Revenue Recognition - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Disaggregation Of Revenue [Line Items]
Type of Cost, Good or Service [Extensible List]	us-gaap:ShippingAndHandlingMember	us-gaap:ShippingAndHandlingMember	us-gaap:ShippingAndHandlingMember	us-gaap:ShippingAndHandlingMember
Cost of sales	$ 87,349	$ 92,569	$ 180,905	$ 198,022
Selling, General and Administrative Expenses [Member]
Disaggregation Of Revenue [Line Items]
Cost of sales	2,000	2,600	4,100	5,300
Cost of Sales [Member]
Disaggregation Of Revenue [Line Items]
Cost of sales	$ 1,500	$ 1,400	$ 2,900	$ 2,800