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BUSINESS SEGMENT INFORMATION (segment results) (Details) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2020 USD ($) customers | Sep. 30, 2020 USD ($) | Jun. 30, 2020 USD ($) | Mar. 31, 2020 USD ($) | Dec. 31, 2021 USD ($) segment customers | Dec. 31, 2020 USD ($) customers | Dec. 31, 2019 USD ($) customers
Business segment information [Line Items] |  |  |  |  |  |  |  |
Number of reportable segments | segment |  |  |  |  | 4 |  |  |
Revenue | $ 454,492 | $ 439,461 | $ 410,405 | $ 486,423 | $ 2,022,197 | $ 1,790,781 | $ 2,008,715 |
Depreciation and amortization |  |  |  |  | (148,767) | (110,792) | (126,036) |
Interest expense |  |  |  |  | (55,554) | (23,140) | (34,682) |
Net income attributable to non-controlling Interest |  |  |  |  | 139 | 91 | 0 |
Asset impairment charges |  |  |  |  | 0 | (101,749) | (421,090) |
Restructuring, integration and other costs |  |  |  |  | (58,947) | (80,665) | (79,511) |
CEO transition costs |  |  |  |  | 0 | 30 | (9,390) | [1]
Share-based compensation expense |  |  |  |  | (29,477) | (21,824) | (19,702) |
Share-based compensation expense |  |  |  |  |  |  | (19,138) |
Acquisition transaction costs |  |  |  |  | (18,913) | (8) | (215) |
Certain legal-related (expense) benefit |  |  |  |  | (2,443) | 2,164 | (6,420) |
Loss on sales of businesses and customer lists |  |  |  |  | 0 | (1,846) | (124) |
Income (loss) before income taxes |  |  |  |  | 93,803 | 26,803 | (215,740) |
Reportable business segments [Member] |  |  |  |  |  |  |  |
Business segment information [Line Items] |  |  |  |  |  |  |  |
Adjusted EBITDA |  |  |  |  | 585,356 | 538,022 | 655,538 |
Reportable business segments [Member] | Payments [Member] |  |  |  |  |  |  |  |
Business segment information [Line Items] |  |  |  |  |  |  |  |
Revenue |  |  |  |  | 510,359 | 301,901 | 269,573 |
Adjusted EBITDA |  |  |  |  | 105,576 | 68,117 | 74,384 |
Reportable business segments [Member] | Cloud Solutions [Member] |  |  |  |  |  |  |  |
Business segment information [Line Items] |  |  |  |  |  |  |  |
Revenue |  |  |  |  | 262,310 | 252,773 | 318,383 |
Adjusted EBITDA |  |  |  |  | 70,172 | 61,580 | 77,199 |
Reportable business segments [Member] | Promotional Solutions [Member] |  |  |  |  |  |  |  |
Business segment information [Line Items] |  |  |  |  |  |  |  |
Revenue |  |  |  |  | 546,473 | 529,649 | 640,892 |
Adjusted EBITDA |  |  |  |  | 85,384 | 66,620 | 101,293 |
Reportable business segments [Member] | Checks [Member] |  |  |  |  |  |  |  |
Business segment information [Line Items] |  |  |  |  |  |  |  |
Revenue |  |  |  |  | 703,055 | 706,458 | 779,867 |
Adjusted EBITDA |  |  |  |  | 324,224 | 341,705 | 402,662 |
Corporate operations [Member] |  |  |  |  |  |  |  |
Business segment information [Line Items] |  |  |  |  |  |  |  |
Adjusted EBITDA |  |  |  |  | $ (177,591) | $ (173,480) | $ (174,672) |
Customer concentration risk [Member] |  |  |  |  |  |  |  |
Business segment information [Line Items] |  |  |  |  |  |  |  |
Number of customers | customers | 0 |  |  |  | 0 | 0 | 0 |
Customer concentration risk [Member] | Total revenue benchmark [Member] | Major customers [Member] |  |  |  |  |  |  |  |
Business segment information [Line Items] |  |  |  |  |  |  |  |
Concentration risk, percentage |  |  |  |  | 10.00% | 10.00% | 10.00% |
[1] | In 2019, CEO transition costs includes share-based compensation expense related to the modification of certain awards in conjunction with our CEO transition (Note 9).

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