Supplemental Financial Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Condensed Financial Statements, Captions [Line Items]
Gain from antitrust litigation settlement	$ (4,231)	$ 0	$ 0
Gain on sale of property, plant and equipment	(3,087)	(5,329)	0
Lease income	(948)	0	0
Depreciation on leased assets	3,512	0	0
Indemnity claim settlement from acquisitions	(700)	0	0
Economic incentive grants	(556)	0	0
Other operating income (expense)	(3,087)	(5,329)	0
Global Headquarters Move
Condensed Financial Statements, Captions [Line Items]
Gain on sale of property, plant and equipment	$ (164)	$ (5,329)	$ 0