Discontinued Operations - Schedule of Gain on Sale of Business (Details) - Discontinued operations, disposed of by sale - International operations - USD ($)	Sep. 01, 2016	Dec. 31, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration received	$ 80,000,000
Cash included in assets sold	(4,250,000)	$ (159,000)
Transaction costs	(5,960,000)
Net cash proceeds	69,790,000
Product supply obligation	(1,927,000)
Working capital adjustment	(2,295,000)
Carrying value of business and assets sold	(57,633,000)
Net gain on sale of business	$ 7,935,000