Receivables (Narrative) (Details)	6 Months Ended
	Jun. 30, 2020 USD ($) payment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Adoption of Credit Loss Standard	$ (243,000)
Contingent Liability, Guarantee	$ 306,000
Number of missed payments before delinquent | payment	3
Typical financing period	12 months
Credit amount requiring additional analysis	$ 250,000
Average period of adjudication	18 months
Installment receivable purchased from DLL	$ 286,000
Risk Level, Low
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivables, Expected Loss Percentage, North America excluding Canada	1.00%
Receivables, Expected Loss Percentage, Canada	0.20%
Receivables, Expected Loss Percentage, Europe	0.30%
Receivables, Expected Loss Percentage, AsiaPac	0.30%
Risk Level, Medium
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivables, Expected Loss Percentage, Europe	0.90%
Risk Level, High
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivables, Expected Loss Percentage, Europe	2.70%