Receivables - Schedule of Net Investment in Leases and Financed Sale Receivables with Billed Amounts Past Due Continues to Accrue Finance Income (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
Financing Receivable Recorded Investment Past Due [Line Items]
Billed	$ 12,260	$ 12,765
Unbilled	131,091	134,496
Allowance for Credit Losses	(11,841)	(6,212)
Total financing receivables	131,510	141,049
Net Investment in Leases [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Billed	1,724	1,648
Unbilled	26,832	27,542
Allowance for Credit Losses	(706)	(798)	$ (581)	$ (557)
Total financing receivables	27,850	28,392
Net Financed Sales Receivables [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Billed	10,536	11,117
Unbilled	104,259	106,954
Allowance for Credit Losses	(11,135)	(5,414)	$ (7,491)	$ (7,274)
Total financing receivables	103,660	112,657
Accrued and Current [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Billed	1,504	1,975
Accrued and Current [Member] | Net Investment in Leases [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Billed	248	225
Accrued and Current [Member] | Net Financed Sales Receivables [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Billed	1,256	1,750
30 to 89 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Billed	2,802	1,145
30 to 89 Days Past Due [Member] | Net Investment in Leases [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Billed	364	156
30 to 89 Days Past Due [Member] | Net Financed Sales Receivables [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Billed	2,438	989
Equal To Greater Than 90 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Billed	7,954	9,645
Equal To Greater Than 90 Days Past Due [Member] | Net Investment in Leases [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Billed	1,112	1,267
Equal To Greater Than 90 Days Past Due [Member] | Net Financed Sales Receivables [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Billed	6,842	8,378
Net Investment in Leases and Financed Sale Receivables Continue to Accrue Finance Income [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Billed	8,940	8,978
Unbilled	50,438	54,058
Allowance for Credit Losses	(1,143)	(1,589)
Total financing receivables	58,235	61,447
Net Investment in Leases and Financed Sale Receivables Continue to Accrue Finance Income [Member] | Net Investment in Leases [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Billed	1,598	1,100
Unbilled	14,084	12,619
Allowance for Credit Losses	(167)	(176)
Total financing receivables	15,515	13,543
Net Investment in Leases and Financed Sale Receivables Continue to Accrue Finance Income [Member] | Net Financed Sales Receivables [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Billed	7,342	7,878
Unbilled	36,354	41,439
Allowance for Credit Losses	(976)	(1,413)
Total financing receivables	42,720	47,904
Net Investment in Leases and Financed Sale Receivables Continue to Accrue Finance Income [Member] | Accrued and Current [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Billed	743	1,102
Net Investment in Leases and Financed Sale Receivables Continue to Accrue Finance Income [Member] | Accrued and Current [Member] | Net Investment in Leases [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Billed	144	143
Net Investment in Leases and Financed Sale Receivables Continue to Accrue Finance Income [Member] | Accrued and Current [Member] | Net Financed Sales Receivables [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Billed	599	959
Net Investment in Leases and Financed Sale Receivables Continue to Accrue Finance Income [Member] | 30 to 89 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Billed	1,675	861
Net Investment in Leases and Financed Sale Receivables Continue to Accrue Finance Income [Member] | 30 to 89 Days Past Due [Member] | Net Investment in Leases [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Billed	320	132
Net Investment in Leases and Financed Sale Receivables Continue to Accrue Finance Income [Member] | 30 to 89 Days Past Due [Member] | Net Financed Sales Receivables [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Billed	1,355	729
Net Investment in Leases and Financed Sale Receivables Continue to Accrue Finance Income [Member] | Equal To Greater Than 90 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Billed	6,522	7,015
Net Investment in Leases and Financed Sale Receivables Continue to Accrue Finance Income [Member] | Equal To Greater Than 90 Days Past Due [Member] | Net Investment in Leases [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Billed	1,134	825
Net Investment in Leases and Financed Sale Receivables Continue to Accrue Finance Income [Member] | Equal To Greater Than 90 Days Past Due [Member] | Net Financed Sales Receivables [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Billed	$ 5,388	$ 6,190