Discontinued Operations - Additional Information (Details)		3 Months Ended		9 Months Ended
	Sep. 01, 2016 USD ($) option	Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Repayments of lines of credit				$ 110,840,000	$ 110,354,000
Revenues		$ 26,711,000	$ 31,687,000	93,158,000	99,597,000
Cost of revenues		10,849,000	10,029,000	31,651,000	35,174,000
Globus facility agreement | Line of credit
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Line of credit, expiration period	5 years
Maximum borrowing capacity	$ 30,000,000
Deerfield facility agreement and amended credit facility | Line of credit
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Repayments of lines of credit	$ 69,000,000
Supply agreement [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Contracts revenue (less than)		100,000		100,000
Cost of sales on contract revenues		100,000		100,000
Discontinued operations, disposed of by sale | International operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Noncompete agreement term	2 years
Consideration received	$ 80,000,000
Supply commitment term	3 years
Supply agreement, number of annual options to extend | option	2
Supply obligation credit	$ 3,900,000
Supply obligation credit term	6 months
Interest expense, debt excluding amortization		2,156,000	2,142,000	7,240,000	6,504,000
Discontinued operations, disposed of by sale | International operations | Deerfield facility agreement and amended credit facility
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Interest expense, debt excluding amortization		2,200,000	2,100,000	7,200,000	6,500,000
International
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenues		1,400,000	4,200,000	8,900,000	13,500,000
Cost of revenues		$ 1,800,000	$ 3,500,000	$ 8,900,000	$ 13,500,000