Other Assets, Net (Narrative) (Details) € in Thousands, $ in Thousands	1 Months Ended
	Jan. 31, 2019 EUR (€)	Dec. 31, 2019 USD ($)	Jan. 31, 2019 USD ($)
Other Accrued Current Liabilities [Member]
Other Assets, Net [Line Items]
Software Purchase, Outstanding Liabilities		$ 285
Other Long Term Liabilities [Member]
Other Assets, Net [Line Items]
Software Purchase, Outstanding Liabilities		$ 921
Soundperience [Member]
Other Assets, Net [Line Items]
Payments for Software | €	€ 1,829
Percent Of Ownership Interest Transferred	49.00%
Period of future quarterly installments of non-cash amounts, software capitalization	4 years
Soundperience [Member] | Cash Paid At Closing [Member]
Other Assets, Net [Line Items]
Software, capitalized cost			$ 586
Soundperience [Member] | Software, Future Quarterly Installments Next Four Years [Member]
Other Assets, Net [Line Items]
Software, capitalized cost			869
Soundperience [Member] | Due In January 2023 [Member]
Other Assets, Net [Line Items]
Software, capitalized cost			533
Soundperience [Member] | Software, Value Of Partnership And License Agreement Transferred [Member]
Other Assets, Net [Line Items]
Software, capitalized cost			$ 1,691