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Discontinued Operations
 12 Months Ended
Dec. 31, 2013
Discontinued Operations and Disposal Groups [Abstract]  
Discontinued Operations
Discontinued Operations

Avinza Product Line

On September 6, 2006, the Company and King, now a subsidiary of Pfizer, entered into a purchase agreement, or the Avinza Purchase Agreement, pursuant to which Pfizer acquired all of the Company's rights in and to Avinza in the United States, its territories and Canada, including, among other things, all Avinza inventory, records and related intellectual property, and assume certain liabilities as set forth in the Avinza Purchase Agreement. Pursuant to the terms of the Avinza Purchase Agreement, the Company retained the liability for returns of product from wholesalers that had been sold by the Company prior to the close of this transaction. Accordingly, as part of the accounting for the gain on the sale of Avinza, the Company recorded a reserve for Avinza product returns. For the years ended December 31, 2013, 2012 and 2011, the Company recognized pre-tax gains of $2.6 million, $3.7 million and $0, respectively, due to subsequent changes in certain estimates of assets and liabilities recorded as of the sale date. Cash used in operating activities of discontinued operations related to a settlement agreement with a wholesaler for the years ended December 31, 2013, 2012 and 2011 was $0.6 million, $0.9 million, and $0, respectively.