Receivables (Aging of past due financing receivables) (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	$ 124,302	$ 122,307
Total Financing Receivables	124,302
Recognized revenue
Financing Receivable Recorded Investment Past Due [Line Items]
Total Financing Receivables	102,632
Deferred revenue
Financing Receivable Recorded Investment Past Due [Line Items]
Total Financing Receivables	21,670
31-60 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	3,586
31-60 Days Past Due | Recognized revenue
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	3,065
31-60 Days Past Due | Deferred revenue
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	521
61-90 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	1,432
61-90 Days Past Due | Recognized revenue
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	1,242
61-90 Days Past Due | Deferred revenue
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	190
91-120 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	1,008
91-120 Days Past Due | Recognized revenue
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	786
91-120 Days Past Due | Deferred revenue
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	222
Greater than 120 Day Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	8,703
Greater than 120 Day Past Due | Recognized revenue
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	5,945
Greater than 120 Day Past Due | Deferred revenue
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	2,758
Total Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	14,729
Total Past Due | Recognized revenue
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	11,038
Total Past Due | Deferred revenue
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	3,691
Current
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	109,573
Current | Recognized revenue
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	91,594
Current | Deferred revenue
Financing Receivable Recorded Investment Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	$ 17,979