Receivables - Installment Receivables by Class (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Total Installment Receivables
Non-impaired installment receivables with no related allowance recorded	$ 670	$ 689
Impaired installment receivables with a related allowance recorded	1,779	2,671
Total installment receivables	2,449	3,360
Unpaid Principal Balance
Non-impaired installment receivables with no related allowance recorded	648	667
Impaired installment receivables with a related allowance recorded	1,779	2,671
Total installment receivables	2,427	3,338
Related Allowance for Doubtful Accounts
Impaired installment receivables with a related allowance recorded	1,514	1,542
Interest Income Recognized
Non-impaired installment receivables with no related allowance recorded	92	127
Impaired installment receivables with a related allowance recorded	0	0
Total installment receivables	92	127
U.S.
Total Installment Receivables
Impaired installment receivables with a related allowance recorded	1,762	2,669
Unpaid Principal Balance
Impaired installment receivables with a related allowance recorded	1,762	2,669
Related Allowance for Doubtful Accounts
Impaired installment receivables with a related allowance recorded	1,497	1,540
Interest Income Recognized
Impaired installment receivables with a related allowance recorded	0	0
CANADA
Total Installment Receivables
Non-impaired installment receivables with no related allowance recorded	670	689
Impaired installment receivables with a related allowance recorded	17	2
Total installment receivables	687	691
Unpaid Principal Balance
Non-impaired installment receivables with no related allowance recorded	648	667
Impaired installment receivables with a related allowance recorded	17	2
Total installment receivables	665	669
Related Allowance for Doubtful Accounts
Impaired installment receivables with a related allowance recorded	17	2
Interest Income Recognized
Non-impaired installment receivables with no related allowance recorded	92	127
Impaired installment receivables with a related allowance recorded	0	0
Total installment receivables	$ 92	$ 127

Financing Receivable, Interest Income, Accrual Method

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- Definition

Financing Receivable, Recorded Investment

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Financing Receivable, Unpaid Principal Balance

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Financing Receivable, with No Related Allowance, Recorded Investment

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Financing Receivable, with No Related Allowance, Unpaid Principal Balance

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Impaired Financing Receivable, Related Allowance [Abstract]

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Amount of allowance for credit losses related to recorded investment.

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Amount of interest income, recognized on accrual basis, on financing receivables, for which there is a related allowance for credit losses and are recognized as impaired.

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Amount of investment in impaired financing receivables for which there is a related allowance for credit losses.

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Unpaid principal balance of impaired financing receivables for which there is a related allowance for credit losses.

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