Business Acquisition (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2020 USD ($)
Business Acquisition Contributed Total Revenue	$ 2,900
Total consideration of transaction, net of cash acquired	27,000
Purchase accounting adjustments (2)	6,935
Goodwill, Acquired During Period	16,466
Business Acquisition, Purchase Price Allocation, Goodwill, Expected Tax Deductible Amount	16,500
Digital Media Segment [Member]
Purchase accounting adjustments (2)	9,065
Goodwill, Acquired During Period	622
Voice, Backup, Security and CPP [Member]
Purchase accounting adjustments (2)	2,130
Goodwill, Acquired During Period	$ 0