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Basis of Presentation and Summary of Significant Accounting Policies - Narrative (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jan. 01, 2019
Concentration Risk [Line Items]
Lease liability	$ 7,054
ARGENTINA \| Subsidiaries
Concentration Risk [Line Items]
Net assets	$ 7,500
Sales Revenue, Net \| Geographic Concentration Risk \| ARGENTINA
Concentration Risk [Line Items]
Concentration risk percentage	11.00%	11.00%
Accounting Standards Update 2016-02
Concentration Risk [Line Items]
Right-of-use asset			$ 7,300
Lease liability			$ 7,300