reimbursement of formulation work under the agreement during the three and six months ended June 30, 2012. In March 2012, the Company achieved the first milestone under the agreement with respect to delivery of experimental batches of prototype formulations that meet required specifications. The associated $1.0 million milestone payment is nonrefundable and was received in June 2012. As the nonrefundable milestone was substantive in nature, achievement of the milestone was not reasonably assured at the inception of the agreement, the milestone was related to past performance, the Company recognized the $1.0 million as revenue during the first quarter of 2012. Under the terms of the agreement, the Company may receive additional payments pending achievement of certain development and regulatory milestones, as well as royalties on product sales.

NOTE 4. LICENSE AND COLLABORATIVE ARRANGEMENTS

Santarus, Inc.

In August 2011, the Company entered into a commercialization agreement with Santarus granting Santarus exclusive rights to manufacture and commercialize Glumetza in the United States. The commercialization agreement supersedes the previous promotion agreement between the parties originally entered into in July 2008.

Under the commercialization agreement, the Company transitioned to Santarus responsibility for manufacturing, distribution, pharmacovigilance and regulatory affairs. The Company ceased shipments of Glumetza in August 2011 and Santarus began distributing and recording product sales on shipments of Glumetza in September 2011. Santarus will continue to be responsible at its expense for advertising and promotional marketing activities for Glumetza.

Santarus is required to pay the Company royalties on net product sales of Glumetza in the United States of 26.5% in 2011; 29.5% in 2012; 32.0% in 2013 and 2014; and 34.5% in 2015 and beyond prior to generic entry of a Glumetza product. In the event of generic entry of a Glumetza product in the United States, the parties will equally share proceeds based on a gross margin split. Santarus has the exclusive right to commercialize authorized generic versions of the Glumetza products. Santarus will not pay additional sales milestones to the Company as was required under the prior promotion agreement. Royalty revenue from Santarus for the three and six months ended June 30, 2012 was $9.4 million and $18.6 million, respectively.

In connection with its assumption of distribution and sales responsibility of Glumetza, Santarus purchased Depomed’s existing inventory of Glumetza and bulk metformin hydrochloride at cost. Depomed is financially responsible for returns of Glumetza distributed by Depomed, up to the amount of the product returns reserve account for Glumetza product returns on the date immediately before Santarus began distributing Glumetza. Depomed is financially responsible for Glumetza rebates and chargebacks up to the amount of its reserve accounts for those items. Santarus is responsible for all other Glumetza returns, rebates and chargebacks.

Under the commercialization agreement, Depomed is responsible for managing the patent infringement lawsuit against Sun Pharmaceutical Industries, Inc. (Sun) subject to certain consent rights in favor of Santarus, including with regard to any proposed settlements. Santarus will reimburse Depomed for 70% of its out-of-pocket costs, and Depomed will reimburse Santarus for 30% of its out-of-pocket costs related to these two infringement cases. The Company was previously responsible for managing the patent infringement lawsuit against Lupin Limited (Lupin), which was settled in February 2012.

During 2011, Depomed distributed Glumetza for the first eight months of the year, recognized Glumetza product sales on those respective sales and paid Santarus a promotion fee equal to 75% of Glumetza gross margin. For the three and six months ended June , 2011, the Company recognized $11.1 million and $21.3 million, respectively, in promotion fee expense to Santarus related to sales of Glumetza by Depomed. In August 2011, the distribution and sales responsibility transitioned to Santarus, and Depomed no longer recorded sales of Glumetza and no longer was responsible for paying promotion fees to Santarus. Accordingly, there was no promotion fee expense in 2012.

