Collaboration Agreements	6 Months Ended
Dec. 31, 2015
Collaboration Agreements [Abstract]
Collaboration agreements [Text Block]	COLLABORATION AGREEMENTS AND OTHER CONTRACTUAL ARRANGEMENTS We actively collaborate with other pharmaceutical companies to develop, manufacture and market certain products or groups of products. These types of agreements are common in the pharmaceutical industry. We may choose to enter into these types of agreements to, among other things, leverage our or others’ scientific research and development expertise or utilize our extensive marketing and distribution resources. Terms of the various collaboration agreements may require us to make or receive milestone payments upon the achievement of certain product research and development objectives and pay or receive royalties on the future sale, if any, of commercial products resulting from the collaboration. Milestone and up-front payments made are generally recorded in research and development expense if the payments relate to drug candidates that have not yet received regulatory approval. Milestone and up-front payments made related to approved drugs will generally be capitalized and amortized to cost of goods sold over the economic life of the product. Royalties received are generally reflected as revenues, and royalties paid are generally reflected as cost of goods sold. We enter into a number of collaboration agreements in the ordinary course of business. Although we do not consider these arrangements to be material, the following is a brief description of notable agreements entered into during the fiscal years ended June 27, 2015, June 28, 2014, and June 29, 2013. We did not enter into any collaborative arrangements during the six months ended December 31, 2015. Fiscal Year Ended June 27, 2015 In May 2015, we entered into a development agreement wherein we transferred the ownership rights to two pharmaceutical products to a clinical stage development company to fund and conduct development activities for the products. We do not expect to incur any expense related to the development of either product. If the products are approved by the FDA, we will execute a buy-back agreement to purchase each product for a multiple of the development costs incurred. Based on the initial development budget for each product, the estimated purchase price for both products is approximately $78.0 million. If development costs exceed the initial budgeted amounts, the purchase price will increase but will not exceed approximately $105.0 million. If the products are approved by the FDA and we purchase the products, we estimate the acquisitions will occur in 2019 and 2020. In May 2015, we entered into an agreement with a clinical stage biotechnology company for the development of two specialty pharmaceutical products. We paid $18.0 million for an option to acquire the two products after the completion of Phase 3 clinical trials for one of the products. The $18.0 million fee is reported in research and development expense. If we exercise the purchase option to acquire both products, we would expect to make contingent payments if we obtain regulatory approval and achieve certain sales milestones. The contingent milestone payments could total $30.0 million in aggregate. If we do not exercise the purchase option for the first product, we may elect to acquire only the second product and would be subject to potential milestone payments up to $17.5 million. We will also be obligated to make certain royalty payments over periods ranging from seven to ten years from the launch of each product. In December 2014, we entered into a collaboration agreement with a clinical stage biotechnology company, pursuant to which the parties will collaborate in the ongoing development of a topical OTC drug product. We will provide assistance including non-clinical, clinical, and manufacturing activities in support of an NDA submission to the FDA. As part of the agreement, we paid $10.0 million for an exclusive option to purchase and license certain assets as specified in separate asset purchase and license agreements. The $10.0 million fee is reported in Research and development expense. If the product is successful in Phase 3 clinical trials, we are required to make an additional option payment of $5.0 million. If we exercise our purchase option, we will be required to pay a purchase price of $10.0 million as well as certain contingent milestone payments, which could total $50.0 million in aggregate. Fiscal Year Ended June 28, 2014 As a result of the Elan acquisition, we acquired a collaborative arrangement with Transition related to the joint development and commercialization of ELND005 (Scyllo-inositol). During the third quarter of the fiscal year ended June 28, 2014, we announced that we had entered into an agreement with Transition to progress the clinical development of ELND005 in a number of important indications including Alzheimer's disease, bipolar disorder and Down syndrome. As part of the agreement, Transition acquired all of the shares of a wholly owned, indirect Irish subsidiary of Perrigo, which had previously been responsible for carrying out all development activities associated with ELND005. Upon closing on February 28, 2014, Transition is solely responsible for all ongoing development activities and costs associated with ELND005. We are eligible to receive milestone payments ranging from $10.0 million to $15.0 million should ELND005 achieve approval of the ANDA as well as specific worldwide net sales hurdles. If a product were to be commercialized, we would be entitled to receive a royalty of 6.5% of net sales for the life of the product. Fiscal Year Ended June 29, 2013 In November 2012, we entered into a joint development agreement with another generic pharmaceutical company pursuant to which we are to provide research and development and future manufacturing services for a generic version of a specified prescription pharmaceutical. We are entitled to receive various milestone payments throughout the development period, which will be recognized in accordance with the milestone method. During the fiscal year ended June 29, 2013, we recognized revenue of $0.8 million upon completion of a milestone under this agreement. We are entitled to receive additional individual milestone payments ranging from $0.5 million to $2.0 million for achieving other specified milestones, including but not limited to completion of bioequivalence studies, FDA acceptance of the ANDA, and FDA approval of the ANDA. If the product is approved, we may receive combined total milestone payments ranging from $3.8 million to $5.5 million depending upon various market conditions at the time of generic market formation. Also in accordance with the agreement, the parties will share in development costs and future profits associated with the manufacture and sale of the generic prescription pharmaceutical product. Additional future milestone payments and receipts related to agreements not specifically discussed above are not material.

