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Basis of Presentation and Significant Accounting Policies - Schedule of Effect of New Accounting Pronouncements (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Inventories, net	$ 69,382	$ 72,860	$ 76,420
Deferred revenue	116	473	4,703
Retained earnings	$ 16,860	107,593	106,923
Calculated under Revenue Guidance in Effect before Topic 606
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Inventories, net			76,420
Deferred revenue			4,703
Retained earnings			$ 106,923
Accounting Standards Update 2014-09 | Difference between Revenue Guidance in Effect before and after Topic 606
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Inventories, net		(3,560)
Deferred revenue		(4,230)
Retained earnings		$ 670

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