Business Combinations (Acquired Intangible Assets) (Details) - YourCause [Member] $ in Thousands	Jan. 02, 2019 USD ($)
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets acquired	$ 74,690
Weighted average amortization period (in years)	13 years
Acquired technology [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets acquired	$ 47,800
Weighted average amortization period (in years)	12 years
Customer relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets acquired	$ 25,900
Weighted average amortization period (in years)	15 years
Marketing assets [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets acquired	$ 830
Weighted average amortization period (in years)	2 years
Non-compete agreements [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets acquired	$ 160
Weighted average amortization period (in years)	0 years