Revenue Recognition - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 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	$ 85,894	$ 93,128	$ 266,799	$ 291,150
Selling, General and Administrative Expenses [Member]
Disaggregation Of Revenue [Line Items]
Cost of sales	2,000	2,100	6,200	7,400
Cost of Sales [Member]
Disaggregation Of Revenue [Line Items]
Cost of sales	$ 1,300	$ 1,400	$ 4,300	$ 4,200