Sale of Manufacturing Operations (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2017 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Description and Timing of Disposal	On August 30, 2015, the Company completed the sale of its manufacturing operations to Cartamundi NV (“Cartamundi”)
Disposal Group, Including Discontinued Operation, Consideration	$ 54,400
(Payments for) Proceeds from Productive Assets	$ 18,600
Disposal Group, Including Discontinued Operation, Segment that Includes Disposal Group	Global Operations
Nonoperating Income (Expense) [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal	$ 6,573
Selling, General and Administrative Expenses [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal	$ 3,061