SIGNIFICANT ACCOUNTING POLICIES (income taxes, revenue recognition) (Details)	12 Months Ended
	Dec. 31, 2021
Income taxes
Measurement of tax benefit, minimum percentage tax benefit must be likely to be realized	50.00%
Variable consideration, period over which finalized	4 months
Deferred revenue, period over which recognized	1 year
Contract costs practical expedient period	1 year
Minimum [Member]
Capitalized contract costs amortization period	2 years
Maximum [Member]
Capitalized contract costs amortization period	5 years
Data-driven marketing and treasury management solutions [Member] | Minimum [Member]
Remaining performance obligations, expected timing of satisfaction	3 months
Data-driven marketing and treasury management solutions [Member] | Maximum [Member]
Remaining performance obligations, expected timing of satisfaction	1 year