Segmented Information - Revenue by Reportable Segment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Segment Reporting Information [Line Items]
Service fee and commission income	$ 9,815	$ 9,651
Other income	145	213
Rental income	3,341	3,348
Total revenues	13,301	13,212
Operating Segments
Segment Reporting Information [Line Items]
Total revenues	13,301	13,206
Not allocated to segments
Segment Reporting Information [Line Items]
Rental income	0
Rental income		6
Extended Warranty | Operating Segments
Segment Reporting Information [Line Items]
Service fee and commission income	9,815	9,651
Other income	75	66
Total revenues	9,890	9,717
Leased Real Estate | Operating Segments
Segment Reporting Information [Line Items]
Other income	70	147
Rental income	3,341
Rental income		3,342
Total revenues	$ 3,411	$ 3,489