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FAIR VALUE MEASUREMENTS (goodwill and non-recurring asset impairment analyses) (Details) $ in Thousands			3 Months Ended						9 Months Ended	12 Months Ended
		Mar. 31, 2020 USD ($) reporting_units	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Jun. 30, 2021 USD ($) reporting_units	Mar. 31, 2021 reporting_units	Sep. 30, 2020 USD ($) reporting_units	Mar. 31, 2020 USD ($)	Sep. 30, 2020 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Jul. 31, 2022 USD ($)	Jul. 31, 2020 USD ($)	Jan. 01, 2020 USD ($)
Schedule of asset impairment analyses [Line Items]
Goodwill impairment charge			$ 0	$ 0	$ 0		$ 0	$ 71,449
Goodwill										$ 1,431,385	$ 1,430,141	$ 702,958
Asset impairment charges										0	0
Total asset impairment charges										0	0	101,749
Reportable business segments [Member] | Payments [Member]
Schedule of asset impairment analyses [Line Items]
Number of reporting units | reporting_units					4	1
Goodwill										896,681	895,338	168,165
Reportable business segments [Member] | Promotional Solutions [Member]
Schedule of asset impairment analyses [Line Items]
Number of reporting units | reporting_units					2	1
Goodwill										$ 59,076	$ 59,175	$ 59,165
Nonrecurring [Member] | Assets held for sale [Member]
Schedule of asset impairment analyses [Line Items]
Asset impairment charges									$ 7,514
Fair value as of measurement date							11,210		11,210
Nonrecurring [Member] | Customer lists/relationships [Member] | Small business distributors [Member]
Schedule of asset impairment analyses [Line Items]
Asset impairment charges							2,356	2,752	5,108
Fair value as of measurement date							$ 4,479		$ 4,479
Nonrecurring [Member] | Measurement input, revenue growth rate [Member] | Customer lists/relationships [Member] | Small business distributors [Member]
Schedule of asset impairment analyses [Line Items]
Intangibles fair value inputs							0.00%		0.00%
Nonrecurring [Member] | Measurement input, gross margin growth rate [Member] | Customer lists/relationships [Member] | Small business distributors [Member]
Schedule of asset impairment analyses [Line Items]
Intangibles fair value inputs							1.00%		1.00%
Nonrecurring [Member] | Measurement input, discount rate [Member] | Customer lists/relationships [Member] | Small business distributors [Member]
Schedule of asset impairment analyses [Line Items]
Intangibles fair value inputs							11.00%		11.00%
Significant unobservable inputs (Level 3) [Member] | Assets held for sale [Member]
Schedule of asset impairment analyses [Line Items]
Fair value as of measurement date							$ 11,210		$ 11,210
Significant unobservable inputs (Level 3) [Member] | Nonrecurring [Member] | Customer lists/relationships [Member] | Small business distributors [Member]
Schedule of asset impairment analyses [Line Items]
Fair value as of measurement date							$ 4,479		$ 4,479
Data Analytics reporting unit [Member]
Schedule of asset impairment analyses [Line Items]
Excess of fair value over carrying value of reporting unit's net assets													$ 46,000	$ 100,000
Excess of fair value over carrying value of reporting unit, percentage													39.00%	63.00%
Reporting units for which qualitative analysis completed [Member]
Schedule of asset impairment analyses [Line Items]
Number of reporting units | reporting_units							2
Payments reporting unit [Member]
Schedule of asset impairment analyses [Line Items]
Excess of fair value over carrying value of reporting unit's net assets															$ 490,000
Excess of fair value over carrying value of reporting unit, percentage															189.00%
Checks reporting unit [Member]
Schedule of asset impairment analyses [Line Items]
Excess of fair value over carrying value of reporting unit's net assets															$ 954,000
Excess of fair value over carrying value of reporting unit, percentage															180.00%
Reporting units for which quantitative analysis completed [Member]
Schedule of asset impairment analyses [Line Items]
Number of reporting units | reporting_units		2					2
Reporting units for which quantitative analysis completed [Member] | Minimum [Member]
Schedule of asset impairment analyses [Line Items]
Excess of fair value over carrying value of reporting unit's net assets															$ 37,000
Excess of fair value over carrying value of reporting unit, percentage															121.00%
Reporting units for which quantitative analysis completed [Member] | Maximum [Member]
Schedule of asset impairment analyses [Line Items]
Excess of fair value over carrying value of reporting unit's net assets															$ 954,000
Excess of fair value over carrying value of reporting unit, percentage															189.00%
Promotional Solutions reporting unit [Member]
Schedule of asset impairment analyses [Line Items]
Goodwill impairment charge								67,132
Excess of fair value over carrying value of reporting unit's net assets														$ 210,000
Excess of fair value over carrying value of reporting unit, percentage														132.00%
Goodwill		$ 59,009						59,009
Direct-to-Consumer reporting unit [Member]
Schedule of asset impairment analyses [Line Items]
Excess of fair value over carrying value of reporting unit's net assets															$ 35,000
Excess of fair value over carrying value of reporting unit, percentage															26.00%
Data Solutions Web Hosting reporting unit [Member]
Schedule of asset impairment analyses [Line Items]
Goodwill impairment charge								4,317
Data Solutions Web Hosting reporting unit [Member] | Nonrecurring [Member] | Intangible assets [Member]
Schedule of asset impairment analyses [Line Items]
Asset impairment charges	[1]							17,678
Fair value as of measurement date		$ 2,172						2,172
Data Solutions Web Hosting reporting unit [Member] | Nonrecurring [Member] | Customer lists/relationships [Member]
Schedule of asset impairment analyses [Line Items]
Asset impairment charges								8,397
Data Solutions Web Hosting reporting unit [Member] | Nonrecurring [Member] | Internal-use software [Member]
Schedule of asset impairment analyses [Line Items]
Asset impairment charges								6,932
Data Solutions Web Hosting reporting unit [Member] | Nonrecurring [Member] | Other intangible assets [Member]
Schedule of asset impairment analyses [Line Items]
Asset impairment charges								$ 2,349
Data Solutions Web Hosting reporting unit [Member] | Nonrecurring [Member] | Measurement input, revenue growth rate [Member] | Intangible assets [Member]
Schedule of asset impairment analyses [Line Items]
Intangibles fair value inputs		(31.00%)						(31.00%)
Data Solutions Web Hosting reporting unit [Member] | Nonrecurring [Member] | Measurement input, gross margin growth rate [Member] | Intangible assets [Member]
Schedule of asset impairment analyses [Line Items]
Intangibles fair value inputs		(5.20%)						(5.20%)
Data Solutions Web Hosting reporting unit [Member] | Nonrecurring [Member] | Measurement input, discount rate [Member] | Intangible assets [Member]
Schedule of asset impairment analyses [Line Items]
Intangibles fair value inputs		9.00%						9.00%
Data Solutions Web Hosting reporting unit [Member] | Significant unobservable inputs (Level 3) [Member] | Nonrecurring [Member] | Intangible assets [Member]
Schedule of asset impairment analyses [Line Items]
Fair value as of measurement date		$ 2,172						$ 2,172
[1] The impairment charge consisted of $8,397 related to customer lists, $6,932 related to internal-use software and $2,349 related to other intangible assets.

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