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Revenue - Schedule of Deferred Charges Activity (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019 USD ($)
Deferred charges beginning balance	$ 1,438
Additions during the period	211
Recognized as cost of sales	(282)
Deferred charges ending balance	1,367
March 31, 2020 [Member]
Recognized as cost of sales	712
March 31, 2021 [Member]
Recognized as cost of sales	483	[1]
March 31, 2022 and Thereafter [Member]
Recognized as cost of sales	$ 172	[1]
[1] Amounts included in other assets in the Company's unaudited condensed consolidated balance sheets at March 31, 2019.

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