Business and Basis of Presentation	3 Months Ended
Mar. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Business and Basis of Presentation	Business and Basis of Presentation Business: Akorn, Inc., together with its wholly-owned subsidiaries (collectively “Akorn,” the “Company,” “we,” “our” or “us”) is a specialty generic pharmaceutical company that develops, manufactures and markets generic and branded prescription pharmaceuticals, branded as well as private-label over-the-counter consumer health products and animal health pharmaceuticals. We are an industry leader in the development, manufacturing and marketing of specialized generic pharmaceutical products in alternative dosage forms. We focus on difficult-to-manufacture sterile and non-sterile dosage forms including, but not limited to, ophthalmics, injectables, oral liquids, otics, topicals, inhalants and nasal sprays. Akorn is a Louisiana corporation founded in 1971 in Abita Springs, Louisiana. In 1997, we relocated our corporate headquarters to the Chicago, Illinois area and currently maintain our principal corporate offices in Lake Forest, Illinois. We operate pharmaceutical manufacturing facilities in Decatur, Illinois; Somerset, New Jersey; Amityville, New York; Hettlingen, Switzerland; and Paonta Sahib, Himachal Pradesh, India. We operate a central distribution warehouse in Gurnee, Illinois and additional distribution facilities in Amityville, New York and Decatur, Illinois. Our research and development (“R&D”) centers are located in Vernon Hills, Illinois and Cranbury, New Jersey. We maintain other corporate offices in Ann Arbor, Michigan and Gurgaon, Haryana, India. During the three month periods ended March 31, 2018 and 2017, the Company reported results for two reportable segments: Prescription Pharmaceuticals and Consumer Health. For further detail concerning our reportable segments please see Part I, Item 1, Note 10 - “Segment Information.” Our common shares are traded on The NASDAQ Global Select Market under the ticker symbol AKRX. Our principal corporate office is located at 1925 West Field Court Suite 300, Lake Forest, Illinois 60045 with telephone number (847) 279-6100. Merger Agreement: On April 24, 2017, the Company entered into an Agreement and Plan of Merger (the “Merger Agreement”) with Fresenius Kabi AG, a German stock corporation (“Parent”), Quercus Acquisition, Inc., a Louisiana corporation and wholly-owned subsidiary of Parent (“Merger Sub”) and, solely for purposes of Article VIII thereof, Fresenius SE & Co. KGaA, a German partnership limited by shares. The Merger Agreement, which has been adopted by the Board of Directors of the Company, provides for the merger of Merger Sub with and into the Company (the “Merger”), with the Company surviving the Merger as a wholly-owned subsidiary of Parent. On July 19, 2017, the Company's shareholders voted to approve the Merger Agreement. Subject to the terms and conditions set forth in the Merger Agreement, at the effective time of the Merger (the “Effective Time”), each of the Company’s issued and outstanding shares of common stock, no par value per share (the “Shares”) (other than Shares owned by the Company or by Parent, Merger Sub or any direct or indirect wholly-owned subsidiary of the Company or of Parent (other than Merger Sub) immediately prior to the Effective Time), will be converted into the right to receive $34.00 in cash per Share (the “Merger Consideration”), without interest. Completion of the Merger is subject to customary closing conditions, including (1) there being no judgment or law enjoining or otherwise prohibiting the consummation of the Merger and (2) the expiration of the waiting period applicable to the Merger under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended. The obligation of each of the Company and Parent to consummate the Merger is also conditioned on the other party’s representations and warranties being true and correct (subject to certain materiality exceptions) and the other party having performed in all material respects its obligations under the Merger Agreement. The Merger Agreement contains representations and warranties and covenants of the parties customary for a transaction of this nature. Among other things, Parent has agreed to promptly take all actions necessary to obtain antitrust approval of the Merger, including (i) entering into consent decrees or undertakings with a regulatory authority, (ii) divesting or holding separate any assets or businesses of Parent or the Company, (iii) terminating existing contractual relationships or entering into new contractual relationships, (iv) effecting any other change or restructuring of Parent or the Company and (v) defending through litigation any claim asserted by a regulatory authority that would prevent the closing of the Merger. On April 22, 2018, Fresenius Kabi AG delivered to Akorn a letter purporting to terminate the Merger Agreement. On April 23, 2018, Akorn filed a verified complaint entitled Akorn, Inc. v. Fresenius Kabi AG, Quercus Acquisition, Inc. and Fresenius SE & Co. KGaA, in the Court of Chancery of the State of Delaware for breach of contract and declaratory judgment. The complaint alleges, among other things, that (i) the defendants anticipatorily breached their obligations under the Merger Agreement by repudiating their obligation to close the Merger, (ii) the defendants knowingly and intentionally breached their obligations under the Merger Agreement by working to slow the antitrust approval process and by engaging in a series of actions designed to hamper and ultimately block the Merger and (iii) Akorn has performed its obligations under the Merger Agreement, and is ready, willing and able to close the Merger. The complaint seeks, among other things, a declaration that Fresenius Kabi AG's termination is invalid, an order enjoining the defendants from terminating the Merger Agreement, and an order compelling the defendants to specifically perform their obligations under the Merger Agreement to use reasonable best efforts to consummate and make effective the Merger. Basis of Presentation: The Company’s financial statements have been prepared in accordance with accounting principles generally accepted in the United States ("GAAP") for interim financial information and accordingly do not include all the information and footnotes required by GAAP for annual financial statements. In the opinion of management, all adjustments of a normal and recurring nature considered necessary for a fair presentation have been included in these financial statements. Operating results for the three month period ended March 31, 2018 are not necessarily indicative of the results that may be expected for the full year. For further information, refer to the consolidated financial statements and footnotes for the year ended December 31, 2017, included in the Company’s Annual Report on Form 10-K filed on February 28, 2018.

