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GOODWILL AND LONG-LIVED ASSETS - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 59,367	$ 59,608
Accumulated Amortization	36,566	35,298
Net Carrying Value	22,801	24,310
Merchant relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	19,420	19,976
Accumulated Amortization	13,037	12,554
Net Carrying Value	6,383	7,422
Trade names
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	9,533	9,604
Accumulated Amortization	8,260	8,215
Net Carrying Value	1,273	1,389
Patents
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	12,856	12,455
Accumulated Amortization	5,893	5,712
Net Carrying Value	6,963	6,743
Other intangible assets
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	17,558	17,573
Accumulated Amortization	9,376	8,817
Net Carrying Value	$ 8,182	$ 8,756

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