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Business Acquisitions (Narrative) (Details) $ in Thousands | 9 Months Ended
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Sep. 30, 2021 USD ($)
Business Acquisition [Line Items] |
Increase (decrease) in goodwill from adjustment under purchase accounting | $ (963)
Goodwill acquired during period | 85,552
Digital Media |
Business Acquisition [Line Items] |
Increase (decrease) in goodwill from adjustment under purchase accounting | (1,500)
Digital Media | Operating Segments |
Business Acquisition [Line Items] |
Increase (decrease) in goodwill from adjustment under purchase accounting | (1,468)
Goodwill acquired during period | 44,400
Voice, Backup, Security and CPP |
Business Acquisition [Line Items] |
Increase (decrease) in goodwill from adjustment under purchase accounting | 500
Voice, Backup, Security and CPP | Operating Segments |
Business Acquisition [Line Items] |
Increase (decrease) in goodwill from adjustment under purchase accounting | 505
Goodwill acquired during period | 0
Fiscal 2021 Acquisitions |
Business Acquisition [Line Items] |
Revenue of acquiree since acquisition date | 21,300
Total consideration of transactions | 135,100
Goodwill acquired during period | 85,600
Expected income tax deductible amount | $ 44,100

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