Share-Based Compensation - Schedule of Compensation Cost for Performance Share Units (Details) - Performance Shares Units - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total expense before income taxes	$ 2,173	$ 1,971	$ 3,545	$ 3,831
Income tax benefit	(203)	(388)	(251)	(705)
Total expense after income taxes	1,970	1,583	3,294	3,126
Cost of goods sold
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total expense before income taxes	0	0	0	0
Selling, general and administrative expenses
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total expense before income taxes	$ 2,173	$ 1,971	$ 3,545	$ 3,831