Financial Instruments - Credit Losses (Tables)

3 Months Ended

Mar. 31, 2020

Credit Loss [Abstract]

Financing Receivable Credit Quality Indicators

The following table presents the disaggregation of defaulted notes by year of origination as of March 31, 2020:

(Expressed in thousands)
	As of March 31, 2020
2020	$	—
2019	555
2018	186
2017	769
2016	875
2015 and prior	2,933
Total	$	5,318

Financing Receivable, Allowance for Credit Loss

The following table presents activity in the allowance for uncollectibles of defaulted notes for the three months ended March 31, 2020:

(Expressed in thousands)
Beginning balance, January 1, 2020 upon adoption of ASU 2016-13	$	3,673
Additions	235
Ending balance, March 31, 2020	$	3,908