COLLABORATION AGREEMENTS AND OTHER CONTRACTUAL ARRANGEMENTS

We actively collaborate with other pharmaceutical companies to develop, manufacture and market certain products or groups of products. These types of agreements are common in the pharmaceutical industry. We may choose to enter into these types of agreements to, among other things, leverage our or others’ scientific research and development expertise or utilize our extensive marketing and distribution resources. Terms of the various collaboration agreements may require us to make or receive milestone payments upon the achievement of certain product research and development objectives and pay or receive royalties on the future sale, if any, of commercial products resulting from the collaboration. Milestone and up-front payments made are generally recorded in research and development expense if the payments relate to drug candidates that have not yet received regulatory approval. Milestone and up-front payments made related to approved drugs will generally be capitalized and amortized to cost of goods sold over the economic life of the product. Royalties received are generally reflected as revenues, and royalties paid are generally reflected as cost of goods sold. We enter into a number of collaboration agreements in the ordinary course of business. Although we do not consider these arrangements to be material, the following is a brief description of notable agreements entered into during the fiscal years ended June 27, 2015, June 28, 2014, and June 29, 2013. We did not enter into any collaborative arrangements during the six months ended December 31, 2015.

Fiscal Year Ended June 27, 2015

In May 2015, we entered into a development agreement wherein we transferred the ownership rights to two pharmaceutical products to a clinical stage development company to fund and conduct development activities for the products. We do not expect to incur any expense related to the development of either product. If the products are approved by the FDA, we will execute a buy-back agreement to purchase each product for a multiple of the development costs incurred. Based on the initial development budget for each product, the estimated purchase price for both products is approximately $78.0 million. If development costs exceed the initial budgeted amounts, the purchase price will increase but will not exceed approximately $105.0 million. If the products are approved by the FDA and we purchase the products, we estimate the acquisitions will occur in 2019 and 2020.

In May 2015, we entered into an agreement with a clinical stage biotechnology company for the development of two specialty pharmaceutical products. We paid $18.0 million for an option to acquire the two products after the completion of Phase 3 clinical trials for one of the products. The $18.0 million fee is reported in research and development expense. If we exercise the purchase option to acquire both products, we would expect to make contingent payments if we obtain regulatory approval and achieve certain sales milestones. The contingent milestone payments could total $30.0 million in aggregate. If we do not exercise the purchase option for the first product, we may elect to acquire only the second product and would be subject to potential milestone payments up to $17.5 million. We will also be obligated to make certain royalty payments over periods ranging from seven to ten years from the launch of each product.

In December 2014, we entered into a collaboration agreement with a clinical stage biotechnology company, pursuant to which the parties will collaborate in the ongoing development of a topical OTC drug product. We will provide assistance including non-clinical, clinical, and manufacturing activities in support of an NDA submission to the FDA. As part of the agreement, we paid $10.0 million for an exclusive option to purchase and license certain assets as specified in separate asset purchase and license agreements. The $10.0 million fee is reported in Research and development expense. If the product is successful in Phase 3 clinical trials, we are required to make an additional option payment of $5.0 million. If we exercise our purchase option, we will be required to pay a purchase price of $10.0 million as well as certain contingent milestone payments, which could total $50.0 million in aggregate.

Fiscal Year Ended June 28, 2014

As a result of the Elan acquisition, we acquired a collaborative arrangement with Transition related to the joint development and commercialization of ELND005 (Scyllo-inositol). During the third quarter of the fiscal year ended June 28, 2014, we announced that we had entered into an agreement with Transition to progress the clinical development of ELND005 in a number of important indications including Alzheimer's disease, bipolar disorder and Down syndrome. As part of the agreement, Transition acquired all of the shares of a wholly owned, indirect Irish subsidiary of Perrigo, which had previously been responsible for carrying out all development activities associated with ELND005. Upon closing on February 28, 2014, Transition is solely responsible for all ongoing development activities and costs associated with ELND005. We are eligible to receive milestone payments ranging from $10.0 million to $15.0 million should ELND005 achieve approval of the ANDA as well as specific worldwide net sales hurdles. If a product were to be commercialized, we would be entitled to receive a royalty of 6.5% of net sales for the life of the product.

Fiscal Year Ended June 29, 2013

In November 2012, we entered into a joint development agreement with another generic pharmaceutical company pursuant to which we are to provide research and development and future manufacturing services for a generic version of a specified prescription pharmaceutical. We are entitled to receive various milestone payments throughout the development period, which will be recognized in accordance with the milestone method. During the fiscal year ended June 29, 2013, we recognized revenue of $0.8 million upon completion of a milestone under this agreement. We are entitled to receive additional individual milestone payments ranging from $0.5 million to $2.0 million for achieving other specified milestones, including but not limited to completion of bioequivalence studies, FDA acceptance of the ANDA, and FDA approval of the ANDA. If the product is approved, we may receive combined total milestone payments ranging from $3.8 million to $5.5 million depending upon various market conditions at the time of generic market formation. Also in accordance with the agreement, the parties will share in development costs and future profits associated with the manufacture and sale of the generic prescription pharmaceutical product.

Additional future milestone payments and receipts related to agreements not specifically discussed above are not material.