Receivables - Schedule of Aging Analysis for Net Investment in Leases and Financed Sale Receivables (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
Financing Receivable Recorded Investment Current And Past Due [Line Items]
Billed	$ 14,788		$ 12,765
Unbilled	124,111		134,496
Financed sales receivables, Total	138,899		147,261
Allowance for Credit Losses	(11,726)		(6,212)
Total financing receivables	127,173		141,049
Net Investment in Leases [Member]
Financing Receivable Recorded Investment Current And Past Due [Line Items]
Billed	2,640		1,648
Unbilled	24,761		27,542
Financed sales receivables, Total	27,401		29,190
Allowance for Credit Losses	(688)	$ (706)	(798)	$ (579)	$ (581)	$ (557)
Total financing receivables	26,713		28,392
Net Financed Sales Receivables [Member]
Financing Receivable Recorded Investment Current And Past Due [Line Items]
Billed	12,148		11,117
Unbilled	99,350		106,954
Financed sales receivables, Total	111,498		118,071
Allowance for Credit Losses	(11,038)	$ (11,135)	(5,414)	$ (7,113)	$ (7,491)	$ (7,274)
Total financing receivables	100,460		112,657
Accrued and Current [Member]
Financing Receivable Recorded Investment Current And Past Due [Line Items]
Billed	1,322		1,975
Accrued and Current [Member] | Net Investment in Leases [Member]
Financing Receivable Recorded Investment Current And Past Due [Line Items]
Billed	229		225
Accrued and Current [Member] | Net Financed Sales Receivables [Member]
Financing Receivable Recorded Investment Current And Past Due [Line Items]
Billed	1,093		1,750
30 to 89 Days Past Due [Member]
Financing Receivable Recorded Investment Current And Past Due [Line Items]
Billed	2,986		1,145
30 to 89 Days Past Due [Member] | Net Investment in Leases [Member]
Financing Receivable Recorded Investment Current And Past Due [Line Items]
Billed	477		156
30 to 89 Days Past Due [Member] | Net Financed Sales Receivables [Member]
Financing Receivable Recorded Investment Current And Past Due [Line Items]
Billed	2,509		989
Equal To Greater Than 90 Days Past Due [Member]
Financing Receivable Recorded Investment Current And Past Due [Line Items]
Billed	10,480		9,645
Equal To Greater Than 90 Days Past Due [Member] | Net Investment in Leases [Member]
Financing Receivable Recorded Investment Current And Past Due [Line Items]
Billed	1,934		1,267
Equal To Greater Than 90 Days Past Due [Member] | Net Financed Sales Receivables [Member]
Financing Receivable Recorded Investment Current And Past Due [Line Items]
Billed	$ 8,546		$ 8,378