Current Expected Credit Losses - Schedule of Financed Sale Receivables by Credit Quality Indicator (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Financing Receivable Recorded Investment [Line Items]
Financed sales receivables, By Origination Year, Current fiscal year	$ 1,187	$ 8,816
Financed sales receivables, By Origination Year, Before lastest fiscal year	8,697	11,981
Financed sales receivables, By Origination Year, Two year before latest fiscal year	11,918	14,903
Financed sales receivables, By Origination Year, Three year before latest fiscal year	14,305	17,247
Financed sales receivables, By Origination Year, Four year before latest fiscal year	16,643	17,859
Financed sales receivables, By Origination Year, Prior	64,954	48,864
Financed sales receivables, Total	138,908	139,641
Financing Receivable [Member]
Financing Receivable Recorded Investment [Line Items]
Financed sales receivables, Total	117,704	119,670
In Good Standing [Member]
Financing Receivable Recorded Investment [Line Items]
Financed sales receivables, By Origination Year, Current fiscal year	413	6,830
Financed sales receivables, By Origination Year, Before lastest fiscal year	5,255	5,480
Financed sales receivables, By Origination Year, Two year before latest fiscal year	4,386	3,547
Financed sales receivables, By Origination Year, Three year before latest fiscal year	2,536	3,740
Financed sales receivables, By Origination Year, Four year before latest fiscal year	3,370	5,072
Financed sales receivables, By Origination Year, Prior	15,268	12,660
In Good Standing [Member] | Financing Receivable [Member]
Financing Receivable Recorded Investment [Line Items]
Financed sales receivables, Total	31,228	37,329
Credit Watch [Member]
Financing Receivable Recorded Investment [Line Items]
Financed sales receivables, By Origination Year, Current fiscal year	774	1,986
Financed sales receivables, By Origination Year, Before lastest fiscal year	3,442	6,501
Financed sales receivables, By Origination Year, Two year before latest fiscal year	7,532	11,356
Financed sales receivables, By Origination Year, Three year before latest fiscal year	11,769	12,520
Financed sales receivables, By Origination Year, Four year before latest fiscal year	11,233	11,446
Financed sales receivables, By Origination Year, Prior	43,817	34,351
Credit Watch [Member] | Financing Receivable [Member]
Financing Receivable Recorded Investment [Line Items]
Financed sales receivables, Total	78,567	78,160
Pre-Approved Transactions [Member]
Financing Receivable Recorded Investment [Line Items]
Financed sales receivables, By Origination Year, Four year before latest fiscal year		613
Financed sales receivables, By Origination Year, Prior	709	755
Pre-Approved Transactions [Member] | Financing Receivable [Member]
Financing Receivable Recorded Investment [Line Items]
Financed sales receivables, Total	709	1,368
Transactions Suspended [Member]
Financing Receivable Recorded Investment [Line Items]
Financed sales receivables, By Origination Year, Three year before latest fiscal year		987
Financed sales receivables, By Origination Year, Four year before latest fiscal year	2,040	728
Financed sales receivables, By Origination Year, Prior	5,160	1,098
Transactions Suspended [Member] | Financing Receivable [Member]
Financing Receivable Recorded Investment [Line Items]
Financed sales receivables, Total	$ 7,200	$ 2,813