Debt - Lines of Credit (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Line of Credit Facility [Line Items]
Credit line capacity	$ 97,756,000
Line of credit	$ 52,077,000	$ 108,710,000
JP Morgan Chase
Line of Credit Facility [Line Items]
Interest rate on borrowings, period end	3.69%
Credit line capacity	$ 75,000,000
Line of credit	$ 44,750,000	105,198,000
Itau Bank
Line of Credit Facility [Line Items]
Interest rate on borrowings, period end	5.50%
Credit line capacity	$ 1,810,000
Line of credit	$ 472,000	232,000
Bank of Chile
Line of Credit Facility [Line Items]
Interest rate on borrowings, period end	6.60%
Credit line capacity	$ 3,800,000
Line of credit	$ 851,000	432,000
BICE Bank
Line of Credit Facility [Line Items]
Interest rate on borrowings, period end	5.50%
Credit line capacity	$ 2,500,000
Line of credit	$ 1,429,000	818,000
BBVA Bank
Line of Credit Facility [Line Items]
Interest rate on borrowings, period end	5.50%
Credit line capacity	$ 3,250,000
Line of credit	$ 11,000	858,000
Security Bank
Line of Credit Facility [Line Items]
Interest rate on borrowings, period end	5.50%
Credit line capacity	$ 588,000
Line of credit	$ 588,000	0
Estado Bank
Line of Credit Facility [Line Items]
Interest rate on borrowings, period end	5.50%
Credit line capacity	$ 3,500,000
Line of credit	$ 1,365,000	308,000
Santander Bank
Line of Credit Facility [Line Items]
Interest rate on borrowings, period end	5.50%
Credit line capacity	$ 4,500,000
Line of credit	$ 1,943,000	852,000
Scotiabank
Line of Credit Facility [Line Items]
Interest rate on borrowings, period end	5.00%
Credit line capacity	$ 1,800,000
Line of credit	$ 668,000	2,000
Banco De Sabadell
Line of Credit Facility [Line Items]
Interest rate on borrowings, period end	1.45%
Credit line capacity	$ 336,000
Line of credit	$ 0	0
Banco Bilbao Vizcaya
Line of Credit Facility [Line Items]
Interest rate on borrowings, period end	2.45%
Credit line capacity	$ 336,000
Line of credit	$ 0	0
Santander Bank
Line of Credit Facility [Line Items]
Interest rate on borrowings, period end	1.40%
Credit line capacity	$ 336,000
Line of credit	$ 0	$ 10,000