Financing Receivables - Allowance For Credit Losses Rollforward (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ (6,395)	$ (6,472)	$ (7,086)
Charge-offs	1,952	1,482	2,238
Recoveries	0	(675)	(24)
Provision	(1,942)	(1,407)	(1,088)
Currency adjustments	476	677	(512)
Ending balance	(5,909)	(6,395)	(6,472)
Chile
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	(6,108)	(6,107)	(6,209)
Charge-offs	1,453	1,428	1,910
Recoveries	0	(675)	(24)
Provision	(1,479)	(1,424)	(1,309)
Currency adjustments	480	670	(475)
Ending balance	(5,654)	(6,108)	(6,107)
Other
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	(287)	(365)	(877)
Charge-offs	499	54	328
Recoveries	0	0	0
Provision	(463)	17	221
Currency adjustments	(4)	7	(37)
Ending balance	$ (255)	$ (287)	$ (365)