Financing Receivables - Allowance For Credit Losses Rollforward (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ (5,909)	$ (6,395)
Charge-offs	586	490
Recoveries	0	0
Reclassifications	0	0
Provision	(1,424)	(433)
Currency adjustments	624	139
Ending balance	(6,123)	(6,477)
Chile
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	(5,654)	(6,108)
Charge-offs	583	414
Recoveries	0	0
Reclassifications	0	0
Provision	(1,345)	(361)
Currency adjustments	608	124
Ending balance	(5,808)	(6,179)
Other
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	(255)	(287)
Charge-offs	3	76
Recoveries	0	0
Reclassifications	0	0
Provision	(79)	(72)
Currency adjustments	16	15
Ending balance	$ (315)	$ (298)