Summary of Significant Accounting Policies and Other Information - Schedule of Inventory, Current (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Inventories
Raw materials	$ 94,739		$ 90,877
Work in process	3,079		2,390
Finished goods	21,120		18,077
Total inventories	118,938		111,344
Inventory allowance	(4,263)		(5,730)
Inventories, net	114,675		$ 105,614
Inventory Allowance
Balance at beginning of period	5,730	$ 6,227
Charged to expense	560	1,830
Write-offs	(2,027)	(1,934)
Balance at end of period	$ 4,263	$ 6,123