Pursuant to the promotion agreement originally entered into in July 2008, Santarus paid the Company a $12.0 million upfront fee. The upfront payment received was originally being amortized as revenue ratably until October 2021, which represented the estimated length of time the Company's obligations existed under the promotion agreement related to manufacturing Glumetza and paying Santarus promotion fees on gross margin of Glumetza. The commercialization agreement in August 2011 superseded the promotion agreement and removed the manufacturing and promotion fee obligations of the Company. The commercialization agreement includes obligations with respect to manufacturing and regulatory transition to Santarus and managing the ongoing patent infringement lawsuits against Sun and Lupin. These obligations are estimated to be completed in December 2013. Accordingly, on the effective date of the commercialization agreement, the amortization period related to remaining deferred revenue on the $12.0 million upfront fee has been adjusted, and the remaining deferred revenue will be recognized ratably until December 2013. The Company recognized approximately $1.0 million and $2.0 million of license revenue associated with this upfront license fee for the three and six months ended June 30, 2012, respectively. The Company recognized approximately $0.2 million and $0.5 million of license revenue associated with this upfront license fee for the three and six months ended June 30, 2011, respectively. The remaining deferred revenue balance related to this upfront payment is $5.8 million at June 30, 2012.

Ventiv Commercial Services, LLC

In June 2011, the Company entered into a service agreement with Ventiv Commercial Services, LLC (Ventiv), pursuant to which inVentiv Selling Solutions, Ventiv's outsourced sales business, will provide sales force recruiting, training, deployment and ongoing operational support to the Company to promote Gralise. The agreement provides for a sales force of 164 full-time sales representatives dedicated to the Company, all of whom are employees of Ventiv.

Under the terms of the agreement, the Company paid Ventiv an upfront implementation fee and will pay an agreed upon fixed monthly management fee of approximately $1.8 million, which is subject to adjustment based on actual staffing levels. During the term of the agreement, a portion of Ventiv's monthly management fee will be subject to payment by the Company only to the extent that specified performance objectives are met. The Company will also pay certain pass-through costs of Ventiv incurred in connection with the agreement, which primarily include bonuses, travel costs and certain administrative expenses. The agreement provides for conversion of sales representatives from Ventiv employees to Depomed employees beginning in September 2012 at an agreed-upon cost per employee converted. In June 2012, the Company exercised an early termination clause under the agreement to end the agreement in September 2012 in conjunction with converting the sales representatives to Depomed employees at that time.

In May 2012, the Company entered into an additional service agreement with Ventiv that provides for a sales force of 78 part-time sales representatives dedicated to the Company, all of whom are employees of Ventiv. Under the terms of the agreement, the Company paid Ventiv an upfront implementation fee and will pay an agreed upon fixed monthly management fee of approximately $0.5 million, which is subject to adjustment based on actual staffing levels. The term of the agreement is for one year beginning in June 2012.

The Company incurred $7.6 million and $14.4 million of expense related to Ventiv under these two agreements for the three and six months ended June 30, 2012.

Abbott Products Inc. (formerly Solvay Pharmaceuticals, Inc.)

In November 2008, the Company entered into an exclusive license agreement with Solvay Pharmaceuticals, Inc. (Solvay) granting Solvay exclusive rights to develop and commercialize Gralise for pain indications in the United States, Canada and Mexico. In February 2010, Abbott Laboratories acquired the pharmaceutical business of Solvay and Abbott Products (Abbott Products), a subsidiary of Abbott Laboratories, became responsible for the Gralise license agreement with the Company.

In January 2011, Abbott Products received FDA approval of Gralise for the management of postherpetic neuralgia. This triggered a $48.0 million development milestone from Abbott to the Company, which the Company received in February 2011. As the nonrefundable milestone was substantive in nature, achievement of the milestone was not reasonably assured at the inception of the agreement and the milestone was related to past performance, the Company recognized the entire $48.0 million as revenue in the first quarter of 2011.

In January 2011, Abbott Products notified the Company that Abbott Products did not intend to commercialize Gralise. In March 2011, the Company entered into a settlement agreement with Abbott Laboratories which provided for (i) the immediate termination of the Gralise license agreement, (ii) the transition of Gralise back to Depomed; and (iii) a $40.0 million payment to Depomed which the Company received in March 2011. The $40.0 million payment was recognized as a gain within operating income in the first quarter of 2011.

