Subsequent Events	3 Months Ended
Mar. 31, 2017
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events 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 a 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. 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) the approval of the Merger Agreement by the affirmative vote of the holders of at least a majority of all outstanding Shares (the “Shareholder Approval”), (2) there being no judgment or law enjoining or otherwise prohibiting the consummation of the Merger and (3) 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. Until the earlier of the termination of the Merger Agreement and the Effective Time, the Company has agreed to operate its business in the ordinary course of business in all material respects and has agreed to certain other operating covenants and to not take certain specified actions prior to the consummation of the Merger, as set forth more fully in the Merger Agreement. The Company has also agreed to convene and hold a meeting of its shareholders for the purpose of obtaining the Shareholder Approval. In addition, the Merger Agreement requires that, subject to certain exceptions, the Board recommend that the Company’s shareholders approve the Merger Agreement. Shareholder Derivative and Class Action Complaint in Connection with the Merger On May 2, 2017 a shareholder derivative and class action complaint for breach of fiduciary duties in connection with the Merger was filed entitled Robert J. Shannon, Jr., et. al. v. Fresenius Kabi AG et. al. No. 2017-CH-06322 in the Circuit Court of Cook County, Illinois, Chancery Division. The complaint seeks injunctive relief. Defendants intend to vigorously defend this case.

Subsequent Events

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 a 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.

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) the approval of the Merger Agreement by the affirmative vote of the holders of at least a majority of all outstanding Shares (the “Shareholder Approval”), (2) there being no judgment or law enjoining or otherwise prohibiting the consummation of the Merger and (3) 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.

Until the earlier of the termination of the Merger Agreement and the Effective Time, the Company has agreed to operate its business in the ordinary course of business in all material respects and has agreed to certain other operating covenants and to not take certain specified actions prior to the consummation of the Merger, as set forth more fully in the Merger Agreement. The Company has also agreed to convene and hold a meeting of its shareholders for the purpose of obtaining the Shareholder Approval. In addition, the Merger Agreement requires that, subject to certain exceptions, the Board recommend that the Company’s shareholders approve the Merger Agreement.

Shareholder Derivative and Class Action Complaint in Connection with the Merger

On May 2, 2017 a shareholder derivative and class action complaint for breach of fiduciary duties in connection with the Merger was filed entitled Robert J. Shannon, Jr., et. al. v. Fresenius Kabi AG et. al. No. 2017-CH-06322 in the Circuit Court of Cook County, Illinois, Chancery Division. The complaint seeks injunctive relief. Defendants intend to vigorously defend this case.