Financing Receivables - Summary of Aging of Financing Receivables (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Financing Receivable, Past Due [Line Items]
Total past due (on non-accrual status)	$ 11,419	$ 15,600
Not past due	19,441	13,256
Total financing receivables	30,860	28,856
Chile
Financing Receivable, Past Due [Line Items]
Total past due (on non-accrual status)	10,839	13,982
Not past due	17,563	12,556
Total financing receivables	28,402	26,538
Other
Financing Receivable, Past Due [Line Items]
Total past due (on non-accrual status)	580	1,618
Not past due	1,878	700
Total financing receivables	2,458	2,318
Amounts past due less than one year
Financing Receivable, Past Due [Line Items]
Amount past due	8,632	12,243
Amounts past due less than one year | Chile
Financing Receivable, Past Due [Line Items]
Amount past due	8,289	10,687
Amounts past due less than one year | Other
Financing Receivable, Past Due [Line Items]
Amount past due	343	1,556
Amounts past due one year or greater
Financing Receivable, Past Due [Line Items]
Amount past due	2,787	3,357
Amounts past due one year or greater | Chile
Financing Receivable, Past Due [Line Items]
Amount past due	2,550	3,295
Amounts past due one year or greater | Other
Financing Receivable, Past Due [Line Items]
Amount past due	$ 237	$ 62