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Nature of Operations and Summary of Significant Accounting Policies - Additional Information (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018	Dec. 29, 2018
Accounting Policies [Abstract]
Decrease in receivables due to factoring	$ 24,000	$ 25,500
Accounting Standards Update 2017-12
New Accounting Pronouncement, Early Adoption [Line Items]
Cumulative effect			$ 981
Accounting Standards Update 2017-12 | Retained earnings
New Accounting Pronouncement, Early Adoption [Line Items]
Cumulative effect			$ 981	$ 1,000

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Decrease In Receivables Due To Factoring

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Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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