Nature of Operations and Summary of Significant Accounting Policies - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018	Jul. 01, 2019	Dec. 29, 2018
New Accounting Pronouncement, Early Adoption [Line Items]
Maximum Receivables To Be Factored	$ 100,000		$ 100,000
Decrease in receivables due to factoring			76,000	$ 11,000
Decrease to accounts receivable			204,000		$ 128,000
Cost of factoring programs	$ 1,700	$ 800	$ 4,700	$ 2,700
Accounting Standards Update 2017-12
New Accounting Pronouncement, Early Adoption [Line Items]
Cumulative adjustment					(981)	$ (1,962)
Accounting Standards Update 2017-12 | Retained earnings
New Accounting Pronouncement, Early Adoption [Line Items]
Cumulative adjustment					$ (981)	$ (1,962)	$ 1,000