Pursuant to the exclusive license agreement originally entered into in November 2008, Solvay paid the Company a $25.0 million upfront fee in February 2009. The upfront payment received was originally being amortized as revenue ratably until January 2013, which represented the estimated length of time the Company’s development and supply obligations existed under the agreement. In connection with the termination of the license agreement with Abbott Products, the Company no longer has continuing obligations to Abbott Products. Accordingly, all remaining deferred revenue related to the $25.0 million upfront license fee previously received from Abbott Products was fully recognized as revenue in March 2011, resulting in immediate recognition of approximately $11.3 million of license revenue in the first quarter of 2011.

Boehringer Ingelheim International GMBH

In March 2011, the Company entered into a license and service agreement with Boehringer Ingelheim International GMBH (Boehringer Ingelheim) granting Boehringer Ingelheim a license to certain patents related to the Company's Acuform drug delivery technology to be used in developing fixed dose combinations of extended release metformin and proprietary Boehringer Ingelheim compounds in development for type 2 diabetes. Under the terms of the agreement, Boehringer Ingelheim was also granted a right of reference to the New Drug Application covering the Company's Glumetza product and associated data for use in potential regulatory submission processes.

In connection with the license and service agreement, the Company received an upfront payment of $10.0 million less applicable withholding taxes of approximately $1.5 million, for a net receipt of approximately $8.5 million in April 2011. The Company received the remaining $1.5 million of taxes previously withheld directly from German tax authorities in June 2011.

The $10.0 million upfront was amortized ratably through November 2011, which was the estimated length of time Depomed was obligated to perform formulation work under the agreement. Accordingly, the Company recognized approximately $3.9 million and $4.9 million of revenue associated with this upfront license fee during the three and six months ended June 30, 2011, respectively.

Under the terms of the agreement, the Company received an additional nonrefundable $2.5 million payment in March 2012 upon delivery of experimental batches of prototype formulations that met required specifications. As the milestone event was substantive in nature, achievement was not reasonably assured at the inception of the agreement and the milestone was related to past performance, the Company recognized the entire amount of this payment as revenue in the first quarter of 2012. The Company is also eligible to receive additional milestone payments based on regulatory filing and approval events, as well as royalties on worldwide net sales of products.

Depomed is responsible for providing certain initial formulation work associated with the fixed dose combination products. Work performed by the Company under the service agreement will be reimbursed by Boehringer Ingelheim on an agreed-upon FTE rate per hour plus out-of-pocket expenses. The Company recognized approximately zero million and $0.1 million of revenue associated with the reimbursement of formulation work under the service agreement during the three and six months ended June 30, 2012, respectively. The Company recognized approximately $0.5 million and $0.6 million of revenue associated with the reimbursement of formulation work under the service agreement during the three and six months ended June 30, 2011, respectively.

Ironwood Pharmaceuticals, Inc.

In July 2011, the Company entered into a collaboration and license agreement with Ironwood Pharmaceuticals, Inc. (Ironwood) granting Ironwood a license for worldwide rights to the Company's Acuform drug delivery technology for an undisclosed Ironwood early stage development program.

In connection with the agreement, the Company received an upfront payment of $0.9 million which was amortized ratably through June 2012, which was the estimated length of time Depomed was obligated to perform formulation work under the agreement. The Company recognized approximately $0.2 million and $0.5 million of revenue associated with this upfront license fee during the three and six months ended June 30, 2012. There is no remaining deferred revenue related to this upfront payment at June 30, 2012.

Under the terms of the agreement, the Company will assist with initial product formulation and Ironwood will be responsible for all development and commercialization of the product. The initial formulation work performed by the Company under the agreement will be reimbursed by Ironwood on an agreed-upon FTE rate per hour plus out-of-pocket expenses. The Company recognized approximately $0.1 million of revenue associated with the reimbursement of formulation work under the agreement during the three and six months ended June 30, 2012.

In March 2012, the Company achieved the first milestone under the agreement with respect to delivery of experimental batches of prototype formulations that meet required specifications. The associated $1.0 million milestone payment is nonrefundable and was received in June 2012. As the nonrefundable milestone was substantive in nature, achievement of the milestone was not reasonably assured at the inception of the agreement, the milestone was related to past performance, the Company recognized the $1.0 million as revenue during the first quarter of 2012. Under the terms of the agreement, the Company may receive additional payments pending achievement of certain development and regulatory milestones, as well as royalties on product sales.