Business and Basis of Presentation

Business: Akorn, Inc., together with its wholly-owned subsidiaries (collectively “Akorn,” the “Company,” “we,” “our” or “us”) is a specialty generic pharmaceutical company that develops, manufactures and markets generic and branded prescription pharmaceuticals, branded as well as private-label over-the-counter consumer health products and animal health pharmaceuticals. We are an industry leader in the development, manufacturing and marketing of specialized generic pharmaceutical products in alternative dosage forms. We focus on difficult-to-manufacture sterile and non-sterile dosage forms including, but not limited to, ophthalmics, injectables, oral liquids, otics, topicals, inhalants and nasal sprays.

Akorn is a Louisiana corporation founded in 1971 in Abita Springs, Louisiana. In 1997, we relocated our corporate headquarters to the Chicago, Illinois area and currently maintain our principal corporate offices in Lake Forest, Illinois. We operate pharmaceutical manufacturing facilities in Decatur, Illinois; Somerset, New Jersey; Amityville, New York; Hettlingen, Switzerland; and Paonta Sahib, Himachal Pradesh, India. We operate a central distribution warehouse in Gurnee, Illinois and additional distribution facilities in Amityville, New York and Decatur, Illinois. Our research and development (“R&D”) centers are located in Vernon Hills, Illinois and Cranbury, New Jersey. We maintain other corporate offices in Ann Arbor, Michigan and Gurgaon, Haryana, India.

During the three month periods ended March 31, 2018 and 2017, the Company reported results for two reportable segments: Prescription Pharmaceuticals and Consumer Health. For further detail concerning our reportable segments please see Part I, Item 1, Note 10 - “Segment Information.”

Our common shares are traded on The NASDAQ Global Select Market under the ticker symbol AKRX. Our principal corporate office is located at 1925 West Field Court Suite 300, Lake Forest, Illinois 60045 with telephone number (847) 279-6100.

Merger Agreement: On April 24, 2017, the Company entered into an Agreement and Plan of Merger (the “Merger Agreement”) with Fresenius Kabi AG, a German stock corporation (“Parent”), Quercus Acquisition, Inc., a Louisiana corporation and wholly-owned subsidiary of Parent (“Merger Sub”) and, solely for purposes of Article VIII thereof, Fresenius SE & Co. KGaA, a German partnership limited by shares. The Merger Agreement, which has been adopted by the Board of Directors of the Company, provides for the merger of Merger Sub with and into the Company (the “Merger”), with the Company surviving the Merger as a wholly-owned subsidiary of Parent. On July 19, 2017, the Company's shareholders voted to approve the Merger Agreement.

Subject to the terms and conditions set forth in the Merger Agreement, at the effective time of the Merger (the “Effective Time”), each of the Company’s issued and outstanding shares of common stock, no par value per share (the “Shares”) (other than Shares owned by the Company or by Parent, Merger Sub or any direct or indirect wholly-owned subsidiary of the Company or of Parent (other than Merger Sub) immediately prior to the Effective Time), will be converted into the right to receive $34.00 in cash per Share (the “Merger Consideration”), without interest.

Completion of the Merger is subject to customary closing conditions, including (1) there being no judgment or law enjoining or otherwise prohibiting the consummation of the Merger and (2) the expiration of the waiting period applicable to the Merger under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended. The obligation of each of the Company and Parent to consummate the Merger is also conditioned on the other party’s representations and warranties being true and correct (subject to certain materiality exceptions) and the other party having performed in all material respects its obligations under the Merger Agreement.

The Merger Agreement contains representations and warranties and covenants of the parties customary for a transaction of this nature. Among other things, Parent has agreed to promptly take all actions necessary to obtain antitrust approval of the Merger, including (i) entering into consent decrees or undertakings with a regulatory authority, (ii) divesting or holding separate any assets or businesses of Parent or the Company, (iii) terminating existing contractual relationships or entering into new contractual relationships, (iv) effecting any other change or restructuring of Parent or the Company and (v) defending through litigation any claim asserted by a regulatory authority that would prevent the closing of the Merger.

On April 22, 2018, Fresenius Kabi AG delivered to Akorn a letter purporting to terminate the Merger Agreement. On April 23, 2018, Akorn filed a verified complaint entitled Akorn, Inc. v. Fresenius Kabi AG, Quercus Acquisition, Inc. and Fresenius SE & Co. KGaA, in the Court of Chancery of the State of Delaware for breach of contract and declaratory judgment. The complaint alleges, among other things, that (i) the defendants anticipatorily breached their obligations under the Merger Agreement by repudiating their obligation to close the Merger, (ii) the defendants knowingly and intentionally breached their obligations under the Merger Agreement by working to slow the antitrust approval process and by engaging in a series of actions designed to hamper and ultimately block the Merger and (iii) Akorn has performed its obligations under the Merger Agreement, and is ready, willing and able to close the Merger. The complaint seeks, among other things, a declaration that Fresenius Kabi AG's termination is invalid, an order enjoining the defendants from terminating the Merger Agreement, and an order compelling the defendants to specifically perform their obligations under the Merger Agreement to use reasonable best efforts to consummate and make effective the Merger.

Basis of Presentation: The Company’s financial statements have been prepared in accordance with accounting principles generally accepted in the United States ("GAAP") for interim financial information and accordingly do not include all the information and footnotes required by GAAP for annual financial statements. In the opinion of management, all adjustments of a normal and recurring nature considered necessary for a fair presentation have been included in these financial statements. Operating results for the three month period ended March 31, 2018 are not necessarily indicative of the results that may be expected for the full year. For further information, refer to the consolidated financial statements and footnotes for the year ended December 31, 2017, included in the Company’s Annual Report on Form 10-K filed on February 28, 2018.